ROdata_XL211_BLANK.xls

This is an operational data log and monitoring template for the City of Pasadena Water and Power Department's reverse osmosis water treatment system located at the Glenarm Power Plant in Pasadena, California. The spreadsheet contains technical formulas and calculation parameters for tracking reverse osmosis system performance, including normalized data calculations for system salt passage, permeate flow, differential pressure, water transport coefficients, and salt transport coefficients. The file includes a blank data entry template dated January 27, 2003, and an actual operational monitoring log covering the period from May 12, 2017 through May 23, 2017, documenting daily measurements of feed temperature, feed salinity, permeate salinity, concentrate flow, permeate flow, system pressures, product conductivity, product flow, and product outlet pressure. The system is designed to produce approximately 8 million gallons of demineralized and deionized water annually for electric power generation, with monitoring conducted across multiple stages including pre-treatment cartridge filters, reverse osmosis skids with dual stages, and polishing equipment. Operational limits and specifications are established for chemical dosing (sodium bisulfate antiscalent at 65 milliliters), feed pH range (7.5-9.0), product flow capacity (75-230 gallons per minute), and system pressures monitored at feed, reject, and product outlet points.

The file serves as a technical reference document and operational record for bidders responding to the City's solicitation for Reverse Osmosis, Degasification and Ion Exchange System Support Services, providing detailed specification data about the existing infrastructure, equipment performance expectations, and historical monitoring parameters that potential vendors must understand to effectively support system maintenance and operation.