TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.10 DEFINITIONS
Section 905.10 Definitions
In addition to the definitions
contained in the Private Sewage Disposal Licensing Act [225 ILCS 225], the
following definitions shall apply:
"Act"
means the Private Sewage Disposal Licensing Act [225 ILCS 225].
"Aerobic
Treatment Plant" means equipment or devices for the treatment of sewage by
the forced addition of air or oxygen.
"Ag
Experiment Station" means the University of Illinois at Urbana-Champaign Agricultural
Experiment Station.
"Approved"
or "Approval" means accepted by or acceptable to the Department or
local authority.
"Approved Certification
Agency" means an organization that has been accredited by the American
National Standards Institute (ANSI) and has been found to meet the requirements
specified in the International Organization for Standardization
(ISO)/International Electrotechnical Commission Guide 65 to evaluate wastewater
treatment units and components for compliance with National Sanitation
Foundation (NSF) International/ANSI Standards.
"Building Drain" means
that part of the lowest horizontal piping of a drainage system that receives
the discharge from soil, waste and other drainage pipes inside the walls of the
building and conveys it to the building (house) sewer. The building drain's
developed length terminates 5 feet outside the building foundation wall.
"Building
Sewer" means that part of the horizontal piping of a drainage system that
extends from the end of the building drain, receives the discharge of the
building drain and conveys it to a public sanitary sewer or private sewage
disposal system. The building sewer commences 5 feet outside the building
foundation wall.
"Clear Water" means
cooling water and condensate water from refrigeration or air conditioning
equipment, cooled condensate from steam heating systems and sub-soil drainage.
"Common
Collector" means an underground enclosed conduit designed to carry treated
sewage effluent exclusive of storm water and that serves more than one
property.
"Common Property" means
the property that is used by all owners or tenants for a private sewage
disposal system.
"Component"
means an integral part of a private sewage disposal system that is necessary
for the satisfactory design, construction and operation of the system.
"Discharge Point" means
the point at which treated effluent discharges from an approved private sewage
disposal system, which is compliant with Section 905.110(a).
"Domestic Sewage" means
waste water derived principally from dwellings, business or office buildings,
institutions, food service establishments and similar facilities.
"Effective
Size" means the size of screen opening where 90 percent by weight of a
sample of filter media is retained on the screen and 10 percent passes through
the screen.
"Effluent" means treated
or partially treated liquid discharged from a private sewage disposal system or
a component.
"Estimated Seasonal High
Water Table" means the highest level to which the soil is saturated, as
determined by direct observation or as may be determined by a Soil Classifier
examining additional information.
"Gravelless
Seepage System" means the use of approved perforated 8-inch or 10-inch
diameter filter-wrapped plastic pipe in lieu of 4-inch pipe and gravel, in
subsurface fields and serial distribution systems.
"Hot
Tub" means an artificial container of water with a liquid capacity greater
than 100 gallons and designed with a mechanical air injection system or re-circulating
device. These devices may filter or disinfect the water for reuse and are not
intended to be drained between uses.
"Influent" means
something that flows into a private sewage disposal system or a component.
"Limiting
Layer" means a horizon or condition in the soil profile or underlying
strata that includes:
An estimated
high water table, whether perched or regional.
Masses of
loose rock fragments, including gravel, with insufficient fine soil to fill the
voids between the fragments.
Rock
formation, other stratum or soil condition that is so slowly permeable that it
effectively limits downward passage of effluent.
"Liquid
Capacity" means the volume of a tank below the invert of the outlet line.
"Local
Authority" means a local unit of government that enforces a private sewage
disposal ordinance that has been approved by the Department; or a local health
department that has been designated an agent of the State for conduct of the
Private Sewage Disposal Program.
"Maintained and Serviced"
means the tasks, procedures and inspections required by the manufacturer of the
component/system or the Department for the private sewage disposal system to
operate within the parameters and requirements of this Part and any other
restrictions established as part of the system approval or as part of a
variance.
"Minimum Slope" means
the slope required for treated effluent to travel in the designed direction of
flow.
"Non-Residential
Property" means any property that is not residential property.
"NPDES Permit" means any
general or individual National Pollutant Discharge Elimination System permit
issued by the Illinois Environmental Protection Agency or the United States
Environmental Protection Agency.
"NSF
International" means the National Sanitation Foundation International, an
independent testing laboratory.
"NSF International/ANSI
Standard 40 Wastewater Treatment System" means any system that has been
certified by an approved certification agency to meet NSF International/ANSI
Standard 40, Residential Wastewater Treatment Systems.
"Portable Potable Hand
Washing Unit" means a self-contained, movable, potable water unit equipped
with a waste-receiving holding container that may be moved or transported from
site to site.
"Portable Sanitation Business"
means any partnership, company, limited liability company, corporation or
individual that sells, rents, leases, transports, services, cleans, sanitizes
or maintains a portable toilet or portable potable hand washing unit or pumps,
or transports or disposes of waste from portable toilets or portable potable
hand washing units.
"Portable Sanitation
Technician" means any individual who is certified by the Department to be
an employee for a portable sanitation business and who has completed the
training required by this Part.
"Portable Sanitation
Technician Trainee" means any individual who is certified by the
Department as an employee for a portable sanitation business for less than one
year.
"Portable Toilet" means
a self-contained, movable unit equipped with a waste-receiving holding
container that may be moved or transported from site to site.
"Proper Operation" means
operation of a system within the parameters and requirements of this Part, the
Act and any other restrictions established as part of the system approval or as
part of a variance.
"Residential
Property" means a single-family home or multi-family unit that is intended
for occupation as living quarters and is not used to conduct any business that
generates wastewater or domestic sewage.
"Septage"
means the solid and liquid wastes removed from private sewage disposal systems.
"Shall"
means that the stated provision is mandatory.
"Soil
Boring" means an observation pit, dug by hand or backhoe, or an
undisturbed soil core taken intact and undisturbed by a probe.
"Soil
Classifier" means one of the following:
A Certified
Professional Soil Classifier (CPSC) who is certified by the Illinois Soil
Classifiers Association (ISCA) or a certified soil classifier with the American
Registry of Certified Professionals in Agronomy, Crops and Soils (ARCPACS).
A person who
is a full member or associate member of the Illinois Soil Classifiers Association
(ISCA), provided that direct supervision is provided to this person by an ISCA Certified
Professional Soil Classifier or ARCPACS certified soil classifier who
accompanies the person on at least 25% of the soil investigations and reviews
and signs all of that person's soil investigation reports.
"Sub-soil Drainage"
means groundwater such as runoff water, seepage water or clear water from the
soil that is free from domestic sewage.
"Subsurface
Seepage System" means a subsurface seepage field or seepage bed.
"Uniformity
Coefficient" means a number obtained by dividing that size of sand in
millimeters of which 60% by weight is smaller, by that size of sand in
millimeters of which 10% by weight is smaller.
"Waste"
means either human waste or domestic sewage or both.
"Wastewater
Source" means any equipment, facility or other source of any type
whatsoever that discharges wastewater, directly or indirectly, to the waters of
the State.
"Water
Table" means the upper limit of the portion of the soil or rock formation
that is completely saturated with water.
Soil science terms used throughout the text of this Part are
defined in the Soil Science Society of America, Glossary of Soil Science Terms
unless otherwise defined.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
 | TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.15 INCORPORATED AND REFERENCED MATERIALS
Section 905.15 Incorporated
and Referenced Materials
The following materials are
incorporated or referenced in this Part:
a) The
following materials are incorporated by reference:
1) NSF International/ANSI Standard 46, Evaluation of Components
and Devices Used in Wastewater Treatment Systems (October 22, 2004) published
by:
NSF
International
789 Dixboro
Road
Ann Arbor,
Michigan 48105
Referenced in Sections 905.40 and 905.120
2) NSF International/ANSI Standard 40, Residential Wastewater
Treatment Systems (August 1, 2005) published by:
NSF
International
789 Dixboro
Road
Ann Arbor,
Michigan 48105
Referenced in Section 905.100
3) NSF International/ANSI Standard 41, Non-Liquid Saturated
Treatment Systems (March 28, 2005) published by:
NSF
International
789 Dixboro
Road
Ann Arbor,
Michigan 48105
Referenced in
Section 905.130
4) American Society for Testing and Materials (ASTM) required
standards and dates that are not listed in subsection (a)(5) are listed under
Appendix A, Illustration C. A list of approved plastic pipe for private sewage
disposal system uses and standards may be obtained from:
American
Society for Testing and Materials
100 Barr
Harbor Drive
West
Conshohocken, Pennsylvania 19428-2959
Referenced in
Sections 905.40, 905.60, 905.70
5) The
following ASTM standards for the physical properties and characteristics of
gravelless drainage pipe, which may be obtained from:
American Society for Testing and
Materials
100 Barr Harbor Drive
West Conshohocken, Pennsylvania
19428-2959
ASTM D4632-08 (2008)
ASTM D3786-09 (2009)
ASTM D737-08 (2008)
ASTM F662-86 (1992)
Referenced in Section 905.60(c)(2)
6) Standard Methods for Examination of Water and Wastewater (21st
Edition, October 2005) published by:
American
Public Health Association
1015 8th
Street
Washington
DC 20036
Referenced in
Section 905.110
7) Glossary of Soil Science Terms (2001) published by:
Soil
Science Society of America
677 South
Segoe Road
Madison,
Wisconsin 53711
Referenced
in Section 905.10
8) Standards for the Use or Disposal of Sewage Sludge (40 CFR
503) (2008)
Referenced in Section 905.170
9) National
Electrical Code, 2005 Edition, published by:
National
Fire Protection Association
1 Batterymarch
Park
Quincy,
Massachusetts 02269
Referenced in
Section 905.20
10) International
Organization for Standardization (ISO)/International Electrotechnical
Commission (IEC) Guide 65 (December 18, 2006), published by:
ISO Central Secretariat
International Organization for
Standardization (ISO)
1, ch. de la Voie-Creuse
Case postale 56
CH-1211 Geneva 20
Switzerland
IEC Central Office
3, rue de Varembé
PO Box 131
CH-1211 Geneva 20
Switzerland
Referenced in
Section 905.100
11) Field
Book for Describing and Sampling Soils ver. 2.0 (2002 Edition)
National Resources Conservation
Service
US Department of Agriculture
1400 Independence Ave., SW
Washington DC 20250
Referenced in
Section 905.55
12) Soil
Taxonomy 1999 (2nd edition)
US Department of Agriculture
1400 Independence Ave., SW
Washington DC 20250
Referenced in
Section 905.55
13) Soil
Survey Manual 1993
Soil Conservation Service
US Department of Agriculture
1400 Independence Ave., SW
Washington DC 20250
Referenced in
Section 605.55
b) The
following materials are referenced in this Part:
1) Department of Public Health administrative rules and statutes
A) Illinois Plumbing Code (77 Ill. Adm. Code 890)
Referenced in
Sections 905.20, 905.140, 905.150 and Appendix A, Illustration C
B) Recreational Area Code (77 Ill. Adm. Code 800)
Referenced in Section 905.150
C) Practice and Procedure in Administrative Hearings (77 Ill. Adm.
Code 100)
D) Plumbing
License Law [225 ILCS 320]
2) Pollution Control Board administrative rules and statutes
A) Introduction (35 Ill. Adm. Code 301)
Referenced in Section 905.110
B) Permits (35 Ill. Adm. Code 309)
Referenced in Sections 905.110 and 905.170
C) Waste Disposal (35 Ill. Adm. Code Subtitle G)
Referenced in Sections 905.20 and 905.140
D) Classification of
Injection Wells (35 Ill. Adm. Code 704.106)
Referenced in
Appendix A, Illustration D
3) Illinois Department of Transportation Standard Specifications
for Road and Bridge
Construction (January 1, 2007) published by:
Illinois Department of Transportation
Manuals Office, Room 128
2300 S. Dirksen Parkway
Springfield, Illinois 62764
Referenced in Section 905.95
4) Illinois Highway Code
[605 ILCS 5/9-123]
Referenced in
Section 905.110
c) All incorporations by reference of federal regulations and the
standards of nationally recognized organizations refer to the regulations and
standards on the date specified and do not include any amendments or editions
subsequent to the date specified.
d) All citations to federal regulations in this Part concern the
specified regulation in the 2005 Code of Federal Regulations, unless another
date is specified.
e) All materials incorporated by reference are available for
inspection and copying at the Illinois Department of Public Health, Division of
Environmental Health, 525 West Jefferson, Springfield, Illinois 62761.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.20 GENERAL REQUIREMENTS
Section 905.20 General
Requirements
a) Rate of Flow for Domestic Sewage. Each unit of the private
sewage disposal system shall be designed to treat the volume of domestic sewage
discharged to it. The volume of sewage flow shall be determined from Appendix
A, Illustration A. For non-residential establishments, the Department will
consider the use of actual flow volumes obtained from similar installations in
lieu of the quantities contained in Appendix A, Illustration A, when the flow
data is documented. Examples of the documentation that could be accepted would
be actual measurements of the quantity of wastewater, or water use receipts.
In the design of a private sewage disposal system, peak flows shall be designed
for or attenuated.
b) Type of Waste. A private sewage disposal system shall be
designed to receive all waste from the buildings served.
1) Prohibited Influent. No sub-soil drainage, discharge from
roof drains or swimming pool wastewater shall be directed to the private sewage
disposal system.
2) Hot Tub Wastewater. Wastewater generated by a hot tub or
similar device shall be discharged to one of the following:
A) A separate subsurface seepage system, provided that the seepage
field is designed to accommodate the liquid capacity of the hot tub on a daily
basis. A septic tank is not required in front of a seepage field receiving
flow from this device.
B) The seepage field serving the domestic wastewater flow,
provided the seepage field is increased in size to accommodate the additional
flow from the hot tub on a daily basis. This drainage shall be piped around
the septic tank and directly into the seepage field.
3) Motorized Equipment. Waste products, such as automotive
grease, oils, solvents and chemicals, shall not discharge to a private sewage
disposal system. These waste products shall be handled according to rules for
disposal of oil, gas and grease promulgated under the Environmental Protection
Act, or according to 35 Ill. Adm. Code, Subtitle G, or shall be taken to an oil
and gas reclamation center. The floor drain of any non-residential property
that meets the requirements of subsection (b)(3)(A) or (B), and is connected to
a public sewer, shall be connected to an approved gas and oil interceptor meeting
the requirements of Section 890.520 of the Illinois Plumbing Code. Wastes from
floor drains in areas where vehicles or motorized equipment are serviced and
parked shall be treated in accordance with the following:
A) For any non-residential property in which a floor drain may
receive fluids from vehicle or motorized equipment repair or maintenance
activities, floor drains shall be connected to a public sewer or holding tank
and not to a private sewage disposal system. Repair and maintenance facilities
shall include, but shall not be limited to, service stations and auto body,
muffler, transmission, small engine, and brake repair shops. Floor drains in
any facility that performs vehicle or motorized equipment repair work shall be
connected to a public sewer or holding tank. If the floor drain is connected
to a public sewer, then the floor drain shall be connected to an approved gas
and oil interceptor meeting the requirements of Section 890.520 of the Illinois
Plumbing Code. If the floor drain is connected to a holding tank, a gas and
oil interceptor is not required. The holding tank shall be constructed of the
same materials required for gas and oil interceptors.
B) For any non-residential property on which vehicles or motorized
equipment are parked or stored and repair or maintenance is not performed,
floor drains shall discharge to a public sewer or a private sewage disposal
system, provided that floor drains are used only to receive water from
motorized equipment or vehicle washing or to drain melted snow. When floor
drains in such properties are connected to a private sewage disposal system,
the system shall be increased in size based upon the anticipated daily flow.
When a maintenance area is adjacent to a parking area, physical barriers, such
as a raised curb or recessed floor in the maintenance area, shall be provided
to assure that oil and gas are not discharged to floor drains.
C) For any residential property with a garage of any size, floor
drains may discharge directly to a private sewage disposal system. No increase
in size of the residential private sewage disposal system is required to handle
this liquid waste.
4) Drains
or fixtures receiving any product other than domestic sewage or wastewater
specified in subsection (b)(2) shall be discharged to an approved treatment or
disposal system that is regulated and approved by the State or to a holding
tank and not to a private sewage disposal system.
5) Water
Softener Wastewater. Backwash water from a water softener or similar device
shall be discharged to one of the following:
A) A
separate subsurface seepage system, provided that the seepage field is designed
to accommodate the liquid capacity of the water softener on a daily basis. A
septic tank is not required in front of a seepage field receiving flow from
this device.
B) A
separate building drain, in accordance with the Illinois Plumbing Code, that
will discharge to a subsurface seepage system, provided that the seepage field
is designed to accommodate the flow from this device on a daily basis. A
septic tank is not required in front of a seepage field receiving flow from
this device.
c) Individual Service. The use of a private sewage system to
serve more than one property is prohibited except where a common property is
provided, under joint ownership of the users, or where the system is under
public jurisdiction or managed by a district established for the maintenance of
these systems.
d) Water and Sewer Line Separation. The following criteria shall
govern the separation of water supply lines and sewer lines:
1) Horizontal Separation. Sewers shall be installed at least 10
feet horizontally from any existing or proposed water line. When local
conditions prevent a lateral separation of 10 feet, a sewer may be laid closer
than 10 feet to a water line provided that the elevation of the crown of the
sewer is at least 18 inches below the invert of the water line.
2) Crossings. Where sewer lines must cross water lines, the
sewer line shall be laid at an elevation so that the crown of the sewer line is
at least 18 inches below the invert of the water line. This vertical
separation shall be maintained for that portion of the sewer line located
within 10 feet horizontally of any water line it crosses. When sewer lines must
cross above water lines, the sewer lines shall be Schedule 40 or equivalent
material with watertight joints.
e) Sanitary Sewer. New or renovated private sewage disposal
systems shall not be approved where a sanitary sewer operated and maintained
under permit of the Illinois Environmental Protection Agency is available for
connection. A sanitary sewer is available for connection when it is within 300
feet of a residential property or a non-residential property with a sewage flow
less than 1500 gallons per day, or within 1000 feet of a non-residential
property with a sewage flow greater than or equal to 1500 gallons per day,
unless a physical barrier or local ordinance exists that prevents connection to
the sewer. If connection from the property to the sanitary sewer cannot be
made with an individual line (i.e., 4" inch line), then a private sewage
disposal system may be installed.
f) Acceptable
Pipe Materials
1) All piping located more than 5 feet from the building
foundation, used to convey wastewater to a private sewage disposal system,
shall be considered a part of the private sewage disposal system and shall be
watertight. This piping shall be ductile iron, vitrified clay or plastic pipe.
Only vitrified clay or plastic pipe shall be used from the septic tank and
after the distribution box (where used). Perforated pipe or open-jointed tile
shall be used only as provided in this Part.
2) Use of plastic pipe and fittings shall comply with the uses
designated in Appendix A, Illustration C.
3) Piping used to carry domestic sewage under areas such as
driveways, roads or parking areas shall be Schedule 40 equivalent or greater.
g) Pipe Size and Slope
1) All solid pipes carrying domestic sewage by gravity flow shall
have a nominal diameter of at least 4 inches and a minimum slope of 12 inches
per 100 feet.
2) Solid header lines used for equal distribution shall be level.
3) Solid
pipes carrying treated effluent by gravity shall have a nominal diameter of 4
inches and a minimum slope to ensure designed flow within the system.
4) An
alternative design for pipe sizing and slope may be proposed by an Illinois
licensed Professional Engineer.
h) Prohibited Discharges. There shall be no discharge of raw or
improperly treated domestic sewage to the surface of the ground or to farm
tiles, streams, rivers, ponds, lakes or other collectors of water. Improperly
treated domestic sewage is sewage that does not meet the effluent requirements
of Section 905.110(d) or sewage that comes directly from a septic tank or
building sewer. Domestic sewage or effluent from any private sewage disposal
system or component shall not be discharged into any well, cistern or basement
or into any underground mine, cave, sinkhole or tunnel.
i) Pipe Length. Building sewers in excess of 50 feet in length that
carry wastewater from the buildings served to the septic tank, distribution box
or aeration treatment plant shall be provided with at least one clean-out every
50 feet that terminates at grade.
j) Private Sewage Disposal System Development. The following
factors shall govern the development of a private sewage disposal system:
1) Drainage. A private sewage disposal system shall not be
located in areas where surface water will accumulate. The flow of surface
water over the private sewage system shall be minimized, for example, by the
use of dikes, embankments, ditches or flow diverters.
2) Distances. The location of the various components of a
private sewage disposal system shall comply with Appendix A, Illustration D.
3) Area Reserved for Sewage Disposal. The area to be used for a
private sewage disposal system shall be selected and maintained so that it is
free from encroachment by driveways, accessory buildings, swimming pools,
parking areas, buried lawn sprinkling systems and underground utility services,
patios, slabs, additions to the original structure, or any other structure that
limits free access to the system for maintenance, servicing or proper
operation. The property owner and private sewage disposal system installation
contractor shall ensure that the designated area for the subsurface seepage
system shall be secured prior to construction or modifications to the site and
shall be protected throughout the site development or construction process.
The property owner and private sewage disposal system installation contractor
shall secure this area to deter any traffic, compaction of the soil, removal or
addition of soil, or encroachment on the area of the proposed subsurface
seepage system. Temporary fencing, posts and roping or a similar restrictive
barrier may be used to restrict access. The area of the proposed private sewage disposal system shall
be protected throughout the site development or construction process.
4) Creviced Limestone Formations. A subsurface seepage system
shall not be constructed in an area where there is less than 4 feet of soil
between the lowest point in a subsurface seepage system and the top of a
creviced limestone formation. In areas where creviced limestone is known to
occur, a soil boring to a depth of at least 4 feet below the bottom of the
subsurface seepage system shall be made to verify that creviced limestone is
not present.
k) Electrical Devices. All electrical devices shall be wired in
accordance with the National Electrical Code or a municipal, county or local
electrical code, whichever is more stringent.
1) Any
component of a private sewage disposal system that is electrically activated
shall be provided with a visible and audible warning device.
