Is Coon Rapids, IA Tap Water Safe to Drink?
Graded A — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
93/100
waterverge.com Coon Rapids, IA — Water Quality Report
Coon Rapids's drinking water received a grade of A (93 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,300 residents using groundwater.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 1 violation on record, including 0 health-based violations. All violations have been resolved.
What to know about Coon Rapids's water
Coon Rapids ranks #75 out of 436 cities in Iowa for water quality, placing it above average in the state.
Coon Rapids relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Coon Rapids may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Coon Rapids, IA water safe to drink?
Based on EPA testing data, Coon Rapids's tap water is generally safe to drink. The water system earned a grade of A (93/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 1,300 residents using groundwater (wells).
Recent water quality updates for Coon Rapids
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Coon Rapids's water quality assessment. Grade: A (93/100).
Federal disaster declaration (FEMA DR-4421). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3239). Hurricane event — may have impacted local water infrastructure.
Contaminants: Gross Alpha, Excl. Radon and U.
Key contaminant findings
Based on the most recent EPA sampling data for Coon Rapids's water supply.
Well within EPA limits.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Violation history
Coon Rapids's water system has 1 total violation on record, including 0 health-based violations. All violations have been resolved.
Flood & environmental risk
Carroll County has experienced 9 federally declared disasters since 1965. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Coon Rapids's water come from?
Coon Rapids's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,300 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Coon Rapids residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Coon Rapids's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Coon Rapids
Industrial polluters nearby
Reported releases to surface water by facilities near Coon Rapids, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
POET BIOREFINING COON RAPIDS LLC COON RAPIDS, IA50058 | — | — | 2.7 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Carroll County has experienced 9 federally declared disasters since 1965. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Coon Rapids's water supply, we recommend the following filter types.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 1.40 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level trend (90th percentile)
See how Coon Rapids compares by contaminant
Explore where Coon Rapids ranks among all Iowa cities for specific contaminants.
Water source & infrastructure
Where Coon Rapids's water comes from
Coon Rapids's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 1,300 people through 1 water system.
Water systems serving Coon Rapids
| System Name | PWSID | Population | Source |
|---|---|---|---|
| COON RAPIDS MUNICIPAL UTILITIES | IA1427070 | 1,300 | GW |
How Coon Rapids compares
Full Iowa rankings →Coon Rapids's score of 93/100 is above the average of 72/100 among major Iowa cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Iowa rankings →About Coon Rapids, IA
Wikipedia →Coon Rapids is a city in Carroll and Guthrie counties in the U.S. state of Iowa. The population was 1,300 at the 2020 census, which is a decrease of 5 from the 2000 census. The small portion of Coon Rapids that lies in Guthrie County is part of the Des Moines–West Des Moines Metropolitan Statistical Area.
Learn more about your water
Guides and resources related to Coon Rapids's water quality findings.
Explore water quality across Carroll
Frequently asked questions
Is Coon Rapids, IA tap water safe to drink?
Coon Rapids's water quality earned a grade of A (93/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #75 out of 436 cities tested in Iowa.
What contaminants are in Coon Rapids's water?
Lead was measured at 0.0 ppb (90th percentile). 1 violation is on record.
How is Coon Rapids's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Coon Rapids?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Coon Rapids's water come from?
Coon Rapids's water is sourced from Groundwater. The city has 1 water system serving approximately 1,300 residents.
Is Coon Rapids's groundwater at risk of contamination?
Coon Rapids uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 1 violation on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Coon Rapids's water compare to other cities?
Coon Rapids ranks #75 out of 436 cities in Iowa (better than 83% of state cities) and #1023 out of 15744 cities nationally (94th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Coon Rapids's small water system affect quality?
Coon Rapids's system serves approximately 1,300 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 1 violation on record.