Wawater.com
What is hard water
WEBHardness is a measure of the magnesium, calcium, and carbonate minerals in water. Water is considered soft if total hardness is less than 75 ppm, moderately hard at 75 to 150 …
Actived: 4 days ago
Water System Plans
WEBFor More Information. John Puccinelli, P.E. [email protected]. Engineering Manager. Washington Water Service. (877) 408-4060. All public water systems must …
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