{"id":31065,"date":"2026-08-31T15:19:15","date_gmt":"2026-08-31T19:19:15","guid":{"rendered":"https:\/\/ilsr.org\/?post_type=article&#038;p=31065"},"modified":"2026-08-31T15:19:15","modified_gmt":"2026-08-31T19:19:15","slug":"reducing-contamination-at-community-composting-sites","status":"publish","type":"article","link":"https:\/\/ilsr.org\/es\/article\/composting-for-community\/reducing-contamination-at-community-composting-sites","title":{"rendered":"Reducing Contamination at Community Composting Sites"},"template":"","class_list":["post-31065","article","type-article","status-publish","has-post-thumbnail","hentry","article_type-fact-sheets-guides","article_type-presentations-events","initiatives-composting-for-community","topics-agriculture","topics-climate-change","topics-community-composting","topics-on-farm-composting","topics-zero-waste","impact_areas-climate-and-environmental-justice","impact_areas-food-security","authors-linda-bilsens-brolis"],"acf":{"details":{"featured_image":32694,"background_color":"tan","article_type":[29,31],"initiative":15,"display_event_fields":false,"display_case_study_fields":false,"start_date":null,"end_date":null,"start_time":null,"end_time":null,"time_zone":"America\/New_York","virtual_event":false,"location":"","locality":"","state":"","topics":[50,62,99,121,42],"impact_areas":[16,18],"abstract":"ILSR\u2019s Reducing Contamination at Community Composting Sites is a virtual course for community composters looking to create the highest-quality compost from collected food scraps.","authors_tax":[635]},"sidebar":{"title":"\u00cdndice"},"page_layout":[{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":null,"component_wysiwyg":{"content":"Contamination is a major challenge for composting at all scales, often requiring significant investments of labor, time, and money to manage. This free course introduces best practices for reducing contamination at community-based sites processing food scraps to create high-quality compost, including for food production.\r\n\r\n<strong>The Reducing Contamination at Community Composting Sites course and associated materials cover:<\/strong>\r\n<ul>\r\n \t<li><b>Common contaminants and potential sources<\/b><\/li>\r\n \t<li><b>Solutions for avoiding and managing contamination<\/b><\/li>\r\n \t<li><b>Developing a contamination management plan<\/b><\/li>\r\n \t<li><b>Conducting a contamination audit<\/b><\/li>\r\n<\/ul>\r\n<span style=\"font-weight: 400;\">The course consists of two 30-minute video modules that introduce key concepts and share models from composting sites and programs around the U.S.\u00a0 Each module is followed by a knowledge check and a certificate of completion is provided upon passing a final exam. The course is accompanied by two <a href=\"https:\/\/ilsr.org\/es\/article\/composting-for-community\/composting-learning-activities\/\" target=\"_blank\" rel=\"noopener\">Composting Site Operator Learning Activities<\/a> to deepen understanding and guide hands-on application.\u00a0<\/span>\r\n<h4><b>Who\u2019s this course for?<\/b><\/h4>\r\n<span style=\"font-weight: 400;\">The course is intended for community composters turning food scraps into high-quality compost, including for food production. It will also be relevant to anyone producing compost above the backyard scale and for programs that involve or support community composting. The <a href=\"https:\/\/ilsr.org\/es\/article\/composting-for-community\/composting-learning-activities\/\" target=\"_blank\" rel=\"noopener\">Composting Site Operator Learning Activities<\/a> are intended for composting site operators or for those managing composting programs.<\/span>\r\n\r\n<hr \/>\r\n\r\n<h4><b>Course Enrollment and Access<\/b><\/h4>\r\n<span style=\"font-weight: 400;\">This free course is hosted on Circle.so. Once you have completed the <\/span><a href=\"https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSfuB783XgF8Prft0HvFprn_23Y5C-I2IoJUkVI8QBOp7UBpBA\/viewform?usp=dialog\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">course intake form<\/span><\/a><span style=\"font-weight: 400;\">, you will receive an automatic email with an invitation link. Use this link to create a free Circle profile or login to an existing profile, you will then be redirected to the course. Keep track of your password, as you will need it to return to the course.