DENVER, CO · Boulder County
BENCHMARK WSD Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of July 9, 2007. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Boulder County, CO.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.
System facts
- System ID (PWSID)
- CO0107138
- System type
- Community Water System
- Population served
- 0
- Service connections
- 12
- Ownership
- local government
- Water source
- groundwater (wells)
BENCHMARK WSD formerly served 0 people from groundwater.
EPA's federal records list this system as inactive in 2007; the record below is historical.
As of August 1, 2026, its federal record holds 1 entry in 1995, all of which EPA lists as closed. Nothing has been added since 1995.
All 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules.
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 1995 – April 30, 1995
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 1995 – April 30, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- May 30, 1995State Formal Notice of Violation issued1 linked violation
- May 30, 1995State Public Notification requested1 linked violation
- October 9, 1992State Formal Notice of Violation issued14 linked violations
Last known contact on file (system is inactive)
Not on record
303-931-6567
DENVER, CO 80205