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Reports until 11:17, Tuesday 18 February 2020
H1 OpsInfo (OpsInfo)
jeff.jones@LIGO.ORG - posted 11:17, Tuesday 18 February 2020 - last comment - 16:58, Friday 28 February 2020(55156)
Start of controlled burn of tumbleweeds along X-arm.

Bubba arranged for the Hanford Fire Department to begin a controlled burn this morning, starting at EX so that they would be well away from the end station as Tuesday maintenance activities draw to a close. We are grateful that this hazard is being removed, and for the expert care they are showing in the process.

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jeff.jones@LIGO.ORG - 16:58, Friday 28 February 2020 (55356)OpsInfo

As a follow-up to the controlled burn, plots of HVAC filter dP for corner/mids/ends were displayed to look for any corresponding uptick in dP near the Feb 18 timeframe. None were found. Plots are attached; lower graphs show pressure vs. date for one-month intervals.

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