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I <br /> I <br /> 1 <br /> 3 insimLuF"M <br /> A Subsidiary of Insitulorm Mid-Americe. <br /> CENTRAL, INC. <br /> February 13, 1996 <br /> St. Anthony Village <br /> 3301 Silver Lake Road <br /> St. Anthony,MN 55418 <br /> ATTN: Mr. Larry Hamer <br /> : RE: Insituform® Process Project: <br /> 36th Ave. Project-Edwards to <br /> Roosevelt, St. Anthony, MN <br /> Dear Mr. Hamer: • <br /> The Insituform process was developed to provide a means of reconstructing existing pipe, conduit <br /> i or passageways without extensive excavation. Some typical applications include: <br /> 1. Halting settlement by stopping infiltration of soil and bedding material which often <br /> accompanies groundwater infiltration causing soil voids and shifting ground in gravity <br /> pipelines. <br /> 2. Eliminating infiltration of groundwater through joints,breaks and missing sections of gravity <br /> pipelines. <br /> 3. Increasing the capacity of existing pipelines by smoothing the interior surface and providing <br /> smooth transitions over joints and protrusions. <br /> 4. Reducing maintenance and increasing capacity by reducing depositions and eliminating root <br /> intrusions into gravity pipelines. <br /> 5. Protection of pipe from attack by corrosive chemical effluent and vapors. <br /> 6. Eliminating the exfiltration of pollutants and chemicals into surrounding groundwater <br /> aquifers through joints and cracks in pipelines. <br /> Elimination of pressure leaks in waterlines b sealing pinholes,joints and cracks. • <br /> . 7. E p Y <br /> 4510 West 77th Street- Edina,MN 55435 - (612)835-1006 <br /> 800-325-1159- Fax(612)896-1044 <br />