Community Water System · PWS CO0145150
Eureka WC
Operator location Rocky Ford, Colorado - 72% of 534 violations are health-based (upper-third health share (> 23%)); groundwater source; 498 served per SDWIS.
- 498
- People served (this PWS)
- 534
- EPA violations (this PWS)
- 383
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Eureka WC standing, high SDWIS violation third
72% of 534 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 72% is upper-third health share (> 23%).
The verdict
Eureka WC sits in the upper third of the sitemap cohort by violation count (534), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (498; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 72% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 534
- Total EPA violations on record
- 72%
- Health-based (MCL / treatment failure)
- 498
- 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
- Private
- Connections
- 147
- County
- Otero
- School/Daycare
- No
- MCL Violations
- 372
- Monitoring Violations
- 109
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Radium (-226 and -228) | MCL | 199 | 2025 |
| Gross Alpha, Excl. Radon and U | MCL | 173 | 2025 |
| Public Notice | Other | 31 | 2025 |
| Gross Alpha, Excl. Radon and U | MR | 21 | 2025 |
| Combined Uranium | MR | 17 | 2025 |
| Combined Radium (-226 and -228) | MR | 13 | 2025 |
| Lead and Copper Rule | MR | 8 | 2025 |
| Lead and Copper Rule | TT | 6 | 2025 |
| Consumer Confidence Rule | Other | 5 | 2024 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 5 | 2024 |
| Barium | MR | 4 | 2011 |
| Chromium | MR | 4 | 2011 |
| Nickel | MR | 4 | 2011 |
| Antimony, Total | MR | 4 | 2011 |
| Beryllium, Total | MR | 4 | 2011 |
| Selenium | MR | 4 | 2011 |
| Mercury | MR | 4 | 2011 |
| Thallium, Total | MR | 4 | 2011 |
| Cadmium | MR | 4 | 2011 |
| Arsenic | MR | 4 | 2011 |
| Nitrate | MR | 3 | 2024 |
| Benzene | MR | 1 | 1991 |
| 1,2-Dichloroethane | MR | 1 | 1991 |
| 1,1,1-Trichloroethane | MR | 1 | 1991 |
| Trichloroethylene | MR | 1 | 1991 |
| p-Dichlorobenzene | MR | 1 | 1991 |
| 1,1-Dichloroethylene | MR | 1 | 1991 |
| Carbon tetrachloride | MR | 1 | 1991 |
Violation Count vs. the National Corpus
Eureka WC has 534 recorded EPA violations, 96% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 4% carry more. 72% of this system's own violations are health-based (383 of 534), 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)
534 Higher than most more violations than 96% 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 Eureka WC
383 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for CO0145150.
Sources: EPA SDWIS · Colorado Department of Public Health and Environment, Water Quality Control
Nationwide peers
534 violations · 498 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 Eureka WC
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Colorado compares on the same EPA violation measures. Colorado 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.