Site Type

Site Name


LLC - Loup Loup Creek Instream Array

LLC is a permanent PIT Tag interrogation system on Loup Loup Creek. Loup Loup Creek enters the Okanogan River at RKM 27.2, within the city of Malott, WA. LLC is located 0.42 km from the confluence with the Okanogan River. In June 2013, the site consisted of 3 PVC antennas anchored to the stream bed in pass-over configuration. In January 2018, the instream array was reconfigured with three 10 foot HDPE pipe antennas anchored to the stream bed for pass-over detection. Antennas are configured in 3 separate rows that span the wetted width at base flow. Each antenna is power by a Biomark IS1001 reader multiplexed by an IS1001-MC. The site is on grid power running a linear power supply that in turn powers the detection system. LLC has remote communication abilities provided by a cellular modem.

Operated by:


First year:


Last year:




Site Contacts


Randy Johnson
(509) 422-7454


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015
2016 1/1/2016 1/1/2017 Start and end dates based on timer tags.
2015 1/1/2015 1/1/2016
2017 1/1/2017 1/1/2018 Start and end dates based on timer tags.
2013 3/7/2013 1/1/2014 Antennas changed from pass-thru to flat plate configuration on June 26.
2018 1/1/2018 1/1/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 110

Start Date: 1/30/2018

End Date:

Config Seq: 100

Start Date: 3/7/2013

End Date: 1/30/2018

Event Logs