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1680 Durham Ferry Road, Tracy, CA <br />GROUT CALCULATIONS <br />MW-3 <br />A B C D E F G H I J K L M N 0 ••- CM V') N:1" U, • Standard Well - - - <br />pi <br />radius <br />(ft) <br />radiusA2 <br />(ft^2) <br />height <br />(ft) <br />I - <br />- <br />radius in <br />inches <br />Volume <br />(ft^3) <br />Convert <br />ft^3 to <br />gals. <br />I <br />Volume <br />(gals) <br />Total <br />Filter <br />pack vol. <br />(gals) <br />Filter <br />pack <br />porosity <br />Effective <br />Filter <br />pack Vol. <br />(gals) <br />Total <br />volume <br />(gals) <br />Actual <br />Grout <br />Used <br />(gals) <br />6 Casing Blank adjacent to sealing material 1 3.1415 0,0833 0.0069 1 0.02 7.48 0.16 0.16 <br />7 Casing Screen & Blank adjacent to filter pack 1 3.1415 0.0833 0.0069 15 0.33 7.48 2.45 2.45 <br />8 Borehole Filterpack 4 3.1415 0.3333 0.1111 16 5.58 7.48 41.77 39.33 0.30 11.80 11.80 <br />9 Borehole Filterpack Below casing 4 3.1415 0.3333 0.1111 0 0.00 7.48 0.00 0.30 0.00 0.00 <br />10 Borehole Mushroom cap 10 3.1415 0.8333 0.6944 1 2.18 7.48 16.32 16.32 <br />11 30.73 <br />12 <br />13 <br />14 <br />15 Casing Blank = Length of Blank Casing Adjacent to seal/grout backfill <br />1 <br />(do not include 5 'length to be drilled out) <br />16 Casing Screen & Blank = Length of casing adjacent to filterpack <br />17 Borehole Filterpack = Length of borehole annulus filled with filterpack <br />18 Borehole Filterpack Below screen = Length of borehole filled with filterpack <br />off filled <br />on y below the well screen; Usually does not exist in most wells. <br />19 Borehole Mushroom cap = length of borehole above casinput with grout (typica ly 1 foot) <br />20 radius in inches = radius of casing or borehole (Not diameter) <br />21 pi= 3.1415 <br />22 radius in feet = Radius in inches/12 <br />23 height = height of borehole or casing in feet <br />24 ft3= cubic feet, pi*r2*h <br />25 Feet to gallon = 7.48, conversion factor <br />26 Volume in gallons = ft3*7.48 <br />27 Total Filter pack volume = Borehole Filterpack volume - casing screen <br />28 filterpack porosity = Assumed porosity of 30% <br />29 Effective Filterpack Volume = Total Filter pack volume * Filterpack porosity <br />30 Total Volume = Blank Casing + Screen Casing + Effective Filterpack Volume + Mushroom Cap <br />31 User Defined Value ] I j_