{"id":485918,"date":"2026-10-05T17:06:09","date_gmt":"2026-10-05T17:06:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-ca\/485918\/"},"modified":"2026-10-05T17:06:09","modified_gmt":"2026-10-05T17:06:09","slug":"san-diego-county-issues-beach-closures-and-advisories-amid-sewage-contamination-the-ucsd-guardian","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-ca\/485918\/","title":{"rendered":"San Diego County issues beach closures and advisories amid sewage contamination \u2013 The UCSD Guardian"},"content":{"rendered":"<p>Additional San Diego County beaches closed as of Oct. 3 due to raw sewage contamination from the Tijuana River in Mexico continuing to flow into local waters. According to the <a href=\"https:\/\/cosdapps.sandiegocounty.gov\/sdbeachinfo\/Home\" rel=\"nofollow noopener\" target=\"_blank\">Beach &amp; Bay Water Quality Monitoring Program<\/a>, there are currently four closures and five advisories issued across San Diego.<\/p>\n<p>The San Diego Department of Environmental Health and Quality <a href=\"https:\/\/www.sandiegocounty.gov\/content\/dam\/sdc\/deh\/lwqd\/Beach&amp;Bay\/beachmanagementactions.pdf\" rel=\"nofollow noopener\" target=\"_blank\">issues<\/a> closures and advisories when tested water samples from different beaches contain high levels of fecal bacteria. Over 1,413 DNA copies of bacteria per 100 milliliters of water is considered to be a toxic <a href=\"https:\/\/www.sandiegocounty.gov\/content\/dam\/sdc\/deh\/lwqd\/Beach&amp;Bay\/testingmethodcomparison.pdf\" rel=\"nofollow noopener\" target=\"_blank\">level<\/a> of bacteria. The DEHQ tests water on the coastlines on a weekly basis throughout the year to check for harmful bacteria levels.<\/p>\n<p>Sewage-contaminated water carries harmful <a href=\"https:\/\/www.sandiegocounty.gov\/content\/dam\/sdc\/deh\/lwqd\/Beach&amp;Bay\/DEHQ_bb_public_summary.pdf\" rel=\"nofollow noopener\" target=\"_blank\">pathogens<\/a> that can cause a variety of illnesses, including cholera, dysentery, stomach flu, typhoid and other forms of fevers. Symptoms of illness include diarrhea, rashes, eye irritation, coughing and congestion. Contaminated waters can also carry a variety of viruses including rotavirus, polio and hepatitis A.\u00a0<\/p>\n<p>Advisories are issued to beaches in response to high bacteria content that exceeds normal levels. During advisories, the public can swim at its own discretion.\u00a0<\/p>\n<p>Closures are in effect when runoff sewage or chemicals from the Tijuana river contaminate the water, or when sewage can be found via its odor or coloration. Individuals are not allowed to swim in the water due to health concerns due to the high risk of illness.\u00a0<\/p>\n<p>As of Oct. 3, the <a href=\"https:\/\/cosdapps.sandiegocounty.gov\/sdbeachinfo\/\" rel=\"nofollow noopener\" target=\"_blank\">list<\/a> of most recent advisories across San Diego are Mission Bay: Mission Bay Vacation Isle; La Jolla: La Jolla Cove and WindanSea Beach; and Imperial Beach: Imperial Municipal Beach. All statuses change continuously as new data is collected from all beaches.\u00a0<\/p>\n<p>Closures that <a href=\"https:\/\/cosdapps.sandiegocounty.gov\/sdbeachinfo\/\" rel=\"nofollow noopener\" target=\"_blank\">remain<\/a> in effect since October 2025 are Imperial Beach: Border Field State Park and Imperial Beach: Tijuana Slough National Wildlife Refuge.\u00a0 Since 1997, La Jolla Children\u2019s Pool has maintained an advisory status. As of Oct. 3, Black\u2019s Beach and La Jolla Shores are not contaminated.<\/p>\n<p>The <a href=\"https:\/\/www.ibwc.gov\/tijuana-river-updates-san-diego-ca\/\" rel=\"nofollow noopener\" target=\"_blank\">Parallel Gravity Line<\/a> is Tijuana\u2019s 10-mile main sewage pipeline that transports fecal matter and other raw sewage waste from the Mexico-U.S. border to the San Antonio de los Buenos Wastewater Treatment Plant in Tijuana. In May 2026, the <a href=\"https:\/\/coronadotimes.com\/news\/2026\/05\/31\/two-weeks-after-emergency-repairs-tijuana-wastewater-line-collapses-again\/\" rel=\"nofollow noopener\" target=\"_blank\">pipeline collapsed<\/a> in two separate areas of the structure within the span of two weeks, releasing millions of gallons of untreated sewage into the surrounding oceans. This resulted in the increase of pollution in local coastlines, potentially harming surrounding communities and wildlife.\u00a0<\/p>\n<p>According to the <a href=\"https:\/\/waterdata.ibwc.gov\/AQWebportal\/Data\/Dashboard\/8\" rel=\"nofollow noopener\" target=\"_blank\">U.S. International Boundary &amp; Water Commission<\/a>, the transboundary flow of water from the Tijuana River into the Pacific Ocean rapidly <a href=\"https:\/\/www.kpbs.org\/news\/environment\/2026\/06\/01\/pipeline-collapse-in-tijuana-sends-millions-of-gallons-of-sewage-into-tijuana-river-worsening-air-quality\" rel=\"nofollow noopener\" target=\"_blank\">increased<\/a> from around 10 million gallons to 34 million gallons within three days of the pipeline\u2019s damage. The Parallel Gravity Line underwent emergency <a href=\"https:\/\/ucsdguardian.org\/2026\/05\/26\/tijuana-river-wastewater-line-undergoes-emergency-repairs\/\" rel=\"nofollow noopener\" target=\"_blank\">repairs<\/a> in May of this year. Transboundary flows happen when water, natural resources or pollution cross local, state or international borders.<\/p>\n<p>UC San Diego fourth-year Daniel Peterson, Triton Divers Club representative, shared the effects of contaminated waters on future club events.\u00a0<\/p>\n<p>\u201cIf there is a warning or the levels of pollution are too high, we do have to relocate,\u201d Peterson said. \u201cIf the water is too polluted \u2026 going in the water can cause \u2026 skin rashes and all sorts of other things. So, we always have to be mindful of that. It\u2019s always something that you have to be mindful of.\u201d\u00a0<\/p>\n<p>Advisories and closures will remain in effect until further notice. To follow live updates on San Diego beach advisories, warnings and closures, visit <a href=\"http:\/\/www.sdbeachinfo.com\/\" rel=\"nofollow noopener\" target=\"_blank\">www.sdbeachinfo.com<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"Additional San Diego County beaches closed as of Oct. 3 due to raw sewage contamination from the Tijuana&hellip;\n","protected":false},"author":2,"featured_media":485919,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[174,74,76,75],"class_list":["post-485918","post","type-post","status-publish","format-standard","has-post-thumbnail","category-san-diego","tag-beach","tag-san-diego","tag-san-diego-headlines","tag-san-diego-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/485918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/comments?post=485918"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/485918\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media\/485919"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media?parent=485918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/categories?post=485918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/tags?post=485918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}