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Bioretention Area Maintenance Plan Date of Inspect <br />Property Address: 437 Iris St. Redwood City, CA Treatment Measure I <br />Table 1 <br />Routine Maintenance Activities for Bioretention Areas <br />7 Inspect bioretention area using the attached inspection Monthly, or after large storm events, <br />checklist and after removal of accumulated <br />debris or material <br />II. Prohibitions <br />The use of pesticides and quick release fertilizers shall be minimized, and the principles of <br />integrated pest management (IPM) followed: <br />1. Employ non -chemical controls (biological, physical and cultural controls) before using <br />chemicals to treat a pest problem. <br />2. Prune plants properly and at the appropriate time of year. <br />3. Provide adequate irrigation for landscape plants. Do not over water. <br />4. Limit fertilizer use unless soil testing indicates a deficiency. Slow-release or organic <br />fertilizer is preferable. Check with municipality for specific requirements. <br />5. Pest control should avoid harming non -target organisms, or negatively affecting air and <br />water quality and public health. Apply chemical controls only when monitoring indicates <br />that preventative and non -chemical methods are not keeping pests below acceptable <br />levels. When pesticides are required, apply the least toxic and the least persistent <br />pesticide that will provide adequate pest control. Do not apply pesticides on a <br />prescheduled basis. <br />6. Sweep up spilled fertilizer and pesticides. Do not wash away or bury such spills. <br />7. Do not over apply pesticide. Spray only where the infestation exists. Follow the <br />manufacturer's instructions for mixing and applying materials. <br />8. Only licensed, trained pesticide applicators shall apply pesticides. <br />9. Apply pesticides at the appropriate time to maximize their effectiveness and minimize <br />the likelihood of discharging pesticides into runoff. With the exception of pre -emergent <br />pesticides, avoid application if rain is expected. <br />10. Unwanted/unused pesticides shall be disposed as hazardous waste. <br />Standing water shall not remain in the treatment measures for more than five days, to prevent <br />mosquito generation. Should any mosquito issues arise, contact the San Mateo County Mosquito <br />Abatement District (SMCMAD), as needed for assistance. Mosquito larvicides shall be applied <br />only when absolutely necessary, as indicated by the SMCMAD, and then only by a licensed <br />professional or contractor. Contact information for SMCMAD is provided below. <br />III. Mosquito Abatement Contact Information <br />San Mateo County Mosquito Abatement District <br />1351 Rollins Road <br />Burlingame,CA 94010 <br />PH:(650) 344-8592 <br />FAX: (650) 344-3843 <br />Email: info@srncmad.org <br />IV. Inspections <br />The attached Bioretention Area Inspection and Maintenance Checklist shall be used to <br />conduct inspections monthly (or as needed), identify needed maintenance, and record <br />maintenance that is conducted. <br />Page 2 <br />hll,e:udew, livr ncu94RN96cpellfLlxcumanb N11umiF Ci, ilgT�jttu. 1x,1811 F, -,l AgLNH r N' -Ili' Sinvbk,duwd t'n)411 Im 111-ILnlilmninn Plnnlvr Aug :: e,v <br />ATTY/AGR.2023,001/Sara Seyedin (437 Iris Street) (Page 14 of 15) <br />