Stormwater Treatment 712 Lewelling Blvd 04262021

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Bioretention Area Maintenance Plan Date of Inspection: Property Address: 712 Lewelling Blvd, San Leandro, CA Treatment Measure No.: Table 1 Routine Maintenance Activities for Bioretention Areas No. Maintenance Task Frequency of Task 1 . Remove obstructions, debris, accumulated sediment and Monthly trash from bioretention area and dispose of properly. • Maintain vegetation and the irrigation system. Prune and weed to keep bioretention area neat and orderly in appearance. 2 a Remove and replace all dead and diseased vegetation Before wet season (August or (replace plants in kind, or per Alameda Countywide September), and Clean Water Program C.3 Technical Guidance Appendix After wet season (May) B plant list). • Till or replace soil (using biotreatment soil mix specified in C.3 Technical Guidance Appendix K) as necessary to maintain the design elevation of soil. 3 . Inspect bioretention area using the attached inspection Before wet season (inspect in checklist. August make all corrections by September 30), and After wet season (May), and Monthly during wet season (October through April) II. Prohibitions The use of pesticides and quick release fertilizers is strongly discouraged. For the purposes of stormwater treatment measure maintenance and function, it is anticipated that non -chemical controls (i.e., biological, physical, and cultural controls) will be adequate to address any pest problems. Proper and timely maintenance, as described in this plan, should serve to reduce the potential for pest establishment. To avoid the need for pesticides or quick release fertilizers, follow the principles of integrated pest management (IPM): 1. Employ non -chemical controls (biological, physical and cultural controls) before using chemicals to treat a pest problem. 2. Prune plants properly and at the appropriate time of year. 3. Provide adequate irrigation for landscape plants. Do not over water. 4. Limit fertilizer use unless soil testing indicates a deficiency. Slow -release or organic fertilizer is strongly preferred. Check with municipality for specific requirements and prohibitions. 5. Pest control should avoid harming non -target organisms, or negatively affecting air and water quality and public health. Apply chemical controls only when monitoring indicates that preventative and non -chemical methods are not keeping pests below acceptable levels. When pesticides are required, apply the least toxic and the least persistent pesticide that will provide adequate pest control. Do not apply pesticides on a prescheduled basis. 6. Sweep up spilled fertilizer and pesticides. Do not wash away or bury such spills. 7. Do not over apply pesticide. Spray only where the infestation exists. Follow the manufacturer's instructions for mixing and applying materials. 8. Only licensed, trained pesticide applicators shall apply pesticides. 9. Apply pesticides at the appropriate time to maximize their effectiveness and minimize the likelihood of discharging pesticides into runoff. With the exception of pre -emergent pesticides, avoid application if rain is expected. 10. Unwanted/unused pesticides shall be disposed as hazardous waste.