Site Type

Site Name


WTL - White River, Wenatchee Basin

WTL is a permanent instream PIT tag interrogation site at RKM 2.88 on the White River. The site consists of two rows of antennas, with each row spanning the wetted width of the channel during base flows. Each row consists of six 20-foot PVC antennas, installed in flat-plate configuration. Each antenna is powered by a Biomark IS1001 (ACN) and the ACNs are connected to a Biomark IS1001-MC (MTS). The antennas were built and installed by WDFW. The site is powered by a thermoelectric generator. WTL has remote communication abilities provided by a cellular modem and Campbell Scientific CR1000 datalogger. A submersible pressure transducer and temperature probe sensors are also installed to provide environmental condition data collection.

Operated by:


First year:


Last year:




Site Contacts


Jay Deason
(509) 664-3148 x22


Matthew Stilwater
(509) 664-3148


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015 Site down May 3-5. Site down for 11 hours on May 9.
2016 1/1/2016 1/1/2017
2015 1/1/2015 1/1/2016
2017 1/1/2017 1/1/2018 Start and end dates based on timer tags.
2009 7/1/2009 10/26/2009 First year of operation. The site was without power between 8/24 19:47 and 8/27 10:12. The array was shut down at 11:49 on October 26, 2009 until further notice.
2010 3/22/2010 1/1/2011 Detection data between April 1-9 were lost when the transceiver buffer filled and was overwritten with subsequent detection events. A second, lower, array (C0) began operating on June 14. Due to power issues, there were no data collected between Oct. 16-27 or Nov. 17-22. Power was lost again between Nov. 30 and Dec. 8. The batteries failed between Dec. 17-28.
2011 3/4/2011 1/1/2012 Site operations were spotty until March 25. Upper array down from June 26 - Jul 5. Downstream array buffer overrun caused loss of data from July 25-27. B0 array did not record data from September 1-6. Site down from October 28-November 2. A0 array not functional as of November 2. B0 array lost data from November 23-30. Antenna C2 disconnected or broken on December 20.
2012 1/1/2012 12/30/2012 Multiple antenna and array outages occurred throughout the year. See 2012 event log for details. Batteries lost power on December 30.
2013 2/20/2013 1/1/2014 Many gaps in data collection occurred; see 2013 event log archive for details. Site was changed from a dual Mux configuration to an ACN/MTS system on November 5, but was shut down on November 7 for repairs. Site became fully operational in new configuration on December 12.
2018 1/1/2018 1/1/2019 Start and end dates based on timer tags.
2019 1/1/2019 12/31/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 120

Start Date: 11/5/2013

End Date:

Config Seq: 110

Start Date: 6/14/2010

End Date: 11/5/2013

Config Seq: 100

Start Date: 4/1/2009

End Date: 6/14/2010

Event Logs