ARCHIVED REPORTS_XR0009103 - Laserfiche WebLink

Home Browse Search

T � � � � 4 Table 1 GROUNDWATER ELEVATIONS AND SAMPLE ANALYTICAL RESULTS Boettcher Western Properties 4555 North Pershing Avenue Stockton, California Well Sampling TOC DTW GWE B T E X TPHg TPHd TPHmo Total Lead Number Date (feet) (feet) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) MW-5 11/19/92(1) 759 3080 -2321 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<500 ND<500 ND<500 76 6/4/93 759 2676 -1917 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<500 ND<500 ND<500 ND<3 0 9/3/93 759 2728 -1969 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<500 ND<500 ND<500 — 12/3/93 759 2687 -1928 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<500 ND<500 ND<500 -- 12/21/94 759 2701 -1942 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<50 -- -- __ 3/13/95 759 2446 -1687 ND<0 5 ND<0 5 ND<0 5 ND<10 ND<50 6/8/95 759 2325 -1566 ND<0 5 ND<0 5 ND<0 5 ND<10 ND<50 8/30/95 759 2462 -1703 ND<0 5 ND<0 5 ND<0 5 ND<2 0 100 12/11/95 759 2453 -1694 ND<0 5 ND<0 5 ND<0 5 ND<2 0 100 -- Notes, TOC Top of casing elevation in feet referenced to mean sea level DTW Depth to groundwater GWE Groundwater elevation in feet(TOC-DTW) BTEX Benzene,toluene,ethylbenzene and total xylenes by EPA Method 8020(modified) TPHg Total petroleum hydrocarbons as gasoline by EPA Method 8015(modified) TPHd Total petroleum hydrocarbons as diesel by EPA Method 8015(modified) ' TPHmo Total petroleum hydrocarbons as motor oil by EPA Method 8015(modified) ppb Parts per billion(ug/1) ND Not detected at or above indicated method reporting limit -- Not analyzed (1) Groundwater elevation data obtained 11/12/92 (2) Groundwater elevation data obtained 9/3/93 Samples collected through 12/3/93 by McLaren/Hart Samples collected since 12/21/94 by Clearwater Group Inc rPage 3 of 3