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• <br /> Popach Short Plat—2 Lots <br /> Table V-4.5.2(22) Maintenance Standards - Permeable Pavement <br /> (continued) <br /> Recommended Fre- Condition <br /> quency a when Main- <br /> Component tenance is Action Needed (Procedures) <br /> Inspection Routine Needed <br />• Maintenance (Standards)` <br /> ShopVac or brush <br /> brooms (small areas) <br /> . Hand held pressure washer <br /> or power washer with rotat- <br /> ing brushes Follow equip- <br /> ment manufacturer <br /> guidelines for when equip- <br /> ment is most effective for <br /> cleaning permeable pave- <br /> ment. Dry weather is more <br /> effective for some equip- <br /> ment. <br /> . Review the overall per- <br /> formance of the facility <br /> (note that small clogged <br /> areas may not reduce over- <br /> all performance of facility) <br /> . Test the surface infiltration <br /> Surface is rate using ASTM C1701 as <br /> clogged: Pond- a corrective maintenance <br /> ing on surface indicator. Perform one test <br /> orwaterflows per installation, up to 2,500 <br /> A off the per- square feet. Perform an <br /> b meable pave- <br /> additional test for each addi <br /> ment surface tonal 2,500 square feet up <br /> during a rain to 15,000 square feet total. <br /> event (does Above 15,000 square feet, <br /> not infiltrate) add one test for every <br /> 10,000 square feet. <br /> . If the results indicate an <br /> infiltration rate of 10 inches <br /> per hour or less, then per- <br /> form corrective main- <br /> 2014 Stormwater Management Manual for Western Washington <br /> Volume V- Chapter 4 -Page 889 <br /> WESTERN ENGINEERS,INC. 24 PROJECT:15-1463-A <br />