Tap Water Quality Report
Tap water quality in BROOMFIELD, Colorado
Tap water in BROOMFIELD, Colorado receives a grade of D (67/100) from TapWaterSafety.org. It's served by BROOMFIELD CITY AND COUNTY OF. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Arsenic detected. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in BROOMFIELD's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving BROOMFIELD.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 23.7 ppb, 396x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 25.9 ppb, 173x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 17.1 ppb, 171x above the EWG health guideline of 0.1 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.282 ppb.
Recommended filters for BROOMFIELD
Filters matched to the specific contaminants in BROOMFIELD's 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.
All contaminants detected in BROOMFIELD'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 |
23.7 ppb | 0.06 | — | — | — | — | — | 396× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
25.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 173× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
17.1 ppb | 0.1 | 60.0 | 60 | — | — | — | 171× over |
| Bromodichloromethane Disinfection byproduct |
5.09 ppb | 0.06 | — | — | — | — | — | 85× over |
| Arsenic Heavy metal |
0.282 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 70× over |
| Trichloroacetic acid Disinfection byproduct |
6.79 ppb | 0.1 | — | — | — | — | — | 68× over |
| Dichloroacetic acid Disinfection byproduct |
10.3 ppb | 0.2 | — | — | — | — | — | 52× over |
| Chloroform Disinfection byproduct |
19.8 ppb | 0.4 | — | — | — | — | — | 50× over |
| Radium, combined (-226 and -228) Radiological |
1.3 pCi/L | 0.05 | 5.0 | — | — | — | — | 26× over |
| Dibromochloromethane Disinfection byproduct |
0.959 ppb | 0.1 | — | — | — | — | — | 9.6× over |
| Chromium (hexavalent) Heavy metal |
0.0424 ppb | 0.02 | — | — | — | — | — | 2.1× over |
| Cadmium Heavy metal |
0.055 ppb | 0.04 | 5.0 | 5 | 3 | 0.04 | — | 1.4× over |
| Dibromoacetic acid Disinfection byproduct |
0.024 ppb | 0.03 | — | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
147.4 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Antimony Heavy metal |
0.605 ppb | 1.0 | 6.0 | 10 | 20 | 1 | — | Below guideline |
| Nitrate Inorganic |
0.0467 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Vanadium Other |
0.748 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.38 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
3.35 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Barium Heavy metal |
14.1 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Strontium Radiological |
0.116 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.335 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.636 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 BROOMFIELD CITY AND COUNTY OF.