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4Cm KERAMIDA <br />ENGINEERS « SCIENTISTS • J: LANNERS <br />GLOBAL EHS & SUSTAINABILITY SERVICES <br />March 18, 2019 <br />Ms. Michelle Smith <br />City of South Bend — Environmental Services <br />3113 Riverside Drive <br />South Bend, IN 46628 <br />401 North College Avenue <br />Indianapolis, Indiana 46202 <br />(317) 685-6600 • Fax (317) 685-6610 <br />1-800-508-8034 <br />info@keramida.com • www.keramida.com <br />Re: Proposal for Well Redevelopment, Groundwater Statistical Analyses, <br />and Technical Evaluation <br />Organic Resources Facility — Closed Biosolids Landfill <br />4340 Trade Drive, South Bend, Indiana <br />KERAMIDA Proposal No. P22579R <br />Dear Ms. Smith: <br />In accordance with your request, KERAMIDA Inc. (KERAMIDA) has prepared this proposal and <br />cost estimate to perform well redevelopment, groundwater statistical analysis, and technical <br />evaluation for the Organic Resources Facility's closed biosolids landfill, located at 4340 Trade <br />Drive in South Bend, Indiana. Details of the work to be performed are presented in the following <br />sections. <br />BACKGROUND <br />There is an ongoing groundwater monitoring and statistical analyses program at the Organic <br />Resources Facility's closed biosolids landfill at 4340 Trade Drive in South Bend, Indiana. The <br />furthest downgradient well, MW-13, was installed under KERAMIDA's oversight in December <br />2015, and was redeveloped by others prior to the May 2017 sampling event. Details can be found in <br />the May 2017 Groundwater Quality Data and Statistics dated July 24, 2017. As indicated by the City of <br />South Bend, groundwater samples collected from MW-13 during the 2018 sampling events remained <br />turbid. In addition, the 2018 analytical results reported nitrate concentrations above the site -specific <br />groundwater protection standard (GWPS) in samples collected from MW-13. In Indiana <br />Department of Environmental Management's (IDEM's) review letter of the October 2018 Groundwater <br />Quality Data and Statistics dated January 23, 2019, well redevelopment for MW-13 prior to next <br />sampling event was recommended. <br />The 2019 groundwater sampling events are scheduled in May and October, and will be <br />performed by the City of South Bend. According to the Closure/Post-Closure Plan that was <br />approved by the Indiana Department of Environmental Management (IDEM) in January 2008, <br />"...the Facility must determine whether there is a statistically significant increase (or <br />increase/decrease in the case of pH) over the background for each Phase I or Phase II <br />parameter..." In addition, the Facility must also perform an annual inspection of the landfill <br />(Biosolids Lagoon #4). The inspection is not included in KERAMIDA's proposed scope of work. <br />INCREASING OUR CLIENTS'PR OFITA BILITY THR 0 UGH SMA R T CONS ULTINGTm <br />ENGINEERS • GEOLOGISTS • SCIENTISTS • SAFETY PROFESSIONALS • INDUSTRIAL HYGIENISTS • TOXICOLOGISTS • MODELING EXPERTS <br />INDIANAPOLIS, IN • GRANGER, IN • CHICAGO, IL • NEW YORK, NY • SACRAMENTO, CA • LOS ANGELES, CA • PITTSBURGH, PA <br />