Non-Transient Non-Community Water System · PWS AZ0413320
Windy Valley Plaza
Operator location Chino Valley, Arizona - 36% of 156 violations are health-based (upper-third health share (> 23%)); groundwater source; 55 served per SDWIS.
- 55
- People served (this PWS)
- 156
- EPA violations (this PWS)
- 56
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Windy Valley Plaza standing, high SDWIS violation third
36% of 156 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 36% is upper-third health share (> 23%).
The verdict
Windy Valley Plaza sits in the upper third of the sitemap cohort by violation count (156), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (55; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 36% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 156
- Total EPA violations on record
- 36%
- Health-based (MCL / treatment failure)
- 55
- 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
- Non-Transient Non-Community
- Owner Type
- Public/Private
- Connections
- 3
- County
- Yavapai
- School/Daycare
- Yes
- MCL Violations
- 52
- Monitoring Violations
- 89
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 52 | 2011 |
| Arsenic | MR | 11 | 2015 |
| Nitrate | MR | 4 | 2002 |
| Lead and Copper Rule | MR | 4 | 2004 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| Diquat | MR | 2 | 2001 |
| Dinoseb | MR | 2 | 2001 |
| Carbofuran | MR | 2 | 2001 |
| Atrazine | MR | 2 | 2001 |
| LASSO | MR | 2 | 2001 |
| Heptachlor | MR | 2 | 2001 |
| Heptachlor epoxide | MR | 2 | 2001 |
| 2,4,5-TP | MR | 2 | 2001 |
| Benzo(a)pyrene | MR | 2 | 2001 |
| BHC-GAMMA | MR | 2 | 2001 |
| Toxaphene | MR | 2 | 2001 |
| Dalapon | MR | 2 | 2001 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2001 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2001 |
| 2,4-D | MR | 2 | 2001 |
| Coliform (TCR) | MR | 2 | 2011 |
| Chlordane | MR | 2 | 2001 |
| Pentachlorophenol | MR | 2 | 2001 |
| Public Notice | Other | 2 | 2024 |
| trans-1,2-Dichloroethylene | MR | 1 | 1998 |
| 1,2-Dichloroethane | MR | 1 | 1998 |
| 1,1,1-Trichloroethane | MR | 1 | 1998 |
| Carbon tetrachloride | MR | 1 | 1998 |
| 1,2-Dichloropropane | MR | 1 | 1998 |
Violation Count vs. the National Corpus
Windy Valley Plaza has 156 recorded EPA violations, 82% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 18% carry more. 36% of this system's own violations are health-based (56 of 156), 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)
156 Higher than most more violations than 82% 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 Windy Valley Plaza
56 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for AZ0413320.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
156 violations · 55 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 Windy Valley Plaza
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.