Hydrohistorian
Lookout Mountain Water District
Its service area also reaches Bear Creek (28.0%).
Boundary traced from WSP. About 9 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| LOWER BEAVER BROOK RESERVOIR | 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 2026-09-09 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier
2 structures on DWR's record name this system as their contact (2). 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 |
|---|---|---|---|---|
| BEAVER BROOK RES 3A 0700517 | RESERVOIR | BEAVER BROOK | Clear Creek | contact: LOOKOUT MOUNTAIN WATER DISTRICT (SHEA, CHRISTINA) |
| GOLDEN PIPELINE 1 0700712 | PIPELINE | BEAVER BROOK | Clear Creek | contact: LOOKOUT MOUNTAIN WATER DISTRICT (SHEA, CHRISTINA) |
Compliance record
Source Register of another agency · fetched 2026-09-09 · verify at EPA ECHO ↗
Nothing open today, but 13 health-based violations appear on the federal record historically. The history is below.
EPA's own summary: violations in 3 of the last 12 quarters. In violation for, in EPA's words: 2456=Total Haloacetic Acids (HAA5); 2950=TTHM.
What happened
All 13 violation records on file, grouped into the 2 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Rule: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (12 of 13)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | MCL, Average | TTHM | health-based | returned to compliance (2024-10-07) | 0.09064 MG/L (limit 0.08) |
| 2023-10-01 – 2023-12-31 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | returned to compliance (2024-02-28) | 0.06265 MG/L (limit 0.06) |
| 2023-10-01 – 2023-12-31 | MCL, Average | TTHM | health-based | returned to compliance (2024-02-28) | 0.08226 MG/L (limit 0.08) |
| 2023-07-01 – 2023-09-30 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | returned to compliance (2024-02-28) | 0.061 MG/L (limit 0.06) |
| 2023-07-01 – 2023-09-30 | MCL, Average | TTHM | health-based | returned to compliance (2024-02-28) | 0.092 MG/L (limit 0.08) |
| 2023-01-01 – 2023-03-31 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | returned to compliance (2023-05-22) | 0.073 MG/L (limit 0.06) |
| 2023-01-01 – 2023-03-31 | MCL, Average | TTHM | health-based | returned to compliance (2023-05-22) | 0.099 MG/L (limit 0.08) |
| 2022-10-01 – 2022-12-31 | MCL, Average | TTHM | health-based | returned to compliance (2023-05-22) | 0.11025 MG/L (limit 0.08) |
| 2022-07-01 – 2022-09-30 | MCL, Average | Total Haloacetic Acids (HAA5) | health-based | returned to compliance (2023-05-22) | 0.06488 MG/L (limit 0.06) |
| 2022-07-01 – 2022-09-30 | MCL, Average | TTHM | health-based | returned to compliance (2023-05-22) | 0.09855 MG/L (limit 0.08) |
| 2022-04-01 – 2022-06-30 | MCL, Average | TTHM | health-based | returned to compliance (2023-05-22) | 0.0886 MG/L (limit 0.08) |
| 2020-04-01 – 2020-06-30 | MCL, Average | TTHM | health-based | returned to compliance (2020-09-21) | 81.26 UG/L (limit 80.0) |
The remaining 1 are on the ECHO report.
What the regulator did about it
50 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 |
|---|---|---|
| 2024-10-07 | St Compliance achieved Soxing with a 10/7/2024 date, system did not exceed for Q3 2024 lmf 11/5/2024 |
state |
| 2024-06-04 | St Public Notif received | state |
| 2024-05-29 | St Violation/Reminder Notice | state |
| 2024-05-29 | St Public Notif requested | state |
| 2024-02-28 | St Compliance achieved Returning to Compliance using Q12024 data, using state notification date lmf 6/3/2024 |
state |
| 2024-01-02 | St Public Notif received | state |
| 2023-12-13 | St Violation/Reminder Notice | state |
| 2023-12-13 | St Public Notif requested | state |
| 2023-10-02 | St Public Notif received | state |
| 2023-10-02 | St Public Notif received | state |
| 2023-09-12 | St Violation/Reminder Notice | state |
| 2023-09-12 | St Public Notif requested | state |
| 2023-09-12 | St Violation/Reminder Notice | state |
| 2023-09-12 | St Public Notif requested | state |
| 2023-06-15 | St Boil Water Order BWA |
state |
| 2023-05-22 | St Compliance achieved System did not have a MCL in 2Q2023 lmf 11/3/2023 |
state |
| 2023-05-01 | St Compliance achieved April MOR submitted without violations. slh 9/20/2023 |
state |
| 2023-04-17 | St Violation/Reminder Notice | state |
| 2023-04-17 | St Public Notif requested | state |
| 2023-03-30 | St Public Notif received | state |
20 most recent of 50; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.0 mg/L (sampling period ending 2025-12-31) against an action level of 0.015 mg/L, below it. 8 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 2026-09-09 · 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 Wheat Ridge, Colorado?
Lookout Mountain Water District is the public water system serving 1,378 people in Clear Creek County, from surface water. Its EPA public water system id is CO0110026.
Where does Lookout Mountain Water District get its water?
Lookout Mountain Water District reports surface water as its primary source. EPA lists its source facilities as LOWER BEAVER BROOK RESERVOIR.
Does Lookout Mountain Water District have any drinking water violations?
EPA's compliance record shows no open health-based violations for Lookout Mountain Water District at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Every provider in Clear Creek County.
The record
EPA SDWIS federal reporting as of 2026-09-08; the compliance record above is EPA's own, fetched monthly, and the ECHO report carries the rest. Report a problem →