Hydrohistorian
City of Englewood
Its service area also reaches Bear Creek (0.0%).
Boundary traced. About 20 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| MCLELLAN RESERVOIR | Intake | Surface water |
| SOUTH PLATTE | Intake | Surface water |
| CITY DITCH | Intake | Surface water |
| MCBROOM DITCH BEAR CREEK | 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
2 structures on DWR's record 2 match 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 |
|---|---|---|---|---|
| SOUTH PLATTE PL 0900513 | 7 | BEAR CREEK | Bear Creek | intake name: SOUTH PLATTE |
| SOUTH PLATTE PUMP 0801023 | 8 | SOUTH PLATTE RIVER | South Platte Cheesman to Denver Gage | intake name: SOUTH PLATTE |
Compliance record
Source Register of another agency · fetched 2026-10-07 · verify at EPA ECHO ↗
Nothing open today, but 1 health-based violation appears on the federal record historically. The history is below.
EPA's own summary: violations in 1 of the last 12 quarters. In violation for, in EPA's words: 1011=Bromate.
What happened
All 1 violation record on file, grouped into the 1 distinct thing EPA's codes describe. Dates are the compliance period the violation is filed against.
EPA violation code 1A, contaminant 8000 — not in the code table this build carries.
Every violation record, as filed (1 of 1)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2021-08-01 – 2021-08-31 | code 1A | Revised Total Coliform Rule | health-based | returned to compliance (2021-08-17) |
What the regulator did about it
17 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 |
|---|---|---|
| 2025-08-11 | St Violation/Reminder Notice | state |
| 2025-08-11 | St Public Notif requested | state |
| 2025-08-11 | St Compliance achieved | state |
| 2022-04-04 | St Compliance achieved | state |
| 2022-03-14 | St Violation/Reminder Notice | state |
| 2022-03-14 | St Public Notif requested | state |
| 2022-03-14 | St Violation/Reminder Notice | state |
| 2022-03-14 | St Public Notif requested | state |
| 2021-08-17 | St Compliance achieved | state |
| 2021-08-12 | St Public Notif received | state |
| 2021-08-04 | St Boil Water Order | state |
| 2021-08-04 | St Violation/Reminder Notice | state |
| 2021-08-04 | St Public Notif requested | state |
| 2021-07-15 | St Compliance achieved | state |
| 2021-07-14 | St Violation/Reminder Notice | state |
| 2021-07-14 | St Public Notif requested | state |
| 2016-04-01 | St Compliance achieved | state |
Lead and copper
The latest 90th-percentile lead result is 0.005 mg/L (sampling period ending 2026-12-31) against an action level of 0.015 mg/L, below it. 11 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 ↗
4 samples, 120 results, 2024-07-11 to 2025-04-22. 5 of the 29 PFAS were detected at least once; lithium was measured up to 24.9 µg/L (no federal limit). PFOA measured up to 0.004 µg/L, at or above EPA's 2024 limit of 0.004 µg/L.
| Contaminant | Results | Detected | Highest, µg/L | Reporting limit |
|---|---|---|---|---|
| HFPO-DA | 4 | 0 | < 0.005 | 0.005 |
| PFBA | 4 | 1 | 0.0064 | 0.005 |
| PFBS | 4 | 3 | 0.0058 | 0.003 |
| PFHxA | 4 | 3 | 0.0055 | 0.003 |
| PFHxS | 4 | 0 | < 0.003 | 0.003 |
| PFNA | 4 | 0 | < 0.004 | 0.004 |
| PFOA | 4 | 1 | 0.004 (≥ 0.004 MCL) | 0.004 |
| PFOS | 4 | 0 | < 0.004 | 0.004 |
| PFPeA | 4 | 3 | 0.0058 | 0.003 |
| lithium | 4 | 4 | 24.9 | 9.0 |
Rows shown: every detected contaminant plus the regulated PFAS and lithium; the rest were below their reporting limits. These are UCMR monitoring samples, not compliance samples. EPA's April 2024 rule set 4.0 ng/L (0.004 µg/L) for PFOA and PFOS, the same as UCMR 5's reporting limit, so any detection of either is at or above it; the rule's compliance date and its other limits have been under revision since 2025 and are not applied here. State PFAS sampling is on CDPHE's pages ↗.
Common questions
Who provides drinking water in Englewood, Colorado?
The City of Englewood is the public water system serving 57,332 people in Arapahoe County, from surface water. Its EPA public water system id is CO0103045.
Where does the City of Englewood get its water?
The City of Englewood reports surface water as its primary source. EPA lists its source facilities as MCLELLAN RESERVOIR, SOUTH PLATTE, CITY DITCH, MCBROOM DITCH BEAR CREEK.
Does the City of Englewood have any drinking water violations?
EPA's compliance record shows no open health-based violations for the City of Englewood at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Places this system serves
Census places its EPA service-area boundary substantially covers. Each page lists every system serving that place.
Every provider in Arapahoe 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 →