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EXHIBIT C TACOS EL GORDO RESTAURANT PROJECT 15420 HESPERIAN BLVD.., SAN LEANDRO MAINTENANCE PLAN FOR STORM WATER TREATMENT FACILITIES Project Description and Description of Storm Drainage and Storm Treatment Facilities: The Tacos El Gordo Restaurant (Restaurant) is a newly constructed commercial restaurant project at 15420 Hesperian Blvd., San Leandro, California. The project's storm drainage and treatment facilities are shown on Exhibits B.1 and B.2 of these documents. As part of the newly constructed project, there are several storm treatment areas, being landscaped pockets throughout the project. These storm treatment areas receive surface flow storm drainage from the impervious surfaces, parking lot, walks, and roof of this project. Storm drainage is then filtered through these areas. These storm treatment areas are landscaped and act to filter storm flows as they percolate downward through a special imported "bio -treatment soil". At the bottom of the storm treatment areas are hard drainage pipes that collect and convey "filtered" storm waters throughout the project and eventually through the curb face to Hesperian Blvd. From there, the filtered storm waters travel south approximately 110' to an existing storm inlet in Hesperian Blvd. All of this is shown in detail on Exhibits B.1 and B.2. These storm treatment facilities have been sized and designed with the latest Storm Treatment Guidelines in effect for new construction within the City of San Leandro. Maintenance of Storm Treatment Facilities: This restaurant will be owner operated. As a result of this, maintenance is tremendously simplified and established by a single source, the owner. As part of the general upkeep, and maintenance for the property , the owner will contract with various maintenance/service companies for the project's maintenance, and upkeep. The owner will contract with a landscape maintenance and street sweeping company for regular and periodic maintenance of the landscaping and storm treatment facilities. It is expected that landscape maintenance will occur 1 day per week. Landscaping within the storm treatment areas will be kept trimmed, healthy, and functioning for storm treatment purposes. Litter and debris will be picked up as needed. This weekly maintenance will insure the continued operation and functioning of the passive storm treatment facilities.