Is Osseo, 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 ↓
90.9/100
waterverge.com Osseo, MN — Water Quality Report
Osseo's drinking water received a grade of A (90.9 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 2,650 residents using purchased ground water.
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 7 violations on record, including 1 health-based violation. 2 remain unresolved.
What to know about Osseo's water
Osseo ranks #188 out of 466 cities in Minnesota for water quality, placing it mid-range in the state.
Osseo purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Osseo may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Osseo, MN water safe to drink?
Osseo's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (90.9/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 2,650 residents using groundwater (wells).
Recent water quality updates for Osseo
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Osseo's water quality assessment. Grade: A (90.9/100).
Contaminants: Lead and Copper Rule.
Contaminants: Revised Total Coliform Rule.
Contaminants: Chlorine.
Federal disaster declaration (FEMA DR-4290). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4182). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Osseo's water supply.
Well within EPA limits.
Violation history
Osseo's water system has 7 total violations on record, including 1 health-based violation. 2 remain unresolved.
Flood & environmental risk
Hennepin County has experienced 8 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. Local water sources include Mississippi River, Elm Creek Nr Champlin, Coon Creek, Sand Creek, Shingle Creek.
Where does Osseo's water come from?
Osseo's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,650 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Mississippi River (river), Elm Creek Nr Champlin (river), Coon Creek (river), Sand Creek (river), Shingle Creek (river).
What Osseo 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.
Osseo'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 Osseo
Industrial polluters nearby
Reported releases to surface water by facilities near Osseo, ranked by pounds discharged annually.
Total reported releases to surface water: 0 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
OWENS CORNING ROOFING & ASPHALT LLC MINNEAPOLIS, MN55430 | Polycyclic aromatic compounds | 0 | 6.8 mi |
CENTRAL SANDBLASTING NEW BRIGHTON, MN55112 | — | — | 9.9 mi |
BALLANTINE - DIV OF U.S. TSUBAKI ANOKA, MN55303 | — | — | 6.9 mi |
FEDERAL CARTRIDGE CO ANOKA, MN55303 | — | — | 5.9 mi |
GRACO INC-ANOKA ANOKA, MN55303 | — | — | 7.2 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Osseo
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- JOSLYN MANUFACTURING SUPPLY CO6.0 mi
- FMC CORP FRIDLEY PLANT7.3 mi
- NAVAL INDUSTRIAL RESERVE ORDNANCE PLANT7.4 mi
- KURT MANUFACTURING CO7.4 mi
- SOUTH ANDOVER SITE8.0 mi
Source: EPA Superfund National Priorities List
Flood & disaster history
Hennepin County has experienced 8 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Osseo compares by contaminant
Explore where Osseo ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Osseo's water comes from
Osseo purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Osseo's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 2,650 people through 1 water system.
Water bodies near Osseo
Osseo is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Osseo
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Osseo | MN1270042 | 2,650 | GWP |
How Osseo compares
Full Minnesota rankings →Osseo's score of 90.9/100 is above the average of 82/100 among major Minnesota cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Minnesota rankings →About Osseo, MN
Learn more about your water
Guides and resources related to Osseo's water quality findings.
Explore water quality across Hennepin
Frequently asked questions
Is Osseo, MN tap water safe to drink?
Osseo's water quality earned a grade of A (90.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #188 out of 466 cities tested in Minnesota.
What contaminants are in Osseo's water?
Lead was measured at 0.0 ppb (90th percentile). 7 violations are on record.
How is Osseo'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 Osseo?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Osseo's water come from?
Osseo's water is sourced from Purchased ground water. The city has 1 water system serving approximately 2,650 residents.
What health violations has Osseo's water system had?
Osseo has 1 health-based violation on record. The most recent violation was recorded in October 2020. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Osseo's groundwater at risk of contamination?
Osseo 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 7 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 Osseo's water compare to other cities?
Osseo ranks #188 out of 466 cities in Minnesota (better than 60% of state cities) and #1974 out of 15744 cities nationally (88th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Osseo's small water system affect quality?
Osseo's system serves approximately 2,650 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 7 violations on record.