CJD Powerhouse Sump Technical Drawing - 950088.pdf

This is a technical drawing showing the oil skimmer arrangement for a station service bay at Chief Joseph Dam, labeled as drawing number SK-CJP-349. The drawing depicts a plan view of a drainage sump oil skimmer installation, showing the layout and spatial relationships of key components within the service bay area. The drawing includes details of existing equipment locations, drainage sump placement, and dimensional information, with specific notations for metal grating and floor elevations. The technical drawing provides installation guidance for the oil skimmer system described in the related pre-solicitation, which specifies requirements for a replacement vertical tube-type skimmer system with integrated decanter and collection tank.

The drawing helps visualize the space constraints mentioned in the pre-solicitation requirements, particularly the 30-inch center-to-center sump opening limitation and the 30 x 74 inch maximum footprint for the skid-mounted system. It illustrates the physical context where the new oil skimmer system will need to operate with a collector tube extending 35 feet down into the drainage sump.