A
98

Excellent Water Quality

Paramount, CA 90723

Los Angeles County · Population served: 63,299 · Data updated March 2026

Water Systems Serving This Area

🏔
PARAMOUNT - CITY, WATER DEPT.
Surface water · Pop. 55,200
PWSID: CA1910105
🌊
GSWC - HOLLYDALE
Groundwater · Pop. 8,099
PWSID: CA1910195

PFAS / Forever Chemicals

1 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA5.5 pptNo standard500 pptUnregulated

Water Quality Summary

Understanding Your Water in Paramount

Tap water quality in Paramount, California (90723) receives an overall grade of A (Excellent) with a score of 98 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 17 points above the California state average of 81. Compared to the national average (75), this area performs significantly better. The area is served by 2 water systems providing water to approximately 63,299 people, using surface water and groundwater sources. PFAS testing detected 1 compound, all currently below EPA limits. The area has a clean violation record over the past 5 years — a positive indicator of consistent water quality management.

Your Score 98/100 A
vs State 17 pts above California avg (81)
vs National 23 pts above national avg (75)

What a Grade A Means

A score of 98/100 means the water supply in Paramount, CA 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.

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 Paramount, California receives a grade of A (Excellent) with a score of 98/100. 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 90723 is served by 2 water systems using surface water, groundwater sources, providing water to approximately 63,299 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 90723. 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.

1 PFAS compound were detected in water serving Paramount, California, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Paramount, California 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 (PFAS), residents in Paramount, California should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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