Pima, 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
Graham County Utilities - Pima
- PWSID:
- AZ0405002
- Source:
- Ground water
- Serves:
- 3,799 people
Graham County Utilities-Fort Thomas
- PWSID:
- AZ0405001
- Source:
- Ground water
- Serves:
- 452 people
Ash Creek Water Company
- PWSID:
- AZ0405007
- Source:
- Ground water
- Serves:
- 310 people
EPA & DEP violations
Graham County Utilities - Pima
PWSID AZ040500211 violationsConsumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Oct 2, 2025 · 10 months ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Feb 23, 2025 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Apr 2, 2023 · 3 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jul 1, 2022 · 4 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jul 1, 2022 · 4 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jun 1, 2022 · 4 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Mar 17, 2022 · 4 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Feb 13, 2022 · 4 years ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2022 · 4 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Nov 25, 2021 · 4 years ago · Source ↗
Graham County Utilities-Fort Thomas
PWSID AZ04050015 violationsLead and Copper Rule — TT violation
high severityHealth-basedUnaddressedLead and Copper Rule TT violation (Unaddressed).
EPA SDWIS · TT · Began Dec 1, 2025 · 8 months ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Oct 2, 2025 · 10 months ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Oct 2, 2023 · 2 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
City-wide
4 violationsConsumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Oct 2, 2025 · 10 months ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Oct 2, 2023 · 2 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.