EPA SDWIS Compliance Records
Drinking Water Compliance Report for Denver, CO
5 public water systems serve Denver — real federal compliance history, not a marketing claim.
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Water systems serving this city
130
Total compliance records on file
1
Health-based violations
What this means for your tap water: a "health-based" violation means a system exceeded an actual contaminant safety threshold at some point — different from a paperwork or reporting violation, which is far more common and far less concerning. Denver's systems average 0.6 health-based violations each, ranking about middle-of-the-pack (#15 of 20 we track). Which specific system serves your address determines whether that history applies to you — check the list below rather than assuming.
Systems Serving Denver
DENVER WATER BOARD
1,287,000 people served128 violations on record, none health-based.
- January 2014 — MR— resolved
- January 2014 — MR— resolved
- January 2014 — MR— resolved
- January 2014 — MR— resolved
- January 2014 — MR— resolved
CRESTVIEW WSD
23,756 people servedNo violations on record.
CHERRY CREEK VALLEY WSD
22,000 people servedNo violations on record.
BANCROFT WTR & SAN DIST
15,200 people servedNo violations on record.
NORTH WASHINGTON STREET WSD
14,500 people served2 violations on record, including health-based violations.
- July 2022 — Other— resolved
- May 2019 — TT(health-based)— resolved
Source: EPA Safe Drinking Water Information System (SDWIS), via Envirofacts. Water-system-level records, not address-specific — homes on private wells or served by a different system than listed here aren't reflected. A resolved violation means the system returned to compliance; it doesn't mean water quality is currently at risk.
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