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Interrogation Site Metadata

WFS - West Fork Sanpoil River

Status:   Active - Operational
Site Type: Instream Remote Detection System  |  Organization: Colville Confederated Tribes
General Operational Period: Year Round
Start Date: 1/4/2018 12:00 AM

WFS is a permanent PIT tag interrogation system in the West Fork Sanpoil River. The Sanpoil River enters the Columbia River at RKM 981, which is 21 km upstream of Grand Coulee Dam. WFS is located 76 km upstream from the confluence with the Columbia River. The site consists of four 15 foot HDPE antennas anchored to the stream bed for pass-over detection. Antennas are configured in 2 separate rows. Each antenna is powered by a Biomark IS1001 reader multiplexed by an IS1001-MC. Power is delivered by a 1kw solar array that charges a 4 battery bank capable of 1000ah of reliable DC voltage. The site is not connected to any remote cellular or satellite communications and is only downloaded manually on site.

Current Operations

Last File Loaded: WFS-2022-123-P-001.json
Date Last File Loaded: 5/31/2022 4:20 PM
Date Last File Opened: 5/3/2022 10:32 AM
Date Last File Closed: 5/31/2022 11:30 AM
Last Observation Tag: 3DD.0077AB61B0
Last Observation Date: 5/30/2022 3:46 AM
Detection Summary: Last Day's Observations


Data Steward:

Holly McLellan


Coordinates: 48.458660, -118.749700  |  River Km: 981.076.000

Operational History

Operational history describes the period the site was interrogating for PIT tags. The comments provide anecdotal information about the operation of the site during this period. Site operational periods are updated typically at the end of the calendar year.

Year Start Date End Date Comments
2021 1/1/2021 12:00 AM 1/1/2022 12:00 AM Start and end dates based on timer tags.
2020 1/1/2020 12:00 AM 1/1/2021 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.
2019 1/1/2019 12:00 AM 1/1/2020 12:00 AM
2018 1/4/2018 12:00 AM 1/1/2019 12:00 AM
2017 Site installed November 29, but did not go fully operational until 2018.


Configuration metadata includes details about the equipment used at the site to detect and record PIT tags. A new configuration sequence record is created when equipment is added or removed from the site and the period of time it was active. A configuration sequence without an End Date is currently active.

Select Configuration Number:
Start Date:  11/29/2017
End Date:  ----

Site Configuration Diagrams:

Equipment History

Select a type to view the history of equipment installed at this site. A missing End Date implies the information about the equipment is current.

Select Equipment Type:
Equipment Code Description Start Date End Date

No Photos

Event Log Summary

Event Date Event Type Comments
1/11/2022 12:00:00 PM SiteUp

Snow removed from solar panels and batteries fully charged.

12/30/2021 1:41:00 AM SiteDown

Batteries drained below required operating voltage.

7/20/2020 1:15:00 PM SiteUp All nodes connected and operational.
6/21/2020 9:17:37 AM General Node 04 Connected
6/2/2020 11:39:11 AM General Node 03 Connected
4/9/2020 8:27:23 AM General Node 02 Not Connected
4/6/2020 12:58:36 PM General Node 01 Not Connected
3/20/2020 10:34:31 AM General Node 02 intermittent connection
3/20/2020 8:01:55 AM General Node 01 Intermittent connection
3/20/2020 2:12:52 AM General Node 03 Intermittent connection
3/17/2020 11:18:07 AM General Node 04 Intermittent connection
12/17/2019 1:00:00 PM General Antenna group order changed to PTAGIS convention
5/23/2019 11:00:00 AM General Node 04 connected
5/14/2019 12:30:00 PM General Node 01, 02, 03 connected
2/10/2019 2:50:00 PM General Node 01, 02, 03 intermittent connection
8/23/2018 11:34:00 AM General Node 03 connected
8/22/2018 1:30:00 PM General Node 03 intermittent connection
8/13/2018 4:30:00 AM General Node 04 intermittent connection
1/4/2018 12:00:00 AM SiteUp System Operational
11/29/2017 1:00:00 PM General Installation: Four 15 foot HDPE PIT tag antennas installed instream in the West Fork Sanpoil River near the confluence with the Sanpoil River. Antennas are powered by Biomark IS1001 transceivers, connected to the Biomark MTS-MC controller. Power is delivered by a 1kw solar array that charges a 4 battery bank capable of 1000ah of reliable DC voltage.

No Archived Event Logs