ARCHIVED REPORTS_XR0003824 - Laserfiche WebLink

Home Browse Search

GeologiculTahnres Inc Page 6 ' Groundwater Monitoring Report Project No 7702 . October 15,2002 ' Well MW-5 continues to contain the highest concentrations of detected contaminants (see Figure 6) but it has not been down gradient of the former UST location for the seven monitoring events completed by GTI to date The reason for this anomaly is not known, but could be related to geologic units that slope to the west Similar to MW-5, the deep well diesel distribution (see Figure 7) contains an anomalous node near MW-105 A comparison of diesel concentrations in well pair MW-5/MW-105 versus groundwater , elevation reveals a pattern consistent with the difference between MW-4 & MW-5 noted do-A� above In Figure 8 — MW-5 & MW-105 TPH-D versus Groundwater Elevation, well MW f4)V yrL S contaminant concentrations correlate with changes in the water table Well MW-105, � screened below the water table, exhibits an inverse relationship between contaminant ' concentrations and groundwater elevation GTI makes the following recommendations • Continue quarterly groundwater monitoring for determining direction and contaminant trends • Perform monthly groundwater level measurements for one year 3.0 LINIITATIONS This report was prepared in accordance with the accepted standards and practices of the field of environmental geology, groundwater hydrology and good business practices It should be recognized that definition and evaluation of environmental conditions is a ' difficult and an inexact science Judgments leading to conclusions and recommendations are generally made with an incomplete knowledge of the site-specific conditions present The tasks proposed and completed during this project were reviewed and approved by the local regulatory agency for compliance with the law No warranty, expressed or implied, is t made