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Task 2.A.3: Coordination Support for DPS Pump Testing During the 1 October 2007 meeting, an operational testing and monitoring program was recommended to identify potential issues with the DPS pumps when operating below the specified minimum speeds. As described above, the reduced operating speeds being contemplated to improve the DPS operational performance (in terms of pump stage overlap) are not part of Flowserve's published guidelines. However, based on Kennedy/Jenks' coordination with Flowserve on this issue, there is good indication from their technical staff that that operation at these speeds should be acceptable. Flowserve staff have indicated they are available to assist with verifying acceptable operation after the programming revisions are made. Task 2.A.3 involves testing of the DPS pump operation following modifications to the programming (completed as part of Task 2.A.2) and comparision to the baseline data (described as part of Task 2.A.1). We recommend the City follow through with this testing, as discussed at the 1 October 2007 meeting, to provide verification that the control logic modifications provide the desired operation. We also recommend that Flowserve staff have an opportunity to observe the pump performance testing and to provide their input regarding any concerns over possible adverse pump wear or damage under the revised operating conditions. We anticipate that City's operational staff would coordinate with the pump service firms to schedule Flowserve's participation and to conduct the testing itself. We propose to offer the follow support services under Task 2A.3: a. Develop the testing and evaluation outline for use by the City in developing the testing plan. b. Participate in one (1) day of on-site testing. c. Collate and interpret the testing data, included comparison to baseline data and feedback from Flowserve. The results would be documented in a short field memo to be submitted to the City. B. Distribution Box Gate Control The City has not provided us with guidance whether engineering support services are needed, and we have not included an estimate of effort associated with this warranty item. If the City requests Kennedy/Jenks' support, we will submit a request for additional authorization before work proceeds. C. Design Criteria for Current and Future SBSA Recycled Water Demand You have asked us to defer work on this item. We understand SBSA is successfully receiving flow to the Landscape Impoundment (LI) through the original First Step Project distribution pipeline. Since flow to the LI passes through the DPS flow meter, no control logic modifications are required at this time to ensure stable DPS operations. We also understand that SBSA will not be requesting recycled water through the 12-inch supply line, which is currently fitted with a blind flange, for at least 2 years. At the end of that time, it will be necessary to install the designated future flowmeter on the 12-inch supply line and incorporate that signal into the DPS control logic. It may be efficient and desirable to include the PLC/PanelView programming changes necessary for the added flowmeter signal into the revisions being made as part of Task 2.A.2. However, no effort has been estimated or included in the current proposal for this warranty item. Please note that Task 2 does not include development of a status report at the end of the specified work period summarizing accomplishments. Agreement over$10K 13 City Attorney Approved Version 111803