Water Quality Report · Updated May 12, 2026
Coon Rapids
Coon Rapids delivers tap water graded D (57/100) by TapWaterSafety.org. The utility serves approximately 64,000 residents in Coon Rapids, Minnesota using groundwater. The most significant water quality concerns are: PFAS contamination; Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 7637676493.
Is Coon Rapids tap water safe to drink?
Coon Rapids delivers tap water that earns a grade of D (57/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 64,000 residents in Coon Rapids, drawing from groundwater.
Public testing data identifies 12 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Perfluorohexane sulfonate (PFHXS), Haloacetic acids (HAA5), Bromodichloromethane, Trichloroacetic acid, Chloroform, Dibromochloromethane, Dichloroacetic acid, Dibromoacetic acid, Radium, combined (-226 and -228). 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 Coon Rapids residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for Coon Rapids.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 3.42 ppb, 854x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 24.1 ppb, 402x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 28.7 ppb, 191x above the EWG health guideline of 0.15 ppb.
Contact Coon Rapids
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 Coon Rapids
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.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
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 57/100 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 |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
3.42 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 854× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
24.1 ppb | 0.06 | — | — | — | — | — | 402× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
28.7 ppb | 0.15 | 80.0 | 100 | — | — | — | 191× over |
| Perfluorohexane sulfonate (PFHXS) PFAS |
0.133 ppt | 0.001 | 10.0 | — | — | — | — | 133× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.3 ppb | 0.1 | 60.0 | 60 | — | — | — | 113× over |
| Bromodichloromethane Disinfection byproduct |
5.9 ppb | 0.06 | — | — | — | — | — | 98× over |
| Trichloroacetic acid Disinfection byproduct |
6.57 ppb | 0.1 | — | — | — | — | — | 66× over |
| Chloroform Disinfection byproduct |
20.4 ppb | 0.4 | — | — | — | — | — | 51× over |
| Dibromochloromethane Disinfection byproduct |
2.35 ppb | 0.1 | — | — | — | — | — | 23× over |
| Dichloroacetic acid Disinfection byproduct |
4.44 ppb | 0.2 | — | — | — | — | — | 22× over |
| Dibromoacetic acid Disinfection byproduct |
0.325 ppb | 0.03 | — | — | — | — | — | 11× over |
| Radium, combined (-226 and -228) Radiological |
0.47 pCi/L | 0.05 | 5.0 | — | — | — | — | 9.4× over |
| Chromium (hexavalent) Heavy metal |
0.0139 ppb | 0.02 | — | — | — | — | — | Below guideline |
| Nitrate Inorganic |
0.057 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.107 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | Below guideline |
| Molybdenum Other |
2.32 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
35.6 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
4.58 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
7.25 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.172 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
0.08 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.613 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.39 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.
Coon Rapids service area
This water system serves 1 community in Anoka County, Minnesota. Click any city for its dedicated tap water quality page.
Find the right filter for Coon Rapids water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.