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Dover, DE · 41,251 people served · EPA data 2021–2026

Tap water quality in Dover, Delaware

Dover's water systems logged zero health-based EPA violations in 2021–2026 — water that met every federal health standard on record. Day-to-day quality still varies with pipes and plumbing, but the municipal record here is clean.

B+Good
Dover water grade: B+
Good — our A–F grade from this city's EPA compliance record, relative to Delaware and the nation. How we grade →
Health-based violations, 2021–20260
Federal health standardsall met
Dover Water Department39,491 served
Lakeland/Beechwood Pump District459 served
Kitts Hummock Improvement Assoc305 served
Hunters Pointe Pump District261 served
Delaware quality rank#34 / 51 (81.3/100)
Delaware avg hardness200 PPM (very hard)
Want to know what's actually in your Dover water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

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Dover tap water FAQ

Is tap water safe to drink in Dover?

Dover's community water systems reported no health-based EPA violations in 2021–2026, meaning the water met federal health standards throughout. Home plumbing (especially pre-1986 lead solder or service lines) can still affect what reaches your glass — a home test settles it.

Who supplies Dover's water?

Dover Water Department (serving about 39,491 people); Lakeland/Beechwood Pump District (serving about 459 people); Kitts Hummock Improvement Assoc (serving about 305 people); Hunters Pointe Pump District (serving about 261 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Dover?

City-level hardness isn't published in a single federal dataset, but Delaware averages 200 PPM — "very hard" on the USGS scale. Your utility's water quality report lists Dover's exact hardness, or a $10 test strip tells you in a minute. If it comes back over 120 PPM, see our water softener guidance in the purification calculator.

Do I need a water filter in Dover?

The municipal record is clean, so filtering in Dover is about taste, hardness and your own plumbing rather than compliance. A carbon filter fixes chlorine taste; test first if your home predates 1986 (lead solder era).

Want to know what's actually in your Dover water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

Test your water at home

We may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.