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Living Water Systems Inc |
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An 8 5/8's inch diameter hole is drilled from the ground surface into solid bedrock to a minimum depth of 39 feet. If the surface rock is soft, weathered, or decomposed, the bore hole is continued to depths that reach the unweathered sold bedrock, be it 40, 50, or 60 feet. Once the bedrock is reached, a new pipe (casing) 6 - 5/8's inches in diameter with 0.188 inch wall thickness is lowered to the bottom of the 8 5/8's hole. The joints of each 20 foot length steel casing is welded together in order to reach the solid, unweathered bedrock. A cement basket is attached to the base of the 6 5/8's casing.
A cement slurry of Portland Type III cement and water are mixed and poured or pumped from the 9 foot level to the bottom of the 8 - 5/8's bore hole around the 6 - 5/8's well casing, between the casing and the bore hole wall. Since contaminates most commonly migrates along the upper weathered rock and soil, installing this slurry, which hardens in a few days, will prevent any contamination from reaching the well bore and its storage.
Next, the 6 - 5/8's inch hole is drilled. A Polyvinyl Chloride (PVC) some with with perforations, with an inside dimension of 6 - 1/8's inches bore hole is installed. The total well recommended depth is determined by a combination of:
- "Well Recovery" from water entering the bore hole from fractures in the rock and,
- the total amount of well bore water storage in gallons per foot (see discussion under Designing Your Home Water Well).
Plastic PVC casing is used to line the 6 - 1/8's bore hole from the 10 foot from the surface level to the bottom of the bore hole.
The depth of the well determines whether a Class 200, 200 psi burst strength, PVC casing can be used or if a Schedule 40, 220 psi burst strength, casing is needed. Unfortunately, the two weights of casing can not be mixed to save money as breakage or joint failure could result. This could cause the well bore to be lost causing a need to redrill the well and case it again.
The 20 foot lengths of the PVC casing are attached by using a manufacturer suggested primer and glue. Small screws are also inserted in the joint assembly to ensure a tight fit. Perforation slots of 0.032 inches are factory precut into the PVC case at the bottom of the well to allow the well water to enter the casing and supply the well pump..
A solution of 100 PPM (parts per million) chlorine and water is mixed and poured into the well bore. This is required by Colorado regulations, to disinfect the well and prevent bacteria from growing in the well.
The final task of the well driller is to cap the 6 5/8's steel casing one foot or more from the ground surface with a water tight, removable well cap, or weld a steel plate over the open casing. This is to prevent contamination from entering the well from the surface.
Living Water Systems Inc
PO Box 469
Pine, Colorado 80470
Bonded and Insured, Experience in 11 states
303-674-4048
Toll Free 1-800-750-5077
FAX 303-838-6015
livwatinc@aol.com
