Dynamic Planet B/C

L42
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Re: Dynamic Planet B/C

Postby L42 » September 27th, 2010, 3:45 pm

My answer is "yes". I think I'm reading the question correctly... Am I right?
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Re: Dynamic Planet B/C

Postby quizbowl » September 27th, 2010, 5:06 pm

My answer is "yes". I think I'm reading the question correctly... Am I right?
i was thinking the same thing. but my question is why is that?
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Re: Dynamic Planet B/C

Postby IdahoSciGuy » September 27th, 2010, 6:50 pm

aha! You are both wrong, now tell me why that answer is "no".
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Re: Dynamic Planet B/C

Postby quizbowl » September 27th, 2010, 6:51 pm

uhh, cause the water in the aquifer is stagnant lolwut
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Re: Dynamic Planet B/C

Postby robotman » September 27th, 2010, 7:11 pm

uhh, cause the water in the aquifer is stagnant lolwut
Nope only fully contained aquifers would be stagnent.

Since it is on sedimentary rock water will "flow" from one to the other there fore both will be contaminated
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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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<quizbowl> ey kid ya want some shortbread
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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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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 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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