40 CFR 141.61 - Maximum contaminant levels for organic contaminants.

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There is 1 rule appearing in the Federal Register for 40 CFR 141. View below or at eCFR (GPOAccess)
§ 141.61 Maximum contaminant levels for organic contaminants.
(a) The following maximum contaminant levels for organic contaminants apply to community and non-transient, non-community water systems.
CAS No. Contaminant MCL (mg/l)
(1) 75-01-4 Vinyl chloride 0.002
(2) 71-43-2 Benzene 0.005
(3) 56-23-5 Carbon tetrachloride 0.005
(4) 107-06-2 1,2-Dichloroethane 0.005
(5) 79-01-6 Trichloroethylene 0.005
(6) 106-46-7 para-Dichlorobenzene 0.075
(7) 75-35-4 1,1-Dichloroethylene 0.007
(8) 71-55-6 1,1,1-Trichloroethane 0.2
(9) 156-59-2 cis-1,2-Dichloroethylene 0.07
(10) 78-87-5 1,2-Dichloropropane 0.005
(11) 100-41-4 Ethylbenzene 0.7
(12) 108-90-7 Monochlorobenzene 0.1
(13) 95-50-1 o-Dichlorobenzene 0.6
(14) 100-42-5 Styrene 0.1
(15) 127-18-4 Tetrachloroethylene 0.005
(16) 108-88-3 Toluene 1
(17) 156-60-5 trans-1,2-Dichloroethylene 0.1
(18) 1330-20-7 Xylenes (total) 10
(19) 75-09-2 Dichloromethane 0.005
(20) 120-82-1 1,2,4-Trichloro- benzene .07
(21) 79-00-5 1,1,2-Trichloro- ethane .005
(b) The Administrator, pursuant to section 1412 of the Act, hereby identifies as indicated in the Table below 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 maximum contaminant level for organic contaminants identified in paragraphs (a) and (c) of this section:
BAT for Organic Contaminants Listed in § 141.61 (a) and (c)
CAS No. Contaminant GAC PTA OX
15972-60-8 Alachlor X
116-06-3 Aldicarb X
1646-88-4 Aldicarb sulfone X
1646-87-3 Aldicarb sulfoxide X
1912-24-9 Atrazine X
71-43-2 Benzene X X
50-32-8 Benzo[a]pyrene X
1563-66-2 Carbofuran X
56-23-5 Carbon tetrachloride X X
57-74-9 Chlordane X
75-99-0 Dalapon X
94-75-7 2,4-D X
103-23-1 Di (2-ethylhexyl) adipate X X
117-81-7 Di (2-ethylhexyl) phthalate X
96-12-8 Dibromochloropropane (DBCP) X X
95-50-1 o-Dichlorobenzene X X
106-46-7 para-Dichlorobenzene X X
107-06-2 1,2-Dichloroethane X X
75-35-4 1,1-Dichloroethylene X X
156-59-2 cis-1,2-Dichloroethylene X X
156-60-5 trans-1,2-Dichloroethylene X X
75-09-2 Dichloromethane X
78-87-5 1,2-Dichloropropane X X
88-85-7 Dinoseb X
85-00-7 Diquat X
145-73-3 Endothall X
72-20-8 Endrin X
100-41-4 Ethylbenzene X X
106-93-4 Ethylene Dibromide (EDB) X X
1071-83-6 Gylphosate 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
108-90-7 Monochlorobenzene X X
23135-22-0 Oxamyl (Vydate) X
87-86-5 Pentachlorophenol X
1918-02-1 Picloram X
1336-36-3 Polychlorinated biphenyls (PCB) X
122-34-9 Simazine X
100-42-5 Styrene X X
1746-01-6 2,3,7,8-TCDD (Dioxin) X
127-18-4 Tetrachloroethylene X X
108-88-3 Toluene X X
8001-35-2 Toxaphene X
93-72-1 2,4,5-TP (Silvex) X
120-82-1 1,2,4-Trichlorobenzene X X
71-55-6 1,1,1-Trichloroethane X X
79-00-5 1,1,2-Trichloroethane X X
79-01-6 Trichloroethylene X X
75-01-4 Vinyl chloride X
1330-20-7 Xylene X X
(c) The following maximum contaminant levels for synthetic organic contaminants apply to community water systems and non-transient, non-community water systems:
CAS No. Contaminant MCL (mg/l)
(1) 15972-60-8 Alachlor 0.002
(2) 116-06-3 Aldicarb 0.003
(3) 1646-87-3 Aldicarb sulfoxide 0.004
(4) 1646-87-4 Aldicarb sulfone 0.002
(5) 1912-24-9 Atrazine 0.003
(6) 1563-66-2 Carbofuran 0.04
(7) 57-74-9 Chlordane 0.002
(8) 96-12-8 Dibromochloropropane 0.0002
(9) 94-75-7 2,4-D 0.07
(10) 106-93-4 Ethylene dibromide 0.00005
(11) 76-44-8 Heptachlor 0.0004
(12) 1024-57-3 Heptachlor epoxide 0.0002
(13) 58-89-9 Lindane 0.0002
(14) 72-43-5 Methoxychlor 0.04
(15) 1336-36-3 Polychlorinated biphenyls 0.0005
(16) 87-86-5 Pentachlorophenol 0.001
(17) 8001-35-2 Toxaphene 0.003
(18) 93-72-1 2,4,5-TP 0.05
(19) 50-32-8 Benzo[a]pyrene 0.0002
(20) 75-99-0 Dalapon 0.2
(21) 103-23-1 Di(2-ethylhexyl) adipate 0.4
(22) 117-81-7 Di(2-ethylhexyl) phthalate 0.006
(23) 88-85-7 Dinoseb 0.007
(24) 85-00-7 Diquat 0.02
(25) 145-73-3 Endothall 0.1
(26) 72-20-8 Endrin 0.002
(27) 1071-53-6 Glyphosate 0.7
(28) 118-74-1 Hexacholorbenzene 0.001
(29) 77-47-4 Hexachlorocyclopentadiene 0.05
(30) 23135-22-0 Oxamyl (Vydate) 0.2
(31) 1918-02-1 Picloram 0.5
(32) 122-34-9 Simazine 0.004
(33) 1746-01-6 2,3,7,8-TCDD (Dioxin) 3×10−8
[56 FR 3593, Jan. 30, 1991, as amended at 56 FR 30280, July 1, 1991; 57 FR 31846, July 17, 1992; 59 FR 34324, July 1, 1994]

