TITLE 62: MINING
CHAPTER I: DEPARTMENT OF NATURAL RESOURCES
PART 200 THE ILLINOIS EXPLOSIVES ACT
SECTION 200.APPENDIX A AMERICAN TABLE OF DISTANCES FOR STORAGE OF EXPLOSIVE MATERIALS



Section 200.APPENDIX A   American Table of Distances for Storage of Explosive Materials

 

 

DISTANCES IN FEET

QUANTITY OF EXPLOSIVE MATERIALS

Inhabited Buildings

Public Highways

Class A to D

Passenger Railways − Public Highways with Traffic Volume of more than 3,000 Vehicles/Day

Separation of Magazines

Pounds

Over

Pounds

Not Over

Barricaded

Unbarricaded

Barricaded

Unbarricaded

Barricaded

Unbarricaded

Barricaded

Unbarricaded

.001

5

10

20

30

5

10

20

30

40

70

90

110

125

140

140

180

220

250

280

30

35

45

50

55

60

70

90

100

110

51

64

81

93

103

102

128

162

186

206

6

8

10

11

12

12

16

20

22

24

40

50

75

100

125

50

75

100

125

150

150

170

190

200

215

300

340

380

400

430

60

70

75

80

85

120

140

150

160

170

110

127

139

150

159

220

254

278

300

318

14

15

16

18

19

28

30

32

36

38

150

200

250

300

400

200

250

300

400

500

235

255

270

295

320

470

510

540

590

640

95

105

110

120

130

190

210

220

240

260

175

189

201

221

238

350

378

402

442

476

21

23

24

27

29

42

46

48

54

58

500

600

700

800

900

600

700

800

900

1,000

340

355

375

390

400

680

710

750

780

800

135

145

150

155

160

270

290

300

310

320

253

266

278

289

300

506

532

556

578

600

31

32

33

35

36

62

64

66

70

72

1,000

1,200

1,400

1,600

1,800

1,200

1,400

1,600

1,800

2,000

425

450

470

490

505

850

900

940

980

1,010

165

170

175

180

185

330

340

350

360

370

318

336

351

366

378

636

672

702

732

756

39

41

43

44

45

78

82

86

88

90

2,000

2,500

3,000

4,000

5,000

2,500

3,000

4,000

5,000

6,000

545

580

635

685

730

1,090

1,160

1,270

1,370

1,460

190

195

210

225

235

380

390

420

450

470

408

432

474

513

546

816

864

948

1,026

1,092

49

52

58

61

65

98

104

116

122

130

6,000

7,000

8,000

9,000

10,000

7,000

8,000

9,000

10,000

12,000

770

800

835

865

875

1,540

1,600

1,670

1,730

1,750

245

250

255

260

270

490

500

510

520

540

573

600

624

645

687

1,146

1,200

1,248

1,290

1,374

68

72

75

78

82

136

144

150

156

164

12,000

14,000

16,000

18,000

20,000

14,000

16,000

18,000

20,000

25,000

885

900

940

975

1,055

1,770

1,800

1,880

1,950

2,000

275

280

285

290

315

550

560

570

580

630

723

756

786

813

876

1,446

1,512

1,572

1,626

1,752

87

90

94

98

105

174

180

188

196

210

25,000

30,000

35,000

40,000

45,000

30,000

35,000

40,000

45,000

50,000

1,130

1,205

1,275

1,340

1,400

2,000

2,000

2,000

2,000

2,000

340

360

380

400

420

680

720

760

800

840

933

981

1,026

1,068

1,104

1,866

1,962

2,000

2,000

2,000

112

119

124

129

135

224

238

248

258

270


 

50,000

55,000

60,000

65,000

70,000

55,000

60,000

65,000

70,000

75,000

1,460

1,515

1,565

1,610

1,655

2,000

2,000

2,000

2,000

2,000

440

455

470

485

500

880

910

940

970

1,000

1,140

1,173

1,206

1,236

1,263

2,000

2,000

2,000

2,000

2,000

140

145

150

155

160

280

290

300

310

320

75,000

80,000

85,000

90,000

95,000

80,000

85,000

90,000

95,000

100,000

1,695

1,730

1,760

1,790

1,815

2,000

2,000

2,000

2,000

2,000

510

520

530

540

545

1,020

1,040

1,060

1,080

1,090

1,293

1,317

1,344

1,368

1,392

2,000

2,000

2,000

2,000

2,000

165

170

175

180

185

330

340

350

360

370

100,000

110,000

120,000

130,000

140,000

110,000

120,000

130,000

140,000

150,000

1,835

1,855

1,875

1,890

1,900

2,000

2,000

2,000

2,000

2,000

550

555

560

565

570

1,100

1,110

1,120

1,130

1,140

1,437

1,479

1,521

1,557

1,593

2,000

2,000

2,000

2,000

2,000

195

205

215

225

235

390

410

430

450

470

150,000

160,000

170,000

180,000

190,000

160,000

170,000

180,000

190,000

200,000

1,935

1,965

1,990

2,010

2,030

2,000

2,000

2,000

2,010

2,030

580

590

600

605

610

1,160

1,180

1,200

1,210

1,220

1,629

1,662

1,695

1,725

1,755

2,000

2,000

2,000

2,000

2,000

245

255

265

275

285

490

510

530

550

570

200,000

210,000

230,000

250,000

275,000

210,000

230,000

250,000

275,000

300,000

2,055

2,100

2,155

2,215

2,275

2,055

2,100

2,155

2,215

2,275

620

635

650

670

690

1,240

1,270

1,300

1,340

1,380

1,782

1,836

1,890

1,950

2,000

2,000

2,000

2,000

2,000

2,000

295

315

335

360

385

590

630

670

720

770

 

 

EXPLANATORY NOTES ESSENTIAL TO THE APPLICATION

OF THE AMERICAN TABLE OF DISTANCES FOR

STORAGE OF EXPLOSIVE MATERIALS

 

 

            NOTE 1 – "Explosive materials" means explosives, blasting agents and detonators.

