Tap Water Quality Report
Tap water quality in ROSWELL, New Mexico
Tap water in ROSWELL, New Mexico receives a grade of D (66/100) from TapWaterSafety.org. It's served by ROSWELL MUNICIPAL WATER SYSTEM. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Dibromoacetic acid significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in ROSWELL's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving ROSWELL.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 1.71 ppb, 28x above the EWG health guideline of 0.06 ppb.
Dibromoacetic acid significantly above health guideline
Moderate concernDibromoacetic acid detected at 0.763 ppb, 25x above the EWG health guideline of 0.03 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 3.03 ppb, 20x above the EWG health guideline of 0.15 ppb.
EPA compliance record
Official U.S. EPA records for ROSWELL MUNICIPAL WATER SYSTEM (system ID NM3520203) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Public Notice Rule and Revised PN Rule | Other (e.g. public notice) | 06/07/2024 | Open |
| Ground Water Rule | Missed testing or reporting | 08/16/2025 | Open |
| Ground Water Rule | Required treatment not met | 06/01/2025 | Open |
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 ROSWELL
Filters matched to the specific contaminants in ROSWELL'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 ROSWELL'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 |
1.71 ppb | 0.06 | — | — | — | — | — | 28× over |
| Dibromoacetic acid Disinfection byproduct |
0.763 ppb | 0.03 | — | — | — | — | — | 25× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
3.03 ppb | 0.15 | 80.0 | 100 | — | — | — | 20× over |
| Nitrate and nitrite Inorganic |
2.24 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 16× over |
| Chromium (hexavalent) Heavy metal |
0.288 ppb | 0.02 | — | — | — | — | — | 14× over |
| Dibromochloromethane Disinfection byproduct |
1.16 ppb | 0.1 | — | — | — | — | — | 12× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
1.1 ppb | 0.1 | 60.0 | 60 | — | — | — | 11× over |
| Radium, combined (-226 and -228) Radiological |
0.43 pCi/L | 0.05 | 5.0 | — | — | — | — | 8.6× over |
| Bromodichloromethane Disinfection byproduct |
0.425 ppb | 0.06 | — | — | — | — | — | 7.1× over |
| Bromoform Disinfection byproduct |
1.4 ppb | 0.5 | — | — | — | — | — | 2.8× over |
| Uranium Radiological |
1.06 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 2.5× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
0.109 ppb | 0.06 | 5.0 | — | — | — | — | 1.8× over |
| Trichloroethylene Volatile organic compound |
0.37 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | Below guideline |
| Dichloroacetic acid Disinfection byproduct |
0.0756 ppb | 0.2 | — | — | — | — | — | Below guideline |
| Vanadium Other |
4.36 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Chloroform Disinfection byproduct |
0.0489 ppb | 0.4 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.37 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
20.3 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
0.943 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.128 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.177 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
2.09 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Xylenes (total) Volatile organic compound |
0.0657 ppb | 1800.0 | 10000.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.722 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.148 ppb | — | — | — | — | — | — | Below guideline |
| Lithium 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 ROSWELL MUNICIPAL WATER SYSTEM.