Water Quality in Fort Collins, CO (80535)

EPA violation data for public water systems serving ZIP code 80535.

No Health-Based Violations

None of the 10 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are27 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 83% of US ZIP codes.

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

1,896

Population

10

Water Systems

27

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (10)

Ft Collins City Of

All resolved
Surface water 179,901 people served
4 violations (5yr) · All resolved
Lead tested: 2.8 ppb (limit: 15 ppb)

Loveland City Of

All resolved
Surface water 95,471 people served
1 violation (5yr) · All resolved
Lead tested: 3.3 ppb (limit: 15 ppb)

Ft Collins Loveland Wd

Purchased surface water 63,532 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb)

East Larimer County Wd

All resolved
Purchased surface water 27,944 people served
8 violations (5yr) · All resolved
Lead tested: 3.9 ppb (limit: 15 ppb)

Csu Main And West Housing Campus

Purchased surface water 27,375 people served
9 violations (5yr)
Lead tested: 8 ppb (limit: 15 ppb)

Little Thompson Wd

Purchased surface water 25,654 people served
0 violations

West Fort Collins Wd

All resolved
Purchased surface water 4,000 people served
5 violations (5yr) · All resolved
Lead tested: 5.1 ppb (limit: 15 ppb)

West Ft Collins Wtr Dist

Purchased surface water 1,815 people served
0 violations

Stove Prairie Ranch

Groundwater 152 people served
0 violations

Big Country Mhp

Purchased surface water 120 people served
0 violations

Contaminants Found

Total Haloacetic Acids (HAA5)Monitoring
5 violations
All resolved
TTHMMonitoring
5 violations
All resolved
Surface Water Treatment RuleMonitoring
4 violations
All resolved
Public NoticeMonitoring
4 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

3 violations
Has active
Lead and Copper RuleMonitoring

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

2 violations
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

2 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Fort Collins (80535) has more violations than 83% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 27, most of which are monitoring/reporting issues.

Fewer violations 83th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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