B
72

Good Water Quality

Kerman, CA 93630

Fresno County · Population served: 17,281 · Data updated March 2026

Water Systems Serving This Area

🌊
MURRIETA/HERNANDEZ FARMS
Groundwater · Pop. 25
PWSID: CA1000585
🌊
KERMAN, CITY OF
Groundwater · Pop. 17,256
PWSID: CA1010018

Violation History (Last 5 Years)

10Total (5yr)
1Health-Based
6Major

Water Quality Summary

Understanding Your Water in Kerman

Tap water quality in Kerman, California (93630) receives an overall grade of B (Good) with a score of 72 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 9 points below the California state average of 81. The area is served by 2 water systems providing water to approximately 17,281 people, using groundwater sources. Over the past 5 years, water systems here have accumulated 10 violations, including 1 health-based violations.

Your Score 72/100 B
vs State 9 pts below California avg (81)
vs National 3 pts below national avg (75)

What a Grade B Means

A score of 72/100 means the water in Kerman, CA 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.

Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Kerman, California receives a grade of B (Good) with a score of 72/100. 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 93630 is served by 2 water systems using groundwater sources, providing water to approximately 17,281 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.

No lead data is currently available for ZIP code 93630. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.

No PFAS ("forever chemicals") were detected in water systems serving Kerman, California 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 Kerman, California have received 10 violations in the last 5 years, including 1 health-based violation. 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 Kerman, California 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.

Explore Nearby

Water Quality in Nearby ZIP Codes