Indiana Administrative Code
Title 327 - WATER POLLUTION CONTROL DIVISION
Article 8 - PUBLIC WATER SUPPLY
Rule 2 - Drinking Water Standards
Section 2-5 - Organic chemicals other than volatile compounds; maximum contaminant levels
Universal Citation: 327 IN Admin Code 2-5
Current through September 18, 2024
Authority: IC 13-13-5; IC 13-14-8-7; IC 13-14-9; IC 13-18-3; IC 13-18-16
Affected: IC 13-18
Sec. 5.
(a) The MCLs for the following synthetic organic chemicals apply to all CWSs and NTNCWSs:
| CAS No. | Contaminant | MCL (mg/L) |
| 15972-60-8 | Alachlor | 0.002 |
| 1912-24-9 | Atrazine | 0.003 |
| 50-32-8 | Benzo(a)pyrene | 0.0002 |
| 1563-66-2 | Carbofuran | 0.04 |
| 57-74-9 | Chlordane | 0.002 |
| 75-99-0 | Dalapon | 0.2 |
| 96-12-8 | 1,2-dibromo-3-chloropropane (DBCP) | 0.0002 |
| 103-23-1 | Di(2-ethylhexyl)adipate | 0.4 |
| 117-81-7 | Di(2-ethylhexyl)phthalate | 0.006 |
| 88-85-7 | Dinoseb | 0.007 |
| 85-00-7 | Diquat | 0.02 |
| 94-75-7 | 2,4-D | 0.07 |
| 145-73-3 | Endothall | 0.1 |
| 72-20-8 | Endrin | 0.002 |
| 106-93-4 | Ethylene dibromide | 0.00005 |
| 1071-53-6 | Glyphosate | 0.7 |
| 76-44-8 | Heptachlor | 0.0004 |
| 1024-57-3 | Heptachlor epoxide | 0.0002 |
| 118-74-1 | Hexachlorobenzene | 0.001 |
| 77-47-4 | Hexachlorocyclopentadiene | 0.05 |
| 58-89-9 | Lindane | 0.0002 |
| 72-43-5 | Methoxychlor | 0.04 |
| 23135-22-0 | Oxamyl (vydate) | 0.2 |
| 1918-02-1 | Picloram | 0.5 |
| 1336-36-3 | Polychlorinated biphenyls | 0.0005 |
| 87-86-5 | Pentachlorophenol | 0.001 |
| 122-34-9 | Simazine | 0.004 |
| 8001-35-2 | Toxaphene | 0.003 |
| 1746-01-6 | 2,3,7,8-TCDD (dioxin) | 3 × 10-8 |
| 93-72-1 | 2,4,5-TP | 0.05 |
(b) For the synthetic organic chemicals listed in this section other than TTHM:
(1) monitoring frequency is specified in
section 5.1 of this rule; and
(2)
analytical methods are specified in section 5.2 of this rule.
(c) The commissioner hereby identifies, as indicated in the following table, granular activated carbon (GAC), packed tower aeration (PTA), or oxidation (OX) as the best technology, treatment technique, or other means available for achieving compliance with the MCL for synthetic organic contaminants identified in subsection (a):
| BAT for Synthetic Organic Contaminants Listed in Subsection (a) | ||||
| CAS No. | Contaminant | GAC | PTA | OX |
| 15972-60-8 | Alachlor | X | ||
| 1912-24-9 | Atrazine | X | ||
| 50-32-8 | Benzo(a)pyrene | X | ||
| 1563-66-2 | Carbofuran | X | ||
| 57-74-9 | Chlordane | X | ||
| 94-75-7 | 2,4-D | X | ||
| 75-99-0 | Dalapon | X | ||
| 96-12-8 | 1,2-dibromo-3-chloropropane (DBCP) | X | X | |
| 103-23-1 | Di(2-ethylhexyl)adipate | X | X | |
| 117-81-7 | Di(2-ethylhexyl)phthalate | X | ||
| 88-85-7 | Dinoseb | X | ||
| 85-00-7 | Diquat | X | ||
| 145-73-3 | Endothall | X | ||
| 72-20-8 | Endrin | X | ||
| 106-93-4 | Ethylene dibromide (EDB) | X | X | |
| 1071-53-6 | Glyphosate | X | ||
| 76-44-8 | Heptachlor | X | ||
| 1024-57-3 | Heptachlor epoxide | X | ||
| 118-74-1 | Hexachlorobenzene | X | ||
| 77-47-3 | Hexachlorocyclopentadiene | X | X | |
| 58-89-9 | Lindane | X | ||
| 72-43-5 | Methoxychlor | X | ||
| 23135-22-0 | Oxamyl (vydate) | X | ||
| 1918-02-1 | Picloram | X | ||
| 1336-36-3 | Polychlorinated biphenyls (PCBs) | X | ||
| 87-86-5 | Pentachlorophenol | X | ||
| 93-72-1 | 2,4,5-TP (silvex) | X | ||
| 122-34-9 | Simazine | X | ||
| 1746-01-6 | 2,3,7,8-TCDD (dioxin) | X | ||
| 8001-35-2 | Toxaphene | X | X | |
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