2) Alarms
installed after January 1, 2014 shall be located outside of the building
served. The power supply for the alarm shall be on a dedicated circuit. The
design of the alarm shall meet the requirements specified in Section 5.8 of NSF
International/ANSI Standard 40. The alarm shall be housed in a weatherproof
box.
3) Electrical
devices installed after January 1, 2014 shall be provided with an electrical
disconnect that is located within sight of, and not more than 50 feet away from,
the device.
l) Variances. If conditions exist at a proposed installation that
make compliance with the requirements of this Part impractical or impossible, a
variance may be requested by submitting to the Illinois Department of Public
Health, Division of Environmental Health, or appropriate local authority a
written proposal that is to be used in lieu of compliance with this Part. The
written request shall include pertinent data to support the proposal, such as
soil conditions, water table elevations, drainage patterns and distances to
water supplies. The capability of the system to comply with the intent of this
Part will be the basis for approval or denial of the variances. The Department
or local authority will notify the applicant in writing of its decision to
either grant or deny the variance. Construction shall not begin before a
variance is requested and approved.
m) Experimental Use Permits. If a private sewage disposal system
or component is of a new or innovative type and does not comply with the
requirements of this Part, the homeowner or private sewage contractor or
manufacturer may request an experimental use permit. A request shall be
submitted in writing to the Illinois Department of Public Health, Division of
Environmental Health, and construction or installation shall not begin before a
permit is requested and approved. The request shall meet the following
requirements:
1) The request shall specify the type of proposed system or
component to be used and shall be accompanied by plans, specifications and
engineering data to support the system's compliance with the general
requirements under Section 905.20 and with the effluent criteria under Section
905.110 for surface discharges, if applicable.
2) Information (such as topographical or plat maps) regarding the
location of each installation shall be provided to the Department.
3) The homeowner, private sewage disposal system installation
contractor or manufacturer shall provide the Department with proof that sufficient
area is available for installation of an approved system if the experimental
system fails.
4) The homeowner, private sewage disposal system installation
contractor or manufacturer shall guarantee in writing that the experimental
system will be replaced with an approved system if the experimental system
fails to perform in accordance with any of the Sections of this Part, or with
criteria established as a condition of approval of the system.
5) The private sewage disposal system installation contractor or
the manufacturer shall notify the homeowner, or the person obtaining the
experimental use permit, of the guarantee required by subsection (m)(4), and of
the minimum standards of this Part that shall be met, as determined through the
process described in subsections (n)(3) and (4) for developing criteria to be
used in the evaluation of the experimental system.
6) Upon receipt of the information required by this subsection
(m), the Department will review the experimental system to determine whether
the proposed system is equal to or more stringent than applicable Sections in
this Part, and will notify the applicant, in writing, of its decision to approve
or deny the request for an experimental use permit. If the request is approved,
the Department will issue an Experimental Use Permit for each installation, up
to 30 installations in the State.
n) Experimental
Use Evaluation
1) A minimum of 10 experimental installations shall be evaluated
before an unconditional approval will be granted.
2) The experimental permit shall be valid for a period of up to 2
years, during which time the Department will evaluate the performance of the
experimental system. At the end of the 2 year evaluation period, the
Department will determine whether the system will be approved.
3) The Department, in consultation with the experimental use
permit applicant, will develop a test method for the experimental system, which
will include the following information:
A) purpose of the test;
B) length of the test;
C) analytical methods to be used;
D) wastewater characteristics;
E) loading requirements; and
F) test criteria, including installation procedures, operating
procedures, site evaluation criteria, control system criteria, start-up
procedures, sampling procedures, and observation procedures.
4) The Department, in consultation with the permit applicant, will
develop performance requirements that will detail the criteria to be used to
evaluate the product to determine its ability to become an approved private
sewage disposal system. The performance requirements shall include, but are
not limited to, ponding in subsurface systems indicating that failure of the
system is imminent.
5) The experimental system will be deemed unacceptable:
A) when sewage erupts from the ground;
B) when effluent from the system does not meet the criteria of
Section 905.110(d); or
C) when the experimental system does not comply with the
requirements of subsections (n)(3) and (4).
6) If the experimental system is acceptable, it shall become an
approved private sewage system. If the experimental system is unacceptable, it
shall not be approved for use as a private sewage disposal system and shall be
replaced with an approved private sewage disposal system. The Department shall
notify the applicant, in writing, of its determination.
7) A homeowner, private sewage contractor or manufacturer whose
experimental system has been denied approval for use as a private sewage
disposal system may request a hearing to appeal the Department's determination.
The request shall be submitted in writing within 10 days after receipt of the
Department's determination. The Department's Practice and Procedure in
Administrative Hearings rules shall apply to all proceedings conducted under
this Section.
8) When the Department has designated an experimental system as
an approved private sewage disposal system, the Department will amend this Part
to include design, construction, operation and maintenance criteria for the
newly approved system and will add the system to its list of approved systems.
o) Garbage Grinders. When garbage grinders are used in
residential property, solids shall be retained by one of the following methods:
1) A solids retention tank constructed in accordance with Section
905.40 shall be placed between the wastewater source and the septic tank to
intercept solids from the garbage grinder. This tank shall receive waste from
the garbage grinders or the kitchen wastes only. No other fixtures shall
discharge into this tank. The solids retention tank shall be at least 50% in
liquid volume of the septic tank sized for the waste from the rest of the
property; however, the minimum size tank to be used shall be 500 gallons.
2) A septic tank receiving all flows from the property sized in
accordance with Appendix A, Illustration F.
p) Whenever an existing private sewage disposal system is
repaired or replaced, that portion of the system being repaired or replaced
shall comply with all of the requirements of this Part.
q) Maintenance of Private
Sewage Disposal Systems
1) After
January 1, 2014, as a condition of applying for an installation approval
required by Section 905.190, the signature by the property owners on the
installation approval submission/construction permit for any private sewage
disposal system being installed, repaired or renovated serves as written
acknowledgement that the property owners are aware of and accept the
responsibility to service and maintain the private sewage disposal system in
accordance with the Act and this Part.
2) The
property owner or the private sewage disposal system owner shall maintain all
maintenance records on forms provided or approved by the Department and make
records available upon request by the Department or Local Authority. These
records shall be transferred from owner to owner. Records shall be kept for
the life of the system.
3) After
January 1, 2014, private sewage disposal systems installed and permitted under
Section 905.190 are required to be maintained and serviced to ensure proper
operation in accordance with the following:
A) Septic
tank to a subsurface seepage system or septic tank followed by a sand filter
discharging to a subsurface seepage system.
i) Private
sewage disposal system septic tanks serving residential properties shall be
evaluated prior to or within 3 years after the date of installation of the
system. The system may be evaluated by the homeowner, a Private Sewage
Disposal System Installation Contractor, a licensed Environmental Health
Practitioner, an Illinois licensed Professional Engineer, a representative of
the Department, or an agent of the Department or local health department. The
evaluation shall determine whether the tanks and all of the compartments of the
private sewage disposal system have layers of scum and settled solids greater
than 33% of the liquid capacity of the tank. If the layers of scum and settled
solids are greater than 33%, the tanks and compartments shall be pumped out and
maintenance shall be performed. After the first evaluation, the system shall
be evaluated a minimum of once every 5 years. Depending on the system's use,
the tanks and compartments may need to be evaluated and pumped more frequently.
ii) Private
sewage disposal system septic tanks serving non-residential property shall be
evaluated within 3 years after the date of installation of the system. The
system may be evaluated by a Private Sewage Disposal System Installation
Contractor, a licensed Environmental Health Practitioner, an Illinois licensed
Professional Engineer, a representative of the Department, or an agent of the
Department or local health department. The evaluation shall determine whether
the tanks and all of the compartments of the private sewage disposal system
have layers of scum and settled solids greater than 33% of the liquid capacity
of the tank. If the layers of scum and settled solids are greater than 33%,
the tanks and compartments shall be pumped out and maintenance shall be
performed. After the first evaluation, the system shall be evaluated at
minimum once every 3 years. Depending on the system's use, the tanks and
compartments may need to be evaluated and pumped more frequently.
B) An
aerobic treatment unit (ATU) requires evaluation and maintenance at least once
every 6 months. The system may be evaluated by a Private Sewage Disposal System
Installation Contractor, a licensed Environmental Health Practitioner, an
Illinois licensed Professional Engineer, a representative of the Department, or
an agent of the Department or local health department. The homeowner of an ATU
may conduct the inspection and maintenance as defined within the Act, but the
inspection and maintenance shall be performed per the manufacturer's requirements
to assure proper operation. If the required inspections and maintenance are
not performed, the system is in violation of the Act and this Part.
C) Sand
filters and waste stabilization ponds with surface discharges require an
evaluation to determine whether the tanks and all of the compartments of the
private sewage disposal system have layers of scum and settled solids greater
than 33% of the liquid capacity of the tank. If the layers of scum and settled
solids are greater than 33%, the tanks and compartments shall be pumped out and
maintenance shall be performed. The system shall be evaluated a minimum of
once every year. The system may be evaluated by a Private Sewage Disposal
System Installation Contractor, a licensed Environmental Health Practitioner,
an Illinois licensed Professional Engineer, a representative of the Department,
or an agent of the Department or local health department. Depending on the
system's use, the tanks and compartments may need to be evaluated and pumped
more frequently. The homeowner of a sand filter or waste stabilization pond
may conduct the inspection and maintenance as defined within the Act, but the
inspection and maintenance shall be performed per the requirements of this Part
to assure proper operation.
D) All
other private sewage disposal systems that are not listed in subsection
(q)(3)(A) through (C) shall be maintained in accordance with the manufacturer's
specifications or based on a maintenance interval approved by the Department.
E) The
owner of a private sewage disposal system may submit an alternative maintenance
interval to the Department for approval. The Department will evaluate the
alternative interval on a case-by-case basis. The approval is not transferable
from owner to owner. Change in ownership or use of the private sewage disposal
system will void the approval.
4) A
failure to properly operate, maintain and have routine service conducted on a
private sewage disposal system is a violation of the Act and this Part.
r) Installation
Contractor On Site. A licensed Private Sewage Disposal System Installation
Contractor shall be present at the site during construction, installation,
repair, modification or maintenance of a private sewage disposal system.
Cleaning, pumping, disposing and hauling of waste from a private sewage
disposal system shall be done by a licensed Private Sewage Disposal System
Pumping Contractor. A person who owns and occupies a single family dwelling
and who constructs, installs, maintains, services or cleans the private sewage
disposal system which serves his/her single family residence shall not be
required to be licensed under this Section; however, such person shall
comply with all other provisions of the Act and this Part.
(Section 4 of the Act)
s) Construction
and Excavation. Any construction or excavation performed by any individual
other than the person who owns and occupies a single family dwelling shall be
performed by a licensed Private Sewage Disposal System Installation Contractor
or an individual under the direct supervision of a licensed Private Sewage
Disposal Installation Contractor.
t) Alternative
Technology. The Department may issue approval for a private sewage disposal
system or a system component that has been approved by another governmental
body or an approved certification agency, based upon, but not limited to, the
review of the following information: submittals to other governmental bodies;
analysis from third party testing; testing results from other governmental
bodies; and historical use within the jurisdiction of other governmental
bodies.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.30 APPROVED PRIVATE SEWAGE DISPOSAL SYSTEMS
Section 905.30 Approved
Private Sewage Disposal Systems
a) The following systems are approved for private sewage disposal
when designed, constructed, operated, and maintained in accordance with this Part:
1) Septic tank, Imhoff tank or aerobic treatment plants followed
by:
A) Subsurface seepage field;
B) Seepage bed;
C) Sand filter (buried or re-circulating);
D) Waste stabilization pond;
E) 8 inch or 10 inch gravelless seepage system;
F) Chamber system;
G) Peat filter system; or
H) Subsurface
drip irrigation system.
2) Aerobic treatment plant and NSF International/ANSI Standard 40
wastewater treatment systems discharging to supplementary treatment or to the
surface, as provided in Sections 905.100 and 905.110.
3) Privies, chemical toilets, re-circulating toilets, incinerator
toilets or compost toilets.
4) Holding tanks installed in accordance with Section 905.140.
5) Any other system for which a variance in accordance with
Section 905.20(l) has been issued or for which an experimental permit in
accordance with Section 905.20(m) has been issued.
6) Illinois raised filter bed preceded by a batch treatment
aeration system.
7) Technologies
approved by the Department under Section 905.20(t).
b) The Department will maintain a list of alternative components
and technologies that have been approved under the Act. This list will be
available at http://www.idph.state.il.us/envhealth/prisewage.htm.
c) All other systems or
components not listed undert this Part are not approved.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.40 SEPTIC TANKS
Section 905.40 Septic Tanks
a) Septic Tank Approval. Manufacturers of prefabricated septic
tanks shall submit a set of plans for each size and configuration of septic
tank to the Department for approval. Plans shall be drawn to scale and show
all dimensions, baffles, tees, cleanouts and material specifications. The
Department will provide a written approval for each size tank when the plans
are found to conform to the requirements of this Part.
1) The Department will issue an approval number to each
manufacturer for each series of approved septic tanks and will maintain a
listing of the approved manufacturers and approved septic tank series.
2) No prefabricated septic tank shall be sold, offered for sale,
or installed other than those which have been approved by the Department. The
tank shall bear the manufacturer's approval number and the liquid capacity of
the tank, in gallons, prominently displayed on the outside end wall of the tank
above, or next to, the outlet pipe so that this information is readily visible
after installation and prior to covering. The Illinois Department of Public
Health approval number shall not be used on any tank other than the septic tank
for which it is has been issued.
3) All persons who manufacture, sell, offer for sale or deliver
septic tanks or aerobic treatment plants in or into the State of Illinois shall
record the following information about each septic tank or aerobic treatment
plant sold or delivered. This information shall be available for inspection by
the Department or local authority upon request.
A) Name of purchaser or property owner (if different);
B) Location of delivery (county and address, legal description or
driving directions);
C) Date of sale and delivery; and
D) Size of septic tank or model of aerobic unit.
b) Septic Tank Construction. Septic tanks shall be designed and
constructed in accordance with the following: (Appendix A, Illustration E is
an illustration of these requirements.)
1) A septic tank shall be watertight and constructed of sound and
durable materials not subject to excessive corrosion, decay, frost damage or
cracking due to settling or backfilling.
2) Engineering Specifications
A) The tank shall support a top-dead load of not less than 500
pounds per square foot, and concrete tanks shall have a minimum 28-day
compressive strength of 3000 pounds per square inch (psi).
B) Tanks shall be designed and constructed so that they will not
collapse or rupture when subjected to anticipated earth and hydrostatic
pressures when the tanks are either full or empty. The manufacturer, design
engineer or structural engineer shall certify in writing to the Department that
the tank is designed and constructed to meet the load requirements of this
Part. If additional loading is anticipated, the tank shall be strengthened to
accommodate the additional loading.
3) Materials. Septic tanks shall be constructed of any of the
following approved materials:
A) Poured-in-place reinforced concrete.
B) Precast reinforced concrete.
C) Concrete block, provided that the core is filled with concrete
and reinforcing rods are inserted in the core prior to pouring.
D) Reinforced plastic.
E) Reinforced fiberglass.
F) Thermoplastic.
4) Depth. The minimum liquid depth of the tank shall be 42
inches, and the maximum liquid depth shall be 72 inches.
5) Inlet and Outlet Connections
A) The invert elevation of the inlet shall be at least 2 inches
above the liquid level in the tank.
B) The inlet and outlet openings of the septic tank shall be
provided with cast-in watertight openings.
6) Baffles. Septic tank baffles shall meet the following
requirements:
A) Inlet baffles shall be provided and shall extend at least 6
inches below the surface of the liquid.
B) Inlet baffles shall be located no farther than 12 inches from
the inlet orifice.
C) Inlet and outlet baffles shall have a clearance of at least one
inch but not greater than 3 inches of free space between the underside of the
tank lid and the baffles.
D) Outlet baffles shall be provided and shall extend to a depth of
40% of the liquid depth.
E) Outlet baffles shall be located no farther than 6 inches from
the outlet end wall.
F) Slip-in baffles shall extend the full width of the tank.
G) The sides of "V" or semi-circular type baffles shall
fit tightly against the end wall of the tank.
H) Venting shall be provided through all baffles and a free vent
area equal to the cross-sectional area of the building shall be provided.
I) Submerged pipe T-branches or sanitary tees may be used at the
inlets and outlets in lieu of baffles, provided that all of the above-stated
distances and depths are maintained.
J) Submerged pipe T-branches or sanitary tees used as inlet
baffles shall be 6 inches in diameter or larger. Outlet baffles shall be 4
inches in diameter.
K) Submerged pipe T-branches or sanitary tees shall meet the
requirements of ASTM 2661, ASTM 2665 or ASTM 3034, or ASTM 2751, provided that the
pipe does not have an SDR (Standard Dimension Ratio) number greater than 35.
L) When submerged pipe T-branches or sanitary tees are used as
baffles, it shall be the responsibility of the septic tank manufacturer to
assure proper location of components during initial installation.
M) When a single compartment septic tank is manufactured or used, a
gas deflection baffle shall be provided below the outlet baffle of the tank
configured to deflect rising gas bubbles away from the outlet structure and
toward the interior of the tank. This baffle shall be constructed of a durable
material not subject to corrosion or decay. (Appendix A, Illustration E,
Exhibit C is an illustration.) An NSF International/ANSI Standard 46, Section
10 septic tank filter may be used in lieu of the gas deflector baffle. The
septic tank filter baffle shall be installed so that it is extended or
suspended to a depth equal to 40% of the liquid level of the tank. The tank
access over the filter shall be provided with an access riser that extends to 3 inches above the
ground surface or greater.
7) Access. Access shall be provided over the inlet and outlet of
the tank to facilitate inspection and cleaning. The manhole or access opening
shall have a fitted lid with a minimum dimension of 12 inches (width or
diameter). Risers shall be watertight and constructed of a durable material.
If the top of the tank is greater than 12 inches below the ground surface, a
riser with a minimum dimension of 12 inches (width or diameter) shall be
provided to bring access over the inlet and outlet to within 12 inches of the
ground surface. The joint between the septic tank and the risers shall be
watertight. If a 2-compartment tank is used, and the tank has an opening over
the wall between the compartments, the center opening shall have access
provided within 12 inches of the ground surface.
c) Capacity
1) Septic tanks for individual residences shall be sized in
accordance with Appendix A, Illustration F. Septic tanks for any
establishment other than residential property shall be sized in accordance with
the estimated flow provided in Appendix A, Illustration A and as provided in
subsection (c)(2).
2) The volume below the liquid level for flows up to 500 gallons
per day shall be at least 750 gallons. For flows greater than 500 gallons per
day, the volume shall be equal to at least 1½ the estimated daily sewage
flow. When the total flow exceeds 1,350 gallons per day, 2 or more tanks in
series, or a multi-compartment tank, shall be installed.
d) Multiple Tanks or Compartments. When multiple compartment
septic tanks or multiple septic tanks in series are used, the capacity of the
first compartment or tank shall be ½ to ⅔ of the total required
capacity. Two-compartment tanks shall also comply with the following:
1) The wall separating the first and second compartments shall be
tight-fitting and designed to handle the differential in pressure if one side
is pumped.
2) The wall separating the compartments shall extend to within 3
inches of the tank lid and shall have a free vent area equal to the
cross-sectional area of the house sewer.
3) The center of the opening between compartments shall be in
line with the center of the inlet and outlet openings.
4) The depth to the invert of the opening between compartments
shall be 40% of the liquid depth.
5) A gas deflection baffle shall be provided below the outlet
baffle of the tank configured to deflect rising gas bubbles away from the outlet
structure and toward the interior of the tank. This baffle shall be
constructed of a durable material that is not subject to corrosion or decay. An
NSF International/ANSI Standard 46, Section 10 septic tank filter may be used
in lieu of the gas deflector baffle. The septic tank filter baffle shall be
installed so that it is extended or suspended to a depth equal to 40% of the
liquid level of the tank. The tank access over the filter shall be provided
with an access riser that extends to 3 inches or more above the ground surface.
6) For a 2-compartment tank, openings with a minimum dimension of
18 inches shall be located over the inlet and outlet of the tank or 12-inch
openings as follows:
A) One located over the inlet;
B) One over the outlet; and
C) One centered over the compartment wall.
e) Septic
Tank Installation
1) The septic tank shall be set level and backfilled to prevent
floatation or drifting of the tank. Level shall mean plus or minus ½ inch in
any direction (length or width or diameter of the tank).
2) If the inlet, outlet or access openings are to be set at or
below the seasonal high water table, all openings in the tank shall be made
watertight using mastic, tar, silicone caulk, etc.
3) There shall be no connections, such as joints, splices or
fittings, within the area of overdig around the septic tank.
f) Abandoned Treatment Units. Septic tanks, cesspools, pit
privies, aerobic treatment plants and seepage pits that are no longer in use
shall be completely pumped. The floor and walls shall be cracked or crumbled so
that the tank will not hold water, and the tank shall be filled with sand or
soil. If the tank is removed from the ground, the excavation shall be filled
with soil.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.50 DISTRIBUTION BOXES
Section 905.50 Distribution
Boxes
a) General. Distribution boxes may be installed between a septic
tank, aerobic treatment plant, NSF International/ANSI Standard 40 wastewater
treatment system, and a subsurface seepage system or buried sand filter. If a
distribution box is used, it shall be installed level on unexcavated earth, and
shall provide equal distribution of flow to the subsequent disposal system.
b) Connecting Pipe. The pipe connecting the pre-treatment or
primary treatment component to the distribution box and the pipe connecting the
distribution box to the disposal system shall be watertight.
c) Construction. Distribution boxes shall be constructed of a
durable, watertight, non-corrosive material. They shall be designed to
accommodate the necessary distribution lines.
d) Access. Distribution boxes shall be provided with an opening that
will serve as a ready access for inspection, cleaning and general maintenance.
e) There shall be no connection such as joints, splices or
fittings within the area of the overdig around the distribution box.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.55 SUBSURFACE SEEPAGE SYSTEM DESIGN REQUIREMENTS
Section 905.55 Subsurface
Seepage System Design Requirements
After January 1, 2014, when
designing a subsurface seepage system, the absorption capacity of the soil
shall be determined by subsection (a). After January 1, 2014, subsection (b)
shall not be used to determine design requirements for a subsurface system.
a) Soil Investigation
1) Soil investigations shall be conducted in the following
manner:
A) Determination of soil characteristics on sites proposed for
development with private sewage disposal systems shall be based on soil boring
data collected by a soil classifier or an Illinois licensed Professional
Engineer.
