Standards:
Utah Ground Water Quality Protection Program

Table 1 of R317-6-2.1

Parameter CASRN GWQS Unit

Physical Characteristics

Color

15.0

Corrosivity

Noncorrosive

Odor

3.0

pH

6.5 – 8.5

Inorganic Chemicals

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

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

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

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

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

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