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Drinking Water Methods

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Drinking Water:

Fields of Accreditation

Analyte

Method*

Alkalinity SM 2320B

Aluminum 

EPA 200.7

Arsenic

EPA 200.9

Barium

EPA 200.7

Cadmium

EPA 200.7

Calcium

EPA 200.7

Chloride SM 4500 Cl-E
Chromium EPA 200.7

Copper

EPA 200.7

Corrosivity (langlier index) SM 2330B

Iron

EPA 200.7
Lead EPA 200.9
Magnesium

EPA 200.7

Manganese EPA 200.7
Nickel

EPA 200.7

Nitrate+Nitrite (Total)

EPA 353.2

pH EPA 150.1
Sodium EPA 200.7
Sulfate-Sulfur SM 4500 SO4-E
Zinc EPA 200.7
Total Dissolved Solids SM 2540C
Total Hardness (as CaCO3) SM 2340B
Total Coliform (Enumeration) SM 9223B
E. Coli (Enumeration) SM 9223B

*EPA:  Environmental Protection Agency

 SM:  Standard Methods for the Examination of Water and Waste Water