B) There shall be a minimum of 3 borings per soil absorption
system site. The soil borings shall be at least 50 feet apart, and the
proposed subsurface seepage system shall be located within the area where the
soil borings were located. More soil borings may be necessary for accurate and
appropriate evaluation of a site where there is some concern about the
consistency of the soil materials. One of the borings shall be made at the
lowest elevation of the proposed absorption field area. Borings shall extend a
minimum of 60 inches below the natural ground surface. An observation pit
shall be used in gravelly materials.
C) Observation and determination of soil characteristics may also be
determined from a pit dug by a backhoe or other excavating equipment. The
Department or local authority may require soil pits (backhoe excavation) in
cases where ground is frozen, where the soil materials are considerably varied
in texture, where there has been previous or current fill material or cutting
of soils, or where gravelly soils are encountered. Soil pits shall be prepared
at the perimeter of the expected soil absorption area to minimize damage to
natural soil structure. Soil pits shall extend a minimum of 60 inches below
the natural ground surface.
D) Site characteristics to be described include zones of seasonal
and permanent water saturation, United States Department of Agriculture (USDA)
soil textural changes; USDA soil structural features for each horizon, slope,
compaction and depth; soil coloration; consistence; coatings; depth of limiting
layer; depth of soil mottling; internal drainage classification; permeability
range; and other limiting soil characteristics that may reduce permeability. The
following reference materials shall be used as a guide for describing and
classifying soil: Field Book for Describing and Sampling Soils, Soil Taxonomy,
and Soil Survey Manual.
2) The following persons are qualified to conduct soil
investigations:
A) any person who meets the definition of soil classifier in
Section 905.10;
B) an Illinois licensed Professional Engineer;
C) an employee of a local health department who has 3 years of
experience in designing or approving private sewage disposal systems using soil
classification information and 6 semester hours of soils-related coursework;
D) an employee of a local health department with 5 years of experience
reviewing the design and approving private sewage disposal systems using soil
classification information under the direct supervision of those persons listed
in subsection (a)(2)(A), (B) or (C).
3) If conflicting soils investigation information is provided
about a given site, a third Soil Classifier may be requested to provide additional
information or help to resolve the conflict. A National Resources Conservation
Service (NRCS) Soil Scientist who is also a Soil Classifier may be contacted
for technical information or interpretation.
b) Percolation Tests
1) Performance of Percolation Tests. At least 3 separate
percolation tests, a minimum of 50 feet apart, shall be performed at the site
of each proposed subsurface seepage system.
2) Procedure for Performing Percolation Tests. Percolation tests
shall be performed in accordance with the procedure outlined in Appendix A,
Illustration G. Alternate procedures for performing percolation tests may be
submitted to the Department for review. If determined to be as stringent as
that described in Appendix A, Illustration G, the alternate procedure will be
approved.
3) The Department or its agent may choose not to accept
percolation data results and may require a soil investigation if soils
information, permits for private sewage disposal systems in proximity to the
proposed site, direct observation or other information shows conditions that
will have an impact on the design, construction, installation, modification or
performance of the private sewage disposal system.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.60 SUBSURFACE SEEPAGE SYSTEM CONSTRUCTION REQUIREMENTS
Section 905.60 Subsurface
Seepage System Construction Requirements
a) Seepage Field Requirements – Gravel, Gravelless and Chamber Systems.
Subsurface seepage fields shall be designed and constructed in accordance with
Appendix A, Illustrations H, I and J and the following:
1) All subsurface seepage systems using soils information for
sizing shall use the soil suitability table in Appendix A, Illustration M to
determine the size requirements of the subsurface seepage system. The least
permeable soil layer between the top of the gravel or gravelless pipe or
chamber system and 2 feet below the bottom of the trench shall be used to
determine the size of the subsurface seepage system. For mound or at-grade
systems, the least permeable soil layer in the upper 2 feet of the soil shall
be used to determine system size.
2) The bottom of the subsurface seepage field, each trench and
its distribution line shall be level. Level for this Part shall mean plus or
minus ½ inch in any direction over the entire area of the subsurface seepage
system.
3) There shall be a minimum of 6 inches and a maximum of 24
inches of earth backfill over the bedding materials, gravelless pipe or chamber
system.
4) There shall be a minimum of 5 feet of undisturbed earth
between the septic tank and the nearest trench.
5) If precipitation falls onto the excavation and evidence of
soil washing into the excavation of the subsurface seepage system exists, the
damaged portion of the seepage system shall be reconstructed to comply with
this Section.
6) The top of the gravel, gravelless pipe, or chamber system in
the subsurface seepage field shall be at least one inch below the invert of the
outlet pipe from the septic tank or distribution box in a gravity flow system.
7) Site Evaluation for Subsurface Seepage Systems. Subsurface
seepage systems receiving septic tank effluent shall have at least 2 feet of
vertical separation distance between the bottom of the subsurface seepage
system and the top of the limiting layer. For soils in Design Group I-VI or
with a loading rate of greater than 0.62 gallons per day per square foot, there
shall be at least a vertical separation distance of 3 feet between the bottom
of the subsurface seepage system and the top of the limiting layer. When the
limiting layer is the estimated seasonal high water table, artificial drains,
which are designed to lower the estimated seasonal high water table, may be
installed to achieve the specified vertical separation distances.
8) Sizing of a Seepage System in Fill Soil
A) The least permeable soil layer between the top of the gravel,
gravelless pipe or chamber system and 2 feet below the bottom of the trench
shall be used to determine the size of the subsurface seepage system.
B) The use of fill for installing subsurface seepage systems shall
not be approved for lots platted after March 15, 1996.
C) Fill soils may be used to cover a private sewage disposal
system, provided that no part of the system is located in the fill and the fill
material is at least equal to or better than the original soil or meets the
requirements in subsection (a)(9).
9) Soil Criteria for Use of Fill in Subsurface Seepage Systems
A) Soils to be used for fill shall be identified by a soil
classifier or licensed Professional Engineer and a report submitted to the
Department or local authority. The report shall contain specific information
on the fill soil, including location, depth, permeability, and texture. Soils
that can be used as fill are those identified in Appendix A, Illustration M as
2A, 2B, 2K, 3A, 3B, 3C, 3K, 3L, 4B, 4D and 4K (Design Group II, III and IV).
B) In addition to the requirements in subsection (a)(9)(A), fill
soil shall not contain extraneous material such as tires, concrete, brick,
reinforcing bar, demolition material, etc.
C) All of the following conditions shall be met for a subsurface
seepage system to be installed in fill.
i) Satisfactory original soil shall be at least 3 feet above
bedrock.
ii) A maximum of 2 feet of fill soil shall be used.
iii) Fill shall not be placed on original soil with a slope
greater than 10%.
iv) The fill shall be placed at the site so that a minimum of compaction
occurs, and the fill shall be allowed to settle undisturbed for a period of at
least 12 months. Soils in Design Group II, when used for fill, shall not be
required to settle for a period of at least 12 months.
v) After the fill has been settled, a percolation test shall be
conducted in accordance with the procedure outlined in Appendix A, Illustration
G and a percolation rate of not greater than 270 minutes/6 inch fall or less
than 60 minutes/6 inch fall shall be achieved.
10) Site Preparation for Use of Fill Soil
A) Excess vegetation shall be cut and removed. The site shall be
plowed with a mold board plow 7 to 8 inches deep with the plowing done
perpendicular to the slope. It shall not be done with the furrow running up
and down the slope. Chisel plowing may be used in place of mold board.
Roto-tilling is prohibited.
B) Once the site is plowed, all traffic shall be kept off the
site. The fill material can be deposited on the top with a backhoe or pushed
on from the side, preferably the upslope side, using a track type tractor,
keeping 6 inches of fill beneath the tracks. At no time shall ruts be made in
the plowed area. The fill shall be placed immediately after site preparation
to avoid the possibility of precipitation falling on the plowed area.
C) Traffic on the downslope side of the fill area shall be minimal
to reduce compaction. All work shall be performed from the ends and upslope
side. Compaction of the natural soil downslope will reduce the lateral movement
of the effluent.
D) The fill shall not be placed on frozen ground or when the soil
is wet. Moisture content of the soil is very important when filling. Site
preparation shall not take place when the soil is too wet. To check moisture
content, a soil sample may be taken from the plow layer (7 to 8 inches) and rolled
between the palms of the hands. If the soil rolls into a ribbon, it is too wet
to prepare. If the soil crumbles, site preparation can then proceed.
b) Gravel
Seepage Field Requirements
1) Bedding Material. The bedding material shall be clean gravel
or clean stone that is free of mud, silt, or clay, with particle size ranging
from ¾ inch minimum to 4 inches maximum. The bedding material shall extend the
full width of the trench and to a depth of at least 6 inches below the bottom
of the distribution line. The bedding material shall extend at least 2 inches
above the top of the distribution line.
2) Distribution Lines. Distribution lines shall be constructed
of materials as approved in Section 905.20(f). The lines shall be perforated
or open-joint tile. Where open joint tile is used, the tile sections shall be
spaced not less than ¼ inch or more than ½ inch apart. Perforated piping with
the exception of 8-inch or 10-inch gravelless seepage beds shall have ½- to ¾-
inch diameter openings on 3- to 5-inch centers with a minimum of 2 rows. The
openings in the pipe shall be placed downward.
3) Separation Material. Bedding materials shall be covered by
straw, newspaper, untreated building paper, geotextile fabric or other
permeable or biodegradable material to support the backfill as the laying of
the distribution line proceeds. Tar paper, plastic, or other impervious
material shall not be used between the bedding material and the earth backfill.
4) The ends of a gravel seepage field shall be looped except in
serial distribution systems.
c) Gravelless Seepage Field Requirements. In addition to Section
905.20(f), 8-inch or 10-inch gravelless seepage systems shall comply with the
following specifications:
1) 8-inch and 10-inch inside diameter (I.D.) corrugated
polyethylene tubing shall meet the requirements of ASTM F667-06, Standard
Specification for Large Diameter Corrugated Polyethylene Tubing with the
following exceptions:
A) Perforations shall be uniformly spaced along the length of the
tubing as follows: 2 rows of holes ⅜ inch in diameter for 8-inch tubing
and ½ inch in diameter for 10-inch tubing, located 120° to 140° apart along the
bottom half of the tubing, each row 60° to 70° up from the bottom center line.
The perforations shall be staggered so that there is at least one hole in each
corrugation.
B) The pipe shall be marked to indicate the top of the pipe.
2) All gravelless drainfield pipe shall be encased at the point
of manufacture with a filter wrap having the following characteristics:
|
Physical Properties
|
Minimum
Value
|
|
|
|
|
Grab Strength, lbs. (ASTM
D4632)
|
|
|
Machine
Direction
|
19
|
|
Traverse
Direction
|
11
|
|
Burst strength, psi (ASTM
D3786-09)
|
26
|
|
Air Permeability, cfm per sq. ft. (ASTM D737-08)
|
500
|
|
|
|
|
Particle Size Distribution
(ASTM F662-86) Polyethylene particles in water and alcohol
solution, coulter counter analysis, single pass:
|
|
|
|
|
|
Particle
Size (Microns)
|
%
Retained
|
|
|
|
|
70
|
80
|
|
60
|
68
|
|
50
|
56
|
|
40
|
40
|
|
30
|
22
|
|
20
|
5
|
3) 8-inch or 10-inch gravelless seepage trenches shall comply
with the following Illustrations in Appendix A unless otherwise stated in this
Part:
A) Illustration D
B) Illustration H, Exhibit
B
C) Illustration I, Exhibit
C
D) Illustration I, Exhibit
D
E) Illustration J, Exhibit
C
F) Illustration J, Exhibit
D
G) Illustration K, Exhibits
E through H
H) Illustration M, Exhibit
A
4) Bedding Material. 8-inch and 10-inch gravelless seepage
systems or chamber systems may be bedded with material excavated to construct
the system. The backfill material shall not contain large clods of earth,
demolition material or other extraneous material.
5) Separation Material. No straw, newspaper or untreated building
paper shall be placed between the gravelless seepage system or chamber system and
the earth backfill.
6) Bending. 8-inch and 10-inch gravelless pipe shall not be bent
around corners on a radius of less than 5 feet. If a sharper radius is
required, a tee shall be used.
7) Gravelless seepage systems or chamber systems are not required
to be looped. Gravelless seepage systems or chamber systems that are not
looped shall be capped on the end.
d) Serial Distribution. Serial distribution shall be used in
areas where the slope of the terrain prohibits the installation of conventional
subsurface seepage systems. The following criteria shall be used in the design
and construction of a serial distribution system (see Appendix A, Illustration
K):
1) The bottom of each trench and its distribution line shall be
level.
2) There shall be a minimum of 6 inches of earth backfill over
the bedding material or chamber system or the gravelless pipe in the trenches.
3) The trench shall follow the ground surface contours so that
variation in trench depth will be minimized.
4) There shall be a minimum of 5 feet of undisturbed earth
between the septic tank and the nearest trench.
5) Adjacent trenches shall be connected with a relief line or a
drop box arranged so that each trench is completely filled to the full depth of
the gravel or gravelless pipe or chamber system before effluent flows to the
succeeding trench.
6) The relief lines connecting the trenches shall have watertight
joints and direct connections to the distribution lines in adjacent trenches.
Tight joint T's and 45° ells, or a drop box arrangement shall be used to
connect adjacent trenches.
7) Where the relief pipe trench connects with the higher trench,
it shall not be deeper than the top of the gravel or gravelless pipe or chamber
system in the higher trench. Relief lines shall rest on undisturbed earth and
the backfill shall be carefully tamped.
8) The invert of the first relief line shall be at least one inch
lower than the invert of the septic tank or aerobic treatment plant outlet.
(See Appendix A, Illustration K.)
9) All other construction features of the serial distribution
field shall comply with subsections (a) through (d).
e) Seepage Beds. The total bottom area of the seepage bed shall
be 1½ times the area specified in Appendix A, Illustration H, Exhibit A or
Illustration M, Exhibit A. Construction features shall conform to subsections
(a) and (b). Distribution lines shall be spaced no farther than 6 feet center
to center and shall be equally spaced. Lines adjacent to the bed sidewalls
shall be 18 inches from the bed sidewall. (See Appendix A, Illustration L.)
Seepage beds shall be constructed so that construction equipment does not drive
over the bottom of the bed.
f) Chamber Systems. Chamber systems shall be sized and installed
in accordance with the following:
1) Center-to-center spacing for chamber systems shall be in
compliance with Appendix A, Illustration I, Exhibit D.
2) Chamber systems shall be sized in accordance with Appendix A,
Illustration I, Exhibit E.
3) Chamber systems shall be designed to support all weight of
earth backfill without collapsing.
4) Chamber systems shall be designed to prevent earth backfill
from restricting flow within the chamber.
g) Subsurface
Drip Irrigation Systems. Subsurface drip irrigation systems shall be designed,
installed and maintained in accordance with the following:
1) The
drip irrigation system shall be designed, installed and operated as a
subsurface seepage system, and no portion of the drip irrigation system shall
have a surface discharge.
A) Pre-treatment
i) The
drip irrigation system shall be preceded by a pre-treatment process designed to
reduce the CBOD5 (carbonaceous 5-day biochemical oxygen demand) to a
maximum concentration of 25 mg/L and total suspended solids to a maximum
concentration of 30 mg/L. Drip irrigation systems shall not be installed
following a septic tank without any pre-treatment process capable of meeting
this Part's requirements.
ii) The
total flow from the property plus the backwash water from the drip irrigation
system shall not exceed the treatment capacity of the pre-treatment device.
iii) The
installation contractor, designer or homeowner, in consultation with the
manufacturer or the manufacturer's representative, shall assure that the
pre-treatment process meets the requirements of this Part.
B) Dosing
Tank
i) A
minimum liquid capacity of 1,000 gallons shall be provided below the inlet in
the dosing tank for a residential or non-residential site.
ii) For
homes larger than three bedrooms and non-residential systems with a daily
design flow greater than 667 gallons/day, a dosing tank with a minimum capacity
of 1.5 days design flow shall be provided.
C) Dosing
Pump
i) A high head/low volume
pump shall be used.
ii) The
pump shall be sized based upon the design flow rate of the drip irrigation
field, which shall be based on the number of emitters times the flow rate of
each emitter in gallons per minute.
iii) The
minimum head requirement of the pump shall be based upon the pressure
requirements for the operation and flushing of the drip field plus the total
static and friction head requirements of the supply lines and manifolds.
iv) Pump
specifications used for drip irrigation systems shall be provided by the pump
manufacturer.
v) The
installation contractor, designer or homeowner, in consultation with the
manufacturer or the manufacturer's representative, shall assure that the pump
used is in compliance with this Part.
D) Time
Dosing
i) Drip
irrigation systems shall be provided with a timer to activate the dosing pump
equally throughout a 24-hour period.
ii) Systems
shall be dosed a minimum of 6 equal doses over a 24-hour period and shall be
capable of delivering the maximum daily design flow to the drip irrigation
system in a 24-hour period. More frequent doses of 8 to 24 equal doses over a
24-hour period are recommended and shall be required in soils that have a
loading rate of less than 0.5 gallons/square foot/day.
iii) The
dosing frequency shall be such that the soil surrounding the drip irrigation
system does not become saturated.
iv) The
dosing specifications shall be provided by the drip irrigation manufacturer or
the manufacturer's representative in accordance with this Part.
E) Effluent
Filtration
i) Wastewater
effluent shall be filtered to the drip tubing manufacturer's specifications to
ensure proper operation of the distribution system.
ii) The
effluent filtration device shall be easily accessible for maintenance and
inspection.
F) Drip
Distribution System
i) The
drip distribution tubing manufacturer or the manufacturer's representative
shall provide written specifications for all components used in conjunction
with the drip irrigation system.
ii) The
manufacturer or the manufacturer's representative shall assure that all
manufacturer specifications for the drip irrigation system are in compliance
with this Part.
iii) The manufacturer
shall incorporate measures to prevent root intrusion into the emitters.
G) Drip
Emitters and Flow Rates
i) The
manufacturer of the drip tubing shall specify the number of drip emitters per
lineal foot and the flow rates through each emitter for different pressures.
ii) The
installation contractor or homeowner, in consultation with the manufacturer or
the manufacturer's representative, shall assure that the number of emitters to
be used in a drip irrigation system and the types of emitters used, flows and
flow rates into the soil comply with all of the manufacturer's specifications
and requirements and with this Part.
H) Absorption
Field Sizing
i) A
soil investigation shall be conducted in accordance with Section 905.55(a).
ii) The
soil loading rate (gallons/square foot/day) shall be based upon the least
permeable soil condition encountered within 24 inches below the proposed depth
of the drip irrigation tubing.
iii) The
system size shall be based upon Appendix A, Illustration M, Exhibits A and B.
I) Drip
Tubing Installation and Configuration
i) The
drip tubing shall be installed in the natural soil using installation equipment
and procedures specified by the manufacturer.
ii) Drip
irrigation tubing shall be installed at a depth of 6 inches to 12 inches below
the final graded surface.
iii) Drip
irrigation tubing shall be installed on a minimum of 2-foot centers.
iv) When
the drip irrigation piping is installed on slopes exceeding 20%, the spacing
between the drip irrigation piping shall be 3 feet or greater.
v) The
drip irrigation system shall be configured so that the length of the area of
the drip irrigation tubing system is at least two times its width. If this is
not possible, the drip irrigation tubing trench separation distance shall be
doubled.
vi) The
length of individual drip distribution tubing shall not exceed the manufacturer's
specifications and shall be installed at a uniform depth that follows the
contour of the site.
vii) The
drip irrigation tubing shall be installed a minimum of 12 inches above a
limiting layer.
J) Considerations
to Prevent Freezing
i) The
distribution and return manifolds shall be installed to drain back to the
pre-treatment tank after the field has been dosed.
ii) If
the elevations of the pre-treatment tank and dosing tank do not allow gravity
flow to the pre-treatment tank, the lines shall be installed to drain back to
the dosing tank.
iii) All
piping and components shall be installed to allow water to drain back to the
pre-treatment tank or dosing tank.
iv) To
allow for drain back, a check valve shall not be installed in the supply and
return lines.
K) Fill
Soils
Fill soils may be used in accordance
with subsection (a), except that the soil surface shall not be plowed.
L) Pressure
Requirements
i) The
manufacturer of the drip tubing shall specify the operating pressure
requirements of the drip irrigation system and provide the specifications of
any pressure regulator that may be required with the drip irrigation system.
ii) A
pressure gauge shall be provided or a method of connecting a pressure gauge
shall be provided on the distal end of the drip irrigation system to ensure
that field pressure can be checked during inspection, evaluation and
maintenance. The installation contractor or manufacturer shall ensure that the
irrigation system is operating at the required specifications.
M) Flush
Valves
i) An
automatic or manual flush valve shall be provided on the filter and drip
distribution system to allow for periodic flushing of both the drip distribution
system and the filter.
ii) The
drip distribution system manufacturer shall provide the specifications for the
flush valves that are acceptable to use with the system. The manufacturer
shall also provide specifications on the number of flush valves to be used and
their location, with specifications about how this is to be determined and the
backwash velocity required to clean the drip tubing piping.
iii) A
chemical injection port shall be installed to facilitate cleaning and flushing
the drip distribution system.
iv) Backwash
water shall be directed into the building sewer at the inlet end of the
pre-treatment system.
N) Air
Relief
i) The
manufacturer of the drip tubing shall specify the air relief requirements of
the drip distribution system and provide the specifications of any air relief
devices that may be required with the drip irrigation system to ensure that the
distribution piping can drain back to the dosing chamber when the system is not
pressurized.
ii) The
air relief device shall be installed at the highest point of the feed and
return manifolds.
