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ME }ianitorin Well Uevelo ment set for a wel' gc.at had developed. .-� lggl after the monitu wen9 s were properly surging on June 28, ��o , the monitoring ur in each well. g, minimum of he by surging and p g g 1_1/2-inch outside The wells coed byveloped an extension of clearer the well water was performed by e into the well and displacing six well casing diameter PVC pipe A roximately well. The through the screened inter um�ed from each monitoring volumes of water were then Q P five gallons per using a series submersible electric pump• water' was pumped s at a rate of approximately five minutes Groundwater was pumped was pumped dry (approximately ly pro] erly minute until the well containerized on site in per weil) . Development water was The waker was disposal method. _gallon DOT 1� drums. Proper disp labelled 55-g pro per disposal of until analytical results indicates dehfo r the p Arrangements are currently being the development water. with ment was thoroughly steam-cleaned anossibility of Development equip order to reduce the p deionized water before re-use in wells. cross-contamination between monitoring ' Gro�undwater Sam .lin9 sed after the after a minimum of 72 hours had W21Ps MW-1► MW-2r on July 17, 1991, monitoring casing volumes in wells had been developed, um ed ,• monitoring ur ad of a minimum of four wellThe purged water wasp P and MW-3 were p g 1Tn roved drums, along with preparation for groundwater Sampling- g app } 55-gallon, open head, water, and stored on-site. into 55-g development previously recovered to groundwater was the depth resentr was Youndwater sampling. roductr if P Prior to g- floating P the field parameters measured, and the thickness of Of the wells, During the purging temperature were monitored. If determined. and temp ed water, a field H electrical conductivity,were nroted in the purged °f du odor or sheen parameters had been observed to product After the field P water was purged from each notation was made. prior stabilize and the minimum volume o the wells were allowed to recover to a minimum of 80� P well, groundwater sample$• to the collection of g g a transparent The first groundwater samples were collected t 'k presence bailer. gam les. The groundwater in the bailer b The clear bheler �nabled us to check for the PVG product in t lass VOA -)ottles and capped of floating P 40-m1, glass The remaining samples was then slowly poured into 2 and the s with teflon gee teflon bailers amber with plastic screw top disposable 1_liter were collected by using oured into 4 teflon were slowly P s with groundwater samples ed with plastic screw top vials W"' ling bottleA and capped sample, thQ bottles/ the same upon collecting bubbles were noted, _. septa. _...... . bubbles- inverted ubbles. If. 10 wan obtained. . aw hamp _...... invertewasndiscarded and a n... . sample PAGE 11 275 GRANT LINE ROAD