Water Quality in Middletown, CT (06419)
EPA violation data for public water systems serving ZIP code 06419.
Active Health Violations
8 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 98% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
6,240
Population
46
Water Systems
152
Violations (5yr)
8
Health-Based
Location
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Water Systems Serving This Area (46)
Middletown Water Department
All resolvedHaddam Killingworth Inter/Middle School
1 health-basedHaddam-Killingworth High School
Burr District Elementary School
Killingworth Elementary School
Deer Lake Outdoor Center Dining - Well 2
Pumpkin Patch Childcare& Learning Center
Riverdale Farm Campsites
Killingworth Congregational Church
All resolvedDenlar Apartments
Ridgewood Hills Association System 1
1 health-based163 Route 81
255 Route 80 - Killingworth
1 health-basedParmelee Farms - Well 1 - House
1 health-basedParmelee Farms - Well 2 - Garden
St. Lawrence Church (Well 2)
Deer Lake Outdoor Center - Well 1
260 Route 80 - Killingworth
All resolvedChatfield Hollow State Park-Lgsw
Chatfield Hollow State Park-Mw
St Lawrence Church
Copper Skillet Restaurant
Circle Pizza
2 health-basedSt. Lawrence Church (Rec Hall) Well 1
Chatfield Hollow State Park-Sw
Deer Lake Scout Reservation
Chatfield Hollow State Park-Olw
Killingworth Town Hall
Chatfield Hollow S.P./Oak Lodge
Killingworth Village Center
Sheldon Field
Killingworth Country Market
Chatfield Hollow S.P./Residence
Chatfield Hollow S.P./Three Culvert
Country Squire Shoppes & Restaurant
Killingworth Library
2 health-basedRunning Brook Farms
Killingworth Cong. Church -Old Town Hall
Deer Lake Outdoor Center - Well 3
Wadsworth Falls/Shop Well
M & L Products
Chatfield Hollow State Park-Tcbw
Chatfield Hollow S.P./Lifeguard Shack
Junes Outback
Country Squire Shoppes And Restaurant
187 Route 81 Killingworth
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
Similar to nitrate — harmful to infants at high levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Middletown (06419) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 152.
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
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.