Hydrohistorian
Town of Keenesburg
Serves Keenesburg.
Modelled boundary. EPA estimated this service area (Random Forest) rather than tracing a utility-supplied map; treat the edge as approximate. About 3 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| NO 2 WELL SYPIAN | Well | Groundwater |
| WELL NO 5 FLURRIES POND | Well | Groundwater |
| 7 WELL AT TANK SITE | Well | Groundwater |
| WELL NO 11 LOST CREEK | Well | Groundwater |
| WELL NO 14 | Well | Groundwater |
| WELL NO 4R | Well | Groundwater |
| WELL NO 15 | Well | Groundwater |
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
7 structures on DWR's record 7 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 |
|---|---|---|---|---|
| LOST CREEK PUMP STATION 0100938 | 8 | SOUTH PLATTE RIVER | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
| LOST CREEK RES 1 0103599 | 3 | LOST CREEK | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
| LOST CREEK RES 2 0103600 | 3 | LOST CREEK | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
| LOST CREEK RES 3 0103601 | 3 | LOST CREEK | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
| LOST CREEK RES 4 0103602 | 3 | LOST CREEK | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
| LOST CREEK RES 5 0103603 | 3 | LOST CREEK | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
| LOST CREEK RES 6 0103604 | 3 | LOST CREEK | South Platte: Greeley to Balzac | intake name: WELL NO 11 LOST CREEK |
Compliance record
Source Register of another agency · fetched 2026-09-09 · verify at EPA ECHO ↗
Nothing open today, but 2 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 2 violation records on file, grouped into the 1 distinct thing EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (2 of 2)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2019-04-01 – 2019-06-30 | MCL, Average | TTHM | health-based | returned to compliance (2020-06-30) | 0.087 MG/L (limit 0.08) |
| 2018-07-01 – 2018-09-30 | MCL, Average | TTHM | health-based | returned to compliance (2018-11-30) | 0.0854 MG/L (limit 0.08) |
What the regulator did about it
21 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 |
|---|---|---|
| 2021-08-18 | St Compliance achieved | state |
| 2021-01-21 | St Violation/Reminder Notice | state |
| 2021-01-21 | St Public Notif requested | state |
| 2020-06-30 | St Compliance achieved multiple Q with no additional MCL exceedances. LAC 7/14/2020 |
state |
| 2019-11-19 | St Compliance achieved system had 2 quarters without an additional exceedance. LAC 2/10/2020 |
state |
| 2019-08-23 | St Compliance achieved PN performed on 8/23/2019. LAC 8/26/2019 |
state |
| 2019-08-23 | St Public Notif received | state |
| 2019-08-21 | St Violation/Reminder Notice failure to do PN. LAC 8/21/2019 |
state |
| 2019-06-06 | St Violation/Reminder Notice | state |
| 2019-06-06 | St Public Notif requested | state |
| 2018-11-30 | St Compliance achieved | state |
| 2018-09-12 | St Public Notif received | state |
| 2018-08-22 | St Violation/Reminder Notice | state |
| 2018-08-22 | St Public Notif requested | state |
| 2017-11-02 | St Compliance achieved RTC with next quarter's sampling. ejc |
state |
| 2017-06-06 | St Public Notif received | state |
| 2017-01-06 | St Violation/Reminder Notice | state |
| 2017-01-06 | St Public Notif requested | state |
| 2016-09-30 | St Compliance achieved | state |
| 2016-08-05 | St Violation/Reminder Notice | state |
20 most recent of 21; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.003 mg/L (sampling period ending 2025-06-30) against an action level of 0.015 mg/L, below it. 12 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 Keenesburg, Colorado?
The Town of Keenesburg is the public water system serving 4,650 people in Weld County, from groundwater. Its EPA public water system id is CO0162438.
Where does the Town of Keenesburg get its water?
The Town of Keenesburg reports groundwater as its primary source. EPA lists its source facilities as NO 2 WELL SYPIAN, WELL NO 5 FLURRIES POND, 7 WELL AT TANK SITE, WELL NO 11 LOST CREEK.
Does the Town of Keenesburg have any drinking water violations?
EPA's compliance record shows no open health-based violations for the Town of Keenesburg 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 Weld 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 →