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Community Water System · PWS CO0159090

Sage Creek Canyon Corp

Silverthorne, Colorado 80497 - drinking water served from groundwater sources to 192 people, tracked in EPA SDWIS and UCMR5.

192
People served
297
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 297 drinking-water violations at Sage Creek Canyon Corp, 1% of them health-based - above the Colorado per-system average.

297
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
192
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sage Creek Canyon Corp

Sage Creek Canyon Corp is a private-owned community water system that delivers drinking water to 192 residents in Silverthorne, Colorado (Summit County) through 41 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 297 total violations for this system , of which 3 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 257 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 43 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%).

Sage Creek Canyon Corp's 297 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
192
Total Violations
297
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
41
County
Summit
School/Daycare
No
MCL Violations
3
Monitoring Violations
257
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 43 2008
Lead and Copper Rule MR 19 2020
Chlorine MR 15 2016
Nitrate MR 10 2021
Consumer Confidence Rule Other 8 2020
Public Notice Other 7 2021
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 4 2016
Nitrate-Nitrite MR 3 1995
Coliform (TCR) MCL 3 2002
1,2,4-Trichlorobenzene MR 3 2005
1,1,1-Trichloroethane MR 3 2005
1,1,2-Trichloroethane MR 3 2005
Tetrachloroethylene MR 3 2005
Benzene MR 3 2005
Toluene MR 3 2005
Ethylbenzene MR 3 2005
Styrene MR 3 2005
BHC-GAMMA MR 3 2005
Methoxychlor MR 3 2005
Dalapon MR 3 2005
Diquat MR 3 2005
Di(2-ethylhexyl) adipate MR 3 2005
Simazine MR 3 2005
Dinoseb MR 3 2005
Hexachlorocyclopentadiene MR 3 2005
Aldicarb sulfoxide MR 3 2005
Carbofuran MR 3 2005
Aldicarb MR 3 2005
Atrazine MR 3 2005
LASSO 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 Sage Creek Canyon Corp.

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 CO0159090 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 Sage Creek Canyon Corp 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 Nitrate MR 10 SDWIS / CO0159090 / 1040
2021 Public Notice Other 7 SDWIS / CO0159090 / 7500
2020 Lead and Copper Rule MR 19 SDWIS / CO0159090 / 5000
2020 Consumer Confidence Rule Other 8 SDWIS / CO0159090 / 7000
2016 Chlorine MR 15 SDWIS / CO0159090 / 0999
2016 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 4 SDWIS / CO0159090 / 0600
2016 Revised Total Coliform Rule MON 3 SDWIS / CO0159090 / 8000
2008 Coliform (TCR) MR 43 SDWIS / CO0159090 / 3100
2006 Total Haloacetic Acids (HAA5) MR 2 SDWIS / CO0159090 / 2456
2006 TTHM MR 2 SDWIS / CO0159090 / 2950
2005 1,2,4-Trichlorobenzene MR 3 SDWIS / CO0159090 / 2378
2005 1,1,1-Trichloroethane MR 3 SDWIS / CO0159090 / 2981
2005 1,1,2-Trichloroethane MR 3 SDWIS / CO0159090 / 2985
2005 Tetrachloroethylene MR 3 SDWIS / CO0159090 / 2987
2005 Benzene MR 3 SDWIS / CO0159090 / 2990

How Sage Creek Canyon Corp Compares

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

Metric Sage Creek Canyon Corp Colorado avg Federal benchmark
Total violations 297 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 192 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 Sage Creek Canyon Corp water safe to drink? ▼
Sage Creek Canyon Corp (PWS ID: CO0159090) has 297 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 192 people using Groundwater sources.
How many people does Sage Creek Canyon Corp serve? ▼
Sage Creek Canyon Corp serves 192 people in Silverthorne, Colorado. It is a Private-owned system using Groundwater water sources with 41 service connections.
What type of violations does Sage Creek Canyon Corp have? ▼
Sage Creek Canyon Corp has 297 total violations: 3 health-based violations (MCL exceedances or treatment failures), 257 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sage Creek Canyon Corp water? ▼
No PFAS testing data is available for Sage Creek Canyon Corp under the EPA's UCMR5 monitoring program.
What water source does Sage Creek Canyon Corp use? ▼
Sage Creek Canyon Corp 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.