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Interrogation Site Metadata

COC - Cow Creek ISA @ stream mouth

Status:   Active - Operational
Site Type: Instream Remote Detection System  |  Organization: Biomark
General Operational Period: Year Round
Start Date: 2/15/2011 12:00 AM

In-stream detection system consisting of a tandem array located in Cow Creek. The array (COC) located at 0.5 km upstream of the confluence with the Imnaha River (N 45.76774, W 116.744037) consists of two arrays , deployed serially 10 m apart, of one 20 ft Biomark flat panel antenna each. COC is operated by the Integrated Status and Effectiveness Project (ISEMP) cooperators Nez Perce Tribe and Quantitative Consultants, Inc. and was installed for continuous monitoring on January 12, 2011.

Current Operations

Last File Loaded: COC-2022-159-P-00A.xml
Date Last File Loaded: 6/24/2022 8:01 AM
Date Last File Opened: 6/8/2022 2:43 AM
Date Last File Closed: 6/14/2022 10:43 AM
Last Observation Tag: 3DD.003E12C969
Last Observation Date: 6/10/2022 3:27 PM
Detection Summary: Last Day's Observations


Primary Contact:

Kyle Meier

Data Steward:

Brett Turley


Coordinates: 45.767740, -116.744037  |  River Km: 522.308.006.001

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
2021 1/27/2021 12:00 AM 6/10/2021 12:00 AM Start and end dates based on timer tags.
2020 1/1/2020 12:00 AM 6/17/2020 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.
2019 2/28/2019 11:00 PM 6/5/2019 11:00 PM Start and end dates based on file open and close dates.
2018 1/4/2018 12:30 PM 6/15/2018 2:30 PM
2017 2/13/2017 12:00 AM 7/12/2017 12:00 AM Start and end dates based on File Created and File Closed times.
2016 2/22/2016 12:00 AM 7/12/2016 8:17 AM
2015 1/6/2015 12:00 AM 7/17/2015 12:00 AM
2014 1/1/2014 12:00 AM 1/1/2015 12:00 AM
2012 1/1/2012 12:00 AM 10/16/2012 12:00 AM A tree fell on the enclosure October 16, ending data collection for the year.
2011 2/15/2011 12:00 AM 1/1/2012 12:00 AM First year of operation. Site operated continuously from February 15.


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:  1/1/2011
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
6/14/2022 12:00:00 AM General

Cow Creek array was shut down for the year.  COC ran continuously without disruption during adult steelhead migration 2022.

2/4/2022 12:00:00 AM SiteUp

Cow Creek PIT tag array (COC) started operations on February 4, 2022.

6/9/2021 3:11:02 PM General Previous log incorrect. End of 2021 monitoring at COC on June 9, 2021.
6/9/2021 3:06:29 PM SiteDown Cow Creek Array has been shut off due to the end of adult steelhead migration for 2020.
6/17/2020 5:14:00 PM SiteDown Cow Creek (COC) PIT array turned off for the remainder of 2020. Will start collecting data again in early 2021 for adult steelhead. COC ran continuously without disruption in 2020.
6/17/2020 8:20:00 AM General Satellite SIM Card swapped, site visit. General clean up and maintenance performed. Brush and trees removed from antenna area. PS 100 Battery Replaced.
12/3/2019 4:27:00 PM SiteUp COC started collecting data on December 3, 2019 and has run continuously without disruption through February 4, 2020.
10/24/2019 2:05:00 PM General COC maintenance: Removed part of fallen cottonwood tree on top antenna A1. Replaced a deck lid showing severe erosion on antenna A1. Installed aluminum angle shields on leading edge of antennas A1 and A2 due to moderate deck lid erosion. Installed connector for antenna cable to antenna on antenna A1.
6/5/2019 3:32:00 PM General Cow Creek PIT array has been shut off for the remainder of 2019 because the adult steelhead migration is complete.
2/7/2019 4:29:00 PM SiteUp Cow Creek array (COC) is operational on February 7, 2019. Remote communication is down due to poor reception for the new Hugh's net Satellite gear.
6/15/2018 2:28:49 PM SiteDown Cow Creek PIT array has been shut off for the remainder of 2018 because of the completion of adult steelhead migration and low summer flows in Cow Creek.
2/2/2018 9:45:00 AM SiteUp Cow Creek Array (COC) is now in operation starting 2/2/2018. The FS1001M MUX transceiver was replaced due to an un-responsive MUX. The site is functioning without disruption through 2/7/18.
1/4/2018 7:18:00 AM SiteUp Cow Creek array (COC) was turned back on January 4 at 12:30 PM and is operational for 2018.
7/12/2017 4:05:00 PM SiteDown Cow Creek (COC) has been shut down for the remainder of 2017. It will be restarted in early 2018.
5/4/2017 7:46:00 AM General The optical isolator between the MUX and data logger was replaced at Cow Creek array (COC) on May 4, 2017. COC has run continuously without disruption through 5/10/17.
2/28/2017 9:00:00 AM General Cow Creek array antenna A1 lost current was replaced with a 20 ft. Biomark PVC antenna on February 28, 2017
2/14/2017 7:28:00 AM SiteUp Cow Creek array was restarted and began collecting data on 2/14/17.
7/12/2016 8:17:00 AM SiteDown Cow Creek array was turned off for the year 2016 and will resume normal operations in early 2017.
2/2/2016 9:17:00 AM SiteUp Cow Creek array began normal operations for 2016.
9/23/2015 1:59:00 PM General Antenna 2 began losing current on 7/06/15 and was replaced on 9/23/15 with a 20 ft. Biomark lite style antenna.
7/17/2015 12:08:29 PM SiteDown The Cow Creek Array seized operations today due to lack of flow and potential fire outbreaks in Hells Canyon.
1/6/2015 1:46:00 PM SiteUp Cow Creek array was turned back on 1/6/2015 and is operating continuously without disruption.
8/6/2014 9:36:00 AM SiteDown COC has seized operations due to close proximity to wildfires and low streamflow.  COC operations will resume when conditions change.

Archived Event Logs