Community Water System · PWS OR4100342
Grants Pass, City Of
Operator location Grants Pass, Oregon - 0% of 48 violations are health-based (lower-third health share (≤ 1%)); surface water source; 37,138 served per SDWIS.
- 37,138
- People served (this PWS)
- 48
- EPA violations (this PWS)
- 0
- Health-based (this PWS)
- No PFAS
- UCMR5 (this PWS)
Grants Pass, City Of standing, mid SDWIS violation third
0% of 48 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: UCMR5 tested, none detected. Population rank #1,499 of 29,740 among systems serving 500+.
The verdict
Grants Pass, City Of lands in the middle third by violation volume (48), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (37,138; 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 tested this system and reported no PFAS above the minimum reporting level.
- #1,499 of 29,740
- Population · /systems
- #20 of 373
- Population · OR
- 48
- 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.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 11,030
- County
- Josephine
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 45
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 10 | 2012 |
| Coliform (TCR) | MR | 6 | 2015 |
| Consumer Confidence Rule | Other | 2 | 2025 |
| Interim Enhanced Surface Water Treatment Rule | MR | 2 | 2012 |
| Nitrate | MR | 1 | 2005 |
| Arsenic | MR | 1 | 2005 |
| cis-1,2-Dichloroethylene | MR | 1 | 2005 |
| Xylenes, Total | MR | 1 | 2005 |
| p-Dichlorobenzene | MR | 1 | 2005 |
| Vinyl chloride | MR | 1 | 2005 |
| 1,1-Dichloroethylene | MR | 1 | 2005 |
| trans-1,2-Dichloroethylene | MR | 1 | 2005 |
| 1,2-Dichloroethane | MR | 1 | 2005 |
| 1,2-Dichloropropane | MR | 1 | 2005 |
| 1,1,2-Trichloroethane | MR | 1 | 2005 |
| CHLOROBENZENE | MR | 1 | 2005 |
| Benzene | MR | 1 | 2005 |
| Ethylbenzene | MR | 1 | 2005 |
| Styrene | MR | 1 | 2005 |
| TTHM | MR | 1 | 2007 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2007 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Toluene | MR | 1 | 2005 |
| 1,1,1-Trichloroethane | MR | 1 | 2005 |
| Carbon tetrachloride | MR | 1 | 2005 |
| o-Dichlorobenzene | MR | 1 | 2005 |
| Tetrachloroethylene | MR | 1 | 2005 |
| Trichloroethylene | MR | 1 | 2005 |
| DICHLOROMETHANE | MR | 1 | 2005 |
Violation Count vs. the National Corpus
Grants Pass, City Of has 48 recorded EPA violations, 55% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 44% carry more. 0% of this system's own violations are health-based (0 of 48), and it ranks #1,499 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)
48 Around the middle fewer violations than 44% 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. 0 of 116 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMBA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 9/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 9/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 9/3/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 9/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| 9Cl-PF3ONS | 9/3/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeS | 9/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 9/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 9/3/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFNA | 9/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| HFPO-DA | 9/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 9/3/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 9/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 9/3/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 9/3/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| 8:2 FTS | 9/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| ADONA | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 9/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 9/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 9/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 6/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 6/3/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 6/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 6/3/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 6/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 6/3/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| 6:2 FTS | 6/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 6/3/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFBA | 6/3/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 6/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 6/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 6/3/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 6/3/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 6/3/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| NFDHA | 6/3/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
Health-based violations on Grants Pass, City Of
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 OR4100342.
Sources: EPA SDWIS
Nationwide peers
48 violations · 37,138 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 Grants Pass, City Of
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.