{"id":4325,"date":"2017-06-04T13:47:42","date_gmt":"2017-06-04T05:47:42","guid":{"rendered":"http:\/\/www.envguide.com\/%e7%94%b5%e9%98%bb%e5%8a%a0%e7%83%ad%e4%b8%8e%e8%92%b8%e6%b1%bd%e5%bc%ba%e5%8c%96%e6%8a%bd%e6%8f%90%e6%b3%95%e5%ba%94%e7%94%a8%e4%ba%8e%e8%b6%85%e7%ba%a7%e5%9f%ba%e9%87%91%e5%9c%ba%e5%9c%b0\/"},"modified":"2018-04-06T02:53:21","modified_gmt":"2018-04-05T18:53:21","slug":"combining-two-thermal-technologies-at-the-groveland-wells-superfund-site","status":"publish","type":"post","link":"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/","title":{"rendered":"Combining Two Thermal Technologies at the Groveland Wells Superfund Site"},"content":{"rendered":"<p><img loading=\"lazy\" class=\"size-full wp-image-3596 aligncenter\" src=\"http:\/\/www.envguide.com\/wp-content\/uploads\/2017\/06\/11.png\" alt=\"\" width=\"276\" height=\"199\" \/><\/p>\n<p>Company Informaiton\uff1a<a href=\"http:\/\/www.terratherm.com\/\" target=\"_blank\" rel=\"noopener\">Click<\/a><\/p>\n<div class=\"rt_heading_wrapper style-1\">\n\t\t\t\t\t\t<p class=\"rt_heading  style-1\" >Site Information:<\/p>\n\t\t\t\t\t<\/div>\nIn 1979, Volatile Organic Compound (VOC) contamination was detected at concentrations above drinking water standards in two municipal water supply wells in Groveland, MA. The wells were shut down. The main source of the contamination was identified as the former Valley Manufacturing Products Company, which began manufacturing various metal parts in 1963. At the time, operators disposed of liquids through a leach field and it was later determined that a leaky underground storage tank containing TCE was also a source of groundwater contamination. Nearly 850 acres (344 hectacres) (including the former Valley Manufacturing Products Company property now known as the Groveland Wells Superfund Site) were added to the National Priorities List in 1982. Remedial actions at the Site included the installations and operation of a Soil Vapor Extraction (SVE) system in the source area between 1992 and 2002 and a groundwater extraction and treatment system, which has operated since 2000. Following a remedial investigation, it was determined that the SVE system was ineffective, thus ISTT was recommended.<\/p>\n<p><strong>Contaminants of Concern (COCs): <\/strong>TCE; 1,1-dichloroethene; trans-1,2 dichloroethene; cis-1,2-dichloroethene; methylene chloride; tetrachloroethene; 1,1,1-trichloroethane; toluene; vinyl chloride.<\/p>\n<div class=\"rt_heading_wrapper style-1\">\n\t\t\t\t\t\t<p class=\"rt_heading  style-1\" >Site Geology\/Hydrogeology:<\/p>\n\t\t\t\t\t<\/div>\n\t \n\t\t<div  class=\"bullet-list style-3  check\">\n\t\t\n<ul>\n<li>Shallow overburden (fill and dark brown loamy sand) layer extending from the ground surface to approximately 4 to 8 ft (1.2 to 2.4 m) below ground surface (bgs). The shallow overburden has a thin layer of perched groundwater in the sand layer just above the clay. <\/li>\n<li>Clay layer approximately 2 to 10 ft (0.6 to 3 m) thick, thinning north to south. The clay layer is approximately 8 to 16 ft (2.4 to 4.9 m) bgs with a downward hydraulic gradient <\/li>\n<li>Deep overburden composed of silty fine sand and\/or glacial till extending to bedrock. <\/li>\n<li>Varying bedrock surface at approximately 45 ft (14 m) bgs. <\/li>\n<\/ul>\n\n\t\t<\/div>\n<div class=\"rt_heading_wrapper style-1\">\n\t\t\t\t\t\t<p class=\"rt_heading  style-1\" >Objective: <\/p>\n\t\t\t\t\t<\/div>\nThe overall objective of the Remedial Action was to reduce concentrations of contaminants in the source area vadose zone soil and overburden groundwater to below the cleanup goals specified in the Record of Decision and Explanation of Significant Differences.<\/p>\n<div class=\"rt_heading_wrapper style-1\">\n\t\t\t\t\t\t<p class=\"rt_heading  style-1\" >Challenge\/Solution: <\/p>\n\t\t\t\t\t<\/div>\nDue to high soil resistivity and permeability encountered in the vadose zone during electrode operation, the heating system was modified to include shallow steam injection wells.