Water Quality Report · Updated May 12, 2026
BATON ROUGE WATER COMPANY
BATON ROUGE WATER COMPANY delivers tap water graded B (79/100) by TapWaterSafety.org. The utility serves approximately 596,844 residents in BATON ROUGE, Louisiana using groundwater. 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; Arsenic detected.
Is BATON ROUGE tap water safe to drink?
BATON ROUGE WATER COMPANY delivers tap water that earns a grade of B (79/100) from TapWaterSafety.org — a good rating, with only minor concerns relative to health-based guidelines.
The utility serves 596,844 residents in BATON ROUGE, drawing from groundwater.
Public testing data identifies 9 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Dichloroacetic acid, Arsenic, Chloroform, Trichloroacetic acid, Dibromoacetic acid, Radium, combined (-226 and -228). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for BATON ROUGE residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for BATON ROUGE WATER COMPANY.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 1.48 ppb, 25x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 1.82 ppb, 18x above the EWG health guideline of 0.1 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 1.9 ppb, 13x above the EWG health guideline of 0.15 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.0198 ppb.
Contact BATON ROUGE WATER COMPANY
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for BATON ROUGE
Filters matched to the specific contaminants in this water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 79/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
1.48 ppb | 0.06 | — | — | — | — | — | 25× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
1.82 ppb | 0.1 | 60.0 | 60 | — | — | — | 18× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
1.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 13× over |
| Dichloroacetic acid Disinfection byproduct |
1.3 ppb | 0.2 | — | — | — | — | — | 6.5× over |
| Arsenic Heavy metal |
0.0198 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 5.0× over |
| Chloroform Disinfection byproduct |
1.86 ppb | 0.4 | — | — | — | — | — | 4.6× over |
| Trichloroacetic acid Disinfection byproduct |
0.347 ppb | 0.1 | — | — | — | — | — | 3.5× over |
| Dibromoacetic acid Disinfection byproduct |
0.095 ppb | 0.03 | — | — | — | — | — | 3.2× over |
| Radium, combined (-226 and -228) Radiological |
0.15 pCi/L | 0.05 | 5.0 | — | — | — | — | 3.1× over |
| Bromodichloromethane Disinfection byproduct |
0.0473 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Nitrate and nitrite Inorganic |
0.0583 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Manganese Heavy metal |
20.3 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Antimony Heavy metal |
0.0877 ppb | 1.0 | 6.0 | 10 | 20 | 1 | — | Below guideline |
| Chromium (hexavalent) Heavy metal |
0.00156 ppb | 0.02 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
10.8 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Molybdenum Other |
0.339 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Heptachlor epoxide Other |
3.8e-05 ppb | 0.006 | 0.2 | — | — | — | — | Below guideline |
| Barium Heavy metal |
2.55 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0833 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.0322 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Cobalt Other |
0.0245 ppb | 70.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0155 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 1-Butanol Other |
0.0561 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.33 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.351 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
13.6 ppb | — | — | — | — | — | — | Below guideline |
| Silver Other |
0.396 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
BATON ROUGE WATER COMPANY service area
This water system serves 1 community in East Baton Rouge Parish County, Louisiana. Click any city for its dedicated tap water quality page.
Find the right filter for BATON ROUGE water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.