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Home My WebLink About11.a. General Manager Written Announcements Page 1 of 5 Item 11.a. CENTRALSAN jdf A- hom CENTRAL CONTRA COSTA SANITARY DISTRICT November 4, 2021 TO: HONORABLE BOARD OF DIRECTORS FROM: ROGER S. BAILEY, GENERAL MANAGER SUBJECT: ANNOUNCEMENTS - NOVEMBER 4, 2021 Attached are the announcements for the above meeting. ATTACHMENTS: 1. General Manager Written Announcements 2. Energy Usage - September 2021 November 4, 2021 Regular Board Meeting Agenda Packet- Page 288 of 324 Page 2 of 5 Attachment 1 Board Meeting of November 4, 2021 General Manager Written Announcements DEVELOPMENT SERVICES 1) Annual Notices Sent to Reimbursement Account Holders Central San provides a reimbursement program so that costs of mainline sewer extensions paid for by one or more property owners can be shared among all benefitting property owners who connect directly to the project sewer. Each year, in accordance with District Code, annual notices are mailed to the holders of reimbursement accounts (installers). This year, a total of 71 annual notices were mailed on October 15, 2021. Installers were reminded of the need to keep Central San informed of any change of address. Installers were asked to update their information and return the notice to Central San in the prepaid envelopes provided. Having current address information will enable staff to notify Installers when reimbursement fees are collected on their behalf. Installers were also informed of the expiration dates of their accounts. Staff will continue to make reasonable efforts to locate installers for whom we do not have current contact information. DIVISION-BASED ELECTIONS 2) Central San to Conduct Additional Public Hearing regarding the Redistricting of Director Divisions Central San is in the process of reviewing and adjusting the boundaries as required with the latest 2020 Census data. Two public hearings were held thus far; October 4 and October 25. At the October 25 public hearing, three maps were reviewed for consideration and comment. The demographer was provided comments and a third public hearing was scheduled to continue boundary map reviews and provide interested parties further opportunity to comment. The next public hearing will be held during the regularly scheduled Board Meeting at 2:30 p.m. in the Multi-Purpose Room at Central San, 5019 Imhoff Place in Martinez on: Thursday, November 18, 2021 Public Hearing to begin at approximately 4:30 p.m. A District mapping tool, along with more information about this change, can be found on the District website at centralsan.org/elections. November 4, 2021 Regular Board Meeting Agenda Packet- Page 289 of 324 Page 3 of 5 Written Announcements November 4, 2021 Page 2 of 3 Members of the public have various ways to participate and/or provide comment: 1. Send an email before or during the meeting to the Secretary of the District, at sod@centralsan.org. 2. Attend the meeting in person in Central San's Multi-Purpose Room; face coverings are required. 3. Observe the meeting online as all meetings will be livestreamed at centralsan.org. The livestream does not offer the option to comment. To make comment during the livestream, Options 1 or 4.a. are recommended. 4. Join the meeting online. A request to join the meeting as a virtual participant should be directed the Secretary of the District at sod@centralsan.org to receive the virtual meeting link. Residents are invited to call 925-229-7303 or send an email to sod@centralsan.org with any questions. EMERGENCY RESPONSE TO STORM EVENT 3) Efficient and Prompt Staff Response at Pumping Stations due to Recent Storm Event On Sunday October 24, 2021, the Bay Area received a torrential rain event. This was the fourth largest storm in recorded history dating back to the Gold Rush days. Central San staff from Operations, Collection System, and Engineering, as well as contractor personnel, responded to numerous pumping station emergencies. This included Central San's two largest pumping stations, Orinda Crossroads (located at Theatre Square) and Moraga. Ironically, both Pumping Stations (PS) are currently going through major renovations to improve capacity and reliability. Due to the record rainfall, the Orinda and Moraga PS had to handle peak flows of up to 16 MGD (million gallons per day). The magnitude of the peak flows is comparable to the total flow typically received by the wastewater treatment plant from all sources during low flow conditions. Prior to the storm, both stations were receiving flows under 1 .5 MGD. Just as this peak flow reached the Orinda Crossroads PS it lost PG&E power, which has not occurred during a heavy rain event in over twenty years. Immediately, the temporary backup systems responded and within two hours started to be overwhelmed while the collection system and wet-well levels rose to near overflow elevations. However, the District team battled for over six hours during the peak of the storm to engage all measures to prevent a major overflow to the nearby reservoir. Such measures included emergency operation of the portable diesel-powered pump, and