South Dakota Administrative Rules › Title 74 - Department of Environment And Natural Resources › Article 74:54 - Groundwater quality › Chapter 74:54:01 - Groundwater quality standards › Section 74:54:01:04 - Standards for groundwater of 10,000 mg/L TDS concentration or less

Current through Register Vol. 51, page 10, July 15, 2024
The following standards are the allowable pH range and maximum
	 allowable concentration in groundwater of 10,000 mg/L TDS concentration or less
	 for the contaminants specified unless the ambient condition exceeds the
	 standards. Regardless of whether there is one contaminant or more than one
	 contaminant present in groundwater, when the ambient pH or concentration of any
	 water contaminant exceeds the standard specified in this section, the ambient
	 pH or concentration is the allowable limit, provided that the discharge at such
	 concentrations will not result for the present or the reasonably foreseeable
	 future in concentrations at any place of groundwater withdrawal in excess of
	 the standards in this section.
These standards apply to the dissolved portion of the contaminants
	 specified, with the exception of mercury and the organic compounds, using the
	 definition of "dissolved" given in the publication Methods and Guidance for the
	 Analysis of Water, Version 2, June 1999. The standards for mercury and the
	 organic compounds apply to the total unfiltered concentrations of the
	 contaminants.
Groundwater must meet the standards listed as follows unless otherwise
	 provided by chapters 74:54:01 and 74:54:02:
TABLE ONE
Human Health Standards
CONTAMINANT
CAS NUMBER
CONCENTRATION
ORGANICS
Alachlor
15972-60-8
0.002 mg/L
Aldicarb
116-06-3
0.003 mg/L
Aldicarb Sulfone
1646-87-4
0.002 mg/L
Aldicarb Sulfoxide
1646-87-3
0.004 mg/L
Atrazine
1912-24-9
0.003 mg/L
Benzene
71-43-2
0.005 mg/L
Benzo[a]pyrene
50-32-8
0.0002 mg/L
Cabofuran
1563-66-2
0.04 mg/L
Carbon tetrachloride
56-23-5
0.005 mg/L
Chlordane
57-74-9
0.002 mg/L
2,4-D (2,4-dichlorophenoxyacetic acid)
94-75-7
0.07 mg/L
Dalapon (sodium salt)
75-99-0
0.2 mg/L
Di(2-ethylhexyl)adipate
103-23-1
0.4 mg/L
Di(2-ethylhexyl)phthalate
117-81-7
0.006 mg/L
Dibromochloropropane (DBCP)
96-12-8
0.0002 mg/L
o-Dichlorobenzene
95-50-1
0.6 mg/L
p-Dichlorobenzene
106-46-7
0.075 mg/L
1,2-Dichloroethane
107-06-2
0.005 mg/L
1,1-Dichloroethylene
75-35-4
0.007 mg/L
cis 1,2-Dichloroethylene
156-59-2
0.07 mg/L
trans 1,2-Dichloroethylene
156-60-5
0.1 mg/L
Dichloromethane (Methylene chloride)
75-09-2
0.005 mg/L
1,2 Dichloropropane
78-87-5
0.005 mg/L
Dinoseb
88-85-7
0.007 mg/L
Diquat
85-00-7
0.02 mg/L
Endothall
145-73-3
0.1 mg/L
Endrin
72-20-8
0.002 mg/L
Ethylbenzene
100-41-4
0.7 mg/L
Ethylene dibromide (EDB)
106-93-4
0.00005 mg/L
Glyphosate
1071-53-6
0.7 mg/L
Heptachlor
76-44-8
0.0004 mg/L
Heptachlor epoxide
1024-57-3
0.0002 mg/L
Hexachlorobenzene
188-74-1
0.001 mg/L
Hexachlorocyclopentadiene
77-47-4
0.05 mg/L
Total Haloacetic Acids, including:
