Water Quality in Fresno, CA (93620)

EPA violation data for public water systems serving ZIP code 93620.

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

9,927

Population

19

Water Systems

13

Violations (5yr)

11

Health-Based

Location

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Water Systems Serving This Area (19)

City Of Fresno

Surface water 545,716 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

City Of Clovis

Surface water 130,130 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

City Of Merced

Groundwater 93,692 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

City Of Madera

Groundwater 66,560 people served
0 violations
Lead tested: 3 ppb (limit: 15 ppb)

City Of Los Banos

1 health-based
Groundwater 47,419 people served
2 violations (5yr) · 1 health-based

City Of Atwater

Groundwater 29,479 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

City Of Dos Palos

10 health-based
Surface water 7,452 people served
11 violations (5yr) · 10 health-based
Lead tested: 0 ppb (limit: 15 ppb)

Midway Community Services Dist

Purchased surface water 600 people served
0 violations

Oro Loma School

Surface water 200 people served
0 violations

North Dos Palos Water District

Purchased surface water 120 people served
0 violations

Reyes Camp-Closed

Groundwater 100 people served
0 violations

Gonzales Food Facility

Groundwater 60 people served
0 violations

Dos Palos Y Auction Yard

Groundwater 52 people served
0 violations

Henry Miller Reclamation District

Groundwater 41 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Dash Dream Plant

Groundwater 34 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

La Siesta Cafe

Groundwater 25 people served
0 violations

Ema Farms

Surface water 25 people served
0 violations

San Juan Ranch

Groundwater 20 people served
0 violations

Redfern Ranches

Surface water 0
0 violations

Contaminants Found

TTHMHealth-Based
10 violations
All resolved
LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
Has active
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

1 violation
Has active

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

Fresno (93620) has more violations than 72% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 13.

Fewer violations 72th 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

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 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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