Is Coventry Lake, CT tap water safe?
The short answer
1 of the 7 utilities serving Coventry Lake has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Twin Hills Water District.
Ctwc - Coventry Hills Div, which serves the most people here, has nothing above a health goal in EPA’s and CDC’s records. That data covers what its report lists, not everything.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Coventry Lake’s ZIP codes, from EPA’s estimates.
- Open report
Ctwc - Coventry Hills Div
Connecticut · serves 700 people · about 130 in Coventry Lake
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Ctwc - South Coventry System
Connecticut · serves 501 people · about 100 in Coventry Lake
2 results above the health goal. The worst: Lead at 3.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Ctwc - Northern Reg - Nathan Hale System
Connecticut · serves 160 people · under 100 in Coventry Lake
1 result above the health goal. The worst: Uranium at 3.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Ctwc - General Water Division
Connecticut · serves 306 people · under 100 in Coventry Lake
2 results above the health goal. The worst: Lead at 9.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Ctwc - Pilgrim Hills Division
Connecticut · serves 229 people · under 100 in Coventry Lake
2 results above the health goal. The worst: Lead at 3.1 ppb, above the health goal.
No health-based violations since 2016
- Open report
Ctwc - Northern Reg - Lakewood/Lakeview
Connecticut · serves 748 people · under 100 in Coventry Lake
1 result above the health goal. The worst: Uranium at 3.9 ppb, above the health goal.
No health-based violations since 2016
- Open report
Twin Hills Water District
Connecticut · serves 156 people · under 100 in Coventry Lake
1 result above the health goal. The worst: Lead at 1.2 ppb, above the health goal.
4 health-based violations since 2016
Water testing near Coventry Lake
The 3 labs Connecticut certifies closest to Coventry Lake, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Phoenix Environmental Laboratories, Inc.
Manchester, CT · about 9 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Envirotech Laboratory
Windsor, CT · about 18 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics, radioactivity
Northeast Laboratories, Inc
Rocky Hill, CT · about 18 miles
Certified for bacteria
ZIP codes in Coventry Lake
Which ZIP codes are in Coventry Lake: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Connecticut DPH, approved commercial laboratories certified to test drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Coventry Lake
Other towns in Tolland County with a page of their own.
What to do next
- Read Ctwc - Coventry Hills Div’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water