Laserfiche WebLink
' - conductivity or temperature or <br /> • vary by more than 10o for the cond y P <br /> 0 . 1 on the pH reading then step C is repeated until the readings <br />' are within the limits . <br /> D) The well will be allowed to recover to so% of its original <br />' volume or 2 hours have passed (remeasured) then a sample will be <br /> withdrawn and placed in a the appropriate sample bottle supplied <br /> by Sherwood Laboratories of Hilmar California . Sherwood Labs <br />' supplies the sample vials with the proper amount of Hydrochloric <br /> Acid in each bottle, so no further acid or any other chemical <br /> should be added to the water. The bottles will be placed on ice <br /> in a cooler and kept on ice until delivered to the lab or turned <br />' over to their courier within 48 hours of the sanpling time. <br /> Purged water will be placed in a sealed drum and left at the <br />' <br /> site . The drums will be labeled for the scurce cf the water. <br /> After the chemical analyses are completed the contamination in <br /> each drums will be assessed. If the chemical analyses of the <br />' water in a drum shows the water to be free of contamination then <br /> this water will he disposed of as clean water. Ccntam nested water <br /> will he removed from the site by a licensed wast=_ hauler. <br />' Water samples will be taken from the water at cr near tae suriGce <br /> of the water tanle, unless otherwise indicated. The cartaine=s <br /> will he filled sc that zero headspace is present in the sealed <br /> v_a1 tercra placing in tae cccler. Trip blanks will accompany <br /> all sanole containers . A Chain of Custcdy will he filled cut by <br /> tie sampler. The cne liter brown bottles fcr T�L-d;esel nest + <br /> have a small 40 to 60 M1 of headspace, if nct the tattles will <br /> break during trans=crt.The tests run will be as follows : <br /> Test Detection <br /> Limits <br /> DHS TFH Method (Gasoline) /(Diesel ) 50 uc/L <br />' EPA 602 for <br /> Benzene 0 . 5 u /L <br /> Toluene 0 . 5 ug-/L <br /> Ethyl Benzene 0 . 5 uc/L <br />' Xylenes 0 . 5 uc/L <br /> All laboratory results , well measurements and the Chain of <br />' Custody must be sent to our office for evaluation and the <br /> preparation of a report. <br />