O) Alarm
i) An
audible and visual alarm shall be provided to warn of a high water condition in
the dosing tank.
ii) The alarm shall be on
a separate dedicated circuit.
iii) The
alarm control device shall be a sealed float or diaphragm switch and shall be
located to activate 2 to 3 inches above the pump turn-on level or siphon
activation level.
iv) The
alarm shall be located outside of the structure served by the system and shall
be provided with an electrical disconnect that is located within sight of and
not more than 50 feet away from the device.
v) If an
alarm is being used by another component within the private sewage disposal
system, is compliant with subsections (g)(1)(O)(i) through (iv), and is able to
connect additional devices, it may be used without the need for an additional
alarm.
P) Access
i) Access
openings to the pre-treatment system, effluent filtration system, and dosing
tanks shall have a minimum inside dimension of 18 inches, shall be watertight
and shall extend to 3 inches or more above the ground surface.
ii) Access
openings to all other system components shall be large enough to allow easy
access from the ground surface.
Q) Maintenance
i) The
manufacturer shall provide specifications for the maintenance of all components
within the drip irrigation system.
ii) The
manufacturer shall provide a maintenance plan to ensure that maintenance is
conducted as required to achieve the proper function of the system.
2) The
installation contractor or manufacturer shall provide the following information
to the owner of the system:
A) An operation manual;
B) The maintenance plan for
the drip irrigation system;
C) The
manufacturer of the components and a description of the function of the
components;
D) The service contract
information;
E) A troubleshooting repair
guide;
F) A list of safety
concerns;
G) Manufacturer's
cut sheets for all electrical and mechanical components; and
H) An as-built drawing of
the system.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.70 BURIED SAND FILTERS
Section 905.70 Buried Sand
Filters
a) General. Buried sand filters may be used, provided that the
effluent is discharged in accordance with the requirements of Section 905.110.
b) Size. Buried sand filters shall be sized as follows:
1) Residential. The sand filter surface area for residential
property shall be 200 square feet per bedroom. Where a sand filter is used in
conjunction with an approved aerobic treatment plant, the surface area of the
sand filter may be reduced by 50 percent.
2) Non-Residential. All of the following shall be met when a
buried sand filter is to be installed on non-residential property.
A) The surface area of the sand filter shall be designed for one
square foot per gallon per day for waste with an influent Biochemical Oxygen
Demand (BOD) not to exceed 300 parts per million (ppm).
B) A sand filter with flows of 801 gallons or more per day shall
have the influent distributed into the sand filter by a dosing system designed
according to subsection (l). The sand filter shall be dosed 4 times per day
with equal flows not to exceed the design capacity of the filter.
c) A single individual sand filter shall be used to treat flows
from a wastewater source. Splitting flows prior to treatment or the use of
multiple sand filters shall be prohibited unless subsurface disposal of the
effluent is used. Where allowed, splitting of flows shall be done by pumps.
d) Minimum Size. The minimum size buried sand filter shall be
designed to treat at least 100 gallons of waste per day.
e) Sand Filter Media. The depth of filter media shall be a
minimum of 24 inches. The sand shall have an effective size of 0.5 to 2.0
millimeters, and a uniformity coefficient of less than 3.5. It shall be clean
and free of clay and silt.
f) Alternate Media. Other filter media may be used in a
subsurface filter provided that they meet the criteria of subsection (e) and comply
with the following requirements:
1) Are chemically and biologically inert;
2) Will support biological growth; and
3) Have a hardness equivalent to, or greater than, that of sand.
g) Filter Media Cover. The filter media shall be covered with a
minimum of 10 inches of clean coarse gravel or clean stone that is free of mud,
silt or clay, ranging in size from ¾ to 2½ inches in diameter. The gravel or
stone shall be covered with straw, untreated building paper, or other permeable
material prior to backfilling. A minimum of 12 inches of earth cover shall be
provided. (See Appendix A, Illustration N.)
h) Distribution and Collection Lines. The distribution and
collection lines shall conform to the requirements for distribution lines in
Section 905.60(b)(2). The distribution lines shall be level, shall be located
18 inches from sidewalls, and shall be spaced on 3-foot centers. There shall
be solid pipe to the filter media. The collection lines shall have a slope of
6 inches per 100 feet, and one collection line shall be provided for each 10
feet of width or fraction of 10 feet, and shall be equally spaced. The upper
end of the collection line shall be capped.
i) Bedding Material. The bedding material for the collection
lines shall be placed as shown in Appendix A, Illustration N, and shall be
clean gravel or clean stone that is free of mud, silt or clay. The coarse gravel
shall range in size from ¾ to 2½ inches in diameter, and pea gravel shall range
from ⅛ to ⅜ inches in diameter. A minimum of 2 inches of coarse
gravel shall be placed on the excavation before placement of the collection
lines.
j) Venting. A minimum of one vent shall be placed on the
downstream end of the distribution lines as shown in Appendix A, Illustration
N. These vents shall be placed as close as possible to the corners on the
downstream distribution lines. The vents shall extend above the ground surface
and be screened with ¼- inch mesh screen or equivalent.
k) Drainage. Surface drainage shall be directed away from the
filter. If conditions prohibit gravity drainage of the filter effluent, a
pumping chamber shall be installed. The chamber shall be constructed of a
watertight, non-corrosive material and shall be provided with a removable lid,
which will serve as an access for inspection, cleaning and general
maintenance. An access port or extension collar shall extend at least 6 inches
above the ground surface, and the access shall have a minimum dimension of 12
inches. The chamber shall have sufficient depth and the pump controls shall be
set in a manner to allow for complete drainage of the filter to eliminate any
ponding of effluent within the filter. (See Section 905.125, Pumps, Pumping/Dosing
Chambers, and Ancillary Equipment.)
l) Distribution of Effluent. Buried sand filters designed to
treat non-residential property with flows of 801 gallons or more per day shall
have the effluent distributed into the sand filter by pumping. The pumps,
pumping chamber and ancillary equipment shall comply with Section 905.125 and
the following:
1) Dosing Volume. The dosing volume is the amount of liquid
pumped or siphoned during each cycle minus the amount that drains back from the
sand filter after each dose.
2) Pump Selection. The pump shall be a submersible pump designed
for corrosive liquids.
3) Siphons. Siphons can be designed where elevation exists
between the sand filter and the siphon chamber. However, the siphon shall be
designed to deliver the same flow rate at the same head at the distribution
system as a pump system. The distribution system consisting of manifold and
laterals shall be designed so that it will drain after each siphon. This shall
be accomplished by placing the manifold above the laterals.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.80 RE-CIRCULATING SAND FILTER
Section 905.80 Re-circulating
Sand Filter
a) General. The re-circulating sand filter system (Appendix A,
Illustration O) consists of a septic tank, recirculation tank, open sand filter
and flow splitter. It may be used provided that the effluent is discharged in
accordance with the requirements of Section 905.110.
b) Septic Tank. The septic tank shall be sized and installed as
described in Section 905.40.
c) Re-circulation Tank. The re-circulation tank volume shall be
500 gallons, and the tank shall be equivalent in strength and materials to the
septic tank as provided in Section 905.40. No baffles are necessary. An
access manhole, as described in Section 905.40(b)(7), shall be provided for
pump maintenance or replacement.
d) Sand Filter. The sand filter shall be sized at one square
foot of filter surface for every 3 gallons per day of domestic sewage flow.
Appendix A, Illustration P has a size chart for residences based on numbers of
bedrooms. Unless otherwise stated in Appendix A, Illustration P, the sizes
shown are required. The filter media shall comply with requirements of Section
905.70(e) and (f) and shall be 30 inches in depth.
e) Bedding Material. The bedding material for the collection
lines shall be the same as that in a buried sand filter. The coarse gravel
shall be ¾ to 2½ inch diameter, and the pea gravel shall be from ⅛ to ⅜
inches diameter. A minimum of 2 inches of coarse gravel shall be placed on the
excavation prior to placement of collection lines.
f) Distribution and Collection Lines. The collection lines shall
be constructed of materials as approved in Section 905.20(f) and shall be 4
inches inside diameter perforated piping laid with perforations facing
downward. The distribution piping shall have an inside diameter of 1½ inches.
The perforated pipe shall have ½ to ¾ inch diameter openings on 3-inch to 5-inch
centers with 2 rows at 120° from each other. Distribution piping shall be
spaced on 3-foot centers and shall be located a minimum of 1½ feet from
sidewalls.
g) Pumps. The pump shall be a submersible pump designed for
corrosive liquids and shall have a capacity of 15 to 25 gallons per minute at
the 10-foot total dynamic head (TDH). The pump shall be controlled by a time
clock that can be set to activate the pump at one hour or longer intervals.
Pump shut-off shall be controlled by a low level float switch that allows the
entire contents of the re-circulation tank to be pumped during each pump
cycle. A high level float switch shall be provided that energizes a visible
and audible alarm to indicate pump failure or malfunction. (See Appendix A,
Illustration Q.)
h) Flow Splitter. The flow splitter shall be designed so that re-circulation
rates can be controlled between no re-circulation and a 5:1 re-circulation
ratio. An example of one type of splitter is shown in Appendix A, Illustration
O.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.90 WASTE STABILIZATION PONDS
Section 905.90 Waste
Stabilization Ponds
General. Waste stabilization
ponds may be used if designed and constructed in accordance with the following
criteria and provided that the effluent is discharged in accordance with the
requirements of Section 905.110 (see Appendix A, Illustration R as an illustration
of these requirements). A septic tank sized according to Appendix A,
Illustration F or an aerobic treatment plant shall precede a waste
stabilization pond.
a) Location: A waste stabilization pond shall be located as
distant as practical from residences, but in no case closer than the distances
shown in Appendix A, Illustration D, and in an area where trees will not
interfere with sunlight on the surface.
b) Dimensions. Ponds shall have a length not exceeding 3 times
the width.
c) Capacity. When domestic sewage from a septic tank is to be
discharged to the waste stabilization pond, the capacity of the pond shall be
equivalent to 60 times the average daily flow. When preceded by a Class II
aerobic treatment plant, the capacity of the pond shall be equivalent to 18
times the average daily flow.
d) Depth. The wastewater depth for a waste stabilization pond
shall be uniform and 3 feet to 5 feet.
e) Freeboard. A minimum freeboard of 2 feet shall be provided.
f) Embankments. Embankments shall be constructed of impermeable
materials and shall be compacted. Embankment slopes shall be in one to 2 (vertical
to horizontal) below the water line and one to 3 or flatter above the water
line. The top width of the embankment shall be a minimum of 2 feet.
Embankments shall be seeded or rip-rapped from the outside toe to the high
water line. Perennial, low growing, spreading grasses that withstand erosion
and can be kept mowed are most satisfactory for seeding of embankments.
g) Inlet. The inlet line shall be placed 12 to 24 inches above
the bottom of the pond at a point opposite the overflow structure and shall be
supported at no greater than 10-foot intervals along its length. It shall
discharge at least 10 feet from the water's edge. The inlet line shall be
sloped in accordance with Section 905.20(g).
h) Outlet. The outlet structure shall be designed to prevent the
discharge of floating solids. This shall be accomplished through baffling.
The baffle shall consist of a sanitary T or 90° elbow. If the 90° elbow is
used, a ¼ inch hole shall be drilled into the top of the elbow to provide an
air break. The outlet baffle shall extend 12 inches below the invert of the
overflow. The outlet baffle shall be 3 to 5 feet from the embankment.
i) Bottom. The bottom of the waste stabilization pond shall be
cleared and leveled to the required elevation and shall be lined with an
impermeable natural or man-made material. The pond shall be kept free of
vegetation that would grow to or above the water surface.
j) Drainage. All surface water shall be diverted away from the
waste stabilization pond.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.95 ILLINOIS RAISED FILTER BEDS
Section 905.95 Illinois
Raised Filter Beds
a) Illinois raised filter bed disposal systems shall have a
filter loading rate of 4 gallons per square foot per day for residential
systems of up to 1,500 GPD flows. Non-residential systems of any size or residential
systems in excess of 1,500 GPD shall use a filter loading rate of 2.5 gallons
per square foot per day. The system shall be designed in accordance with
Appendix A, Illustration X, Exhibits A through E.
b) An aeration batch treatment system that has been approved by
NSF in accordance with NSF Standard 40 shall be used. The aeration tank volume
shall hold at least 2 times the average daily wastewater flow for residential
use (including the use of a garbage disposal). Non-residential systems shall
have a tank volume size of 3 times the daily wastewater flow. Multiple tanks
shall be used to achieve the volume required. Multiple tanks require
connection at the bottom of each tank for flow equalization.
c) Filter beds shall not exceed 600 square feet. If a larger
area is needed, multiple beds shall be used, separated by a minimum distance of
15 feet, using a common mantle. The filter beds can be placed at any point on
the mantle to accommodate existing ground contours.
d) The filter length shall not exceed 3 times the width.
e) The sand filter media shall have an effective size of 0.5 to
2.0 millimeters, a uniformity coefficient of less than 3.5, and a 30-inch
depth.
f) The mantle shall be sized in accordance with the formula A =
QT/25, where A = Mantle Area, Q = Quantity of wastewater per day, and T =
Percolation time of the original soil in minutes per inch. (See Appendix A,
Illustration X, Exhibit E to convert soil investigation information to T (percolation
time).)
g) The mantle shall be at least equal to the area of the filter
bed. The mantle shall not be designed for percolation rates that exceed 120
minutes per inch.
h) The mantle area is to be cut into original soil to a depth of
6 inches and back-filled with 12 inches of torpedo sand that is graded as
FA1-FA8 in accordance with Standard Specifications for Road and Bridge
Construction (Illinois Department of Transportation).
i) The slope of the bottom of the mantle shall be level, plus or
minus one inch. The slope of the earth sidewalls of the filter shall be a
maximum of 3 feet horizontal to one foot vertical.
j) The mantle area shall be at least 12 inches deep. If the
maximum high groundwater table is less than 6 inches from the bottom of the
filter bed, additional torpedo sand shall be used to increase the isolation
distance between the bottom of the filter bed and the high groundwater table to
at least 6 inches. Other separation distances (e.g., well, property line)
shall be measured from the toe of the filter bed.
k) The distribution piping (4-inch perforated pipe) shall be
placed level to 15-inch centers in 12 inches of ¾-inch stone.
l) Sod shall be placed over the filter beds and mantle.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.96 PEAT FILTER SYSTEMS
Section 905.96 Peat Filter
Systems
a) General. Peat filter systems shall be preceded by a septic
tank, Imhoff tank, or aeration system meeting the requirements of Section 905.30,
905.40 or 905.100, and the effluent from the system shall be discharged into a
subsurface system approved in Section 905.60. The size of the subsurface
system may be reduced by ⅓, provided that the effluent quality meets the
requirements of Section 905.110(d)(1)(A) and (B).
b) Design. The system shall be sized in accordance with the
manufacturer's requirements as approved by the Department.
c) Approval of Systems. Manufacturers of peat systems shall
present information to the Department documenting that effluent from their
system meets the requirements of subsection (a). The information shall be in
the form of independent test data or reports. The Department will grant
approval and maintain a list of those systems meeting the requirements of this
subsection and only approved systems may be installed.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.100 AEROBIC TREATMENT PLANTS AND NSF INTERNATIONAL/ANSI STANDARD 40 WASTEWATER TREATMENT SYSTEMS
Section 905.100 Aerobic
Treatment Plants and NSF International/ANSI Standard 40 Wastewater
Treatment Systems
a) General. Aerobic treatment plants and NSF International/ANSI
Standard 40 wastewater treatment systems shall be tested and listed by NSF
International or a laboratory approved by ANSI and certified compliant with the
International Organization for Standardization (ISO)/International Electrotechnical
Commission (IEC) Guide 65 to determine compliance with the requirements of NSF International/ANSI
Standard 40, Residential Wastewater Treatment Systems. To assure compliance
with certification requirements and the Act and this Part, the Department will
obtain and retain from NSF International a complete list of approved systems,
approved components and approved component parts for each NSF
International/ANSI Standard 40 wastewater treatment system installed or
currently existing within the State. Until the Department receives the NSF
approval information, the system shall not be considered approved in accordance
with the Act and this Part. Standard 40 is a standard that covers an organized
and coordinated system of components that functions to treat wastewater
generated by individual residences. This Part shall allow approved aerobic
treatment plants and NSF International/ANSI Standard 40 wastewater treatment
systems to serve residential property that is occupied on a year-round or
full-time basis. Aerobic treatment plants shall not be used to serve
residential property that is used as a seasonal, weekend or part-time
residence.
b) Class II Effluent. Aerobic treatment systems listed by NSF International
or a laboratory approved by ANSI to determine compliance with NSF International/ANSI
Standard 40 for Class II effluent shall discharge to one of the following:
1) A subsurface seepage system designed and constructed in
accordance with the requirements of Section 905.60.
2) A sand filter designed and constructed in accordance with the
requirements of Section 905.70 or 905.80.
3) A waste stabilization pond designed and constructed in
accordance with the requirements of Section 905.90.
c) Class I Effluent. NSF International/ANSI Standard 40
wastewater treatment systems listed by NSF International or a laboratory
approved by ANSI to determine compliance with NSF International/ANSI Standard
40 for Class I effluent shall discharge to one of the following:
1) A subsurface seepage field designed and constructed to be at
least ⅔ the size determined necessary by Section 905.60. The subsurface
system shall be installed as shallow as possible while maintaining a minimum of
6 inches of cover. There shall be at least 12 inches between the bottom of the
subsurface seepage system (soil interface) and the shallowest limiting layer.
2) A surface discharge in accordance with Section 905.110.
d) Sizing. Aerobic treatment plants that are listed by NSF International
or a laboratory approved by ANSI to determine compliance with NSF International/ANSI
Standard 40 as Class I and rated at 500 gallons per day will be allowed for the
treatment of sewage from residential property having up to and including 4
bedrooms. Other aerobic treatment plants that are listed by NSF International or
a laboratory approved by ANSI to determine compliance with NSF International/ANSI
Standard 40 as Class I shall be sized as follows:
|
|
Minimum
Rated Treatment
|
|
Bedrooms
|
Capacity-Gallons
|
|
|
|
|
1
|
400
|
|
2
|
400
|
|
3
|
500
|
|
4
|
500
|
|
5
|
750
|
|
6
|
900
|
|
7
|
1000
|
|
8
|
1200
|
|
9
|
1350
|
|
10
|
1500
|
e) Installation. All components of aerobic treatment plants
shall be installed at the time of the original installation. If this is not
possible, a solid end cap shall be securely placed over the end of the
discharge line until the system can be completed. This will prevent the
discharge of raw sewage to the ground surface.
f) Accessibility for Inspection and Maintenance. The aerobic
treatment plants or NSF International/ANSI Standard 40 wastewater treatment
systems shall be equipped with one or more grade-level access manholes having a
minimum inside dimension of 18 inches that extend to 3 inches or more above the
ground surface. The manhole shall be equipped with a lid that is secured in
compliance with Section 5.7.2 of NSF International/ANSI Standard 40. These
manholes shall be located to permit periodic physical inspection and
maintenance of all compartments and component parts. Component parts include
submerged bearings, moving parts, tubes, intakes, slots, filters, and other
devices.
g) Service. Devices falling within the scope of NSF
International/ANSI Standard 40 require periodic maintenance to achieve
performance consistent with demonstrated capabilities. Implicit in NSF
International/ANSI Standard 40 is the recognition that assured professional
service is imperative. NSF International/ANSI Standard 40 and this Part
require a 2-year service policy to be provided as part of the initial service
agreement. (Note: The following initial service policy includes items not
included in the NSF International/ANSI Standard 40 service policy.)
1) Initial service policy. The private sewage disposal
installation contractor, through the manufacturer or the distributor of the
aerobic treatment unit, shall furnish a 2-year initial service policy to the
purchaser. This policy shall provide for:
A) Four inspection/service calls, at least one every 6 months,
that include inspection, adjustment and servicing of the mechanical and the
applicable component parts to ensure proper function;
B) An effluent quality inspection consisting of a visual check for
color, turbidity, scum overflow, and an examination for odors;
C) Reporting to the owner immediately any improper operation that
cannot be corrected at the time of the inspection or service call. This shall
be followed by a written report to the owner that includes the date by which
the condition will be corrected.
2) Continuing service policy. Each manufacturer shall make
available for purchase by the owner a continuing service policy with terms
equal to the initial service policy.
3) Standby parts. The local distributor shall stock standby
mechanical and electrical component parts for use when the plant's mechanical
or electrical components must be removed from the site for repairs.
4) Component parts. The mechanical and electrical component parts
shall be guaranteed against any defects in materials and workmanship as
warranted.
5) Service. Service shall be available within 2 working days
following a request.
6) Owner's manual. The manufacturer shall provide an owner's
manual with each unit. The manual shall include the following information:
A) Model numbers;
B) Functional description of unit, including a statement of
minimum performance requirements as established by test;
C) Design and flow diagrams;
D) Warranty;
E) Replacement policy and service policy;
F) Installation instructions;
G) Detailed operation and maintenance requirements (including user
responsibility, parts and service);
H) Rated service flow in GPM (gallons per minute) or GPD (gallons
per day);
I) Energy source and energy required for proper operation of the
plant; and
J) Specification of models tested under NSF International/ANSI Standard
40.
7) Service label. A clearly visible, permanently attached label
or plate giving instructions for obtaining service shall be placed at the
audible and visual alarm.
8) Responsibility of property owner. The property owner shall
be responsible for maintaining and operating the plant in accordance with this
Part and the manufacturer's specifications.
h) Operation. Aerobic treatment plants and NSF
International/ANSI Standard 40 wastewater treatment systems shall produce an
effluent meeting the physical, chemical and biological requirements of Section
905.110. Under normal operation and, if an electrical or mechanical failure or
other performance failure or malfunction occurs, the design and construction of
the aerobic treatment plant or NSF International/ANSI Standard 40 wastewater
treatment systems shall prevent the discharge of wastewater from any opening that
is not part of the designed flow path of the entire treatment process and shall
prevent the discharge of wastewater that is not in compliance with Section
905.110.
i) Maintenance. If a routine service call indicates an
electrical, mechanical or performance failure or malfunction or if routine
laboratory test results indicate improper treatment, the property owner shall
immediately take action to bring the aerobic treatment plant or NSF International/ANSI
Standard 40 wastewater treatment systems into compliance with this Part.
j) Non-residential Use. Aerobic treatment plants and NSF
International/ANSI Standard 40 wastewater treatment systems that are listed by
NSF International or a laboratory approved by ANSI to determine compliance with
NSF International/ANSI Standard 40 as Class I will be considered for use to
serve a non-residential property, provided that all of the following are met:
1) Total daily flows from the wastewater source into the plant
are at least 75% of the rated hydraulic capacity and do not exceed the rated
hydraulic capacity of the plant.