Dichloroacetic acid
76-43-6
Monochloroacetic acid
79-11-8
0.06 mg/L
Trichloroacetic acid
76-03-9
Lindane
58-89-9
0.0002 mg/L
Methoxychlor
72-43-5
0.04 mg/L
Monochlorobenzene
108-90-7
0.1 mg/L
Oxamyl (Vydate)
23135-22-0
0.2 mg/L
Pentachlorophenol
87-86-5
0.001 mg/L
Picloram
1918-02-1
0.5 mg/L
Polychlorinated biphenyls (PCBs)
1336-36-3
0.0005 mg/L
Simazine
122-34-9
0.004 mg/L
Styrene
100-42-5
0.1 mg/L
2,3,7,8-TCDD (Dioxin)
1746-01-6
0.00000003 mg/L
(3 x 10-8 mg/L)
Tetrachloroethylene (PCE)
127-18-4
0.005 mg/L
Toluene
108-88-3
1 mg/L
Total petroleum hydrocarbons
NA
10 mg/L1
Toxaphene
8001-35-2
0.003 mg/L
2,4,5-TP Silvex
93-72-1
0.05 mg/L
1,2,4-Trichlorobenzene
120-82-1
0.07 mg/L
1,1,1-Trichloroethane
71-55-6
0.2 mg/L
1,1,2-Trichloroethane
79-00-5
0.005 mg/L
Total trihalomethanes, including:
bromodichloromethane,
75-27-4
bromoform (tribromomethane),
75-25-2
0.08 mg/L
chloroform (trichloromethane),
67-66-3
and dibromochloromethane
124-48-1
(chlorodibromomethane)
Trichloroethylene
79-01-6
0.005 mg/L
Vinyl chloride
75-01-4
0.002 mg/L
Xylenes (total)
1330-20-7
10 mg/L
INORGANICS
Antimony
7440-36-0
0.006 mg/L
Arsenic
7440-38-2
0.01 mg/L2
Asbestos
1332-21-4
7 MFL (longer than 10 micrometers)
Barium
7440-39-3
2 mg/L
Beryllium
7440-41-7
0.004 mg/L
Bromate
7789-38-0
0.01 mg/L
Cadmium (Cd)
7440-43-9
0.005 mg/L
Chlorite
7758-19-2
1 mg/L
Chromium
7440-47-3
0.1 mg/L
Copper (Cu)
7440-50-8
1.0 mg/L
Cyanide (CN) as free cyanide
143-33-9
0.2 mg/L
Cyanine (CN) as weak acid dissociable
143-33-9
0.75 mg/L
Fluoride (F)
7681-49-4
4 mg/L
Lead (Pb)
7439-92-1
0.015 mg/L
Mercury (Hg)
7487-94-7
0.002 mg/L
Nitrate (as N)
14797-55-8
10 mg/L
Nitrite (as N)
14797-65-0
1 mg/L
Nitrate + Nitrite (both as N)
NA
10 mg/L
Selenium
7782-49-2
0.05 mg/L
Silver
7440-22-4
0.1 mg/L
Thallium
7440-28-0
0.002 mg/L
RADIONUCLIDES
Beta particle and photon radioactivity (from man-made
				  radionuclides)
NA
4 mrem/yr
Gross alpha particle activity, excluding radon and
				  uranium
NA
15 pCi/l
Radium 226 & radium 228 combined
7440-14-4
5 pCi/l
Radon
10043-92-2
300 pCi/l
Uranium
7440-61-1
0.03 mg/L
MICROBIOLOGY
Fecal coliform bacteria
NA
Less than 2.2 organisms per 100 mL (MPN)
1
If Total Petroleum
	 Hydrocarbons is between 0.1 mg/L and 10 mg/L, and is within the radius of
	 influence of a well or within Zone A of a delineated wellhead protection area,
	 clean up must continue until 0.1 mg/L is met. Total petroleum hydrocarbons must
	 be analyzed using the California Department of Health Services Method published
	 in "Leaking Underground Fuel Tank Field Manual: Guidelines for Site Assessment,
	 Cleanup, and Underground Storage Tank Closure," October 1989, or its
	 equivalent.
2
Ground Water Discharge Plans
	 with permitted allowable limits for arsenic issued before the effective date of
	 these ground water quality standard revisions are exempt.
TABLE TWO
Other standards that are not applicable to groundwater receiving
	 discharge from publicly owned treatment works.
