Tap Water Quality Report
Tap water quality in COLLEGE STATION, Texas
Tap water in COLLEGE STATION, Texas receives a grade of C (72/100) from TapWaterSafety.org. It's served by 2 public water systems, primarily CITY OF COLLEGE STATION. The most significant water quality concerns are: Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Dibromoacetic acid significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in COLLEGE STATION's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utilities serving COLLEGE STATION.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.2 ppb, 550x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 9.37 ppb, 156x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 20.8 ppb, 139x above the EWG health guideline of 0.15 ppb.
Dibromoacetic acid significantly above health guideline
Moderate concernDibromoacetic acid detected at 4.43 ppb, 148x above the EWG health guideline of 0.03 ppb.
EPA compliance record
Official U.S. EPA records for CITY OF COLLEGE STATION (system ID TX0210002) 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.
Water systems serving COLLEGE STATION
COLLEGE STATION is served by 2 public water systems. Click any utility to see its complete grade card and treatment plant contact info.
CITY OF COLLEGE STATION
- Arsenic significantly above health guideline
- Haloacetic acids (HAA9) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
TEXAS A&M UNIVERSITY MAIN CAMPUS
- Haloacetic acids (HAA9) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
- Dibromoacetic acid significantly above health guideline
Recommended filters for COLLEGE STATION
Filters matched to the specific contaminants in COLLEGE STATION's water supply.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
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 COLLEGE STATION'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 |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
2.2 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 550× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
20.3 ppb | 0.06 | — | — | — | — | — | 338× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
42.6 ppb | 0.15 | 80.0 | 100 | — | — | — | 284× over |
| Dibromoacetic acid Disinfection byproduct |
4.43 ppb | 0.03 | — | — | — | — | — | 148× over |
| Dibromochloromethane Disinfection byproduct |
14.2 ppb | 0.1 | — | — | — | — | — | 142× over |
| Bromodichloromethane Disinfection byproduct |
4.95 ppb | 0.06 | — | — | — | — | — | 83× over |
| Bromochloroacetic acid Disinfection byproduct |
1.63 ppb | 0.02 | — | — | — | — | — | 82× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
5.02 ppb | 0.1 | 60.0 | 60 | — | — | — | 50× over |
| Bromoform Disinfection byproduct |
19.6 ppb | 0.5 | — | — | — | — | — | 39× over |
| 1,2,3-Trichloropropane Other |
0.004 ppb | 0.0007 | — | — | — | — | — | 5.7× over |
| Chloroform Disinfection byproduct |
1.88 ppb | 0.4 | — | — | — | — | — | 4.7× over |
| Chromium (hexavalent) Heavy metal |
0.06 ppb | 0.02 | — | — | — | — | — | 3.0× over |
| Dichloroacetic acid Disinfection byproduct |
0.515 ppb | 0.2 | — | — | — | — | — | 2.6× over |
| Chlorate Disinfection byproduct |
284.0 ppb | 210.0 | — | — | — | — | — | 1.4× over |
| Nitrate Inorganic |
0.12 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Trichloroacetic acid Disinfection byproduct |
0.0771 ppb | 0.1 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
7.6 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Barium Heavy metal |
77.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
5.33 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.918 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
4.45 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
2.95 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
2.8 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
1.85 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.265 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
13.7 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.47 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.723 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
17.3 ppb | — | — | — | — | — | — | Below guideline |
| Acetone Other |
2.57 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 COLLEGE STATION.