Title 40 published on 2013-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-02-26; vol. 79 # 38 - Wednesday, February 26, 2014
    1. 79 FR 10665 - National Primary Drinking Water Regulations: Minor Corrections to the Revisions to the Total Coliform Rule
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      ENVIRONMENTAL PROTECTION AGENCY
      Direct final rule.
      This rule is effective on April 28, 2014 without further notice, unless EPA receives adverse comment by March 28, 2014. If EPA receives adverse comment, we will publish a timely withdrawal in the Federal Register informing the public that the rule will not take effect. The incorporation by reference of certain material listed in the rule was approved by the Director of the Federal Register as of April 15, 2013.
      40 CFR Parts 141 and 142

Title 40 published on 2013-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 141 after this date.

  • 2014-02-26; vol. 79 # 38 - Wednesday, February 26, 2014
    1. 79 FR 10665 - National Primary Drinking Water Regulations: Minor Corrections to the Revisions to the Total Coliform Rule
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Direct final rule.
      This rule is effective on April 28, 2014 without further notice, unless EPA receives adverse comment by March 28, 2014. If EPA receives adverse comment, we will publish a timely withdrawal in the Federal Register informing the public that the rule will not take effect. The incorporation by reference of certain material listed in the rule was approved by the Director of the Federal Register as of April 15, 2013.
      40 CFR Parts 141 and 142