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EXHIBIT "C" <br />Pervious Pavement Maintenance Plan for <br />House and ADU at 37 Hyde Street <br />1 February 2021 <br />Project Address and Cross Streets : 37 Hyde St near Avondale Ave. <br />Assessor's Parcel No.: 052-063-140 <br />Property Owner: Ruthanne Smith Phone No.: 650-365-6869 <br />Designated Contact: Tim Manuel Phone No.: 650-714-7548 <br />Mailing Address:39 Hyde St., Redwood City CA 94062 <br />The property contains ONE pervious pavement area(s), located at the front, south side, and rear of the main <br />house and is approximately 2,100 square feet in area, and is shown in the attached site plan'. <br />Routine Maintenance Activities <br />Types of pervious pavement include pervious concrete, porous asphalt, pervious pavers, permeable pavers, <br />and reinforced grid paving. The principal maintenance objective is to prevent sediment buildup and clogging, <br />which reduces infiltration capacity and pollutant removal efficiency. Routine maintenance activities, and the <br />frequency at which they will be conducted, are shown in Table 1. <br />Table 1 <br />Routine Maintenance Activities for Pervious Pavement Areas <br />No. <br />Maintenance Task <br />Frequency of Task <br />1 <br />Check for sediment and debris accumulation. Prevent soil from washing or <br />Two to four times annually <br />blowing onto the pavement. Do not store sand, soil, mulch or other <br />landscaping materials on pervious pavement surfaces. <br />2 <br />Conduct preventative surface cleaning, using commercially available <br />Two to four times annually <br />regenerative air or vacuum sweepers, to remove sediment and debris. <br />3 <br />Inspect for any signs of pavement failure. Repair any surface deformations <br />Two to four times annually <br />or broken pavers. Replace missing joint filler between pavers. <br />4 <br />Check for standing water on the pavement surface within 30 minutes after a <br />Two to four times annually <br />storm event. <br />5 <br />Inspect underdrain outlets and cleanouts, preferably before the wet season. <br />Two to four times annually <br />Remove trash/debris. <br />6 <br />Remove sediment and debris accumulation on pervious pavement. <br />Two to fourtimes annually <br />7 <br />Remove weeds. Mow vegetation on reinforced grid paving (such as turf <br />As needed <br />block) as needed. <br />8 <br />Perform restorative surface cleaning with a vacuum sweeper, and/or <br />As needed <br />reconstruction of part of the pervious surface to restore surface <br />permeability as needed. Replenish aggregate in permeable paverjoints or in <br />grids as needed after restorative surface cleaning. <br />9 <br />Power washing with simultaneous vacuuming also can be used to restore <br />As needed <br />surface Infiltration to highly clogged areas of pervious concrete, porous <br />asphalt, pervious pavers or permeable pavers, but Is not recommended for <br />reinforced grid paving. <br />10 <br />Inspect pervious pavement area using the attached inspection checklist. <br />Quarterly or as needed <br />' Attached site plan must match the site plan exhibit to Maintenance Agreement. <br />Page 1 Updated 1/1/20 <br />ATTY/AGR.2021.053/Ruthann Smith (Page 10 of 12) <br />