Arizona Water Company - Apache Junction
EPA ID: AZ0411004 · 62,055 people served · 90 ZIP codes
Arizona Water Company - Apache Junction's current EPA file includes 9 unresolved violations — every outstanding finding is documented in federal records for this utility, which supplies water to approximately 62,055 residents across its service territory.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 14 (2022) to 6 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Arizona Water Company - Apache Junction Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Arizona Water Company - Apache Junction serves a community with a median household income of $70,051 and an estimated 1,656,547 residents across its service area. Approximately 50% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Arizona Water Company - Apache Junction's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Maricopa County, Arizona rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Arizona Water Company - Apache Junction compares to EPA limits
What This Means For You
Contaminant 1009 at 3 mg/L exceeds the EPA maximum of 0.004 mg/L. Intestinal damage, bone damage. Consider reverse osmosis filtration.
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Chlorite at 10 mg/L exceeds the EPA maximum of 1 mg/L. Anemia and nervous system effects in infants and children. Consider ferrous sulfate reduction filtration.
Stage 2 DBP Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 4 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 101 detections recorded.
Contaminant 1009 was detected in this water system. reverse osmosis filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Arizona Water Company - Apache Junction (EPA ID: AZ0411004) is a community water system in Arizona that serves approximately 62,055 people from groundwater sources.
This system provides water to 90 ZIP codes across 6 communities.
Average Home Safety Score: C (69/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | Contaminant 1009 | Monitoring | Unresolved |
| July 25, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| July 1, 2025 | Contaminant 1009 | Monitoring | Unresolved |
| June 1, 2025 | Chlorite | Monitoring | Unresolved |
| May 1, 2025 | E. coli | Monitoring | Unresolved |
| May 1, 2025 | Chlorite | Monitoring | Unresolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| April 1, 2025 | Contaminant 1008 | Monitoring | Unresolved |
| December 20, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| November 14, 2024 | Contaminant 0700 | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| June 1, 2024 | Contaminant 1008 | Monitoring | Resolved |
| June 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2024 | Chlorite | Monitoring | Resolved |
| April 1, 2024 | Chlorite | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| October 2, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 10 | No |
| Stage 2 DBP Rule | Treatment Failure | 4 | Yes |
| Consumer Confidence Report Rule | Reporting Failure | 4 | No |
| Contaminant 1009 | Other Violation | 3 | No |
| Contaminant 0700 | Other Violation | 3 | Yes |
| Contaminant 1008 | Other Violation | 2 | No |
| Lead and Copper Rule | Treatment Failure | 2 | No |
| E. coli | Microbiological | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | Yes |
| Contaminant 2959 | Other Violation | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Fecal Coliform | Microbiological | 1 | No |
Health Risk Details
Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)
Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.
Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 85118 | 0.007 mg/L | No | N/A |
| 85117 | 0.0027 mg/L | No | N/A |
| 85119 | 0.0027 mg/L | No | N/A |
| 85120 | 0.0027 mg/L | No | N/A |
| 85178 | 0.0027 mg/L | No | N/A |
| 85218 | 0.0027 mg/L | No | N/A |
| 85220 | 0.0027 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 7 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 83 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 90 ZIP codes:
85001 · 85002 · 85003 · 85004 · 85005 85006 · 85007 · 85008 · 85009 · 85010 85011 · 85012 · 85013 · 85014 · 85015 85016 · 85017 · 85018 · 85019 · 85020 85021 · 85022 · 85023 · 85024 · 85025 85026 · 85027 · 85028 · 85029 · 85030 85031 · 85032 · 85033 · 85034 · 85035 85036 · 85037 · 85038 · 85039 · 85040 85041 · 85042 · 85043 · 85044 · 85045 85046 · 85048 · 85050 · 85051 · 85053 85054 · 85055 · 85060 · 85061 · 85062 85063 · 85064 · 85065 · 85066 · 85067 85068 · 85069 · 85070 · 85071 · 85072 85073 · 85074 · 85075 · 85076 · 85078 85079 · 85080 · 85082 · 85083 · 85085 85086 · 85097 · 85098 · 85117 · 85118 85119 · 85120 · 85173 · 85178 · 85190 85207 · 85208 · 85209 · 85218 · 85220
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Arizona Water Company - Apache Junction (AZ0411004) on EPA.gov.
Frequently Asked Questions
Is Arizona Water Company - Apache Junction water safe to drink?
Arizona Water Company - Apache Junction has recorded 6 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Arizona Water Company - Apache Junction serve?
Arizona Water Company - Apache Junction serves approximately 62,055 people across 90 ZIP codes in Arizona.
Where does Arizona Water Company - Apache Junction get its water?
The primary water source is groundwater.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from Arizona Water Company Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: Arizona Water Company Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
ADEQ completed a Source Water Assessment of the water sources used by Arizona Water Company's Apache Junction water system. ADEQ reviewed the adjacent land uses that may pose a potential risk to the water sources. The result of the Assessment was a low risk to the water sources.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment chemicals and what each one does
Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.
Treatment classification and chemical list sourced from Arizona Water Company Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
PFAS Substances Detected in This System
This water system's Consumer Confidence Report disclosed the following PFAS compounds. Levels are from the utility's most recent reporting cycle.
In April 2024, EPA finalized the first National Primary Drinking Water Regulation for six PFAS. Public water systems have until 2029 to comply. EPA — PFAS regulation overview →
Source: Consumer Confidence Report disclosed by Arizona Water Company.
ZipCheckup is not affiliated with this water utility. PFAS detection data is sourced from public Consumer Confidence Reports filed by the utility itself.
The Lead Service Line Inventory for this system has been prepared and can be viewed online via an interactive map at: https://lead-service-line-inventory-4-azwaterco.hub.arcgis.com/
Lead Service Line Replacement Tracker
This water utility's lead service line (LSL) replacement program is tracked from public Consumer Confidence Report filings. Email signup notifies subscribers when the utility files an updated replacement plan or progress milestone.
Arizona Water Company
ZipCheckup is not affiliated with this water utility. LSL replacement-program data is sourced from public CCR filings published by the utility. Subscription notifications are based on automated parsing of subsequent CCR releases.
Learn more about Lead and Copper Rule replacement requirements →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Arizona Water Company - Apache Junction (EPA ID: AZ0411004) — request the latest Consumer Confidence Report or ask about specific contaminants.