Tap Water Quality Report
Tap water quality in CONROE, Texas
Tap water in CONROE, Texas receives a grade of C (78/100) from TapWaterSafety.org. It's served by CITY OF CONROE. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromochloroacetic acid significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in CONROE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving CONROE.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 15.3 ppb, 256x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 18.9 ppb, 126x above the EWG health guideline of 0.15 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 1.86 ppb, 93x above the EWG health guideline of 0.02 ppb.
EPA compliance record
Official U.S. EPA records for CITY OF CONROE (system ID TX1700001) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for CONROE
Filters matched to the specific contaminants in CONROE's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
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 CONROE'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 |
15.3 ppb | 0.06 | — | — | — | — | — | 256× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
18.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 126× over |
| Bromochloroacetic acid Disinfection byproduct |
1.86 ppb | 0.02 | — | — | — | — | — | 93× over |
| Bromodichloromethane Disinfection byproduct |
3.84 ppb | 0.06 | — | — | — | — | — | 64× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
5.4 ppb | 0.1 | 60.0 | 60 | — | — | — | 54× over |
| Dibromoacetic acid Disinfection byproduct |
1.25 ppb | 0.03 | — | — | — | — | — | 42× over |
| Dibromochloromethane Disinfection byproduct |
3.83 ppb | 0.1 | — | — | — | — | — | 38× over |
| Dichloroacetic acid Disinfection byproduct |
2.66 ppb | 0.2 | — | — | — | — | — | 13× over |
| Trichloroacetic acid Disinfection byproduct |
1.33 ppb | 0.1 | — | — | — | — | — | 13× over |
| Chloroform Disinfection byproduct |
4.31 ppb | 0.4 | — | — | — | — | — | 11× over |
| Radium, combined (-226 and -228) Radiological |
0.25 pCi/L | 0.05 | 5.0 | — | — | — | — | 4.9× over |
| Nitrate and nitrite Inorganic |
0.44 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 3.1× over |
| Bromoform Disinfection byproduct |
1.43 ppb | 0.5 | — | — | — | — | — | 2.9× over |
| 1,2,3-Trichloropropane Other |
0.000584 ppb | 0.0007 | — | — | — | — | — | Below guideline |
| Nitrate Inorganic |
0.106 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Barium Heavy metal |
139.4 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Molybdenum Other |
1.27 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
3.09 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Aluminum Heavy metal |
2.16 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.133 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0208 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.836 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Xylenes (total) Volatile organic compound |
0.21 ppb | 1800.0 | 10000.0 | — | — | — | — | Below guideline |
| 1-Butanol Other |
0.0743 ppb | — | — | — | — | — | — | Below guideline |
| Dalapon Pesticide/Herbicide |
0.0211 ppb | — | 200.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.256 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.146 ppb | — | — | — | — | — | — | Below guideline |
| Hexadecanoic acid Other |
8.03 ppb | — | — | — | — | — | — | Below guideline |
| Octadecanoic acid Other |
13.1 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 CITY OF CONROE.