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Is Opelousas, LA tap water safe?

7 utilities serve Opelousas, 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

6 of the 7 utilities serving Opelousas have 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 Opelousas Water System, Town of Leonville Water System, Plaisance Water System and 3 more.

City of Opelousas Water System, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 29.8 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.

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 Opelousas’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 Opelousas 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 Opelousas

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 Opelousas, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • SGS North America, Inc. - Scott

    Scott, LA · about 19 miles

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

  • Element Materials Technology Lafayette, LLC

    Lafayette, LA · about 27 miles

    Certified for lead and copper, metals

  • LDH Central Laboratory

    Baton Rouge, LA · about 56 miles

    Certified for bacteria

    (225) 219-5200

All 48 certified labs for Louisiana

ZIP codes in Opelousas

Which ZIP codes are in Opelousas: 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 Opelousas

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

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