The 2016 Annual drinking water quality report for Central Sumter Utilities stated that “Your water was analyzed for hardness which resulted in a value of 169 mg/l”.
Degree of Hardness Grains per Gallon (gpg) ppm (or mg/L)
Slightly Hard 1.0-3.5 17.1-60
Moderately Hard 3.5-7.0 60-120
Hard 7.0-10.5 120-180
Very Hard >10.5 >180
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