Community Water System · PWS NM3509623
Rio Rancho Water & Ww Services
Operator location Rio Rancho, New Mexico - larger served population (> 3,309) at 107,350 people served; 457 SDWIS violations on record from surface water sources.
- 107,350
- People served (this PWS)
- 457
- EPA violations (this PWS)
- 15
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Rio Rancho Water & Ww Services standing, high SDWIS violation third
107,350 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 3% is middle-third health share (≤ 23%). UCMR5: UCMR5 tested, none detected. Population rank #442 of 29,740 among systems serving 500+.
The verdict
Rio Rancho Water & Ww Services sits in the upper third of the sitemap cohort by violation count (457), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (107,350; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 3% (middle-third health share (≤ 23%)). UCMR5 tested this system and reported no PFAS above the minimum reporting level.
- #442 of 29,740
- Population · /systems
- #2 of 215
- Population · NM
- 457
- Total EPA violations on record
- 3%
- 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
- Community
- Owner Type
- Local
- Connections
- 37,760
- County
- Sandoval
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 429
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 164 | 2016 |
| Chlorine | MR | 74 | 2017 |
| Revised Total Coliform Rule | MON | 60 | 2017 |
| TTHM | MR | 12 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2018 |
| Coliform (TCR) | MCL | 11 | 1997 |
| E. COLI | MR | 4 | 2014 |
| Arsenic | MCL | 4 | 2002 |
| HEXACHLOROBENZENE | MR | 3 | 2009 |
| Heptachlor epoxide | MR | 3 | 2009 |
| Heptachlor | MR | 3 | 2009 |
| LASSO | MR | 3 | 2009 |
| Hexachlorocyclopentadiene | MR | 3 | 2009 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2009 |
| Simazine | MR | 3 | 2009 |
| cis-1,2-Dichloroethylene | MR | 3 | 2009 |
| Xylenes, Total | MR | 3 | 2009 |
| DICHLOROMETHANE | MR | 3 | 2009 |
| o-Dichlorobenzene | MR | 3 | 2009 |
| p-Dichlorobenzene | MR | 3 | 2009 |
| Vinyl chloride | MR | 3 | 2009 |
| 1,1-Dichloroethylene | MR | 3 | 2009 |
| trans-1,2-Dichloroethylene | MR | 3 | 2009 |
| Carbon tetrachloride | MR | 3 | 2009 |
| Trichloroethylene | MR | 3 | 2009 |
| Tetrachloroethylene | MR | 3 | 2009 |
| CHLOROBENZENE | MR | 3 | 2009 |
| Toluene | MR | 3 | 2009 |
| Ethylbenzene | MR | 3 | 2009 |
| Consumer Confidence Rule | Other | 3 | 2016 |
Violation Count vs. the National Corpus
Rio Rancho Water & Ww Services has 457 recorded EPA violations, 95% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 5% carry more. 3% of this system's own violations are health-based (15 of 457), and it ranks #442 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)
457 Higher than most more violations than 95% 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
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 406 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFDA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 9/16/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFMBA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 9/16/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeS | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDoA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 9/16/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 9/16/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 4:2 FTS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 6:2 FTS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| ADONA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 9/16/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 9/16/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
Population served record for Rio Rancho Water & Ww Services
EPA SDWIS lists 107,350 people served and 37,760 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
457 violations · 107,350 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 with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Rio Rancho Water & Ww Services
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in New Mexico compares on the same EPA violation measures. New Mexico 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.