Laserfiche WebLink
Well Deveiooment Protocol <br /> Groundwater monitoring dells gill be surged developed prior to <br /> setting the surface seal Approximately 10 times the volume of <br /> cater it1 the casing will be withdrawn if possible. Casing <br /> F volumes dill be calculated in the following manner- <br /> Volume of Schedule 40 PVC pipe <br /> Diameter I D Volume <br /> ' ( inches ) ( inches) Gal/linear ft. <br /> --------------------------------- <br /> 2 2.067 0. 17 <br /> 4 4.026 0. 66 <br /> Volume of Open Borehole and Annular Space <br /> Between Casing and dole <br /> Volume/ Volume/ <br /> Hole linear ft. Nominal linear ft. of* <br /> p , Diameter of hole Casing Diameter Annular Space <br /> ( inches ) Gal. Cu ft. ( inches) Gal. Cu. Ft. <br /> ----------------------------------------------------------------- <br /> 7.25 2.14 0.29 2 1.91 0.26 <br /> e=ra <br /> 8.25 2.78 0.37 2 2.55 0 34 <br /> F„ 10.25 4.29 0.57 2 4.06 0. 54 <br /> 10.25 4.29 0.57 4 3. 46 0.46 <br /> 12.25 6.13 0.32 4 5.30 0.71 <br /> S *Note: Annular volumes dill be multiplied by 30$ to account ;or <br /> porosity of filter pacts. <br /> If the aquifer is slow to recharge, development will continue <br /> until recharge 3s too slow to practically continue. The volume <br /> of water produced versus time will be recorded. <br /> i a.. <br />