Non-Transient Non-Community Water System · PWS 090400233
Desert Diamond Sahuarita
Operator location Tucson, EPA Region 9 — Tribal Water Systems - 0% of 89 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 2,412 served per SDWIS.
- 2,412
- People served (this PWS)
- 89
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Desert Diamond Sahuarita standing, high SDWIS violation third
0% of 89 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). Population rank #12,199 of 29,740 among systems serving 500+.
The verdict
Desert Diamond Sahuarita sits in the upper third of the sitemap cohort by violation count (89), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,412 (mid served population (≤ 3,309)). Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.
- #12,199 of 29,740
- Population · /systems
- #57 of 129
- Population · 09
- 89
- Total EPA violations on record
- 0%
- 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
- Non-Transient Non-Community
- Owner Type
- Native American
- Connections
- 1
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 75
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 3 | 2014 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2006 |
| TTHM | MR | 3 | 2006 |
| Nitrate | MR | 3 | 2006 |
| Arsenic | MR | 1 | 2004 |
| Fluoride | MR | 1 | 2004 |
| Selenium | MR | 1 | 2004 |
| Antimony, Total | MR | 1 | 2004 |
| Beryllium, Total | MR | 1 | 2004 |
| Endrin | MR | 1 | 2004 |
| Glyphosate | MR | 1 | 2004 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2004 |
| Atrazine | MR | 1 | 2004 |
| 2,3,7,8-TCDD | MR | 1 | 2004 |
| 2,4-D | MR | 1 | 2004 |
| 2,4,5-TP | MR | 1 | 2004 |
| HEXACHLOROBENZENE | MR | 1 | 2004 |
| Benzo(a)pyrene | MR | 1 | 2004 |
| Pentachlorophenol | MR | 1 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2004 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2004 |
| 1,1-Dichloroethylene | MR | 1 | 2004 |
| 1,2-Dichloroethane | MR | 1 | 2004 |
| 1,1,1-Trichloroethane | MR | 1 | 2004 |
| 1,2-Dichloropropane | MR | 1 | 2004 |
| Tetrachloroethylene | MR | 1 | 2004 |
| Benzene | MR | 1 | 2004 |
| Toluene | MR | 1 | 2004 |
| Ethylbenzene | MR | 1 | 2004 |
| Styrene | MR | 1 | 2004 |
Violation Count vs. the National Corpus
Desert Diamond Sahuarita has 89 recorded EPA violations, 71% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 29% carry more. 0% of this system's own violations are health-based (0 of 89), and it ranks #12,199 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)
89 Around the middle fewer violations than 29% 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 Desert Diamond Sahuarita
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for 090400233.
Sources: EPA SDWIS
Nationwide peers
89 violations · 2,412 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 Desert Diamond Sahuarita
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in EPA Region 9 — Tribal Water Systems compares on the same EPA violation measures. EPA Region 9 — Tribal Water Systems 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.