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SAN MATEO COUNTYWIDE WATER POLLUTION PREVENTION PROGRAM <br /> Maintenance <br /> A maintenance plan shall be provided. <br /> Standards for Ongoing Maintenance and Upkeep: <br /> • Keep landscaped areas well maintained. <br /> • Prevent soil from washing onto the pavement. Pervious pavement surface shall be <br /> inspected, and if needed, vacuum cleaned using commercially available sweeping <br /> machines at following times: <br /> • End of winter (April) <br /> • After autumn leaf-fall (November) <br /> la Inspect outlets yearly, preferably before the wet season. Remove accumulated <br /> trash/debris. <br /> • When vacuum cleaning, inspect pervious paving for any signs of hydraulic failure. <br /> As needed maintenance: <br /> • If routine cleaning does not restore infiltration rates, then reconstruction of part of <br /> the pervious surface may be required. <br /> • The surface area affected by hydraulic failure should be lifted, if possible, for <br /> inspection of the internal materials to identify the location and extent of blockage. <br /> • Lift and replace surface materials as needed to restore infiltration. <br /> Geotextiles may need complete replacement. <br /> • Sub-surface layers may need cleaning and replacing. <br /> • Removed silts may need to be disposed of as controlled waste. <br /> gfecigyortisb Pervious Concrete <br /> r ;� 4, <br /> aarti,cv o J sV t Typ. 5 to 8 in. thick <br /> m '65, ®°b o to <br /> KO 0 <br /> 09 04 <br /> cm mo <br /> mo am . <br /> KO. <br /> g9 <br /> ® oo® J 0 ^. <br /> s m8_ Typ. No. 57 stone reservoir — <br /> or ate oe thickness varies with design — <br /> o - a � , cover reservoir sides with <br /> es n o r ` ir.e∎ e geotextile <br /> Optional geotextile ao0`® " ® ' i '�` g <br /> on bottom of reservoir III=111 =III=111=111=111 <br /> —1 11= I I I1=1 I I-I I�I=1 <br /> Soil subgrade <br /> Figure 6-26. Typical Pervious Concrete Pavement (Source: Santa Clara Valley Urban Runoff <br /> Pollution Prevention Program) <br /> 6-32 CHAPTER 6 <br /> ATTY/AGR.2016.231/849 Veterans RWC, LLC - STMMA <br />