OHA Drinking Water Services
| OR41 00379 | JOINT WATER COMMISSION | Classification: COMMUNITY - Wholesale |
|---|---|---|
| Contact: | CHRIS WILSON | Phone: 503-615-6671 |
| 150 E MAIN ST | County: WASHINGTON | |
| HILLSBORO, OR 97123 | Activity Status: ACTIVE -- History | |
| Population: 400,000 | Number of Connections: 4 | |
| Operating Period: January 1 to December 31 | Regulating Agency: REGION 1 | |
| Certified Operator(s) | Owner Type: LOCAL GOVERNMENT | |
| Required: Y | Licensed By: N/A | |
| Distribution class: None | Approved Drinking Water Protection Plan: No | |
| Treatment class: 4 | Source Water Assessment: Yes | |
| Filtration Endorsement Required: No | Last Survey Date: May 18, 2021 | |
| Sources | |||||
|---|---|---|---|---|---|
| Facility ID | Facility Name | Activity Status | Availability | Source Type | |
| EP-A | EP FOR TUALATIN RIVER | A | SW | ||
| SRC-AA | TUALATIN RIVER | A | Permanent | SW | |
| Treatment | |||||
|---|---|---|---|---|---|
| Facility ID | Facility Name | Filter Type | Giardia Removal Credit |
Treatment Process | Treatment Objective |
| WTP-A | TP FOR TUALATIN RIVER | Conventional Filtration | 2.5-log | FILTRATION, RAPID SAND | PARTICULATE REMOVAL |
| GASEOUS CHLORINATION, POST | DISINFECTION | ||||
| GASEOUS CHLORINATION, PRE | DISINFECTION | ||||
| PH ADJ-CAUSTIC SODA | CORROSION CONTROL | ||||
| COAGULATION | PARTICULATE REMOVAL | ||||
| FLOCCULATION | PARTICULATE REMOVAL | ||||
| RAPID MIX | PARTICULATE REMOVAL | ||||
| SEDIMENTATION | PARTICULATE REMOVAL | ||||
| Consumer Confidence Reports (Last 5 Years) | |||
|---|---|---|---|
| Only non-wholesale community water systems require consumer confidence reports. |
| Cross Connection/Backflow Prevention Information (Last 3 Records) | ||
|---|---|---|
| Enabling Authority Received | Annual Summary Report Received |
Fee Invoice Paid |
| No | 2007 | 2008 |
| 2006 | 2007 | |
| 2005 | 2006 | |