Community Water System · PWS NM3520708
Happy Valley Cooperative Water Works
Operator location Carlsbad, New Mexico - smaller served population (≤ 999) at 638 people served; 98 SDWIS violations on record from groundwater sources.
- 638
- People served (this PWS)
- 98
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Happy Valley Cooperative Water Works standing, high SDWIS violation third
638 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%). Population rank #25,527 of 29,740 among systems serving 500+.
The verdict
Happy Valley Cooperative Water Works sits in the upper third of the sitemap cohort by violation count (98), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (638; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #25,527 of 29,740
- Population · /systems
- #189 of 215
- Population · NM
- 98
- Total EPA violations on record
- 2%
- 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
- Private
- Connections
- 240
- County
- Eddy
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 70
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 18 | 2025 |
| Coliform (TCR) | MR | 12 | 2013 |
| Chlorine | MR | 12 | 2021 |
| Revised Total Coliform Rule | MON | 8 | 2021 |
| Lead and Copper Rule | MR | 8 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2016 |
| TTHM | MR | 8 | 2016 |
| E. COLI | MR | 4 | 2015 |
| Public Notice | Other | 3 | 2020 |
| Asbestos | MR | 2 | 2002 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| Mercury | MR | 1 | 1983 |
| Selenium | MR | 1 | 1983 |
| Chromium | MR | 1 | 1983 |
| Barium | MR | 1 | 1983 |
| Cadmium | MR | 1 | 1983 |
| Nitrate | MR | 1 | 1983 |
| Fluoride | MR | 1 | 1983 |
| Arsenic | MR | 1 | 1983 |
Violation Count vs. the National Corpus
Happy Valley Cooperative Water Works has 98 recorded EPA violations, 73% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 27% carry more. 2% of this system's own violations are health-based (2 of 98), and it ranks #25,527 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)
98 Around the middle fewer violations than 27% 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 Happy Valley Cooperative Water Works
EPA SDWIS lists 638 people served and 240 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
98 violations · 638 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 Happy Valley Cooperative Water Works
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.