| 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 | DBP2 HAA5 ONLY | notes | Yearly | 01/01/2026 - 12/31/2026 | 272 | 1 | incomplete | 07/10/2025 | |||
| Seasonal sampling period: 07/01 thru 07/31 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | DBP2 TTHM ONLY | notes | Yearly | 01/01/2026 - 12/31/2026 | 272 | 1 | incomplete | 07/10/2025 | |||
| Seasonal sampling period: 07/01 thru 07/31 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | notes | 3 Years | 01/01/2028 - 12/31/2028 | 5 | 08/28/2025 | |||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | ARSENIC | 9 Years | 01/01/2023 - 12/31/2031 | 2,098 | 1 | done | 05/15/2024 | ||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,003 | 1 | done | 03/12/2024 | |||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 272 | 1 | incomplete | 03/20/2025 | ||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,003 | 1 | done | 03/12/2024 | |||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | PFAS | notes | Quarterly | 04/01/2026 - 06/30/2026 | 88 | 1 | incomplete | ||||
| Initial monitoring - 4 quarters only | |||||||||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | RAD - GROSS ALPHA | 9 Years | 01/01/2026 - 12/31/2034 | 3,194 | 1 | incomplete | 04/22/2024 | ||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | RAD - RADIUM 226/228 | 9 Years | 01/01/2026 - 12/31/2034 | 3,194 | 1 | incomplete | 04/22/2024 | ||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | RAD - URANIUM | 9 Years | 01/01/2023 - 12/31/2031 | 2,098 | 1 | done | 04/22/2024 | ||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | SOC | 3 Years | 01/01/2026 - 12/31/2028 | 1,003 | 1 | incomplete | 08/14/2023 | ||||
| EP-A EP FOR WELLS & N. UMPQUA RIVER | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 272 | 1 | incomplete | 08/14/2025 | ||||
| SRC-AH INTAKE FOR N. UMPQUA RIVER | CYANOTOXINS | 2 Weeks | -- | -- | -- | -- | -- | 10/27/2025 | |||
| Seasonal sampling period: 05/01 thru 10/31 | |||||||||||
| WTP-A TP FOR WELLS & N. UMPQUA RIVER | TOTAL ORGANIC CARBON | Monthly | 04/01/2026 - 04/30/2026 | 27 | 1 | incomplete | 01/21/2026 | ||||
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