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Mcclave Water Association Inc.

Mcclave Water Association Inc. is the public water system serving 378 people in Bent County, from groundwater. It buys water from Hasty Water Authority. It also sells water wholesale to 1 system. EPA modelled this service area rather than tracing it from a utility map, so treat the edge as approximate.
Community system · EPA id CO0106500 · filed with EPA as “MCCLAVE WA INC”
People served
378
Service connections
155
Primary source
Groundwater
Owner
Private
Counties served
Bent
Water district

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

FacilityKindWater
GILL FARMS NO 1 WELLWellGroundwater
OHLSON I WELL GASKILLWellGroundwater
OHLSON II WELL NO 2WellGroundwater
GILL WELL 1WellGroundwater
MCCLAVE AND HASTY INTERCONNECTIONConsecutive connection (purchased)Groundwater · from HASTY WATER AUTHORITY

These are EPA's facility records, not DWR structures. Which decreed rights sit behind an intake is the next phase; nothing here is inferred.

Wholesale connections

Buys water from HASTY WATER AUTHORITY.

Sells water to 1 system: HASTY WATER AUTHORITY.

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 4 health-based violations appear on the federal record historically. The history is below.

EPA's own summary: violations in 5 of the last 12 quarters. In violation for, in EPA's words: 2039=Di(2-ethylhexyl) phthalate; 4010=Combined Radium (-226 and -228).

What happened

All 4 violation records on file, grouped into the 1 distinct thing EPA's codes describe. Dates are the compliance period the violation is filed against.

MCL, Average — Combined Radium (-226 and -228) health-based
A measured contaminant level went over the federal limit. 4 records, 2021-04-01 to 2022-01-01. Highest measured: 7.0 PCI/L against a limit of 5.0.
Rule: Radionuclides -- radium, uranium and gross alpha.
Every violation record, as filed (4 of 4)
Compliance periodWhatAboutKindStatusMeasured
2022-01-01 – 2022-03-31 MCL, Average Combined Radium (-226 and -228) health-based returned to compliance (2023-11-08) 6.67 PCI/L (limit 5.0)
2021-10-01 – 2021-12-31 MCL, Average Combined Radium (-226 and -228) health-based returned to compliance (2023-11-08) 6.8 PCI/L (limit 5.0)
2021-07-01 – 2021-09-30 MCL, Average Combined Radium (-226 and -228) health-based returned to compliance (2023-11-08) 7.0 PCI/L (limit 5.0)
2021-04-01 – 2021-06-30 MCL, Average Combined Radium (-226 and -228) health-based returned to compliance (2023-11-08) 6.85 PCI/L

What the regulator did about it

42 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.

DateActionBy
2025-01-22 St Violation/Reminder Notice state
2024-08-12 St Violation/Reminder Notice state
2024-08-12 St Violation/Reminder Notice state
2024-08-12 St Violation/Reminder Notice state
2024-08-12 St Violation/Reminder Notice state
2024-08-12 St Violation/Reminder Notice state
2024-08-12 St Violation/Reminder Notice state
2024-06-24 St Compliance achieved state
2024-05-16 St Compliance achieved state
2024-05-09 St Violation/Reminder Notice state
2024-05-09 St Public Notif requested state
2023-11-08 St Compliance achieved state
2023-08-03 St Compliance achieved state
2023-07-19 St Violation/Reminder Notice state
2023-07-19 St Public Notif requested state
2022-05-31 St Public Notif requested state
2022-05-31 St AO (w/o penalty) issued
DW.05.22.106500 issued on 5/31/22. AVC Order. ejc
state
2022-03-08 St Public Notif received state
2022-03-08 St Public Notif received state
2022-02-15 St Violation/Reminder Notice state

20 most recent of 42; the rest are on the ECHO report.

Lead and copper

The latest 90th-percentile lead result is 0.001 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 Mcclave, Colorado?

Mcclave Water Association Inc. is the public water system serving 378 people in Bent County, from groundwater. Its EPA public water system id is CO0106500.

Where does Mcclave Water Association Inc. get its water?

Mcclave Water Association Inc. reports groundwater as its primary source. EPA lists its source facilities as GILL FARMS NO 1 WELL, OHLSON I WELL GASKILL, OHLSON II WELL NO 2, GILL WELL 1.

Does Mcclave Water Association Inc. have any drinking water violations?

EPA's compliance record shows no open health-based violations for Mcclave Water Association Inc. at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.

Every provider in Bent 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 →