Water Hardness Delaware
Here are the water hardness values for the cities in Delaware.
| City | AVG Hardness PPM / mg/L | AVG Hardness Grains per Gallon |
|---|---|---|
| Dover | 64 | 4 |
| Middletown | 119 | 7 |
| Newark | 122 | 7 |
| Wilmington | 117 | 6.9 |
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| City | AVG Hardness PPM / mg/L | AVG Hardness Grains per Gallon |
|---|---|---|
| Dover | 64 | 4 |
| Middletown | 119 | 7 |
| Newark | 122 | 7 |
| Wilmington | 117 | 6.9 |