Transient Non-Community · PWSID CO0207724

Stone Mountain Lodge and Cabins

Serves 160 peopleGroundwater Under InfluenceOwner: PrivateLyons, Colorado
Nothing open that measures the water, but 2 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2015: 90 violations. 14 treatment lapses · 71 missed or late tests · 5 notices or reports. Most recent began 2025-06-01.

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
14Treatment lapse
71Missed or late test
5Notice or report2 open

More violations on record than 96% 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

200520102015 · Treatment lapse: 62015 · Treatment lapse: 62015 · Treatment lapse: 620152016 · Treatment lapse: 32016 · Treatment lapse: 32016 · Missed or late test: 42016 · Missed or late test: 42017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 52018 · Treatment lapse: 52018 · Treatment lapse: 52018 · Treatment lapse: 52018 · Notice or report: 42018 · Notice or report: 42019 · Missed or late test: 22020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 720202021 · Missed or late test: 152021 · Missed or late test: 152021 · Missed or late test: 152021 · Missed or late test: 152021 · Missed or late test: 152021 · Missed or late test: 152021 · Missed or late test: 152021 · Missed or late test: 152022 · Missed or late test: 102022 · Missed or late test: 102022 · Missed or late test: 102022 · Missed or late test: 102022 · Missed or late test: 102023 · Missed or late test: 162023 · Missed or late test: 162023 · Missed or late test: 162023 · Missed or late test: 162023 · Missed or late test: 162023 · Missed or late test: 162023 · Missed or late test: 162023 · Missed or late test: 162023 · Notice or report: 12024 · Missed or late test: 42024 · Missed or late test: 42025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025 · Missed or late test: 82025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
16% treatment lapse · 1479% missed or late test · 716% notice or report · 5

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

Open now (2)

  1. 2023-07-24Public NoticePN Violation without NPDWR ViolationOpen
  2. 2018-04-27Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-06-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  2. 2025-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  3. 2025-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  4. 2025-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  5. 2025-03-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  6. 2025-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  7. 2025-02-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  8. 2025-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  9. 2024-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  10. 2024-11-01Revised Total Coliform RuleMONBack in compliance
  11. 2024-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  12. 2024-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  13. 2023-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  14. 2023-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  15. 2023-12-01Revised Total Coliform RuleMONBack in compliance
  16. 2023-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  17. 2023-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  18. 2023-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  19. 2023-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  20. 2023-07-24Public NoticePN Violation without NPDWR ViolationOpen
  21. 2023-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  22. 2023-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  23. 2023-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  24. 2023-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  25. 2023-05-01Revised Total Coliform RuleMONBack in compliance
Show the other 65 entries
  1. 2023-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  2. 2023-02-01Revised Total Coliform RuleMONBack in compliance
  3. 2023-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  4. 2023-01-01Revised Total Coliform RuleMONBack in compliance
  5. 2022-12-01Revised Total Coliform RuleMONBack in compliance
  6. 2022-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  7. 2022-07-01Revised Total Coliform RuleMONBack in compliance
  8. 2022-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  9. 2022-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  10. 2022-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  11. 2022-02-01Revised Total Coliform RuleMONBack in compliance
  12. 2022-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  13. 2022-01-01Revised Total Coliform RuleMONBack in compliance
  14. 2022-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  15. 2021-12-01E. ColiMonitoring, Source Water (LT2)Period ended · no return to compliance on file
  16. 2021-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  17. 2021-12-01Revised Total Coliform RuleMONBack in compliance
  18. 2021-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  19. 2021-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  20. 2021-09-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  21. 2021-09-01Revised Total Coliform RuleMONBack in compliance
  22. 2021-09-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  23. 2021-08-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  24. 2021-06-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  25. 2021-05-01Revised Total Coliform RuleMONBack in compliance
  26. 2021-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  27. 2021-04-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  28. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  29. 2021-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  30. 2020-10-02Surface water treatment (LT2)Monitoring, Source Water (LT2)Back in compliance
  31. 2020-08-01Revised Total Coliform RuleMONBack in compliance
  32. 2020-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  33. 2020-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  34. 2020-07-01Revised Total Coliform RuleMONBack in compliance
  35. 2020-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  36. 2020-03-01Revised Total Coliform RuleMONBack in compliance
  37. 2019-07-02Surface water treatment (LT2)Monitoring, Source Water (LT2)Back in compliance
  38. 2019-03-01Revised Total Coliform RuleMONBack in compliance
  39. 2018-07-06Public NoticePN Violation for NPDWR ViolationBack in compliance
  40. 2018-06-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  41. 2018-05-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  42. 2018-04-27Public NoticePN Violation for NPDWR ViolationOpen
  43. 2018-04-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  44. 2018-03-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  45. 2018-03-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  46. 2018-02-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  47. 2018-01-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  48. 2017-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  49. 2017-08-01Revised Total Coliform RuleMONBack in compliance
  50. 2017-07-02Surface water treatment (LT2)Monitoring, Source Water (LT2)Back in compliance
  51. 2017-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  52. 2017-04-01Revised Total Coliform RuleMONBack in compliance
  53. 2016-12-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  54. 2016-04-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  55. 2016-02-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  56. 2016-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  57. 2016-02-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  58. 2016-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  59. 2016-01-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  60. 2015-10-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  61. 2015-10-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  62. 2015-09-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  63. 2015-09-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  64. 2015-08-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  65. 2015-08-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance

System details

Population served160
Service connections9
Water sourceGroundwater Under Influence
System typeTransient Non-Community
OwnerPrivate
StatusActive
CityLyons
EPA ZIP on file80540

Areas served

  • Boulder County

Reading this record

Stone Mountain Lodge and Cabins is a transient non-community that draws from groundwater under influence and serves about 160 people in Lyons, 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.