环保署提出Shieldalloy超级基金场址地下水清理下一步方案 Newfield高氯酸盐污染拟以自然衰减处理
纽约—美国环境保护署（EPA）11月9日提出新泽西州 Newfield 的 Shieldalloy 公司超级基金场址清理下一步方案，针对地下水中的高氯酸盐污染，拟依靠自然过程逐步降低污染，并配合制度控制与长期监测，防止人群接触并跟踪进展。这处污染同时影响 Vineland 市。
按方案，环保署拟依靠生物降解、稀释与扩散等自然过程随时间分解污染物，同时长期监测地下水、确认方法有效；方案还将禁止在场址受污染地下水区域安装私人饮用水井。场址周边家庭与企业均已接入公共供水系统，其用水按《安全饮用水法》采样检测。
该场址占地67英亩，Shieldalloy Metallurgical 公司曾于1955年至2006年在此运营专业工厂，生产铬合金等产品，并把工业废水直接排入潟湖与地表水。场址内有一条汇入 Burnt Mill Pond 的间歇性溪流 Hudson Branch，还包括一块19.8英亩、未用于生产但被公司购入以配合先前清理工作的农田。此前该场址已完成污染土壤清理，六价铬与挥发性有机物等其他地下水污染物的清理仍在进行；本次方案处理的高氯酸盐是无色无味的化合物，曾用于场址运营。
环保署第二区区域管理员 Michael Martucci 说，这项拟议清理方案是处理 Shieldalloy 超级基金场址污染的重要一步，方案在保护人体健康与环境的同时，也是处理地下水污染最有效率的选项。
环保署即日起至12月11日就方案征求公众意见，为期30天；书面意见可寄至 290 Broadway, New York, NY 10007 的修复项目经理 William Friedmann，以12月9日邮戳为准，也可通过电子邮件提交。环保署将于11月19日晚6时30分举行线上公众会议，介绍方案并答疑，参会需提前登记。
（来源：美国环境保护署）
EPA Proposes Next Step in Shieldalloy Superfund Groundwater Cleanup in Newfield, New Jersey
NEW YORK — The U.S. Environmental Protection Agency (EPA) on November 9 proposed the next step in the cleanup of the Shieldalloy Corp. Superfund site in Newfield, New Jersey. The proposed plan would address perchlorate contamination in groundwater, which also impacts the City of Vineland, by relying on natural processes to reduce contamination over time, along with institutional controls and long-term monitoring to prevent exposure and track progress.
Under the plan, naturally occurring processes, including biodegradation, dilution, and dispersion, would break down contamination over time, with long-term monitoring of the groundwater to ensure the method is working. The plan would also prohibit the installation of private drinking water wells that draw from the contaminated groundwater at the site. Homes and businesses near the site are connected to public water supply systems, which are sampled under the Safe Drinking Water Act.
The site is a 67-acre area where the Shieldalloy Metallurgical Corporation operated a specialty facility that produced chromium alloy and other products from 1955 to 2006, discharging industrial wastewater directly into lagoons and surface water. The area includes the Hudson Branch, an intermittent stream that discharges into Burnt Mill Pond, and a 19.8-acre farm parcel that was not used for manufacturing but was purchased by the company to support previous cleanup activities. Previous actions at the site include the cleanup of contaminated soil and the continued cleanup of other non-perchlorate groundwater contaminants, including hexavalent chromium and volatile organic compounds; the new plan addresses perchlorates, colorless, odorless chemical compounds that were used for facility operations.
“The proposed cleanup plan is a significant step in addressing contamination at the Shieldalloy Superfund site,” said EPA Region 2 Regional Administrator Michael Martucci. “We are pleased to present a plan that is protective of human health and the environment while being the most efficient option for addressing groundwater contamination.”
EPA will accept public comments on the proposed plan for 30 days, beginning November 9, 2026, and ending December 11, 2026. Written comments may be submitted to William Friedmann, Remedial Project Manager, 290 Broadway, New York, NY 10007, postmarked by December 9, or by email. EPA will also hold a virtual public meeting on November 19, 2026, at 6:30 p.m. to provide an overview of the cleanup proposal and answer community questions, with advance registration required.
(Source: U.S. Environmental Protection Agency)
来源：美国环境保护署
发布：GSM·美国（发布链接）
图片来源：图：位于 Washington 的美国环境保护署总部大楼。GSM联邦机构固定图库照片，美国政府作品，公共领域。 / Photo: The U.S. Environmental Protection Agency headquarters building in Washington. GSM federal fixed library photo, U.S. government work, public domain.
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