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Is Delaware, OH tap water safe?

2 utilities serve Delaware, by EPA’s records. Here is what EPA’s and Ohio’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Neither of the 2 utilities serving Delaware has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Ohio’s records.

Delaware City PWS, which serves the most people here, has 1 result above EPA’s health benchmark. The worst: Lithium at 15.4 ppb, above EPA’s health benchmark. A health benchmark is a level EPA screens with, not a legal limit.

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 Delaware’s ZIP codes, from EPA’s estimates.

Water testing near Delaware

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Ohio certifies.

The 3 labs Ohio certifies closest to Delaware, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Benchmark Environmental Labs, Inc.

    Columbus, OH · about 17 miles

    Certified for bacteria

    (614) 267-4588

  • MASI Laboratory

    Plain City, OH · about 18 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (614) 873-4654

  • Eurofins DW and WW Central - Marion

    Marion, OH · about 21 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (740) 389-5991

All 76 certified labs for Ohio

ZIP codes in Delaware

Which ZIP codes are in Delaware: 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: Ohio EPA, laboratories certified/accepted to perform analyses on public drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Delaware

Towns nearby with a page of their own.

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