Other Water Test Contaminants List

Contaminant

MCL1 or TT1 (mg/L)2

Antimony

0.006

Arsenic

0.010

Asbestos (fibers > 10 micrometers)

7 million fibers per liter (MFL)

Barium

2.0

Beryllium

0.004

Cadmium

0.005

Chromium (total)

0.1

Copper

TT5; Action level = 1.3

Cyanide (as free cyanide)

0.2

Fluoride

4.0

Lead

5

TT ; Action level =

0.015

Mercury (inorganic)

0.002

Nitrate (measured as

Nitrogen)

10.0

Nitrite (measured as

Nitrogen)

1.0

Selenium

0.05

Thallium

0.002

Contaminant

MCL1 or TT1 (mg/L)2

Chloramines (as Cl2)

MRDL=4.01

Chlorine (as Cl2)

MRDL=4.01

Chlorine dioxide (as ClO2)

MRDL=0.81

Contaminant

MCL1 or TT1 (mg/L)2

Alpha photon emitters

15 picocuries per liter

(pCi/L)

Beta photon emitters

4 millirems per year

226

Radium     and Radium

228 (combined)

5 pCi/L

Uranium

30 ug/L

Contaminant

MCL1 or TT1 (mg/L)2

Dichloromethane

0.005

1,2-Dichloropropane

0.005

Di(2-ethylhexyl) adipate

0.4

Di(2-ethylhexyl)

phthalate

0.006

Dinoseb

0.007

Dioxin (2,3,7,8-TCDD)

0.00000003

Diquat

0.02

Endothall

0.1

Endrin

0.002

Epichlorohydrin

TT4

Ethylbenzene

0.7

Ethylene dibromide

0.00005

Glyphosate

0.7

Heptachlor

0.0004

Heptachlor epoxide

0.0002

Hexachlorobenzene

0.001

Hexachlorocyclo- pentadiene

0.05

Contaminant

MCL1 or TT1 (mg/L)2

Lindane

0.0002

Methoxychlor

0.04

Oxamyl (Vydate)

0.2

Pentachlorophenol

0.001

Picloram

0.5

Polychlorinated biphenyls

(PCBs)

0.0005

Simazine

0.004

Styrene

0.1

Tetrachloroethylene

0.005

Toluene

1.0

Toxaphene

0.003

2,4,5-TP (Silvex)

0.05

1,2,4-Trichlorobenzene

0.07

1,1,1-Trichloroethane

0.2

1,1,2-Trichloroethane

0.005

Trichloroethylene

0.005

Vinyl chloride

0.002

Xylenes (total)

10