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Is Patterson, LA tap water safe?

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

Matched to your utility using EPA records.

The short answer

1 of the 2 utilities serving Patterson has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: City of Patterson Water System.

City of Patterson Water System, which serves the most people here, has 1 result above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 70.5 ppb, above the 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 Patterson’s ZIP codes, from EPA’s estimates.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in City of Patterson Water System’s water, which serves the most people here. Another utility’s report names what handles its own results.

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Every claim, and more filters, in the full report

Water testing near Patterson

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 Louisiana certifies.

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

  • LDH Central Laboratory

    Baton Rouge, LA · about 50 miles

    Certified for bacteria

    (225) 219-5200

  • Element Materials Technology Lafayette, LLC

    Lafayette, LA · about 52 miles

    Certified for lead and copper, metals

  • Curtis Environmental Services, Inc.

    LaPlace, LA · about 60 miles

    Certified for minerals and other inorganics, disinfection byproducts

All 48 certified labs for Louisiana

ZIP codes in Patterson

Which ZIP codes are in Patterson: 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: LDH, laboratories certified by Louisiana for drinking water analysis; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Patterson

Other towns in St. Mary Parish with a page of their own.

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