ARCHIVED REPORTS_XR0010639 - Laserfiche WebLink

Home Browse Search

GROUNDWATER CONTOUR MAP AND GRADIENT A groundwater contour map was prepared for December 26, 1995 from the data listed in Table 1 (see Figure 1) Groundwater elevation contours were plotted from the measurements and plotted to a known datum The groundwater flow was in a northerly direction under a calculated gradient of 0 0046 DISCUSSION Concentrations of TPHG were observed in well MW-1 BTEX components were also observed in well MW-1. MONITORING SCHEDULE The continuation of the quarterly groundwater monitoring program is recommended for this site and is scheduled for March, 1996 STATUS At the time of this report, Wright is in the process of securing all the necessary permits from the PHS-EHD and the City of Tracy to further define the lateral and vertical extent of groundwater contamination Further work is anticipated to be completed by the end of February, 1996 LIMITATIONS This quarterly sampling and report was performed using recommended current guidance documents of the state of California Regional Water Quality Control Board The statements, conclusions, and recommendations are based on present site conditions Conditional changes may occur through time by natural or manmade processes on this or adjacent properties Future review and interpretations should consider regulatory changes that any have been enacted subsequent to preparation of this report Wright Environmental Services, Inc. is not responsible for laboratory errors, and no warranty or guarantee is implied therein If you have any questions concerning this report, please call our Tracy office at (209) 833- 0758 S,��RE Sincerely, ��1ER if V7 Environmental Services, Inc 0 x{01262 V V `�� f�L � CERTIFIED ENGINEERING Lester Messina Christopher M. Palmer GEOLOGIST Project Manager C. E G. 1262 �Q- aF CAufC3 Attachments: Figure 1 Site Map,Groundwater Elevation, Contour Map . Appendix A Groundwater Sampling Information Sheets Appendix B Chemical Analytical Date and Chain-of-Custody Forms