Tap Water Quality Report
Tap water quality in FORT COLLINS, Colorado
Tap water in FORT COLLINS, Colorado receives a grade of D (64/100) from TapWaterSafety.org. It's served by 2 public water systems, primarily FT COLLINS LOVELAND WD. 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; PFAS contamination. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in FORT COLLINS's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utilities serving FORT COLLINS.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 25.2 ppb, 419x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 22.8 ppb, 228x above the EWG health guideline of 0.1 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 30.6 ppb, 204x above the EWG health guideline of 0.15 ppb.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Water systems serving FORT COLLINS
FORT COLLINS is served by 2 public water systems. Click any utility to see its complete grade card and treatment plant contact info.
FT COLLINS LOVELAND WD
- Haloacetic acids (HAA9) significantly above health guideline
- Haloacetic acids (HAA5) significantly above health guideline
- Total trihalomethanes (TTHMs) significantly above health guideline
FT COLLINS CITY OF
- PFAS contamination
- Haloacetic acids (HAA9) significantly above health guideline
- Haloacetic acids (HAA5) significantly above health guideline
Recommended filters for FORT COLLINS
Filters matched to the specific contaminants in FORT COLLINS'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 FORT COLLINS'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 |
25.6 ppb | 0.06 | — | — | — | — | — | 427× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
22.8 ppb | 0.1 | 60.0 | 60 | — | — | — | 228× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
30.6 ppb | 0.15 | 80.0 | 100 | — | — | — | 204× over |
| Trichloroacetic acid Disinfection byproduct |
11.4 ppb | 0.1 | — | — | — | — | — | 114× over |
| Bromodichloromethane Disinfection byproduct |
4.51 ppb | 0.06 | — | — | — | — | — | 75× over |
| Chloroform Disinfection byproduct |
25.9 ppb | 0.4 | — | — | — | — | — | 65× over |
| Dichloroacetic acid Disinfection byproduct |
11.2 ppb | 0.2 | — | — | — | — | — | 56× over |
| Chromium (hexavalent) Heavy metal |
0.23 ppb | 0.02 | — | — | — | — | — | 12× over |
| Chlorite Disinfection byproduct |
358.3 ppb | 50.0 | 1000.0 | — | — | — | — | 7.2× over |
| Dibromoacetic acid Disinfection byproduct |
0.1 ppb | 0.03 | — | — | — | — | — | 3.3× over |
| Dibromochloromethane Disinfection byproduct |
0.193 ppb | 0.1 | — | — | — | — | — | 1.9× over |
| Nitrate Inorganic |
0.0647 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.112 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | Below guideline |
| Chlorate Disinfection byproduct |
48.5 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Nitrate and nitrite Inorganic |
0.03 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Barium Heavy metal |
17.3 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
0.25 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.18 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.135 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.26 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0488 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.238 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.601 ppm | — | 4.0 | 1.5 | 1.5 | — | — | 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 FT COLLINS LOVELAND WD.