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Community Water System · PWS AZ0410213

Gw Farmers Water Co - Santa Rita Springs

Maricopa, Arizona 85138 - drinking water served from groundwater sources to 3,990 people, tracked in EPA SDWIS and UCMR5.

3,990
People served
106
EPA violations
2
Health-based
3 PFAS
UCMR5 result

The verdict

EPA records 106 drinking-water violations at Gw Farmers Water Co - Santa Rita Springs, 2% of them health-based - below the Arizona per-system average, and UCMR5 testing detected 3 PFAS compounds.

106
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
3,990
People served by this system
3
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Gw Farmers Water Co - Santa Rita Springs

Gw Farmers Water Co - Santa Rita Springs is a public/private-owned community water system that delivers drinking water to 3,990 residents in Maricopa, Arizona (Pima County) through 1,330 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 106 total violations for this system , of which 2 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 86 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 14 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 3 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 5.8 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%).

Gw Farmers Water Co - Santa Rita Springs's 106 violations sit below the Arizona average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

3 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
3,990
Total Violations
106
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
1,330
County
Pima
School/Daycare
No
MCL Violations
2
Monitoring Violations
86
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 14 2013
Chlorine MR 11 2017
Consumer Confidence Rule Other 10 2014
Nitrate MR 8 2006
Revised Total Coliform Rule RPT 6 2020
p-Dichlorobenzene MR 2 2001
trans-1,2-Dichloroethylene MR 2 2001
Carbon tetrachloride MR 2 2001
Trichloroethylene MR 2 2001
1,1,2-Trichloroethane MR 2 2001
Tetrachloroethylene MR 2 2001
CHLOROBENZENE MR 2 2001
Benzene MR 2 2001
Toluene MR 2 2001
1,2,4-Trichlorobenzene MR 2 2001
Xylenes, Total MR 2 2001
DICHLOROMETHANE MR 2 2001
o-Dichlorobenzene MR 2 2001
1,1-Dichloroethylene MR 2 2001
1,2-Dichloropropane MR 2 2001
Ethylbenzene MR 2 2001
Styrene MR 2 2001
Total Haloacetic Acids (HAA5) MR 2 2004
1,2-Dichloroethane MR 2 2001
TTHM MR 2 2004
E. COLI MR 2 2015
Coliform (TCR) MCL 2 2015
1,1,1-Trichloroethane MR 2 2001
cis-1,2-Dichloroethylene MR 2 2001
Arsenic MR 1 1984

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 58 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/24/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/24/2024 <20.00 ppt 20.00 ppt Not Detected
PFDoA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 9/24/2024 4.80 ppt 4.00 ppt Detected
PFHpA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/24/2024 4.00 ppt 3.00 ppt Detected
PFNA 9/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFBA 9/24/2024 <5.00 ppt 5.00 ppt Not Detected
PFDA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/24/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/24/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 9/24/2024 <2.00 ppt 2.00 ppt Not Detected
HFPO-DA 9/24/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 9/24/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/24/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 9/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFBS 9/24/2024 5.80 ppt 3.00 ppt Detected
PFTA 8/5/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/5/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/5/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/5/2024 <6.00 ppt 6.00 ppt Not Detected
PFNA 2/5/2024 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 2/5/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 2/5/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 2/5/2024 <5.00 ppt 5.00 ppt Not Detected
ADONA 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 2/5/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 2/5/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 2/5/2024 <2.00 ppt 2.00 ppt Not Detected
PFDoA 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 2/5/2024 <4.00 ppt 4.00 ppt Not Detected
4:2 FTS 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 2/5/2024 5.00 ppt 4.00 ppt Detected
NEtFOSAA 2/5/2024 <5.00 ppt 5.00 ppt Not Detected
PFHxA 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 2/5/2024 <20.00 ppt 20.00 ppt Not Detected
PFHpA 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 2/5/2024 3.50 ppt 3.00 ppt Detected
PFBS 2/5/2024 4.80 ppt 3.00 ppt Detected
PFMBA 2/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 2/5/2024 <4.00 ppt 4.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Gw Farmers Water Co - Santa Rita Springs.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AZ0410213 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ, Drinking Water Program is the primacy agency that licenses and inspects Gw Farmers Water Co - Santa Rita Springs under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ, Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2020 Revised Total Coliform Rule RPT 6 SDWIS / AZ0410213 / 8000
2017 Chlorine MR 11 SDWIS / AZ0410213 / 0999
2015 E. COLI MR 2 SDWIS / AZ0410213 / 3014
2015 Coliform (TCR) MCL 2 SDWIS / AZ0410213 / 3100
2014 Consumer Confidence Rule Other 10 SDWIS / AZ0410213 / 7000
2013 Coliform (TCR) MR 14 SDWIS / AZ0410213 / 3100
2006 Nitrate MR 8 SDWIS / AZ0410213 / 1040
2004 Total Haloacetic Acids (HAA5) MR 2 SDWIS / AZ0410213 / 2456
2004 TTHM MR 2 SDWIS / AZ0410213 / 2950
2001 p-Dichlorobenzene MR 2 SDWIS / AZ0410213 / 2969
2001 trans-1,2-Dichloroethylene MR 2 SDWIS / AZ0410213 / 2979
2001 Carbon tetrachloride MR 2 SDWIS / AZ0410213 / 2982
2001 Trichloroethylene MR 2 SDWIS / AZ0410213 / 2984
2001 1,1,2-Trichloroethane MR 2 SDWIS / AZ0410213 / 2985
2001 Tetrachloroethylene MR 2 SDWIS / AZ0410213 / 2987

How Gw Farmers Water Co - Santa Rita Springs Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Gw Farmers Water Co - Santa Rita Springs Arizona avg Federal benchmark
Total violations 106 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 3 compounds 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,990 4,904 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Gw Farmers Water Co - Santa Rita Springs water safe to drink?
Gw Farmers Water Co - Santa Rita Springs (PWS ID: AZ0410213) has 106 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 3 PFAS compounds found. This system serves 3,990 people using Groundwater sources.
How many people does Gw Farmers Water Co - Santa Rita Springs serve?
Gw Farmers Water Co - Santa Rita Springs serves 3,990 people in Maricopa, Arizona. It is a Public/Private-owned system using Groundwater water sources with 1,330 service connections.
What type of violations does Gw Farmers Water Co - Santa Rita Springs have?
Gw Farmers Water Co - Santa Rita Springs has 106 total violations: 2 health-based violations (MCL exceedances or treatment failures), 86 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Gw Farmers Water Co - Santa Rita Springs water?
Yes. UCMR5 testing detected 3 PFAS compounds in Gw Farmers Water Co - Santa Rita Springs's water supply: PFOS, PFHxS, PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Gw Farmers Water Co - Santa Rita Springs use?
Gw Farmers Water Co - Santa Rita Springs uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.