Community Water System · PWS AZ0413419
Mountain View MHP
Operator location Scottsdale, Arizona - 38% of 146 violations are health-based (upper-third health share (> 23%)); groundwater source; 160 served per SDWIS.
- 160
- People served (this PWS)
- 146
- EPA violations (this PWS)
- 55
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Mountain View MHP standing, high SDWIS violation third
38% of 146 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 38% is upper-third health share (> 23%).
The verdict
Mountain View MHP sits in the upper third of the sitemap cohort by violation count (146), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (160; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 38% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 146
- Total EPA violations on record
- 38%
- Health-based (MCL / treatment failure)
- 160
- 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
- 84
- County
- Yavapai
- School/Daycare
- No
- MCL Violations
- 55
- Monitoring Violations
- 64
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 54 | 2015 |
| DICHLOROMETHANE | MR | 9 | 2000 |
| Consumer Confidence Rule | Other | 8 | 2024 |
| Chlorine | MR | 5 | 2014 |
| Arsenic | MR | 4 | 2017 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 1988 |
| Barium | MR | 2 | 1992 |
| Nitrate | MR | 2 | 2001 |
| Selenium | MR | 2 | 1992 |
| Mercury | MR | 2 | 1992 |
| Fluoride | MR | 2 | 1992 |
| Chromium | MR | 2 | 1992 |
| Cadmium | MR | 2 | 1992 |
| Endrin | MR | 1 | 1998 |
| BHC-GAMMA | MR | 1 | 1998 |
| Diquat | MR | 1 | 1998 |
| Di(2-ethylhexyl) adipate | MR | 1 | 1998 |
| OXAMYL | MR | 1 | 1998 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 1998 |
| Picloram | MR | 1 | 1998 |
| Hexachlorocyclopentadiene | MR | 1 | 1998 |
| Carbofuran | MR | 1 | 1998 |
| LASSO | MR | 1 | 1998 |
| Heptachlor | MR | 1 | 1998 |
| 2,4,5-TP | MR | 1 | 1998 |
| ETHYLENE DIBROMIDE | MR | 1 | 1998 |
| Chlordane | MR | 1 | 1998 |
| Dinoseb | MR | 1 | 1998 |
| Endothall | MR | 1 | 1998 |
| 2,4-D | MR | 1 | 1998 |
Violation Count vs. the National Corpus
Mountain View MHP has 146 recorded EPA violations, 81% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 19% carry more. 38% of this system's own violations are health-based (55 of 146), 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)
146 Higher than most more violations than 81% 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 Mountain View MHP
55 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for AZ0413419.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
146 violations · 160 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 Mountain View MHP
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.