Water Quality in Santa Rosa, CA (95492)

EPA violation data for public water systems serving ZIP code 95492.

No Health-Based Violations

None of the 19 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are2 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 36% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

27,429

Population

19

Water Systems

2

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (19)

Santa Rosa, City Of

Groundwater 175,396 people served
0 violations

Petaluma, City Of

Groundwater 60,781 people served
0 violations

Rohnert Park, City Of

All resolved
Groundwater 43,821 people served
2 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Windsor, Town Of

Groundwater 25,561 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Windsor Immersion School

Groundwater 800 people served
0 violations

Lytton Rancheria Water System

Groundwater 600 people served
0 violations
Lead tested: 5 ppb (limit: 15 ppb)

La Crema Winery

Groundwater 75 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Mount Gilead Bible Conference

Groundwater under influence of surface water 64 people served
0 violations

Sonoma Cutrer

Groundwater 40 people served
0 violations

Windsorland Mobile Home Park

Groundwater 35 people served
0 violations

Mount Weske Estates Mutual Water Company

Groundwater 26 people served
0 violations

Wine Country Rv Park

Groundwater 25 people served
0 violations

Bliss Mutual Water System

Groundwater 25 people served
0 violations

Little School House, The

Groundwater 25 people served
0 violations

Windsor Oaks Winery

Groundwater 25 people served
0 violations

Royal Mobile Manor

Groundwater 0
0 violations

Orchard Mobile Home Park

Groundwater 0
0 violations

Windsor Mobile Country Club - Inactive

Groundwater 0
0 violations

Starr Elementary School

Groundwater 0
0 violations

Contaminants Found

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved
ArsenicMonitoring

A naturally occurring element that can cause cancer and other health effects at high levels.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
5 ppb measured Action level: 15 ppb

Sampled: Jul 2024

How Does This Compare?

Santa Rosa (95492) has more violations than 36% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 2, most of which are monitoring/reporting issues.

Fewer violations 36th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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