Community Water System · PWS NM3506621
Ojo Caliente Mdwca
Operator location Ojo Caliente, New Mexico - 76% of 439 violations are health-based (upper-third health share (> 23%)); groundwater source; 226 served per SDWIS.
- 226
- People served (this PWS)
- 439
- EPA violations (this PWS)
- 332
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Ojo Caliente Mdwca standing, high SDWIS violation third
76% of 439 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 76% is upper-third health share (> 23%).
The verdict
Ojo Caliente Mdwca sits in the upper third of the sitemap cohort by violation count (439), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (226; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 76% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 439
- Total EPA violations on record
- 76%
- Health-based (MCL / treatment failure)
- 226
- 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
- Local
- Connections
- 103
- County
- Taos
- School/Daycare
- No
- MCL Violations
- 314
- Monitoring Violations
- 32
- Treatment Tech Violations
- 18
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MCL | 305 | 2023 |
| Public Notice | Other | 42 | 2019 |
| Consumer Confidence Rule | Other | 20 | 2023 |
| Groundwater Rule | TT | 16 | 2019 |
| Revised Total Coliform Rule | MON | 9 | 2016 |
| Gross Alpha, Excl. Radon and U | MCL | 9 | 2009 |
| Lead and Copper Rule | MR | 9 | 2018 |
| Combined Uranium | MR | 7 | 2010 |
| Nitrate-Nitrite | MR | 6 | 2009 |
| Groundwater Rule | Other | 5 | 2019 |
| Revised Total Coliform Rule | Other | 4 | 2016 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| Combined Radium (-226 and -228) | MR | 1 | 2009 |
Violation Count vs. the National Corpus
Ojo Caliente Mdwca has 439 recorded EPA violations, 94% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 6% carry more. 76% of this system's own violations are health-based (332 of 439), 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)
439 Higher than most more violations than 94% 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 Ojo Caliente Mdwca
332 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NM3506621.
Sources: EPA SDWIS
Nationwide peers
439 violations · 226 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 Ojo Caliente 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.