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Community Water System · PWS CO0162610

Pierce Town Of

Pierce, Colorado 80650 - drinking water served from surface water sources to 1,094 people, tracked in EPA SDWIS and UCMR5.

1,094
People served
212
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 212 drinking-water violations at Pierce Town Of, 1% of them health-based - above the Colorado per-system average.

212
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
1,094
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pierce Town Of

Pierce Town Of is a local-owned community water system that delivers drinking water to 1,094 residents in Pierce, Colorado (Weld County) through 424 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 212 total violations for this system , of which 2 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 209 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 17 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%).

Pierce Town Of's 212 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
1,094
Total Violations
212
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
424
County
Weld
School/Daycare
No
MCL Violations
2
Monitoring Violations
209
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 17 2008
Total Haloacetic Acids (HAA5) MR 6 2021
TTHM MR 6 2021
1,2,4-Trichlorobenzene MR 4 2005
o-Dichlorobenzene MR 4 2005
p-Dichlorobenzene MR 4 2005
Vinyl chloride MR 4 2005
1,1-Dichloroethylene MR 4 2005
trans-1,2-Dichloroethylene MR 4 2005
1,1,1-Trichloroethane MR 4 2005
Trichloroethylene MR 4 2005
1,1,2-Trichloroethane MR 4 2005
Tetrachloroethylene MR 4 2005
Benzene MR 4 2005
Styrene MR 4 2005
Carbon tetrachloride MR 4 2005
Xylenes, Total MR 4 2005
Toluene MR 4 2005
Ethylbenzene MR 4 2005
CHLOROBENZENE MR 4 2005
1,2-Dichloropropane MR 4 2005
DICHLOROMETHANE MR 4 2005
cis-1,2-Dichloroethylene MR 4 2005
1,2-Dichloroethane MR 4 2005
Endrin MR 3 2005
BHC-GAMMA MR 3 2005
Methoxychlor MR 3 2005
Diquat MR 3 2005
OXAMYL MR 3 2005
Di(2-ethylhexyl) phthalate MR 3 2005

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 Pierce 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 CO0162610 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 Pierce 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 Total Haloacetic Acids (HAA5) MR 6 SDWIS / CO0162610 / 2456
2021 TTHM MR 6 SDWIS / CO0162610 / 2950
2008 Coliform (TCR) MR 17 SDWIS / CO0162610 / 3100
2008 Nitrate MR 3 SDWIS / CO0162610 / 1040
2005 1,2,4-Trichlorobenzene MR 4 SDWIS / CO0162610 / 2378
2005 o-Dichlorobenzene MR 4 SDWIS / CO0162610 / 2968
2005 p-Dichlorobenzene MR 4 SDWIS / CO0162610 / 2969
2005 Vinyl chloride MR 4 SDWIS / CO0162610 / 2976
2005 1,1-Dichloroethylene MR 4 SDWIS / CO0162610 / 2977
2005 trans-1,2-Dichloroethylene MR 4 SDWIS / CO0162610 / 2979
2005 1,1,1-Trichloroethane MR 4 SDWIS / CO0162610 / 2981
2005 Trichloroethylene MR 4 SDWIS / CO0162610 / 2984
2005 1,1,2-Trichloroethane MR 4 SDWIS / CO0162610 / 2985
2005 Tetrachloroethylene MR 4 SDWIS / CO0162610 / 2987
2005 Benzene MR 4 SDWIS / CO0162610 / 2990

How Pierce Town Of Compares

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

Metric Pierce Town Of Colorado avg Federal benchmark
Total violations 212 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 1,094 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 Pierce Town Of water safe to drink? ▼
Pierce Town Of (PWS ID: CO0162610) has 212 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,094 people using Surface Water sources.
How many people does Pierce Town Of serve? ▼
Pierce Town Of serves 1,094 people in Pierce, Colorado. It is a Local-owned system using Surface Water water sources with 424 service connections.
What type of violations does Pierce Town Of have? ▼
Pierce Town Of has 212 total violations: 2 health-based violations (MCL exceedances or treatment failures), 209 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pierce Town Of water? ▼
No PFAS testing data is available for Pierce Town Of under the EPA's UCMR5 monitoring program.
What water source does Pierce Town Of use? ▼
Pierce 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. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

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.