Wisconsin Administrative Code › Department of Natural Resources › NR 100-199 - Environmental Protection General › Chapter NR 140 - Groundwater Quality › Subchapter II - Groundwater Quality Standards › Section NR 140.10 - Public health related groundwater standards

Current through June 24, 2024
The groundwater quality standards for substances of public
					 health concern are listed in Table 1.
Note:
For all substances that have
					 carcinogenic, mutagenic or teratogenic properties or interactive effects, the
					 preventive action limit is 10% of the enforcement standard. The preventive
					 action limit is 20% of the enforcement standard for all other substances that
					 are of public health concern. Enforcement standards and preventive action
					 limits for additional substances will be added to Table I as recommendations
					 are developed pursuant to ss.
					 160.07,
					 160.13 and
					 160.15, Stats.
Table 1
Public Health Groundwater Quality
					 Standards
Substance1
Enforcement Standard (micrograms per liter
								  - except as noted)
Preventive Action Limit (micrograms per
								  liter - except as noted)
Acetochlor
7
0.7
Acetochlor ethane sulfonic acid + oxanilic acid
								  (Acetochlor - ESA + OXA)
230
46
Acetone
9 milligrams/liter (mg/1)
1.8 mg/1
Alachlor
2
0.2
Alachlor ethane sulfonic acid
20
4
(Alachlor - ESA)
Aldicarb
10
2
Aluminum
200
40
Ammonia (as N)
9.7 mg/l
0.97 mg/l
Anthracene
3000
600
Antimony
6
1.2
Arsenic
10
1
Asbestos
7 million fibers per liter (MFL)
0.7 MFL
Atrazine, total chlorinated residues
32
0.32
Bacteria,
E. coli
0
0
Barium
2 mg/l
0.4 mg/l
Bentazon
300
60
Benzene
5
0.5
Benzo(b)fluoranthene
0.2
0.02
Benzo(a)pyrene
0.2
0.02
Beryllium
4
0.4
Boron
1000
200
Bromodichloromethane
0.6
0.06
Bromoform
4.4
0.44
Bromomethane
10
1
Butylate
400
80
Cadmium
5
0.5
Carbaryl
40
4
Carbofuran
40
8
Carbon disulfide
1000
200
Carbon tetrachloride
5
0.5
Chloramben
150
30
Chlordane
2
0.2
Chlorodifluoromethane
7 mg/l
0.7 mg/l
Chloroethane
400
80
Chloroform
6
0.6
Chlorpyrifos
2
0.4
Chloromethane
30
3
Chromium (total)
100
10
Chrysene
0.2
0.02
Cobalt
40
8
Copper
1300
130
Cyanazine
1
0.1
Cyanide, free3
200
40
Dacthal
70
14
1,2-Dibromoethane (EDB)
0.05
0.005
Dibromochloromethane
60
6
1,2-Dibromo-3-chloropropane (DBCP)
0.2
0.02
Dibutyl phthalate
1000
100
Dicamba
300
60
1,2-Dichlorobenzene
600
60
1,3-Dichlorobenzene
600
120
1,4-Dichlorobenzene
75
15
Dichlorodifluoromethane
1000
200
1,1-Dichloroethane
850
85
1,2-Dichloroethane
5
0.5
1,1-Dichloroethylene
7
0.7
1,2-Dichloroethylene (cis)
70
7
1,2-Dichloroethylene (trans)
100
20
2,4-Dichlorophenoxyacetic Acid (2,4-D)
70
7
1,2-Dichloropropane
5
0.5
1,3-Dichloropropene (cis/trans)
0.4
0.04
Di (2-ethylhexyl) phthalate
6
0.6
Dimethenamid/Dimethenamid-P
50
5
Dimethoate
2
0.4
2,4-Dinitrotoluene
0.05
0.005
2,6-Dinitrotoluene
0.05
0.005
Dinitrotoluene, Total
								  Residues4
0.05
0.005
Dinoseb
7
1.4
1,4-Dioxane
3
0.3
Dioxin (2, 3, 7, 8-TCDD)
0.00003
0.000003
Endrin
2
0.4
EPTC
250
50
Ethylbenzene
700
140
Ethyl ether
1000
100
Ethylene glycol
14 mg/l
2.8 mg/l
