BOULDER, CO · Boulder County
SHANNON WSD Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- CO0107710
- System type
- Community Water System
- Population served
- 450
- Service connections
- 160
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
May 1, 1994 – May 31, 1994
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1991 – September 30, 1991
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| May 1, 1994 – May 31, 1994 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| September 1, 1991 – September 30, 1991 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- April 4, 2008State Compliance achieved23 linked violations
- May 1, 2002State Formal Notice of Violation issued5 linked violations
- May 1, 2002State Public Notification requested1 linked violation
Contact
SULKA, MIKE
303-907-8512
BOULDER, CO 80303