Hydrohistorian
Evergreen Lake Company
Modelled boundary. EPA estimated this service area (Random Forest) rather than tracing a utility-supplied map; treat the edge as approximate. About 4 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| EVERGREEN LAKE | Intake | Surface water |
These are EPA's facility records, not DWR structures. Which decreed rights sit behind an intake is the next phase; nothing here is inferred.
DWR structures that name this system
Source Probable join · fetched 2026-10-06 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier
1 structure on DWR's record 1 matches an EPA intake by name. A match says who DWR lists, not who owns the water: a ditch company can own the headgate while the system owns shares, and a consultant can be the contact. The dossier holds the decree.
| Structure | Type | Source | District | Matched on |
|---|---|---|---|---|
| EVERGREEN LAKE 6203555 | 3 | LITTLE BLUE CREEK | Upper Gunnison River | intake name: EVERGREEN LAKE |
Compliance record
Source Register of another agency · fetched 2026-10-07 · verify at EPA ECHO ↗
Nothing open today, but 6 health-based violations appear on the federal record historically. The history is below.
EPA's own summary: violations in 0 of the last 12 quarters.
What happened
All 6 violation records on file, grouped into the 3 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Surface Water Treatment Rule -- filtration and disinfection.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Rule: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (6 of 6)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2022-12-01 – 2022-12-31 | Treatment Technique (SWTR and GWR) | SWTR | health-based | returned to compliance (2023-02-01) | |
| 2022-11-01 – 2022-11-30 | Treatment Technique (SWTR and GWR) | SWTR | health-based | returned to compliance (2023-02-01) | |
| 2022-10-01 – 2022-10-31 | Treatment Technique (SWTR and GWR) | SWTR | health-based | returned to compliance (2023-02-01) | |
| 2018-05-01 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2018-05-24) | |
| 2018-04-01 – 2018-06-30 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | returned to compliance (2018-09-05) | 71.0 UG/L (limit 60.0) |
| 2015-09-02 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2015-09-14) |
What the regulator did about it
23 enforcement actions on this system's federal record. In Colorado the state is the primacy agency, so most actions are the state's; EPA acts directly on tribal systems and when it steps in.
| Date | Action | By |
|---|---|---|
| 2024-03-08 | St Public Notif received | state |
| 2024-03-08 | St Public Notif received | state |
| 2024-03-08 | St Public Notif received | state |
| 2024-02-23 | St Violation/Reminder Notice | state |
| 2024-02-23 | St Public Notif requested | state |
| 2024-02-23 | St Violation/Reminder Notice | state |
| 2024-02-23 | St Public Notif requested | state |
| 2024-02-23 | St Violation/Reminder Notice | state |
| 2024-02-23 | St Public Notif requested | state |
| 2023-02-01 | St Compliance achieved SOXing: operated properly and reported correctly for January 2023; no additional M&R or TT violations in accordance with the Rule. MM2/23/2024 |
state |
| 2021-09-01 | St Compliance achieved | state |
| 2021-08-13 | St Violation/Reminder Notice | state |
| 2021-08-13 | St Public Notif requested | state |
| 2021-08-13 | St Violation/Reminder Notice | state |
| 2021-08-13 | St Public Notif requested | state |
| 2018-09-05 | St Compliance achieved RTC with no MCL violation the next qtr. ejc |
state |
| 2018-06-18 | St Public Notif received | state |
| 2018-06-18 | St Public Notif received | state |
| 2018-05-31 | St Violation/Reminder Notice | state |
| 2018-05-31 | St Public Notif requested | state |
20 most recent of 23; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.002 mg/L (sampling period ending 2025-12-31) against an action level of 0.015 mg/L, below it. 7 results on file.
The action level is not a health limit: it is the level at which the rule requires a system to act (corrosion control, public education, and in some cases replacing lead service lines). Lead mostly enters water from household plumbing, so a system-wide percentile does not tell you what comes out of one tap.
Violation, enforcement and lead/copper records are EPA SDWIS federal reporting, fetched monthly; the summary is EPA ECHO. Code names come from EPA's own REF_CODE_VALUE table. SDWIS carries violations, not routine sample results — nitrate, disinfection by-product and PFAS values are not in it, and a clean record here means nothing was reported as a violation, not that nothing was ever detected. For what was measured, ask the system for its Consumer Confidence Report.
PFAS and lithium: EPA's UCMR 5 monitoring, 2023–2025
Source Register of another agency · fetched 2026-10-09 · verify at EPA UCMR occurrence data ↗
EPA did not sample this system under UCMR 5 (the rule covered every system serving more than 3,300 people and a drawn sample of smaller ones).
Common questions
Who provides drinking water in Cimarron, Colorado?
Evergreen Lake Company is the public water system serving 431 people in Gunnison County, from surface water. Its EPA public water system id is CO0126121.
Where does Evergreen Lake Company get its water?
Evergreen Lake Company reports surface water as its primary source. EPA lists its source facilities as EVERGREEN LAKE.
Does Evergreen Lake Company have any drinking water violations?
EPA's compliance record shows no open health-based violations for Evergreen Lake Company at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Every provider in Gunnison County.
The record
EPA SDWIS federal reporting as of 2026-10-06; the compliance record above is EPA's own, fetched monthly, and the ECHO report carries the rest. Report a problem →