Gilbert, AZ
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
Gilbert, Town Of
- PWSID:
- AZ0407092
- Source:
- Surface water
- Serves:
- 247,600 people
Sontel Water Coop
- PWSID:
- AZ0407900
- Source:
- Ground water
- Serves:
- 80 people
EPA & DEP violations
Gilbert, Town Of
PWSID AZ040709216 violationsRevised Total Coliform Rule — RPT violation
medium severityUnaddressedRevised Total Coliform Rule RPT violation (Unaddressed).
EPA SDWIS · RPT · Began Feb 1, 2026 · 6 months ago · Source ↗
Bromate — MR violation
medium severityArchivedBromate MR violation (Archived).
EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗
Lead and Copper Rule — MR violation
medium severityUnaddressedLead and Copper Rule MR violation (Unaddressed).
EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityResolvedSurface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Dec 1, 2025 · 8 months ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityResolvedInterim Enhanced Surface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityResolvedSurface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityResolvedInterim Enhanced Surface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Sep 1, 2025 · 11 months ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Jul 1, 2025 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2025 · 1 year ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityResolvedSurface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Feb 1, 2025 · 1 year ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityResolvedInterim Enhanced Surface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Nov 1, 2024 · 1 year ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityResolvedSurface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Nov 1, 2024 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
City-wide
4 violationsPublic Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Dec 20, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Oct 17, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — TT violation
high severityHealth-basedResolvedLEAD AND COPPER RULE REVISIONS TT violation (Resolved).
EPA SDWIS · TT · Began Oct 17, 2024 · 1 year ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Oct 2, 2024 · 1 year ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.