USArray Station Removal Report Form V1.0
STATION CODE: TA.M18K
STATION LOCALE DESCRIPTION: Stony River, AK
STATION REMOVAL LOG DATE: 05/08/2021
STATION/SENSOR DOWN TIME (UTC): 00:23 UTC
REMOVAL DESCRIPTION: Lithium batteries were removed one day earlier than the station removal. Sensor removed and casing cut off 6" below grade. Hut and station infrastructure removed.
ACTIONS TAKEN: Powered the station back up on arrival. Accessed Willard to issue the remove command for the STS5-A.
Sensor casing cutoff 8” below grade with a die grinder with abrasive wheels. The casing was back filled with some rock and site material, and then plugged with a 6" expansion end plug. The remaining hole was filled with dirt.
The hut was packed with the conduit, well cap, casing cut off, mustache mount and any other site debris. Removed the soil thermistor.
LAT/LONG OF SENSOR HOLE: N 61.490666, W 155.824191
SENSOR ORIENTATION MEASUREMENTS:
Measured with Octans Unit: 0.4 degrees
Original measurement: 0.03 degrees
COMMENTS: The casing cutoff process took 20 minutes and consumed 5 cutoff wheels
REMOVED:
Q330 TagId – 1995; bc – 5005241
Baler 44 sn – 18499; bc – 5008129
STS5A sn – 130836; bc – 5016286
VIE bc – 5009085
QEP sn – 117054; bc – 5001620
infra SETRA sn – 4657799; bc – 5011718
infra NCPA sn - H111160366; bc – 5011742
Regulator Board sn – 468; bc – 5010293
BGAN Modem sn – 35398030013043; bc – 5002674
BGAN SIM sn – 898709914412002422
XI202 sn – 729; bc – 5018251
WXT520 sn – M4730604; bc – 5018182
Power sys 1.6.4
Charge Controller bc – 5017834
LiFePO4 sn – 5365; bc – 5017333
LiFePO4 sn – 5370; bc – 5017337
LiFePO4 sn – 5407; bc – 5017365
LiFePO4 sn – 5410; bc – 5017367
LiFePO4 sn – 5486; bc – 5017489
LiFePO4 sn – 5494; bc – 5017496
DAMAGE: None, conduit was at the surface
LEFT AT SITE: Cutoff casing below surface.