Castle Rock, CO
Contamination score
Higher = more contaminated vs. other cities.
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Reported illness & cancer claims
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Self-reported issues
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Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
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Public water systems
CASTLE ROCK TOWN OF
- PWSID:
- CO0118010
- Source:
- Surface water
- Serves:
- 106,822 people
EPA & DEP violations
CASTLE ROCK TOWN OF
PWSID CO011801012 violationsMonitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005700 (code 36) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Jun 1, 2025 · 1 year ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005699 (code 36) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began May 1, 2025 · 1 year ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005683 (code 03) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Apr 1, 2022 · 4 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005684 (code 03) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Apr 1, 2022 · 4 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005685 (code 03) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Apr 1, 2022 · 4 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005686 (code 03) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Apr 1, 2022 · 4 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005687 (code 03) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Apr 1, 2022 · 4 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityOpenEPA SDWIS violation 3005688 (code 03) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Apr 1, 2022 · 4 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityResolvedEPA SDWIS violation 3005549 (code 36) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began May 1, 2019 · 7 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityResolvedEPA SDWIS violation 3005513 (code 36) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Oct 1, 2013 · 12 years ago · Source ↗
Monitoring violation — CASTLE ROCK TOWN OF
low severityResolvedEPA SDWIS violation 3005511 (code 36) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Monitoring violation · Began Sep 1, 2013 · 12 years ago · Source ↗
Other violation — CASTLE ROCK TOWN OF
low severityResolvedEPA SDWIS violation 3005507 (code 71) at CASTLE ROCK TOWN OF (PWSID CO0118010).
EPA SDWIS · Other violation · Began Jul 1, 2007 · 19 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.