Community Water System · PWS OR4100399
Independence Water System
Operator location Independence, Oregon - 0% of 61 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 10,300 served per SDWIS.
- 10,300
- People served (this PWS)
- 61
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- 1 PFAS
- UCMR5 (this PWS)
Independence Water System standing, mid SDWIS violation third
0% of 61 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%). UCMR5: lower-third PFAS panel (≤ 2 compounds). Population rank #4,574 of 29,740 among systems serving 500+.
The verdict
Independence Water System lands in the middle third by violation volume (61), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (10,300; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is only 0% - almost all of this trail is monitoring or reporting. UCMR5 detected 1 PFAS compound (lower-third PFAS panel (≤ 2 compounds)).
- #4,574 of 29,740
- Population · /systems
- #62 of 373
- Population · OR
- 61
- Total EPA violations on record
- 0%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,648
- County
- Polk
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 59
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 11 | 2012 |
| COLIPHAGE | MR | 11 | 2018 |
| Nitrate | MR | 2 | 2007 |
| Tetrachloroethylene | MR | 2 | 2009 |
| BHC-GAMMA | MR | 1 | 2005 |
| Methoxychlor | MR | 1 | 2005 |
| Toxaphene | MR | 1 | 2005 |
| Glyphosate | MR | 1 | 2005 |
| OXAMYL | MR | 1 | 2005 |
| Simazine | MR | 1 | 2005 |
| Picloram | MR | 1 | 2005 |
| Dinoseb | MR | 1 | 2005 |
| Hexachlorocyclopentadiene | MR | 1 | 2005 |
| Carbofuran | MR | 1 | 2005 |
| Atrazine | MR | 1 | 2005 |
| Heptachlor | MR | 1 | 2005 |
| Heptachlor epoxide | MR | 1 | 2005 |
| 2,4-D | MR | 1 | 2005 |
| 2,4,5-TP | MR | 1 | 2005 |
| HEXACHLOROBENZENE | MR | 1 | 2005 |
| Benzo(a)pyrene | MR | 1 | 2005 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2005 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2005 |
| Chlordane | MR | 1 | 2005 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Diquat | MR | 1 | 2005 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2005 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2005 |
| Lead and Copper Rule | MR | 1 | 1992 |
Violation Count vs. the National Corpus
Independence Water System has 61 recorded EPA violations, 62% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 38% carry more. 0% of this system's own violations are health-based (0 of 61), and it ranks #4,574 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)
61 Around the middle fewer violations than 38% 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
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFHpS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTA | 5/16/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| NMeFOSAA | 5/16/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFTrDA | 5/16/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| NFDHA | 5/16/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHpA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 5/16/2023 | 3.20 ppt | 3.00 ppt | Detected |
| PFHxS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 5/16/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/16/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| NEtFOSAA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 5/16/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| 4:2 FTS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 5/16/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/16/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 5/16/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| 8:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
Health-based violations on Independence Water System
0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for OR4100399.
Sources: EPA SDWIS
Nationwide peers
61 violations · 10,300 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 with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Independence Water System
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Oregon compares on the same EPA violation measures. Oregon 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.