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TM <br />Un <br />FA <br />LAX <br />Los Angeles World Airports Contract No. DA-5103 <br />Stormwater Filter Inspection & Maintenance <br />I I � i III 4. �•,`. <br />Lr <br />�Imnr� 11!!ti"� <br />11M..- <br />_ <br />Contract Value: $1,750,000 / 3-years <br />Date: 2016 - Present <br />Contact: Howard Horning- Airport Maintenance Superintendent <br />Phone & Email: 424.646.7964 / hhorning@lawa.org <br />Address: 7301 World Way West, Los Angeles CA 90045 <br />Summary: Maintenance of Pump <br />Stations, Concrete Structures, <br />Clarifiers, Catch Basins, <br />Stormfilters, Hydrodynamic <br />Separators as well as Emergency <br />Response and Hazardous Waste <br />Management for both LAX and <br />Van Nuys Airports. <br />Every 55 seconds an airplane <br />lands/departs at LAX. <br />Extrapolated, that is 1,587 <br />landings/departures per day, <br />600,000 landings/departures per <br />year. That is a lot of runway rubber <br />left on the tarmac that filters <br />through storm drains. In order to <br />comply with its MS4 permit, LAX <br />requires extensive storm water <br />maintenance. Ocean Blue holds the <br />single source contract for LAX. <br />With over 3,700 Contech filters <br />utilized throughout the Airport, <br />LAX has the largest stormwater <br />filtration system Ocean Blue has <br />Contech Filter Media cleaning: LAX <br />has 11 Contech filter vaults that are <br />inspected once a year, varying in <br />size, these vaults are pressure <br />washed once a year - or sooner <br />should an illicit discharge occur. <br />And finally, each of these 3,793 <br />Contech filters undergo a media <br />replacement every 3-5 years or <br />sooner. <br />Prior to our established 2016 <br />contract, LAX Contech filter <br />maintenance was never done. Upon <br />first inspection we found significant <br />amounts of sediment on top of the <br />filters, inlet & outlet in each of the <br />systems. Ocean Blue then conducted <br />a large-scale media replacement <br />operation per the manufacturer's <br />recommendations. The waste <br />undergoes analytical testing and is <br />then transported to an appropriate <br />transportation storage disposal <br />facility (TSDF). <br />ever seen. <br />Page 21 of 29 <br />