2) Wastewater influent shall not exceed the manufacturer's design
specifications for BOD5 loading as established by NSF International or a
laboratory approved by ANSI to determine compliance with NSF International/ANSI
Standard 40 during testing of the plant.
3) Hourly flows from the wastewater source into the plant are
less than or equal to the treatment capacity of the plant divided by 24. This
may require the installation of a flow equalization device.
4) A buried sand filter sized with a surface area equal to 2
gallons per square foot per day and dosed at least once but not more than 4
times per day shall immediately follow the aerobic treatment plant.
k) Splitting of Flows. Splitting of flows from a wastewater
source or the use of multiple aerobic treatment plants or NSF
International/ANSI Standard 40 wastewater treatment systems shall be prohibited
unless subsurface disposal of the effluent is used. Where allowed, splitting
of flows shall be done by pumps.
l) Private sewage disposal installation contractors or
homeowners who maintain or service aerobic treatment plants and NSF
International/ANSI Standard 40 wastewater treatment systems shall be required
to maintain the integrity of the NSF International seal or the seal of a
laboratory approved by ANSI to determine compliance with NSF International/ANSI
Standard 40. Only component parts approved for use in an individual plant may
be used. No design changes or component part changes may be made that will
void the NSF International seal or the seal of a laboratory approved by ANSI to
determine compliance with NSF International/ANSI Standard 40. Any person who
voids the NSF International seal or the seal of a laboratory approved by ANSI
to determine compliance with NSF International/ANSI Standard 40 shall be
responsible for repairing the plant so it can bear the NSF International seal
or the seal of a laboratory approved by ANSI to determine compliance with NSF International/ANSI
Standard 40 or shall replace the plant with an approved private sewage disposal
system.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.110 EFFLUENT DISCHARGES
Section 905.110 Effluent
Discharges
a) General. Buried sand filters, re-circulation sand filters,
waste stabilization ponds, aerobic treatment plants and NSF International/ANSI
Standard 40 wastewater treatment systems listed by NSF International/ANSI
Standard 40 as Class I effluent (see Section 905.100(a) and (c)) or any
Department approved or accepted system may be discharged to any one of the
following 3 options:
1) A receiving stream, river, lake or pond that provides greater
than a 5:1 dilution of the effluent, based on the 7-day, 10-year low flow
rate. A discharge within 10 feet of one of these receiving bodies of water
shall be considered to be a discharge to the receiving body of water.
Discharges greater than 10 feet from the receiving body of water shall comply
with subsection (a)(2) or (3). Discharges to a lake or pond shall be limited
to 2 discharges per surface acre of water. More than 2 discharges may occur
per individual surface acre of water; however, the total number of discharges
to total surface acres of water shall not exceed a ratio of 2:1. An example of
this is as follows: In a 20-acre lake, several discharges may enter the lake in
a ½-acre cove; however, the total discharges entering the lake would be limited
to 40. Where discharges are not equally distributed around a lake or pond, the
Department or local authority shall be consulted to assure that nuisance
conditions are not created.
2) A common collector, provided that the collector does not
discharge within one mile upstream from a public water supply intake, public
bathing beach, or to any public use area. A public use area is any area that
is frequently used by the public. Examples of a public use area are
playgrounds and picnic areas. Discharges from lots platted (e.g., individual
lots, subdivisions, commercial developments) after January 1, 2014 are not
eligible to discharge into a common collector.
3) The ground surface, where the discharge points of private
sewage disposal systems with surface discharges do not exceed an average of one
per acre and the effluent does not pond or create a nuisance condition.
b) Whenever a subdivision is platted that does not provide
private sewage disposal systems in compliance with Section 905.60 or subsection
(a) of this Section, then a sewage system in compliance with 35 Ill. Adm. Code
301 shall be provided.
c) When lots have been platted prior to March 15, 1996, the
applicant for plan approval or local authority approval may apply for a
variance to this Section in accordance with the provisions of Section
905.20(l).
d) Effluent Limitations
1) Surface discharging private sewage disposal systems shall not
exceed the following effluent standards:
A) The system shall comply with NSF International/ANSI Standard
40, Section 8.5.2.1.1 for carbonaceous 5-day biochemical oxygen demand (CBOD5)
and Section 8.5.2.1.2 for total suspended solids (TSS).
B) No effluent shall contain settlable solids.
C) Color, odor and turbidity shall be reduced to below discernable
levels.
D) No effluent shall contain floating debris, visible oil, grease,
scum or sludge solids.
E) Fecal coliform bacteria concentration shall not exceed 400
organisms per 100 ml.
F) Sample
Ports. After January 1, 2014, any surface-discharging system installed,
repaired, renovated or replaced shall have a sample port of at least 4 inches
in diameter or free-fall discharge of at least 12 inches located after the
disinfection component, which extends to 3 inches or more above the ground
surface. A sample port is not required if a free-fall discharge is within 200
feet of the disinfection device. The sample cannot be taken from a common collector
or drainage tile, but must be taken from a discharge point that discharges only
the treated effluent from the surface- discharging private sewage disposal
system.
G) A
surface-discharging system installed after January 1, 2014 shall not discharge
to a roadside ditch as stipulated in the Illinois Highway Code [605 ILCS
5/9-123].
2) Samples shall be analyzed in accordance with the Standard
Methods for the Examination of Water and Wastewater.
e) Private
sewage disposal systems designed to be compliant with subsection (d) can be
discharged to a subsurface seepage field designed and constructed to be at
least ⅔ the size determined necessary by Section 905.60. The subsurface
system shall be installed to be as shallow as possible while maintaining a minimum
of 6 inches of cover and one foot of separation from the bottom of the trench
to the shallowest limiting layer.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.115 NPDES PERMIT COMPLIANCE
Section 905.115 NPDES Permit Compliance
For those surface discharging private sewage disposal
systems from which effluent enters into the Waters of the United States that
require a general NPDES permit, a permit can be obtained from the US
Environmental Protection Agency (USEPA) or the Illinois Environmental
Protection Agency (IEPA). Systems permitted under the general NPDES permit
shall be in compliance with the terms and conditions of the general NPDES
permit. A surface discharging private sewage disposal system that is
required to be permitted under an individual NPDES permit shall be in
compliance with the terms and conditions of the individual NPDES permit.
Information about the applicability of the NPDES permit for surface discharging
private sewage disposal systems shall be obtained from USEPA or IEPA.
(Source: Added at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.120 DISINFECTION
Section 905.120 Disinfection
a) As of January 1, 2014, the effluent from any new, repaired or
replaced private sewage disposal system that is designed and approved to have a
discharge point shall be disinfected prior to discharge.
b) Chlorine Feeders. Chlorination equipment shall have a means
of removal of solids. Appendix A, Illustration S provides an example of a
typical chlorine feeder. All chlorine feeders shall meet the requirements of
Appendix A, Illustration S. Other feeders that meet the requirement of this
Section are also acceptable.
c) Chlorine Contact Tanks. Chlorine contact tanks shall be
baffled and shall provide a contact time of at least 30 minutes based on 2½
times the average flow. The minimum contact tank capacity shall be 30
gallons. Access to the distribution feeder shall extend to the ground surface.
d) Chlorine Residual. A final effluent free chlorine residual of
0.2 to 1.5 mg/1 shall be maintained.
e) Chlorine products used for the disinfection of treated
wastewater effluent shall be used according to the product's labeling.
f) After
January 1, 2014, any disinfection process or equipment that does not meet the
requirements of NSF International/ANSI Standard 46, Section 11 or does not
provide proper disinfection as determined by adequate third party testing will
not be approved for installation.
g) When
the private sewage disposal system incorporates a discharge to a subsurface
seepage system as a method to reduce the amount of effluent at the discharge
point, the disinfection device shall be the last component prior to the
discharge point.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.125 PUMPS, PUMPING/DOSING CHAMBERS, AND ANCILLARY EQUIPMENT
Section 905.125 Pumps,
Pumping/Dosing Chambers, and Ancillary Equipment
a) Pumps shall meet the following requirements:
1) The pump shall be submersible.
2) The pump shall be designed to handle wastewater and a minimum
of ½- inch diameter solids.
3) The pump shall be capable of delivering the required flow at
the design total dynamic head. The discharge pipe shall be the same size or
larger than the discharge of the pump.
4) The pump shall be constructed of corrosion-resistant
materials.
5) Performance curves and specification sheets indicating that the
criteria of this subsection (a) have been met shall be submitted with the plan
review application when pumps are to be used in a system.
b) Pumping Chambers
1) The pumping chamber shall be watertight, meaning that all
joints shall be sealed. The pumping chamber shall be filled with water after
being installed and backfilled to prevent the pumping chamber from floating out
of position because of hydrostatic pressures, unless the tank is installed in
dry soil.
2) The volume of the pumping chamber shall be sufficient to
provide the desired dosing volume, space for controls, space for setting the
pump, reserve capacity malfunction and flow-back after the pump shuts off
(volume of manifold and laterals).
3) A reserve capacity above the active pumping volume equal to ½
day's design flow shall be provided if single pumps are used. A reserve volume
is not needed if siphons or dual pumps are used.
4) An access riser shall extend at least 6 inches above the
ground surface.
5) The dosing volume shall be at least 5 times the pipe volume of
the dosing network and provide for filling and drainback of the network. The
average flow shall be used to determine the dosing volume.
6) The pump control device shall be adjustable so that the
required dosing volume is discharged during each pumping cycle. The control
system for the pumping chamber shall consist of a control for operating the
pump and an alarm system to detect when the system is malfunctioning. Pump
controls shall allow flexibility in adjusting the on-off depth. An example of
acceptable controls is shown in Appendix A, Illustration Q.
7) A high water alarm shall be provided with audible and visual
signals and a test function. The alarm shall be on a separate circuit. The
alarm control device shall be a sealed float or diaphragm switch and shall be
located to activate 2 to 3 inches above the pump turn-on level or siphon
activation level. After January 1, 2014, all electrical devices for new and
repaired private sewage disposal systems shall comply with Section 905.20(k).
c) Ancillary Equipment
1) A quick disconnect device shall be included in the discharge
piping to facilitate removal of the pump for inspection, repair or
replacement. The disconnect device shall be a threaded union, pitless adapter
or lift-out rail system.
2) A corrosion-resistant rope or cable of adequate strength shall
be affixed to the pump to facilitate installation and removal so that personnel
need not enter the chamber to disconnect the pump.
3) A pump control device shall be adjustable so that the desired
dosing volume can be discharged during each pumping cycle. The control device
may consist of one or more sealed float or diaphragm switches that may
cooperate with a relay or contact. Separate control panels located outside the
chamber shall be protected from the weather and shall provide no air path
between the panel and the pumping chamber.
4) A check valve between the pump and the piping network shall
not be allowed unless this piping system is below the frost line.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.130 HUMAN WASTE DISPOSAL
Section 905.130 Human Waste
Disposal
a) General. Privies, portable toilets, recirculation toilets,
incinerator toilets and compost toilets are approved for private sewage
disposal of human wastes. Other domestic wastes shall be disposed of in a conventional
system (see Section 905.30); however, the size of all components, as designed
in accordance with Appendix A, Illustration A, may be reduced 25 percent
(except that septic tanks may not be smaller than 750 gallons). Note: Compost
toilets may be used to dispose of other organic domestic wastes.
b) Privy Construction. All privies shall be constructed and
maintained in accordance with the following and Appendix A, Illustration T:
1) Pit Construction. The pit shall be constructed of materials
and in a manner so as to be able to endure the anticipated load and use and to
withstand the local environmental conditions without deteriorating. The pit
shall be constructed so that there shall be access to the pit for pumping and
cleaning.
2) Pit Size. The pit shall have a minimum capacity of 50 cubic
feet per seat.
3) Floor and Seat Riser. The floor and seat riser shall be
constructed of an impervious material and in a manner to exclude insects and
rodents. The seat riser shall be bonded to the floor to prevent seepage through
the riser onto the floor.
4) Seat Cover. The seat opening shall be covered with a hinged
lid that forms a tight seal.
5) Vent. Each pit or vault privy shall be provided with a vent
to the outside that creates airflow out of the building through the vent. The
vent opening shall be screened with 16 mesh screen to prevent the entry of
flies and shall terminate through the roof.
6) Maintenance. When any privy is filled to within 18 inches of
the bottom of the riser, it shall be pumped by a private sewage disposal system
pumping contractor.
7) Abandonment.
Privies that are no longer in use shall be completely pumped. The floor and
walls shall be cracked or crumbled so that the tank or pit will not hold water,
and the tank or pit shall be filled with sand or soil. If the tank or walls are
removed from the ground, the excavation shall be filled with soil.
c) Vault Privy. Watertight, non-metal vaults are required where
privies are used in areas where the groundwater or limestone formations are
within 4 feet of the bottom of the pit. The vault shall be provided with a
readily accessible cleanout that prohibits the entry of rodents, insects and
surface water. (See Appendix A, Illustration T.)
d) Septic Privy. The vault of a septic privy shall be
watertight. The subsurface seepage field shall consist of a minimum of one 10-foot
distribution line placed in a 2-foot wide trench constructed in accordance with
Section 905.60 and Appendix A, Illustration U.
e) Re-circulating Toilets
1) Self-contained toilets that treat and re-circulate the
flushing liquid shall be constructed of an impervious, easily cleanable
material and vented to the outside air through a screened pipe. The effluent,
if any, from the re-circulating toilet shall discharge into a subsurface
seepage field or into a disposal bag. The subsurface seepage field shall
consist of a minimum of one 10-foot long distribution line placed in a 2-foot
wide trench constructed in accordance with Section 905.60. The owner of a re-circulating
toilet shall dispose of any residual from the unit in an approved public or
private sewage disposal system.
2) Re-circulating toilets shall comply with the requirements of
the NSF International/ANSI Standard 41 and shall bear the NSF International or
the approved certification agency seal.
f) Incinerator Toilets
1) Incinerator toilets shall be designed and operated to provide
complete incineration of the contents without production of odors. The owner of
an incinerator toilet shall maintain the toilet and dispose of the contents in
accordance with Section 905.170(e).
2) Incinerator toilets shall comply with the requirements of NSF
International/ANSI Standard 41 and shall bear the NSF International or the
approved certification agency seal.
g) Compost Toilets
1) Compost toilets shall be designed in accordance with the
manufacturer's recommendations to serve the anticipated number of persons. The
owner of a compost toilet shall maintain the toilet and dispose of the contents
in accordance with Section 905.170.
2) Compost toilets shall comply with the requirements of NSF
International/ANSI Standard 41 and shall bear the NSF International or the
approved certification agency seal.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.135 PORTABLE SANITATION
Section 905.135 Portable Sanitation
a) Any
person operating in Illinois who sells, rents, leases, transports, services,
cleans, sanitizes or maintains a portable toilet or portable potable hand washing
unit or pumps, transports or disposes of waste from portable toilets or
portable potable hand washing units shall be licensed as a portable
sanitation business.
b) Only
a portable sanitation technician or portable sanitation technician trainee
certified by the Department as working for a portable sanitation business may
service, clean, sanitize or maintain a portable toilet or portable potable hand
washing unit, or pump, transport or dispose of waste from portable toilets or
portable potable hand washing units.
c) Any
person licensed as a private sewage disposal system pumping contractor on or
after January 1, 2014 may submit to the Department a completed application and
fee, within 6 months after January 1, 2014, requesting to be licensed as a
portable sanitation business. A person licensed as a private sewage disposal
system pumping contractor on January 1, 2014 may submit to the Department a
completed application and fee to be certified as a portable sanitation
technician without taking the examination or initial training required for the portable
sanitation technician certification. After July 1, 2014, all persons wanting
to become certified as a portable sanitation technician shall complete the
training requirements of this Section.
d) Any person wishing to
obtain a license as a portable sanitation business shall:
1) Submit
to the Department a completed application on forms provided by the Department;
2) Provide
a copy of the business' education and training materials and protocol for
educating and training for all employees requiring certification by the
Department;
3) Provide
a written statement signed by the owner or authorized representative specifying
that only certified portable sanitation technicians and portable sanitation
technician trainees will be transporting, servicing, cleaning, sanitizing or
maintaining portable toilets or portable potable hand washing units, or
pumping, transporting or disposing of waste from portable toilets or portable
potable hand washing units for the business; and
4) Submit
a non-refundable fee for the license as established in Section 905.200.
e) A
portable sanitation business license shall expire on June 30 of each year,
except that a license issued after April 1 and before June 30 shall expire on
June 30 of the following year.
f) Certification of
Employees
1) A
portable sanitation business shall submit the following materials to the
Department as part of the certification process of a portable sanitation
technician trainee:
A) A completed application
on a form provided by the Department;
B) A
non-refundable fee as established in Section 905.200; and
C) For
initial application, a copy of the individual's certificate of completion from
an approved training course; and for annual renewal of the certification,
documentation of attendance at an approved continuing education course.
2) A
portable sanitation business shall submit the following materials to the
Department as part of the certification process of a portable sanitation
technician:
A) A completed application
on a form provided by the Department;
B) A
non-refundable fee as established in Section 905.200; and
C) For
initial application, a copy of the individual's certificate of completion from
an approved training course; and for annual renewal of the certification, documentation
of attendance at an approved continuing education course.
g) Portable Sanitation
Technician Trainee
1) To
become certified as a portable sanitation technician trainee, an individual
shall:
A) Be an owner or employee of a licensed portable sanitation
business; and
B) Complete
an initial training or an education course provided by the portable sanitation
business and approved by the Department.
2) The
application shall be submitted on forms provided by the Department and accompanied
by the fee established in Section 905.200.
3) The
portable sanitation technician trainee certification is valid for only one
year. A portable sanitation technician trainee certification shall expire on
June 30 of each year, except that a certification issued after April 1 and
before June 30 shall expire on June 30 of the following year.
h) Portable Sanitation
Technician
1) To
become certified as a portable sanitation technician, an individual shall:
A) Be an
owner or employee of a licensed portable sanitation business;
B) Complete
training and an education course provided by and specific to the portable
sanitation business; this training shall be pre-approved by the Department; and
C) For
the original certification, provide a copy of the employee's documentation of
attendance and passing grade for the training and examination offered by the
Department or a training and testing program approved by the Department. For
renewal of the certification, the employee shall provide copies of the employee's
documentation of attendance at a continuing education course in accordance with
Section 905.200.
2) The
application shall be submitted on forms provided by the Department and
accompanied by the fee established in Section 905.200.
i) For
the attendee to receive credit to be used for obtaining or renewing
certification, education courses and continuing education course curricula
shall have Department approval prior to the attendee's attending the course.
Courses not pre-approved by the Department shall not be counted toward training
or continuing education.
j) The
examination for a portable sanitation technician certification shall test the
applicant's knowledge of safely pumping, cleaning and sanitizing portable
toilets and portable potable hand washing units and hauling and disposing of
wastes removed from portable toilets and portable potable hand washing units.
k) An
individual shall achieve a grade of 70% or higher to pass an examination for a
portable sanitation technician certification.
l) The
portable sanitation technician certification shall be renewed annually. A
portable sanitation technician certification shall expire on June 30 of each
year, except that an original certification issued after April 1 and before
June 30 shall expire on June 30 of the following year. If a renewal
application is mailed or received after June 30, a non-refundable reinstatement
fee will be required as provided in Section 905.200.
m) The
portable sanitation business is accountable for the following work conducted by
individuals certified by the business:
1) Cleaning,
servicing and replenishing required items or chemicals for each portable toilet
or portable potable hand washing unit serviced, inspected or maintained;
2) Pumping,
transporting or disposing of waste from portable toilets or portable potable
hand washing units.
n) Standards
for Constructing and Servicing Portable Toilets or Portable Potable Hand Washing
Units
Portable toilets or portable
potable hand washing units shall be constructed and serviced in the following
manner:
1) Rooms,
buildings or shelters housing portable toilets shall be of solid construction,
easy to clean and providing shelter and privacy. The portable toilet room
shall be ventilated to the outside, with the vent covered with 16-mesh screen.
Internal latches shall be provided for the doors to the portable toilets to
prevent inadvertent entry.
2) Waste
containers and portable potable water containers shall be fabricated from
impervious materials such as plastic, steel, fiberglass or their
equivalents. Containers shall be watertight and capable of containing the
waste and portable potable water.
3) Number
of Portable Toilets and Portable Potable Hand Washing Units at a Site
A) An
adequate number of portable toilets and portable potable hand washing units
shall be provided to be used by the number of persons anticipated.
B) The
portable toilets and portable potable hand washing units shall be serviced at a
frequency that maintains the units in a sanitary condition and free of odors.
C) The
employer, property owner or event coordinator shall acquire more units or
adjust the service and maintenance frequently to ensure sanitary conditions.
D) The
property owner's failing to provide a sufficient number of portable toilets or
portable potable hand washing units or a frequency of service and maintenance
capable of ensuring a sanitary condition is a violation of the Act and this
Part.
4) Servicing
shall include removing waste from containers; recharging containers with an
odor-controlling solution; installing a supply of toilet tissue, sanitary
single use towels, and liquid soap and refilling hand sanitizing solution,
based on the unit's intended use; and cleaning and sanitizing the portable
toilets and hand washing units.
A) Each
portable toilet and portable potable hand washing unit shall be thoroughly
cleaned and sanitized after each pumping or as part of the routine service.
Areas that shall be cleaned and sanitized include all internal parts of the
unit, which include the urinal, seat, counters, shelves, tank, walls, floor,
door and ceiling, in addition to the exterior of the door and handle.
B) The
portable toilet system contractor shall have 2 separate sets of cleaning equipment,
which shall be labeled and stored so that they are physically separated from
each other. One set shall be used to clean and sanitize the walls, counters,
shelves, handle, door and ceiling of the portable toilets and the portable
potable hand washing units. The second set of cleaning and sanitizing equipment
shall be used for the floors, urinals, seat and tank of the portable toilet. If
the units are cleaned and sanitized with a power washer, separate sets of
cleaning equipment are not needed.
