Hornbrook, CA
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
HORNBROOK C.S.D.
- PWSID:
- CA4700513
- Source:
- Ground water
- Serves:
- 280 people
EPA & DEP violations
HORNBROOK C.S.D.
PWSID CA47005139 violationsTreatment technique violation — HORNBROOK C.S.D.
high severityHealth-basedResolvedEPA SDWIS violation 9701018 (code 12) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Treatment technique violation · Began Dec 31, 2024 · 1 year ago · Source ↗
Treatment technique violation — HORNBROOK C.S.D.
high severityHealth-basedOpenEPA SDWIS violation 9701016 (code 2E) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Treatment technique violation · Began Oct 17, 2024 · 1 year ago · Source ↗
Reporting violation — HORNBROOK C.S.D.
low severityOpenEPA SDWIS violation 9701017 (code 4G) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Reporting violation · Began Oct 17, 2024 · 1 year ago · Source ↗
Treatment technique violation — HORNBROOK C.S.D.
high severityHealth-basedResolvedEPA SDWIS violation 9701015 (code 12) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Treatment technique violation · Began May 28, 2024 · 2 years ago · Source ↗
Treatment technique violation — HORNBROOK C.S.D.
high severityHealth-basedResolvedEPA SDWIS violation 9701010 (code 12) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Treatment technique violation · Began Sep 1, 2019 · 6 years ago · Source ↗
Other violation — HORNBROOK C.S.D.
low severityOpenEPA SDWIS violation 9701009 (code 10) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Other violation · Began Aug 1, 2019 · 7 years ago · Source ↗
Treatment technique violation — HORNBROOK C.S.D.
high severityHealth-basedResolvedEPA SDWIS violation 9701008 (code 12) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Treatment technique violation · Began Jul 1, 2019 · 7 years ago · Source ↗
Monitoring violation — HORNBROOK C.S.D.
low severityResolvedEPA SDWIS violation 9701006 (code 23) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Monitoring violation · Began Oct 1, 2015 · 10 years ago · Source ↗
Treatment technique violation — HORNBROOK C.S.D.
high severityHealth-basedResolvedEPA SDWIS violation 9301002 (code 41) at HORNBROOK C.S.D. (PWSID CA4700513).
EPA SDWIS · Treatment technique violation · Began Jun 1, 1993 · 33 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
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