Laserfiche WebLink
Table 1 <br />Maritime Laydown Site Wells/Piezometers <br />Well or <br />Piezometer <br />ID <br />Associated Site <br />ID <br />Installed By and Status Date Installed <br />Unknown Kleinfelder 8/18/86 <br />.6 <br />Ground Water <br />Elevation <br />i (2/14/11) <br />- <br />Ground <br />surface <br />Elevation <br />Top of <br />Casing <br />Elevation <br />Screened <br />Interval <br />Filter Pack <br />Interval Last use Reason for removal <br />(fe-eotm1sI) (feet MSL) (feet MSL) (feet bgs) (feet bgs) <br />P-101 7 2.5 4 5.18 3.0 to 13.0 2.5 to 13.0 2000 Within project footprint; site closed, poor construction (see note 1); condition unknown. <br />P-102 7 Unknown Kleinfelder 8/28/86 nm 1.86 6.53 5.0 to 15.0 3.2 to 15.0 2000 Within project footprint; site closed; poor construction (see note 1); condition unknown. <br />P-104 7 Destroyed Kleinfelder 8/29/86 nm 0.05 5.1 5.0 to 15.0 2.510 15.0 1999 NA <br />P-105 7 Unknown Kleinfelder 8/29/86 -4.24 0.07 2.95 5.0 to 15.0 2.5 to 19.0 2000 Within project footprint; site closed; poor construction (see note 1); condition unknown. <br />P-179 IAS-08 Unknown TtEMI 5/29/98 -5.07 WA -1.84 5.0 to 10.0 4.5 to 11.5 2000 Site closed; condition unknown. <br />W-13 NA Unknown Kleinfelder 11/5/86 0.44 4.99 6.49 3.0 to 13.0 2.0 to 14.0 2000 No IR Site; condition unknown. _ <br />W-120 IAS-08 Unknown LFR 11/21/97 -4.37 -2.05 -2.48 10.5 to 14.2 9.0 to 15.0 2000 Site closed; condition unknown. <br />W-32 lAS-08 Unknown PRC 11/12/92 -5.41 -2.93 -2.5 10.0 to 15.0 9.5 to 15.3 2000 Site dosed; condition unknown. <br />W-234 7 Unknown LFR 4/20/99 -5.02 -2.95 -2.47 11.0 to 16.0 9.010 16.0 2000 Within project footprint; site closed. <br />W-235 7 Unknown LFR 4/20/99 -5.12 -2.9 -2.78 20.5 to 25.5 18.5 to 25.5 2000 Within project footprint site closed. <br />Notes: <br />1 <br /> Monitoring wells installed by Kleinfelder have stainless steel-wrapped screen and stainless steel risers. Complete well construction details are provided in the "Verification Portion of the Confirmation Study, Final Draft Report, <br />Naval Communication Station, Rough and Ready Island, Stockton, California. Volumes 1 through 5." (Kleinfelder 1988). <br />2 Piezometers installed by Kleinfelder are 1" PVC pipe hydraulically pushed into the soil, and completed with a seal in the upper 3 feet. Complete well construction details are provided in the "Verification Portion of the Confirmation <br />Study, Final Draft Report, Naval Communication Station, Rough and Ready Island, Stockton, California. Volumes 1 through 5." (Kleinfelder 1988). <br />Monitoring wells installed by LFR have PVC screens and risers. Complete well construction details for W-86 through W-156. W-209 through W-221, and W-231 are provided in the "Remedial Investigation Report Operable Unit 1, 3 NCTS Stockton, California" (TtEMI 1999b) Details for W-232 through W-312 will be provided in the upcoming Operable Unit 4 remedial investigation report. <br />4 Monitoring wells installed by TtEMI have PVC screens and risers. Complete well construction details are provided in the "Remedial Investigation Report Operable Unit 3, NCTS Stockton. California" (TtEMI 1999a). <br />Monitoring wells installed by PRC have PVC screens and risers. Complete well construction details are provided in the "Site Investigation Report, NCS Stockton, California" (PRC 1994). the "Technical Memorandum for Additional <br />5 Investigations at Sites 5A, IAS-9, and IAS-11 and Monitoring Well Decommissioning' (PRC 1996b). the "Technical Memorandum for Site 39, NCS Stockton, California" (PRC 1996c), and the "Technical Memorandum Limited <br />Investigation Site 3, Site 4, and IAS-11, NCS Stockton, California" (PRC 1997b). <br />nm not measured <br />bgs Below ground surface <br />IAS Initial Assessment Study <br />LFR <br />LFR Levine-Fricke <br />MSL Mean sea level <br />NA Not applicable <br />TtEMI Tetra Tech EM Inc.