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WSI <br />December 29, 1987 <br />Ms. Lee Ann K. Johnson <br />Hazardous Waste Section <br />Hazardous Waste Division <br />Minnesota Pollution Control Agency <br />520 Lafayette Road <br />St. Paul, Minnesota 55155 - <br />Dear Ms. Johnson: <br />I would like to take this opportunity to inform you of recent developments <br />in our on -going investigation and comp�iance activity here at Washington <br />Scientific Industries. Since your last inspection of February 12, 1986 <br />we have maintained a continual monitoring program of our operations. As <br />part of that program, in May of 1987, we invited Pace Laboratories to take <br />samples of soil borings being conducted for the construction of a new <br />parking lot for our facility. Analysis of soil borings at that time <br />indicated the potential for contamination of soil and perhaps groundwater <br />with volatile organic compounds. <br />As soon as these analyses became available in the summer of 1987 we contacted <br />Delta Environmental to conduct a full-scale program of sampling, analysis <br />and investigation, with an eye toward recommendations for the company to <br />implement. <br />As a result of this study, Delta has determined than there is some contamina- <br />tion of soils and a shallow groundwater aquifer in the vicinity of the plant <br />buildings which can be corrected by an appropriate groundwater collection <br />system to be designed by Delta. This plan is more fully explained in Delta's <br />report. <br />The company is prepared to implement Delta's recommendations in an appropriate <br />time schedule, depending on weather, conditions and other factors discussed <br />in the report. I assume that the MPCA will concur in the plans to correct <br />this potential problem at the earliest possible time consistent with good <br />engineering practice. <br />I believe the attached report fully explains the situation here at WSI. If <br />you have any questions, I will be happy to address them. Technical quettions <br />will, of course, be referred to our consultants, Face Laboratories, Inc. .-%ad <br />Delta Environmental Consultants, Inc. I will be happy to discuss our plans in <br />this regard at your convenience. <br />Yours verity truly, <br />if <br />J(e Pallansch <br />WASHINGTON SCI<NTIFIC INOUSTRIaSI INC. <br />7l�0} w W*Yf1U •rvd • LAM9 VYe, MMMsorn SS.M 0 ►!q/M•ty17)1211 <br />