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Community Water System · PWS CO0162438

Keenesburg Town Of

Keenesburg, Colorado 80643 - drinking water served from groundwater sources to 4,650 people, tracked in EPA SDWIS and UCMR5.

4,650
People served
161
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 161 drinking-water violations at Keenesburg Town Of, 11% of them health-based - above the Colorado per-system average.

161
Total EPA violations on record
11%
Health-based (MCL / treatment failure)
4,650
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Keenesburg Town Of

Keenesburg Town Of is a local-owned community water system that delivers drinking water to 4,650 residents in Keenesburg, Colorado (Weld County) through 865 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 161 total violations for this system , of which 18 (11%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 140 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 25 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Keenesburg Town Of's 161 violations sit above 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
4,650
Total Violations
161
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
865
County
Weld
School/Daycare
No
MCL Violations
18
Monitoring Violations
140
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 25 2008
Coliform (TCR) MCL 10 2003
Chlorine MR 9 2008
TTHM MCL 8 2019
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 4 2016
Xylenes, Total MR 3 2002
DICHLOROMETHANE MR 3 2002
p-Dichlorobenzene MR 3 2002
trans-1,2-Dichloroethylene MR 3 2002
1,1,1-Trichloroethane MR 3 2002
Trichloroethylene MR 3 2002
Benzene MR 3 2002
Toluene MR 3 2002
Styrene MR 3 2002
Barium MR 3 2005
Cadmium MR 3 2005
Chromium MR 3 2005
Beryllium, Total MR 3 2005
TTHM MR 3 2016
Public Notice Other 3 2019
Lead and Copper Rule MR 3 2021
Thallium, Total MR 3 2005
1,1-Dichloroethylene MR 3 2002
1,2-Dichloropropane MR 3 2002
Vinyl chloride MR 3 2002
cis-1,2-Dichloroethylene MR 3 2002
1,1,2-Trichloroethane MR 3 2002
Arsenic MR 3 2005
Antimony, Total MR 3 2005
1,2,4-Trichlorobenzene MR 3 2002

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 Keenesburg 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 CO0162438 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 Keenesburg 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
2021 Lead and Copper Rule MR 3 SDWIS / CO0162438 / 5000
2019 TTHM MCL 8 SDWIS / CO0162438 / 2950
2019 Public Notice Other 3 SDWIS / CO0162438 / 7500
2016 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 4 SDWIS / CO0162438 / 0600
2016 TTHM MR 3 SDWIS / CO0162438 / 2950
2016 Total Haloacetic Acids (HAA5) MR 3 SDWIS / CO0162438 / 2456
2008 Coliform (TCR) MR 25 SDWIS / CO0162438 / 3100
2008 Chlorine MR 9 SDWIS / CO0162438 / 0999
2005 Barium MR 3 SDWIS / CO0162438 / 1010
2005 Cadmium MR 3 SDWIS / CO0162438 / 1015
2005 Chromium MR 3 SDWIS / CO0162438 / 1020
2005 Beryllium, Total MR 3 SDWIS / CO0162438 / 1075
2005 Thallium, Total MR 3 SDWIS / CO0162438 / 1085
2005 Arsenic MR 3 SDWIS / CO0162438 / 1005
2005 Antimony, Total MR 3 SDWIS / CO0162438 / 1074

How Keenesburg Town Of Compares

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

Metric Keenesburg Town Of Colorado avg Federal benchmark
Total violations 161 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 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 4,650 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 Keenesburg Town Of water safe to drink?
Keenesburg Town Of (PWS ID: CO0162438) has 161 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 4,650 people using Groundwater sources.
How many people does Keenesburg Town Of serve?
Keenesburg Town Of serves 4,650 people in Keenesburg, Colorado. It is a Local-owned system using Groundwater water sources with 865 service connections.
What type of violations does Keenesburg Town Of have?
Keenesburg Town Of has 161 total violations: 18 health-based violations (MCL exceedances or treatment failures), 140 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Keenesburg Town Of water?
No PFAS testing data is available for Keenesburg Town Of under the EPA's UCMR5 monitoring program.
What water source does Keenesburg Town Of use?
Keenesburg Town Of uses Groundwater 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. 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.