Lake Sanchez Estates☆

Where the water comes from

Facility	Kind	Water
LODGE WELL	Well	Groundwater
WELL 712	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 ↗

EPA's own summary: violations in 12 of the last 12 quarters. In violation for, in EPA's words: 0999=Chlorine; 7500=Public Notice; 8000=Revised Total Coliform Rule. Currently: 7500=Public Notice.

What happened

All 9 violation records on file, grouped into the 4 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.

Every violation record, as filed (9 of 9)

Compliance period	What	About	Kind	Status	Measured
2022-10-27	PN Violation without NPDWR Violation	Public Notice	other	open
2020-02-11	Failure To Address Deficiency	Groundwater Rule	health-based	returned to compliance (2020-12-28)
2020-02-11	Failure To Address Deficiency	Groundwater Rule	health-based	returned to compliance (2021-05-16)
2020-02-11	Failure To Address Deficiency	Groundwater Rule	health-based	returned to compliance (2023-02-28)
2020-02-11	Failure To Address Deficiency	Groundwater Rule	health-based	returned to compliance (2020-09-25)
2020-02-11	Failure To Address Deficiency	Groundwater Rule	health-based	returned to compliance (2021-03-25)
2020-02-11	Failure To Address Deficiency	Groundwater Rule	health-based	returned to compliance (2020-12-28)
2019-11-01	Treatment Technique No Certif. Operator	DBP Stage 1	health-based	returned to compliance (2020-08-20)
2019-05-02	code 2C	Revised Total Coliform Rule	health-based	returned to compliance (2020-11-30)

What the regulator did about it

216 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.

20 most recent of 216; 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. 6 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 Alamosa, Colorado?

Lake Sanchez Estates is the public water system serving 34 people in Costilla County, from groundwater. Its EPA public water system id is CO0212466.

Where does Lake Sanchez Estates get its water?

Lake Sanchez Estates reports groundwater as its primary source. EPA lists its source facilities as LODGE WELL, WELL 712.

Does Lake Sanchez Estates have any drinking water violations?

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