Community Water System · PWS AZ0402012
Pomerene Dwid
Operator location Pomerene, Arizona - upper-third violation load (> 74 violations) with 337 EPA violations; groundwater source; 1,030 served (PWS-level, not municipal population).
- 1,030
- People served (this PWS)
- 337
- EPA violations (this PWS)
- 42
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Pomerene Dwid standing, high SDWIS violation third
337 EPA SDWIS violations on record - upper-third violation load (> 74 violations). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 12% is middle-third health share (≤ 23%). Population rank #19,149 of 29,740 among systems serving 500+.
The verdict
Pomerene Dwid sits in the upper third of the sitemap cohort by violation count (337), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,030 (mid served population (≤ 3,309)). Health-based share is 12% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #19,149 of 29,740
- Population · /systems
- #266 of 413
- Population · AZ
- 337
- Total EPA violations on record
- 12%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 425
- County
- Cochise
- School/Daycare
- No
- MCL Violations
- 31
- Monitoring Violations
- 230
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 124 | 2024 |
| Consumer Confidence Rule | Other | 35 | 2024 |
| Arsenic | MCL | 25 | 2025 |
| Coliform (TCR) | MR | 14 | 2015 |
| Chlorine | MR | 11 | 2008 |
| Nitrate | MR | 10 | 2009 |
| Lead and Copper Rule | MR | 7 | 2020 |
| Public Notice | Other | 7 | 2025 |
| Revised Total Coliform Rule | TT | 7 | 2021 |
| Revised Total Coliform Rule | MON | 6 | 2023 |
| E. COLI | MR | 5 | 2019 |
| Revised Total Coliform Rule | RPT | 4 | 2019 |
| Fluoride | MR | 4 | 2025 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| Coliform (TCR) | MCL | 4 | 2014 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2008 |
| TTHM | MR | 3 | 2008 |
| trans-1,2-Dichloroethylene | MR | 2 | 2001 |
| 1,2-Dichloroethane | MR | 2 | 2001 |
| 1,1,1-Trichloroethane | MR | 2 | 2001 |
| Carbon tetrachloride | MR | 2 | 2001 |
| 1,2-Dichloropropane | MR | 2 | 2001 |
| 1,1,2-Trichloroethane | MR | 2 | 2001 |
| Benzene | MR | 2 | 2001 |
| Ethylbenzene | MR | 2 | 2001 |
| cis-1,2-Dichloroethylene | MR | 2 | 2001 |
| Fluoride | MCL | 2 | 2025 |
| DICHLOROMETHANE | MR | 2 | 2001 |
| o-Dichlorobenzene | MR | 2 | 2001 |
Violation Count vs. the National Corpus
Pomerene Dwid has 337 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 12% of this system's own violations are health-based (42 of 337), and it ranks #19,149 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
337 Higher than most more violations than 92% 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
SDWIS compliance record for Pomerene Dwid
337 violations on record for AZ0402012; use EPA SDWIS to confirm return-to-compliance dates and monitoring categories.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
337 violations · 1,030 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.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Pomerene 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.