| 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 | ASBESTOS, DIST | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,186 | 1 | incomplete | 01/07/2025 | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | notes | Yearly | 01/01/2026 - 12/31/2026 | 264 | 5 | incomplete | 09/01/2025 | |||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 264 | 1 | incomplete | 06/30/2025 | |||
| Seasonal sampling period: 06/01 thru 06/30 | |||||||||||
| EP-A EP FOR NORTH SANTIAM RIVER | ARSENIC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 995 | 1 | done | 06/11/2024 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 995 | 1 | done | 06/11/2024 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 264 | 1 | done | 01/06/2026 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 995 | 1 | done | 06/11/2024 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | PFAS | notes | Quarterly | 04/01/2026 - 06/30/2026 | 80 | 1 | incomplete | ||||
| Initial monitoring - 4 quarters only | |||||||||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - GROSS ALPHA | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,186 | 1 | incomplete | 01/05/2021 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - RADIUM 226/228 | 6 Years | 01/01/2023 - 12/31/2028 | 995 | 1 | incomplete | 06/12/2018 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - URANIUM | notes | 9 Years | 01/01/2023 - 12/31/2031 | 2,090 | 1 | incomplete | 01/05/2021 | |||
| EP-A EP FOR NORTH SANTIAM RIVER | SOC | 3 Years | 01/01/2026 - 12/31/2028 | 995 | 1 | incomplete | 06/11/2024 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 264 | 1 | done | 01/06/2026 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | 2 Weeks | -- | -- | -- | -- | -- | 10/20/2025 | |||
| 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 | ASBESTOS, DIST | 3 Years | 01/01/2002 | 12/31/2007 | 1 | ||||
| DIST-A DISTRIBUTION SYSTEM | HAA5 & TTHM | Quarterly | 01/01/2004 | 12/31/2007 | 1 | Schedule Reflects 1 RT Sample Per QT Per WTP | |||
| DIST-A DISTRIBUTION SYSTEM | HAA5 & TTHM | Yearly | 01/01/2008 | 12/31/2013 | 1 | Sample between June 1 and Sept. 30. | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 3 Years | 01/01/2005 | 12/31/2007 | 10 | Sample Between June 1st and Sept 30th | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 3 Years | 01/01/2008 | 12/31/2017 | 5 | Sample Between June 1st and Sept 30th | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 3 Years | 01/01/2019 | 09/30/2024 | 5 | Collect samples between June 1 and September 30 at cold water drinking water taps. | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 6 Months | 01/01/2018 | 12/31/2018 | 10 | ||||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | 6 Months | 01/01/2025 | 12/31/2025 | 10 | ||||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | Yearly | 01/01/2002 | 12/31/2002 | 10 | Sample Between June 1st and Sept 30th | |||
| EP-A EP FOR NORTH SANTIAM RIVER | ARSENIC | Yearly | 01/01/2002 | 12/31/2004 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | Daily | 07/02/2019 | 07/11/2019 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | Daily | 07/10/2024 | 07/15/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | Daily | 07/18/2024 | 08/16/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | Daily | 08/20/2024 | 08/28/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | Daily | 09/01/2024 | 09/06/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/09/2024 | 07/09/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/23/2019 | 07/01/2019 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 07/14/2019 | 09/07/2019 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 07/20/2025 | 08/01/2025 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 08/18/2024 | 08/19/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | CYANOTOXINS | WK | 09/08/2024 | 09/30/2024 | 1 | ||||
| EP-A EP FOR NORTH SANTIAM RIVER | RAD - RADIUM 226/228 | 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 | 06/22/2019 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | 2 Weeks | 09/08/2019 | 06/06/2024 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | 2 Weeks | 10/13/2024 | 07/19/2025 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/09/2024 | 10/11/2024 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | WK | 06/23/2019 | 09/07/2019 | 1 | ||||
| SRC-AA NORTH SANTIAM RIVER | CYANOTOXINS | WK | 07/20/2025 | 08/01/2025 | 1 | ||||