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Drilling
a Water Well
Now that you have the property of your dreams, what do
you do? You want to build the dream house, but you need water in
order to get your building permit. Where do you start?
The first major issue is where the property is
located. Some counties in the Pacific Northwest require county site
approval before the well is drilled. For a fee the county will inspect
the site and give their approval of the location of the well.
The second major issue is finding a knowledgeable
and competent well driller. Make sure that the well driller has
a contractor's registration number and has a well driller's license.
This assures you that he is up-to-date on all of the state and county
regulations. Make sure that the driller is a member of the national
and state ground water associations. You would not go to a doctor
who was not a member of the American Medical Association. Meet with
the well driller and go over the property. He will advise you the
best location of the well.
After
the location is chosen, the drill rigs will move onto the site.
The site must be somewhat level and clear. The driller will drill
an oversized hole to a minimum of 18 feet. The surface seal or ecology
seal will be placed in this oversized hole as required by state
law. The purpose of the surface seal is to keep surface water from
following the casing down to the aquifers below. This prevents any
chance of contamination.
After the surface seal hole is drilled, the driller
will install his first piece of casing. On the end of that casing
will be a drive shoe. The drive shoe protects the casing from damage
due to rocks and boulders. The driller will then drill beyond the
end of the casing and examine the materials as they are removed
from the borehole.
After
the borehole has been drilled, the casing is advanced either by
pushing or by using a casing hammer. Each twenty-foot piece is welded
as the casing is advanced down the hole. This method is repeated
until a water-bearing formation is encountered. At this time the
driller will sample the material in the formation. If the driller
determines that the particles are too fine, a stainless steel sand
screen will be installed to keep the sand out and let in clear water.
After the screen is installed (if needed), the driller will develop
the well with the use of a high volume of air or surge the well
with equipment called a bailer. The air rotary method is extremely
cost-effective and faster than other methods.
This does not mean that other methods of drilling
are not as qualified. With almost 50 years of experience, we believe
that the air rotary method provides the best available method of
drilling for our customers. With three state licensed and nationally
certified water well drillers, our expertise gives you the most
for your money.
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