Section 611.640  Definitions

 

The following terms are defined for use in this Subpart O only.  Additional definitions are located in Section 611.102.

 

            "Old MCL" means an MCL in Section 611.310.  These include the MCLs identified as "additional state requirements".  "Old MCLs" include the Section 611.310 MCLs for the following contaminants:

 

            Aldrin

 

            2,4-D

 

            DDT

 

            Dieldrin

 

            Heptachlor

 

            Heptachlor epoxide

 

            BOARD NOTE:  2,4-D, heptachlor, and heptachlor epoxide are also "Phase II SOCs".  The additional state requirements of Section 611.310 impose a more stringent "old MCL" for each of these compounds than that imposed on them as Phase II SOCs by Section 611.311.  However, the requirements for sampling and monitoring for these compounds as Phase II SOCs and the consequences of their detection and violation of their revised MCLs is more stringent as Phase II SOCs.

 

            "Phase II SOCs" means the following:

 

            Alachlor

 

            Atrazine

 

            Carbofuran

 

            Chlordane

 

            Dibromochloropropane

 

Ethylene dibromide

 

            Heptachlor

 

            Heptachlor epoxide

 

            Lindane

 

            Methoxychlor

 

            Polychlorinated biphenyls

 

            Toxaphene

 

            2,4-D

 

            2,4,5-TP

 

            BOARD NOTE:  These are organic contaminants regulated at 40 CFR 141.61(c)(1) through (c)(18) (2016).  The MCLs for these contaminants are located at Section 611.311.  More stringent MCLs for heptachlor, heptachlor epoxide, and 2,4-D are found as "additional state requirements" in Section 611.310.

 

            "Phase IIB SOCs" means the following:

 

            Aldicarb

 

            Aldicarb Sulfone

 

            Aldicarb Sulfoxide

 

            Pentachlorophenol

 

            BOARD NOTE:  These are organic contaminants regulated at 40 CFR 141.61(c)(1) through (c)(18) (2016).  The MCLs for these contaminants are located at Section 611.311.  See the Board note appended to Section 611.311(c) for information relating to implementation of requirements relating to aldicarb, aldicarb sulfone, and aldicarb sulfoxide.

 

            "Phase V SOCs" means the following:

 

            Benzo(a) pyrene

 

            Dalapon

 

            Di(2-ethylhexyl)adipate

 

            Di(2-ethylhexyl)phthalate

 

            Dinoseb

 

            Diquat

 

            Endothall

 

            Endrin

 

            Glyphosate

 

            Hexachlorobenzene

 

            Hexachlorocyclopentadiene

 

            Oxamyl

 

            Picloram

 

            Simazine

 

            2,3,7,8-TCDD

 

            BOARD NOTE:  These are organic contaminants regulated at 40 CFR 141.61(c)(19) through (c)(33) (2016).  The MCLs for these contaminants are located at Section 611.311.

 

            "Phase I VOCs" means the following:

 

            Benzene

 

            Carbon tetrachloride

 

            p-Dichlorobenzene

 

            1,2-Dichloroethane

 

            1,1-Dichloroethylene

 

            1,1,1-Trichloroethane

 

            Trichloroethylene

 

            Vinyl chloride

 

            BOARD NOTE:  These are the organic contaminants regulated at 40 CFR 141.61(a)(1) through (a)(8) (2016).  The MCLs for these contaminants are located at Section 611.311(a).

 

            "Phase II VOCs" means the following:

 

            o-Dichlorobenzene

 

            cis-1,2-Dichloroethylene

 

            trans-1,2-Dichloroethylene

 

            1,2-Dichloropropane

 

            Ethylbenzene

 

            Monochlorobenzene

 

            Styrene

 

            Tetrachloroethylene

 

            Toluene

 

            Xylenes (total)

 

            BOARD NOTE:  These are organic contaminants regulated at 40 CFR 141.61(a)(9) through (a)(18) (2016).  The MCLs for these contaminants are in Section 611.311(a).

 

            "Phase V VOCs" means the following:

 

            Dichloromethane

 

            1,2,4-Trichlorobenzene

 

            1,1,2-Trichloroethane

 

            BOARD NOTE:  These are the organic contaminants regulated at 40 CFR 141.61(a)(19) through (a)(21) (2016).  The MCLs for these contaminants are located at Section 611.311(a).

 

            "Revised MCL" means an MCL in Section 611.311.  This term includes MCLs for Phase I VOCs, Phase II VOCs, Phase V VOCs, Phase II SOCs, Phase IIB SOCs, and Phase V SOCs.

 

(Source:  Amended at 42 Ill. Reg. 1140, effective January 4, 2018)