 

            NOTE 2 – "Explosives" means any chemical compound, mixture or device, the primary or common purpose of which is to function by explosion. A list of explosives determined to be within the coverage of 18 U.S.C. Chapter 40, Importation, Manufacturer, Distribution and Storage of Explosive Materials is issued at least annually by the Director of the Bureau of Alcohol, Tobacco, Firearms and Explosives of the U.S. Department of Justice. For quantity and distance purposes, detonating cord of 50 grains per foot should be calculated as equivalent to 8 lbs. of high explosives per 1,000 feet. Heavier or lighter core loads should be rated proportionately.

 

            NOTE 3 – "Blasting agents" means any material or mixture consisting of fuel and oxidizer, intended for blasting, not otherwise defined as an explosive.  However, the finished product, as mixed for use or shipment, cannot be detonated by means of a No. 8 test blasting cap when unconfined.

 

            NOTE 4 – "Detonator" means any device containing any initiating or primary explosive that is used for initiating detonation. A detonator may not contain more than 10 grams of total explosives by weight, excluding ignition or delay charges. The term includes, but is not limited to, electric blasting caps of instantaneous and delay types, blasting caps for use with safety fuses, detonating cord delay connectors, and nonelectric instantaneous and delay blasting caps that use detonating cord, shock tube, or any other replacement for electric leg wires. All types of detonators in strengths through No. 8 cap should be rated at 1⅔ lbs. of explosives per 1,000 caps. For strengths higher than No. 8 cap, consult the manufacturer.

 

            NOTE 5 – "Magazine" means any building, structure or container, other than an explosives manufacturing building, approved for the storage of explosive materials.

 

            NOTE 6 – "Natural Barricade" means natural features of the ground, such as hills, or timber of sufficient density that the surrounding exposures that require protection cannot be seen from the magazine when the trees are bare of leaves.

 

            NOTE 7 – "Artificial Barricade" means an artificial mound or revetted wall of earth of a minimum thickness of 3 feet at the top of the mound or wall, or a mound or revetted wall of other material offering equivalent protection.  Artificial barricades that are vegetated shall be of sufficient slope to enable mowing.

 

            NOTE 8 – "Barricaded" means the effective screening of a building containing explosive materials from the magazine or other building, railway or highway by a natural or an artificial barrier. A straight line from the top of any sidewall of the building containing explosive materials to the eave line of any magazine or other building or to a point 12 feet above the center of a railway or highway shall pass through the barrier.

 

            NOTE 9 – "Inhabited Building" means a building regularly occupied in whole or part as a habitation for human beings, or any church, schoolhouse, railroad station, store or other structure where people are accustomed to assemble, except any building or structure occupied in connection with the manufacture, transportation, storage or use of explosive materials.

 

            NOTE 10 – "Railway" means any steam, electric or other railroad or railway that carries passengers for hire.

 

            NOTE 11 – "Highway" means any public street, public alley or public road.

 

            NOTE 12 – When two or more storage magazines are located on the same property, each magazine must comply with the minimum distances specified from inhabited buildings, railways and highways and, in addition, they should be separated from each other by not less than the distances shown for "Separation of Magazines," except that the quantity of explosive materials contained in detonator magazines shall govern in regard to the spacing of those detonator magazines from magazines containing other explosive materials.  If any two or more magazines are separated from each other by less than the specified "Separation of Magazines" distances, then those magazines, as a group, must be considered as one magazine, and the total quantity of explosive materials stored in such group must be treated as if stored in a single magazine located on the site of any magazine of the group, and must comply with the minimum of distances specified from other magazines, inhabited buildings, railways and highways.

 

            NOTE 13 – Storage in excess of 300,000 lbs. of explosive materials in one magazine is generally not required for commercial enterprises.

 

            NOTE 14 – This Table applies only to the manufacture and permanent storage of commercial explosive materials. It is not applicable to transportation of explosives or any handling or temporary storage necessary or incident to the transportation, handling or storage. It is not intended to apply to bombs, projectiles or other heavily encased explosives.

 

NOTE 15 – When a manufacturing building on an explosive materials plant site is designed to contain explosive materials, the building shall be located away from inhabited buildings, public highways and passenger railways in accordance with the American Table of Distances based on the maximum quantity of explosive materials permitted to be in the building at one time.

 

(NOTE:  The American Table of Distances for Storage of Explosive Materials and accompanying Explanatory Notes are copyrighted materials reproduced with the permission of the Institute of Makers of Explosives. The notes contained in this Appendix are meant to supplement, and not supersede, the regulations contained in this Part.  When wording differs between the regulations and these explanatory notes, the regulations shall govern for enforcement purposes.)

 

(Source:  Amended at 48 Ill. Reg. 9600, effective June 24, 2024)