Laserfiche WebLink
WELL INSTALLATION SHEET Page.1.of I <br /> SNR COMPANY•Laguna Hills, California <br /> Well Number: D M W - 1 A Ground Surface Elevation: Top of Well Casing (Elevation): <br /> Project Name: Kearney - KPF Project Number: 8 2 9 <br /> Field Engineer/Geologist: A. Brown Date:3 /1L_ L-Checked By: Date: <br /> 87 on <br /> Boring Number: DMW-1A Date Drilled: 10116-211 Contractor:Spectrum Exploraa-Use of Well: Monitoring Well <br /> Date of Installation: 10/21-24/87 Grouting: 11/11/87 Protective Cover: _11/12/87 <br /> Well. Summary Specifications <br /> Item Distance Above/Below Description and Date of <br /> Ground -Surface (Feet) Materials and Installation <br /> Inner Casing Top: = 40.0' Bottom: 220.0' 6" I.D. Sch 80 PVC Blank Casing w/stainless <br /> steel screw and teflon a seal, <br /> Outer Casing Top: + 0.2' Bottom: 26.7' 14" I.D, Sch 40 PVC Blank Casing with <br /> Protective Cover Top: N/A Bottom: N/A N/A <br /> Borehole Fill Materials: <br /> Grout/Slurry Top: 0,0' Bottom: 40' 25:1 cement to bentonite ratio. <br /> Bentonite Top : = i73' Bottom: 178.5' 2 5 gallon buckets bentonite pellets <br /> Sand Pack/Filter Material Top: 178.5' Bottom: 220.0' 15 100 lb. bags #12 Silica Sand <br /> Blank Casing Above Screen Top: = 40.0' Bottom: 199.1' 6" I.D. Sch 80 PVC Blank Casing w/Stainles <br /> e <br /> m Perforated Section Top: 199.1' Bottom: 219.1' 20 Slot 6" I.D. Sch ,55 Stainless Steel <br /> w Blank Casing Below Screen Top: 219.1' Bottom: 220.0' 6" I.D. Stainless steel cap. <br /> Including Bottom Cap <br /> Grout for Outer Casing Top: 0.0' Bottom: 26.3' 12 94 lb. bags Type II Portland Cement <br /> Bottom of Borehole (Depth): 246.0' <br /> Notes/Calculations/Weil Development VISUAL WELL SUMMARY <br /> Ten stainless steel centralizers spaced 20' <br /> apart were installed. 0.2`A.G.S. <br /> Hole caved 10/22/87 after sand pack and QaO` 14" I.D. Sch 40 PVC Blank <br /> bentonite pellets had already been added. An ° CU Casing <br /> attempt to remove all 6" casing from theo �.P.° <br /> (>:: 16" diameter borehole <br /> hole resulted in the casing breaking off 25:1 Cement to <br /> 26.7' B.G.S. <br /> approximately 40 feet below ground surface. Bentonite Grout <br /> Hole was abandoned 11/11/87. The hole a Q:Q a• <br /> collapsed around the 6" casing up to the <br /> point where the casing had broken. A ; : 401± B.G.S. <br /> tremie pipe was utilized to grout the inner <br /> Natural Soils .. INS <br /> : : <br /> casing, which had remained open, up to =40' <br /> 6" I.D. Sch 80 PVC Blank <br /> and to grout the hole up to the surface. <br /> Casing <br /> 10 5/8" diameter borehole <br /> .Q 173't B.G.S. <br /> Bentonite Pellet Seal o:. <br /> 20 Slot 6" I.D. Sch.5S::: 178.5' B.G.S. <br /> Stainless Steel Scree <br /> 199.1 ' B.G.S. <br /> #12 Silica Sand Pack 219.1 ' B.G.S. <br /> 220.0B.G.S. <br /> A.G.S. Above Ground Surface <br /> B.G.S. Below Ground Surface NOT TO SCALE <br />