Water Quality in San Diego, CA (92101)

EPA violation data for public water systems serving ZIP code 92101.

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

51,805

Population

14

Water Systems

7

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (14)

San Diego, City Of

Surface water 1,385,379 people served
0 violations

Helix Water District

Surface water 277,668 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Otay Water District

Purchased surface water 238,008 people served
0 violations

Sweetwater Authority

Surface water 191,282 people served
0 violations

Oceanside, City Of

Purchased surface water 171,483 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Escondido, City Of

Surface water 137,044 people served
0 violations
Lead tested: 1.1 ppb (limit: 15 ppb)

Vista Irrigation District

Surface water 132,430 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Mariners Crossing Apartments

Purchased surface water 750 people served
0 violations

Wilderness Gardens Preserve

Groundwater 500 people served
0 violations

Gsa Tecate Port Of Entry

All resolved
Groundwater 400 people served
4 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Gsa Calexico Port Of Entry

1 health-based
Purchased surface water 300 people served
2 violations (5yr) · 1 health-based
Lead tested: 0 ppb (limit: 15 ppb)

Hidden Valley Owner Llc

All resolved
Groundwater 200 people served
1 violation (5yr) · All resolved

Pala Rey Youth Camp

Groundwater 50 people served
0 violations

Cedar Power Partners Lp

Groundwater 25 people served
0 violations

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
Has active
TTHMMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved
Nitrate-NitriteMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

San Diego (92101) has more violations than 60% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 7.

Fewer violations 60th 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.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 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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