| 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 | TOC & ALKALINITY | Quarterly | 04/01/2026 - 06/30/2026 | 72 | 1 | incomplete | 01/14/2026 | ||||
| DIST-A DISTRIBUTION SYSTEM | ASBESTOS, DIST | notes | 9 Years | 01/01/2020 - 12/31/2028 | 987 | 1 | done | 07/21/2021 | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | notes | 3 Years | 01/01/2027 - 12/31/2027 | 20 | 08/11/2024 | |||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 256 | 1 | incomplete | 07/09/2025 | |||
| Seasonal sampling period: 04/01 thru 05/31 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Yearly | 01/01/2026 - 12/31/2026 | 256 | 1 | incomplete | 07/09/2025 | |||
| Seasonal sampling period: 08/01 thru 08/31 | |||||||||||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | ARSENIC | 9 Years | 01/01/2020 - 12/31/2028 | 987 | 1 | done | 08/12/2022 | ||||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 987 | 1 | done | 08/12/2022 | |||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 256 | 1 | incomplete | 03/05/2025 | ||||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 987 | 1 | done | 08/12/2022 | |||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2026 - 12/31/2034 | 3,178 | 1 | incomplete | 04/05/2017 | ||||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | RAD - RADIUM 226/228 | 6 Years | 01/01/2026 - 12/31/2031 | 2,082 | 1 | incomplete | 10/07/2020 | ||||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | RAD - URANIUM | 9 Years | 01/01/2026 - 12/31/2034 | 3,178 | 1 | incomplete | 04/05/2017 | ||||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | SOC | notes | 3 Years | 01/01/2026 - 12/31/2028 | 987 | 2 | incomplete | 10/11/2023 | |||
| EP-A EP FOR MILL CREEK AND SILETZ RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 256 | 1 | incomplete | 03/05/2025 | ||||
| WTP-A TP FOR MILL CREEK AND SILETZ RIVER | TOTAL ORGANIC CARBON | Quarterly | 04/01/2026 - 06/30/2026 | 72 | 1 | incomplete | 01/14/2026 | ||||
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