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PRIMARY STANDARDS FOR INORGANIC CONTAMINANTS
Contaminant EWD Finished Water (mg/l) Maximum Contaminant Level (mg/l)

Antimony

0.0010

0.006

Arsenic

0.0025

0.01

Barium

0.0013

2

Beryllium

0.00016

0.004

Cadmium

0.00027

0.005

Chromium

0.00035

0.1

Cyanide

0.0024

0.2

Fluoride

0.064

4.0

Lead

0.00025

0.015

Mercury

0.00001

0.002

Nickel

0.00046

0.1

Nitrate

0.07 (as Nitrogen)

10 (as Nitrogen)

Nitrite

0.01 (as Nitrogen)

1 (as Nitrogen)

Selenium

0.0047

0.05

Sodium

57

160

Thallium

0.00024

0.002

SECONDARY STANDARDS

Aluminum

0.05

0.2

Chloride

85

250

Copper

0.00029

1

Fluoride

0.064

2.0

Iron

0.02

0.3

Manganese

0.001

0.05

Silver

0.000069

0.1

Sulfate

8.2

250

Zinc

0.00088

5

Color

5

15

Odor

1 (ton)

3 (threshold odor number)

pH

9.39

6.5 - 8.5

Total Dissolved Solids

180

500

Foaming Agents

0.048

0.5



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