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I <br /> I ~'~alte~~c. ,~~ c^~,~ <br /> <br />~~1 ~~., ANOKA, MINNESOTA 55303 612/427-3181 <br /> Item 3. PH monitoring of drainfield water. <br /> <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br /> <br /> Since our meeting of the 22n,d, we have been monLto)-~ng ,~':r v;~ter <br /> di~.charges ourselves using an electronic PH meter, sever:ii t'.'mes <br /> day. The ~'nitial water grab samples had a rather acidic reading, due <br /> to the fact that on that particular day we were hand washinq a number <br /> of water soluble parts, using a dilute mixture of muratic acid. This <br /> is a rather rare procedure, and in an attempt to obtain a trend of <br /> readings, we have recorded the following data. (water sam[~].es are t.~ken <br /> from the wax room, shell room, and caustic rinse tank. The caustic tank <br /> is emptied only periodically, after being neutralized). <br /> <br />Date read Wax Room Shell Room Compcsite <br />7-24-85 9:00 .A.M. 8.6 7.4 7.7 <br />7-24-85 12:00 P.M. 7.4 7.9 7.5 <br />7-24-85 6:00 P.H. 7.4 8.1 7.7 <br />7-25-85 9:00 A.M. 8.2 8.0 8.2 <br />7-25-85 12:00 P.M. 7.4 7.7 7.6 <br />7-25-85 6:00 P.M. 7.6 7.7 ?.T <br /> <br />(silica) used in tile shell room. <br />Item .]. Response to p.=::.]lty clause. <br /> <br /> ;'lo would object to /our initial <br /> basis of what we feel to be fair an.:1 honest <br /> Based upon the laboratory analyses ,3f ou.~ '...'ask: :'-': -- .. .- <br /> identified hazardous wastes, two cf th?m <br /> <br /> <br />