Week 40, Part 1

We haven’t looked inside the Treatment structure for a while. The AeroMod piping is basically finished at this point. Last time I shot the interior walls the vertical pipes were in place but not the fittings at the business end down below-



In Operations the Headworks walls were covered with metal liner panel for ease of cleaning. The ceiling is coated with a high gloss epoxy which also cleans well-





Here the taper gets started in the Blower room-



And when it’s all finished (the taping, not the room)-



After our weekly construction meeting Alan Gay, Project Engineer from USKH, reviewed the Phosphorous Removal process with Paul Sifford, City of Plummer Plant Operator, from the newly installed walkway-



The Maintenance-Storage room is looking nice with cured epoxy and now the electricians start to move some panels in-



A view from outside the overhead door bay entrance-



Just northwest of the PREM structure will sit two large chemical storage tanks inside a concrete containment pad with 18” curb walls. Here they've prepare the grade for the concrete forms-



Any gravel on which a structure is built has to be tested for compaction. All West is the testing agency for this project. Here Rod Willard, City of Plummer Public Works Director, and Jason from Owens Construction wait for the test results from All West-



Speaking of testing & inspection, here an All West inspector witnesses a CNI crew member torque bolts on the PREM roof structure-



And finally we began air-testing pipe this week. This is the trial run with the inflatable ball in an unfinished portion of a gravity sewer line for the Operations building. In this test you block both ends of a run of pipe, usually 100 to 300 feet at a time, and load the pipe with 3.5 psi and check whether the pressure drops over a short period of time-