Beach Report Card - California Coastkeeper Alliance

ability of sand to filter and infiltrate, thereby reducingmaintenance and energy costs for theproject. The project was built to a large enoughscale to handle year-round dry weather runoff,but the county has yet to approve the projectfor use outside the AB411 time period.Sewage Spill SummaryThere were five sewage spills to receiving watersin Los Angeles County that resulted inbeach closures this past year. The largest spill(~500,000 gallons) was due to debris blockagebackup in a main sewer line in Culver City andresulted in a closure of four monitoring locationsfor two days (Sept. 29-Oct. 1, 2010). Amajor sewer overflow (~250,000 gallons), dueto massive rainfall in Studio City, prompted theclosure of nine monitoring locations in LongBeach for approximately nine days in late March2011.Another significant sewage spill (~50,000 gallons)in early November 2010, due to a brokensewer line in Burbank, drained into the LosAngeles River and caused the closure of ninemonitoring locations from 3rd Place to 72ndPlace in Long Beach. Finally, two spills (~300and ~17,000 gallons) occurred on Catalina Islandin August 2010, due to the wastewatertreatment plant’s pump failure, resulting in closuresat Avalon Beach.FIGURE 4-10Percentage of Grades by Time Periodfor Southern California542 4AB411: April-October (77 locations)633136WINTER-DRY (72 locations)434867683SouthernCaliforniaBeachesCombined grades ofSanta Barbara CountyVentura CountyLos Angeles CountyOrange CountySan Diego CountyDRY WEATHER (72 locations)1410192531WET WEATHER (72 locations)KEY:Numbers in BOLD indicate percentages42