| OR41 00225 | CORVALLIS, CITY OF | Classification: COMMUNITY |
|---|---|---|
| Contact: | CHAD MARSHALL OR TOM HUBBARD | Phone: 541-754-1758 View on Map |
| PO BOX 1083 | County: BENTON | |
| CORVALLIS, OR 97339 | Activity Status: Active -- History | |
| Population: 61,468 | Number of Connections: 17,489 | |
| Operating Period: January 1 to December 31 | Regulating Agency: REGION 2 | |
| Certified Operator(s) | Owner Type: LOCAL GOVERNMENT | |
| Required: Y | Licensed By: N/A | |
| Distribution class: 4 | Last Survey Date: Aug 13, 2024 - Outstanding Performer! | |
| Treatment class: 4 | ||
| Filtration Endorsement Required: No | Source Water Protection Status | |
| Sources | |||||
|---|---|---|---|---|---|
| Facility ID | Facility Name | Activity Status | Availability | Source Type | |
| EP-A | EP FOR TAYLOR WTP | A | SW | ||
| SRC-AA | WILLAMETTE RIVER | A | Permanent | SW | |
| EP-B | EP FOR ROCK CREEK WTP | A | SW | ||
| SRC-BA | NORTH FORK ROCK CREEK RES | A | Permanent | SW | |
| SRC-BB | SOUTH FORK ROCK CREEK | A | Permanent | SW | |
| SRC-BC | GRIFFITH CREEK | A | Permanent | SW | |
| SRC-BD | ROCK CREEK (EMERGENCY) | I | Emergency | SW | |
| Treatment | |||||
|---|---|---|---|---|---|
| Facility ID | Facility Name | Filter Type | Giardia Removal Credit |
Treatment Process | Treatment Objective |
| WTP-A | TP FOR TAYLOR WTP | Conventional Filtration | 2.5-log | FILTRATION, RAPID SAND | PARTICULATE REMOVAL |
| HYPOCHLORINATION, POST | DISINFECTION | ||||
| HYPOCHLORINATION, PRE | DISINFECTION | ||||
| PH/ALKA ADJ-SODA ASH | CORROSION CONTROL | ||||
| FLUORIDATION | OTHER | ||||
| COAGULATION | PARTICULATE REMOVAL | ||||
| FLOCCULATION | PARTICULATE REMOVAL | ||||
| PH ADJUSTMENT, PRE | PARTICULATE REMOVAL | ||||
| RAPID MIX | PARTICULATE REMOVAL | ||||
| SEDIMENTATION | PARTICULATE REMOVAL | ||||
| PERMANGANATE | TASTE / ODOR CONTROL | ||||
| WTP-B | TP FOR ROCK CREEK WTP | Conventional Filtration | 2.5-log | FILTRATION, RAPID SAND | PARTICULATE REMOVAL |
| HYPOCHLORINATION, POST | DISINFECTION | ||||
| HYPOCHLORINATION, PRE | DISINFECTION | ||||
| PH/ALKA ADJ-SODA ASH | CORROSION CONTROL | ||||
| FLUORIDATION | OTHER | ||||
| COAGULATION | PARTICULATE REMOVAL | ||||
| FLOCCULATION | PARTICULATE REMOVAL | ||||
| PH ADJUSTMENT, PRE | PARTICULATE REMOVAL | ||||
| RAPID MIX | PARTICULATE REMOVAL | ||||
| SEDIMENTATION | PARTICULATE REMOVAL | ||||
| PERMANGANATE | TASTE / ODOR CONTROL | ||||
| Consumer Confidence Reports (Last 5 Years) | |||
|---|---|---|---|
| For Year | Date Received | Date Certified | |
| 2025 | Due 7/1/2026 | Due 7/11/2026 | |
| 2024 | 4/30/2025 | 4/30/2025 | |
| 2023 | 6/3/2024 | 5/30/2024 | |
| 2022 | 6/23/2023 | 6/23/2023 | |
| 2021 | 3/11/2022 | 3/11/2022 |
| Cross Connection/Backflow Prevention Information (Last 5 Years) | ||
|---|---|---|
| Enabling Authority Received | Annual Summary Report | Cross Connection Fee Status |
| Yes (pdf) | 2025 - Received (pdf) 2024 - Received (pdf) 2023 - Received (pdf) 2022 - Received (pdf) 2021 - Received (pdf) |
2026 - Unpaid Late 2025 - Paid 2024 - Paid 2023 - Paid 2022 - Paid |