Fluoranthene
400
80
Fluorene
400
80
Fluoride
4 mg/l
0.8 mg/l
Fluorotrichloromethane
3490
698
Formaldehyde
1000
100
Heptachlor
0.4
0.04
Heptachlor epoxide
0.2
0.02
Hexachlorobenzene
1
0.1
N
-Hexane
600
120
Hydrogen sulfide
30
6
Lead
15
1.5
Lindane
0.2
0.02
Manganese
300
60
Mercury
2
0.2
Methanol
5000
1000
Methoxychlor
40
4
Methylene chloride
5
0.5
Methyl ethyl ketone (MEK)
4 mg/l
0.8 mg/l
Methyl isobutyl ketone (MIBK)
500
50
Methyl tert-butyl ether (MTBE)
60
12
Metolachlor/s-Metolachlor
100
10
Metolachlor ethane sulfonic acid + oxanilic acid
								  (Metolachlor - ESA + OXA)
1.3 mg/l
0.26 mg/l
Metribuzin
70
14
Molybdenum
40
8
Monochlorobenzene
100
20
Naphthalene
100
10
Nickel
100
20
Nitrate (as N)
10 mg/l
2 mg/l
Nitrate + Nitrite (as N)
10 mg/l
2 mg/l
Nitrite (as N)
1 mg/1
0.2 mg/l
N
-Nitrosodiphenylamine
7
0.7
Pentachlorophenol (PCP)
1
0.1
Perchlorate
1
0.l
Phenol
2 mg/l
0.4 mg/l
Picloram
500
100
Polychlorinated biphenyls (PCBs)
0.03
0.003
Prometon
100
20
Propazine
10
2
Pyrene
250
50
Pyridine
10
2
Selenium
50
10
Silver
50
10
Simazine
4
0.4
Styrene
100
10
Tertiary Butyl Alcohol (TBA)
12
1.2
1,1,1,2-Tetrachloroethane
70
7
1,1,2,2-Tetrachloroethane
0.2
0.02
Tetrachloroethylene
5
0.5
Tetrahydrofuran
50
10
Thallium
2
0.4
Toluene
800
160
Toxaphene
3
0.3
1,2,4-Trichlorobenzene
70
14
1,1,1-Trichloroethane
200
40
1,1,2-Trichloroethane
5
0.5
Trichloroethylene (TCE)
5
0.5
2,4,5-Trichlorophenoxy-propionic acid
								  (2,4,5-TP)
50
5
1,2,3-Trichloropropane
60
12
Trifluralin
7.5
0.75
Trimethylbenzenes( 1,2,4- and 1,3,5-
								  combined)
480
96
Vanadium
30
6
Vinyl chloride
0.2
0.02
Xylene5
2 mg/l
0.4 mg/l
1 Appendix I contains Chemical
					 Abstract Service (CAS) registry numbers, common synonyms and trade names for
					 most substances listed in Table 1.
2 Total chlorinated atrazine
					 residues includes parent compound and the following metabolites of health
					 concern: 2-chloro-4-amino-6-isopropylamino-s-triazine (formerly
					 deethylatrazine), 2-chloro-4-amino-6-ethylamino-s-triazine (formerly
					 deisopropylatrazine) and 2-chloro-4,6-diamino-s-triazine (formerly
					 diaminoa-trazine).
3 "Cyanide, free" refers to the
					 simple cyanides (HCN, CN-) and /or readily dissociable metal-cyanide complexes.
					 Free cyanide is regulatorily equivalent to cyanide quantified by approved
					 analytical methods for "amenable cyanide" or "available cyanide".
4 Dinitrotoluene, Total
					 Residues includes the dinitrotoluene (DNT) isomers: 2,3-DNT, 2,4-DNT, 2,5-DNT,
					 2,6-DNT, 3,4-DNT and 3,5-DNT.
5 Xylene includes meta-, ortho-, and
					 para-xylene combined.
Note:
Consistent with the Department of
					 Health Services' recommendation for the NR 140 ammonia standard, the department
					 will use total ammonia, which is the sum of ionized ammonia and un-ionized
					 ammonia in groundwater, in applying groundwater ammonia
					 standards.
Acronyms in common use for oxanilic acid (for the
						pesticide metabolites acetochlor oxanilic acid and metolachlor oxanilic acid in
						Table 1 above) include both "OA" and "OXA."