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Community Water System · PWS CO0150600

Holly Town Of

Holly, Colorado 81047 - drinking water served from groundwater sources to 800 people, tracked in EPA SDWIS and UCMR5.

800
People served
155
EPA violations
94
Health-based
Untested
UCMR5 result

The verdict

EPA records 155 drinking-water violations at Holly Town Of, 61% of them health-based - above the Colorado per-system average.

155
Total EPA violations on record
61%
Health-based (MCL / treatment failure)
800
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Holly Town Of

Holly Town Of is a local-owned community water system that delivers drinking water to 800 residents in Holly, Colorado (Prowers County) through 511 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 155 total violations for this system , of which 94 (61%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 43 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 90 violations (MCL, health-based). 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%).

Holly Town Of's 155 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
800
Total Violations
155
Health-Based Violations
94
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
511
County
Prowers
School/Daycare
No
MCL Violations
90
Monitoring Violations
43
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 90 2025
Combined Radium (-226 and -228) MR 21 2023
Public Notice Other 12 2025
Coliform (TCR) MR 7 2007
Lead and Copper Rule MR 6 2025
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2021
Chlorine MR 4 2015
DICHLOROMETHANE MR 3 2022
Consumer Confidence Rule Other 2 2007
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 2008

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 Holly 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 CO0150600 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 Holly 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
2025 Combined Radium (-226 and -228) MCL 90 SDWIS / CO0150600 / 4010
2025 Public Notice Other 12 SDWIS / CO0150600 / 7500
2025 Lead and Copper Rule MR 6 SDWIS / CO0150600 / 5000
2023 Combined Radium (-226 and -228) MR 21 SDWIS / CO0150600 / 4010
2022 DICHLOROMETHANE MR 3 SDWIS / CO0150600 / 2964
2021 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 SDWIS / CO0150600 / 0400
2015 Chlorine MR 4 SDWIS / CO0150600 / 0999
2008 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 SDWIS / CO0150600 / 0600
2007 Coliform (TCR) MR 7 SDWIS / CO0150600 / 3100
2007 Consumer Confidence Rule Other 2 SDWIS / CO0150600 / 7000

How Holly Town Of Compares

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

Metric Holly Town Of Colorado avg Federal benchmark
Total violations 155 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 94 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 800 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 Holly Town Of water safe to drink? ▼
Holly Town Of (PWS ID: CO0150600) has 155 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 800 people using Groundwater sources.
How many people does Holly Town Of serve? ▼
Holly Town Of serves 800 people in Holly, Colorado. It is a Local-owned system using Groundwater water sources with 511 service connections.
What type of violations does Holly Town Of have? ▼
Holly Town Of has 155 total violations: 94 health-based violations (MCL exceedances or treatment failures), 43 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Holly Town Of water? ▼
No PFAS testing data is available for Holly Town Of under the EPA's UCMR5 monitoring program.
What water source does Holly Town Of use? ▼
Holly 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.

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.