C) Anti-bacterial
hand sanitizer shall be provided at each unit and shall be refilled at each
pumping, as needed. One portable potable hand washing unit with a supply of
sanitary single-use towels and soap may be provided for up to 5 portable
toilets in lieu of refilling anti-bacterial hand sanitizer at each unit. The
hand washing facility shall be located within 20 feet of the portable toilets.
The dispensers and hand washing facilities shall be cleaned and sanitized after
each pumping, and then refilled with potable water from an approved source.
5) After
a unit is cleaned and sanitized, it shall be inspected by the person designated
by the business to ensure that the unit is in compliance with this Section and
all other applicable Sections of this Part.
6) Any
defective portable toilets or portable potable hand washing units shall be
repaired or withdrawn from service by locking or removal.
7) Waste
shall be removed in a sanitary manner by means of a vacuum hose and discharged
to a leak-proof tank truck. All ports on the tank shall be valved and
capped.
8) Service trucks shall
have access to the toilets to be serviced.
9) The
service trucks and disposal of waste from tank trucks shall be in accordance
with Section 905.170(g).
10) A
business shall designate at least one representative who shall be responsible
for ensuring that each unit maintained by the business meets the standards of
cleanliness set forth in the Act and this Part.
11) Persons
engaged in cleaning and sanitizing units shall wear protective equipment and be
trained in proper procedures for cleaning, sanitation and self-protection.
12) All
portable sanitation businesses shall certify that the portable sanitation
technicians and portable sanitation technician trainees are capable of properly
cleaning and sanitizing a portable toilet and portable potable hand washing
unit. At a minimum, the business shall annually inspect each portable
sanitation technician's and portable sanitation technician trainee's work to
ensure that he or she is capable and can effectively clean and sanitize the
portable toilets and portable potable hand washing units to be serviced.
o) Violations
of the Act or any Section of this Part may result in a fine, civil penalty and
suspension, revocation or refusal to issue a license or certification for both
the portable sanitation business and the certified portable sanitation
technician or portable sanitation technician trainee.
(Source: Added at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.140 HOLDING TANKS
Section 905.140 Holding
Tanks
a) General. Holding tanks are approved for private sewage
disposal only under the following circumstances:
1) Where site conditions, such as type of soil, water table,
terrain, lack of size or other conditions, are not suitable to achieve
compliance with this Part for installing a private sewage disposal system.
2) As a temporary measure while awaiting the availability of a
municipal sewer extension. This temporary condition shall not exceed one year
in length.
3) As a sanitary dumping station to receive the discharge from
holding facilities on recreational vehicles.
4) To
receive the discharge from fixtures or drains that receive waste products such
as automotive grease, oils, solvents and chemicals that are not allowed to be
discharged into a private sewage disposal system. These waste products shall
be handled according to rules for the disposal of oil, gas and grease
promulgated under the Environmental Protection Act, or according to 35 Ill.
Adm. Code Subtitle G, or shall be taken to an oil and gas reclamation
center. (Also see the Illinois Plumbing Code.) Holding tanks to be used as
described in this Section shall be Underwriters Laboratories, Inc. certified,
constructed of materials approved for gas and oil interceptors as specified in
77 Ill. Adm. Code 890.520, and properly anchored to prevent flotation.
b) Approval. Approval for holding tanks shall be obtained in
writing from the Department or local authority prior to installation. Approval
shall be based on compliance with this Section.
c) Construction and Location. Holding tanks shall be designed
and constructed in compliance with Section 905.40 (Septic Tanks), except that
the outlet shall be permanently sealed. Holding tanks shall be located to
comply with the requirements for septic tanks and aerobic treatment plants (see
Appendix A, Illustration D).
d) Conversion to Conventional Private Sewage Disposal Systems.
Holding tanks installed under subsection (a)(2) shall be converted to a
conventional private sewage disposal system within one year after the original
installation if a municipal sewer has not been extended to serve the property.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.150 SANITARY DUMP STATIONS
Section 905.150 Sanitary
Dump Stations
a) General. Sanitary dump stations which receive the discharge
of holding tanks on recreational vehicles shall be designed and constructed in
accordance with the Recreational Area Code (77 Ill. Adm. Code 800),Appendix A:
Illustration V of this Part and the following requirements:
1) A sanitary dump station with a disposal system shall be
designed on the basis of 20 gallons per day per unsewered recreational vehicle
site.
2) A sanitary dump station with only holding capabilities shall
be designed on the basis of 140 gallons per unsewered recreational vehicle
site.
b) Construction and Location. The construction and location of a
sanitary dump station with a disposal system shall comply in all respects with
the applicable Sections of this Part, depending on the type of system used.
The location and construction of a sanitary dump station with only holding
capabilities shall comply with the requirements of Section 905.140.
c) Ancillary Requirements. A sanitary dump station shall be
provided with the following:
1) A concrete pad sloped at least one inch per 10 feet to a
drain. This pad shall extend at least 2 feet in every direction from the
drain, and shall have at least a 2 inch high curb around the outside perimeter
of the pad as indicated in Appendix A: Illustration V of this Part.
2) A foot-operated, self-closing cap which forms a tight seal
with the drain shall be provided.
3) The sewer line from the drain to the tank shall be at least 4
inches in diameter and constructed of material approved under Section
905.20(f). It shall be installed to maintain at least a 10 foot horizontal
separation between the water and sewer line, and the water line and the tank.
4) A water supply distribution tap for flushing the pad shall be
provided. The water supply line to the tap shall be of materials, location,
and construction in accordance with the Illinois Plumbing Code (77 Ill. Adm.
Code 890), and shall be provided with approved, properly installed back
siphonage protection. No "stop and waste" valves will be allowed on
this tap. This water tap shall be posted, "Not for Human Consumption.
Use for Flushing and Cleaning Purposes Only."
(Source: Amended at 20 Ill. Reg. 2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.160 SWIMMING POOL WASTEWATER
Section 905.160 Swimming
Pool Wastewater
a) General. Wastewater generated from the operation of a
swimming pool includes clear wastes, such as drainage from the pool proper,
deck drainage, and perimeter overflow system drainage, and turbid wastes, such
as filter wash and backwash water.
b) Approved Treatment and Disposal. Wastewater from swimming
pools may not be discharged to a private sewage disposal system receiving
domestic sewage. It shall be disposed of in the following manner:
1) Clear water wastes may be discharged directly to storm sewers,
natural drainage areas, or to the ground surface without additional treatment.
Such drainage shall not result in nuisance conditions which create an offensive
odor, or which produce a stagnant wet area, or which produce an environment for
the breeding of insects. These discharges will require an NPDES Permit from
IEPA if contaminants are added to the discharge that will cause any water
quality violation.
2) Wash or backwash water from sand filters may be discharged to
natural drainage areas, storm sewers, seepage pits, or to the ground surface.
Diatomaceous earth filter wash or backwash water may be discharged to one of
the above after treatment consisting of one of the following:
A) Passing the wastewater through a separation tank designed for removal
of the diatomaceous earth and suspended solids.
B) Settling the wastewater in a tank which is capable of holding
the volume of one backwash. One backwash is defined as the amount of water
generated from the backwash of the filters for a period of 2 minutes for
diatomaceous earth filters, at the required backwash flow rate. The tank shall
be dewatered after settling and prior to subsequent backwashes. Settled sludge
shall be periodically removed to prevent flushing of solids during
backwashing. (See Appendix A: Illustration W of this Part.)
C) A separate private sewage disposal system designed and
constructed in accordance with the applicable Sections of this Part.
(Source: Amended at 20 Ill. Reg. 2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.170 SERVICING, CLEANING, TRANSPORTING AND DISPOSING OF WASTES FROM PRIVATE SEWAGE DISPOSAL SYSTEMS
Section 905.170 Servicing,
Cleaning, Transporting and Disposing of Wastes from Private Sewage Disposal
Systems
a) General. The collection, storage, transportation, and
disposal of all septage shall be handled in accordance with this Section and in
accordance with 40 CFR 503 – Standards for the Use or Disposal of Sewage
Sludge.
b) Truck Identification. The name under which the business is
conducted and the town of company origin and telephone number of the business
shall be painted on each side of every pumper truck. The company name shall be
easily legible and the letters shall be at least 8 inches high in contrasting
colors.
c) Equipment Inspection. Equipment shall be subject to
inspection and approval by a representative of the Department or local
authority at any reasonable time and, upon request, shall be available for
inspection at a designated location.
d) Vehicle Construction and Equipment. Each vehicle used for
collection and transportation of waste shall be equipped with a leakproof and
tightly sealed tank for septage hauling. The interior and exterior sections of
all portable containers, pumps, hoses, tools, or other implements that have
been contaminated shall be rinsed clean after each use and the rinsings shall
be disposed of such that no health hazard or nuisance results. Trucks and tanks
shall comply with the following:
1) The vehicle shall be equipped with either a vacuum pump or
other type of pump that is self-priming and will not allow any seepage from the
diaphragm or other packing glands.
2) The discharge nozzle shall be located so that there is no flow
or drip onto any portion of the truck.
3) The discharge nozzle shall be capped when not in use.
e) Notification of Disposal Site. Annually, the private sewage
disposal system pumping contractor shall:
1) Notify the Department and local authority of the sites
utilized for disposal. Information to be reported shall be: county, township,
range, and section, with a description to the nearest ¼ section; name and
address of the owner of the property; and purpose for which the disposal site
is otherwise used, such as pasture, grain crops, mowing crops, or timber.
2) Provide an annual estimate of the total gallons of septage
disposed of at each site.
3) Describe the methods of disposal at each site.
f) Disposal Methods. Methods of septage disposal approved by the
Department are as follows:
1) Discharge to a Municipal Sanitary Sewer System. Discharge to
a municipal sanitary sewer system is approved when the municipality has
approval from the Illinois Environmental Protection Agency to receive septage
from private sewage disposal systems; and the contractor has written approval
from the municipality to discharge septage into the system.
2) Application to Agricultural Land. Septage may be applied to
agricultural land provided the following criteria are met:
A) The depth to the groundwater table or to fractured limestone
formations is at least 4 feet below the ground surface.
B) The septage is disposed of in the following manner:
i) It originates from private sewage disposal systems that treat
only domestic sewage as that term is defined in Section 3 of the Private Sewage
Disposal Licensing Act [225 ILCS 225/3];
ii) It is not applied to land that has been saturated by rainfall
during the 24-hour period preceding the intended application time;
iii) It is not applied to land with water ponded upon it;
iv) It is not applied to land within 200 feet of wells, homes, the
rim of a sink hole, underground mine, cave, tunnel, other water supplies, ponds
or streams;
v)
It is not applied to land having greater than 5% slope;
vi)
It is not applied to land that is intended to grow root vegetables, or
other low growing fruits or vegetables that may be eaten raw;
vii)
It is applied at a rate that does not exceed the agronomic rate required
by USEPA regulations (40 CFR 503);
viii)
It is applied from a vehicle moving at least one mile per hour (88 feet
per minute);
ix)
Where it is determined by the Department or local authority that a
nuisance condition (see Section 905.160(b)(1)) exists, then the septage shall
be incorporated into the soil.
3) Discharge to Sludge Lagoons or Sludge Drying Beds. Discharge
to a sludge lagoon or drying bed must be approved by the Illinois Environmental
Protection Agency (IEPA) (35 Ill. Adm. Code 309) or the owner/operator of the
lagoon or drying bed must have a permit from the IEPA to receive septage from
the contractor. If the contractor is going to construct a sludge lagoon or
drying bed, a permit will be necessary from the IEPA to construct and operate
the proposed facility.
4) Discharge to an Incinerator Device. Discharge of septage to
an incinerator must be approved by the IEPA or the owner/operator of the
incinerator must have a permit from the IEPA to receive septage from the
contractor.
5) Discharge to a Sanitary Landfill. Discharge of septage to a
sanitary landfill must be approved by the IEPA or the owner/operator of the
landfill must have a permit from the IEPA to receive the septage from the
contractor.
g) Methods
for the disposal of waste from portable toilets shall be as follows:
1) Discharge to a Municipal Sanitary Sewer System. Discharge to
a municipal sanitary sewer system is approved from private sewage disposal
systems when the contractor has written approval from the municipality to
discharge septage into the system.
2) Discharge to Sludge Lagoons or Sludge Drying Beds. Discharge
to a sludge lagoon or drying bed must be approved by the Illinois Environmental
Protection Agency (IEPA) (35 Ill. Adm. Code 309) or the owner/operator of the
lagoon or drying bed must have a permit from the IEPA to receive septage from
the contractor. If the contractor is going to construct a sludge lagoon or
drying bed, a permit will be necessary from the IEPA to construct and operate
the proposed facility.
3) Discharge to an Incinerator Device. Discharge of septage to
an incinerator must be approved by the IEPA or the owner/operator of the
incinerator must have a permit from the IEPA to receive septage from the
contractor.
4) Discharge to a Sanitary Landfill. Discharge of septage to a
sanitary landfill must be approved by the IEPA or the owner/operator of the
landfill must have a permit from the IEPA to receive the septage from the
contractor.
h) Other Wastes. The following shall not be disposed of by
application to agricultural land:
1) Waste from a portable toilet; and
2) Holding tank waste as provided in Section 905.140(a)(4).
(Source: Amended at 27 Ill.
Reg. 3074, effective February 10, 2003)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.180 EXAMINATIONS FOR LICENSURE
Section 905.180 Examinations
for Licensure
a) Applications
1) Each person who desires to apply for admittance to the
examination for a Private Sewage Disposal System Installation Contractor
license or a Private Sewage Disposal System Pumping Contractor license shall
file an application for examination on forms provided by the Department. These
forms may be obtained by writing to the Illinois Department of Public Health,
Division of Environmental Health.
2) The Department will establish examination dates and locations.
A completed application, a photograph of the applicant, and a fee of $100 for
each examination shall be filed with the Department at least 30 days prior to
the examination date.
b) Examination
Requirements and Results
1) Installation License Examination. The examination for a
Private Sewage Disposal System Installation Contractor license shall test the
applicant's knowledge of the design, installation, operation, maintenance, repair
and service of private sewage disposal systems.
2) Pumping Licensing Examination. The examination for a Private
Sewage Disposal System Pumping Contractor license shall test the applicant's
knowledge of pumping, hauling and disposing of wastes removed from private
sewage disposal systems.
3) Individuals desiring both the installation contractor license
and pumping contractor license shall pass the examination for each license.
4) Passing Grade. The examination shall consist of questions
with a combined grade value of 100 points. To successfully pass the
examination, a grade of not less than 70 shall be obtained.
5) Failure to Attend an Examination. Any person who fails to
notify the Department in writing by letter, fax or e-mail at least 2 working
days prior to the date of the examination and fails to attend the examination
will be required to resubmit an application and fee to be eligible to take an
examination on another date. If an emergency or severe weather conditions do
not allow an individual to attend an examination, the individual may make a
written request to the Department explaining why the individual was unable to
attend. The Department will review the request and, if the request is
accepted, the individual will not be charged a new application fee to
reschedule the examination.
c) Regulator Exemption
1) Currently
employed staff of the Department or an agent of the Department, local health
department or municipalities administering the Private Sewage Disposal Program
may apply to take an examination. The fee for the examination will be waived,
but in waiving the fee the individual, upon passing the examination, will not
be able to act as a licensee or perform the duties empowered under the Act and
this Part for the specific license. Taking the examination will only verify
and evaluate the individual's knowledge of this Part.
2) If an
individual is employed by the Department or is an agent of the Department,
local health department or municipality and is licensed as a private sewage
disposal installation contractor, private sewage disposal pumping contractor,
portable sanitation technician or portable sanitation technician trainee, the
individual may not perform the duties empowered under the license or
certification within the State. This subsection (c)(2) applies to individuals
employed at the Department or as agents that evaluate and approve construction
permits for private sewage disposal systems, inspect private sewage disposal
systems or enforce the Act and this Part within their jurisdiction.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.190 INSTALLATION APPROVAL
Section 905.190 Installation
Approval
a) Plan approval shall be obtained from the Department or local
authority prior to beginning any construction of a new private sewage disposal
system. A new private sewage disposal system shall consist of, but not
necessarily be limited to, the following:
1) A system where a septic tank is replaced or where a major
component of the system is removed or added. Examples of major components
would be the replacement or addition of an aeration unit, re-circulating sand
filter, sand filter, seepage pit, seepage bed or waste stabilization pond.
2) A system where the size of the absorption field is increased
by 25% or more or where 25% or more of the existing absorption field is removed
and replaced with new piping and backfill material.
b) Requests for approval shall be submitted on the forms provided
by the Department or local authority. At a minimum, the necessary information that
shall be submitted to the Department or local authority for approval shall
consist of:
1) Plans or drawings to scale indicating lot size with dimensions
showing the location of the system and type of system to be constructed; the
dimensions and the length of lateral pipe to be installed, showing type of
backfill material if applicable; distances to water lines, water wells, potable
water storage tanks and buildings; site elevations and ground surface
elevations sufficient to determine the elevation of system components and the
slope of the ground surface; location of sanitary sewer, if available, within 300
feet of the property; and typical cross-section of the system.
2) Number of bedrooms or design volume.
3) Soil investigation results or percolation test results and the
separation distance from the trench bottom to a limiting layer. The private
sewage disposal system installation contractor or homeowner shall submit
information with the plan approval application or local authority permit
application that a limiting layer does not exist within the distances provided
in Section 905.60(a)(7).
4) Owner's name and address.
5) Name and signature of applicant.
c) The
applicant's signature serves as written acknowledgement that the property
owners are aware of and accept the responsibility to service and maintain the
private sewage disposal system in accordance with the Private Sewage Disposal
Licensing Act and this Part. If the owner of the site is a developer or
contractor, he or she shall notify the purchaser and the Department or the
Department's agent of the transfer of ownership and responsibility for
maintenance.
d) Persons who construct, install, repair or modify a private
sewage disposal system shall notify the Department or local authority at least
48 hours prior to commencement of the work.
e) If any person constructs, installs, repairs or modifies a
private sewage disposal system without complying with the requirements of
subsections (a) through (d) of this Section and backfills any portion of the
system or covers any portion of the system with earth, cinders, gravel, shale
or any other material that will prevent the Department or local authority from
viewing the system to determine compliance with this Part, the property owner
or private sewage disposal installation contractor shall uncover the backfilled
or covered portions of the system.
f) Contractor Responsibility. The private sewage disposal
installation contractor is responsible for percolation test results and the
sewage disposal system that is designed and constructed using those results.
Acceptance of percolation tests from other sources does not relieve the
installation contractor from responsibility. The private sewage disposal
system installation contractor is also responsible for the following:
1) Constructing, installing, repairing, modifying, or maintaining
the private sewage disposal system in accordance with this Part;
2) Providing the results of soil classification information or
percolation tests used to design a private sewage disposal system to the
property owner and retaining copies of this information for at least 5 years;
3) Providing service to aerobic treatment plants at least equal
to Section 905.100(g); and
4) Assuring compliance with all codes that may apply to the
system, including the National Electrical Code.
g) Soil Classifier Responsibility. The soil classifier or
Illinois licensed professional engineer shall be responsible for the accuracy
of the information from soil investigations used to design private sewage
disposal systems.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.200 LICENSES AND FEES
Section 905.200 Licenses and
Fees
a) An individual may obtain a license as a private sewage
disposal system pumping contractor or a private sewage disposal system
installation contractor upon successfully passing the examinations given for
each, then applying on forms provided by the Department and submitting the
annual license fee of $100 to the Department.
b) Each person who holds a currently valid plumbing license
issued under the Illinois Plumbing License Law [225 ILCS 320] shall not
be required to pay the annual license fee, but shall comply with all other
provisions of the Act and this Part, including the requirement for
examination for licensure. (Section 5(a) of the Act)
c) The fee to be paid for the annual renewal of either a private
sewage disposal system pumping contractor or a private sewage disposal system
installation contractor license shall be $100.
d) The fee to be paid for the reinstatement of a private sewage
disposal system pumping contractor license or a private sewage disposal system
installation contractor license that has expired for a period of less than 3
years shall be $50, plus all lapsed renewal fees.
e) A license that has expired for more than 3 years may be
restored only by passing the written examination and paying the required fees.
f) A person who does not obtain a license within 2 years after
successfully completing the appropriate examination shall be required to file a
new application and fee with the Department in accordance with Section
905.180(a) and again successfully pass the examination prior to applying for a
license.
g) The Department shall reinstate a license that
expires while a licensee is in the active military service of the United States
upon application to the Department by the former licensee within two years
after termination of military service, payment of the annual license fee and
submission of evidence of military service. The license shall be
reinstated without examination and without payment of the reinstatement fee.(Section
5(b) of the Act)
h) As of
January 1, 2014, all individuals licensed as a private sewage disposal system
pumping contractor or a private sewage disposal system installation contractor
or certified as a portable sanitation technician shall be required to obtain 3
hours of continuing education prior to the renewal of the license. The
Department will review and approve continuing education hours, based on whether
the content of the course is current and pertinent to the advancement and
knowledge level of the industry. For individuals to receive credit for
education, continuing education courses shall be approved by the Department
prior to the course being offered. The contractor shall submit the certificate
of completion of the required education to the Department for approval prior to
the reissuance of the licenses.
i) The
fee to be paid for the original license of a portable sanitation business and
for the annual renewal of a license of a portable sanitation business shall be
$250.
j) The
original and annual renewal fee to be paid for the certification of a portable
sanitation technician shall be $50.
k) The
fee to be paid for the certification of a portable sanitation technician
trainee shall be $50.
l) The
fee to be paid for the reinstatement of a portable sanitation business license
that has expired for a period of less than 3 years shall be $100, plus all
lapsed renewal fees.
m) The
fee to be paid for the reinstatement of a portable sanitation technician
certificate that has expired for a period of less than 3 years shall be $50,
plus all lapsed certification fees.
n) Private
sewage disposal system installation contractor or private sewage disposal
pumping contractor licenses shall be renewed by November 30 of each calendar
year. Individuals who fail to renew a private sewage disposal system
installation contractor or private sewage disposal pumping contractor license
prior to December 1 will be required to pay the reinstatement fee of $50. A
license cannot be issued until all fees have been paid.
o) Portable
sanitation business licenses shall be renewed by April 30 of each calendar
year. Businesses that fail to renew a license prior to June 1 will be required
to pay the reinstatement fee of $100. A license cannot be issued until all
fees have been paid.
p) Portable
sanitation technician licenses shall be renewed by April 30 of each calendar
year. Individuals who fail to renew a license prior to June 1 will be required
to pay the reinstatement fee of $50. A license cannot be issued until all fees
have been paid.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.205 CIVIL PENALTIES AND TIME ALLOWANCES FOR CORRECTIVE ACTION
Section 905.205 Civil
Penalties and Time Allowances for Corrective Action
a) Amount
of Penalty
1) The Department may assess civil fines against any person or
licensee who constructs, installs, repairs, modifies, maintains or fails to
provide for required maintenance of a private sewage disposal system, or any
person or licensee who pumps, hauls or disposes of wastes from a private sewage
disposal system in violation of any Section of the Act or this Part.
