| 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 | notes | Quarterly | 01/01/2026 - 03/31/2026 | 5 | 1 | done | 01/27/2026 | |||
| DIST-A DISTRIBUTION SYSTEM | LEAD & COPPER | notes | 3 Years | 01/01/2026 - 12/31/2026 | 30 | incomplete | 06/18/2023 | ||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | notes | Quarterly | 01/01/2026 - 03/31/2026 | 5 | 2 | done | 01/27/2026 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | ARSENIC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,011 | 1 | done | 05/12/2020 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,011 | 1 | done | 05/12/2020 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | NITRATE | Yearly | 01/01/2026 - 12/31/2026 | 280 | 1 | incomplete | 05/13/2025 | ||||
| EP-A EP FOR CREEKS - FOREST GROVE | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,011 | 1 | done | 05/12/2020 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | PFAS | notes | Quarterly | 01/01/2026 - 03/31/2026 | 5 | 1 | incomplete | ||||
| Initial monitoring - 4 quarters only | |||||||||||
| EP-A EP FOR CREEKS - FOREST GROVE | RAD - GROSS ALPHA | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,202 | 1 | incomplete | 06/20/2017 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | RAD - RADIUM 226/228 | notes | 9 Years | 01/01/2026 - 12/31/2034 | 3,202 | 1 | incomplete | 06/20/2017 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | RAD - URANIUM | 9 Years | 01/01/2023 - 12/31/2031 | 2,106 | 1 | done | 07/18/2023 | ||||
| EP-A EP FOR CREEKS - FOREST GROVE | SOC | notes | 3 Years | 01/01/2026 - 12/31/2028 | 1,011 | 2 | incomplete | 10/03/2023 | |||
| EP-A EP FOR CREEKS - FOREST GROVE | VOLATILE ORGANICS | Yearly | 01/01/2026 - 12/31/2026 | 280 | 1 | incomplete | 05/13/2025 | ||||
| WTP-A TP FOR CREEKS - FOREST GROVE | TOTAL ORGANIC CARBON | notes | Quarterly | 01/01/2026 - 03/31/2026 | 5 | 1 | done | 01/27/2026 | |||
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 | 12/31/2008 | 1 | Raw and filtered TOC and alkalinity | |||
| DIST-A DISTRIBUTION SYSTEM | HAA5 & TTHM | Quarterly | 01/01/2002 | 03/31/2009 | 8 | 4 per WTP per QT | |||
| DIST-A DISTRIBUTION SYSTEM | HAA5 & TTHM | Quarterly | 04/01/2009 | 03/31/2012 | 2 | 1 per WTP per QT | |||
| DIST-A DISTRIBUTION SYSTEM | STAGE 2 DBP | Quarterly | 04/01/2012 | 03/31/2013 | 4 | Sample in Jan, April, July & Oct | |||
| EP-A EP FOR CREEKS - FOREST GROVE | ARSENIC | Yearly | 01/01/2002 | 12/31/2010 | 1 | ||||
| EP-A EP FOR CREEKS - FOREST GROVE | RAD - URANIUM | 6 Years | 01/01/2008 | 12/31/2013 | 1 | ||||
| WTP-A TP FOR CREEKS - FOREST GROVE | TOTAL ORGANIC CARBON | Monthly | 01/01/2002 | 12/31/2008 | 1 | Post Filtration TOC | |||