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Community Water System · PWS CO0101166

Cavanaugh Hills WS

Keenesburg, Colorado 80643 - drinking water served from groundwater sources to 286 people, tracked in EPA SDWIS and UCMR5.

286
People served
208
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 208 drinking-water violations at Cavanaugh Hills WS - above the Colorado per-system average.

208
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
286
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Cavanaugh Hills WS

Cavanaugh Hills WS is a private-owned community water system that delivers drinking water to 286 residents in Keenesburg, Colorado (Adams County) through 118 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 208 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 208 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 Carbofuran, recorded in 7 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%).

Cavanaugh Hills WS's 208 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
286
Total Violations
208
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
118
County
Adams
School/Daycare
No
MCL Violations
0
Monitoring Violations
208
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Carbofuran MR 7 2020
OXAMYL MR 7 2020
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 5 2016
Endrin MR 4 2007
BHC-GAMMA MR 4 2007
Methoxychlor MR 4 2007
Toxaphene MR 4 2007
Dalapon MR 4 2007
Diquat MR 4 2007
Endothall MR 4 2007
Di(2-ethylhexyl) phthalate MR 4 2007
Picloram MR 4 2007
Dinoseb MR 4 2007
Hexachlorocyclopentadiene MR 4 2007
Aldicarb sulfone MR 4 2007
Aldicarb MR 4 2007
Atrazine MR 4 2007
Heptachlor MR 4 2007
Heptachlor epoxide MR 4 2007
2,4,5-TP MR 4 2007
Pentachlorophenol MR 4 2007
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2007
ETHYLENE DIBROMIDE MR 4 2007
Chlordane MR 4 2007
LASSO MR 4 2007
Aldicarb sulfoxide MR 4 2007
Di(2-ethylhexyl) adipate MR 4 2007
Simazine MR 4 2007
HEXACHLOROBENZENE MR 4 2007
2,4-D MR 4 2007

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 Cavanaugh Hills WS.

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 CO0101166 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 Cavanaugh Hills WS 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 Nitrate MR 3 SDWIS / CO0101166 / 1040
2020 Carbofuran MR 7 SDWIS / CO0101166 / 2046
2020 OXAMYL MR 7 SDWIS / CO0101166 / 2036
2016 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 5 SDWIS / CO0101166 / 0600
2007 Endrin MR 4 SDWIS / CO0101166 / 2005
2007 BHC-GAMMA MR 4 SDWIS / CO0101166 / 2010
2007 Methoxychlor MR 4 SDWIS / CO0101166 / 2015
2007 Toxaphene MR 4 SDWIS / CO0101166 / 2020
2007 Dalapon MR 4 SDWIS / CO0101166 / 2031
2007 Diquat MR 4 SDWIS / CO0101166 / 2032
2007 Endothall MR 4 SDWIS / CO0101166 / 2033
2007 Di(2-ethylhexyl) phthalate MR 4 SDWIS / CO0101166 / 2039
2007 Picloram MR 4 SDWIS / CO0101166 / 2040
2007 Dinoseb MR 4 SDWIS / CO0101166 / 2041
2007 Hexachlorocyclopentadiene MR 4 SDWIS / CO0101166 / 2042

How Cavanaugh Hills WS Compares

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

Metric Cavanaugh Hills WS Colorado avg Federal benchmark
Total violations 208 108.9 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 286 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 Cavanaugh Hills WS water safe to drink? ▼
Cavanaugh Hills WS (PWS ID: CO0101166) has 208 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 286 people using Groundwater sources.
How many people does Cavanaugh Hills WS serve? ▼
Cavanaugh Hills WS serves 286 people in Keenesburg, Colorado. It is a Private-owned system using Groundwater water sources with 118 service connections.
What type of violations does Cavanaugh Hills WS have? ▼
Cavanaugh Hills WS has 208 total violations: 0 health-based violations (MCL exceedances or treatment failures), 208 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Cavanaugh Hills WS water? ▼
No PFAS testing data is available for Cavanaugh Hills WS under the EPA's UCMR5 monitoring program.
What water source does Cavanaugh Hills WS use? ▼
Cavanaugh Hills WS 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.