Laserfiche WebLink
Kennedy/Jenks Consultants <br /> Groundwater elevation and water quality temporal and spatial trends will be analyzed for the <br /> existing and two additional monitoring wells. These analyses are based on time versus water <br /> levels and concentrations plots such as those in Figures 5 through 12. In addition, isochron <br /> (contour) maps will be evaluated to identify spatial dependency or environmental source area(s) <br /> influences. <br /> Proposed onsite and offsite investigations will attempt first to clarify upgradient and <br /> downgradient variations of water quality. Historical and new data will be used to explain <br /> differences in hydraulic gradients pertaining to upgradient flow into the site and groundwater <br /> flow out of the site and into downgradient shallow groundwater zones. This hydrologic <br /> evaluation is an important component to support discussions on groundwater quality as related <br /> .. to offsite and onsite activities. <br /> 2.6 Onsite Activities <br /> A"reverse" order of boring installations for proposed continuing onsite investigations will be <br /> conducted. Instead of utilizing cone penetrometer testing (CPT®) method as exploratory soil <br /> probes as a guide to siting monitoring well locations, CPT/HydropunchTm data will be gathered <br /> after installation of two new wells and on an as-needed basis to supplement the spatial trend <br /> analysis of constituents in soil and shallow groundwater. <br /> 2.6.1 Proposed Onsite Monitoring Wells <br /> _ Two additional monitoring wells will be installed (MW-4 and MW-5)to further define groundwater <br /> gradient and the spatial distributions of constituents of concern (CDCs). Figure 14 illustrates the <br /> three existing monitoring wells and the two proposed monitoring wells onsite. The five wells will <br /> have equal separation distances of about 3,000 feet. The equal distances can augment the <br /> interpreted relationships between concentration gradients (e.g. isochrons of TDS and sulfate <br /> levels) and potential surface discharge points and groundwater flow directions. <br /> These additional monitoring data can also support the interpreted relationship between onsite <br /> and offsite (up-and down-gradient)groundwater characteristics. This analysis will be primarily <br /> based on integrated contour maps of onsite and offsite groundwater gradients and water quality <br /> data. <br /> 2.6.2 Other As-Needed Onsite Activities <br /> CPT soil probes will be installed on an as-needed basis after the installation and sampling of <br /> two additional wells onsite. Data from the use of Hydropunch'"' groundwater sampling as part of <br /> .. the installation of each CPT can supplement the concentration gradients (contour maps) initially <br /> constructed with monitoring well data. The approximately eight (8) CPT points shown in Figure <br /> 14 are currently planned on a location-by-location basis to supplement the depiction of spatial <br /> variations in groundwater CDCs. The locations of CPTs are also spaced in about equal <br /> distances from each other and from monitoring wells. Combined data sets will provide a <br /> statistically sound data set to perform parametric analysis of variance; specifically ANOVA tests <br /> .. on upgradient and downgradient groundwater quality influenced by a particular source, regional <br /> nature, or due to site activities. <br /> Groundwater Protection Work Plan, The Wine Group Page 2-5 <br /> Franzie Winery, Ripon, California <br /> �'s-=u�"eiybni�3dt1^..61_rn'ppc+.q;J3epatMrmiylanfi:aL=xlAoc <br />