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Consulting Services Agreement between City of San Leandro and August 3, 2023 Schaaf and Wheeler for Storm Drain Master Plan Exhibit A – Page 3 of 3 Task 4: NPDES and Operations Other ancillary aspects of storm water management include NPDES permit compliance (LID standards, C.3 treatment and hydro-modification, trash capture, etc.) and other regulatory requirements. The effective version of the Municipal Regional Stormwater Permit also includes several requirements pertaining to green infrastructure planning and implementation and incorporation of these principles into storm drain infrastructure design. While the SDMP will not go into extensive technical detail on these influential topics, their impacts will be discussed in a way that may help guide future development and improvement. Costs to operate and maintain the City system and NPDES compliance will be included in the report. Task 5: SDMP Report The SDMP report will be formatted and organized to layer the study information. It will provide a concise overview of the study findings and recommendations in simple, non-technical terms with sufficient information for the general public and City officials outside the engineering field. The report will also supply the technical community with detailed implementable information on the drainage system to execute proposed projects. Trash capture project will be incorporated into the master plan report. The current funding schedule and budgets will be included in the report along with a summary of possible funding mechanisms. Appendices supplied as a part of the SDMP will include improvement figures and detailed cost estimates. The report will be supplied electronically in PDF format. Task 6: Project Management Staff members with strong knowledge of system data will provide a thorough review of the hydrologic characteristics developed from elevation, land use, and soils data. These methods utilize approximations of runoff based on land use. Therefore, there is inherent uncertainty in the approximations. The team will utilize aerial imagery and GIS calculations to minimize the uncertainty in these parameters. Storm drain features may be field verified if necessary, to check against the existing GIS and resolve discrepancies. Once the field data are confirmed, feature attribute data will be added to the database. The modified database will be checked against the original database to ensure deletion of extraneous and redundant features. Conflicts between the two databases will be resolved with engineering/as-built drawings and field notes collected during field verification of the storm water collection system features. Designated Schaaf & Wheeler senior staff will independently review deliverables and portions of the SDMP. They will apply their knowledge of storm drainage hydrology and hydraulics to make sure the analyses and improvements are logical and reasonable. They will also scrutinize proposed improvements for constructability and cost. Schedule and Deliverables In order to streamline execution, the project manager will keep City staff updated on project status and progress on key work products. It is estimated it will take approximately 10 weeks to complete this scope of services. The project manager will schedule and participate in regular project meetings and/or status update phone calls with the City’s point of contact. Regular meetings may be supplemented with additional meetings following major project milestones, such as the system performance and deficiency technical memorandum, to ensure that the team develops a study that meets the City’s objectives. Schaaf & Wheeler will attend up to three public meetings such as facilities committees, City Council or community presentations. DocuSign Envelope ID: 8107D769-50CA-440D-916A-9BD656730E41