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Interrogation Site Metadata

NFW - North Fork Walla Walla River

Status:   Decommissioned
Site Type: Instream Remote Detection System  |  Organization: U.S. Fish and Wildlife Service
General Operational Period:
Start Date: 5/18/2012 12:00 AM
End Date: 4/19/2013 12:00 AM

The NFW PIT interrogation site is located on the North Fork Walla Walla River approximately 267 meters upstream from the confluence with the South Fork Walla Walla River. The site consists of three pass over PVC antennas that overlap to cover the full wetted width of the river. A 1001M multiplexor is powered by a hardline source.


Primary Contact:

Nate Queisser

Data Steward:

Will Simpson


Coordinates: 45.898661, -118.304099  |  River Km: 509.081.001

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
2013 1/1/2013 12:00 AM 4/19/2013 12:00 AM Site decommissioned on April 19, 2013
2012 5/18/2012 12:00 AM 1/1/2013 12:00 AM


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:  5/18/2012
End Date:  4/19/2013

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

Archived Event Logs