Transient Non-Community Water System · PWS AZ0403080
AZ State Parks Slide Rock
Operator location Phoenix, Arizona - 32% of 93 violations are health-based (upper-third health share (> 23%)); surface water source; 1,500 served per SDWIS.
- 1,500
- People served (this PWS)
- 93
- EPA violations (this PWS)
- 30
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
AZ State Parks Slide Rock standing, high SDWIS violation third
32% of 93 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 32% is upper-third health share (> 23%). Population rank #15,862 of 29,740 among systems serving 500+.
The verdict
AZ State Parks Slide Rock sits in the upper third of the sitemap cohort by violation count (93), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 1,500 (mid served population (≤ 3,309)). Health-based share is 32% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #15,862 of 29,740
- Population · /systems
- #224 of 413
- Population · AZ
- 93
- Total EPA violations on record
- 32%
- 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
- Transient Non-Community
- Owner Type
- State
- Connections
- 15
- County
- Coconino
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 58
- Treatment Tech Violations
- 30
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 30 | 2017 |
| Surface Water Treatment Rule | MR | 26 | 2025 |
| Coliform (TCR) | MR | 9 | 2010 |
| Interim Enhanced Surface Water Treatment Rule | MR | 9 | 2020 |
| Nitrate | MR | 8 | 2017 |
| Revised Total Coliform Rule | RPT | 4 | 2025 |
| Chlorine | MR | 4 | 2021 |
| E. COLI | MR | 2 | 2018 |
Violation Count vs. the National Corpus
AZ State Parks Slide Rock has 93 recorded EPA violations, 72% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 28% carry more. 32% of this system's own violations are health-based (30 of 93), and it ranks #15,862 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)
93 Around the middle fewer violations than 28% 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 AZ State Parks Slide Rock
30 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for AZ0403080.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
93 violations · 1,500 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 AZ State Parks Slide Rock
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.