OHA Drinking Water Services
PWS ID: 94713 ---- COLUMBIA RIDGE LANDFILL/RECYCL
| Chemical Sampling Schedule Status | |||||||||||
| Facility ID |
Analyte or Group | Sampling Interval |
Monitoring Period | Days Until End |
Samples Required |
Samples Received |
Last Sample Date |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| Start | End | ||||||||||
| DIST-A Distribution System | LEAD & COPPER | notes | 3 Years | 01/01/2025 - 12/31/2025 | 5 | 08/09/2022 | |||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | DI(2-ETHYLHEXYL) PHTHALATE | Yearly | 01/01/2024 - | 1 | future | 06/29/2023 | |||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | ARSENIC | 9 Years | 01/01/2020 - 12/31/2028 | 1,856 | 1 | done | 04/06/2022 | ||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,856 | 1 | done | 04/06/2022 | |||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | NITRATE | Yearly | 01/01/2023 - 12/31/2023 | 29 | 1 | incomplete | 04/06/2022 | ||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 1,856 | 1 | done | 04/06/2022 | |||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | SOC | 3 Years | 01/01/2023 - 12/31/2025 | 760 | 1 | incomplete | 04/06/2022 | ||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | VOLATILE ORGANICS | 3 Years | 01/01/2023 - 12/31/2025 | 760 | 1 | incomplete | 07/05/2022 | ||||
8 secs | |||||||||||