Hydrohistorian
Town of Merino
Serves Merino.
Modelled boundary. EPA estimated this service area (Random Forest) rather than tracing a utility-supplied map; treat the edge as approximate. About 0 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| NO 1 WELL | 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 ↗
Nothing open today, but 20 health-based violations appear 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: 0999=Chlorine.
What happened
All 20 violation records on file, grouped into the 4 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: Radionuclides -- radium, uranium and gross alpha.
Rule: Lead and Copper Rule -- corrosion of household plumbing.
Rule: Radionuclides -- radium, uranium and gross alpha.
Every violation record, as filed (12 of 20)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2018-04-01 – 2018-06-30 | MCL, Average | TTHM | health-based | returned to compliance (2018-10-25) | 0.0867 MG/L (limit 0.08) |
| 2018-04-01 – 2018-06-30 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 35.75 UG/L (limit 30.0) |
| 2018-01-01 – 2018-03-31 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 43.7 UG/L (limit 30.0) |
| 2018-01-01 – 2018-03-31 | MCL, Average | TTHM | health-based | returned to compliance (2018-10-25) | 0.100875 MG/L (limit 0.08) |
| 2017-10-01 – 2017-12-31 | MCL, Average | TTHM | health-based | returned to compliance (2018-10-25) | 0.08348 MG/L (limit 0.08) |
| 2016-04-01 – 2016-06-30 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 50.5 UG/L |
| 2015-01-01 – 2015-12-31 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 49.0 UG/L (limit 30.0) |
| 2014-01-01 – 2014-12-31 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 44.0 UG/L (limit 30.0) |
| 2013-04-01 | OCCT/SOWT Study/Recommendation | Lead and Copper Rule | health-based | returned to compliance (2015-07-08) | |
| 2012-01-01 – 2012-12-31 | MCL, Single Sample | Combined Uranium | health-based | returned to compliance (2019-12-18) | 56.0 UG/L (limit 30.0) |
| 2011-01-01 – 2011-12-31 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 57.0 UG/L (limit 30.0) |
| 2010-01-01 – 2010-12-31 | MCL, Average | Combined Uranium | health-based | returned to compliance (2019-12-18) | 60.0 UG/L (limit 30.0) |
The remaining 8 are on the ECHO report.
What the regulator did about it
59 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 |
|---|---|---|
| 2023-09-20 | St Compliance achieved Changing violation from 3A to 4B and SOXing; the system collected the sample on 8/23/2023 but result was reported on 9/20/2023. MM 9/26/2023 |
state |
| 2023-09-20 | St Compliance achieved SOXing: late reporting violation; the system collected the sample on 8/23/2023 but result was reported on 9/20/2023. MM 9/26/2023 |
state |
| 2023-09-19 | St Violation/Reminder Notice | state |
| 2023-09-19 | St Public Notif requested | state |
| 2023-09-19 | St Violation/Reminder Notice | state |
| 2023-09-19 | St Public Notif requested | state |
| 2023-06-26 | St Public Notif received PN requirement was satisfied with 2023 CCR. MM 6/29/2023 |
state |
| 2022-07-18 | St Violation/Reminder Notice | state |
| 2022-07-18 | St Public Notif requested | state |
| 2022-07-18 | St Compliance achieved CCR and COD submitted. slh 7/21/2022 |
state |
| 2022-01-12 | St Compliance achieved WQPs submitted as per rule. slh 4/5/2022 |
state |
| 2020-10-29 | St Compliance achieved System sampled the following two quarters and is now on reduced monitoring. |
state |
| 2020-10-29 | St Compliance achieved System sampled in 2nd 6M 2020 monitoring period. |
state |
| 2020-08-06 | St Violation/Reminder Notice | state |
| 2020-08-06 | St Public Notif requested | state |
| 2020-07-15 | St Compliance achieved System sampled from approved sites in 2nd 6M2019. |
state |
| 2020-05-12 | St Compliance achieved | state |
| 2020-03-31 | St Violation/Reminder Notice | state |
| 2020-01-15 | St Violation/Reminder Notice | state |
| 2020-01-15 | St Compliance achieved COD and Notice submitted through portal 1/16/2020, jlm. |
state |
20 most recent of 59; 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. Copper 2.6 mg/L against 1.3 mg/L, above it. 15 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 Merino, Colorado?
The Town of Merino is the public water system serving 235 people in Logan County, from groundwater. Its EPA public water system id is CO0138025.
Where does the Town of Merino get its water?
The Town of Merino reports groundwater as its primary source. EPA lists its source facilities as NO 1 WELL.
Does the Town of Merino have any drinking water violations?
EPA's compliance record shows no open health-based violations for the Town of Merino 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 Logan 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 →