Hydrohistorian
Town of Cheyenne Wells
Serves Cheyenne Wells.
Boundary traced from WSP. About 3 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| FEYH REDRILLED WELL | Well | Groundwater |
| NORTH REDRILLED WELL | Well | Groundwater |
| DOTY REDRILLED WELL | Well | Groundwater |
| SNYDER 1R | 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
No DWR structure on file records this system as its contact, and none of its EPA intakes matches a structure name in its districts. DWR records a contact on only a fraction of structures, and only for districts fetched from its live service, so this is absence of a record, not evidence of no rights.
Compliance record
Source Register of another agency · fetched 2026-09-09 · verify at EPA ECHO ↗
1 violation open now, none health-based. These are monitoring, reporting or notice requirements — a sample not taken, or a result not filed on time. They are real obligations, but they are not a finding about the water itself.
EPA's own summary: violations in 12 of the last 12 quarters. In violation for, in EPA's words: 7500=Public Notice. Currently: 7500=Public Notice.
What happened
All 6 violation records on file, grouped into the 5 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Public Notice Rule -- telling customers about a problem.
Rule: Nitrate and nitrite.
Rule: Arsenic.
Rule: Arsenic.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (6 of 6)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2020-05-06 | PN Violation without NPDWR Violation | Public Notice | other | open | |
| 2020-04-01 – 2020-06-30 | MCL, Average | Nitrate | health-based | returned to compliance (2020-09-23) | 11.0 MG/L (limit 10.0) |
| 2020-04-01 – 2020-06-30 | MCL, Average | Nitrate | health-based | returned to compliance (2020-09-30) | 11.0 MG/L (limit 10.0) |
| 2020-01-01 – 2020-03-31 | MCL, Average | Arsenic | health-based | returned to compliance (2020-09-23) | 0.0114 MG/L (limit 0.01) |
| 2019-10-01 – 2019-12-31 | MCL, Single Sample | Arsenic | health-based | returned to compliance (2020-09-23) | 0.01075 MG/L (limit 0.01) |
| 2015-02-01 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2017-04-20) |
What the regulator did about it
84 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 |
|---|---|---|
| 2021-08-16 | St Compliance achieved | state |
| 2021-08-03 | St Violation/Reminder Notice | state |
| 2021-02-09 | St Compliance achieved Analyte sampled in Feb 2021, SOXing 5/7/21, jlm. |
state |
| 2020-11-10 | St Compliance achieved | state |
| 2020-10-30 | St Violation/Reminder Notice | state |
| 2020-09-30 | St Compliance achieved System made the 009/009T well/EP an emergency source on 09/30/2020; jlm 9/30/2020. |
state |
| 2020-09-23 | St Compliance achieved System updated its monitoring plan and submitted corresponding documentation on 7/23/2020 indicating that 004 and 004T were locked and tagged out, making it an emergency source only; therefore, closed monitoring schedules and am SOX'ing these MCL violations; jlm 9/23/2020. |
state |
| 2020-09-15 | St Compliance achieved System reported results for required monitoring period of 1/1/17-12/31/19; jlm 9/15/2020. |
state |
| 2020-09-15 | St Compliance achieved System reported results for required monitoring period of 1/1/17-12/31/19; jlm 9/15/2020. |
state |
| 2020-08-24 | St Compliance achieved System sampled 6/22/2020 (correctly the following monitoring period, so SOXing violation); jlm 8/24/2020. |
state |
| 2020-07-15 | St Compliance achieved System sampled fluoride in April 2020 at 003T, 004T, 009T, and 011; jlm 7/15/2020. |
state |
| 2020-05-15 | St Violation/Reminder Notice | state |
| 2020-05-15 | St Public Notif requested | state |
| 2020-05-15 | St Violation/Reminder Notice | state |
| 2020-05-15 | St Public Notif requested | state |
| 2020-05-12 | St Violation/Reminder Notice | state |
| 2020-05-11 | St Compliance achieved System submitted PN to portal on 5/11/2020 and confirmed on 5/12/2020 that the PN was posted multiple places on 5/11 and 5/12/2020 and mailed to all customers on 5/12/2020, jlm 5/13/2020. |
state |
| 2020-05-11 | St Public Notif received | state |
| 2020-05-11 | St Public Notif received | state |
| 2020-05-08 | St Violation/Reminder Notice | state |
20 most recent of 84; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.004 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 2026-09-09 · 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 Cheyenne Wells, Colorado?
The Town of Cheyenne Wells is the public water system serving 840 people in Cheyenne County, from groundwater. Its EPA public water system id is CO0109006.
Where does the Town of Cheyenne Wells get its water?
The Town of Cheyenne Wells reports groundwater as its primary source. EPA lists its source facilities as FEYH REDRILLED WELL, NORTH REDRILLED WELL, DOTY REDRILLED WELL, SNYDER 1R.
Does the Town of Cheyenne Wells have any drinking water violations?
EPA's compliance record shows no open health-based violations for the Town of Cheyenne Wells 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 Cheyenne 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 →