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San Francisco Public Utilities Commission

264 bytes added, 23:01, 17 July 2010
SW: →‎Disposal of Sewage Sludge: correct information I put in here incorrectly before
== Disposal of Sewage Sludge ==
San Francisco produces 82,000 tons of sewage sludge annually. According to a public fact sheet, SFPUC disposed of its sludge as follows in 2008:<ref>[http://www.sfwater.org/Files/FactSheets/BiosolidsWeb.pdf "Biosolids Fact Sheet," SFWater.org]</ref>
* 56% goes to the Hay Road Landfill in Vacaville, CA
* 28% is applied to land as fertilizer in Solano County, CA
* 1% went to the composting program to be given away to gardeners
A 2009 document from the [[Bay Area Clean Water Agencies]] ([[BACWA]])<ref>[http://bayareabiosolids.com/yahoo_site_admin/assets/docs/BACWA_BABiosolidsMgmnt.333131007.pdf "Bay Area Biosolids Management"]</ref> estimated that San Francisco the entire Bay Area produced 158,000 dry metric tons of sewage sludge annually, a number that would swell to 189,000 dry metric tons by 2010. This document breaks down the disposal of the Bay Area's 2007 sewage sludge as follows:
* 52% is used as Alternate Daily Cover in landfills
* 19% is applied to land as fertilizer
* <1% San Mateo
The A 2009 document from the [[Bay Area Clean Water Agencies]] ([[BACWA]])<ref>[http://bayareabiosolids.com/yahoo_site_admin/assets/docs/BACWA_BABiosolidsMgmnt.333131007.pdf "Bay Area Biosolids Management"]</ref> notes that a survey of landfills within 200 miles finds insufficient capacity to dispose of all of the Bay Area's sludge as "Alternate Daily Cover." Also, as of the document's publication in 2009, 21 of California's 58 counties restrict land application of [[Class B Biosolids]]. The document identifies as a strategy mounting PR efforts to convince the public of the safety of sewage sludge:
"Overarching each of the challenges just listed are the public's perceptions about biosolids. These perceptions impact to some degree
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