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BQ — non-linear head loss S = drawdown at a given time Q discharge rate P — a discharge rate dependent value between 1 5 and 3 5 A and B are constants A value of 2 for P is commonly accepted in this equation (Ramey, 1982), which yields the equation: s = AQ + BQ2 (Equation 2) or dividing by Q s/Q = A + BQ The latter equation represents a straight Line on an s/Q versus Q plot (Figure 1). Using the approach of Jacob as oudnned in Todd (1980), the data indicate a negligible non-darcy (non- linear) component of the drawdown The least squares best fit line shown on Figure 1 yields the following relationship between drawdown and pumping rate: s = 1.93Q - 0.09Q2 Typically the coefficients (A and B) calculated from the best fit line shown on Plate 1 can be used to calculate the well efficiency for various times and pumping rates. However, for the subject test the data would indicate an efficiency greater than 100%. This probably indicates either, (1), the well is nearly 100% efficient and the negative slope on Plate 1 is due to imprecision in the data, or (2), the well was still undergoing development during the test. Low well efficiencies are common in unconfined aquifers when drawdown encompasses a sngnnfncant portion of the saturated screen thickness. This is due to the partial penetration effect which induces steep vertical flow gradients in the vicinity of the well screen. However, because of the low pumping rate, relatively small drawdown, and the well construction consisting of a 6 inch diameter, wire wrapped screen, it is likely that turbulent flow losses were negllgrble for this well test Test Results: Lang-Duration Constant Rate Test Well drawdown versus time plots (both log-Iog and semdog plots) were prepared for pumping well RW-1 and observation points PZ-1, MW-1 and MW-3 (Figures 3 through 9) uttltring the AQTESOLV software (Geraghty and Miller, 1990) Figure 10 presents the drawdown in PZ-1, MW-l and MW-3 after 1420 minutes of pumping versus their respective distances from the Pumping well (RW-1)