Tap Water Quality Report
Tap water quality in LAKEWOOD, Colorado
Tap water in LAKEWOOD, Colorado receives a grade of D (62/100) from TapWaterSafety.org. It's served by CONSOLIDATED MUTUAL MAPLE GROVE. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in LAKEWOOD's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving LAKEWOOD.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA), Perfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 16.6 ppb, 277x above the EWG health guideline of 0.06 ppb.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 0.24 ppt, 240x above the EWG health guideline of 0.001 ppt.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 30.5 ppb, 203x above the EWG health guideline of 0.15 ppb.
EPA compliance record
Official U.S. EPA records for CONSOLIDATED MUTUAL MAPLE GROVE (system ID CO0130020) 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 LAKEWOOD
Filters matched to the specific contaminants in LAKEWOOD's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
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 LAKEWOOD'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 |
16.6 ppb | 0.06 | — | — | — | — | — | 277× over |
| Perfluorohexane sulfonate (PFHXS) PFAS |
0.24 ppt | 0.001 | 10.0 | — | — | — | — | 240× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
30.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 203× over |
| Bromodichloromethane Disinfection byproduct |
11.3 ppb | 0.06 | — | — | — | — | — | 189× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.9 ppb | 0.1 | 60.0 | 60 | — | — | — | 119× over |
| Dibromochloromethane Disinfection byproduct |
8.4 ppb | 0.1 | — | — | — | — | — | 84× over |
| Dibromoacetic acid Disinfection byproduct |
2.42 ppb | 0.03 | — | — | — | — | — | 81× over |
| Dichloroacetic acid Disinfection byproduct |
6.03 ppb | 0.2 | — | — | — | — | — | 30× over |
| Trichloroacetic acid Disinfection byproduct |
2.88 ppb | 0.1 | — | — | — | — | — | 29× over |
| Chloroform Disinfection byproduct |
9.48 ppb | 0.4 | — | — | — | — | — | 24× over |
| Chlorite Disinfection byproduct |
230.4 ppb | 50.0 | 1000.0 | — | — | — | — | 4.6× over |
| Chromium (hexavalent) Heavy metal |
0.0871 ppb | 0.02 | — | — | — | — | — | 4.4× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.3 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 3.3× over |
| Bromoform Disinfection byproduct |
1.31 ppb | 0.5 | — | — | — | — | — | 2.6× over |
| Chlorate Disinfection byproduct |
392.9 ppb | 210.0 | — | — | — | — | — | 1.9× over |
| Uranium Radiological |
0.58 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 1.3× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.433 ppb | 0.35 | — | — | 50 | 1 | — | 1.2× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.22 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | Below guideline |
| Molybdenum Other |
2.41 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
1.67 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Barium Heavy metal |
37.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
0.486 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.571 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.51 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| 2,4-D Pesticide/Herbicide |
0.05 ppb | 20.0 | 70.0 | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
1.1 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.875 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
1.18 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.313 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.182 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
1.33 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.45 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
16.0 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 CONSOLIDATED MUTUAL MAPLE GROVE.