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1680 Durham Ferry Road, Tracy, CA <br />GROUT CALCULATIONS <br />MW-101 <br />1 Standard Well <br />radius in <br />inches pi <br />radius <br />(ft) <br />radius1'2 <br />I (ft"2) <br />-- <br />height <br />(ft) <br />r <br />Volume <br />(ft^3) <br />Convert <br />ftA3 to <br />gals. <br />Volume <br />(gals) <br />Total <br />Filter <br />pack vol. <br />(gals) <br />- <br />Total <br />volume <br />(gals) <br />2 <br />, Filter <br />pack <br />porosity <br />Effective <br />Filter <br />pack Vol. <br />(gals) <br />Actual <br />Grout <br />Used <br />(gals) <br />• <br />5 <br />0.0069 <br />0.0069 <br />6 Casing Blank adjacent to sealing material 1 3.1415 0.0833 <br />0.0833 <br />27 0.59 7.48 4.41 4.41 <br />7 Casing Screen & Blank adjacent to filter pack 1 3.1415 5 0.11 7.48 0.82 0.82 <br />8 Borehole Filterpack 4 3.1415 0.3333 0.1111 7.5 2.62 7.48 19.58 18.77 0.30 5.63 5.63 <br />9 Borehole Filterpack Below casing 4 3.1415 0.3333 0.1111 2.5 0.87 7.48 6.53 0.30 1.96 1.96 <br />10 Borehole Mushroom cap 10 3.1415 0.8333 0.6944 1 2.18 7.48 16.32 16.32 <br />11 29.13 <br />12 <br />13 <br />include 5 ' length <br />below the <br />(typically <br />to <br />well screen; <br />1 foot) <br />14 <br />be drilled 15 Casing Blank = Length of Blank Casing Adjacent to seal/grout backfill (do not 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 only Usually does not exist in most wells. <br />19 Borehole Mushroom cap = length of borehole above casillg cut off filled with grout <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, pre*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% F <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 1 1 •