Laserfiche WebLink
rHA nu, eumgbub?-1 <br /> V. U8/09 <br /> RkEINIPELDER <br /> APPENDIX A <br /> KUHNFFLDER FIELD PROTOCOL <br /> A-1 FIELD PREPARATION <br /> B,60re Pkmoor mg work in the field, enviropmental staff review the stupe of work, prepare a <br /> hEYalth and safety plan, if requested, coordinate the work to be done with their supervisor, <br /> assemble the rtecess ary satrlplc corztainers, and check, calibrate and clean equiprrxent to be used in <br /> ±h� field. '�Vhri� underground utilities may exist at a site where subsurface soil saxtzples are heirg <br /> collected. <br /> A­2 GROUNDWA,'1,"ll R moNITORING <br /> }.)< IYianiiot•ing Well Develaptnexrt and Sampliog <br /> Tile wells are d+.veloped to reduce the effects of drilling oz' the formation and to increase the <br /> e5cctive hydfaudc radius of the well. <br /> Morito.rirtg 'w'ells are generally developed 24 to 48 hours after installation to allow the grout to <br /> ,%-i. Each well is first swlipled with a clear acrylic bailer to visually inspect for hydrocarbon <br /> layer or sheer., if no product layer or sheen is observed. on the water, the well is developed by <br /> sut-&M& larrrrlping, or Wiling, Surging along the screened intmal of the weU is performed to <br /> draw the sedimeat from the folrination into the MW pack and the well and to set the sand pack- <br /> U')1+-, sedirtaent laden water is g <br /> pw -d frout. the woll at a rate of between 0,75 to 10 gallons per <br /> rnute (gpm) depe:ndita,g 4n mcharge rate and casing size, Developmeut continues until the <br /> discharge runs retntively clear of fines. Approximately 5 to to well volumes are geaexaXly <br /> rarucved fmm each Monitoring we1L Discharge water is stored in 55-gallon drums and left on <br /> sits;far later tiiscbarge.or disposaj by the client,depend-xng on laboratory.results. <br /> Alter the wells ave developed, the aquifer is allowed to equilibrate for at least 24 to 48 hours. <br /> The wells can then be- purged and sampled. Puzging and sampling may be accomplished with <br /> I efJon bladder pumps aod/vr bailers. Turing the purging of the wells, field parameters (pH, <br /> ccsnductivity, and temperature) are monitored. Samples are collected after the field paramct4=s <br /> have stabilized (uwmally requiring the removal of three to five well volumes). Rater sampling <br /> watainers etre supplied and prepared by the laboratory. These sample rorxtainers are immediately <br /> sealed after sample Cc,llection 811.d placed in an iced cooler. At the cnd of the day, the water <br /> samples are delivered+.aider chain-of-custody to an analytical laboratory certified by the state for <br /> the planned chl<rniral apalysis. <br /> A-2.2 Sample Ba-ndlirtg <br /> ARc;r labeling, the sample is iinmediately stored in an iced cooler far transport to the analytical <br /> lateratory_ 'Etre label includes Meinfelder`s name,job number,the date and tii a the sample was <br /> collected, the cmployce number of the individual who performed the sampling, and a unique <br /> fivrAigit sample identification number. A custody seal is also placed on the sample in such a <br /> way that a.ny a terupt to tamper with the sample is easily visible. An example of a sample label <br /> and custody seal are attached at the end of this appendix. <br /> A Kleinfelder form is attached to the cooler. The chain-of-custody form <br /> iijdudes Klei&elder's ramie, address and telephone number, the employee number of the <br /> 2cj.YA4094/CP95{)()46(11}95? Page B-t March 21, 1995 <br /> Cupyright: 1995 K1cinfpJ y,,Iris. <br />