Meriden Water Division Water Quality (Connecticut) – 2025 Report Results

We read 10 results from Meriden Water Division’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.

Serves about 58,441 people · Water system ID CT0800011 · 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.

Contaminant	Result	Health goal	Legal limit	What it means
Copper90th percentile of homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 2	0.37 ppm	0.3 ppm	1.3 ppm (action level)	Above the health goal1.2x the health goal
Fluoridehighest measured · range 0.16 to 1.24 · listed as a violation in the report · Entry points · 2025 report, page 2	1.24 ppm	1 ppm	4 ppm	Above the health goal1.2x the health goal
Lead90th percentile of homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 2	1.4 ppb	0.2 ppb	15 ppb (action level)	Above the health goal7x the health goal
Uraniumhighest measured · range ND to 1.51 · listed as a violation in the report · sampled 2023 · Entry points · 2025 report, page 2	1.51 ppb	0.6 ppb	30 ppb	Above the health goal2.5x the health goal
Bariumhighest measured · range 0.004 to 0.5 · listed as a violation in the report · Entry points · 2025 report, page 2	0.5 ppm	2 ppm	2 ppm	Below the health goal
Chlorinehighest measured · range 0.03 to 2.6 · listed as a violation in the report · Distribution system · 2025 report, page 2	2.6 ppm	None set	4 ppm	Below the legal limit
Disinfection byproducts (HAA5)highest running annual average · range ND to 75.5 · listed as a violation in the report · Distribution system · 2025 report, page 2	30 ppb	None set	60 ppb	Below the legal limit
Disinfection byproducts (TTHM)highest running annual average · range ND to 76.5 · listed as a violation in the report · Distribution system · 2025 report, page 2	56 ppb	None set	80 ppb	Below the legal limit
Nitrate (as N)highest measured · range ND to 3.82 · listed as a violation in the report · Entry points · 2025 report, page 2	3.82 ppm	10 ppm	10 ppm	Below the health goal
Sodiumhighest measured · range 6.5 to 68.5 · listed as a violation in the report · Entry points · 2025 report, page 2	68.5 ppm	None set	None	No health 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 Meriden Water Division’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.

PFOA6.1 pptFound in 2 of 19 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFOS9.5 pptFound in 3 of 19 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFHxS4 pptFound in 1 of 19 samples · highest resultNo federal limit in force for this one
PFBS3.7 pptFound in 3 of 19 samples · highest resultNo federal limit in force for this one

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.