B
75

Good Water Quality

Keosauqua, IA 52565

Van Buren County · Population served: 33,961 · Data updated March 2026

Water Systems Serving This Area

🏔
RATHBUN REGIONAL WATER ASSN (RATHBUN)
Surface water · Pop. 33,000
PWSID: IA0400900
🏔
KEOSAUQUA WATER WORKS
Surface water · Pop. 961
PWSID: IA8938026

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
1.0
15 ppb 1 ppb Passed

Violation History (Last 5 Years)

10Total (5yr)
0Health-Based
10Major

Water Quality Summary

Understanding Your Water in Keosauqua

Tap water quality in Keosauqua, Iowa (52565) receives an overall grade of B (Good) with a score of 75 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 12 points below the Iowa state average of 87. The area is served by 2 water systems providing water to approximately 33,961 people, using surface water sources.

Your Score 75/100 B
vs State 12 pts below Iowa avg (87)
vs National Equal to national average (75)

What a Grade B Means

A score of 75/100 means the water in Keosauqua, IA is generally good and meets EPA standards, with only minor areas of concern. There may be low levels of detectable contaminants or a small number of non-critical violations. Most residents can feel comfortable with their tap water quality, though basic filtration can provide an extra layer of protection.

Surface water: sourced from rivers, lakes, or reservoirs

Health Information

What These Contaminants Mean for You

⚠️

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 Keosauqua, Iowa receives a grade of B (Good) with a score of 75/100. 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 52565 is served by 2 water systems using surface water sources, providing water to approximately 33,961 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead levels in Keosauqua, Iowa are 1.0 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

No PFAS ("forever chemicals") were detected in water systems serving Keosauqua, Iowa 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 Keosauqua, Iowa have received 10 violations in the last 5 years. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Water in Keosauqua, Iowa shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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