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 |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Start | End | ||||||||||
| DIST-A Distribution System | LEAD & COPPER | notes | 3 Years | 01/01/2022 - 12/31/2022 | 5 | 08/20/2019 | |||||
| Seasonal sampling period: 06/01 thru 09/30 | |||||||||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | ARSENIC | 9 Years | 01/01/2020 - 12/31/2028 | 2,863 | 1 | incomplete | 06/18/2018 | ||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | IOC | notes | 9 Years | 01/01/2020 - 12/31/2028 | 2,863 | 1 | incomplete | 11/25/2013 | |||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | NITRATE | Yearly | 01/01/2021 - 12/31/2021 | 306 | 1 | incomplete | 11/18/2020 | ||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | NITRITE | notes | 9 Years | 01/01/2020 - 12/31/2028 | 2,863 | 1 | incomplete | 05/06/2013 | |||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | SOC | 3 Years | 01/01/2020 - 12/31/2022 | 671 | 1 | incomplete | 08/20/2019 | ||||
| EP-A EP FOR WELLFIELD (WELLS #1, #2, #6) | VOLATILE ORGANICS | 3 Years | 01/01/2020 - 12/31/2022 | 671 | 1 | incomplete | 08/20/2019 | ||||
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