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Kleinfekler to conduct the ground wme,sampling. The following is a report of findings <br /> from the ground seater assessmem. <br /> GROUND wA9ER SASIPLING <br /> t <br /> t' On March 20 to 22,1990 water levels were measured and ground water samples were r <br /> A - coIlected from the eight monitoring wells at the Guild Wasay site.The monitoring wells <br /> were purged by using a 4-inch submersible pump- Silt to hlw-1,NhV4 and MW-7 <br /> rendered the pump inoperative so these wclis were purged snnh a Tenon©.iter. While <br /> purging the wells,ground wale,Feld parameters(pil,conductivity,and temperature)were <br /> me ed. Samples were collected after three well volumes were collected mid Geld <br /> (_ <br /> parameters appeared idstabilin, The waier samples were collected using-a din osahle; parame pp p 8 p <br /> hailer and contained in three 40 ml containers supplied and prepared by the laboratory.A ` <br /> duplicate sample was collected at MW-1 and a bhrk sample eyps collected before Initiating !' <br /> sampling activities- The sample containers were immediately sealed after sample ? <br /> ., collection and placed in en iced cooler, _ <br /> Y, Purge equipment was steam cleaned or washed in-a trisodium pbospLare solution and ;1 <br /> rinsed in distilled water prior to use in each monitoring well, }yore,generated during I.'. <br /> purging of MW-I,Mw-2,MW-4 and,MAV-7(in the vicinity f the a cavated tank)was I; <br /> stored in 55 gallon dorms and left on site.Purge water tram the other wells was discharged'` 1( <br /> Yl in the ground- „ <br /> d <br /> 'Ihowater samples were delivered under chainwof-ruslardly to EnsecoAnIlyical Laboummy, 4{ <br /> s a laboratory EVA/State certified for the analysis performed.-The samples were analyzed h <br /> fortetai petroleum hydrocarbons(TPH)purgeable by GCJFiD on aregular turn around , •� <br /> schedule. <br /> RES tr T$AND M\CLUSIONS <br /> I <br /> GROUND A4'ATER GRADIENT <br /> Gtound water elevations ranged from 20.62 feet mean sea level(MSL)to 25.53 feel. t <br /> U- G d water appears to.flow to the southeast,south and southwest Item MN-2 with a <br /> lilt gradient of approxtmalety 1,9 Wo to the southeast and 0.4%to the southwest. Thii ground <br /> ,.� :5-90-129 2 - <br />