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1 Ii�i�1#707 �(3 Bh1 4 i In]IouIII it Rt iilerh II 1 t Isibil11 E ,t Kcpot 1 E c In n i i ti 1 , ' (J) ' 800C mechanical flow meter was installed in-line (at the ground surface) on the pump discharge hose to measure the total purge gallons extracted from the well I ' The MW-6C pump test lasted approximately 20 hours A total of approximately 2,493 gallons were ' purged from MW-6C during the 20 hour period which equates to a pumping rate of approximately 2 gallons per minute or 125 gallons per hour At periodic intervals during the pump test, Blaes ' Environmental monitored the water levels in extraction well MW-6C and surrounding monitor wells MW-6B, MW-9B, MW-2C, and MW-2B using a Heron groundwater level meter Static groundwater ' levels recorded during the MW-6C pump test are provided in Table 9 After approximately 20 hours of pumping, the maximum draw down (as measured with the Heron water level meter) in the extraction ' well (MW-6C) was measured at 1 18 feet (Figure 9) The maximum elevation change as measured by the Solinzst level loggers equated to approximately 125 feet in extraction well MW-6C and ' approximately 0 23 feet in monitor well MW-6B (located approximately nine feet from MW-6C) ' At the conclusion of the pump test, the data loggers were removed from each well and subsequently connected to a laptop computer for data transfer The transferred data was analyzed using AQTE50LV ' software according to the Theis (1935)method for pump tests in unconfined aquifers Results of the data analysis indicated a transmissivity of 0 01615 ft2/minute and a storatyvity of 1 x 10-10 This equates to a ' hydraulic conductivity value of approximately 2 6 x 10-4 cm/s This hydraulic conductivity value corresponds with a soil type of silty sand, which relates (in general) to the soil types described in boring ' logs from drilling activities conducted at the site A copy of the data analysis derived from the AQTESOLVE software program is included in Appendix H ' 4 3 2 MW-3C Pump Test On November 21, 2002, Blaes Environmental began the MW-3C pump test Prior to commencing ' groundwater pumping, a Solmst data logger was installed in the extraction well in order to monitor static groundwater level changes Additionally,a second data logger was placed in monitor well MW-4C The ' Grundfos pump was installed at approximately 65 feet below the top of the MW-3C well casing The Fill-Rite Series 800C mechanical flow meter was again installed on the pump discharge hose to measure ' the total purge gallons extracted from the well ' 15