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GROUNDWATER SOURCE ZONE EISB CONSTRUCTION COMPLETION REPORT, CASPER PCE PLUMES ORPHAN SITE, CASPER, WYOMING
Wyoming Department of Environmental Quality, Cheyenne. 126 pp, 2017

In 2017, contractors injected ~1,438 gal of emulsified vegetable oil (EVO) and soluble electron donor, 3,880 gal of anaerobic water, and 40 L of KB-1® microbial culture between September 5 and September 12 to implement enhanced in situ bioremediation (EISB) of the groundwater at the Casper PCE Plumes Orphan Site. The EISB injections targeted alluvium and shallow weathered bedrock materials north of the dry cleaner. The soluble electron donor (Newman Zone QR™, a blend of food-grade electron donors, nutrients, cofactors, and vitamins) and the slow-release EVO electron donor (Newman Zone HRO™) were mixed together in a polyethylene tote using a tote mixer, dosed into hydrant water, and injected into the aquifer. To enhance microbial culture survivability, all direct-push injection lifts delivered KB-1 following introduction of the total target EVO volume into each injection lift or well. http://deq.wyoming.gov/media/attachments/Solid%20%26%20Hazardous%20Waste/Active%20Sites/Casper%20PCE%20Plume/Final%20Casper%20OS%20Groundwater%20Source%20Zone%20EISB%20CCR%2011-17-17.PDF



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