Community Water System · PWS NM3506329
Llano Quemado Mdwca
Operator location Ranchos de Taos, New Mexico - 58% of 332 violations are health-based (upper-third health share (> 23%)); groundwater source; 800 served per SDWIS.
- 800
- People served (this PWS)
- 332
- EPA violations (this PWS)
- 191
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Llano Quemado Mdwca standing, high SDWIS violation third
58% of 332 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 58% is upper-third health share (> 23%). Population rank #22,586 of 29,740 among systems serving 500+.
The verdict
Llano Quemado Mdwca sits in the upper third of the sitemap cohort by violation count (332), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (800; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 58% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #22,586 of 29,740
- Population · /systems
- #169 of 215
- Population · NM
- 332
- Total EPA violations on record
- 58%
- 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
- 240
- County
- Taos
- School/Daycare
- No
- MCL Violations
- 143
- Monitoring Violations
- 97
- Treatment Tech Violations
- 48
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Fluoride | MCL | 143 | 2016 |
| Groundwater Rule | TT | 48 | 2014 |
| Fluoride | MR | 30 | 2006 |
| Revised Total Coliform Rule | MON | 27 | 2020 |
| Consumer Confidence Rule | Other | 15 | 2019 |
| Coliform (TCR) | MR | 12 | 2010 |
| Public Notice | Other | 8 | 2021 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2014 |
| TTHM | MR | 8 | 2014 |
| Chlorine | MR | 8 | 2018 |
| Revised Total Coliform Rule | Other | 4 | 2016 |
| Lead and Copper Rule | MR | 4 | 2015 |
| Groundwater Rule | Other | 2 | 2020 |
Violation Count vs. the National Corpus
Llano Quemado Mdwca has 332 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 58% of this system's own violations are health-based (191 of 332), and it ranks #22,586 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)
332 Higher than most more violations than 92% 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 Llano Quemado Mdwca
191 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for NM3506329.
Sources: EPA SDWIS
Nationwide peers
332 violations · 800 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 Llano Quemado 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.