Is Gretna, LA tap water safe?
The short answer
2 of the 4 utilities serving Gretna have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: W Jefferson Ww District 2 and New Orleans Algiers Water Works.
Gretna Waterworks, which serves the most people here, has 1 result above EPA’s health benchmark. The worst: Lithium at 15.6 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 Gretna’s ZIP codes, from EPA’s estimates.
- Open report
Gretna Waterworks
Louisiana · serves 17,026 people · nearly all in Gretna
1 result above EPA’s health benchmark. The worst: Lithium at 15.6 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
W Jefferson Ww District 2
Louisiana · serves 140,264 people · about 3,800 in Gretna
1 result above the legal limit and 3 results above the health goal. The worst: Haloacetic acids (HAA5) at 33.5 ppb, above the legal limit.
1 health-based violation since 2016
- Open report
New Orleans Algiers Water Works
Louisiana · serves 52,785 people · about 740 in Gretna
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 4.5 ppt, above EPA’s new limit, which takes effect in 2029.
7 health-based violations since 2016
- Open report
Belle Chasse Water District
Louisiana · serves 19,644 people · about 340 in Gretna
1 result above EPA’s health benchmark. The worst: Lithium at 17.6 ppb, above EPA’s health benchmark.
No health-based violations since 2016
Water testing near Gretna
The 3 labs Louisiana certifies closest to Gretna, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Curtis Environmental Services, Inc.
LaPlace, LA · about 30 miles
Certified for minerals and other inorganics, disinfection byproducts
Water Test, Inc.
Covington, LA · about 39 miles
Certified for bacteria
LDH Amite Regional Laboratory
Amite, LA · about 63 miles
Certified for bacteria
Which ZIP codes are in Gretna: 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 Gretna
Towns nearby with a page of their own.
What to do next
- Read Gretna Waterworks’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water