[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-563624-105":53,"doc-detail-563624-en":126},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":119,"head_meta":121,"extra_data":123,"updated_unix":125},105,"en","ph-evaluation-report-cement-creek-and-animas-river","pH Evaluation Report - Cement Creek and Animas River","","This report provides an analysis of pH levels in Cement Creek and the Animas River following the August 2015 mine release incident. The document compares post-incident acidity measurements against baseline data collected prior to the arrival of the contaminant plume. Findings indicate that while pH levels dropped significantly near the release site, reaching values as acidic as 3.74 in Cement Creek, downstream locations began showing a gradual recovery toward pre-incident levels. The report includes illustrative reference points, comparing specific pH readings to common substances such as black coffee, saliva, and tomato juice to contextualize the severity of the acidity. While the data characterizes the chemical changes in the water, it also notes that ongoing evaluations are required to determine the full ecological impact on fish and aquatic life within the affected river systems. The objective, data-driven assessment serves as a critical update regarding water quality monitoring efforts during the emergency response period.",{"@graph":63,"@context":118},[64,80,101],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/ph-evaluation-report-cement-creek-and-animas-river/563624/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/ph-evaluation-report-cement-creek-and-animas-river/563624.png","ImageObject",442,249,{"name":88,"@type":89},"\tJames","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-24","2026-10-12",true,{"@type":98,"interactionType":99,"userInteractionCount":47},"InteractionCounter",{"@type":100},"ViewAction",{"@type":102,"mainEntity":103},"FAQPage",[104,110,114],{"name":105,"@type":106,"acceptedAnswer":107},"What was the range of pH levels before the contaminant plume arrived?","Question",{"text":108,"@type":109},"Before the arrival of the contaminant plume, pH levels along the monitored locations were generally found to range between 6.5 and 7.6.","Answer",{"name":111,"@type":106,"acceptedAnswer":112},"How did the pH level in Cement Creek change following the mine release?",{"text":113,"@type":109},"Following the mine release, the acidity level in Cement Creek remained low at a pH of 3.74.",{"name":115,"@type":106,"acceptedAnswer":116},"What substances are used in the document to provide context for specific pH levels?",{"text":117,"@type":109},"The document compares a pH of 4.5 to black coffee, and a pH of 3.74 to tomato juice and apples, while noting that saliva has a pH of approximately 6 and pure water has a pH of 7.","https://schema.org",{"og:url":78,"og:type":120,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":122,"canonical":78},"index,follow",{"doc_id":124,"site_id":56},563624,1792083181,{"code":4,"msg":5,"data":127},{"doc_id":124,"user_id":128,"nickname":88,"user_avatar":129,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":130,"file_id":131,"file_url":132,"file_type":133,"file_size":134,"view_count":47,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":9,"language":135,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":136,"faqs":137,"seo_title":138,"seo_description":61,"update_tm":139,"read_time":4},2336474466412,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","The following is a summary of the evaluation of pH data collected as of August 6, 2015. Additional information related to additional data, including metals, is being developed and will be provided in a separate statement.  \npH (a measure of acidity) was measured at a number of locations along Cement Creek and the Animas River to Durango and beyond to Farmington, New Mexico. Except for locations within Cement Creek, generally, pH levels were measured before the arrival of the contaminant plume and found to range between 6.5 and 7.6. When the contaminated water from the mine release passed a sampling location, the pH lowered (indicating more acid) to approximately 4.8 (below Silverton) . A pH of 4.5 is consistent with the pH of a liquid like black coffee. Later, however, in locations down river, the pH began to return to pre-incident levels. Water acidity levels in the Animas above Cement Creek have been consistent over the past two days at approximately 6.4 to 6.8. For reference, the pH of saliva is roughly 6 and the pH of pure water is 7. The acidity level in Cement Creek has remained low at 3.74 since the mine release. Tomato juice and apples also have a pH of approximately 3.74. While this reference information is relevant to skin exposure, the evaluation of impacts of these pH levels on fish and other aquatic life is ongoing.  \n*1622624*  \n1622624","cbCaioRDw1wh8eZy","https://ap.wps.com/l/cbCaioRDw1wh8eZy","pdf",558434,"English","# Overview of pH Data Evaluation\n## Baseline and Post-Incident pH Trends\n## Comparative pH Reference Data","[{\"question\":\"What was the range of pH levels before the contaminant plume arrived?\",\"answer\":\"Before the arrival of the contaminant plume, pH levels along the monitored locations were generally found to range between 6.5 and 7.6.\"},{\"question\":\"How did the pH level in Cement Creek change following the mine release?\",\"answer\":\"Following the mine release, the acidity level in Cement Creek remained low at a pH of 3.74.\"},{\"question\":\"What substances are used in the document to provide context for specific pH levels?\",\"answer\":\"The document compares a pH of 4.5 to black coffee, and a pH of 3.74 to tomato juice and apples, while noting that saliva has a pH of approximately 6 and pure water has a pH of 7.\"}]","pH Evaluation Report - Cement Creek and Animas River | PDF",1791836887]