Tap Water Quality Report
Tap water quality in HOUMA, Louisiana
Tap water in HOUMA, Louisiana receives a grade of D (67/100) from TapWaterSafety.org. It's served by SCHRIEVER WATER TREATMENT SERVICE AREA. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in HOUMA's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving HOUMA.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 21.1 ppb, 352x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 39.0 ppb, 260x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 21.1 ppb, 211x above the EWG health guideline of 0.1 ppb.
Recommended filters for HOUMA
Filters matched to the specific contaminants in HOUMA'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 HOUMA'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 |
21.1 ppb | 0.06 | — | — | — | — | — | 352× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
39.0 ppb | 0.15 | 80.0 | 100 | — | — | — | 260× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
21.1 ppb | 0.1 | 60.0 | 60 | — | — | — | 211× over |
| Bromodichloromethane Disinfection byproduct |
12.1 ppb | 0.06 | — | — | — | — | — | 202× over |
| Trichloroacetic acid Disinfection byproduct |
8.08 ppb | 0.1 | — | — | — | — | — | 81× over |
| Chloroform Disinfection byproduct |
21.5 ppb | 0.4 | — | — | — | — | — | 54× over |
| Dibromoacetic acid Disinfection byproduct |
1.55 ppb | 0.03 | — | — | — | — | — | 52× over |
| Dichloroacetic acid Disinfection byproduct |
10.5 ppb | 0.2 | — | — | — | — | — | 52× over |
| Dibromochloromethane Disinfection byproduct |
5.08 ppb | 0.1 | — | — | — | — | — | 51× over |
| Nitrate and nitrite Inorganic |
0.6 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 4.3× over |
| Radium, combined (-226 and -228) Radiological |
0.21 pCi/L | 0.05 | 5.0 | — | — | — | — | 4.3× over |
| Chromium (hexavalent) Heavy metal |
0.0763 ppb | 0.02 | — | — | — | — | — | 3.8× over |
| Chlorate Disinfection byproduct |
303.8 ppb | 210.0 | — | — | — | — | — | 1.4× over |
| Atrazine Pesticide/Herbicide |
0.131 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Fails EU |
| Bromoform Disinfection byproduct |
0.281 ppb | 0.5 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0975 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Simazine Pesticide/Herbicide |
0.0122 ppb | 0.1 | 4.0 | — | — | — | — | Below guideline |
| Vanadium Other |
1.46 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
36.7 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Manganese Heavy metal |
3.9 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Molybdenum Other |
1.3 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.829 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
6.3 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.114 ppb | 25.0 | — | — | — | — | — | Below guideline |
| 2,4-D Pesticide/Herbicide |
0.035 ppb | 20.0 | 70.0 | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.8 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.155 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.773 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
2.32 ppb | — | — | — | — | — | — | 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 SCHRIEVER WATER TREATMENT SERVICE AREA.