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Interrogation Site Metadata

ICL - Lower Icicle Instream Array

Status:   Active - Non-Operational
Site Type: Instream Remote Detection System  |  Organization: Washington Dept. of Fish and Wildlife
General Operational Period: Year Round
Start Date: 9/8/2011 1:07 PM

ICL is a permanent instream PIT tag interrogation site at RKM 0.4 on Icicle Creek. 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 (three 20-foot and three 15-foot) PVC antennas, installed in flat-plate configuration. Each antenna is powered by a Biomark IS1001 (ACN) and the ACNs were connected to a QST QuBE ACN controller until August 2019 when the QuBE was replaced with a Biomark IS1001 master controller. The antennas were built and installed by WDFW. The site is connected to grid power to charge the battery bank powering the detection system. A cellular modem is installed on site to provide remote communication and allow for automated data collection. A submersible pressure transducer and temperature probes were installed on site until August 2019 when they were removed.

Current Operations

Last File Loaded: ICL-2022-172-P-06D.xml
Date Last File Loaded: 6/23/2022 11:50 AM
Date Last File Opened: 6/21/2022 7:48 AM
Date Last File Closed: 6/23/2022 9:41 AM
Last Observation Tag: 3DD.003BDF068C
Last Observation Date: 6/23/2022 9:40 AM
Detection Summary: Last Day's Observations


Primary Contact:

Matthew Stilwater

Data Steward:

Jay Deason
509-664-3148 x22


Coordinates: 47.578648, -120.662589  |  River Km: 754.041.000

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 12/31/2020 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.
2019 8/8/2019 12:00 AM 12/31/2019 12:00 AM Start and end dates based on timer tags.
2018 1/1/2018 12:00 AM 10/30/2018 12:00 AM Start and end dates based on file open and close dates. File gap June 27 - October 1.
2017 1/1/2017 12:00 AM 1/1/2018 12:00 AM Start and end dates based on file open and close dates.
2016 1/1/2016 12:00 AM 1/1/2017 12:00 AM Start and end dates based on file open and close dates.
2015 1/1/2015 12:00 AM 1/1/2016 12:00 AM
2014 1/1/2014 12:00 AM 1/1/2015 12:00 AM
2013 1/1/2013 12:00 AM 1/1/2014 12:00 AM
2012 1/1/2012 12:00 AM 1/1/2013 12:00 AM
2011 9/8/2011 1:07 PM 1/1/2012 12:00 AM First year of operations. Site lost power, causing data loss from October 12-24; October 25-19; November 21-29; and December 10-21.


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.

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Start Date:  10/15/2014
End Date:  ----

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.

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Equipment Code Description Start Date End Date


Event Log Summary

Event Date Event Type Comments
10/6/2020 2:05:25 PM General Antennas 02 and 04 were unplugged at some point in mid August. Antennas were plugged back in on 10/06/2020.
9/10/2020 12:00:00 AM SiteDown Intermittent problems with power persisted from 8/10/2020 to 9/10/2020 as previous issues with power had caused the battery bank to reach failure. The battery bank was replaced on 9/10/2020
8/10/2020 1:30:40 PM SiteUp The GFCI at the site had been damaged by some sort of animal activity. Power supply was fixed and buffer download showed that array had been down from 8-6-20 at 00:07 to 8-10-20 at 11:33.
8/14/2019 9:12:00 AM General The reader at the interrogation site has been changed from a QuBE unit to a Biomark IS1001-MC.
10/29/2018 3:58:51 PM General The Interrogation site ICL has lost remote communication and due to power, access, and time drift issues has not provided accurate data from the period of 6/27/18 to 10/1/2018. Data will be manually uploaded monthly until remote communication is reestablished.
4/16/2018 11:00:00 AM General At interrogation site ICL on 4/16/2018 at approximately 11:00 AM, one 12 volt battery was replaced. All antennas are functioning. Site is fully operational.
8/29/2017 2:00:00 PM General At interrogation site ICL on 8/17/2017 at approximately 3:00 PM, Antenna #3 went offline. On 8/29/2017 at approximately 2:00 PM, Antenna #3 was brought back online. Antenna was unplugged and was plugged back in. All antennas at this site are functioning. Site is fully operational.
8/16/2016 2:00:00 PM General At interrogation site ICL, on 8/17/2016 at approximately 2:00 PM, a dropped tag was removed from antenna #5. All antennas are functioning properly. Site is fully operational.

Archived Event Logs