creating a "bucket brigade" November 4, 2021 Regular Board Meeting Agenda Packet- Page 290 of 324 Page 4 of 5 Written Announcements November 4, 2021 Page 3 of 3 using several large vacuum trucks to take turns pumping down the wet-well and transporting storm water and sewage out of the pumped area and back into the gravity collection system. Finally, the response team rented an additional 200 kva portable generator that was quickly set up and they re-wired the station. This added generator allowed staff to run an additional pump and increased pumping capacity to adequately handle the peak flow and returned the station back to normal levels hours before PG&E power was restored. Throughout the night, staff worked to restore all systems, including automated controls and instrumentation. Unfortunately, approximately 2,500 gallons left the collection system or overflowed. Due to the efforts by the District team, the overflow was limited to 38 minutes. Fortunately, no damage to private or public property occurred during the overflow. During the event, staff kept all interested and impacted parties updated, including East Bay Municipal Utility District (EBMUD) and PG&E. Repairs are on-going and the construction team at Orinda and Moraga PS are working expediently to complete the project. The efforts, response, and hard work by the Central San team during this event to prevent a major sewage overflow was exceptional and commendable. Seven other pumping stations, including Lower Orinda and the three Martinez stations, also lost PG&E power during the storm. All affected pump stations had standby backup power sources. Considering Orinda Crossroads and Moraga PS, and the seven other locations, power outages occurred at almost half of the District's pumping stations ranging from 30 minutes to six hours. Operations responded to each station and verified that all emergency backup systems responded with no incidents to report. ENERGY CONSUMPTION 4) Third Quarter Update on Central San's Energy Usage Central San actively tracks greenhouse (GHG) emissions to optimize the use of energy at its facilities in the most cost-effective and environmentally responsible manner. The attached energy dashboard contains a breakdown of Central San's energy usage for the month of September 2021 along with a comparison of the energy used during the third quarter of the calendar year. The chart shows the cost breakdown of Pacific Gas and Electric (PG&E) and Marin Clean Energy (MCE) electricity. November 4, 2021 Regular Board Meeting Agenda Packet- Page 291 of 324 CCCSD September 2021 Energy Usage Page5of5 Attachment 2 HHWCF(Solar) Treatment Plant Monthly Total Energy Cost: $414,708 HHWCF(Gas and $731 87%of Total$ POD Demand Charge Electricity)$37 0% 0% Misc(Gas and ( E)$ OPOD Electricity466/MG Treated Electricity) Import(MCE)$- S2,123 °% 2,220 kWh/MG Treated 1% PG&E Charges (trans.+dist.+etc. CSO Solar, minus Reser,& $4,228,48% Sew.Charges) $22,093 *VehideCSO O Facility 6% of Total$ CSO Electricity $1,775,20% CSO Gas, 1,959,22% POD Landfill Gas hicle $47,731 BayElectricity, Bay Gas,$12, 13% $887,10% 0% POD Natural Gas I Pump Stations : r 11%of Total$ Moraga,$9,380, POD Natural Gas San Ramon,$14,400, 21% Transmission 32% :r rr Orinda Crossroads, 12 Other Pump Stations, $5,910,13% $1,890,4% Concord Industrial, $1,570,3% Lower Orinda, Fairview Lift Station, $5,672,12% $1,556,3% Maltby,$1,954,4% Martinez,S3,482,8% Operating Cost of CCCSD by Month TP Electricity Source in kWh TP MM BTU of Gas Consumed $450,000 2,50o so $ala,7os $400,000 66 027 5364,529 $386,800 as $350,000 2,000 40 m s 35 $300,000 i -o l,Soo f 30 $250,000 v 25 $200,000 r 1,000 r 20 $150,000 ~ 15 $100,000 500 30 $50,000 5 $0 0 0 Jun-21 Jul-21 Aug-21 Sep-21 Jun-21 Jul-21 Aug-21 Sep-21 Jun-21 Jul-21 Aug-21 Sep-21 ■PG&E Charges ■POD Resew.&Sew.Charges ■Natural Gas ■Landfill Gas ■VICE Demand Charge ■Other Energy Charges ■Cogen ■Standby Power ■PG&E ■POD Landfill Gas ■Natural Gas Delivery ■POD Natural Gas TP Electricity by Source in kWh TP MMBTU of Gas Consumed TP Energy by Source in kWh 30 600 100 282 6.93 2.05 90 25 500 8o 20 ° 400 70 1.01 r 60 3 1s c 300 3 so s _°a0 — — — 10 c 200 30 29.27—29.58 29.10—28.26— 5 100 ~ 20 — — — —19.72— It 10 0 0 ° 2017 2018 2019 2020 2021 2017 2018 2019 2020 2021 2017 2018 2019 2020 2021 Year Year Year ■Aux Boilers WHB Steam ■Cogen Steam ■Cogen ■Standby Power ■PG&E ■Natural Gas ■Landfill Gas ■Cogen Electrical ■Standby Power ■PG&E This month CCCSD produced and purchased electricity at an average rate of ,0,1370 /kWh(including maintenance) Anthropogenic GHG Emissions Renewable Energy Landfill Gas Compared to $0,2099 /kWh if exclusively from PG&E MT CO2e Profile 7,295 MMBtu 5% zs000 1 Recovered Waste Heat Generation breaks even with PG&E at $11,$6 /MMBTU 2,603 MMBtu 20000 8 6% Solar A* 16 MMBtu eq. Natural gas was purchased ls000 0.16% $4,88 /MMBTU � MCE Renewables at a rate of 10000 156 MMBtu eq. Total Non-Renewable 0.33% Natural gas transmission 5000 37,528 MMBtu cost $2.16 /MMBTU 79% ° CCCSD produces steam at November 4, 2021 Regular Board Meeting Agenda Packet- Page 292 of n4erage rate of $0.0044 /lb steam