Water Quality Report · Updated May 12, 2026
CONSOLIDATED MUTUAL MAPLE GROVE
CONSOLIDATED MUTUAL MAPLE GROVE delivers tap water graded D (55/100) by TapWaterSafety.org. The utility serves approximately 81,400 residents in LAKEWOOD, Colorado using surface water. 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. For questions, the utility can be reached at 303-238-0451.
Is LAKEWOOD tap water safe to drink?
CONSOLIDATED MUTUAL MAPLE GROVE delivers tap water that earns a grade of D (55/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 81,400 residents in LAKEWOOD, drawing from surface water.
Public testing data identifies 17 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Perfluorohexane sulfonate (PFHXS), Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Dibromochloromethane, Dibromoacetic acid, Dichloroacetic acid, Trichloroacetic acid, Chloroform, Chlorite, Chromium (hexavalent), Perfluorooctanoic acid (PFOA), Bromoform, Chlorate, Uranium, 1,4-Dioxane. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for LAKEWOOD residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for CONSOLIDATED MUTUAL MAPLE GROVE.
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.
Contact CONSOLIDATED MUTUAL MAPLE GROVE
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for LAKEWOOD
Filters matched to the specific contaminants in this water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
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.
Score breakdown
This utility's overall score of 55/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
CONSOLIDATED MUTUAL MAPLE GROVE service area
This water system serves 1 community in Jefferson County, Colorado. Click any city for its dedicated tap water quality page.
Find the right filter for LAKEWOOD water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.