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USGS NAWQA Constituents - Major Ions

Parameter Name Parameter
Code		 CAS
Number

Alkalinity

39086

 

Bicarbonate

00453

 

bromide

71870

24959-67-9

Carbonate

00452

 

calcium

00915

7440-70-2

chloride

00940

16887-00-6

fluoride

00950

16984-48-8

iron

01046

7439-89-6

magnesium

00925

7439-95-4

manganese

01056

7439-96-5

potassium

00935

7440-09-7

residue, 180 degrees Celsius

70300

-

silica

00955

7631-86-9

sodium

00930

7440-23-5

sulfate

00945

14808-79-8

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 U.S. Department of the Interior, U.S. Geological Survey
 Contact for NAWQA: nawqa_whq@usgs.gov
 Maintainer: James Ulrich- julrich@usgs.gov
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