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Pervious Pavement Maintenanoe Plan for Roof Alteration and Modernization - Heron Court Cooperative, Inc. Project Address and Cross Streets Assessors Parcel No-: Propert+Owner- [[_= insert Date A) Phone No._ Designated Contact: Phone No.. Mailing Address: The property contains 3 pervious pavement area(s), located and sized as described below and as shown in the attached site plans. of those pervious pavement areas, D are each 3,000 sq.ft. or more in area. Total square feet of pervious pavement on the site 3,888. Square feet of area • Pervious Pavement Area No. 1 is located at parking lot no. (3) and has 2,268 square feet (10 un -covered parking stal ls)- • Perviou_ Pavement Area No. 2 is on the roadway between parking lots no -s 1 and 5 has 1,296 square feet (8 un -covered parking stalls)_ Pervious Pavement Area No. 3 is located at parking lot no_ (1) and has 324 square feet (2 un -covered parking stalls) - I. Routine Maintenance Activities Types of pervious pavement include pervious concrete, porous asphalt, pervious pavers, permeable pavers, and reinforced grid paving. The principal maintenance objective is to prevent sediment buildup and clogging, which reduces infiltration capacity and pollutant removal efficiency. Routine maintenance activities, and the frequency at which they will be conducted, are shown in Table 1. Table i Routine Maintenance Activities for Pere.2us Pavement Areas 610_ Maintenance Task Frequency or'+ask 1 checkforsediment a nd debris accumulation. Prevent soil from washing or Two to four times annually blowing onto the pavement. Do not store sand. sol, mulch or other landscaping materials on pervious pavementsurfaces. 2 Conduct preventative surface cleaning, using commercially available Two to faurtimes annually regent ravve air or vacuum _weepers, to remove sediment a nd debris - 3 Inspect for any signs of pavement failure. Repair any surface deformations Two to four tomes annualiy or broken pavers_ Replace missing point filler between pavers. 4 shed for sanding water an the pavement surface within 30 minutes after a Two tafour tures annually storm event 5 Inspect underdmin outlets and cleanouts, preferably oefore the wetseason. Two to fourtimes annually Remove trash/debris. a Remave sediment and debris accumulation on pervious pavement. TWO to four times annually 7 Remove weeds. Mow vegetation on reinforced grid paving [such as turf As needed block} as needed. a Perform restorative surface cleaning with a vacuum sweeper, anWor A•, needed reconstruction of part of the pervivrus surface to restore surface permeability as needed. Replenish aggregate in permeable paverjoints or in grids as needed after restorative surface cleaning. REV: 08-12-20 PR Page 4 ATTY/AGR.2020.136/Heron Court Cooperative Inc. (Page 14 of 16)