Year or
Range
|
Constituent
|
Average Level
|
Minimum Level
|
Maximum Level
|
Secondary
Limit
|
Unit of Measure
|
Source of Constituent
|
|
2003
|
Bicarbonate
|
355
|
355
|
355
|
NA
|
ppm
|
Corrosion of carbonate rocks such as limestone.
|
|
2005
|
Calcium
|
44.1
|
44.1
|
44.1
|
NA
|
ppm
|
Abundant naturally occuring element.
|
|
2003
|
Chloride
|
77
|
77
|
77
|
300
|
ppm
|
Abundant naturally occuring element; used in water purification; byproduct of oil field activity
|
|
2005
|
Copper
|
0.009
|
0.009
|
0.009
|
NA
|
ppm
|
Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives.
|
|
2005
|
Iron
|
201
|
201
|
201
|
300
|
ppm
|
Erosion of natural deposits; iron or steel water delivery equipment or facilities.
|
|
2005
|
Magnesium
|
26.6
|
26.6
|
26.6
|
NA
|
ppm
|
Abundant naturally occuring element.
|
|
2005
|
Manganese
|
2.1
|
2.1
|
2.1
|
50
|
ppb
|
Abundant naturally occuring element.
|
|
2003
|
pH
|
7.6
|
7.6
|
7.6
|
7
|
units
|
Measure of corrosivity of water.
|
|
2005
|
Sodium
|
95
|
95
|
95
|
NA
|
ppm
|
Erosion of natural deposits; byproduct of oil field activity.
|
|
2003
|
Sulphate
|
49
|
49
|
49
|
300
|
ppm
|
Naturally occuring; common industrial byproduct; byproduct of oil field activity.
|
|
2003
|
Total Alkalinity
as CaCO3
|
291
|
291
|
291
|
NA
|
ppm
|
Naturally occuring soluble mineral salts.
|
|
2001
|
Total Dissolved
Solids
|
478
|
478
|
478
|
1000
|
ppm
|
Total dissolved mineral constituents in water.
|
|
2005
|
Total Hardness as
CaCO3
|
219
|
219
|
219
|
NA
|
ppm
|
Naturally occuring calcium.
|
|
2005
|
Zinc
|
46
|
46
|
46
|
5
|
ppb
|
Moderately abundant naturally occuring element; used in the metal industry.
|
