Section 327IAC8-2-5. Organic chemicals other than volatile compounds; maximum contaminant levels

   (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

(Water Pollution Control Division; 327 IAC 8-2-5; filed Sep 24, 1987, 3:00 p.m.: 11 IR 706; filed Dec 28, 1990, 5:10 p.m.: 14 IR 1009; errata filed Aug 6, 1991, 3:45 p.m.: 14 IR 2258; filed Aug 24, 1994, 8:15 a.m.: 18 IR 32; errata filed Oct 11, 1994, 2:45 p.m.: 18 IR 531; filed Aug 25, 1997, 8:00 a.m.: 21 IR 43; filed May 1, 2003, 12:00 p.m.: 26 IR 2812; filed May 7, 2010, 9:30 a.m.: 20100602-IR-327080198FRA)