Tap Water Quality Report
Tap water quality in LOCKPORT, Louisiana
Tap water in LOCKPORT, Louisiana receives a grade of D (67/100) from TapWaterSafety.org. It's served by LAFOURCHE WATER DISTRICT 1. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in LOCKPORT's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving LOCKPORT.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 28.6 ppb, 477x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 30.6 ppb, 306x above the EWG health guideline of 0.1 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 19.5 ppb, 130x above the EWG health guideline of 0.15 ppb.
Recommended filters for LOCKPORT
Filters matched to the specific contaminants in LOCKPORT's water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in LOCKPORT's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
28.6 ppb | 0.06 | — | — | — | — | — | 477× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
30.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 306× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
19.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 130× over |
| Dichloroacetic acid Disinfection byproduct |
21.9 ppb | 0.2 | — | — | — | — | — | 110× over |
| Bromodichloromethane Disinfection byproduct |
3.79 ppb | 0.06 | — | — | — | — | — | 63× over |
| Trichloroacetic acid Disinfection byproduct |
5.14 ppb | 0.1 | — | — | — | — | — | 51× over |
| Dibromoacetic acid Disinfection byproduct |
1.16 ppb | 0.03 | — | — | — | — | — | 39× over |
| Chloroform Disinfection byproduct |
15.2 ppb | 0.4 | — | — | — | — | — | 38× over |
| Nitrate and nitrite Inorganic |
0.967 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 6.9× over |
| Dibromochloromethane Disinfection byproduct |
0.556 ppb | 0.1 | — | — | — | — | — | 5.6× over |
| Atrazine Pesticide/Herbicide |
0.246 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Fails EU |
| Chromium (hexavalent) Heavy metal |
0.0463 ppb | 0.02 | — | — | — | — | — | 2.3× over |
| Radium, combined (-226 and -228) Radiological |
0.08 pCi/L | 0.05 | 5.0 | — | — | — | — | 1.6× over |
| Chlorate Disinfection byproduct |
276.9 ppb | 210.0 | — | — | — | — | — | 1.3× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.113 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Aluminum Heavy metal |
146.7 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Simazine Pesticide/Herbicide |
0.0178 ppb | 0.1 | 4.0 | — | — | — | — | Below guideline |
| Manganese Heavy metal |
11.2 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
1.43 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
2.0 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.31 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.256 ppb | 25.0 | — | — | — | — | — | Below guideline |
| 2,4-D Pesticide/Herbicide |
0.0833 ppb | 20.0 | 70.0 | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.67 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.151 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.573 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from LAFOURCHE WATER DISTRICT 1.