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Community Water System · PWS CO0162288

Frederick Town Of

Frederick, Colorado 80530 - drinking water served from surface water sources to 17,173 people, tracked in EPA SDWIS and UCMR5.

17,173
People served
43
EPA violations
0
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 43 drinking-water violations at Frederick Town Of - below the Colorado per-system average.

43
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
17,173
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Frederick Town Of

Frederick Town Of is a local-owned community water system that delivers drinking water to 17,173 residents in Frederick, Colorado (Weld County) through 4,714 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 43 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 36 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 30 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Colorado, EPA tracks 2,193 public water systems serving 7,473,456 people, with 238,796 cumulative violations and 30,589 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 108.9 violations. Statewide, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Frederick Town Of's 43 violations sit below the Colorado average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
17,173
Total Violations
43
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,714
County
Weld
School/Daycare
No
MCL Violations
0
Monitoring Violations
36
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 30 2024
Consumer Confidence Rule Other 4 2011
TTHM MR 3 2021
Total Haloacetic Acids (HAA5) MR 3 2021
Public Notice Other 2 2021

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 91 samples detected PFAS.

Contaminant Date Result MRL Status
HFPO-DA 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFBS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFOA 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/23/2025 <2.00 ppt 2.00 ppt Not Detected
PFMBA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFEESA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/23/2025 <20.00 ppt 20.00 ppt Not Detected
ADONA 9/23/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/23/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/23/2025 <5.00 ppt 5.00 ppt Not Detected
PFMPA 9/23/2025 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 8/6/2025 <6.00 ppt 6.00 ppt Not Detected
PFTA 8/6/2025 <8.00 ppt 8.00 ppt Not Detected
NEtFOSAA 8/6/2025 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 8/6/2025 <7.00 ppt 7.00 ppt Not Detected
6:2 FTS 5/19/2025 <5.00 ppt 5.00 ppt Not Detected
PFPeS 5/19/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 5/19/2025 <2.00 ppt 2.00 ppt Not Detected
ADONA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/19/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 5/19/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 5/19/2025 <2.00 ppt 2.00 ppt Not Detected
4:2 FTS 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/19/2025 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/19/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/19/2025 <4.00 ppt 4.00 ppt Not Detected
NFDHA 5/19/2025 <20.00 ppt 20.00 ppt Not Detected
PFHxA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpS 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/19/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 5/19/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 5/19/2025 <3.00 ppt 3.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Frederick Town Of.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CO0162288 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Colorado Drinking Water Authority

Colorado Department of Public Health and Environment, Water Quality Control is the primacy agency that licenses and inspects Frederick Town Of under EPA-delegated authority.

Open CO regulator portal

Source: Colorado Department of Public Health and Environment, Water Quality Control

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Lead and Copper Rule MR 30 SDWIS / CO0162288 / 5000
2021 TTHM MR 3 SDWIS / CO0162288 / 2950
2021 Total Haloacetic Acids (HAA5) MR 3 SDWIS / CO0162288 / 2456
2021 Public Notice Other 2 SDWIS / CO0162288 / 7500
2011 Consumer Confidence Rule Other 4 SDWIS / CO0162288 / 7000

How Frederick Town Of Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Frederick Town Of Colorado avg Federal benchmark
Total violations 43 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 17,173 3,408 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,193 regulated public water systems in Colorado.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Frederick Town Of water safe to drink?
Frederick Town Of (PWS ID: CO0162288) has 43 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 17,173 people using Surface Water sources.
How many people does Frederick Town Of serve?
Frederick Town Of serves 17,173 people in Frederick, Colorado. It is a Local-owned system using Surface Water water sources with 4,714 service connections.
What type of violations does Frederick Town Of have?
Frederick Town Of has 43 total violations: 0 health-based violations (MCL exceedances or treatment failures), 36 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Frederick Town Of water?
No. Frederick Town Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Frederick Town Of use?
Frederick Town Of uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.