Community Water System · PWS AZ0411409
Valle Escondido
Operator location Maricopa, Arizona - 24% of 105 violations are health-based (upper-third health share (> 23%)); groundwater source; 405 served per SDWIS.
- 405
- People served (this PWS)
- 105
- EPA violations (this PWS)
- 25
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Valle Escondido standing, high SDWIS violation third
24% of 105 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 24% is upper-third health share (> 23%).
The verdict
Valle Escondido sits in the upper third of the sitemap cohort by violation count (105), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (405; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 24% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 105
- Total EPA violations on record
- 24%
- Health-based (MCL / treatment failure)
- 405
- 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
- 102
- County
- Pinal
- School/Daycare
- No
- MCL Violations
- 17
- Monitoring Violations
- 52
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 21 | 2022 |
| Lead and Copper Rule | MR | 13 | 2023 |
| Arsenic | MCL | 12 | 2024 |
| Arsenic | MR | 8 | 2017 |
| Public Notice | Other | 8 | 2024 |
| Revised Total Coliform Rule | RPT | 6 | 2022 |
| Revised Total Coliform Rule | MCL | 5 | 2022 |
| Consumer Confidence Rule | Other | 4 | 2021 |
| TTHM | MR | 4 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2023 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| Groundwater Rule | TT | 4 | 2024 |
| E. COLI | MR | 2 | 2022 |
Violation Count vs. the National Corpus
Valle Escondido has 105 recorded EPA violations, 74% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 26% carry more. 24% of this system's own violations are health-based (25 of 105), 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)
105 Around the middle fewer violations than 26% 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 Valle Escondido
25 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for AZ0411409.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
105 violations · 405 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 Valle Escondido
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.