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Interrogation Site Metadata

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EHL - Entiat NFH Adult Ladder

Status:   Active - Non-Operational
Site Type: Hatchery Returns  |  Organization: U.S. Fish and Wildlife Service
General Operational Period: Seasonally
Start Date: 7/3/2013 12:00 AM

The EHL Adult Interrogation site is located in the Entiat National Fish Hatchery adult ladder. Entiat NFH is located west of Entiat, WA on the Entiat River 6.8 river miles upstream from the confluence with the Columbia River. Fish returning to the hatchery must travel approximately 483 river miles and negotiate passage through 8 mainstem Columbia River hydroelectric dams from initial entry from the Pacific Ocean. Two antennas monitored the ladder until July 2017, when a third antenna was installed.

Current Operations

Last File Loaded: EHL-2021-295-P-00D.xml
Date Last File Loaded: 10/22/2021 7:11 PM
Date Last File Opened: 10/22/2021 1:57 PM
Date Last File Closed: 10/22/2021 5:57 PM
Last Observation Tag: 3DD.003BE1DFEB
Last Observation Date: 10/22/2021 4:31 PM
Detection Summary: Last Day's Observations


Primary Contact:

Gregory Fraser

Data Steward:

Matt Cooper


Coordinates: 47.697360, -120.323100  |  River Km: 778.011

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
2020 6/24/2020 12:00 AM 11/10/2020 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.
2019 6/17/2019 12:00 AM 11/1/2019 12:00 AM Start and end dates based on timer tags.
2018 7/1/2018 12:00 AM 11/1/2018 12:00 AM Start and end dates based on timer tags.
2017 7/10/2017 12:00 AM 11/1/2017 12:00 AM Start and end dates based on timer tags.
2016 7/1/2016 12:00 AM 11/29/2016 12:00 AM Start and end dates based on file open and close dates.
2015 7/1/2015 12:00 AM 10/16/2015 12:00 AM Start and end dates based on file open and close dates.
2014 7/1/2014 12:00 AM 8/19/2014 12:00 AM Start and end dates based on file open and close dates.
2013 7/3/2013 12:00 AM 9/19/2013 12:00 AM Start and End dates taken from interrogation file open and close times.


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:  7/6/2017
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

No Photos

Event Log Summary

Event Date Event Type Comments
11/9/2020 9:10:00 AM SiteDown Site down for season
7/1/2020 9:10:00 AM SiteUp Site up for season
11/1/2019 2:31:58 PM SiteDown Site down for the season.
7/1/2019 2:54:11 PM SiteUp Site running for season
11/2/2018 9:45:00 AM General Site shut down for season
7/1/2018 8:27:00 AM SiteUp Site running. Automatic uploads
11/1/2017 10:10:00 AM General Seasonal shutdown.
6/28/2017 9:04:00 AM General Biomark IS1001-MTS system installed in June 2017. System consists of 2-IS1001 readers/antennas in the fishway and one IS1001/antenna mounted to the VAKI counter.
5/27/2015 7:57:00 AM General One antenna installed and working properly, the second antenna is not functioning and needs to be replaced
8/24/2014 7:57:00 AM General Antenna not working, needs repair
7/1/2014 12:01:00 AM SiteUp New antennas installed and began operating. 
8/15/2013 12:01:00 AM SiteDown Hatchery changed ladder operations, making antennas inefficient. Site had no tags uploaded due to this for the year. 

Archived Event Logs