Del-Co Water Company, INC. Water Quality (Ohio) – 2025 Report Results

We read 11 results from Del-Co Water Company, INC.’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.

Serves about 150,000 people · Water system ID OH2101412 · Read the district’s 2025 report (opens in a new tab)

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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.

Contaminant	Result	Health goal	Legal limit	What it means
Atrazinehighest running annual average · range 0.31 to 0.76 · listed as a violation in the report · Entry points · 2025 report, page 4	0.47 ppb	0.15 ppb	3 ppb	Above the health goal3.1x the health goal
Fluorideaverage · range 0.86 to 1.18 · listed as a violation in the report · Entry points · 2025 report, page 4	1.08 ppm	1 ppm	4 ppm	Above the health goal1.1x the health goal
Lead90th percentile of 50 homes tested, 0 over the action level · sampled 2024 · Customer taps (50 sites) · 2025 report, page 5	0.85 ppb	0.2 ppb	15 ppb (action level)	Above the health goal4.3x the health goal
Bariumas reported · listed as a violation in the report · Entry points · 2025 report, page 4	0.02 ppm	2 ppm	2 ppm	Below the health goal
Chlorineaverage · range 1.34 to 1.62 · listed as a violation in the report · Distribution system · 2025 report, page 4	1.48 ppm	None set	4 ppm	Below the legal limit
Copper90th percentile of 50 homes tested, 0 over the action level · sampled 2024 · Customer taps (50 sites) · 2025 report, page 5	0.22 ppm	0.3 ppm	1.3 ppm (action level)	Below the health goal
Disinfection byproducts (HAA5)highest running annual average · range 10.1 to 45 · listed as a violation in the report · Distribution system · 2025 report, page 4	38.8 ppb	None set	60 ppb	Below the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 24.8 to 75.3 · listed as a violation in the report · Distribution system · 2025 report, page 4	80 ppb	None set	80 ppb	Below the legal limit
Nitrate (as N)highest measured · range 0.21 to 1.4 · listed as a violation in the report · Entry points · 2025 report, page 4	1.4 ppm	10 ppm	10 ppm	Below the health goal
Simazinehighest measured · range ND to 0.08 · listed as a violation in the report · Entry points · 2025 report, page 4	0.08 ppb	4 ppb	4 ppb	Below the health goal
Turbidity (cloudiness)highest measured · listed as a violation in the report · Treatment plants · 2025 report, page 4	0.25 NTU	None set	1 NTU	Below the legal limit

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

EPA testing for PFAS and lithium

EPA’s own nationwide testing (UCMR 5) found these in Del-Co Water Company, INC.’s water between Jul 2023 and Apr 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

PFOA4.2 pptFound in 1 of 10 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFBS4.3 pptFound in 4 of 10 samples · highest resultNo federal limit in force for this one
Lithium12.9 ppbFound in 2 of 10 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)

Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.

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.