| 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-B COMMON HEADER FOR WTP-B | TOTAL ORGANIC CARBON | Quarterly | 04/01/2026 - 06/30/2026 | 66 | 1 | incomplete | 02/03/2026 | ||||
| DIST-A DISTRIBUTION SYSTEM | ASBESTOS, DIST | notes | 9 Years | 01/01/2020 - 12/31/2028 | 981 | 1 | done | 12/14/2021 | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | notes | 3 Years | 01/01/2026 - 12/31/2026 | 30 | incomplete | 09/06/2023 | ||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Quarterly | 04/01/2026 - 06/30/2026 | 66 | 2 | incomplete | 01/21/2026 | |||
| EP-B EP FOR SOUTH SANTIAM RIVER | ARSENIC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 981 | 1 | done | 01/06/2026 | |||
| EP-B EP FOR SOUTH SANTIAM RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 981 | 1 | done | 01/06/2026 | |||
| EP-B EP FOR SOUTH SANTIAM RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 250 | 1 | done | 01/06/2026 | ||||
| EP-B EP FOR SOUTH SANTIAM RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 981 | 1 | done | 01/06/2026 | |||
| EP-B EP FOR SOUTH SANTIAM RIVER | PFAS | notes | Quarterly | 04/01/2026 - 06/30/2026 | 66 | 1 | incomplete | ||||
| Initial monitoring - 4 quarters only | |||||||||||
| EP-B EP FOR SOUTH SANTIAM RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2026 - 12/31/2034 | 3,172 | 1 | incomplete | 03/18/2025 | ||||
| EP-B EP FOR SOUTH SANTIAM RIVER | RAD - RADIUM 226/228 | 6 Years | 01/01/2023 - 12/31/2028 | 981 | 1 | done | 01/06/2026 | ||||
| EP-B EP FOR SOUTH SANTIAM RIVER | RAD - URANIUM | 9 Years | 01/01/2026 - 12/31/2034 | 3,172 | 1 | incomplete | 03/18/2025 | ||||
| EP-B EP FOR SOUTH SANTIAM RIVER | SOC | notes | 3 Years | 01/01/2026 - 12/31/2028 | 981 | 2 | incomplete | 05/06/2025 | |||
| EP-B EP FOR SOUTH SANTIAM RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 250 | 1 | incomplete | 03/18/2025 | ||||
6 secs | |||||||||||
| Expired Schedules | |||||||||
| Facility ID |
Analyte or Group | Sampling Interval |
Start | End | Samples Required |
Notes | |||
| CH-A COMMON HEADER FOR WTP-A | TOC & ALKALINITY | Monthly | 01/01/2002 | 04/30/2007 | 1 | Raw and filtered TOC and alkalinity | |||
| CH-A COMMON HEADER FOR WTP-A | TOC & ALKALINITY | Quarterly | 01/01/2008 | 05/07/2019 | 1 | Schedule reflects monitoring reduction granted. | |||
| CH-A COMMON HEADER FOR WTP-A | TOC & ALKALINITY | Quarterly | 05/01/2007 | 12/31/2007 | 1 | Schedule reflects monitoring reduction granted. | |||
| DIST-A DISTRIBUTION SYSTEM | HAA5 & TTHM | Quarterly | 01/01/2002 | 09/30/2013 | 1 | Schedule Reflects Monitoring Reduction Granted | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 3 Years | 01/01/2009 | 06/30/2016 | 30 | Sample between June 1 and Sept. 30 | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 6 Months | 01/01/2019 | 12/31/2019 | 60 | ||||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 6 Months | 07/01/2002 | 06/30/2005 | 60 | ||||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | Yearly | 01/01/2006 | 12/31/2008 | 30 | Sample Between June 1st and Sept 30th | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | Yearly | 01/01/2020 | 12/31/2022 | 30 | sample between June 1 and Sept. 30 | |||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | Quarterly | 10/01/2013 | 09/30/2014 | 4 | Sample During Peak Historical Month and Every 90 days Before/After | |||
| EP-A EP FOR SANTIAM CANAL | ARSENIC | 9 Years | 01/01/2011 | 05/07/2019 | 1 | Schedule Reflects Monitoring Reduction Granted | |||
| EP-A EP FOR SANTIAM CANAL | ARSENIC | Yearly | 01/01/2002 | 12/31/2009 | 1 | ||||
| EP-A EP FOR SANTIAM CANAL | IOC | 9 Years | 01/01/2002 | 05/07/2019 | 1 | Schedule Reflects Monitoring Reduction Granted | |||
| EP-A EP FOR SANTIAM CANAL | NITRATE | Yearly | 01/01/2002 | 05/07/2019 | 1 | ||||
| EP-A EP FOR SANTIAM CANAL | NITRITE | 9 Years | 01/01/2002 | 05/07/2019 | 1 | Schedule Reflects Monitoring Reduction Granted | |||
| EP-A EP FOR SANTIAM CANAL | RAD - GROSS ALPHA | 9 Years | 01/01/2008 | 05/07/2019 | 1 | Schedule reflects monitoring reduction granted. | |||
| EP-A EP FOR SANTIAM CANAL | RAD - RADIUM 226/228 | 6 Years | 01/01/2017 | 05/07/2019 | 1 | ||||
| EP-A EP FOR SANTIAM CANAL | RAD - RADIUM 226/228 | 9 Years | 01/01/2008 | 12/31/2016 | 1 | Schedule reflects monitoring reduction granted. | |||
| EP-A EP FOR SANTIAM CANAL | RAD - URANIUM | 9 Years | 01/01/2008 | 05/07/2019 | 1 | Schedule reflects monitoring reduction granted. | |||
| EP-A EP FOR SANTIAM CANAL | SOC | 3 Years | 01/01/2002 | 05/07/2019 | 2 | 2 Consec. QT Samples | |||
| EP-A EP FOR SANTIAM CANAL | VOLATILE ORGANICS | Yearly | 01/01/2002 | 05/07/2019 | 1 | ||||
| SRC-AA SANTIAM CANAL (SO.SANTIAM) | CYANOTOXINS | 2 Weeks | 07/15/2018 | 01/24/2019 | 1 | ||||
| WTP-A TP FOR SANTIAM CANAL | TOTAL ORGANIC CARBON | Monthly | 01/01/2002 | 04/30/2007 | 1 | Post Filtration TOC | |||
| WTP-A TP FOR SANTIAM CANAL | TOTAL ORGANIC CARBON | Quarterly | 01/01/2008 | 05/07/2019 | 1 | Schedule reflects monitoring reduction granted. | |||
| WTP-A TP FOR SANTIAM CANAL | TOTAL ORGANIC CARBON | Quarterly | 05/01/2007 | 12/31/2007 | 1 | Schedule reflects monitoring reduction granted. | |||