Water Quality in Concord, CA (94511)
EPA violation data for public water systems serving ZIP code 94511.
Active Health Violations
2 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
1,864
Population
32
Water Systems
10
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (32)
Contra Costa Water District
City Of Antioch
Brentwood
City Of Pittsburg
Pleasantimes Mutual Water Co
Lundborg Landing *Cl 2/09
Riverview Water Association
Sugar Barge Marina
Farrar Park Property Owners
Bethel Island Mutual Water Co
Russos Mobile Park
1 health-basedBethel Market
Delta Bar And Grill
Sandmound Mutual
1 health-basedAnglers Subdivision 4
Bethel Island Golf Course & Country Club
New Life Marina
Tugs
Bonnie & Clydes Saloon
Angler S Ranch #3
Marine Emporium Richards Yacht
Honolulu Grill *Cl 10/07
Willowest Marina Ws
Bethel Island Lodge
Mars Harbor
Anchor Marina
Casa Del Rio Water System
D Anna Yacht Center *Cl 2005
Sunset Marina
Seymour Paul Proctor
Keller Liquors
Hennis Marina - Inactive
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2024
Copper (Cu)
Exceeds limitSampled: Jan 2022
How Does This Compare?
Concord (94511) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
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.