…in anticipation of drilling a deep well (400’ or so). what are the latest technologies?
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I don’t know but “forked twig” water diviners will charge you an arm and a leg.
Call in a dowser…
seriously
http://www.dowsers.org/
Phooey. Sorry, the ground penetrating radar only works to a depth of 10 meters (33 feet).
You need some type of blast-generated affair, were a hole is drilled into a series of areas and small explosive charges are placed in them. The charges are set off and a montoring instrument records the movement of the energy (shock wave) through the ground. The energy moves differently through areas of different water saturation. The results suggest where the water is.
I’ve seen it done in the middle east but can’t, for the life of me, recall the name of the process. An oil company was doing it I think.
Francois may know more about this come to think of it. I think he worked at a lab that had some dealings with the movement of blast generated energy through earth.
Ground Penetrating Radar can be used, but it depends on what your local geology is. Other surfical geophysical methods can be used again depending on your specific problem: shallow seismic, EM…
Company I used to work for called Golder Associates could probably help you. Numbers on the Web Golder.com, call their Redmond WA office if they don’t have one closer to you.
Most of the time you just drill till you find water, unless you have multiple locations to choose from.
Phooey. Sorry, the ground penetrating radar only works to a depth of 10 meters (33 feet).
You need some type of blast-generated affair, were a hole is drilled into a series of areas and small explosive charges are placed in them. .
Seismic reflection. Depth of GPR is very site specific.
Wrong forum…just kidding.
Check your email, I sent you some information.
400 feet now that is a well. Geothermal?
We had a deep well put in about 10 years ago when we lived in a neighborhood where most of the houses were on a couple of acres and multiple wells were going in. Based on maps and experience, our guy said put the well “here” (which is not where the spousal unit wanted it – sort of in the middle of the backyard which was around an acre) but we went with his recommendation and landscaped around it. Most people didn’t and put their wells on the back property line (probably 250 linear feet back from where we put ours. We pumped over 100 gallons a minute with no iron. Others were lucky to get 30 gallons and had iron. So the moral of the story, if there is one, is get the right well guy and there can be huge difference in output with small changes in distance.
So the moral of the story, if there is one, is get the right well guy and there can be huge difference in output with small changes in distance.
I know people like to think that dowsing sticks really do work, but wanting something to work and it actually working are very different. (My wife really wants me to do housework, ask her how that is working out.)
If you are going to the expense of drilling a 400’ well I would hope you would use something more advanced than a witch doctor with a forked stick.
More along the lines of these guys, http://www.findwellwater.com/
I run a water purification company so am familiar with this. There are a number of methods and unfortunately none are foolproof - otherwise I wouldn’t have so many customers with low flow wells. Why are you assuming 400’? Neighbours at that depth?
If it is for domestic purposes (or other) feel free to PM me if you want some advice on treatment.
“I know people like to think that dowsing sticks really do work, but wanting something to work and it actually working are very different…”
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- True, but a good dowser can find water if there’s any to be found. I used to sell real estate in a rural area, and we had a guy who was incredible. He found water on several sites where the “pros” said there just wasn’t going to be any.
Take this to the Geology room.
Because several folks have jumped in to poke fun at dowsing, I’ll say this again: CALL IN A DOWSER
Feel free to tell him or her that you aren’t so sure about the efficacy of what they do and see if you can’t get a money-back guarantee, if that makes you more comfortable.
Years ago I sold real estate in a rural area and the guy who did all my dowsing was so good that the contractors and utility companies had him find underground pipelines that weren’t mapped. They had so much confidence in him that if he said a pipeline was 12 feet down, they’d backhoe to within about a foot of it before going to shovels.
On several occasions he found water where other “experts” said there wasn’t any and on one lot where the cost of drilling the well was going to be outrageous because of the depth (about 400 feet, if memory serves) and also was only expected to yield about 8-10 gpm. My dowser found water at a different location (after confirming that there was water 400 feet down at the first location) that was less than 120 feet down and the yield was well over 50 gpm.
“Why are you assuming 400’?”
i have two wells on my property. monty has one well. these wells, and all the others in the area, are 300’ to 500’ in depth. this is not the eastern seaboard, where anything over 15’ is considered deep. this is on the edge of the mojave desert, where 400’ is typical and 800’ is occasional.
monty and i have some land we want to improve. we know the good well drillers. but a good well driller simply drills a good hole. he doesn’t know with any precision where the water is. there are currently technologies using satellites that determine the location of aquifers well below ground, and through these technologies it’s become possible for areas in the sahara to be opened up to agriculture, because of huge aquifers formed 10,000 years ago during the ice age, when saharan africa was tropical.
so, are there similar technologies that can be leveraged to good use for a guy with a few acres? that’s my question. i own deep water wells, i work on them myself, please don’t tell me stuff i already know. i’m looking for the stuff i don’t know.