| Chemical Sampling Schedule Status | |||||||||||
| Facility ID |
Analyte or Group | Sampling Interval |
Monitoring Period | Days Until End |
Samples Required |
Samples Received |
Last Sample Date |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Start | End | ||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 265 | 1 | incomplete | 08/05/2025 | |||
| Seasonal sampling period: 08/01 thru 08/31 | |||||||||||
| EP-B EP FOR CLACKAMAS RIVER | ARSENIC | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,187 | 1 | incomplete | 03/22/2024 | |||
| EP-B EP FOR CLACKAMAS RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 996 | 1 | done | 03/22/2024 | |||
| EP-B EP FOR CLACKAMAS RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 265 | 1 | incomplete | 01/15/2025 | ||||
| EP-B EP FOR CLACKAMAS RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 996 | 1 | done | 03/22/2024 | |||
| EP-B EP FOR CLACKAMAS RIVER | PFAS | notes | Quarterly | 04/01/2026 - 06/30/2026 | 81 | 1 | incomplete | ||||
| Initial monitoring - 4 quarters only | |||||||||||
| EP-B EP FOR CLACKAMAS RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2020 - 12/31/2028 | 996 | 1 | incomplete | 03/07/2017 | ||||
| EP-B EP FOR CLACKAMAS RIVER | RAD - RADIUM 226/228 | 9 Years | 01/01/2026 - 12/31/2034 | 3,187 | 1 | incomplete | 03/07/2017 | ||||
| EP-B EP FOR CLACKAMAS RIVER | RAD - URANIUM | 9 Years | 01/01/2026 - 12/31/2034 | 3,187 | 1 | incomplete | 03/07/2017 | ||||
| EP-B EP FOR CLACKAMAS RIVER | SOC | notes | 3 Years | 01/01/2026 - 12/31/2028 | 996 | 2 | incomplete | 04/12/2023 | |||
| EP-B EP FOR CLACKAMAS RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 265 | 1 | incomplete | 01/15/2025 | ||||
| SRC-BA CLACKAMAS RIVER | CYANOTOXINS | 2 Weeks | -- | -- | -- | -- | -- | 10/20/2025 | |||
| Seasonal sampling period: 05/01 thru 10/31 | |||||||||||
6 secs | |||||||||||