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<br />7 of 11 <br /> <br /> <br />i. Return the barge to the dock in AC-1. Disconnect and remove the Garmin from the <br />mounting bracket prior to crossing the cables securing splash aerators 65 and 66. <br />a) Reverse the procedure in Step D.7.a. to stow the barge. <br />b) Key on splash aerators 65 and 66 using the Square D key. Do not operate the <br />breaker. <br />c) Notify the Day Operator that the biosolids sampling operators are off the pond <br />and the aerators have been turned back on. <br />ii. Stow the bio boat. <br />a) The boat captain should drop off the sampling assistant beside the launch. <br />b) The sampling assistant backs the truck and boat trailer back down the ramp until <br />the trailer is completely submerged. <br />c) The boat captain drives the boat onto the trailer, and with the motor running to <br />keep the boat at the front of the trailer, latches both hooks and tightens the strap, <br />making sure the bow of the boat is above the bow rest and the latch for the hooks <br />is below the bow rest. <br />d) Once secure, turn off the motor and trim the prop to the up position allowing it to <br />rest on the support peg. <br />e) The sampling assistant pulls the boat out of the water just far enough to allow the <br />boat captain to disembark and get in the truck. <br />f) Reverse the steps in 7.d.i-x to remove the bio boat from the Recirculation Channel. <br />g) Notify the Day Operator that the biosolids sampling operators are off the pond. <br />h) Remove the plug and hose down the boat and Mud Buddy propeller, making sure <br />there is no visible debris inside or outside the boat or on the trailer. <br />i) Put the boat away on the asphalt pad west of the Primaries. Note: Backing the <br />trailer requires two operators. <br />j) If the bio-boat will not be used for more than two (2) months, fill the boat gas can <br />and add two tablespoons of fuel stabilizer (Stored in Stage III). <br />iii. Stow the dinghy. <br />a. Return to the Recirculation Pump Station to park the barge or withdraw the dinghy <br />from the Recirculation Channel. <br />b. If using, drive the dinghy to the Blue Garage or South Dechlor for cleaning. Hose all <br />visible debris off the inside and outside of the boat and return the dinghy to the <br />asphalt pad west of the Primaries. <br />r. Deliver samples to the lab as soon as possible. There is a 6-hour holding time limit for <br />collected samples. <br />The EEL staff will fully mix the samples before splitting aliquots for analysis. Given the equipment <br />and environment available in the lab, mixing and splitting samples in the lab yields representative <br />aliquots and composite samples; do not split the samples on board the sample vessel. <br />F. Data and Records Management <br />Documentation of sampling events is recorded on a Chain of Custody form submitted to, filed with, <br />and maintained by EEL staff.