| 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 | ||||||||||
| CH-A COMMON HEADER FOR WTP-A | TOTAL ORGANIC CARBON | notes | Quarterly | 01/01/2026 - 03/31/2026 | 13 | 1 | incomplete | 05/05/2025 | |||
| DIST-A DISTRIBUTION SYSTEM | ASBESTOS, DIST | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,019 | 1 | done | 03/01/2023 | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | notes | 3 Years | 01/01/2028 - 12/31/2028 | 20 | 08/28/2025 | |||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 288 | 2 | incomplete | 11/03/2025 | |||
| Seasonal sampling period: 11/01 thru 11/30 | |||||||||||
| EP-A EP FOR CLACKAMAS RIVER | ARSENIC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,019 | 1 | incomplete | 04/17/2018 | |||
| EP-A EP FOR CLACKAMAS RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,019 | 1 | incomplete | 04/17/2018 | |||
| EP-A EP FOR CLACKAMAS RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 288 | 1 | incomplete | 02/12/2025 | ||||
| EP-A EP FOR CLACKAMAS RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,019 | 1 | incomplete | 04/17/2018 | |||
| EP-A EP FOR CLACKAMAS RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2026 - 12/31/2034 | 3,210 | 1 | incomplete | 05/05/2025 | ||||
| EP-A EP FOR CLACKAMAS RIVER | RAD - RADIUM 226/228 | 9 Years | 01/01/2026 - 12/31/2034 | 3,210 | 1 | incomplete | 05/05/2025 | ||||
| EP-A EP FOR CLACKAMAS RIVER | RAD - URANIUM | 9 Years | 01/01/2026 - 12/31/2034 | 3,210 | 1 | incomplete | 05/05/2025 | ||||
| EP-A EP FOR CLACKAMAS RIVER | SOC | notes | 3 Years | 01/01/2026 - 12/31/2028 | 1,019 | 2 | incomplete | 05/05/2025 | |||
| EP-A EP FOR CLACKAMAS RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 288 | 1 | incomplete | 05/05/2025 | ||||
| SRC-AA CLACKAMAS RIVER | CYANOTOXINS | 2 Weeks | -- | -- | -- | -- | -- | 10/26/2025 | |||
| Seasonal sampling period: 05/01 thru 10/31 | |||||||||||
7 secs | |||||||||||