Transient Non-Community · PWSID CO0240550

Moon Valley Ranch Resort

Serves 53 peopleGroundwaterOwner: PrivateSouth Fork, Colorado
1 open treatment violation.

Open for: Revised Total Coliform Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2016: 10 violations. 1 treatment lapse · 8 missed or late tests · 1 notice or report. Most recent began 2025-07-11.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
1Treatment lapse1 open
8Missed or late test
1Notice or report

More violations on record than 68% of active water systems in Colorado. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152016 · Missed or late test: 22016 · Missed or late test: 22019 · Missed or late test: 12019 · Notice or report: 12020 · Missed or late test: 120202021 · Missed or late test: 12022 · Missed or late test: 12024 · Missed or late test: 12025 · Treatment lapse: 12025 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
10% treatment lapse · 180% missed or late test · 810% notice or report · 1

Across Colorado, 74% of violations are missed or late tests and 6% are water over a limit.

What you can do

  • Total Coliform Bacteria: If your water system has coliform violations, consider boiling water or using bottled water until the system confirms the issue is resolved. Contact your water provider for their latest test results and any boil-water advisories.

Open now (1)

  1. 2025-07-11Revised Total Coliform RuleTTOpen

Every violation on record

  1. 2025-07-11Revised Total Coliform RuleTTOpen
  2. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  3. 2024-06-01Revised Total Coliform RuleMONBack in compliance
  4. 2022-06-01Revised Total Coliform RuleMONBack in compliance
  5. 2021-06-01Revised Total Coliform RuleMONBack in compliance
  6. 2020-05-01Revised Total Coliform RuleMONBack in compliance
  7. 2019-08-01Revised Total Coliform RuleMONBack in compliance
  8. 2019-07-11Revised Total Coliform RuleRPTBack in compliance
  9. 2016-08-01Revised Total Coliform RuleMONBack in compliance
  10. 2016-07-01Revised Total Coliform RuleMONBack in compliance

System details

Population served53
Service connections47
Water sourceGroundwater
System typeTransient Non-Community
OwnerPrivate
StatusActive
CitySouth Fork
EPA ZIP on file81154

Areas served

  • Mineral County

Reading this record

Moon Valley Ranch Resort is a transient non-community that draws from groundwater and serves about 53 people in South Fork, Colorado. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.