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Community Water System · PWS AZ0413046

Arizona Water Co - Rimrock

Phoenix, Arizona 85015-5351 - drinking water served from groundwater sources to 3,423 people, tracked in EPA SDWIS and UCMR5.

3,423
People served
205
EPA violations
12
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 205 drinking-water violations at Arizona Water Co - Rimrock, 6% of them health-based - above the Arizona per-system average.

205
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
3,423
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Arizona Water Co - Rimrock

Arizona Water Co - Rimrock is a private-owned community water system that delivers drinking water to 3,423 residents in Phoenix, Arizona (Yavapai County) through 1,396 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 205 total violations for this system , of which 12 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 192 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Arsenic, recorded in 17 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Arizona Water Co - Rimrock's 205 violations sit above 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.

Population Served
3,423
Total Violations
205
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
1,396
County
Yavapai
School/Daycare
No
MCL Violations
8
Monitoring Violations
192
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MR 17 2010
Nitrate MR 10 2015
Arsenic MCL 7 2004
CYANIDE MR 6 2015
Fluoride MR 6 2015
Mercury MR 6 2015
Asbestos MR 6 2009
cis-1,2-Dichloroethylene MR 4 2007
Xylenes, Total MR 4 2007
trans-1,2-Dichloroethylene MR 4 2007
1,2-Dichloroethane MR 4 2007
1,1,1-Trichloroethane MR 4 2007
Carbon tetrachloride MR 4 2007
Trichloroethylene MR 4 2007
1,1,2-Trichloroethane MR 4 2007
Tetrachloroethylene MR 4 2007
Benzene MR 4 2007
Ethylbenzene MR 4 2007
1,1-Dichloroethylene MR 4 2007
Toluene MR 4 2007
1,2,4-Trichlorobenzene MR 4 2007
DICHLOROMETHANE MR 4 2007
o-Dichlorobenzene MR 4 2007
p-Dichlorobenzene MR 4 2007
1,2-Dichloropropane MR 4 2007
LEAD AND COPPER RULE REVISIONS TT 4 2024
Styrene MR 4 2007
Nitrite MR 4 2009
CHLOROBENZENE MR 4 2007
Vinyl chloride MR 3 2007

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 290 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/8/2023 <2.00 ppt 2.00 ppt Not Detected
9Cl-PF3ONS 8/8/2023 <2.00 ppt 2.00 ppt Not Detected
NMeFOSAA 8/8/2023 <6.00 ppt 6.00 ppt Not Detected
HFPO-DA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/8/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 8/8/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 8/8/2023 <8.00 ppt 8.00 ppt Not Detected
ADONA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/8/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/8/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 8/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 8/8/2023 <3.00 ppt 3.00 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 Arizona Water Co - Rimrock.

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 AZ0413046 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 Arizona Water Co - Rimrock 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
2024 LEAD AND COPPER RULE REVISIONS TT 4 SDWIS / AZ0413046 / 5200
2015 Nitrate MR 10 SDWIS / AZ0413046 / 1040
2015 CYANIDE MR 6 SDWIS / AZ0413046 / 1024
2015 Fluoride MR 6 SDWIS / AZ0413046 / 1025
2015 Mercury MR 6 SDWIS / AZ0413046 / 1035
2015 Methoxychlor MR 2 SDWIS / AZ0413046 / 2015
2015 Toxaphene MR 2 SDWIS / AZ0413046 / 2020
2015 Dalapon MR 2 SDWIS / AZ0413046 / 2031
2015 Simazine MR 2 SDWIS / AZ0413046 / 2037
2015 Glyphosate MR 2 SDWIS / AZ0413046 / 2034
2015 Di(2-ethylhexyl) adipate MR 2 SDWIS / AZ0413046 / 2035
2015 Heptachlor epoxide MR 2 SDWIS / AZ0413046 / 2067
2015 HEXACHLOROBENZENE MR 2 SDWIS / AZ0413046 / 2274
2015 Benzo(a)pyrene MR 2 SDWIS / AZ0413046 / 2306
2015 Pentachlorophenol MR 2 SDWIS / AZ0413046 / 2326

How Arizona Water Co - Rimrock Compares

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

Metric Arizona Water Co - Rimrock Arizona avg Federal benchmark
Total violations 205 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,423 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 Arizona Water Co - Rimrock water safe to drink? ▼
Arizona Water Co - Rimrock (PWS ID: AZ0413046) has 205 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,423 people using Groundwater sources.
How many people does Arizona Water Co - Rimrock serve? ▼
Arizona Water Co - Rimrock serves 3,423 people in Phoenix, Arizona. It is a Private-owned system using Groundwater water sources with 1,396 service connections.
What type of violations does Arizona Water Co - Rimrock have? ▼
Arizona Water Co - Rimrock has 205 total violations: 12 health-based violations (MCL exceedances or treatment failures), 192 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Arizona Water Co - Rimrock water? ▼
No. Arizona Water Co - Rimrock was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Arizona Water Co - Rimrock use? ▼
Arizona Water Co - Rimrock 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.

Read our methodology - how this data is sourced, computed, and verified.

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.