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Standards:
Utah Ground Water Quality Protection Program

Table 1 of R317-6-2.1

Physical Characteristics

Parameter CASRN GWQS Unit
Color 15.0
Corrosivity Noncorrosive
Odor 3.0
pH 6.5 – 8.5

Inorganic Chemicals

Parameter CASRN GWQS Unit
Bromate 7789-38-0 0.01 mg/l
Chloramine (as Cl2) 10599-90-3 4.0 mg/l
Chlorine (as Cl2) 7782-50-5 4.0 mg/l
Chlorine Dioxide 10049-04-4 0.8 mg/l
Chlorite 7758-19-2 1.0 mg/l
Cyanide (free) 143-33-9 0.2 mg/l
Fluoride 7681-49-4 4.0 mg/l
Nitrate (as N) 14797-55-8 10.0 mg/l
Nitrite (as N) 14797-65-0 1.0 mg/l
Total Nitrate + Nitrite (both as N) 10.0 mg/l

Metals

Parameter CASRN GWQS Unit
Antimony 7440-36-0 0.006 mg/l
Arsenic 7440-38-2 0.05 mg/l
Asbestos (> 10 microns in length) 1332-21-4 7E+06 fibers/l
Barium 7440-39-3 2.0 mg/l
Beryllium 7440-41-7 0.004 mg/l
Cadmium 7440-43-9 0.005 mg/l
Chromium (total) 7440-47-3 0.1 mg/l
Copper 7440-50-8 1.3 mg/l
Lead 7439-92-1 0.015 mg/l
Mercury (inorganic) 7487-94-7 0.002 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
Zinc 7440-66-6 5.0 mg/l

Organic Chemicals

Pesticides and PCBs

Parameter CASRN GWQS Unit
Alachlor 15972-60-8 0.002 mg/l
Aldicarb 116-06-3 0.003 mg/l
Aldicarb sulfone 1646-88-4 0.003 mg/l
Aldicarb sulfoxide 1646-87-3 0.004 mg/l
Atrazine 1912-24-9 0.003 mg/l
Carbofuran 1563-66-2 0.04 mg/l
Chlordane 57-74-9 0.002 mg/l
Dalapon (sodium salt) 75-99-0 0.2 mg/l
Dibromochloropropane (DBCP) 96-12-8 0.0002 mg/l
Dichlorophenoxyacetic acid
(2, 4 -) (2, 4 – D)
94-75-7 0.07 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
Ethylene dibromide (EDB) 106-93-4 0.00005 mg/l
Glyphosate 1071-83-6 0.7 mg/l
Heptachlor 76-4-8 0.0004 mg/l
Heptachlor epoxide 1024-57-3 0.0002 mg/l
Lindane 58-89-9 0.0002 mg/l
Methoxychlor 72-43-5 0.04 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
Toxaphene 8001-35-2 0.003 mg/l
2, 4, 5 – TP (Silvex) 93-72-1 0.05 mg/l

Volatile Organic Chemicals

Parameter CASRN GWQS Unit
Benzene 71-43-2 0.005 mg/l
Benzo(a)pyrene (PAH) 50-32-8 0.0002 mg/l
Carbon tetrachloride 56-23-5 0.005 mg/l
Dichloroethane (1,2 – ) 107-06-2 0.005 mg/l
Dichloroethylene (1,1 – ) 75-35-4 0.007 mg/l
Dichloromethane 75-09-2 0.005 mg/l
Di (2-ethylhexyl) adipate 103-23-1 0.4 mg/l
Di (2-ethylhexyl) phthalate (PAE) 117-81-7 0.006 mg/l
2,3,7,8-TCDD (Dioxin) 1746-01-6 3E-08 mg/l
Dichlorobenzene (para – ) 106-46-7 0.075 mg/l
Dichlorobenzene (o – ) 95-50-1 0.6 mg/l
Dichloroethylene (cis – 1,2 ) 156-59-2 0.07 mg/l
Dichloroethylene (trans – 1,2 ) 156-60-5 0.1 mg/l
Dichloropropane (1,2 – ) 78-87-5 0.005 mg/l
Ethylbenzene 100-41-4 0.7 mg/l
Hexachlorobenzene 118-74-1 0.001 mg/l
Hexachlorocyclopentadiene 77-47-4 0.05 mg/l
Monochlorobenzene 108-90-7 0.1 mg/l
Styrene 100-42-5 0.1 mg/l
Tetrachloroethylene 127-18-4 0.005 mg/l
Toluene 108-88-3 1 mg/l
Trichlorobenzene (1,2,4-) 120-82-1 0.07 mg/l
Trichloroethane (1,1,1-) 71-55-6 0.2 mg/l
Trichloroethane (1,1,2-) 79-00-5 0.005 mg/l
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

Other Organic Chemicals

Parameter CASRN GWQS Unit
Five Haloacetic Acids (HAA5) 0.06 mg/l
Monochloroacetic acid (MCAA) 79-11-8
Dichloroacetic acid (DCAA) 76-43-6
Trichloroacetic acid (TCAA) 76-03-9
Bromoacetic acid (MBAA) 79-08-3
Dibromoacetic acid (DBAA) 631-64-1
Total Trihalomethanes (TTHM) 0.08 mg/l
Bromoform 75-25-2
Chloroform 67-66-3
Bromodichloromethane 75-27-4
Dibromochloromethane 124-48-1

Radionuclides

Parameter CASRN GWQS Unit
Combined Radium-226 and Radium-228 7440-14-4 5 pCi/l
Gross alpha particle activity, including Radium-226 but excluding Radon and Uranium 15 pCi/l
Uranium 7440-61-1 0.030 mg/l
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:

Radionuclide Critical Organ pCi per liter
Tritium Total Body 20,000
Strontium-90 Bone Marrow 8

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