Chief Joseph Dam (CJD) All-in-one Oil Skimmer and Day Tank Replacement - W912DW25R0024

PURCHASE DESCRIPTION All-in-one Oil Skimmer and Day Tank Replacement:

DESCRIPTION OF WORK: The vendor shall provide a complete oil skimmer system which meets the specifications listed below. All components shall be new, and the skimmer system shall be shipped to the US Army Corps of Engineers at Chief Joseph Dam in Bridgeport, WA 98813. SPECIFICATIONS: Vertical tube type skimmer with integrated decanter and collection tank. The collection tank shall be stainless steel. Collection tank shall have a capacity between 65 (minimum) and 100 (maximum) gallons.

The skimmer must automatically transfer recovered oil to collection tank. The collection tank must have a float switch which automatically shuts off the oil skimmer when full. The skimmer must have both an audible annunciation and indicator lamps in the event the skimmer shuts down or loses power. The collection tank must have liquid level indicator lamps to signal when the unit is ¾ full and when full. The collection tank must have both an indicator lamp and audible alarm when full.

The collection tank must have a manually activated electric pump for transferring oil and water to “used oil” drums once the collection tank is full. The skimmer must automatically return the water separated from the oil to the sump. The skimmer must use a free-floating closed loop oil collector tube to recover oil from the water surface. The oil collector tube must operate without requiring any mounts or guides installed in sump. The skimmer system must be capable of recovering 65 – 100 gallons/hour.

The skimmer with integrated decanter and collection tank shall be mounted on a skid (as an all-in-one oil skimmer system). The skid shall have holes for mounting to a concrete floor or base (stationary installation). All components of the skimmer system must be designed to operate continuously (24/7). The skimmer and collector tube must recover oil from a sump with fluctuating water levels (The normal operating level for the sump is 15 to 35 feet from the finished floor).

The collector tube must extend 35 feet from the finished floor into a drainage sump. The required overall length for the collector tube is estimated at 78 feet based on the old skimmer (will need to work with vendor to determine optimum length based on final installation). The collector tube must be resistant to tangling up on itself while floating on water surface. The collector tube must operate within the existing sump opening (30 inches center to center).

The entire skid mounted skimmer system must fit within the existing skimmer system footprint of 30 inches x 74 inches. The power requirement is 120 VAC single phase. The skimmer system shall have a NEMA control box to house components for power, timers, lights, level switches, etc. All local alarms and indicator lamps must allow duplication to a remote annunciation panel.

DELIVERY: The complete all-in-one skimmer system shall be delivered to:

US Army Corps of Engineers Chief Joseph Dam Warehouse Highway 17 & Pearl Hill Road Bridgeport, WA 98813 SEE ATTACHED SOLICITATION AND TECHNICAL DRAWINGS (W912DW25R0024)