← All Colorado water providers

Knolls at Durango Homeowners Association

Knolls at Durango Homeowners Association is the public water system serving 150 people in La Plata County, from groundwater. EPA modelled this service area rather than tracing it from a utility map, so treat the edge as approximate.
Community system · EPA id CO0134515 · filed with EPA as “KNOLLS AT DURANGO HOA”
People served
150
Service connections
32
Primary source
Groundwater
Owner
Private
Counties served
La Plata
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
WELL NO 1WellGroundwater
WELL NO 3WellGroundwater

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 1 health-based violation appears on the federal record historically. The history is below.

EPA's own summary: violations in 7 of the last 12 quarters. In violation for, in EPA's words: 0999=Chlorine; 2456=Total Haloacetic Acids (HAA5); 2950=TTHM.

What happened

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

Treatment Technique No Certif. Operator — DBP Stage 1 health-based
A required treatment step was not carried out or not proved. 1 record, 2020-02-01.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (1 of 1)
Compliance periodWhatAboutKindStatusMeasured
2020-02-01 Treatment Technique No Certif. Operator DBP Stage 1 health-based returned to compliance (2020-03-02)

What the regulator did about it

22 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
2025-10-24 St Violation/Reminder Notice state
2025-10-24 St Public Notif requested state
2025-10-24 St Violation/Reminder Notice state
2025-10-24 St Public Notif requested state
2025-10-14 St Compliance achieved
System properly collected triggered source water sample on 10.6.25 and reported 10.14.25 RNK 10.27.25
state
2025-10-14 St Compliance achieved
System collected TC repeats with associated chlorine residuals the following monday on 10.6.25 and reported 10.14.25 RNK 11.5.25
state
2024-08-14 St Compliance achieved state
2023-10-19 St Violation/Reminder Notice state
2023-10-19 St Public Notif requested state
2021-12-23 St Violation/Reminder Notice state
2021-12-23 St Public Notif requested state
2021-12-20 St Compliance achieved state
2020-03-05 St Public Notif received state
2020-03-02 St Compliance achieved
Operator renewed distribution certification. Verified on CCWP website. STY 3/2/2020
state
2020-02-07 St Violation/Reminder Notice state
2020-02-07 St Public Notif requested state
2018-06-07 St Violation/Reminder Notice state
2018-06-07 St Public Notif requested state
2018-06-07 St Violation/Reminder Notice state
2018-06-07 St Public Notif requested state

20 most recent of 22; 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. 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 Durango, Colorado?

Knolls at Durango Homeowners Association is the public water system serving 150 people in La Plata County, from groundwater. Its EPA public water system id is CO0134515.

Where does Knolls at Durango Homeowners Association get its water?

Knolls at Durango Homeowners Association reports groundwater as its primary source. EPA lists its source facilities as WELL NO 1, WELL NO 3.

Does Knolls at Durango Homeowners Association have any drinking water violations?

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

Every provider in La Plata 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 →