2) The Department shall determine the amount of the fine based
upon the seriousness of the violation. The seriousness of the violation will be
determined as follows:
A) Type A – violations considered the most grievous, which shall
be grounds to assess a larger fine, shall be activities that create a health
hazard, unlicensed activities and repeat violations. Examples of these
activities include violations of vertical or horizontal separation distances,
falsifying information on permits or reports, addition of prohibited materials
to a private sewage disposal system, use of improper septage disposal methods
and prohibited discharges. The amount of the fine shall not exceed $1,000 for
each violation in addition to $100 per day for each day the violation
continues.
B) Type B – violations relating to improper construction
practices, the use of improper materials, failure to install a system according
to the approved plan, any violation of Section 905.135 and pumper equipment
violations shall be considered more serious. The maximum fine shall not exceed
$750 for each violation in addition to $100 per day for each day the violation
continues.
C) Type C – administrative violations involving paperwork, such as
failure to obtain a permit or improper pumping truck lettering, shall be
considered the least serious. The maximum fine shall not exceed $500 for each
violation, in addition to $100 per day for each day the violation continues.
D) For the purposes of determining a repeat violation, an initial
violation means the first violation of a particular Section of the Act or this
Part within the previous 3 years. An identical or similar violation (example:
a violation of vertical or horizontal separation distance or septage disposal) that
occurs within a 3 year period will be considered a repeat violation.
b) Correction of Violation. Correction of violations that are
considered serious health hazards as determined by the Department or local
health department shall begin immediately and be completed within 7 days.
Other violations shall be corrected within 30 days after notification by the
Department or the local health department. An exception to this requirement
may be authorized by the Department or local health department when
extenuating circumstances prevent correction in a timely manner. Examples of extenuating
circumstances include weather, physical conditions that prevent construction or
repair, or lack of adequate materials. The Department or local health
department may also grant an extension of time for correction, based on the
type and seriousness of the violation and the violator's demonstrated progress
in correcting the violation.
c) Any violation may be referred to the State's Attorney of the
county in which it occurs or to the Attorney General for prosecution.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.210 NOTIFICATION OF DISPOSAL SITE (REPEALED)
Section 905.210 Notification
of Disposal Site (Repealed)
(Source: Repealed at 20 Ill. Reg. 2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION A Quantity of Sewage Flows
|
TYPE OF ESTABLISHMENT
|
Unit
(per)
|
Gallons
Per
Day
|
|
Permanent Residential Dwellings
|
|
|
|
Single Family
|
bedroom
|
200
|
|
Multi-Family
|
bedroom
|
200
|
|
Individual Mobile Homes
|
bedroom
|
200
|
|
Mobile Home Parks
|
space
|
400
|
|
Boarding Houses
|
person
|
50
|
|
Rooming House
|
resident
|
40
|
|
|
|
Institutions
|
|
|
|
Hospitals, Medical
|
bed
|
250
|
|
Hospitals, Medical
|
employee
|
15
|
|
Hospitals, Mental
|
bed
|
150
|
|
Hospitals, Mental
|
employee
|
15
|
|
Long-Term Care Institutions
|
bed
|
125
|
|
Long-Term Care Institutions
|
employee
|
15
|
|
Prison
|
inmate
|
150
|
|
Prison
|
employee
|
15
|
|
|
|
Schools
|
|
|
|
Boarding School
|
person
|
150
|
|
Schools Without Cafeteria
|
person
|
15
|
|
or Showers
|
|
|
|
Schools W/Cafeteria & Showers
|
person
|
25
|
|
Schools W/Cafeteria or Showers
|
person
|
20
|
|
|
|
Travel
|
|
|
|
Airports
|
passenger
|
5
|
|
Railway Stations
|
passenger
|
5
|
|
Bus Stations
|
passenger
|
5
|
|
Highway Rest Areas
|
traveler
|
5
|
|
|
|
Recreational & Seasonal
Areas
|
|
|
|
Campgrounds W/Mobile Homes
|
site
|
150
|
|
Swimming Pools & Bathing Beaches
|
person
|
10
|
|
Comfort Sta. W/Toilets & Showers
|
space
|
35
|
|
Comfort Sta. W/O Showers
|
space
|
25
|
|
Day Camps W/O Meals
|
person
|
25
|
|
Day Camps W/Meals
|
person
|
35
|
|
RV Parks W/Water and Sewer
|
space
|
50
|
|
Hook-Ups
|
|
|
|
Cottages and/or Small Dwellings
|
bedroom
|
150
|
|
W/Seasonal Occupancy
|
|
|
|
Picnic Parks W/Toilet Facilities
|
person
|
10
|
|
Only
|
|
|
|
Youth Camps W/O Cafeteria
|
person
|
50
|
|
Youth Camps W/Cafeteria
|
person
|
60
|
|
Migrant Labor Camps
|
person
|
150
|
|
Sanitary Dump Station for
|
site
|
20
|
|
Unsewered Site
|
|
|
|
Campground W/Central Bath and
|
person
|
35
|
|
Toilet Facilities
|
|
|
|
|
|
Commercial, Industrial &
Misc.
|
|
|
|
Country Clubs, No Kitchen
|
member
|
25
|
|
Hotels & Motels
|
bed
|
50
|
|
Places for Public Assembly
|
person
|
5
|
|
Theaters
|
seat
|
5
|
|
Churches W/O Kitchen
|
seat
|
3
|
|
Churches W/Kitchen
|
seat
|
6
|
|
Restaurants
|
meal
|
10
|
|
Restaurants W/Bar & Cocktail
|
meal
|
12
|
|
Offices & Day Workers
|
person
|
15
|
|
Shopping Centers
|
(per 1000)
sq. ft. of
floor area)
|
250
|
|
Stores
|
toilet
|
400
|
|
Service Stations (served)
|
vehicle
|
10
|
|
Laundries
|
customer
|
50
|
|
Construction Camps or Sites,
|
|
Factories W/Toilets &
Showers
|
person
|
35
|
|
Factories w/Toilets, No Showers
|
person
|
20
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section
905.ILLUSTRATION C List of Approved Plastic Pipe for Private Sewage
Disposal System
|
|
|
|
|
|
|
TYPES OF PIPES
|
ASTM
STANDARD
|
BUILDING
SEWER 1
OR COMMON
COLLECTOR
|
SEWER
LINES 1
|
ALL
SUBSURFACE
SEEPAGE
SYSTEMS
|
|
|
|
5 ft. from building to septic-aeration tank to 5 ft.
beyond the septic tank, aeration tank or distribution box
|
Additional treatment facilities and sand filter
distribution lines and collection lines
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ABS
|
(DWV Schedule 40)
|
F628-06
|
x
|
x
|
x
|
|
ABS
|
(DWV Schedule 40)
|
D2661-06
|
x
|
x
|
x
|
|
ABS
|
|
D1527-99
(2005)
|
x
|
x
|
x
|
|
ABS
|
(Sewer Pipe)
|
D2751-05
|
x2
|
x2
|
x2
|
|
PVC
|
|
D1785-06
|
x
|
x
|
x
|
|
PVC
|
(DWV Schedule 40)
|
D2665-07
|
x
|
x
|
x
|
|
PVC
|
(DWV Schedule 40)
|
F891-04
|
x
|
x
|
x
|
|
PVC
|
(Type PSM) (SDR 35)
|
D3034-06
|
x2
|
x2
|
x2
|
|
|
|
|
|
|
|
|
PVC
|
(Sewer & Drain
PS-50)
|
F891-04
|
x
|
x
|
x
|
|
PVC
|
(Sewer & Drain
PS-25)
|
F891-04
|
x
|
x
|
|
|
PVC
|
(Corrugated-Smoothwall)
|
F949-06
|
x
|
x
|
|
|
PVC
|
(Std. or Perforated)
|
D2729-03
|
|
x
|
x
|
|
PE
|
(Smoothwall)
|
R810-07
|
|
x
|
x
|
|
|
|
AASHTO
Standard
M252-06
|
|
|
|
|
PE
|
(Corrugated-Perforated)
|
F405-05
(Heavy Duty Only)
|
|
|
x
|
|
PE
|
(Corrugated-(Perforated)
|
F667-06
|
|
|
x
|
|
|
|
|
|
|
|
|
x –
|
Indicates approved use.
|
|
l Plastic
materials shall not be co-mingled within this area except through the use of
proper adapters. (See Illinois Plumbing Code.) When the building sewer is of
a type of material that is different from the building drain, proper
transition fittings shall be used.
|
|
2 Pipe shall be SDR (Standard Dimension
Ratio) 35 only.
|
|
Note:
|
The last 2 numbers of the ASTM Standard indicate the date
of the edition.
|
|
|
|
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION D Location of Components of
Private Sewage Disposal Systems
|
MINIMUM DISTANCE
ALLOWABLE FROM 1,2
|
|
|
|
Artificial Drain
|
|
|
COMPONENT PART OF SYSTEM
|
Cistern Well, or Suction Line from Pump To Well
|
Water Supply Line3 Pressure
|
Lake, Stream In ground Swimming Pool or Other Body of
Water
|
Property Dwelling
|
Property Line4
|
|
|
FEET
|
FEET
|
FEET
|
FEET
|
FEET
|
FEET
|
|
|
Building Sewer 5
|
50
|
10
|
25
|
–
|
–
|
–
|
|
|
Septic Tank or
Aerobic Treatment Plant
|
50
|
109
|
25
|
5
|
5
|
–
|
|
|
Distribution Box
|
75
|
10
|
25
|
10
|
5
|
–
|
|
|
Subsurface
Seepage System
|
75
|
25
|
25
|
10
|
5
|
10
|
|
|
Sand Filter
|
75
|
25
|
15
|
10
|
5
|
10
|
|
|
Privy
|
75
|
25
|
25
|
20
|
5
|
10
|
|
|
Waste
Stabilization Pond
|
75
|
25
|
25
|
20
|
5
|
10
|
|
|
Surface
Discharge Effluent Line
|
50
|
10
|
–
|
–
|
5
|
–
|
|
|
Effluent Receiving
Trench
|
75
|
25
|
15
|
10
|
5
|
10
|
|
|
Treated
Effluent Discharge Point6
|
50
|
10
|
−
|
20
|
25
|
25
|
|
|
Class V
Injection Wells7
|
2008
|
25
|
25
|
10
|
5
|
10
|
|
|
1 These
distances have been determined for use in clay, silt and loam soils only.
The minimum distances required for use in sand or other types of soil shall
be determined for the proposed private sewage disposal system and approved
by the Department. Approval will be given if the Department determines that
the soil will provide treatment of the sewage.
|
|
2 For
separation distances to closed loop wells, see 77 Ill. Adm. Code 920.180.
|
|
3 See Section 905.20(d) for additional details on water
line and sewer separation.
|
|
4 If a common property is used, the boundary of the
common property shall be used.
|
|
5 The building sewer or surface discharge effluent line
may be located to within 10 feet of a well or suction line from the pump to
the well when cast iron pipe with mechanical joints or Schedule 40 PVC pipe
with watertight joints is used for the building sewer or surface discharge
effluent line.
|
|
6 Any surface discharging system installed, repaired or
renovated after January 1, 2014.
|
|
7 Class V Injection Wells are defined in Illinois
Pollution Control Board rules. They are typically a shallow well used to
place fluids directly below the land surface. See, e.g., 35 Ill. Adm. Code
704.105. 704.106 and 704.280.
|
|
8 A lesser separation distance may be obtained with
approval or a waiver from IEPA.
|
|
9There shall be 25 feet separation from public water
supply water mains and water service lines. The terms public water supply,
water main and water service line shall have the same meaning as in the
Illinois Pollution Control Board's Public Water Supplies rules. See, e.g.,
35 Ill. Adm. Code 653.118 and 653.119.
|
|
|
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION E Septic Tanks
Section 905.EXHIBIT A Septic Tank with Slip-In Baffles
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION E Septic Tanks
Section 905.EXHIBIT B Septic Tank with T-Baffles
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION E Septic Tanks
Section 905.EXHIBIT C Typical Gas Deflection Devices
(Source: Added at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION F Minimum Volumes for Septic
Tanks Serving Residential Units
|
NUMBER
OF BEDROOMS
|
MINIMUM
LIQUID CAPACITY OF TANK (GALLONS)
|
MINIMUM
LIQUID CAPACITY OF TANK (GALLONS) WHEN GARBAGE GRINDER IS USED
|
|
2
or less
|
750
|
1125
|
|
3
|
1000
|
1500
|
|
4
|
1250
|
2000
|
|
5
|
1500
|
2200
|
|
6
|
1750
|
2600
|
|
7
|
2000
|
3000
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION G Instructions for Conducting
Percolation Tests
Percolation tests shall not be made in frozen ground or
ground that has been filled in the preceding 12 months. Percolation tests shall
be performed in accordance with the following procedures:
1. Number
and Location of Percolation Tests. Select an area where the seepage field will
be located. When digging the holes, avoid animal burrows, large root channels,
etc. At least 3 separate percolation tests shall be performed at the site of
each proposed disposal area. The percolation test holes shall be at least 50
feet apart. At least one hole shall be located at the lowest elevation of the
proposed absorption field area. The 2 holes with the highest results shall be
used to determine percolation rate.
2. Depth
of Percolation Test Hole. Dig or bore the holes with horizontal dimensions
approximately 4 to 6 inches in diameter to the depth of the proposed seepage field
or seepage bed.
3. Preparation of Test
Hole.
a) Carefully
pick the bottom and sides of the hole with a knife blade or sharp pointed
instrument to remove smeared or smoothed soil and to provide a natural soil
interface into which water may percolate.
b) Remove all loose
material from the hole.
c) Add 2
inches of coarse gravel to protect the bottom from scouring and sediment. A
removable hardware cloth screen to line the lower part of the hole also helps
prevent sloughing of the hole sides during testing.
4. Saturation
and Swelling of Soil: It is important to distinguish between saturation and swelling.
Saturation means the void spaces between soil particles are full of water.
This can be accomplished in a very short period of time. Swelling is caused by
the intrusion of water into the individual soil particle. This is a slow
process, especially in a clay type soil and is the reason for requiring a
prolonged soaking period.
a) On
the day prior to conducting the percolation test, carefully fill the hole with
water and keep it full for at least 4 hours. The percolation test shall be
conducted on the day following this presoaking at least 18 hours after
presoaking is completed but prior to 30 hours after presoaking is completed.
Cover the hole during this 18-30 hour waiting period. In sandy soils with
greater than 70% sand and less than 15% clay (sand and loamy sand), after the 4
hour presoak, a percolation test may be attempted without the 18 hour waiting
period. If the percolation test results are greater than 45 minutes for a 6
inch drop in water, the test must be repeated after the 18 hour waiting
period. If the percolation test results are 45 minutes or less, the
percolation rate shall be used to size the system.
b) On
the day of conducting the percolation test, carefully fill the hole with water
to 12 inches above the gravel.
c) Allow
the water level to drop to a point 6 inches above the gravel. If the water
does not fall from 12 inches to 6 inches in 6 hours, the percolation test is
terminated and an alternate system is required.
d) Measure
the last 6 inch drop in water level at thirty minute intervals until all the
water has seeped away. Warning: Under no conditions shall measurements be
taken from water filled to the top of the hole or on water 12 inches deep in
the hole. Such results are completely invalid and will not be accepted.
Results from the last 6 inches of drop in water are the only results that will be
accepted.
5. Recording
of Results. Record results of all tests as the total minutes required for the
last 6 inches of seepage. If the last 6 inches of water has not seeped away at
the end of 6 hours, the soil must be considered unsuitable for seepage field
disposal and the appropriate statement marked on the results form. If there is
more than a 30 minute difference between the highest 2 percolation tests, use
the larger result or perform additional percolation tests.
6. Calculating
the Percolation Rate. Add the total minutes required for the last 6 inches of
water to fall from the 2 holes with the highest result and divide by 2. If the
average is less than 60 minutes, use the percolation rate of 60 minutes. If the
average is greater than 60 minutes, refer to Section 905.Appendix A:
Illustration H of this Part. Locate in the first column (Time (minutes)
required for last 6 inches of water to fall) where the highest 2 hole average
fits and use the next highest result as the percolation rate for sizing and
design. An example of this procedure is as follows: If 3 percolation tests
are conducted with results of 120 minutes, 140 minutes, and 155 minutes, the
highest 2 hole average would be (140 + 155)/2 or 147.5 minutes. Looking at
Section 905.Appendix A: Illustration H of this Part, the next highest result
would be 150 minutes. The 150 minute rate would be used to size and design the
subsurface seepage system.
7. Distribution
of Results. The results of the percolation tests shall be given to the
homeowner and shall be retained by the contractor for at least 5 years. The
percolation test data report shall be returned to the appropriate regional
office or local authority.
TEST HOLE:
|
|
TEST HOLE #1
|
TEST HOLE #2
|
TEST HOLE #3
|
|
READING #
|
TIME
(in min.)
|
WATER
LEVEL
(in inches)
|
TIME
(in min.)
|
WATER
LEVEL
(in inches)
|
TIME
(in min.)
|
WATER
LEVEL
(in inches)
|
|
|
|
1
|
0
|
|
0
|
|
0
|
|
|
2
|
30
|
|
30
|
|
30
|
|
|
3
|
60
|
|
60
|
|
60
|
|
|
4
|
90
|
|
90
|
|
90
|
|
|
5
|
120
|
|
120
|
|
120
|
|
|
6
|
150
|
|
150
|
|
150
|
|
|
7
|
180
|
|
180
|
|
180
|
|
|
8
|
210
|
|
210
|
|
210
|
|
|
9
|
240
|
|
240
|
|
240
|
|
|
10
|
270
|
|
270
|
|
270
|
|
|
11
|
300
|
|
300
|
|
300
|
|
|
12
|
330
|
|
330
|
|
330
|
|
|
13
|
360
|
|
360
|
|
360
|
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION H Subsurface Seepage System
Size Determination
Section 905.EXHIBIT A Gravel System
|
Time (minutes) required for last 6 inches of water to fall
|
FOR RESIDENTIAL USE Required Absorption Area (sq
ft)/bedroom)
|
FOR INSTITUTIONAL OR COMMERCIAL
USE Allowable application rate (GPD/sq ft) (5)
|
Recommended depth
from bottom of the trench to the limiting layer
|
|
18
- 60
|
200
|
1.0
|
|
|
90
|
210
|
.95
|
3 feet
|
|
120
|
235
|
.85
|
|
|
150
|
265
|
.75
|
|
|
180
|
290
|
.69
|
|
|
240
|
320
|
.62
|
|
|
300
|
350
|
.57
|
2 feet
|
|
360
|
385
|
.52
|
|
|
NOTE:
|
|
1.
|
Absorption area is figured as trench bottom area in
absorption trenches and bottom area in seepage beds.
|
|
2.
|
Seepage beds require 1½ times the seepage field absorption
area specified.
|
|
3.
|
Over 360 is unsuitable for subsurface seepage systems.
|
|
4.
|
Under 18 is unsuitable for subsurface seepage systems.
|
|
5.
|
Divide the required total gallons per day by this number
to get the number of square feet required
|
|
|
|
|
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION H Subsurface Seepage System
Size Determination
Section 905.EXHIBIT B Gravelless System
|
Time (minutes) required for last 6 inches of water to fall
|
FOR RESIDENTIAL USE Required Absorption Area (sq
ft)/bedroom)
|
FOR INSTITUTIONAL OR COMMERCIAL
USE Allowable application rate (GPD/sq ft) (5)
|
Recommended depth
from bottom of the trench to the limiting layer
|
|
|
8 inch
|
10 inch
|
8 inch
|
10
inch
|
|
|
18 – 60
|
100
|
70
|
2.00
|
3.00
|
|
|
90
|
105
|
70
|
1.90
|
2.86
|
3 feet
|
|
120
|
120
|
80
|
1.66
|
2.50
|
|
|
150
|
135
|
90
|
1.48
|
2.22
|
|
|
180
|
145
|
100
|
1.38
|
2.00
|
|
|
240
|
160
|
110
|
1.25
|
1.82
|
|
|
300
|
175
|
120
|
1.14
|
1.66
|
2 feet
|
|
360
|
195
|
130
|
1.0
|
1.54
|
|
|
NOTE:
|
|
1.
|
Over 360 is unsuitable for subsurface seepage systems.
|
|
2.
|
Under 18 is unsuitable for subsurface seepage systems.
|
|
3.
|
Divide the required total gallons per day by this number
to get the number of lineal feet required.
|
|
|
|
|
|
|
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX
A Illustrations and Exhibits
Section 905.ILLUSTRATION I Seepage Field Construction
Section 905.EXHIBIT A Gravel System
|
Trench
length, maximum length from point of discharge into seepage trench
|
100 feet
|
|
Trench bottom, minimum width
|
8
in.
|
|
Trench bottom, maximum width
|
36
in.
|
|
Trench bottom, minimum depth
|
18
in.
|
|
Trench bottom, maximum depth
|
36
in.
|
|
Trench bottom, slope
|
level
|
|
Distribution line, minimum diameter
|
4
in.
|
|
Distribution line, minimum earth cover
|
6
in.
|
|
Distribution line, maximum earth cover
|
24
in.
|
|
Distribution line, maximum slope
|
level
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION I Seepage Field Construction
Section 905.EXHIBIT B Size and Spacing Gravel System
|
Width of Trench
at Bottom
|
Minimum Center to
Center Spacing of Distribution Lines
|
Effective
Absorption Area Per Lineal Foot of Trench
|
|
Inches
|
Feet
|
Square Feet
|
|
8
|
6.0
|
0.67
|
|
12
|
6.0
|
1.0
|
|
18
|
6.0
|
1.5
|
|
24
|
6.0
|
2.0
|
|
30
|
7.5
|
2.5
|
|
36
|
9.0
|
3.0
|
(Source: Amended at 9 Ill. Reg.