CONTAMINANT
CAS NUMBER
CONCENTRATION
Chloride
7647-14-5
250 mg/L
pH
NA
6.5-8.5
Sulfate
7757-82-6
500 mg/L
TDS
NA
1000 mg/L
If the standards in either table one or table two are exceeded by
	 ambient groundwater quality, the ambient water quality becomes the maximum
	 allowable limit, as determined in §
									74:54:02:18, for an approved
	 groundwater discharge plan.
General Authority:
SDCL 34A-2-11.
Law Implemented:
SDCL 34A-2-10,
		34A-2-11.
Methods and Guidance for the Analysis of Water, Version
		2
, June 1999; NTIS Order No. PB99-500209, published by the U.S.
		Environmental Protection Agency. Copies are available on CD-ROM from the
		National Technical Information Service (NTIS), 5285 Port Royal Road,
		Springfield, Virginia 22161, 703-605-6000. The cost is $85.
"Leaking Underground Fuel Tank Field Manual: Guidelines for Site
		Assessment, Cleanup, and Underground Storage Tank Closure," October 1989, State
		Water Resources Control Board, P.O. Box 100, Sacramento, CA, 95812,
		916-341-5250. Copies of the document are available online at:
www.swrcb.ca.gov/general/publications/index.html
.
Organic chemicals, § 74:04:05:06.
Radionuclides, § 74:04:05:17.
40 C.F.R. §
												141.11 (40 FR 59570, December 24, 1975, as
		amended at 45 FR 57342, August 27, 1980; 47 FR 10998, March 12, 1982; 51 FR
		11410, April 2, 1986; 56 FR 30274, July 1, 1991; 56 FR 32113, July 15, 1991; 60
		FR 33932, June 29, 1995; 65 FR 26022, May 4, 2000; 66 FR 7061, January 22,
		2001).
40 C.F.R. §
												141.12 (63 FR 69463, December 16, 1998, as
		amended at 66 FR 3776, January 16, 2001).
40 C.F.R. §
												141.24 (40 FR 59570, December 24, 1975, as
		amended at 44 FR 68641, November 29, 1979; 45 FR 57345, August 27, 1980; 47 FR
		10998, March 12, 1982; 52 FR 25712, July 8, 1987; 53 FR 5147, February 19,
		1988; 53 FR 25110, July 1988; 56 FR 3583, January 30, 1991; 56 FR 30277, July
		1, 1991; 57 FR 22178, May 27, 1992; 57 FR 31841, July 17, 1992; 59 FR 34323,
		July 1, 1994; 59 FR 62468, December 5, 1994; 60 FR 34085, June 29, 1995; 64 FR
		67464, December 1, 1999; 65 FR 26022, May 4, 2000; 67 FR 65250, October 23,
		2002; 67 FR 65898, October 29, 2002).
40 C.F.R. §
												141.60 (56 FR 3593, January 30, 1991, as
		amended at 57 FR 31846, July 17, 1992; 59 FR 34324, July 1, 1994; 66 FR 7063,
		January 22, 2001).
40 C.F.R. §
												141.61 (56 FR 3593, January 30, 1991, as
		amended at 56 FR 30280, July 1, 1991; 57 FR 31846, July 17, 1992; 59 FR 34324,
		July 1, 1994).
40 C.F.R. §
												141.62 (56 FR 3594, January 30, 1991, as
		amended at 56 FR 30280, July 1, 1991; 57 FR 31847, July 17, 1992; 59 FR 34325,
		July 1, 1994; 60 FR 33932, June 29, 1995; 66 FR 7063, January 22, 2001; 68 FR
		14506, March 25, 2003).
40 C.F.R. §
												141.63 (54 FR 27566, June 29, 1989; 55 FR
		25064, June 19, 1990, as amended at 65 FR 26022, May 4, 2000).
40 C.F.R. §
												141.64 (FR 69465, December 16, 1998, as
		amended at 66 FR 3776, January 16, 2001).
40 C.F.R. §
												141.66 (65 FR 76748, December 7,
		2000).
40 C.F.R. §
												143.3 (44 FR 42198, July 19, 1979, as amended
		at 51 FR 11412, April 2, 1986; 56 FR 3597, January 30,
		1991).