Water Quality in Thornton, CO (80022)

EPA violation data for public water systems serving ZIP code 80022.

Past Health-Based Violations

1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 11 monitoring/reporting violations.

More violations than 70% of US ZIP codes.

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

61,452

Population

21

Water Systems

12

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (21)

Thornton City Of

All resolved
Surface water 226,465 people served
8 violations (5yr) · All resolved
Lead tested: 2.3 ppb (limit: 15 ppb)

Westminster City Of

All resolved
Surface water 202,078 people served
3 violations (5yr) · All resolved
Lead tested: 1.3 ppb (limit: 15 ppb)

South Adams County Wsd

Purchased surface water 74,341 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Brighton City Of

1 health-based
Purchased surface water 56,304 people served
1 violation (5yr) · 1 health-based · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Northglenn City Of

Surface water 48,927 people served
0 violations
Lead tested: 1.7 ppb (limit: 15 ppb)

Town & Country Mutual Wtr

Groundwater 400 people served
0 violations

Advanced Mbl Hm Ct

Groundwater 200 people served
0 violations

Conoco Phillips Petroleum Company

Purchased surface water 200 people served
0 violations

Ups Service Center Bozeman

Groundwater 180 people served
0 violations

J-Burr Mbl Hm Ct

Groundwater 101 people served
0 violations

Morningside Trlr Ct

Groundwater 100 people served
0 violations

Lydias Cafe

Groundwater 25 people served
0 violations

Kearney Junior High School

Groundwater 25 people served
0 violations

Interstate Kennel Club

Groundwater 25 people served
0 violations

Suncor Denver Refinery

Purchased surface water 0
0 violations

Colorado Singh Sabha

Purchased surface water 0
0 violations

Arrowhead Water Users Assoc

Groundwater 0
0 violations

Irondale Elementary

Groundwater 0
0 violations

Curve Bar

Groundwater 0
0 violations

Rocky Mountain Arsenal

Purchased surface water 0
0 violations

Silver Saddle Lounge

Groundwater 0
0 violations

Contaminants Found

TTHMHealth-Based
1 violation
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
4 violations
All resolved
Surface Water Treatment RuleMonitoring
3 violations
All resolved
Lead and Copper RuleMonitoring

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

1 violation
All resolved
Combined UraniumMonitoring
1 violation
All resolved
Combined Radium (-226 and -228)Monitoring
1 violation
All resolved
Gross Alpha, Excl. Radon and UMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.3 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Thornton (80022) has more violations than 70% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.

Fewer violations 70th 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.

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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