<\/span>\r\n<p style=\"text-align: center;\"><a class=\"btn :version-1 :size-1 :full-width-false\" role=\"button\" href=\"https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSfuB783XgF8Prft0HvFprn_23Y5C-I2IoJUkVI8QBOp7UBpBA\/viewform?usp=dialog\" target=\"_blank\" rel=\"noopener\">Enroll Here<\/a><\/p>\r\n\r\n\r\n<hr \/>\r\n\r\n<h4>Composting Site Operator Learning Activities<\/h4>","":null,"settings":""}},{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":null,"component_wysiwyg":{"content":"The course is accompanied by two Composting Site Operator Learning Activities:\r\n\r\n<span style=\"font-weight: 400;\"><img class=\"wp-image-31162 size-medium alignleft\" src=\"https:\/\/ilsr.org\/wp-content\/uploads\/2025\/08\/Screenshot-2026-06-22-at-1.35.45-PM-231x300.png\" alt=\"\" width=\"231\" height=\"300\" \/><a href=\"https:\/\/share.hsforms.com\/2lpI3t3tiQeCB96gkBDkbYAd2g9c\" target=\"_blank\" rel=\"noopener\"><strong>Developing a Contamination Management Plan<\/strong><\/a><\/span>\r\n\r\nGuides users in thinking through the many ways that contamination can be reduced or managed throughout the flow of composting materials, from the collection of feedstocks to the testing of finished compost.","":null,"settings":""}},{"acf_fc_layout":"layout_wysiwyg","_acfe_flexible_toggle":null,"component_wysiwyg":{"content":"<span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><img class=\"wp-image-31161 size-medium alignleft\" src=\"https:\/\/ilsr.org\/wp-content\/uploads\/2025\/08\/Screenshot-2026-06-22-at-1.35.59-PM-231x300.png\" alt=\"\" width=\"231\" height=\"300\" \/><a href=\"https:\/\/d2g9c.share.hsforms.com\/2faxlFyz9Ry2hx7Jbmm3_cw\" target=\"_blank\" rel=\"noopener\"><strong>Conducting a Contamination Audit Activity<\/strong><\/a><\/span><\/span>\r\n\r\nGuides users in performing an audit and calculating contamination levels for feedstocks or overs. This learning activity provides a method for estimating the physical contamination requirements of Title 14 California Code of Regulations (CCR) sections 17862.1, 17868.3.1, and 17896.61.\r\n\r\nThese activities are intended to support users in designing or refining the design of their composting initiatives and are designed to be printer-friendly, to facilitate use in the field.\r\n\r\n<a href=\"https:\/\/ilsr.org\/es\/article\/composting-for-community\/composting-learning-activities\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Find our full collection of composting learning activities here.<\/span><\/a>\r\n\r\n<hr \/>\r\n\r\n<h4><b>Want to dig deeper?<\/b><\/h4>\r\n<span style=\"font-weight: 400;\">Learn more about <\/span><a href=\"https:\/\/ilsr.org\/es\/composting\/what-is-community-composting\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Compostaje comunitario<\/span><\/a><span style=\"font-weight: 400;\"> and our <\/span><a href=\"https:\/\/ilsr.org\/es\/composting\/community-composter-coalition\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Coalici\u00f3n de compostadores comunitarios<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Learn about the role of composting for fighting food waste, restoring soil health, and building community with ILSR\u2019s <\/span><a href=\"https:\/\/ilsr.org\/es\/composting\/online-certificate-course\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Curso en l\u00ednea con certificado \u00abCompostaje comunitario 101\u00bb<\/span><\/a><span style=\"font-weight: 400;\"> (enrollment is open on an ongoing basis and the course can be completed at your own pace).<\/span>\r\n\r\n<hr \/>\r\n<p style=\"text-align: right;\"><em>Este proyecto tambi\u00e9n ha sido financiado en parte por la Agencia de Protecci\u00f3n Ambiental de los Estados Unidos bajo un acuerdo de asistencia para Reciclaje, Educaci\u00f3n y Difusi\u00f3n (REO) a ILSR (Acuerdo Cooperativo de la EPA 4Y-84077201). Este contenido no refleja necesariamente las opiniones y pol\u00edticas de la Agencia de Protecci\u00f3n Ambiental, ni la Agencia de Protecci\u00f3n Ambiental respalda nombres comerciales ni recomienda el uso de productos comerciales mencionados.<\/em><\/p>","":null,"settings":""}},{"acf_fc_layout":"layout_feed","_acfe_flexible_toggle":null,"component_feed":{"heading":"Learn More","link":{"title":"More from Composting for Community","url":"https:\/\/ilsr.org\/resources-publications\/?initiatives%5B%5D=15&topics%5B%5D=all&authors%5B%5D=all&sort=newest","target":"_blank"},"manually_curate":true,"posts":[18212,25478,26654,26656],"select_post_types":[],"select_taxonomy_terms":[]}}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Reducing Contamination at Community Composting Sites - Course<\/title>\n<meta name=\"description\" content=\"Reducing Contamination at Community Composting Sites is a video presentation course for community composters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ilsr.org\/es\/article\/composting-for-community\/reducing-contamination-at-community-composting-sites\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reducing Contamination at Community Composting Sites - 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