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Consulting Services Agreement between City of San Leandro and Exhibit A GPA Consulting for Environmental Services for Lake Chabot Road Erosion Repairs Page 1 of 11 EXHIBIT A SCOPE OF SERVICES Project Description Lake Chabot Road is a two-lane highway located along the southwestern slope of San Leandro Creek and immediately downstream of Lake Chabot Dam. The roadway was constructed by cutting into the hillside upslope and filling on top of the hillside downslope. During the January 2023 storms two separate erosion slides occurred, namely site A and site B, making the roadway unsafe for vehicular traffic. At site A, located 200' east of Chabot Terrace, approximately 80 linear feet of embankment below the road eroded and slid downhill undermining the pavement edge of the westbound lane. Repairs are anticipated to include construction of a drilled pier, retaining structure on the downslope, backfill and repaving of the westbound lane. At site B, located 1600' east of Chabot Terrace, an approximate 100 linear feet section of upslope embankment slid, depositing debris and rock slope protection (RSP) material onto the roadway below and exposing above dwellings to structural vulnerability. Repairs are anticipated to include construction of a retaining wall at the toe of the slope, re- grading of the upslope hillside with installation of salvaged and new RSP. The City was awarded grant funding from the Federal Highway Administration to repair the roadway to support vehicular traffic and return it to its pre-storm service condition. The grant will be administered locally through Caltrans. Scope of Services This federally funded project will require environmental documentation pursuant to the National Environmental Policy Act (NEPA) with Caltrans as the NEPA lead agency. The Consultant shall guide the project through the environmental documentation process to achieve NEPA approval. All technical studies required for NEPA approval shall be prepared in accordance with the Caltrans’ Standard Environmental Reference (SER) and Local Assistance Procedure Manual (LAPM). As an optional task, the Consultant will assist the City with meeting its Lead Agency requirements under California Environmental Quality Act (CEQA). The Consultant shall complete the work tasks and sub-tasks as listed below. Task 1 – Project Description • From review of relevant available data, a detailed project description shall be developed, including project components, purpose and needs, environmental study limits (ESL) and timing of construction. The project description will be appropriate for use in all technical studies and environmental documentation and will include maps of the regional area and project area. • Support will be provided to the City with grant applications and procedures. Task 1 Deliverables: Detailed Project Description; ESL map Task 2 – Preliminary Environmental Study • Following Task 1, a draft Preliminary Environmental Study (PES) Form will be prepared. • Attendance at a Caltrans field or virtual review of the project site shall be required. Docusign Envelope ID: 78E72B1A-FA71-4376-9F02-D7D222FBE69F