Community Water System · PWS CO0151050
Avondale WSD
Operator location Pueblo, Colorado - 12% of 65 violations are health-based (middle-third health share (≤ 23%)); groundwater source; 1,615 served per SDWIS.
- 1,615
- People served (this PWS)
- 65
- EPA violations (this PWS)
- 8
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Avondale WSD standing, mid SDWIS violation third
12% of 65 recorded violations are health-based - middle-third health share (≤ 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 12% is middle-third health share (≤ 23%). Population rank #15,261 of 29,740 among systems serving 500+.
The verdict
Avondale WSD lands in the middle third by violation volume (65), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is mid-pack at 1,615 (mid served population (≤ 3,309)). Health-based share is 12% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #15,261 of 29,740
- Population · /systems
- #278 of 551
- Population · CO
- 65
- Total EPA violations on record
- 12%
- 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
- 484
- County
- Pueblo
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 53
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 6 | 2007 |
| Surface Water Treatment Rule | TT | 5 | 2018 |
| Revised Total Coliform Rule | Other | 4 | 2017 |
| Fluoride | MR | 3 | 2007 |
| Mercury | MR | 3 | 2007 |
| Beryllium, Total | MR | 3 | 2007 |
| Selenium | MR | 3 | 2007 |
| Coliform (TCR) | MCL | 3 | 2010 |
| TTHM | MR | 3 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2019 |
| Hexachlorocyclopentadiene | MR | 3 | 2017 |
| HEXACHLOROBENZENE | MR | 3 | 2017 |
| Chromium | MR | 3 | 2007 |
| Cadmium | MR | 3 | 2007 |
| Nickel | MR | 3 | 2007 |
| Antimony, Total | MR | 3 | 2007 |
| Barium | MR | 3 | 2007 |
| Arsenic | MR | 3 | 2007 |
| Thallium, Total | MR | 3 | 2007 |
| Coliform (TCR) | MR | 2 | 1993 |
Violation Count vs. the National Corpus
Avondale WSD has 65 recorded EPA violations, 63% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 36% carry more. 12% of this system's own violations are health-based (8 of 65), and it ranks #15,261 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)
65 Around the middle fewer violations than 36% 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 Avondale WSD
8 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for CO0151050.
Sources: EPA SDWIS · Colorado Department of Public Health and Environment, Water Quality Control
Nationwide peers
65 violations · 1,615 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.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Avondale WSD
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.