B
81

Good Water Quality

Greenfield, CA 93927

Monterey County · Population served: 19,208 · Data updated March 2026

Water Systems Serving This Area

🌊
APPLE AVE WS #02
Groundwater · Pop. 75
PWSID: CA2701034
🌊
PINE ST WS #01
Groundwater · Pop. 36
PWSID: CA2701403
🏔
ARROYO CENTER WC
Surface water · Pop. 130
PWSID: CA2701658
🌊
GREENFIELD, CITY OF
Groundwater · Pop. 18,967
PWSID: CA2710008

Violation History (Last 5 Years)

6Total (5yr)
1Health-Based
2Major

Water Quality Summary

Understanding Your Water in Greenfield

Tap water quality in Greenfield, California (93927) receives an overall grade of B (Good) with a score of 81 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the California state average of 81. The area is served by 4 water systems providing water to approximately 19,208 people, using surface water and groundwater sources. Over the past 5 years, water systems here have accumulated 6 violations, including 1 health-based violations.

Your Score 81/100 B
vs State 0 pts above California avg (81)
vs National 6 pts above national avg (75)

What a Grade B Means

A score of 81/100 means the water in Greenfield, 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.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Greenfield, California receives a grade of B (Good) with a score of 81/100. 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 93927 is served by 4 water systems using surface water, groundwater sources, providing water to approximately 19,208 people. Multiple source types mean your water may come from a blend of surface and underground sources.

No lead data is currently available for ZIP code 93927. 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 Greenfield, 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 Greenfield, California have received 6 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 Greenfield, 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