Water Quality in San Jose, CA (94019)

EPA violation data for public water systems serving ZIP code 94019.

No Health-Based Violations

None of the 25 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.

14,419

Population

25

Water Systems

2

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (25)

City Of Daly City

Purchased surface water 104,901 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

California Water Service - San Mateo

Purchased surface water 102,348 people served
0 violations
Lead tested: 4.4 ppb (limit: 15 ppb)

City Of Redwood City

Purchased surface water 92,819 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

California Water Service-S San Francisco

Purchased surface water 64,146 people served
0 violations
Lead tested: 1.9 ppb (limit: 15 ppb)

California Water Service - Bear Gulch

Surface water 61,431 people served
0 violations
Lead tested: 4 ppb (limit: 15 ppb)

City Of San Bruno

Purchased surface water 41,327 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

North Coast County Water Dist

Purchased surface water 38,546 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Estero Municipal Improvement District

All resolved
Purchased surface water 36,556 people served
1 violation (5yr) · All resolved

California Water Service - San Carlos

Purchased surface water 35,344 people served
0 violations
Lead tested: 5.8 ppb (limit: 15 ppb)

City Of Burlingame

Purchased surface water 31,451 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Coastside County Water District

Surface water 18,940 people served
0 violations
Lead tested: 1.6 ppb (limit: 15 ppb)

Bean Hollow Comfort Station

Groundwater 958 people served
0 violations

Burlingame High School

Surface water 500 people served
0 violations

St John Mutual Water Company

Groundwater 60 people served
0 violations

Martins Beach Water System

All resolved
Surface water 49 people served
1 violation (5yr) · All resolved

Uc Elkus Ranch

Surface water 34 people served
0 violations

Gazos Creek Beach House

Groundwater 33 people served
0 violations

Silva Wholesale Florist

Unknown 30 people served
0 violations

Bean Hollow S.B. Residence

Purchased surface water 25 people served
0 violations

Amesport Mutual Water Company

Groundwater 25 people served
0 violations

Stone Pine Mutual Water Company

Groundwater 25 people served
0 violations

Caltrans Lombardi Springs

Groundwater 25 people served
0 violations

Cabrillo Farms Inc

Surface water 15 people served
0 violations

Alexander Cozzolino

Groundwater 8 people served
0 violations

Csp Ano Nuevo State Reserve

Groundwater 0
0 violations

Contaminants Found

TTHMMonitoring
1 violation
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

San Jose (94019) 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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