Dynamic Planet B/C

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quizbowl
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Re: Dynamic Planet B/C

Postby quizbowl » September 27th, 2010, 7:15 pm

maybe the one drilled directly into the aquifer would be contaminated cause it has direct contact with the water; the other one doesnt so it isnt?
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Re: Dynamic Planet B/C

Postby robotman » September 27th, 2010, 7:35 pm

Ah the poor souls who have never done aquifers :( it makes this even a bit easier

Aquifers will collect all water from a system that percolate down. Since the well is into Sedimentary strata is it permeable. Therefore any pollutant introduced will slowly make its way through the rock into the aquifer unless there is and impermeable layer such as clay. an aquifer is really just a large source of ground water and most groundwater is connect in a given area unless an impermeable layer is present(this is a generalization don't start about its flaws)
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Re: Dynamic Planet B/C

Postby lllazar » September 27th, 2010, 9:31 pm

Ah the poor souls who have never done aquifers :( it makes this even a bit easier

Aquifers will collect all water from a system that percolate down. Since the well is into Sedimentary strata is it permeable. Therefore any pollutant introduced will slowly make its way through the rock into the aquifer unless there is and impermeable layer such as clay. an aquifer is really just a large source of ground water and most groundwater is connect in a given area unless an impermeable layer is present(this is a generalization don't start about its flaws)
Thank you sir for that explanation, that question was honestly gnawing away at my soul.
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Re: Dynamic Planet B/C

Postby quizbowl » September 28th, 2010, 1:44 pm

Ah the poor souls who have never done aquifers :( it makes this even a bit easier

Aquifers will collect all water from a system that percolate down. Since the well is into Sedimentary strata is it permeable. Therefore any pollutant introduced will slowly make its way through the rock into the aquifer unless there is and impermeable layer such as clay. an aquifer is really just a large source of ground water and most groundwater is connect in a given area unless an impermeable layer is present(this is a generalization don't start about its flaws)
Thank you sir for that explanation, that question was honestly gnawing away at my soul.
i still dont get it :/
idaho, whats your explanation?
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<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.

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Re: Dynamic Planet B/C

Postby IdahoSciGuy » September 28th, 2010, 2:47 pm

The answer is "no"

One of things about aquifers is that in general, inorder to have a pure aquifers, it needs to be bounded on top by an impermeable layer. Therefore, in the generalization of aquifers, it is assumed that an impermeable layer is present. Yes, there are some special cases were aquifers are not bounded by an impermeable layer, but in my opinion, on tests it would be hard to distinguish that from a zone of saturation(aka water table) unless it is explicitly mentioned.

Once you know this, you look at the locations of the wells, and you can tell from there which ones will be contaminated.
(i'll edit this with a picture explaining it later tonight)

IMPORTANT PRINCIPLE: Groundwater flows downhill.

With this knowledge, you can determine the impacted wells. Well one, drilled into the strata, will be impacted by the contaminents. Well two, drilled into the aquifer will not, because an impermeable layer prevents contamination of the water system.
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Re: Dynamic Planet B/C

Postby quizbowl » September 28th, 2010, 3:45 pm

OHH.
i guess knowing about the impermeable layer would have significantly helped. i bet the picture will explain this.
2010: 5th in NYS
2011: 4th in NYS
2012: 3rd in NYS
<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.

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Re: Dynamic Planet B/C

Postby IdahoSciGuy » September 29th, 2010, 3:50 pm

It will, as soon as i get around to doing it.

Another question to tide you all over while i get the picture ready:

A waterfall is good example of a ________?
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Re: Dynamic Planet B/C

Postby quizbowl » September 29th, 2010, 3:57 pm

young river
2010: 5th in NYS
2011: 4th in NYS
2012: 3rd in NYS
<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.

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Re: Dynamic Planet B/C

Postby Flavorflav » September 29th, 2010, 6:15 pm

Postcard?

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Re: Dynamic Planet B/C

Postby zyzzyva980 » September 29th, 2010, 6:33 pm

A place where water falls? Probably not good to leave it open-ended.
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