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Home My WebLink About07.a. (Handout) PG&E Public Safety Power Shutoff (PSPS) program presentation 7/25/2019 Item 7.a. (Handout) HOW IS CENTRAL SAN PREPARING FOR PACIFIC GAS AND ELECTRIC COMPANY'S PUBLIC SAFETY POWER SHUTOFF PROGRAM Board of Directors Meeting y July 25, 2019 Ann Sasaki Deputy General Manager - 1 AGENDA Background — Public Safety Power Shutoff (PSPS) Impacts to Central San's Facilities Central San's Response Plan for a PSPS Next Steps Iz 1 7/25/2019 BACKGROUND • Pacific Gas& Electric Company(PG&E)has notified customers that they may turn off electricity in designated areas,when necessary, due to extreme weather and wildfire danger. PG&E is calling this the Public Safety Power Shutoff(PSPS). • PG&E will monitor conditions across their system and evaluate whether to turn off electric lines when elevated weather conditions, including a potential for fire risk, are forecast. • The PSPS includes all electric lines, both distribution and transmission,that pass through high fire-threat areas. • These areas are designated by the California Public Utilities Commission as elevated(Tier 2)or extreme(Tier 3)risk for wildfire. 7 _ 3 CALIFORNIA PUBLIC UTILITIES COMMISSION FIRE THREAT AREAS 1u-n.�Nraa `t 2 7/25/2019 NOTIFICATION PROCESS • PG&E's goal is to notify customers 48 hours in advance when possible. • PG&E has contact numbers for Central San, including our Treatment Plant Operations Control Room that is staffed 24/7. • After the extreme weather has passed, PG&E must inspect all lines before re-energizing the system. This process can take between three to five days to complete. Central San is scheduling a meeting with PG&E staff to discuss the notification of shutoff and return-to-service process. •� I 5 IMPACT TO CENTRAL SAN'S FACILITIES °.N. • The majority of Central San's '�. ®�® facilities appear to be outside of '- Tier 2 and Tier 3. • Treatment Plant • Collection System Building • 18 Pumping Stations o • However, because the energy system relies on power lines that are an interconnected grid, our plan assumes under certain scenarios, Maw Central San's facilities may be impacted. o� 6 3 7/25/2019 WHAT IS CENTRAL SAN DOING TO PREPARE FOR A POWER SHUTOFF Central San is coordinating with the following entities: • PG&E (coordinating any shutoff that will impact Central San) • Regulatory Agencies-Bay Area Air Quality Management District and San Francisco Bay Regional Water Quality Control Board • Water Agencies-Contra Costa Water District and East Bay Municipal Utility District • Contra Costa County • Cities within Central San's service area t1``CONTRA COSFA _jppw BAY AILEA i WATER DISTRICT 463 AiFLOVALrry µ{N,SCIM[Ni EBMuo DkSTRIcr WATER BOARDS WHAT IS CENTRAL SAN DOING TO PREPARE FOR A POWER SHUTOFF The following contingency plans will be activated: • Contingency and Spill Prevention Plan ""` Y• °"" - � • Documents procedures to ensure that Central San remains in,or is rapidly _ returned to, operation in the event of r- process failure or emergency incidents • Identifies possible sources of bypass, accidental discharge,and polluted drainage —T • Wastewater Pumping Station-Emergency - Response Plans S4N1r—SEWER OVERFIAW BACKUP R&PONSE kM • Sanitary Sewer Overflow&Backup Response Plan ®® i " ' a 4 7/25/2019 CONTINGENCY PLAN: MARTINEZ CAMPUS • The entire treatment plant system, the Headquarters Office Building (HOB) and Laboratory, can be powered by cogeneration, PG&E power, and the two standby emergency generators. • The Annex, Bays and Household Hazardous Waste Facility are powered by a separate PG&E electrical service and are not connected to cogeneration or the standby emergency generators. Services at these locations will be disrupted. Essential services can be moved to HOB. • The Household Hazardous Waste Facility has an existing solar array, but during a PG&E shutoff, it also shuts off as a safety requirement. 9 CONTINGENCY PLAN: MARTINEZ CAMPUS (CONTINUED) • If natural gas is available, cogeneration can produce 3.5 MW and power the entire treatment plant process, HOB, and Laboratory. • If natural gas is not available,the two 2.0 MW standby emergency generators can power the entire treatment process, HOB, and Laboratory. 5 7/25/2019 CONTINGENCY PLAN: MARTINEZ CAMPUS (CONTINUED) • If gas is not available and the furnaces are not operating, solids will be dewatered and hauled to Keller Canyon landfill. The treatment plant has three to four days of storage onsite. • If gas is not available, the two auxiliary boilers can run on diesel fuel to produce steam to run the aeration blowers. • The treatment plant has two above ground diesel tanks with a capacity of 197,000 gallons each. Typically, only one tank is filled. • Currently, the tank has about 54,000 gallons which provides enough fuel to run both generators for 7.5 days. • Central San has a contract with Hunt&Sons, Inc.,to deliver fuel on an as-needed basis and will bid for two new contracts when this contract expires in September 2019. • The Supervisory Control and Data Acquisition (SCADA)system is on an uninterruptible power supply(UPS)with a one-hour capacity. CONTINGENCY PLAN: MARTINEZ CAMPUS (CONTINUED) • The treatment plant is continuously staffed. At a minimum, one Shift Supervisor and three Plant Operators are on-site. • One Maintenance Technician from each of the Electrical, Instrumentation and Mechanical Shops are always on standby. • One Information Technology(IT)Technician is always on standby. • With advance notice, additional staff can be on standby. ..4F' d I 12 6 7/25/2019 CONTINGENCY PLAN: PUMPING STATIONS ._.. I • Central San operates 18 pumping stations. • Thirteen pumping stations have permanent °- backup generators with automatic transfer switches, including the larger pumping stations (Martinez, San Ramon, Moraga, Lower Orinda and Orinda Crossroads). • Five of the smaller pumping stations (Buchanan North, Buchanan South, Bates, Sleepy Hollow, and Wagner Ranch)have connections for a portable generator. -- • Central San has two portable generators and is in the process of renting four additional portable generators,three to be located at the smaller pumping stations and one for the Flush Kleen Pumping Station which is scheduled to receive an upgrade during the Pumping Station Upgrades Project, District Project 8436. 1 13 CONTINGENCY PLAN: PUMPING STATIONS (CONTINUED) • For a permanent solution, Central San is in the process of purchasing three portable generators that have a lead time of 23 weeks. • For added reliability, Central San has three portable by-pass pumps staged at the Orinda Crossroads, Moraga, and Martinez Pumping Stations. • Central San is in the process of evaluating two additional portable by-pass pumps for the San Ramon and Lower Orinda Pumping Stations. • Central San has two other portable pump units that can be used at the smaller pumping stations. • All generators have fuel tanks ranging in size from 80 to 8,000 gallons and run times of one to several days. 1 ' 14 7 7/25/2019 CONTINGENCY PLAN: PUMPING STATIONS (CONTINUED) • Two of the pumping station's crew trucks have portable fuel tanks(one 50-gallon tank and one 100-gallon tank). • Central San is looking into purchasing a portable trailer mounted refueling system. • All fuel tanks have been topped off. • The Supervisory Control and Data Acquisition (SCADA)System is on an uninterruptible power supply(UPS)with a 15 minute capacity. • Two Pumping Station Operators are always on standby and the Pumping Station Supervisor is also available to respond.With advance notice, additional staff can be on standby. ,5 CONTINGENCY PLAN: COLLECTION SYSTEM • The Collection System Operations Division ' (CSO)is located at 1250 Springbrook Road I in Walnut Creek. • CSO operates a main administrative �■ building, warehouse and a fleet maintenance building along with the vehicles and equipment for the cleaning, televising and repair of the sanitary sewer system. • This location also serves as the backup location for the Emergency Operations Center. • CSO has a 400-kw generator, capable of running the administrative building. The generator does not have an automatic transfer switch and must be turned on manually. ' ,6 8 7/25/2019 CONTINGENCY PLAN: COLLECTION SYSTEM (CONTINUED) • The fleet maintenance repair building is powered separately from the administrative building and is fully dependent on PG&E for power. If fleet operations are needed,work will be transferred to the lower yard at CSO or to the Martinez Campus. • Like the Household Hazardous Waste Facility, CSO has a solar array, but during a PG&E shutoff, it also shuts off as a safety requirement. I ,7 CONTINGENCY PLAN: COLLECTION SYSTEM (CONTINUED) • CSO has an above ground diesel fuel tank with a capacity of 4,000 gallons. Typically, 2,000 gallons are stored. • With 2,000 gallons,the standby generator can run continuously for approximately two weeks. • Central San has a contract with Hunt&Sons, Inc.,to deliver and fuel the cleaning and construction vehicles every other workday and the storage tank as needed. • One on-call Supervisor, one Maintenance Crew Leader, and one Maintenance Crew Member are always on standby during off hours. With advance notice, additional staff can be on standby. ' 18 9 7/25/2019 OUTREACH TO CUSTOMERS • Develop Public Messaging • Utilize Pipeline newsletter, social media posts, Central San webpage, Speakers Bureau, and other opportunities. • Inform internal staff on message. • Coordinate with Sister Agencies, County and Cities • Local water agencies will encourage customers to minimize discretionary water use. • During event—media outreach coordination. • Coordination with PG&E • Understanding their outreach, messaging, and our facilities impacted. During event—ensuring as much advanced notice as possible. l NEXT STEPS • Rent four portable generators during the fire season —$27,000. • Purchase three additional portable generators—$150,000. • Purchase a trailer mounted diesel fuel tank—$8,000-$15,000. • Procure two contractors when rebidding the fuel contract. • Evaluate the need to purchase two additional portable by-pass pumps. • Evaluate adding an automatic transfer switch to the CSO generator. • Coordinate with all stakeholders and customers. • Public Safety Power Shutoff Agency Workshop—August 8, 2019. ' 20 10 7/25/2019 QUP71ONS? COMMENTS? s 21 11