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WORK PLANS_CASE 1
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WORK PLANS_CASE 1
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Last modified
2/3/2020 8:55:20 AM
Creation date
2/3/2020 8:50:54 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
WORK PLANS
FileName_PostFix
CASE 1
RECORD_ID
PR0540905
PE
2960
FACILITY_ID
FA0023406
FACILITY_NAME
SIERRA LUMBER MANUFACTURERS
STREET_NUMBER
375
Direction
W
STREET_NAME
HAZELTON
STREET_TYPE
AVE
City
STOCKTON
Zip
95205
APN
147120808
CURRENT_STATUS
01
SITE_LOCATION
375 W HAZELTON AVE
P_LOCATION
01
QC Status
Approved
Scanner
SJGOV\sballwahn
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EHD - Public
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15 March 2001 <br /> AGE-NC Project No. 98-0448 <br /> Page 2 of 2 <br /> In preparation for well abandonment of EW-1, all material within the original borehole, including the well <br /> casing, filter pack, annular seal, and well cover box will be excavated (over-drilled)utilizing a mobile drill <br /> rig and 15-inch diameter hollow stem augers. Soil cuttings generated during over-drilling activities will be <br /> placed on plastic sheeting and covered in a west section of the site.Rinseate will be containerized in properly <br /> labeled D.O.T.-approved 55-gallon drums, and stored on-site in an area lacking public access. <br /> Following over-drilling activities of EW-1,the borehole will be backfilled with a cement grout mixture to <br /> surface grade.The grout mixture will consist of a nominal six gallon to 94-pound sack portland cement ratio. <br /> The grout mixture will be deployed utilizing the hollow stem augers as a tremie pipe. Based on backfilling <br /> a 15-inch diameter borehole, the volume of portland cement ground mix can be calculated utilizing the <br /> following equation for a cylinder: <br /> V=nr'h <br /> where V is the volume,r is the radius and h is equal to the height of the borehole, therefore <br /> V=n(0.625')(45 ft)=55.22 ft <br /> One cubic foot is equivalent to 7.48 gallons,therefore <br /> 55.23 ft' • 7.48 gal./ft'=413 gallons <br /> AGE anticipates an estimated 413 gallons of portland cement grout mix should be utilized to backfill the <br /> borehole. <br /> Sincerely, <br /> Advanced GeoEnvironmental, Inc. <br /> a� <br /> Timothy V C6611ar <br /> Project Geologist <br /> Enclosures <br /> cc: Mr. Bob Long, Sierra Lumber <br /> Mr. Marty Hartzell, California Regional Water Quality Control Board-Central Valley Region <br /> Advanced GeoEnvironmental Inc. <br />
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