The URL can be used to link to this page

Home My WebLink About10. Approve a $1,200,000 contingency project for the Cedar Lane Sewer Modifications; transfer $600,000 from the Collection System Sewer Renovation – Phase 2, District Project 100039; and find that the project is exempt from the California Environmental Page 1 of 11 Item 10. CENTRAL SAN BOARD OF DIRECTORS POSITION PAPER MEETING DATE: DECEMBER 21, 2023 SUBJECT: APPROVE A$1,200,000 CONTINGENCY PROJECT FOR THE CEDAR LANE SEWER MODIFICATIONS; TRANSFER $600,000 FROM THE COLLECTION SYSTEM SEWER RENOVATION - PHASE 2, DISTRICT PROJECT 100039; AND FIND THAT THE PROJECT IS EXEMPT FROM THE CALIFORNIA ENVIRONMENTAL QUALITYACT (CEQA) SUBMITTED BY: INITIATING DEPARTMENT: JASON FITCH, ASSOCIATE ENGINEER ENGINEERING AND TECHNICAL SERVICES- CAPITAL PROJECTS REVIEWED BY: EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER GREG NORBY, DEPUTY GENERAL MANAGER - OPERATIONS Roger S. Bailey General Manager ISSUE The Board of Directors (Board) approval is required for any new project in an amount over$200,000 which is not identified in the Capital Improvement Budget and budget transfers in an amount over$500,000. BACKGROUND The San Francisco Bay Area experienced record storm events from late December through January of 2023, causing major damage and flooding within the Central San service area. California declared a state of emergency in response to the extreme weather in early January. On January 19, 2023, several properties in the Cedar Lane subdivision in Orinda were damaged due to a landslide from the storm events. Central San owns and operates a 6-inch public sewer within sewer easements on 6, 10, 14, and 18 Cedar Lane and 59 Cedar Terrace, which were granted by the subdivision developer in 1962, as shown in Attachment 1-Project Location Map. December 21, 2023 Regular Board Meeting Agenda Packet- Page 87 of 461 Page 2 of 11 Central San discovered that the public sewer was severely damaged during the landslide event. Staff installed temporary sewer pumps and piping for 40 Cedar Terrace and 6 Cedar Lane, which are residences upstream of the landslide. The properties of 10 and 14 Cedar Lane, also damaged during the landslide, are currently unoccupied. The property of 18 Cedar Lane is connected downstream of the landslide and currently in service with the existing public sewer. Central San staff has been coordinating with FEMA, the City of Orinda, and individual property owners to continue to provide sewer service, where feasible, and working to find a permanent sewer solution for the residences and customers. I n October 2023, the property owner of 14 Cedar Lane removed the damaged residence for safety reasons; however, the landslide still remains and nothing has been performed to address it. To date, staff is unaware of any plans from the property owner to stabilize and/or to repair the landslide. Central San staff has explored several options for providing permanent sewer service to the properties impacted by the landslide. Central San has been able to televise the public sewer, and it appears that the damaged section of the sewer is localized at the sewer lateral connection for 14 Cedar Lane. Repairs to the public sewer is not recommended due to the unsafe conditions caused by the landslide, as the easement on the hillside property is covered up to 10-feet of debris and soil. Due to the severity of the landslide, it does not appear that a private resolution will be completed soon. Staff is recommending that the properties of 6, 10, 18 Cedar Lane, and 40 Cedar Terrace be serviced by the existing public sewer on Cedar Lane and to abandon the public sewers in the easements. This will require a public sewer extension into a utility easement on Cedar Terrace and installation of privately owned and operated sewer pumping systems. Since individual pumping systems and laterals belong to the property owners, staff plans on educating and working with the owners to arrange agreements that would be paid for by the project. CEQA Staff has concluded that this project is exempt from CEQA under Central San CEQA Guidelines Section 15302 because it involves replacement of existing facilities at substantially the same locations and with the same purpose and level of activity as the facilities being replaced. Any capacity increases are for non- growth inducing, wet weather purposes. The project also is exempt under Central San CEQA Guidelines Section 15061(b)(3), since it can be seen with certainty that there is no possibility that the activity in question may have a significant effect on the