Middletown Water Department water quality

Updated 2026-10-23 · Delaware · Affiliate disclosure

We read 8 results from Middletown Water Department’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.

Serves about 17,700 people · Water system ID DE0000614 · Read the district’s 2025 report (opens in a new tab)

Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.

Results from the 2025 report

Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.

ContaminantResultHealth goalLegal limitWhat it means
Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · 2025 report, page 30.46 ppm0.3 ppm1.3 ppm (action level)Above the health goal1.5x the health goal
Gross alpha (radioactivity)as reported · range 1.8 to 2.77 · sampled 2021 · 2025 report, page 33 pCi/L0 pCi/L15 pCi/LAbove the health goalThe health goal is zero
Radium (combined 226 + 228)as reported · range 0.97 to 0.99 · sampled 2021 · 2025 report, page 31 pCi/L0 pCi/L5 pCi/LAbove the health goalThe health goal is zero
Chlorineas reported · range 1 to 1 · 2025 report, page 31 ppmNone set4 ppmBelow the legal limit
Disinfection byproducts (HAA5)as reported · range 1.08 to 5.15 · 2025 report, page 33 ppbNone set60 ppbBelow the legal limit
Disinfection byproducts (TTHM)as reported · range 0.74 to 13.9 · 2025 report, page 37 ppbNone set80 ppbBelow the legal limit
Fluorideas reported · range 0.48 to 0.67 · 2025 report, page 31 ppm1 ppm4 ppmBelow the health goal
Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · 2025 report, page 3Not detected0.2 ppb15 ppb (action level)Not detected

Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.

What you can do

Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.

Copper

Found: Copper

What removes it: Reverse osmosis.

See filters that remove itWhat water filter removes lead?

Radium and uranium

Found: Gross alpha (radioactivity), Radium (combined 226 + 228)

What removes it: Reverse osmosis.

See filters that remove it

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