Community Water System · PWS AZ0411712
Antelope Peak Dwid
Operator location Maricopa, Arizona - 40% of 1,243 violations are health-based (upper-third health share (> 23%)); groundwater source; 150 served per SDWIS.
- 150
- People served (this PWS)
- 1,243
- EPA violations (this PWS)
- 494
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Antelope Peak Dwid standing, high SDWIS violation third
40% of 1,243 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 40% is upper-third health share (> 23%).
The verdict
Antelope Peak Dwid sits in the upper third of the sitemap cohort by violation count (1,243), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (150; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 40% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 1,243
- Total EPA violations on record
- 40%
- Health-based (MCL / treatment failure)
- 150
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Public/Private
- Connections
- 60
- County
- Pinal
- School/Daycare
- No
- MCL Violations
- 490
- Monitoring Violations
- 660
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MCL | 151 | 2022 |
| Fluoride | MCL | 132 | 2015 |
| Arsenic | MCL | 114 | 2015 |
| Nitrate | MCL | 83 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 68 | 2016 |
| Combined Uranium | MR | 64 | 2024 |
| Fluoride | MR | 58 | 2021 |
| Radium-226 | MR | 56 | 2016 |
| Combined Radium (-226 and -228) | MR | 56 | 2016 |
| Radium-228 | MR | 56 | 2016 |
| Nitrate | MR | 51 | 2021 |
| Arsenic | MR | 47 | 2021 |
| Coliform (TCR) | MR | 26 | 2014 |
| Consumer Confidence Rule | Other | 21 | 2022 |
| Chlorine | MR | 20 | 2022 |
| Revised Total Coliform Rule | RPT | 20 | 2023 |
| Public Notice | Other | 12 | 2024 |
| Revised Total Coliform Rule | MON | 11 | 2022 |
| Gross Alpha, Excl. Radon and U | MCL | 6 | 2011 |
| cis-1,2-Dichloroethylene | MR | 5 | 2011 |
| o-Dichlorobenzene | MR | 5 | 2011 |
| p-Dichlorobenzene | MR | 5 | 2011 |
| trans-1,2-Dichloroethylene | MR | 5 | 2011 |
| 1,2-Dichloroethane | MR | 5 | 2011 |
| Trichloroethylene | MR | 5 | 2011 |
| Tetrachloroethylene | MR | 5 | 2011 |
| CHLOROBENZENE | MR | 5 | 2011 |
| Toluene | MR | 5 | 2011 |
| Ethylbenzene | MR | 5 | 2011 |
| DICHLOROMETHANE | MR | 5 | 2011 |
Violation Count vs. the National Corpus
Antelope Peak Dwid has 1,243 recorded EPA violations, 99% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 1% carry more. 40% of this system's own violations are health-based (494 of 1,243), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
1,243 Higher than most more violations than 99% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Health-based violations on Antelope Peak Dwid
494 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for AZ0411712.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
1,243 violations · 150 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Antelope Peak Dwid
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Arizona compares on the same EPA violation measures. Arizona systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.