environment. This certainty is based on Central San's experience with numerous sewer construction projects of this nature, the relatively short distance involved, and Central San's mitigating construction specifications. These specifications are standardized general and special conditions that are made part of the project bid documents to address environmental considerations, such as protecting trees and riparian areas, as well as compliance with applicable federal, state, county, district, municipal and local laws, ordinances, orders, and regulations. Approval of this project will establish the Board's independent finding that this project is exempt from CEQA. ALTERNATIVES/CONSIDERATIONS Staff considered and evaluated several alternatives, including the following: • Continue to serve the properties with temporary sewage pumps and wait for more information on the landslide and potential repair from 14 Cedar Lane. This is not recommended as staff has received complaints on the temporary systems and a project is needed to find a more timely permanent solution. • Repair the damaged public sewer or install a new sewer, but due to the complications and risks involved with the landslide or construction methods involved, this alternative is not recommended as December 21, 2023 Regular Board Meeting Agenda Packet- Page 88 of 461 Page 3 of 11 is considered by staff as impractical and unsafe. • Staff is recommending to fund the project through the Collection System Sewer Renovation - Phase 2 as detailed in the Financial Impacts section below; alternatively, this project could be funded by either self-insurance or the Capital Program contingency account. However, staff is recommending the Sewer Renovation Program as there is adequate funding available. FINANCIAL IMPACTS The total estimated project cost is $1,200,000 which includes planning, design, construction costs, property owner agreements, contingency, construction management, and any consultant costs as detailed in Attachment 2. This project was not included in Central San's Fiscal Year(FY) 2023-24 Budget. However, staff plans to fund this project through the Collection System Sewer Renovation— Phase 2 project, which to date has over$21,000,000 remaining and adequate funding for the new project. The Sewer Renovation Program is used to fund individual design and construction projects to renovate or replace small diameter public sewers. Cedar Lane was unplanned, however, there is adequate funding this FY($600,000) and next FY ($600,000) anticipated for the new project. Risk Management has applied for FEMA recovery funding for this project in the amount of$1,200,000 under the Public Assistance program. FEMA is awaiting Central San's more detailed cost estimates before taking further action on the application. COMMUNITY OUTREACH Central San staff has coordinated with FEMA, the City of Orinda, and individual property owners during the landslide response and provided temporary sewer service. Staff will continue to coordinate the project with the impacted customers directly as the work progresses. COMMITTEE RECOMMENDATION The Engineering and Operations Committee reviewed this matter at its meeting on December 11, 2023 and recommended approval. RECOMMENDED BOARD ACTION Staff recommends the following: 1. Approve a $1,200,000 contingency project for the Cedar Lane Sewer Modifications; 2. Transfer$600,000 from the Collection System Sewer Renovation - Phase 2, District Project 100039 account to fund the project this fiscal year; and 3. Find that the project is exempt from CEQA. Strategic Plan Tie-In GOAL ONE: Customer and Community Strategy 1—Deliver high-quality customer service, Strategy 3- Build neighborhood and industry relations GOAL TWO:Environmental Stewardship Strategy 1 -Achieve compliance in all regulations December 21, 2023 Regular Board Meeting Agenda Packet- Page 89 of 461 Page 4 of 11 GOAL FIVE: Safety and Security Strategy 2- Protect personnel and assets from threats and emergencies GOAL SIX.Infrastructure Reliability Strategy 1 - Manage assets optimally ATTACHMENTS: 1. Project Location Map 2. Preconstruction Estimate 3. Presentation December 21, 2023 Regular Board Meeting Agenda Packet- Page 90 of 461 Page 5 of 11 Cedar Lane Sewer Modifications Map Date:11/28/2023 Donald Of Lafayette Orinda 0 Detail Area Moraga 25 Cedar Ln i 11 Cedar Ln 17 Cedar Ln 21 Cedar Ln i i I Cedar Ln 6 Cedar Ln 1 1 1 1 1 1 10 Cedar Ln 40 Cedar Ter 1 1 1 ► /73C1-RI29 26 Cedar Ln 1 1 14 Cedar Ln 22 Cedar Ln 1 1 1 1 18 Cedar Ln C� co 46CedarTer CD \\ 73C1-M28 \ \ \ \ 73C2-K13 59 Cedar Ter it 0 Q Manhole 