Water Quality in San Jose, CA (95030)

EPA violation data for public water systems serving ZIP code 95030.

Past Health-Based Violations

1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 5 monitoring/reporting violations.

More violations than 57% of US ZIP codes.

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

13,151

Population

30

Water Systems

6

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (30)

San Jose Water

1 health-based
Surface water 1,039,920 people served
1 violation (5yr) · 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

City Of Sunnyvale

Purchased surface water 157,566 people served
0 violations

City Of Santa Clara

Purchased surface water 130,746 people served
0 violations

Great Oaks Wc Inc

Groundwater 110,088 people served
0 violations

City Of San Jose - Evg/Edv/Coy

Purchased surface water 101,265 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

City Of Milpitas

All resolved
Purchased surface water 81,773 people served
2 violations (5yr) · All resolved

City Of Mountain View

Purchased surface water 81,501 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Cwsc Los Altos Suburban

Purchased surface water 69,973 people served
0 violations
Lead tested: 1.5 ppb (limit: 15 ppb)

City Of Palo Alto

Purchased surface water 67,231 people served
0 violations

Stevens Creek County Park

Purchased surface water 400 people served
0 violations

Mountain Summit Mutual Water System

Purchased surface water 223 people served
0 violations

Melody Woods Water Company

Groundwater 168 people served
0 violations
Lead tested: 3.7 ppb (limit: 15 ppb)

New Orchard Mobile Home Park Llc

Groundwater 125 people served
0 violations

Montezuma Hills

Groundwater 90 people served
0 violations

Sisters Of The Presentation Center

Surface water 80 people served
0 violations

Mireval Improvement Association

All resolved
Purchased surface water 60 people served
3 violations (5yr) · All resolved
Lead tested: 6 ppb (limit: 15 ppb)

Getting In Touch Water System

Groundwater 50 people served
0 violations

Summit General Store

Groundwater 50 people served
0 violations

Alma Water System

Surface water 50 people served
0 violations

Mt Springs Mutual Water Compan

Groundwater 45 people served
0 violations

Scc P&R, Rancho San Antonio

Groundwater 40 people served
0 violations

Leon Sprock

Surface water 40 people served
0 violations

Shady Lane Mutual Water System-Inactive

Purchased surface water 37 people served
0 violations

Stagecoach Road Mutual Water

Groundwater 34 people served
0 violations

Santa Cruz Mountain Pure Wc

Groundwater 28 people served
0 violations

Los Serenos Robles01

Purchased surface water 26 people served
0 violations

Redwood Lodge Water Company

Groundwater 25 people served
0 violations

Jikoji

Groundwater 25 people served
0 violations

Alma College Properties

Purchased surface water 0
0 violations

Montegomery Highlands Water System

Purchased surface water 0
0 violations

Contaminants Found

Surface Water Treatment RuleHealth-Based
1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

5 violations
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
3.7 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

San Jose (95030) has more violations than 57% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6.

Fewer violations 57th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Whole House Carbon Filter

A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.

Targets:Chlorine, Sediment, Taste & Odor

Look for:NSF/ANSI 42 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

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