{"id":181,"date":"2016-02-19T18:21:16","date_gmt":"2016-02-19T18:21:16","guid":{"rendered":"https:\/\/www.mcggeotechnical.com\/?page_id=181"},"modified":"2025-12-23T18:44:04","modified_gmt":"2025-12-23T18:44:04","slug":"projects","status":"publish","type":"page","link":"https:\/\/www.mcggeotechnical.com\/?page_id=181","title":{"rendered":"Projects"},"content":{"rendered":"

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Page Content is under development at this time: December 23, 2025.<\/strong><\/em><\/p>\n

Project: Krejci Dump Site (CERCLA)<\/strong><\/p>\n

Client:<\/strong> National Park Service<\/p>\n

Location:<\/strong> Cuyahoga Valley National Park, Ohio<\/p>\n

Years:<\/strong> 2008-2013<\/p>\n

Activities:<\/strong> MCG provided guidance and recommendations to the National Park Service (NPS) Environmental Compliance and Response Branch for the Krejci Dump Site remedial action. The remedial effort\u00a0began in 1987, all remediation goals were achieved by 2012 and site restoration was completed in 2013\u00a0( magazine article at:\u00a0 http:\/\/www.conservancyforcvnp.org\/file\/annual-reports\/Magazine_Fall15-Winter16.pdf<\/a> ).\u00a0MCG provided independent review and oversight of cleanup and restoration activities from 2008 through 2012. MCG also performed erosion control study and provided quality assurance oversight.\u00a0 Data usability reports, DUR 1, DUR 2, and DUR 3,included all cleanup verification data and an analysis of\u00a0usability for cleanup verification purposes\u00a0and are\u00a0available for download\u00a0on the MCG Documents<\/a><\/em>\u00a0page.<\/p>\n

Prior to founding MCG, Dr. Gemperline was employed by the U.S. Bureau of Reclamation (BOR) and supported the National Park Service in its Krejci Dump Site cleanup effort. Dr. Gemperline provided technical leadership to BOR teams involved in the Krejci Dump Site remedial investigation and feasibility study\u00a0and other projects. He developed the both remedial investigation technical approach for the Krejci Dump Site Remedial Investigation and Feasibility Study and the approach used for cleanup verification. Dr. Gemperline oversaw all site characterization activities. Risk-based composite sampling was initially developed for this project. Related papers and presentations are available on the MCG Documents<\/a> <\/em>Page.<\/em><\/p>\n

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Project: Crab Orchard PCBs OU (CERCLA)<\/strong><\/p>\n

Location:<\/strong> Crab Orchard National Wildlife Refuge, Illinois<\/p>\n

Year:<\/strong> 2008-2012<\/p>\n

Activities:<\/strong> CONWR is located in southern Illinois, approximately 5 miles west of Marion, Illinois, primarily in Williamson County. The Industrial Area (Site 33) encompasses approximately 114 acres and is currently used for munitions manufacturing. MCG Supported the U.S. Fish and Wildlife Service by preparing a risk-based sampling plan to support decisions related to cleanup verification of the Industrial Area. The plan was designed to provide acceptable assurance that all consequential PCBs contamination was properly addressed. MCG designed the plan and provided onsite review of implementation activites. MCG also reviewed all data and provided independent quality assurance oversight.\"Site<\/a><\/p>\n

Project: Brightwater WastewaterTreatment Plant<\/strong><\/p>\n

Client:<\/strong> King County WA. Office of the Prosecuting Attorney<\/p>\n

Location:<\/strong> King County, WA.<\/p>\n

Years:<\/strong> 2011-2012<\/p>\n

Activities:<\/strong> Assisted King County, by providing expert geotechnical evaluation related to excessive deformation of a 66-inch steel pipe\u00a0 at the Brightwater Treatment Plant. MCG developed and used laser imaging methods to profile and analyze the\u00a0circumferential and longitudinal deformation along the alignment.<\/p>\n

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Project: Muletown Conduit<\/strong><\/p>\n

Client:<\/strong> U.S. Department of Justice<\/p>\n

Locations:<\/strong> Wiskeytown National Recreation Area<\/p>\n

Year:<\/strong> 2013-Present<\/p>\n

Activities:<\/strong> Providing expert analysis and testimony regarding the performance of the\u00a0Muletown Conduit. Project is Under Litigation Hold.<\/p>\n

