加州总检察长起诉Chiquita Canyon垃圾填埋场：地下高温反应致含苯渗滤液多次外泄
加利福尼亚州总检察长 Rob Bonta 10月27日宣布，其办公室与加州有毒物质管制局（DTSC）共同起诉 Chiquita Canyon 垃圾填埋场的运营商 Waste Connections 等所有者与运营方，指其在填埋场地下高温反应持续期间长期、普遍地未能依法管理有害废物。诉讼依据州有害废物管制法、《政府法典》第12607条与《商业与职业法典》第17200条，寻求民事罚款、返还不当得利与禁令救济，包括设立一个污染治理基金。
该填埋场位于洛杉矶县 Santa Clarita Valley，占地639英亩，1972年启用；因未能取得洛杉矶区域水质管制委员会的许可，已于2025年1月1日起停止接收垃圾。
据总检察长办公室介绍，填埋场地下高温反应自2022年5月起持续，受影响面积已由最初的20英亩扩大到至少90英亩，局部温度超过212华氏度、最高达260华氏度。反应产生大量渗滤液，其中已检出苯等危险化学物质，须作为有害废物抽取与处置，但运营方多次处置不当：2025年11月14日，8,000加仑有害渗滤液溢入填埋场东侧的雨水沉淀池；2025年12月29日至30日，混有渗滤液的雨水又溢入 Castaic Creek，并汇入 Santa Clara 河。
填埋场周边有 Val Verde 等多个居民社区，住有数千名居民，其中 Val Verde 距填埋场开发区仅约1,000英尺；附近还有2所幼儿园、4所小学、2所初中与2所高中。2023年11月，美国环保署（EPA）、加州环保署（CalEPA）、DTSC、南海岸空气质量管理局（SCAQMD）与洛杉矶县多个部门已组建多机构行动组，洛杉矶县与 SCAQMD 此前已分别就该填埋场提起诉讼，周边居民也已提出多起个人与集体诉讼。
Bonta 表示，运营方多年来以渗滤液外泄等方式反复违反州有害废物法律，其办公室将介入保护当地的水、土壤与空气。DTSC 局长 Katherine Butler 表示，Waste Connections 必须依法安全管理有害废物、清理既有污染并防止进一步损害。
来源：GSM·美国
California AG Sues Chiquita Canyon Landfill Operators Over Repeated Toxic Leachate Releases
California Attorney General Rob Bonta announced on October 27 that his office, together with the Department of Toxic Substances Control (DTSC), has filed a lawsuit against Waste Connections and the other owners and operators of the Chiquita Canyon Landfill, alleging repeated and pervasive failures to lawfully manage hazardous waste amid the landfill's ongoing subsurface elevated-temperature event. Brought under the state Hazardous Waste Control Law, Government Code section 12607 and Business and Professions Code section 17200, the suit seeks civil penalties, disgorgement, and injunctive and other equitable relief, including an abatement fund.
The 639-acre landfill in Los Angeles County's Santa Clarita Valley opened in 1972 and stopped accepting waste on January 1, 2025, after failing to obtain a permit from the Los Angeles Regional Water Quality Control Board.
According to the Attorney General's office, the subsurface reaction began in May 2022 and the affected area has grown from 20 acres to at least 90 acres, with temperatures exceeding 212 degrees Fahrenheit in places and reaching as high as 260 degrees. The reaction produces large volumes of leachate found to contain benzene, which must be handled as hazardous waste. On November 14, 2025, the landfill spilled 8,000 gallons of hazardous leachate into its eastern stormwater sedimentation basin; on December 29 and 30, 2025, stormwater mixed with leachate was released into Castaic Creek, which flows into the Santa Clara River.
Several residential communities, including Val Verde, about 1,000 feet from the landfill's developed area, are home to thousands of residents, and two preschools, four elementary schools, two middle schools and two high schools are nearby. In November 2023, the U.S. EPA, CalEPA, DTSC, the South Coast AQMD and Los Angeles County departments formed a multi-agency action team; the county and the SCAQMD have already filed their own lawsuits, as have residents.
Bonta said the operators have repeatedly violated state hazardous waste laws through leachate releases and other failures, and that his office will step in to protect the region's water, soil and air. DTSC Director Katherine Butler said Waste Connections must manage hazardous waste safely and in full compliance with the law, clean up existing contamination and prevent future harm.
来源：GSM·美国（原文链接）
图片来源：图：洛杉矶县 Puente Hills 垃圾填埋场的天然气发电设施（资料图）。Heidi De Vries摄，CC BY 2.0，来源：Wikimedia Commons / Photo: Gas-to-energy facility at the Puente Hills Landfill in Los Angeles County (file photo). Photo by Heidi De Vries, CC BY 2.0, via Wikimedia Commons
