Is Maple Lake, MN Tap Water Safe to Drink?
Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
91.4/100
waterverge.com Maple Lake, MN — Water Quality Report
Maple Lake's drinking water received a grade of A (91.4 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 2,215 residents using groundwater.
Lead levels were measured at 2.0 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 5 violations on record, including 1 health-based violation. 2 remain unresolved.
What to know about Maple Lake's water
Maple Lake ranks #166 out of 466 cities in Minnesota for water quality, placing it mid-range in the state.
Maple Lake 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, Maple Lake may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Maple Lake, MN water safe to drink?
Maple Lake's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (91.4/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 2,215 residents using groundwater (wells).
Recent water quality updates for Maple Lake
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Maple Lake's water quality assessment. Grade: A (91.4/100).
Federal disaster declaration (FEMA DR-4182). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-1982). Flood event — may have impacted local water infrastructure.
Contaminants: Coliform (TCR).
1 health-based. Contaminants: Coliform (TCR).
Contaminants: Lead and Copper Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Maple Lake's water supply.
Well within EPA limits.
Violation history
Maple Lake's water system has 5 total violations on record, including 1 health-based violation. 2 remain unresolved.
Flood & environmental risk
Wright 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 Maple Lake's water come from?
Maple Lake's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,215 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Maple Lake 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.
Maple Lake'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
Flood & disaster history
Wright 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.
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. | 2.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Maple Lake compares by contaminant
Explore where Maple Lake ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Maple Lake's water comes from
Maple Lake'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 2,215 people through 1 water system.
Water systems serving Maple Lake
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Maple Lake | MN1860011 | 2,215 | GW |
How Maple Lake compares
Full Minnesota rankings →Maple Lake's score of 91.4/100 is above the average of 82/100 among major Minnesota cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Minnesota rankings →About Maple Lake, MN
Learn more about your water
Guides and resources related to Maple Lake's water quality findings.
Explore water quality across Wright
Frequently asked questions
Is Maple Lake, MN tap water safe to drink?
Maple Lake's water quality earned a grade of A (91.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #166 out of 466 cities tested in Minnesota.
What contaminants are in Maple Lake's water?
Lead was measured at 2.0 ppb (90th percentile). 5 violations are on record.
How is Maple Lake'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 Maple Lake?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Maple Lake's water come from?
Maple Lake's water is sourced from Groundwater. The city has 1 water system serving approximately 2,215 residents.
What health violations has Maple Lake's water system had?
Maple Lake has 1 health-based violation on record. The most recent violation was recorded in September 2005. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Maple Lake's groundwater at risk of contamination?
Maple Lake 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 5 violations 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 Maple Lake's water compare to other cities?
Maple Lake ranks #166 out of 466 cities in Minnesota (better than 64% of state cities) and #1708 out of 15744 cities nationally (89th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Maple Lake's small water system affect quality?
Maple Lake's system serves approximately 2,215 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 5 violations on record.