Community Water System · PWS NM3533223
Ponderosa Mdwca
Operator location Ponderosa, New Mexico - smaller served population (≤ 999) at 567 people served; 182 SDWIS violations on record from surface water sources.
- 567
- People served (this PWS)
- 182
- EPA violations (this PWS)
- 25
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Ponderosa Mdwca standing, high SDWIS violation third
567 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 14% is middle-third health share (≤ 23%). Population rank #27,108 of 29,740 among systems serving 500+.
The verdict
Ponderosa Mdwca sits in the upper third of the sitemap cohort by violation count (182), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (567; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 14% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #27,108 of 29,740
- Population · /systems
- #200 of 215
- Population · NM
- 182
- Total EPA violations on record
- 14%
- 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
- 204
- County
- Sandoval
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 103
- Treatment Tech Violations
- 25
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 24 | 2021 |
| Chlorine | MR | 22 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | TT | 18 | 2008 |
| Revised Total Coliform Rule | MON | 12 | 2022 |
| Coliform (TCR) | MR | 8 | 2010 |
| Public Notice | Other | 8 | 2023 |
| Surface Water Treatment Rule | TT | 7 | 2021 |
| Consumer Confidence Rule | Other | 5 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | MR | 4 | 2019 |
| Fluoride | MR | 1 | 2005 |
| CYANIDE | MR | 1 | 2005 |
| Cadmium | MR | 1 | 2005 |
| Chromium | MR | 1 | 2005 |
| Mercury | MR | 1 | 2005 |
| Nickel | MR | 1 | 2005 |
| Antimony, Total | MR | 1 | 2005 |
| Thallium, Total | MR | 1 | 2005 |
| Selenium | MR | 1 | 2005 |
| cis-1,2-Dichloroethylene | MR | 1 | 2006 |
| DICHLOROMETHANE | MR | 1 | 2006 |
| o-Dichlorobenzene | MR | 1 | 2006 |
| Vinyl chloride | MR | 1 | 2006 |
| trans-1,2-Dichloroethylene | MR | 1 | 2006 |
| 1,2-Dichloroethane | MR | 1 | 2006 |
| 1,1,1-Trichloroethane | MR | 1 | 2006 |
| Benzene | MR | 1 | 2006 |
| Toluene | MR | 1 | 2006 |
| Ethylbenzene | MR | 1 | 2006 |
| Styrene | MR | 1 | 2006 |
| p-Dichlorobenzene | MR | 1 | 2006 |
Violation Count vs. the National Corpus
Ponderosa Mdwca has 182 recorded EPA violations, 84% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 16% carry more. 14% of this system's own violations are health-based (25 of 182), and it ranks #27,108 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)
182 Higher than most more violations than 84% 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
Population served record for Ponderosa Mdwca
EPA SDWIS lists 567 people served and 204 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
182 violations · 567 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 smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Ponderosa Mdwca
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.