Utah Administrative Code
Topic - Environmental Quality
Title R317 - Water Quality
Rule R317-6 - Ground Water Quality Protection
Section R317-6-2 - Ground Water Quality Standards
Current through Bulletin 2024-06, March 15, 2024
2.1 The following Ground Water Quality Standards as listed in Table I are adopted for protection of ground water quality.
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TABLE 1 GROUND WATER QUALITY STANDARDS |
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Parameter |
Milligrams per liter (m g/l) unless noted ot herwise and based on analysis of filtered sample except for Mercury and organic compounds |
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PHYSICAL CHARACTERISTICS | ||
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Color (units) |
15.0 |
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Corrosivity (characteristic) |
noncorrosive |
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Odor (threshold number) |
3.0 |
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pH (units) |
6.5 -8.5 |
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INORGANIC CHEMICALS | ||
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Bromate |
0.01 |
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Chloramine (as Cl2) |
4 |
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Chlorine (as Cl2) |
4 |
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Chlorine Dioxide |
0.8 |
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Chlorite |
1.0 |
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Cyanide (free) |
0.2 |
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Fluoride |
4.0 |
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Nitrate (as N) |
10.0 |
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Nitrite (as N) |
1.0 |
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Total Nitrate/Nitrite (as N) |
10.0 |
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METALS | ||
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Antimony |
0.006 |
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Asbestos (fibers/l and >10 microns in length) |
7.0x106 |
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Arsenic |
0.05 |
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Barium |
2.0 |
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Beryllium |
0.004 |
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Cadmium |
0.005 |
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Chromium |
0.1 |
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Copper |
1.3 |
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Lead |
0.015 |
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Mercury |
0.002 |
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Selenium |
0.05 |
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Silver |
0.1 |
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Thallium |
0.002 |
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Zinc |
5.0 |
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ORGANIC CHEMICALS | ||
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Pesticides and PCBs | ||
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Alachlor |
0.002 |
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Aldicarb |
0.003 |
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Aldicarb sulfone |
0.002 |
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Aldicarb sulfoxide |
0.004 |
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Atrazine |
0.003 |
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Carbofuran |
0.04 |
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Chlordane |
0.002 |
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Dalapon (sodium salt) |
0.2 |
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Dibromochloropropane (DBCP) |
0.0002 |
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2, 4-D |
0.07 |
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Dichlorophenoxyacetic acid (2, 4-) (2,4D) |
0.07 |
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Dinoseb |
0.007 |
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Diquat |
0.02 |
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Endothall |
0.1 |
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Endrin |
0.002 |
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Ethylene Dibromide (EDB) |
0.00005 |
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Glyphosate |
0.7 |
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Heptachlor |
0.0004 |
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Heptachlor epoxide |
0.0002 |
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Lindane |
0.0002 |
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Methoxychlor |
0.04 |
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Oxamyl (Vydate) |
0.2 |
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Pentachlorophenol |
0.001 |
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Picloram |
0.5 |
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Polychlorinated Biphenyls |
0.0005 |
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Simazine |
0.004 |
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Toxaphene |
0.003 |
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2, 4, 5-TP (Silvex) |
0.05 |
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VOLATILE ORGANIC CHEMICALS | ||
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Benzene |
0.005 |
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Benzo (a) pyrene (PAH) |
0.0002 |
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Carbon tetrachloride |
0.005 |
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1, 2 - Dichloroethane |
0.005 |
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1, 1 - Dichloroethylene |
0.007 |
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1, 1, 1-Trichloroethane |
0.200 |
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Dichloromethane |
0.005 |
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Di (2-ethylhexyl) adipate |
0.4 |
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Di (2-ethylhexyl) phthalate |
0.006 |
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Dioxin (2,3,7,8-TCDD) |
0.00000003 |
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para - Dichlorobenzene |
0.075 |
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o-Dichlorobenzene |
0.6 |
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cis-1,2 dichloroethylene |
0.07 |
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trans-1,2 dichloroethylene |
0.1 |
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1,2 Dichloropropane |
0.005 |
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Ethylbenzene |
0.7 |
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Hexachlorobenzene |
0.001 |
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Hexachlorocyclopentadiene |
0.05 |
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Monochlorobenzene |
0.1 |
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Styrene |
0.1 |
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Tetrachloroethylene |
0.005 |
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Toluene |
1 |
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Trichlorobenzene (1,2,4-) |
0.07 |
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Trichloroethane (1,1,1-) |
0.2 |
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Trichloroethane (1,1,2-) |
0.005 |
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Trichloroethylene |
0.005 |
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Vinyl chloride |
0.002 |
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Xylenes (Total) |
1 0 |
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OTHER ORGANIC CHEMICALS | ||
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Five Haloacetic Acids (HAA5) |
0.06 |
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(Monochloroacetic acid) | ||
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(Dichloroacetic acid) | ||
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(Trichloroacetic acid) | ||
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(Bromoacetic acid) | ||
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(Dibromoacetic acid) | ||
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Total Trihalomethanes (TTHM) |
0.08 |
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RADIONUCLIDES | ||
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The following are the maximum contaminant levels for Radium-226 and Radium-228, and gross alpha particle radioactivity, beta particle radioactivity, photon radioactivity, and uranium concentration: |
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Combined Radium-226 and Radium-228 |
5 pCi/l |
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Gross alpha particle activity, including Radium-226 but excluding Radon and Uranium |
1 5pCi/l |
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Uranium |
0.030 mg/l |
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Beta particle and photon radioactivity The average annual concentration from man-made radionuclides of beta particle and photon radioactivity from man-made radionuclides shall not produce an annual dose equivalent to the total body or any internal organ greater than four millirem/year. Except for the radionuclides listed below, the concentration of man-made radionuclides causing four millirem total body or organ dose equivalents shall be calculated on the basis of a two liter per day drinking water intake using the 168 hour data listed in "Maximum Permissible Body Burden and Maximum Permissible Concentration Exposure", NBS Handbook 69 as amended August 1962, U.S. Department of Commerce. If two or more radionuclides are present, the sum of their annual dose equivalent to the total body or to any organ shall not exceed four millirem/year. Average annual concentrations assumed to produce a total body or organ dose of four millirem/year: | ||
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Radionuclide |
Critical Organ |
pCi per liter |
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Tritium |
T otal Body |
2 0,000 |
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Strontium-90 |
Bone Marrow |
8 |
2.2 A permit specific ground water quality standard for any pollutant not specified in Table 1 may be established by the Director at a level that will protect public health and the environment. This permit limit may be based on U.S. Environmental Protection Agency maximum contaminant level goals, health advisories, risk based contaminant levels, standards established by other regulatory agencies and other relevant information.
