Water Quality in Blue River, WI: No Violations — Grade C
Grade C · Score 64/100 · 1 water system · Updated 2026-05-03
Blue River's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
A clean federal EPA record is what the data shows for Blue River, WI — 1 system tracked across the full available compliance history, with no MCL exceedances, no unresolved monitoring gaps, and no enforcement proceedings documented at any stage.
Water Quality by ZIP Code in Blue River
Water quality varies across Blue River's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 53518 | C | 64 | 0 | 0 | View report → |
Water Quality Overview
Blue River, Wisconsin receives a water quality grade of C with an overall score of 64 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 1 water system serving Blue River. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.
What Grade C Means
A grade of C indicates moderate compliance issues. Blue River's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Blue River water systems is 0.0073 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 57% of homes built before 1986, Blue River has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Blue River is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Blue River
Blue River is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 424 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
How to Check Your Water in Blue River
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Blue River vs. Nearby Wisconsin Cities
How Blue River's water quality compares to similar cities in Wisconsin:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Blue River | C | 0 | 1 | 424 |
| Sextonville | C | 3 | 1 | 425 |
| Clyman | C | 3 | 1 | 422 |
| Hancock | B | 7 | 1 | 419 |
Common Questions About Blue River Water
These are the most common questions residents search for about water quality in Blue River, Wisconsin:
Is Blue River water hard or soft? Water hardness varies by source. Blue River's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Blue River tap water? Blue River's water receives a grade of C (64/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Blue River? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Blue River vs. Wisconsin Average
Understanding how Blue River compares to the broader Wisconsin average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Blue River.
ZIP Codes in Blue River
Blue River spans 1 ZIP code. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.