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Blue Mountain Water District

Blue Mountain Water District is the public water system serving 350 people in Jefferson County, from groundwater.
Community system · EPA id CO0130005 · filed with EPA as “BLUE MOUNTAIN WD”
People served
350
Service connections
116
Primary source
Groundwater
Owner
Local government
Counties served
Jefferson
Water district

Its service area also reaches Boulder Creek (33.0%), South Platte: Denver Gage to Greeley (14.0%).

Boundary traced from IRE. About 3 km².

Where the water comes from

FacilityKindWater
WELL 5AWellGroundwater
WELL NO 7WellGroundwater
WELL NO 8WellGroundwater
WELL NO 9WellGroundwater
WELL NO 10WellGroundwater
WELL NO 11WellGroundwater
WELL NO 3WellGroundwater
WELL NO 4WellGroundwater
WELL NO 6WellGroundwater
WELL NO 12WellGroundwater

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 ↗

No open violation and no health-based violation on EPA's federal record for this system at the last monthly fetch. That is a record of reported compliance, not a test result: SDWIS carries violations, not routine sample values.

EPA's own summary: violations in 0 of the last 12 quarters.

No health-based or open violation on the federal record for this system.

What the regulator did about it

8 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
2023-10-30 St Boil Water Order
BWA
state
2022-05-17 St Compliance achieved
Collected samples on 5/17/2022. slh 7/21/2022
state
2022-01-14 St Violation/Reminder Notice state
2022-01-14 St Public Notif requested state
2022-01-14 St Violation/Reminder Notice state
2022-01-14 St Public Notif requested state
2022-01-14 St Violation/Reminder Notice state
2022-01-14 St Public Notif requested state

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. 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 Wheat Ridge, Colorado?

Blue Mountain Water District is the public water system serving 350 people in Jefferson County, from groundwater. Its EPA public water system id is CO0130005.

Where does Blue Mountain Water District get its water?

Blue Mountain Water District reports groundwater as its primary source. EPA lists its source facilities as WELL 5A, WELL NO 7, WELL NO 8, WELL NO 9.

Does Blue Mountain Water District have any drinking water violations?

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

Every provider in Jefferson 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 →