Laserfiche WebLink
• Martin Thorpe <br /> •' � 16 October 1987 9> rvFlss ASSOCIATES ' . <br /> ,,.. gallons were withdrawn fro--m,MW-1, 80 gallons from MW-2 and-60 gallom <br /> ns fro = <br /> .r1 <br /> MW 3: The development—water w ss directed--to=55=gallon-dr-ums—for—tempor-aary - <br /> s'to`rage on site./' -well.. development. field data sheets are kncluded as <br /> Attachment D. <br /> The estimated flow . rates for the three wells are: .1.8 gpm for MW 1,'.1 3 <br /> gpm for MW-2 and 0.8 . gpm for MW-3. Well . yields calculated .:from` airlift <br /> evacuation . are not as accurate- as those from pi.uapzng and may be significantly <br /> less than the potential yield of the well. These flow .rates are within:-` <br /> expected ranges y <br /> for the -soil types screened. . <br /> . <br /> ~. On 13 August' 1987,^ 48 hrs after development, water samples were collected <br /> from the wells and 'a composite sample was collected of the , development water`. <br /> Samples were collected with steam-cleaned teflon bailers and were decanted <br /> into 40-rn1 glass vials, labeled,. . refrigerated and transported. andel <br /> chain=of-custody procedures to B&C for analysis 1 <br /> - B&CCwas�onl� able to analyze these samples for TFMC and EEDB. Therefo <br /> the-we 11's were" T - — 1 - <br /> resampled�by�B&GTon 8 Septemi�er'1987: Prior to. samp ..ing, _:.,B&C <br /> personnel removed approximately 8.5~well volumes of ground water .from".each <br /> well with bailers and a submersible pump. Samples were Chen collected. with <br /> steam-cleaned teflon bailers, were -decanted into 40-m1 glass- via's and were.`' <br /> labeled and. refrigerated for transport to B&C. Copies of B&C chain-of-custody . <br /> .forms are included a in Attachment A and B&C water sampling, data sheets are <br /> included as Attachment E. <br /> ANALYTIC RESULTS FOR WATER SAMPLES. , <br /> Water samples collected on 13, August 1987 were analyzed for TFHC by <br /> GC/FID with a detection limit of 1 ppm and by GC/ECD for EDB with 'a detection .' <br /> limit of 0,6 ppb. Samples collectedaby_B&C on 8 September . 1987 were analyzed <br /> by AAfo soluble lead with a detect on limit of�l PPb'and=by CC/PID`fo'r'BTX x <br /> with-a det-ectian Iimit-of-075TP bi TFHC was-. . detected only in.. watery samples . <br /> from,__we11s �i�IW-ly`a�rd MW=3=at'°l3�ppm"and"14 ppm"respectively: Benzene-wzfs-fo d <br /> L <br /> in all three-wells,-ranging-from-5r0-ppb-in-MW-2.-to-2,800�ppb in`MW-31 -EDB } <br /> i <br />