This is a custom spreadsheet for industrial water supply calculations with up to 50 equipment feeds.

This is a custom spreadsheet to estimate the rate of natural gas leakage through a small slit in the pipe wall

This custom spreadsheet calculates the rate of heat loss in Watts/ft from a pipeline based on user input values for the desired maintenance temperature, min. design ambient temperature, inside diam of insulation, outside diam of insulation, thermal conductivity of the insulation, and % safety factor.

This is a custom spreadsheet update to estimate the vapor composition above the liquid in a solvent tank.

This is an update to a Spa-Pool Hydraulics Workbook

This is a custom spreadsheet for making calculations of cooling rates for a hydronic cooler including calculation of the cooling rates in Btu/sq ft/hr and calculation of the cooling rates for a metal plate attached to the pipes and a thin layer of drywall attached to the front of the plate.

This spreadsheet calculates the flow coefficient for an adjustable choke valve and also calculates the liquid flow rate through the valve for specified pressure difference and liquid specific gravity.

This custom spreadsheet is set up to calculate an estimated propane gas leakage rate through soil above a pipeline due to a hole in the pipe.

This custom spreadsheet can be used to calculate an estimated flow rate and velocity of copper concentrate fluid through a small hole in a pipe wall.

This is a custom spreadsheet for calculating EGL and HGL for a storm drain system with a series of catch basins.

This is a custom Pond Routing Spreadsheet with an added worksheet for a compound rectangular-rectangular sharp-crested weir outlet

This custom Excel spreadsheet calculates the resultant force on a boat based on user provided information about wind, current, tidal stream, and charted course and speed for the boat, along with user provided information about boat dimensions.  The speed and course of the boat due to all of the calculated forces is also calculated.

This is a custom spreadsheet for calculating the required dilution ratio for specified chemicals present in a laboratory fume hood.

This is a custom spreadsheet prepared to make specific stage-storage calculations.

This is a custom spreadsheet for estimating the water evaporation rate from a sump.

A custom spreadsheet for soil storage calculations.

This spreadsheet calculates the minimum pipe bend wall thickness using ASME B31.3 equations, based on user input values for several required parameters.  There is a worksheet for calculating the minimum wall thickness at the inside radius (intrados) and a worksheet for calculating the minimum wall thickness at the outside radius (extrados).  The worksheets are set up to use S.I. units

This Excel Workbook is set up to calculate the capacity of a stormwater inlet based on input values for inlet dimensions and stormwater depth at the inlet.  There is a worksheet to make the calculations for a curb inlet and a worksheet to make the calculations for a gutter (grate) inlet.  Information is also provided in the workbook on how to handle the calculation of inlet capacity for a combination inlet.

This is a custom spreadsheet that calculates the required air dilution flow rate in SCFM and in ACFM for specified values of gas leak rate in SLPM, IDLH in ppm for the gas that is leaking, dilution air temperature and pressure, and values for standard temperature and pressure.

This spreadsheet uses the Freundlich Isotherm equation to calculate the capacity of granular activated carbon for removal of a user specified organic compound from water.