| 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 | 04/01/2026 - 06/30/2026 | 62 | 1 | incomplete | 11/03/2025 | |||
| DIST-A Distribution System | ASBESTOS, DIST | notes | 9 Years | 01/01/2020 - 12/31/2028 | 977 | 1 | done | 02/23/2022 | |||
| DIST-A Distribution System | LEAD & COPPER | notes | 3 Years | 01/01/2027 - 12/31/2027 | 20 | 06/18/2024 | |||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| DIST-A Distribution System | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 246 | 1 | done | 02/11/2026 | |||
| Seasonal sampling period: 02/01 thru 02/28 | |||||||||||
| DIST-A Distribution System | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 246 | 1 | done | 02/11/2026 | |||
| Seasonal sampling period: 11/01 thru 11/30 | |||||||||||
| EP-A EP FOR NORTH SANTIAM RIVER | ARSENIC | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,168 | 1 | incomplete | 02/15/2023 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 977 | 1 | done | 02/15/2023 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 246 | 1 | done | 02/11/2026 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 977 | 1 | done | 02/15/2023 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | PFAS | notes | Quarterly | 04/01/2026 - 06/30/2026 | 62 | 1 | incomplete | ||||
| Initial monitoring - 4 quarters only | |||||||||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2020 - 12/31/2028 | 977 | 1 | incomplete | 02/27/2018 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - RADIUM 226/228 | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,168 | 1 | incomplete | 03/08/2021 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - URANIUM | 9 Years | 01/01/2023 - 12/31/2031 | 2,072 | 1 | incomplete | 02/27/2018 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | SOC | notes | 3 Years | 01/01/2026 - 12/31/2028 | 977 | 2 | incomplete | 08/01/2023 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 246 | 1 | done | 02/11/2026 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | 2 Weeks | 04/19/2026 - 05/02/2026 | 3 | 1 | incomplete | 08/15/2022 | ||||
| Seasonal sampling period: 05/01 thru 10/31 | |||||||||||
5 secs | |||||||||||
| Expired Schedules | |||||||||
| Facility ID |
Analyte or Group | Sampling Interval |
Start | End | Samples Required |
Notes | |||
| DIST-A Distribution System | HAA5 & TTHM | Quarterly | 01/01/2004 | 12/31/2004 | 1 | Schedule Reflects 1 RT Sample Per QT Per WTP | |||
| DIST-A Distribution System | HAA5 & TTHM | Quarterly | 01/01/2005 | 03/31/2005 | 2 | ||||
| DIST-A Distribution System | HAA5 & TTHM | Yearly | 04/01/2005 | 09/30/2013 | 1 | Sample between June 1 and Sept. 30. | |||
| DIST-A Distribution System | STAGE 2 DBP | Quarterly | 10/01/2013 | 12/31/2013 | 2 | Sample in Nov, Feb, May, and Aug | |||
| EP-A EP FOR NORTH SANTIAM RIVER | ARSENIC | Yearly | 01/01/2002 | 12/31/2006 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/16/2024 | 09/20/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/30/2019 | 08/03/2019 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - GROSS ALPHA | 6 Years | 01/01/2017 | 12/31/2019 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2008 | 12/31/2016 | 1 | Schedule Reflects Monitoring Reduction Granted | |||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - URANIUM | 6 Years | 01/01/2008 | 12/31/2013 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | 2 Weeks | 07/15/2018 | 06/28/2019 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | 2 Weeks | 09/01/2019 | 06/15/2024 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/16/2024 | 09/20/2024 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/30/2019 | 08/30/2019 | 1 | ||||