Laserfiche WebLink
03114/2000 20:25 9187819357 FARR ASSOCIATES tout tiz <br /> P ^ <br /> FARR ASSOCIATES <br /> Environmental En ineering and Geohydrology <br /> March 13, 2(XJO <br /> Ms. Laurie Duncan <br /> San Joaquin, County Public Health, Services <br /> Envirortmenta7 Health Division <br /> 304 E. Weber Ave,, 3' Fl(mir <br /> Stockton, California 95202 <br /> Subject: Work flan for Abandonment of Monitoring Weals at the Forwer Union ice <br /> Facility, 425 North Union Street, Stockton - Site Code: 241434 <br /> Dear Ms_ Duncan- <br /> On behalf of the Union Ice Limited Partner,%hip, the following work is pxvposed to abandon <br /> the five (5) mconituring wells at the sul7jee:t site in Stockton. The planned well abandonment is <br /> the; final step in site clowre, following the Central Valley Regional Water Quality Control <br /> Board's leo-Further Action Letter of November 15, 1999. The field work for well <br /> abandonment will be completed by Hal Hansen of Doulos Environmental, Inc. Mr. Hansen is <br /> a registered geologist and holds a C-57 canuactcors license. <br /> All five tnkinitc)ring wells will be abandoned) in }glace by pressurc: gn)uting with a neat Cement <br /> Slurry. The cement nt slurry will he made by thoroughly mixing approximately 11 - 13 Pounds <br /> of type II Portland cement per galleon of clean. water- The grout will tx:placed in the well with <br /> a tr}rnmie hcase £rc►zrt the botturn of the: well to the surfacee; The estimated volumes of grout <br /> that will be required for each well are presented on Table 1. To calculate the grout volumes <br /> presented on Table 1, the ixorosity of sand in the annular space of each well has been estimated <br /> to be 32t�r,. <br /> TABLE I <br /> Well Casing Drilled. Sounded Drilled) Sand Calculated <br /> No. Diameter Depth Depth Diamete=r Interval Grout Vol. <br /> (inches) (ft) (ft) (inches) (ft-tags) Req'd (gals) <br /> MW-1 4 75 73 r 1€1 est. 51 - 75 74 <br /> 1VxW-2 2 80 71 7.25 55 - 80 28 <br /> MW-3 2 Sl} 74 7.25 54 - 8i) 29 <br /> MW-4 2 $41 71 7.25 55 - 80 2$ <br /> MW-5 7 So 76 8. 57 - S(1 3€).5 - j <br /> 5856 emnite Hills Drive• [ranine day,California 95746 Tel.(916)781-9327-Fax(916) 781-9357 <br />