Water Quality in FLORISSANT, CO (80816)

EPA violation data for public water systems serving ZIP code 80816.

534

Total Violations

38

Health-Based

496

Monitoring / Reporting

528

Resolved

What does this mean?

528 of 534 violations have been resolved. 38 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 496 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 23 Population served: 2,621

Violations Detail (534 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/AOct 12, 2025ResolvedN/A
Public NoticeMonitoringN/AN/AOct 12, 2025ResolvedN/A
Lead and Copper RuleMonitoringN/AN/ASep 30, 2025ActiveN/A
Lead and Copper RuleMonitoringN/AN/ASep 30, 2025ActiveN/A
Surface Water Treatment RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Surface Water Treatment RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Surface Water Treatment RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/AJun 30, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(19)

Public Notice

76

Oct 12Resolved

Public Notice

76

Oct 12Resolved

Lead and Copper Rule

66

Sep 30Active

Lead and Copper Rule

66

Sep 30Active

Surface Water Treatment Rule

36

Aug 31Resolved

Surface Water Treatment Rule

36

Aug 31Resolved

Surface Water Treatment Rule

36

Aug 31Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Revised Total Coliform Rule

5A

May 27Resolved

Revised Total Coliform Rule

5A

May 27Resolved

Revised Total Coliform Rule

5A

May 27Resolved

2024(52)

Total Haloacetic Acids (HAA5)

27

Dec 31Resolved

Total Haloacetic Acids (HAA5)

27

Dec 31Resolved

Total Haloacetic Acids (HAA5)

27

Dec 31Resolved

TTHM

27

Dec 31Resolved

TTHM

27

Dec 31Resolved

TTHM

27

Dec 31Resolved

Lead and Copper Rule

53

Dec 31Resolved

Lead and Copper Rule

53

Dec 31Resolved

Lead and Copper Rule

53

Dec 31Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

Revised Total Coliform Rule

4A

Sep 4Resolved

Revised Total Coliform Rule

4A

Sep 4Resolved

Revised Total Coliform Rule

4A

Sep 4Resolved

Revised Total Coliform Rule

4A

Sep 4Resolved

TTHM

35

Aug 5Resolved

TTHM

35

Aug 5Resolved

TTHM

35

Aug 5Resolved

TTHM

35

Aug 5Resolved

E. COLI

34

Aug 3Resolved

E. COLI

34

Aug 3Resolved

E. COLI

34

Aug 3Resolved

E. COLI

34

Aug 3Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Surface Water Treatment Rule

36

Jun 30Resolved

Surface Water Treatment Rule

36

Jun 30Resolved

Surface Water Treatment Rule

36

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Lead and Copper Rule

52

Jun 30Resolved

Lead and Copper Rule

52

Jun 30Resolved

Lead and Copper Rule

52

Jun 30Resolved

Public Notice

75

Jun 6Resolved

Public Notice

75

Jun 6Resolved

TTHM

35

Apr 1Resolved

TTHM

35

Apr 1Resolved

TTHM

35

Apr 1Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Nitrate

02

Mar 31Resolved

Public Notice

76

Mar 20Resolved

Public Notice

76

Mar 20Resolved

E. COLI

32

Feb 29Resolved

E. COLI

32

Feb 29Resolved

E. COLI

32

Feb 29Resolved

E. COLI

32

Jan 31Resolved

E. COLI

32

Jan 31Resolved

E. COLI

32

Jan 31Resolved

How Does This Compare?

FLORISSANT (80816) has 534 recorded violations, including 38 health-based. 6 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

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

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

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.

Nearby ZIP Codes

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