The goal of the University is to continue a successful water treatment program, which can produce clean heat transfer surfaces with a minimum corrosion rate at a reasonable cost. The Contractor shall provide for water treatment in: a) hot water boilers to prevent oxygen corrosion, acidic corrosion, condensate corrosion, deposition in boiler, and/or sludge; b) cooling towers to prevent corrosion deposition, microbiological fouling or growth and sludge; c) hot and chilled water closed loop systems to prevent microbiological growth, corrosion, sludge, and/or fouling; and d) all pipes and associated equipment used in the processes to prevent scale, sludge deposits, microbiological growth, corrosion, and/or pitting. Makeup water is used on many of the systems listed and is considered associated with the equipment for which it provides make-up. Makeup water quantity to hot water systems and chilled water systems are not separately metered. For open cooling systems, the contractor will implement an effective chemical treatment and service program to: • Control general corrosion within all open systems to a measurable amount of less than 2.0 mil per year, for carbon and stainless steels. Admiralty and other copper alloys shall be controlled to less than 0.2 mil per year. Corrosion rates shall be measured on site by using a corrosivity meter. No coupon sampling shall be permitted. • Prevent hardness, silica, or other scale forming deposits in cooling towers heat exchangers or related system components. • Control biological and bacterial growths to prevent corrosion and fouling of heat exchangers, cooling towers or related system components. Must have a clearly published company position on Legionella bacteria control. • Effectively neutralize, emulsify and or disperse of process fluid contaminants within process cooling systems. • For closed heating, chilled, and cooling systems, general corrosion must be controlled to a measurable amount of less than 0.5 mils/year for carbon steel, stainless steel, admiralty, and other copper alloys. Biological and bacterial growth must be controlled to prevent corrosion and failing of heat exchangers or related system components. • The Contractor must have the capability to field test for bacteria and provide results to the University within 48 hours. Extensive additional microbiological testing for fungi, sulfate-reducers, and total aerobic bacteria must be conducted by the Contractor as needed. The Contractor must own and be able to provide borescope equipment for routine inspections. • The Contractor must have the capability for on-site analysis of energy efficiency. Boiler efficiency, overall chiller efficiency, condenser efficiency, and evaporator efficiency testing must be able to be performed by the contractor on a regular basis. • The Contractor shall, once each year, during the period of the contract, sample and test each cooling tower for Legionella Pneumophila. An independent laboratory shall do testing. The reports of findings shall include the levels found and the acceptable levels by American Society of Heating Refrigerating and Air conditioning Engineers (ASHRAE). Within 10 business days, the report shall be submitted to the Building Systems Supervisor. In the event the testing proves the presence of the bacteria in quantities greater than 10 bacteria per milliliter, the Contractor will communicate to the Contracting Officer's Representative (COR) via email on proper decontamination procedures and timing. The University’s Facilities Management Department will supervise all decontamination work. Decontamination procedures must begin no later than 10 business days after receiving the report.
