Community Water System · PWS NM3507729
Tres Piedras Mdwca
Operator location Tres Piedras, New Mexico - smaller served population (≤ 999) at 350 people served; 72 SDWIS violations on record from groundwater sources.
- 350
- People served (this PWS)
- 72
- EPA violations (this PWS)
- 10
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Tres Piedras Mdwca standing, mid SDWIS violation third
350 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%).
The verdict
Tres Piedras Mdwca lands in the middle third by violation volume (72), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (350; 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.
- 72
- Total EPA violations on record
- 14%
- Health-based (MCL / treatment failure)
- 350
- 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
- 84
- County
- Taos
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 40
- Treatment Tech Violations
- 10
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 12 | 2019 |
| Groundwater Rule | TT | 8 | 2015 |
| Revised Total Coliform Rule | Other | 4 | 2016 |
| Mercury | MR | 2 | 2005 |
| Beryllium, Total | MR | 2 | 2005 |
| Selenium | MR | 2 | 2005 |
| Nickel | MR | 2 | 2005 |
| Antimony, Total | MR | 2 | 2005 |
| Thallium, Total | MR | 2 | 2005 |
| Consumer Confidence Rule | Other | 2 | 2015 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| Barium | MR | 2 | 2005 |
| Arsenic | MR | 2 | 2005 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| Cadmium | MR | 2 | 2005 |
| Chromium | MR | 2 | 2005 |
| Public Notice | Other | 2 | 2015 |
| LASSO | MR | 1 | 2005 |
| Atrazine | MR | 1 | 2005 |
| Hexachlorocyclopentadiene | MR | 1 | 2005 |
| Simazine | MR | 1 | 2005 |
| HEXACHLOROBENZENE | MR | 1 | 2005 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2005 |
| Benzo(a)pyrene | MR | 1 | 2005 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2005 |
Violation Count vs. the National Corpus
Tres Piedras Mdwca has 72 recorded EPA violations, 66% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 34% carry more. 14% of this system's own violations are health-based (10 of 72), 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)
72 Around the middle fewer violations than 34% 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 Tres Piedras Mdwca
EPA SDWIS lists 350 people served and 84 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
72 violations · 350 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Tres Piedras 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.