A
93

Excellent Water Quality

Blanchardville, WI 53516

Lafayette County · Population served: 810 · Data updated March 2026

Water Systems Serving This Area

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BLANCHARDVILLE WATERWORKS
Groundwater · Pop. 810
PWSID: WI1330071

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
5.9
15 ppb 1 ppb Warning

Water Quality Summary

Understanding Your Water in Blanchardville

Tap water quality in Blanchardville, Wisconsin (53516) receives an overall grade of A (Excellent) with a score of 93 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 15 points above the Wisconsin state average of 78. Compared to the national average (75), this area performs significantly better. The area is served by Blanchardville Waterworks, a groundwater system providing water to approximately 810 people. Testing has found elevated levels of Lead that warrant attention. The area has a clean violation record over the past 5 years — a positive indicator of consistent water quality management.

Your Score 93/100 A
vs State 15 pts above Wisconsin avg (78)
vs National 18 pts above national avg (75)

What a Grade A Means

A score of 93/100 means the water supply in Blanchardville, WI meets or exceeds all EPA standards with minimal issues. Contaminant levels are well within safe limits, and the water system has maintained a strong compliance record. While no water supply is guaranteed perfect at the tap due to household plumbing, this is among the best-scoring areas in the country.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Blanchardville, Wisconsin receives a grade of A (Excellent) with a score of 93/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 53516 is served by 1 water system using groundwater sources, providing water to approximately 810 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 5.9 ppb in Blanchardville, Wisconsin. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

No PFAS ("forever chemicals") were detected in water systems serving Blanchardville, Wisconsin during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Blanchardville, Wisconsin have zero violations in the last 5 years. This is a positive indicator of consistent regulatory compliance and water quality management.

Based on detected contaminants (lead), residents in Blanchardville, Wisconsin should consider: NSF/ANSI 53 certified filter — specifically rated for lead reduction. Pitcher filters (like Brita Longlast or PUR) and under-sink systems both work. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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