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abs: In 1979, Volatile Organic Compound (VOC) contamination was detected at concentrations above<br \/>\ndrinking water standards in two municipal water supply wells in Groveland, MA. The wells were shut down. The main source of the contamination was identified as the former Valley Manufacturing Products Company, which began manufacturing various metal parts in 1963. At the time, operators disposed of liquids through a leach field and it was later determined that a leaky underground storage tank containing TCE was also a source of groundwater contamination. Nearly 850 acres (344 hectacres) (including the former Valley Manufacturing Products Company property now known as the Groveland Wells Superfund Site) were added to the National Priorities List in 1982. Remedial actions at the Site included the installations and operation of a Soil Vapor Extraction (SVE) system in the source area between 1992 and 2002 and a groundwater extraction and treatment system, which has operated since 2000. Following a remedial investigation, it was determined that the SVE system was ineffective, thus ISTT was recommended&#8230; <a class=\"more-link\" href=\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\">\u7ee7\u7eed\u9605\u8bfb<\/a><\/p>\n","protected":false},"author":10,"featured_media":4721,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[127,139],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Combining Two Thermal Technologies at the Groveland Wells Superfund Site &bull; EnvGuide<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Combining Two Thermal Technologies at the Groveland Wells Superfund Site &bull; EnvGuide\" \/>\n<meta property=\"og:description\" content=\"Abs: In 1979, Volatile Organic Compound (VOC) contamination was detected at concentrations above drinking water standards in two municipal water supply wells in Groveland, MA. The wells were shut down. The main source of the contamination was identified as the former Valley Manufacturing Products Company, which began manufacturing various metal parts in 1963. At the time, operators disposed of liquids through a leach field and it was later determined that a leaky underground storage tank containing TCE was also a source of groundwater contamination. Nearly 850 acres (344 hectacres) (including the former Valley Manufacturing Products Company property now known as the Groveland Wells Superfund Site) were added to the National Priorities List in 1982. Remedial actions at the Site included the installations and operation of a Soil Vapor Extraction (SVE) system in the source area between 1992 and 2002 and a groundwater extraction and treatment system, which has operated since 2000. Following a remedial investigation, it was determined that the SVE system was ineffective, thus ISTT was recommended.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\" \/>\n<meta property=\"og:site_name\" content=\"EnvGuide\" \/>\n<meta property=\"article:published_time\" content=\"2017-06-04T05:47:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-04-05T18:53:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/us.envguide.com\/wp-content\/uploads\/\/2017\/06\/11.png\" \/>\n\t<meta property=\"og:image:width\" content=\"276\" \/>\n\t<meta property=\"og:image:height\" content=\"199\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"huamin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"huamin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\"},\"author\":{\"name\":\"huamin\",\"@id\":\"https:\/\/us.envguide.com\/#\/schema\/person\/0bbb3681ade9fec8ae40f694aa47dc43\"},\"headline\":\"Combining Two Thermal Technologies at the Groveland Wells Superfund Site\",\"datePublished\":\"2017-06-04T05:47:42+00:00\",\"dateModified\":\"2018-04-05T18:53:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\"},\"wordCount\":395,\"publisher\":{\"@id\":\"https:\/\/us.envguide.com\/#organization\"},\"articleSection\":[\"Professional Information\",\"Case Studies\"],\"inLanguage\":\"zh-CN\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\",\"url\":\"https:\/\/us.envguide.com\/combining-two-thermal-technologies-at-the-groveland-wells-superfund-site\/\",\"name\":\"Combining Two Thermal Technologies at the Groveland Wells Superfund Site &bull; 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