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Project Name: Orphan Mine Site, (CERCLA)<\/strong><\/p>\n

Client organizational name:<\/strong> National Park Service, Contaminated Sites Program,<\/p>\n

1050 Walnut Street, Suite 220, Boulder, CO 80302<\/p>\n

POP:<\/strong> Hitachi Consulting<\/p>\n

Geographic Reach:<\/strong> The approximately 30 acre site is located on the south rim of the Grand Canyon in the Grand Canyon National Park.<\/p>\n

Project Objective: <\/strong>Cleanup and restore the former mining site.<\/p>\n

MCG \u00a0Task:<\/strong> Provide technical consultation.<\/p>\n

Accomplishments:<\/strong> Under Litigation Hold.<\/p>\n

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Project: Civil Action<\/strong><\/p>\n

Client:<\/strong> Kay, Casto and Associates<\/p>\n

Location: <\/strong>West Virginia<\/p>\n

Years:<\/strong> 2005-2007<\/p>\n

Activities:<\/strong> Assisted attorneys by providing expertise needed to determine the cause of an 84 inch drainage pipeline failure. This included characterization of movement and pipe soil-structure interaction analyses.<\/p>\n

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Project: TVA Kingston Fossil Fuel Plant Release Site (CERCLA)<\/strong><\/p>\n

Client:<\/strong> BOR\/USEPA<\/p>\n

Locations:<\/strong> Kingston, Tennessee<\/p>\n

Activities:<\/strong> The TVA Kingston Fossil Plant coal fly ash slurry spill occurred just before 1 a.m. on Monday December 22, 2008, when an ash dike ruptured at an 84-acre (0.34\u00a0km2<\/span><\/sup>) solid waste containment area at the Tennessee Valley Authority’s Kingston Fossil Plant in Roane County, Tennessee.\u00a0\u00a01.1\u00a0billion US gallons (4,200,000\u00a0m3<\/span><\/sup>) of coal fly ash slurry\u00a0was released (Wikipedia<\/a>).MCG Reviewed plans and evaluated the stability of\u00a0both the remaining earthwork and replacement dikes.\u00a0 MCG Performed laboratory test to evaluate the potential use of electro-osmosis to consolidate the remaining fly ash.<\/p>\n

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Project: Old Yuma Mine (CERCLA)<\/strong><\/p>\n

Client:<\/strong> NPS<\/p>\n

Locations: <\/strong>Saguaro National Park, AZ<\/p>\n

Activities:<\/strong> Reviewed EE\/CA QAPP and Sample Analysis Plan and made recommendations to improve efficiency and effectiveness of the mine site characterization.<\/p>\n

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Project: Grand Canyon High School<\/strong><\/p>\n

Client:<\/strong> National Park Service<\/p>\n

Places:<\/strong> Grand Canyon National Park, Arizona<\/p>\n

Year:<\/strong> 2007-2009<\/p>\n

Activities:<\/strong> MCGled the\u00a0design, implementation and reporting effort for a\u00a0program to evaluate persistent rumors that the athletic field was constructed using radioactive fill.<\/p>\n

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Project<\/strong>: Underground Storage Tank (UST) Investigation<\/strong><\/p>\n

Client:<\/strong> Veterans Administration<\/p>\n

Locations:<\/strong> Grand Junction, Colorado<\/p>\n

Activities:<\/strong> Developed and implemented plans investigating the potential for groundwater contamination from an underground fuel storage tank.<\/p>\n

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Project:<\/strong> McClusky Canal<\/strong><\/p>\n

Client:<\/strong> Bureau of Reclamation<\/p>\n

Location:<\/strong> North Dakota<\/p>\n

Activities:<\/strong> Evaluated slope failures along a two mile reach of the 75-mile long McClusky Canal, Evaluated risk to canal workers and recreational users, and recommended alternative remedial measures.\"pic\"<\/a> \"pic2\"<\/a>\"pic3\"<\/a>\"pic4\"<\/a>\"Picture1\"<\/a><\/p>\n

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Project\u2011Constrained Modulus of Gravel and Crushed Rock<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Activity:<\/strong> Large Scale Testing of Crushed Rock – Research<\/p>\n

