TTY 415.554.3488 September 11, 2019 Sent via U.s. Mail and email to [email protected] The Honorable Garrett L. Wong

Recommendations 6

• R1

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  Confirm that all AWSS assets are entered exercised every year through the AWSS Critical Valve into CDD's asset management system and PM's are established Exercise Program. SFPUC Response: All AWSS asset locations are entered into CDD's Maximo and GIS databases. PM's are established for regular maintenance. Maintenance
• R2

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  Perform Regular maintenance and testing SFPUC Response: According to SFPUC Maximo maintenance/testing records, regular maintenance and testing is performed in accordance with maintenance plans. Maintenance
• R3

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  Check, flush and repair all suction connections regularly SFPUC Response: All suction connections were assessed 4-5 years ago. Some were cleaned as needed at that time. A high-pressure jetting machine was recently purchased, and personnel is being trained on its use. Maintenance
• R4

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  Establish pipeline flushing program for AWSS SFPUC Response: Non-potable fire-fighting water systems are not typically flushed as part of regular flushing maintenance program. However, flushing naturally occurs when the AWSS is utilized approximately 20 times per year. Maintenance
• R5

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  Establish leak detection program and a pipeline leak database to monitor potential hot spots SFPUC Response: SFPUC maintenance activities have helped reduced EFWS leakage by over 500,000 gallons per day, improving system performance while reducing water waste. A condition assessment project was implemented using Smart Ball technology. In addition, the system water supply sources are regularly monitored for water levels/filling requirements which will indicate potential leaks in the pipeline system. Maintenance
• R6

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  Establish a cistern inspection, filling and testing program SFPUC Response: A cistern inspection and testing program has been developed for implementation in 2019. In addition, a filling procedure has been established with SFFD. As part of the AWSS Critical Valve Exercise Program, CDD has identified 66 AWSS valves as “critical” (66 of 1,685 valves, or approximately 4 percent (source: CDD GIS). Critical valves for AWSS were defined based on the following criteria for operational importance: • Tank bypass valves • Tank supply valve from higher pressure to lower pressure tank supply source • Closed control valves to isolate piping within an infirm area • Distribution system divide gate valve, manual operation (allows higher pressure zone to feed into lower pressure zone within the distribution pressure zone to feed into lower pressure zone within the distribution system) • Distribution system divide gate valve, motorized operation (allows higher pressure zone to feed into lower pressure zone within the distribution system) • Open control valves to allow a single supply source to feed an infirm area • Balancing valve, TP reservoir only (allows the two TP reservoir basins to equalize in level) Critical Valves: These EFWS critical valves are broken down by type below. All 66 of the AWSS critical valves were exercised in 2018-2019 and will be exercised every year. Valve Type (# of Critical Valves per type): Ashbury Tank By-Pass Valves (10) Ashbury Tank Supply Valve #1 [Ashbury to Jones] (1) Ashbury Tank Supply Valve #2 [Ashbury to Jones] (1) Close Control Gate Valve (15) Division Gate Valve (14) Jones Street Tank By-Pass Valves (10) Motorized Division Gate Valve or Motorized Line Gate Valve (6) Open Control Gate Valve [Infirm Area] (6) Twin Peaks East Reservoir Lead Valve [Supply, TP to Ashbury] (1) Twin Peaks Reservoir Balancing Valve (1) Twin Peaks West Reservoir Lead Valve [Supply, TP to Ashbury] (1) Total AWSS Critical Valves (66) Act Now Before It Is F13 In the 2015 MOU between the SFFD and the President, San Francisco Disagree, partially There are no formal protocol outlining specific joint AWSS exercises or drills R10 By no later than June 30, 2020, the 2015 MOU President, San Francisco Will be implemented SFFD and SFPUC will work together to amend the MOU by Too Late: SFPUC, the two agencies agreed to conduct Public Utilities Commission in the MOU; however, there are multiple opportunities to train together [for F13] between the SFPUC and the SFFD should be Public Utilities Commission June 30, 2020. Aggressively Expand joint AWSS trainings annually, but there is no [September 15, 2019] during operation, maintenance, and construction of improvement projects amended to include a detailed roadmap for [September 15, 2019] and Enhance Our formal protocol outlining specific joint AWSS for the AWSS facilities as previously described in the response to the Grand annual emergency response exercises, including High-Pressure exercises or drills using hypothetical disaster Jury questions sent in May 2019. simulated disaster and earthquake drills Emergency scenarios, such as a major earthquake. involving the AWSS and the PWSS. Firefighting Water The SFFD and SFPUC have had multiple field training opportunities during System the maintenance and start-up testing of AWSS facilities in the last 5 years. [July 17, 2019] For example, on December 20, 2018, SFFD and SFPUC personnel conducted emergency generator start-up procedures for Pump Station No. 2 (PS2). On April 5, 2018 SFPUC and SFFD performed joint-department full-scale test of AWSS Pump Station No. 1 (PS1) including pumping seawater into an isolated section of the AWSS distribution through system hydrants. On August 29, 2018, SFPUC, SFFD and DPW personnel conducted a seawater drafting drill and confirmation test from the new suction connection at Pier 50. In addition, SFFD and SFPUC periodically test different facilities to assure systems are in good working order, and to train personnel on operations and joint-agency communications. For example, a full-scale emergency exercise was performed between SFFD and SFPUC staff in January 2016 at Islais Creek, which involved the Phoenix Fireboat pumping sea water directly into an isolated section of the Jones pressure system via AWSS manifold connection. Sea water discharged from select hydrants within the isolated section of the system where pressure and flow were monitored at each discharge point. The SFFD uses their Disaster Response Manual and Water Supply Manual to provide guidelines for training. Training occurs throughout the year and is ongoing. In March 2018, the SFPUC sponsored a tabletop drill focused on CDD emergency response in coordination with SFFD response. Participants were asked to utilize Incident Command Structure (ICS) principles to ( ) p p respond to a hypothetical earthquake event (determine ICS, formulate specific objectives, and document