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2. Riase the turbidity probe vtith deionized water then place in the standard solutior.L <br />3. Adjust the meter for appropriat6 turbidity.scale then read the turbidity. <br />4. If required use the "calibrate" adjustment on them to correct the instrument to read <br />the correct turbidity. <br />The calibration Process will be recorded on a turbidity calibration 1,09. A Sample Calibration <br />Log is located in Appendix C Copies of calibration logs for each h4vidual instrument are kr�t <br />in a binder at the office. The logs are reviewed periodically top assess whether the instrument is <br />becoming -more difficult to caDrate and therefore needs adjusoent by the manufkctui;er, or if <br />Y ew probes art: reqgired. <br />To redime the potential for introducing contaminants or cross -contaminating samples, samp <br />equipment that is used repeatedly at diffmnt wells (m -line: Mter. matecs) will be Wnished in <br />ftisodium. phosphate solution and tdple rinsed with deloni=d water pdor to -use. in each <br />The monitoring wells am equ4xd with dedicated-sarnpling -systenm vddch-.-wifl not, <br />docontamination. Sterile factory scaled disposable bailers used to collect the samples. <br />cord is replaced between each well. <br />MbZ itoring: Order <br />Groundwater vacrutoring will be conducted such that depth to water.mea=cmeats and sarapfing <br />is <br />Measurement land pedormed in the least wells fust.(based on bistorical results). <br />sampling order will dm move from Les= pp a' wells to the most ir� welLs. This is <br />done to reduce the potentiai ffi2t wensand samples am be cr= contarnfimted. Groundwater <br />manitoringorder begins at MW -20 and then MW -12 -which the &*graund welts, Ue Ma <br />welL%'fisted in order, to be- sampled am MW -15, -10. -1 and -3.. These wtUs rarely contain <br />evidence of chemical The last Wells to be -sampled, listod in ordeinchide JAW -14,43 <br />Impacts <br />Md '-,2- Proposed well 16 will be sainpled in an a�proptiatc order &?=fing on wbat <br />ccusdtu� are detected (if any) in the well upon the first sampling. bitially, MW -16 will -be <br />23-4939*-MIUMORM <br />OwrWw 2M VeWddw tv- <br />M <br />