Delaware Water Quality

Water hardness and quality data for 11 cities in Delaware, USA.

State average

134mg/L

7.8 gpg

Hardness level

🟠 Hard

2 lab-verified

Cities

11

11 with data

Dover

Pop. 39,403

120–179 mg/Lgroundwater

PFAS: 57.1 ppt

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Newark

Pop. 33,817

120–179 mg/Lreservoir

PFAS: 1492.6 ppt

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Wilmington

Pop. 70,898

🟡 Moderately Hard

114 mg/Lreservoir

PFAS: 320.7 ppt

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Bear

Pop. 19,371

≈ Moderately Hard

85 mg/Lgroundwater

PFAS: 5.4 ppt

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Brookside

Pop. 14,353

120–179 mg/Lgroundwater

PFAS: 6.2 ppt

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Glasgow

Pop. 14,303

120–179 mg/Lgroundwater

PFAS: 8.8 ppt

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Hockessin

Pop. 13,527

🟡 Moderately Hard

75 mg/Lgroundwater

PFAS: 9.5 ppt

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Middletown

Pop. 20,372

120–179 mg/Lreservoir

PFAS: 0 ppt

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Milford

Pop. 10,252

120–179 mg/Lgroundwater

PFAS: 0 ppt

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Pike Creek Valley

Pop. 11,217

120–179 mg/Lgroundwater

PFAS: 5.8 ppt

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Smyrna

Pop. 11,319

120–179 mg/Lgroundwater

PFAS: 95.8 ppt

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