Week 33, Part 2- Mechanical, LS-2 and Treatment views

R&R Masonry finished our CMU walls for the Mechanical building this week. The 2nd lift was topped off and wrapped up Monday with a grout pour-





Rod (City of Plummer Public Works Director) and Alan (Project Engineer) reviewed the UV Disinfection room early in the week-



Challenger Electric finished conduit work under the UV room slab-



Here are before & after shots of the UV room for the week. The 2nd shot represent finished height- 12 feet of CMU block above foundation walls-





Valves were installed at the Effluent Lift Station (LS-2)-





And at the end of the week the inspector (moi) climbed down into the Treatment building aeration basin to look at the Aero Mod equipment. The first shot is the 2nd stage Aeration Basin. Steel diffusers will be installed at the bottom of these full-height pvc pipes fairly soon. In the background you can see some black objects at the top of some pipes. Those are screened inlets carrying the water to another phase of Treatment-



This is the Clarifier basin. The bottom of the ladder is 16 feet below top of wall. All of the "rooms" in this building are 16 feet deep. Pipes are attached to gray suction hoods at the bottom. The hardware beneath the catwalk deals with "return activated sludge" so I won't go into any further detail on that issue. It's almost lunchtime as I write this! (and that's all for this week...)