ARCHIVED REPORTS_XR0012911 - Laserfiche WebLink

Home Browse Search

{' Table 1. Water-Level Elevations ARCO Facility 2093, Tracy, California a � i Top-of-casing Depth-to- Floating Water-level Change since Well number elevation water product elevation last measurement t and date (feet)(a) (feet) thickness,(feet) (feet) (feet) 8131/93 9.38 -- 37.46 -0.91 10/27/93 i 9.31 -- 37.53 0.07 2118/94 8.83 -- 38.01 0.48 5/20/94 8.93 -- 37.91 -0.10 1017194 9.34 -- 37.50 -0.41 12/16/34 8.91 -- 37.93 0.43 ATR-12 10/16/90 47.08 -- -- -- -- 10/19/90 9.33 -- 37.75 -- 1/10/91 9.16 -- 37.92 0.17 4110191 '� 8.98 -- 38.10 0.18 7112191 9.28 -- 37.80 -0.30 9124191 9.52 37.56 -0.24 1/23/92 9.06 -- 38.02 0.46 4120/92 9.00 -- 38.08 0.06 718192 9.21 -- 37.87 -0.21 'l 10/7/92 9.32 -- 37.76 -0.11 1118/93 8.32 -- 38.76 1.00 4/14193 �� 8.79 -- 38.29 -0.47 8/31193 9.39 -- 37.69 -0.60 10/27/93 ;i 9.36 == 37.72 0.03 2/18/94 9.02 38.06 0.34 5/20/94 9.06 -- 38.02 -0.04 10/7/94(f) -- -- -- -- 12/16/94(f) -- -- -- -- E SMW-1 50124 10/7/94 11 12.86 -- 37.38 -- IV16/94 12.54 -- 37.70 0.32 E I - (a)All elevations have been corrected to an arbitrary datum based on a temporary on-site benchmark with an assigned elevation of 50 feet. (b)Well could not be Ihlocated due to recent parking lot repaving. (c)Top of casing well has been damaged. Water-level measured from the highest point of well casing. (d)Depth to water ford these dates reported incorrectly in quarterly reports for October 1990 through July 1991. (e)Well was inaccessible due to on-site construction activities. ,P (f)Unable to open lid'. NOTE: The water level elevations in this report cannot be compared with any reports ., prior to March 1991 due to the correction to the arbitrary datum. However,these { corrections should not change any previous contour maps. f'