20738, effective January 3, 1986)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION I Seepage Field Construction
Section 905.EXHIBIT C Gravelless System
|
STANDARDS FOR
SEEPAGE FIELD CONSTRUCTION (GRAVELLESS)
|
|
Trench
Length, maximum length from point of discharge into system
|
100
feet
|
|
Trench Bottom, minimum width
|
18
inches
|
|
Trench Bottom, maximum width
|
24
inches
|
|
Trench Bottom, minimum depth
|
18
inches
|
|
Trench Bottom, maximum depth
|
36
inches
|
|
Trench Bottom, slope
|
level
|
|
Distribution Line, minimum inside diameter
|
8
inches
|
|
Distribution Line, maximum inside diameter
|
10
inches
|
|
Distribution Line, minimum earth cover
|
6
inches
|
|
Distribution Line, maximum earth cover
|
24
inches
|
|
Distribution Line, maximum slope
|
level
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION I Seepage Field Construction
Section 905.EXHIBIT D Spacing − Gravelless and
Chamber Systems
SPACING FOR SEEPAGE
FIELD CONSTRUCTION
(GRAVELLESS AND CHAMBER
SYSTEMS)
|
Gravelless and
Chamber Dimensions
|
Minimum Center to
Center
Spacing of
Distribution Lines
|
|
8 Inch Inside Diameter of
Gravelless Pipe System
|
7.0 feet
|
|
10 Inch Inside Diameter of
Gravelless Pipe System
|
7.0 feet
|
|
12 Inch Wide Chamber System
|
7.0 feet
|
|
18 Inch Wide or Wider Chamber
System
|
9.0 feet
|
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION I Seepage Field Construction
Section 905.EXHIBIT E Chamber Sizing Requirements
Example: Chamber systems shall be sized on the absorption
area of the chamber that is equivalent to the bottom area of a gravel system.
The equivalent chamber absorption area per lineal foot is equal to the average
inside width of the chamber times an equivalency factor of 2.5. For example, a
chamber that has an average inside width of 1.25 feet provides an equivalent
absorption area of 3.125 square feet per lineal foot. (1.25 feet times the 2.5
equivalency factor equals 3.125 square feet per lineal foot.
To determine the length of chambers required, first
calculate the absorption area required for a gravel system based on Appendix A,
Illustration H, Exhibit A or Appendix A, Illustration M, Exhibit A. Then
divide this area by the equivalent chamber absorption area per lineal foot.
For example, if a 3 bedroom house requires 870 square feet of absorption field
and chambers 1.25 feet wide are being used, then the length of chambers needed
is 278 feet. (870 square feet divided by 3.125 square feet per lineal foot
equals 278 feet.)
Chamber systems with an average inside dimension equal to or
greater than 20 inches shall not be designed to receive an equivalent
absorption area of greater than 54 square feet per lineal foot.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION J Septic Tank Subsurface
Seepage Field
Section 905.EXHIBIT A Plan View – Gravel System
(Source: Amended at 27 Ill.
Reg. 2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION J Septic Tank Subsurface
Seepage Field
Section 905.EXHIBIT B Section View – Gravel System
(Source: Amended at 27 Ill.
Reg. 2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION J Septic Tank Subsurface
Seepage Field
Section 905.EXHIBIT C Plan View – Gravelless and
Chamber System
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION J Septic Tank Subsurface
Seepage Field
Section 905.EXHIBIT D Section View – Gravelless and
Chamber System
(Source: Amended at 37 Ill. Reg. 14994, effective August
28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT A Plan View #1 – Gravel System
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT B Section View #1 - Gravel System
NOTE: Invert of the first relief line must be at least 1
inch lower than invert of the septic tank outlets.
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT C Plan View #2 - Gravel System
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A
Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT D Section View #2 – Gravel System
** Differing
ground slopes over subsurface disposal fields may require use of various
combinations of fittings.
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT E Plan View #1 – Gravelless System
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT F Section View #1 – Gravelless
System
NOTE: Invert of the septic tank outlet
shall be at least one inch higher than the top of the gravelless pipe.
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT G Plan View #2 – Gravelless System
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION K Serial Distribution
Section 905.EXHIBIT H Section View #2 – Gravelless
System
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION L Seepage Bed
Section 905.EXHIBIT A Plan View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION L Seepage Bed
Section 905.EXHIBIT B Side View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION L Seepage Bed
Section 905.EXHIBIT C End View
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION M Soil Suitability for On-Site
Sewage Design
Section 905.EXHIBIT A Loading Rates in Square Feet Per
Bedroom and Gallons/Square Feet/Day
|
Design Group
|
Soil Group
(Most Limiting
Layer)
|
Minimum Separation To
Limiting Layer1
|
Permeability Range
|
Size of System
|
|
Residential Reg.
Absorption (ft2/bedroom)
|
Institutional/Commercial
Allowable Application Rate (GPD/ft2)
|
|
|
|
|
|
|
|
|
I
|
1A
|
NR3
|
Very
Rapid
|
NR3
|
NR3
|
|
II
|
2A;
2B; 2K
|
3
feet
|
Rapid
|
200
|
1.0
|
|
III
|
3B;
3K
|
3
feet
|
High
Moderately Rapid
|
220
|
0.91
|
|
IV
|
3A;
3L; 4D; 4K
|
3
feet
|
Low
Moderately Rapid
|
240
|
0.84
|
|
V
|
4A;;
4B; 4H; 4L; 5D
|
3
feet
|
Very
High Moderate
|
265
|
0.75
|
|
VI
|
4F;
4M; 5B
|
3
feet
|
High
Moderate
|
290
|
0.69
|
|
VII
|
4N;
5A; 5C; 5H; 5K; 6D
|
2
feet
|
Moderate
|
325
|
0.62
|
|
VIII
|
4O;
5E; 5I; 5L; 6A; 6B; 6E; 6H; 6K
|
2
feet
|
Low
Moderate
|
385
|
0.52
|
|
IX2
|
5F;
5M; 6C; 6L; 7D; 7F
|
2
feet
|
High
Moderately Slow
|
445
|
0.45
|
|
X2
|
5G;
6F; 6I; 7E; 7C; 7H
|
2
feet
|
Low
Moderately Slow
|
500
|
0.40
|
|
XI2
|
5N; 6G; 6J; 6M; 7F; 7I
|
2
feet
|
Slow
|
740
|
0.27
|
|
XII2
|
7G;
7J; 7L; 8E; 8I
|
2
feet
|
Very
Slow
|
1000
|
0.20
|
|
XII2
|
5O;
6N; 6O; 7M; 7N; 7O; 8J; 8M; 8O
|
NR3
|
NR3
|
NR3
|
0.00
|
|
XIII
|
9
|
SUBSURFACE
DISPOSAL NOT RECOMMENDED
|
NOTES:
1 Limiting
layers include fragipans; bedrock; compact glacial tills; seasonal high water
table or other soil profile features that will materially affect the absorption
of liquid from the disposal field.
2 Soils
in this group are less than the minimum percolation rate established in Appendix
A, Illustration H as suitable for subsurface seepage systems.
3 NR = Subsurface disposal system not
recommended.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION M Soil Suitability for On-Site
Sewage Design
Section 905.EXHIBIT B Key for Determining Sewage
Loading Rates (Gallons/Square Foot/Day)
|
Structure and
Parent Material
|
Single grain; Weak ;
Platy2
|
Granular, Angular and
Subangular Blocky; Prismatic
|
|
|
Loess: Outwash;
Alluvium; Lacustrine8
|
Till3
|
|
Week
|
Moderate; Strong
|
Strong
|
Moderate; Strong
|
Loess; Outwash;
Alluvium; Lacustrine8
|
Till3
|
|
Moist
Consistence
|
lo
vfr fr
|
vfr fr
|
fi
|
vfr
|
fi
|
vfr fr
|
fi
|
fr
|
fi
|
vfi
|
vfr
|
fr
|
fi
|
vfr fr
|
fi vfi
|
|
Texture
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
I
|
J
|
K
|
L
|
M
|
N
|
O
|
|
1.
|
Fragmental; Ext. or
Very gravelly sand
|
> 1.004
|
N/A5
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
|
2.
|
Sand; Loamy course sand; Loamy sand; Gravelly
sand; Coarse sand; Gravelly loamy sand
|
1.00
|
1.00
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
1.00
|
N/A
|
N/A
|
N/A
|
N/A
|
|
3.
|
Fine sand; Loamy fine sand; Coarse sandy loam
|
0.84
|
0.91
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
N/A
|
0.91
|
0.84
|
N/A
|
N/A
|
N/A
|
|
4.
|
Sandy loam; Fine sandy loam; Gravelly sandy
loam; Gravelly loam; Gravelly silt
loam
|
0.75
|
0.75
|
N.A
|
0.84
|
N/A
|
0.69
|
N/A
|
N/A
|
0.75
|
N/A
|
0.84
|
0.75
|
0.69
|
0.62
|
0.52
|
|
5.
|
Loam; Silt loam; Very fine sandy loam; Sandy
clay loam; Silt; Very fine sand; Loamy very fine sand; Gravelly clay loam
|
0.62
|
0.69
|
0.62
|
0.75
|
0.52
|
0.456
|
0.406
|
0.62
|
0.52
|
N/A
|
0.62
|
0.52
|
0.456
|
0.276
|
N/R7
|
|
6.
|
Silty clay loam (<35% c); Clay loam (<
35% c)
|
.052
|
0.52
|
0.456
|
0.62
|
0.52
|
0.408
|
0.276
|
0.52
|
0.406
|
0.276
|
0.52
|
0.456
|
0.276
|
N/R
|
N/R
|
|
7.
|
Silty clay loam (>35% c); Clay loam
(>35% c)
|
N/A
|
N/A
|
0.406
|
0.456
|
0.406
|
0.276
|
0.206
|
0.406
|
0.276
|
0.206
|
N/A
|
0.206
|
N/R
|
N/R
|
N/R
|
|
8.
|
Sandy clay; Clay
|
N/A
|
N/A
|
N/A
|
N/A
|
0.206,9
|
N/A
|
N/A
|
N/A
|
0.206,9
|
N/R
|
N/A
|
N/A
|
N/R
|
N/A
|
N/R
|
|
9.
|
Organics; Fragic; Lithic; Paralithic
|
–––SOIL PROPERTIES HAVE
VERY SEVERE LIMITATIONS; SUBSURFACE DISPOSAL NOT RECOMMENDED–––––
|
FOOTNOTES:
1 Disturbed
soils are highly variable and require special on-site investigations.
2 Moderate
or strong platy structure for the soil textures in Groups 4, 5 and 6 have a
loading rate of 0.40 g/sq.ft/d. Platy structure having firm or very firm
consistency or caused by mechanical compaction has a loading rate of 0.0 g/sq.ft/d.
3 Basal
glacial tills structured by geogenic processes have the same loading rates as
structureless glacial till.
4 This
soil group is estimated to have very rapid permeability and exceeds the maximum
established rate in Illustration H, Exhibit A.
5 N/A
means not applicable.
6 These
soil groups are estimated to have moderately slow to very slow permeability and
are less than the minimum established rate in Illustration H, Exhibit A.
7 N/R means not recommended. These soils have loading
rates considered too low for conventional subsurface disposal.
8 In some areas, lacustrine material may have physical
properties similar to glacial till and should be placed in the glacial till
columns.
9 Non-swelling (1:1 lattice) clays formed in bedrock
residuum have a loading rate of 0.27 g/sq.ft/d. Swelling (2:1 lattice) clays
are not recommended for subsurface disposal.
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION N Buried Sand Filter
Section 905.EXHIBIT A Plan View
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION N Buried Sand Filter
Section 905.EXHIBIT B Section View
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION N Buried Sand Filter
Section 905.EXHIBIT C End View
(Source: Amended at 37 Ill. Reg.
14994, effective August 28, 2013)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION O Recirculating Sand Filter
System
Section 905.EXHIBIT A System Diagram
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION O Recirculating Sand Filter
System
Section 905.EXHIBIT B Flow Splitter Detail
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section ILLUSTRATION P Recirculating Sand Filter Sizing
Chart
|
NUMBER OF BED-ROOMS
|
SEWAGE
FLOW PER DAY (Gal.)
|
SEPTIC
TANK SIZE
(Gal.)
No Garbage Grinder
|
RECIRCU-LATION
TANK SIZE (Gal.)
|
AREA
OF SAND FILTER (Sq. ft.)
|
RECOM-MENDED
SIZED OF SAND FILTER
|
NUMBER
OF UNDER-DRAINS
|
NUMBER
OF DISTRI-BUTION PIPES
|
|
|
|
1
|
200
|
750
|
500
|
100
|
10' x 10'
|
1
|
3
|
|
2
|
400
|
750
|
500
|
133
|
11' x 12'
|
1
|
3
|
|
3
|
600
|
1,000
|
500
|
200
|
14' x 14'
|
1
|
4
|
|
4
|
800
|
1,250
|
500
|
266
|
16' x 17'
|
1
|
5
|
|
5
|
1,000
|
1,500
|
500
|
333
|
18' x 19'
|
2
|
6
|
|
6
|
1,200
|
1,750
|
500
|
400
|
20' x 20'
|
2
|
6
|
|
7
|
1,400
|
2,000
|
500
|
466
|
20' x 23'
|
2
|
6
|
|
8
|
1,500
|
2,250
|
500
|
500
|
20' x 25'
|
2
|
6
|
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION Q Recirculating Tank Pump
Control
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION R Waste Stabilization Pond
Section 905.EXHIBIT A Plan View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION R Waste Stabilization Pond
Section 905.EXHIBIT B Section View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION R Waste Stabilization Pond
Section 905.EXHIBIT C Waste Stabilization Pond Surface
Area in Square Feet
|
|
With Septic Tank
|
With
Aeration
|
|
Bedrooms
|
Depth – 3 ft.
|
4ft.
|
5ft.
|
3ft.
|
4ft.
|
5ft.
|
|
1
|
533 ⅓
|
400
|
320
|
160
|
120
|
96
|
|
2
|
1067
|
800
|
640
|
320
|
240
|
192
|
|
3
|
1600
|
1200
|
960
|
480
|
360
|
288
|
|
4
|
2133
|
1600
|
1280
|
640
|
480
|
384
|
|
5
|
2667
|
2000
|
1600
|
800
|
600
|
480
|
|
6
|
3200
|
2400
|
1920
|
960
|
720
|
576
|
|
7
|
3733
|
2800
|
2240
|
1120
|
840
|
672
|
(Source: Added at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION S Chlorine Contact Tank
Section 905.EXHIBIT A Minimum Required Chlorine Contact
Tank Volume
|
AVERAGE
FLOW RATE
GPD
|
MINIMUM REQUIRED
VOLUME
GALLONS
|
|
100
|
30
|
|
200
|
30
|
|
300
|
30
|
|
400
|
30
|
|
500
|
30
|
|
600
|
30
|
|
700
|
36
|
|
800
|
42
|
|
900
|
47
|
|
1000
|
52
|
|
1100
|
57
|
|
1200
|
63
|
|
1300
|
68
|
|
1400
|
73
|
|
1500
|
78
|
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION S Chlorine Contact Tank
Section 905.EXHIBIT B Chlorine Feeder, Contact Tank,
and Sampling Port
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION T Sanitary and Concrete Vault
Privy
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION U Septic Privy Distribution
System
Section 905.EXHIBIT A Plan View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION U Septic Privy Distribution
System
Section 905.EXHIBIT B Section View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION V Sanitary Dump Station
Section 905.EXHIBIT A Section
View #1
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION V Sanitary Dump Station
Section 905.EXHIBIT B Plan
View
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION V Sanitary Dump Station
Section 905.EXHIBIT C Section
View #2
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION W Swimming Pool Backwash Water
Holding Tank
(Source: Amended at 20 Ill. Reg.
2431, effective March 15, 1996)
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX A ILLUSTRATIONS AND EXHIBITS
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION X Illinois Raised Filter Bed
Section 905.EXHIBIT A Sizing Requirements
Section 905.EXHIBIT B Batch Treatment Aeration
Tank Design Requirements
Section 905.EXHIBIT C Filter Bed Cross
Section (Side View)
Section 905.EXHIBIT D Filter Bed Cross Section
(End View)
Section 905.EXHIBIT E Sizing Requirements Using Soils
Investigation Information
|
|
RESIDENTIAL
|
NON-RESIDENTIAL
|
|
U.S./GALS
|
BEDS 4 GAL/SQ FT Minimum
SQ FT
|
SUGGESTED BED SIZE Minimum
|
BEDS
2.5 GALS/SQ FT Minimum
SQ FT
|
SUGGESTED BED SIZE Minimum
|
|
300
|
75 SQ/FT
|
7'6" X
10'0"
|
120 SQ/FT
|
10'0" X
12'0"
|
|
450
|
112.5 SQ/FT
|
10'0" X 11'3"
|
180 SQ/FT
|
12'0" X
15'0"
|
|
500
|
125 SQ/FT
|
10'0" X 12'6"
|
200 SQ/FT
|
12'0" X
17'0"
|
|
600
|
150 SQ/FT
|
12'0" X 12'6"
|
240 SQ/FT
|
15'0" X
16'0"
|
|
800
|
200 SQ/FT
|
12'0" X 16'8"
|
320 SQ/FT
|
16'0" X
20'0"
|
|
1,000
|
250 SQ/FT
|
12'0" X
21'0"
|
400 SQ/FT
|
20'0" X
20'0"
|
|
1,100
|
275 SQ/FT
|
12'6" X 22'0"
|
440 SQ/FT
|
20'0" X
22'0"
|
|
1,200
|
300 SQ/FT
|
15'0" X 20'0"
|
480 SQ/FT
|
20'0" X
24'0"
|
|
1,300
|
325 SQ/FT
|
15'0" X 22'0"
|
520 SQ/FT
|
20'0" X
26'0"
|
|
1,400
|
350 SQ/FT
|
18'0" X 20'0"
|
560 SQ/FT
|
20'0" X
28'0"
|
|
1,500
|
375 SQ/FT
|
18'0" X 21'0"
|
600 SQ/FT
|
20'0" X
30'0"
|
|
1,600
|
|
|
640 SQ/FT
|
2 @ 16'0" X 20'0"
|
|
1,700
|
|
|
680 SQ/FT
|
2 @ 17'0" X 20'0"
|
|
1,800
|
|
|
720 SQ/FT
|
2 @ 18'0" X 20'0"
|
|
2,000
|
|
|
800 SQ/FT
|
2 @ 20'0" X 20'0"
|
|
2,100
|
|
|
840 SQ/FT
|
2 @ 20'0" X 21'0"
|
|
2,200
|
|
|
880 SQ/FT
|
2 @ 20'0" X 22'0"
|
|
2,400
|
|
|
960 SQ/FT
|
2 @ 20'0" X 24'0"
|
|
2,500
|
|
|
1,000 SQ/FT
|
2 @ 20'0" X 25'0"
|
|
3,000
|
|
|
1,200 SQ/FT
|
2 @ 24'0" X
25'0"
|
|
12,000
|
|
|
4,800 SQ/FT
|
8 @ 24'0" X
25'0"
|
(Source: Old Illustration X repealed
at 9 Ill. Reg. 20738, effective January 3, 1986; new Illustration X added at 27
Ill. Reg. 3074, effective February 10, 2003)
Section
905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION X Illinois Raised Filter Bed
Section 905.EXHIBIT B Batch Treatment Aeration Tank
Design Requirements
 
(Source: Added at 27 Ill.
Reg. 3074, effective February 10, 2003)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION X Illinois Raised Filter Bed
Section 905.EXHIBIT C Filter Bed Cross Section (Side
View)
(Source: Added at 27 Ill.
Reg. 3074, effective February 10, 2003)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION X Illinois Raised Filter Bed
Section 905.EXHIBIT D Filter Bed Cross Section (End
View)
NOTE: CROWNING SHOWN FOR
TORPEDO SAND APPLIES TO MANTLE AREA ONLY
(Source: Added at 27 Ill.
Reg. 3074, effective February 10, 2003)
Section 905.APPENDIX A Illustrations and Exhibits
Section 905.ILLUSTRATION X Illinois Raised Filter Bed
Section 905.EXHIBIT E Sizing Requirements Using Soils
Investigation Information
|
Design Group
|
Percolation Rate
Equivalent
|
|
I
|
Unsuitable
|
|
II
|
10 minutes/inch
|
|
III
|
15 minutes/inch
|
|
IV
|
20 minutes/inch
|
|
V
|
23 minutes/inch
|
|
VI
|
25 minutes/inch
|
|
VII
|
30 minutes/inch
|
|
VIII
|
35 minutes/inch
|
|
IX
|
40 minutes/inch
|
|
X
|
50 minutes/inch
|
|
XI
|
70 minutes/inch
|
|
XII
|
90 minutes/inch
|
(Source: Added at 27 Ill.
Reg. 3074, effective February 10, 2003)
Section 905.APPENDIX B Contact Information for the Central and Regional Offices
| TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 905
PRIVATE SEWAGE DISPOSAL CODE
SECTION 905.APPENDIX B CONTACT INFORMATION FOR THE CENTRAL AND REGIONAL OFFICES
Section 905.APPENDIX B Contact
Information for the Central and Regional Offices
(Source: Amended at 37 Ill.
Reg. 14994, effective August 28, 2013)
|
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