40 Ardor Dr • Rodding Inlet l — Gravity Main — Access Easement Mains to be Modified X Tax Parcel U a Note: ,/fir 0 100 Map Displayed in North American Datum of 1983 Attachment c Central San data as of November,2023. NI FeetCalifornia State Plane,Zone III FIPS 0403,US Feet 1 December 21, 2023 Regular Board Meeting Agenda Packet- Page 91 of 461 ATTACHMENT 2 CEDAR LANE SEWER MODIFICATIONS DISTRICT PROJECT TBD PRECONSTRUCTION ESTIMATE % Of Item Description AmountfPage 6 of 11 Construction No. Cost 1. CONSTRUCTION a. Early Construction Estimate $800,000 b. 30% Contingency $230,000 c. Permits $10,000 SUBTOTAL - CONSTRUCTION COST $1,040,000 100% 2. CONSTRUCTION MANAGEMENT a. District Forces - Construction Management (Engineering, Survey) $30,000 - Public Relations/Right-of-Way $10,000 - Operations (CSO) $5,000 b. Consultants - Inspection $30,000 - Material Testing/Geotech/Arborist/Others $10,000 SUBTOTAL - CONSTRUCTION MANAGEMENT $85,000 8% 3. PREBID EXPENDITURES a. Engineering (Design, Survey, Right-of-Way, Drafting) $75,000 SUBTOTAL - PREBID EXPENDITURES $75,000 7% 4. TOTAL ESTIMATED PROJECT COST $1,200,000 December 21, 2023 Regular Board Meeting Agenda Packet- Page 92 of 461 Page 7 of 11 Attachment 3 December 21,2023 Donald SH �arayette CEDAR LANE SEWER Area MODIFICATIONS ° a 2StXdarn „CedW Ln 17 Cedar Ln 21 Cedar Ln „ i cad Ln e radar Ln Board of Directors Meeting veparrer 3CI-PI20 + 28omar Ln � 1a ce°er Ln ? T1 camr Ln a cedar ln Edgar J.Lopez,P.E. Capital Projects Division Manager 7K1-M28 , Sasha Mestetsky,P.E. 73C2-M133 Senior Engineer 59Cedarrr I Background 11 Cedr Ln 17 Cedr Ln 21 Ceder Ln rrr II r r r _ Central San has sewers within i BCed.r Ln Cedar Lam easements along several Cedar In properties on Cedar Lane. ae Cedz,1r, 3Cl-RI29 26 Cedar 74 Cedar Ln 22 Cedar Ln This 6" cast iron sewer main was installed in 1962 and serves five � 73C1-M28 properties. 46Ced.,T. �11 / The easement is at a lower elevation from the houses and 3cx 3 roadway. 59 Cedar Ter / t December 21, 2023 Regular Board Meeting Agenda Packet- Page 93 of 461 1 Page 8 of 11 > Background Record storm events occurred late �� December through January of 2023. r< Heavy rain and the Bay Area experienced between 10"-20" of rainfall. Cyclone or atmospheric river events. I , r California and the governor declared a state of emergency in early January. v, Landslide On January 19, 2023, a landslide occurred at 10 and 14 Cedar Lane in Orinda. The landslide damaged the 6"sewer main at the side sewer connection and deposited soil and debris above the easement. A ' The landslide disrupted service for four properties. , The landslide left two properties unoccupied. ,'- - 41 December 21, 2023 Regular Board Meeting Agenda Packet- Page 94 of 461 2 Page 9 of 11 CSO Response CSO installed temporary lateral pumps for the two occupied properties. t CSO continues to maintain these pumping , r.. systems. :_; , j There is one property downstream of the , `: 1; damaged main and is still serviced by gravity. �,�•r A 1 �. 91' CWw Current Status „C�aLn ili ,? � Z' `n •10 and 14 Cedar Lane are 6 Cedar Ln Cedar Ln unoccupied. 10 Cedar Ln i 6 Cedar Lane and 40 Cedar d°Cedar Tar r Cl-RI29 14 Cedar Ln f 72 Cedar Ln 7a Cedar Terrace are on temporary ', ', I' 18 Cedar Ln pumping systems. m /I, -� 3C1-M28 18 Cedar Lane is still of existing /BCedaiTer gravity system. �� 3 � `• 59 Cedar Ter -Temporary Sewage pumps j' \ / -Out of service public sewer 1 December 21, 2023 Regular Board Meeting Agenda Packet- Page 95 of 461 3 Page 10 of 11 Engineeringes t Central San has been coordinating with FEMA and --. :,d . others. -��-. - ei The damaged residence at 14 Cedar Lane was - removed by the property owner by October 2023 ' n Soil and debris along the sewer easement were not removed. Staff has preliminary evaluated multiple options for supplying permanent service for the properties. Repair or replacement of the sewer in the easement is not recommended for safety concerns at this time. Staff recommends aj project to further evaluate and p " provide permanent service to the impacted customers. z< Recommended Board Action Staff recommends the following: Approve a $1,200,000 contingency project for the Cedar Lane Sewer Modifications; Transfer $600,000 from the Collection System Sewer Renovation - Phase 2, District Project 100039 account to fund the project this fiscal year; and Find that the project is exempt from CEQA. kfthmm, December 21, 2023 Regular Board Meeting Agenda Packet- Page 96 of 461 4 Page 11 of 11 Questions? 4� W December 21, 2023 Regular Board Meeting Agenda Packet- Page 97 of 461 5