Presentation on theme: "1 Porous Pavement and Model Municipal Operations Center Demonstration Project Phase II Photo Document Project County of San Diego DEPARTMENT OF GENERAL."— Presentation transcript:
1 Porous Pavement and Model Municipal Operations Center Demonstration Project Phase II Photo Document Project County of San Diego DEPARTMENT OF GENERAL SERVICES August 1, 2008 1
2 Order of Review Overview of Phase I Results Treatment Train Site Preparation Construction Post Construction Porous Pavement Site Preparation Construction Post Construction Rain Event Results to Date 2
10 Current and Proposed Porous Pavement and Treatment Train Locations 10
11 Phase II Expansion Three additional media filtration units Three additional porous paving test plots (54,000 sf) One additional porous concrete test plot Two additional porous asphalt test plots Geogrid stabilization under 1/2 of each new porous asphalt test plot 26,000 sf of roof runoff diverted to porous asphalt test beds Enhanced monitoring to evaluate current/expanded BMP effectiveness 11
51 Porous Paving Treatments Rainfall and Runoff measured during 11 events during the 2005-2006 wet season. Events ranged from 0.23 inches to 1.07 inches during Phase I monitoring. All Three Porous Paving Treatments eliminated 100 percent of the runoff and associated contaminants. 65
55 MFS Performance (Phase I) Perlite used as Media Initial data based upon only 3 events Effective at further removal of sediment Coarse sediments (>63 µ) to <1.8 mg/L. Fine sediments (<63 µ) to <14 mg/L Effective at further removal of contaminants strongly associated with particulate contaminants e.g. Total Lead concentrations reduced 27-60 percent 69
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