B09_-_Attachment_8_-_Canyon_WWTP_Flow_Schematic_nomenclature_0001.pdf

This document is an item list for a Controls Upgrade/PLC Replacement project at Canyon Wastewater Treatment Plant (WWTP) in Yellowstone National Park, dated August 11, 2011.

The list specifies 43 line items of equipment and components required for the wastewater treatment facility upgrade. Items include flow meters (Items 1, 12, 24, 39), level sensors (Items 6, 10, 31, 36), various pumps such as grinder, regenerative blower, floating aerators, decant, waste sludge, and chemical metering pumps (Items 3-5, 11, 21-22, 27, 34-35, 37), float switches (Items 2, 30), pressure switches (Items 28-29), valves for flow control and shut-off applications (Items 25, 33, 38, 40-42), turbidimeters (Item 43), flocculators (Item 26), and a differential pressure transmitter (Item 32). Quantities range from one to ten units per item type. The equipment serves multiple treatment functions including headworks flow control, lagoon aeration, chemical dosing (liquid alum, sodium hypochlorite, sodium bisulfate, and chlorine), clarifier operations, filter processes, and backwash systems. The document appears to be an internal equipment specification list rather than a formal solicitation document, with some items containing handwritten annotations indicating modifications or clarifications to the original entries.