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unconfined condition The aquifer thickness is assumed to 5 95 feet, the distance from the static <br /> water level to the bottom of the pumping well This aquifer thickness is assumed to apply at all <br /> four o wells from which interpretable data was obtained The apparent thickness of the <br /> observation rP <br /> saturated materials varies from day to day, depending on the depth to the top of the saturated <br /> materials <br /> 42 Water Bearing Formation Characteristics <br /> The log-log drawdown graphs presented in Attachment C in Figure Cl to C7 are presented so <br /> that the data can be rapidly compared to available type curves Pump test analysis theory is not <br /> strictly applicable at the pumped well and therefore will not be applied to the pumping well data <br />' (Figure Cl) The hydrologic characteristics of the responding observation wells (Figure C2 N W- <br /> 5, Figure C3, P-3, Figure C4, P-5, and Figure C5, P-2) are interpreted in this section The <br />' response at wells P-4 and P-1 is not adequate for interpretation from a 1,000 minute aquifer test <br /> at their distances from the pumping well The available curves indicate that interpretable data <br /> would be available after in excess of 5,000 minutes for these wells <br /> Type curves contained in Kruseman, de Ridder, and Verweij (1990), Lohman(1972) and standard <br /> text references were examined to select appropriate type curves for determination of <br /> transmissivity and storage coefficient <br /> The type curves selected for analysis of the early time data available from this constant rate test <br /> were those for anisotropic unconfined aquifers experiencing an elastic response Late time data is <br /> not availableas this would have required continuing the constant rate test for an additional four <br /> , <br /> 1 to five days In addition, the response in the observation wells is obscured by other drainage <br /> phenomena, boundary condition effects, or minor variation in discharge rate (power fluctuations <br />' and response to nearby pumping wells) Partial penetration effects were not considered in this <br /> analysis Actual type curve matching was performed using the software Graphical Well Analysis <br /> Package (GWAP, version 2 36) developed by Groundwater Graphics, Inc of Oceanside, <br /> California <br />' H2 0 GE 0 L A GROUND WATER CONSULTANCY <br />