Client:<\/strong> Plastics Pipe Institute<\/p>\n

Location:<\/strong> MCG Geotechnical Laboratory, Colorado<\/p>\n

Activities:<\/strong> Developed a one-dimensional Compression Test to determine the constrained modulus of gravel and crushed rock and performed a parametric study to evaluate the effect of crushed rock properties on constrained modulus. The full report may be downloaded on from the MCG Documents page or by clicking MCG Final Ms Study Report031410<\/a>.<\/p>\n

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Project\u2011Use of Recycled Materials in Controlled Low Strength Material (a.k.a. flowable fill)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Activity:<\/strong> Laboratory testing- Research<\/p>\n

Client:<\/strong> Plastics Pipe Institute<\/p>\n

Location:<\/strong> University of Colorado, Denver & MCG Geotechnical Laboratory, Morrison Colorado<\/p>\n

Activities:<\/strong> Evaluated the physical characteristics of flowable fill mix designs that utilizes the waste products of the energy production and recycled material industries. These included spray drier ash, bottom ash, fly ash, crushed glass, crumb rubber, sand-size crushed concrete and other material. (Beneficial use of recycled materials in flowable fill (CLSM)<\/a>)<\/p>\n

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Project\u2011Maya Initiative<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Activity:<\/strong> Structural Evaluation of Archeological Excavations, Tunnels, and Unearthed Mayan Structures<\/p>\n

Client:<\/strong> Getty Conservati0n Institute<\/p>\n

Location:<\/strong> Joya De Ceren, El Salvador and Copan, Honduras<\/p>\n

Activities:<\/strong>\u00a0Dr. Gemperline evaluated the stability of unearthed structures,\u00a0tunnels, excavations and shelters at Mayan Archeological sites in Honduras and El Salvador.\u00a0Recommendations for preservation and conservation were made. Cracks had recently\u00a0developed in the Hieroglyphic Staircase at Copan and that were suspected to be caused by\u00a0ground movement associated with an underlying archeological tunnel.\u00a0Also evaluated the effect of groundwater, vegetation\u00a0and algal growth\u00a0on the recently unearthed\u00a0Mayan structures near Copan.\u00a0 \u00a0(Click here to view Getty<\/em><\/a> project summary)(Click here to view Getty\u00a0report<\/em><\/a>) Additionally, the stability of excavations that unearthed adobe ruins near Joya De Ceren, El Salvador was\u00a0analyzed and recommendations\u00a0to achieve sustainable were\u00a0preservation made.\u00a0 Seismic analysis of unearthed structures, cut slopes, and modern structures that covered the sites were performed.\u00a0The risk of groundwater intrusion was evaluated,\u00a0\u00a0feasibility level designs that ensure seismic stability of structures of archeological structures were developed.\u00a0Furthermore an\u00a0early\u00a0 warning system to alert of potential groundwater flooding was designed.\u00a0Emergency actions necessary to\u00a0protect\u00a0archeological structures\u00a0in the event of groundwater flooding were developed.\"797403-R1-2A\"<\/a> \"797402-R1-5A\"<\/a> \"797403-R1-5Aajpg\"<\/a> \"Dscn2098_a\"<\/a> \"Dscn2100_a\"<\/a> \"DSCN2132\"<\/a> \"DSCN2180\"<\/a> \"Figure<\/a> \"Figure<\/a> \"Figure<\/a> \"Joya<\/a> \"797450-R1-14A\"<\/a> \"copan\"<\/a> \"DSCN2233\"<\/a> \"DSCN2239\"<\/a>\"DSCN2399\"<\/a> \"DSCN2420\"<\/a> \"DSCN2425\"<\/a> \"foundation_displacement\"<\/a> \"GreatPlazaDrain\"<\/a> \"roots\"<\/a> \"undercut_tunnel\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u00a0 \u00a0 \u00a0 Page Content is under development at this time: December 23, 2025. Project: Krejci Dump Site (CERCLA) Client: National Park Service Location: Cuyahoga Valley National Park, Ohio Years: 2008-2013 Activities: MCG provided guidance and recommendations to the National Park Service (NPS) Environmental Compliance and Response Branch for the Krejci Dump Site remedial action. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-181","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=\/wp\/v2\/pages\/181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=181"}],"version-history":[{"count":10,"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=\/wp\/v2\/pages\/181\/revisions"}],"predecessor-version":[{"id":483,"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=\/wp\/v2\/pages\/181\/revisions\/483"}],"wp:attachment":[{"href":"https:\/\/www.mcggeotechnical.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}