Laserfiche WebLink
KLE/NFELDER <br /> 8.19�I P MIe.flg�l blWoru. <br /> 4. DISCUSSION OF RESULTS <br /> ' The following sections discuss the groundwater characteristics and quality. <br /> 4.1 GROUNDWATER FLOW DIRECTION AND GRADIENT <br /> The depths to groundwater and groundwater elevations for each water level monitoring location <br /> are detailed on the attached Table 1. Historical groundwater depth and elevation data from <br /> 2001 — 2010 has been archived and can be viewed on previous reports. The groundwater <br /> ' gradients were calculated using 3-point mathematical calculations. <br /> The groundwater in the Plant Area during the first quarter 2014 monitoring event was calculated <br /> to flow to the south, with a gradient of 0.0067 ft/ft. Historically, the groundwater flow direction <br /> has ranged from northeast to southeast. A groundwater contour map for the plant area is <br /> 1 included on Plate 3. <br /> In the first quarter 2014, the groundwater gradient in the N/SALAIA was towards the west, with <br /> a gradient of 0.004 ft/ft. A groundwater contour map for N/ALAIA is presented on Plate 4. <br /> Groundwater flow direction in the MARIA was estimated to be towards the west based on <br /> relative elevations of groundwater in W-1, W-4, and W-5. A groundwater gradient was not <br /> calculated due to the linear orientation of the wells. <br /> 4.2 CHEMICAL ANALYSIS OF GROUNDWATER SAMPLES <br /> 4.2.1 McKinley Avenue Rapid Infiltration Area <br /> Groundwater quality for the three monitoring wells for the first quarter 2014 had the following <br /> ranges of concentrations: <br /> • pH (7.12 to 7.45 units) <br /> • Total Dissolved Solids (810 to 1200 mg/1) <br /> r • Ammonia as Nitrogen (Non-detectable <0.10 mg/I to 0.23 mg/1) <br /> 101486.7/SAC14R0504 Page 8 of 13 April 28, 2014 <br /> Copyright 2014 Kleinfelder <br />