Water Quality in Delaware, OH (43031)
EPA violation data for public water systems serving ZIP code 43031.
Active Health Violations
3 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 53% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
13,876
Population
30
Water Systems
5
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (30)
Del-Co Water Company, Inc.
Newark City Pws
Delaware City Pws
Del-Co Water Co/Alum Cr.Plant
Del-Co Water/Olentangy Plant
Johnstown City Pws
Northridge Local School Campus
Johnstown Iga Store
Northridge Homer Elementary School Pws
Miller Memorial Church
Northridge Hartford Elementary
Tuggles Kountry Kitchen
Mastodon Inn
Clover Valley Golf Club Pws
2 health-basedJohnstown Mfg. Company
The Links At Echo Springs Pws
Kyber Run Golf Course
1 health-basedMiller United Methodist Church
Principal,Bennington Elem.Sch.
Johnstown Baptist Church
Church Of Christ Of John
Windsong Western World
Green Meadows Mhp
Tee Pee Child Care Center
Denny Dotson Chevrolet
Manager,Kenney Chevrolet
Dick Hill Ford Inc
Harmony Baptist Church
Johnstown Mill & Showcase
Horne Water Hauling, D. Horne
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Delaware (43031) has more violations than 53% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 5.
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.
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.