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2. Rinse the turbidity probe with deioaized water then place in the standstd solution, 3. Adjust the meter for appropriate turb'dsty.scale then read the turbidity. . 4. If requimd use the "calibrate" adjustment on the meter to correct the instrument to read the correct turbidity. ' e calibration process will be rded on a turbidity cahi 'on log. A Sample CablMdon Log is located in Appendix C. Copies of calibration logs for each individual instrument arc kept in a binder at the office. The togs we ravicwed periodically tap assess whether the instn=ent is " g more difficult to calibrate and therefore needs 4ustment by the ufa , or if new probes are requirc& Fkluiliament Deco tion To ice the potential for introducing co is or-cross-contam naiing saznpie_s,.sampling equipment that is used repeatedly at diffescnt wells (in-line Mari Mete s} wiH be Vnished in a trisodium-phosphate solution and trWIc nn=d with d.=om d water prior to-use.in -well: The Monitonng wells ate equipped with dedicated sampling s-which-:t M not-require � deco tion,. Sterile factory seated disposable bailers are used to collect the sainplM Bailer is replaced between each well. MoVitodag Order GroundwMer monitoring will beconducted such.&at dVth to water measurements and - is performed in I contaminated first on bistati+cal ). - cartand sampling -order will hien move from lesscr iWactedto the most impacted walls.. Ibisis done to ztduce the potential ffiat wells and samples can be cuss contaminate& Groundwater. monitoring order begins at 20 and then MW-12,which are the background welts. Ile ziml wells.-listed in order, to be sampled are -15, -10, -1 and -3.. These was rarely contain - 'dence of chemical im . The last wells to beesampled,listed in order,include MW.14,.-13 and '-,?- ' Proposed well 16 will be sampled in an xpproorder depending on Wbat Constituents an detected{tf any) in the well upon the Ini ' y, -16 wM-be the lastwell sampled.. . } 234'93949401U3�1},OyR325 A"5 14,2000