Community Water System · PWS CO0115784
Upper Surface Creek Domestic Wua
Operator location Cedaredge, Colorado - 25% of 279 violations are health-based (upper-third health share (> 23%)); surface water source; 2,800 served per SDWIS.
- 2,800
- People served (this PWS)
- 279
- EPA violations (this PWS)
- 71
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Upper Surface Creek Domestic Wua standing, high SDWIS violation third
25% of 279 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 25% is upper-third health share (> 23%). Population rank #11,106 of 29,740 among systems serving 500+.
The verdict
Upper Surface Creek Domestic Wua sits in the upper third of the sitemap cohort by violation count (279), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,800 (mid served population (≤ 3,309)). Health-based share is 25% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #11,106 of 29,740
- Population · /systems
- #205 of 551
- Population · CO
- 279
- Total EPA violations on record
- 25%
- 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
- 971
- County
- Delta
- School/Daycare
- No
- MCL Violations
- 65
- Monitoring Violations
- 204
- Treatment Tech Violations
- 6
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 65 | 2023 |
| Surface Water Treatment Rule | MR | 27 | 2021 |
| Revised Total Coliform Rule | MON | 24 | 2020 |
| Lead and Copper Rule | MR | 18 | 2023 |
| Chlorite | MR | 6 | 2020 |
| Long Term 2 Enhanced Surface Water Treatment Rule | MR | 6 | 2017 |
| Lead and Copper Rule | TT | 6 | 2024 |
| Chlorine | MR | 6 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2017 |
| Xylenes, Total | MR | 3 | 2008 |
| o-Dichlorobenzene | MR | 3 | 2008 |
| 1,1-Dichloroethylene | MR | 3 | 2008 |
| trans-1,2-Dichloroethylene | MR | 3 | 2008 |
| 1,1,1-Trichloroethane | MR | 3 | 2008 |
| 1,2-Dichloropropane | MR | 3 | 2008 |
| Tetrachloroethylene | MR | 3 | 2008 |
| CHLOROBENZENE | MR | 3 | 2008 |
| Benzene | MR | 3 | 2008 |
| Ethylbenzene | MR | 3 | 2008 |
| Cadmium | MR | 3 | 2008 |
| Chromium | MR | 3 | 2008 |
| Mercury | MR | 3 | 2008 |
| Nickel | MR | 3 | 2008 |
| Antimony, Total | MR | 3 | 2008 |
| Beryllium, Total | MR | 3 | 2008 |
| TTHM | MR | 3 | 2017 |
| Revised Total Coliform Rule | Other | 3 | 2023 |
| Chlorine dioxide | MR | 3 | 2023 |
| Styrene | MR | 3 | 2008 |
| DICHLOROMETHANE | MR | 3 | 2008 |
Violation Count vs. the National Corpus
Upper Surface Creek Domestic Wua has 279 recorded EPA violations, 90% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 10% carry more. 25% of this system's own violations are health-based (71 of 279), and it ranks #11,106 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)
279 Higher than most more violations than 90% 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 Upper Surface Creek Domestic Wua
71 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for CO0115784.
Sources: EPA SDWIS · Colorado Department of Public Health and Environment, Water Quality Control
Nationwide peers
279 violations · 2,800 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Upper Surface Creek Domestic Wua
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.