Hydrogeology C

[BigBrown]

Can anyone tell me what a bored well is? I think it's the same thing as a drilled well, I can't find a lot of information about the different types of well's besides USGS and there are some terms like drilled well that I can't match to reliable sources.

[appleshake123]

Can anyone tell me what a bored well is? I think it's the same thing as a drilled well, I can't find a lot of information about the different types of well's besides USGS and there are some terms like drilled well that I can't match to reliable sources.

I believe the main difference to be in their depth and width. Bored wells are drilled using an auger with a large diameter at shallow depths to the water table(perched or not). They are typically more sucseptible to contamination due to being closer to the surface. Drilled wells have a smaller diameter and dig deeper(maybe a couple hundred feet). There is less contamination at these wells mainly because of the depth. Also, seasonal influence is lessened due to the depth of the drill well versus the dug well. Searching drilled wells, bored wells etc. will yield results that are consistent with the information.

[AlbatrossTree]

For part 3 often times you are given multiple wells in the scenario. Ex. A,B,C are pumping, Well C was contaminated, and well D is not pumping. Which three wells should you use? Some invitationals have told you which ones to use. I know that the contaminated well (C) is supposed to be the highest well.

[glasmacheru20]

In the practice scenario online they give you what to put in each box and how to calculate most things, does anyone know if they keep that at competitions?

[Magikarpmaster629]

In the practice scenario online they give you what to put in each box and how to calculate most things, does anyone know if they keep that at competitions?

They keep most, although not all of it. It's mostly the same.

[Abekitt]

In the practice scenario online they give you what to put in each box and how to calculate most things, does anyone know if they keep that at competitions?

Yes basically for the most part. The only difference is usually the placement of wells, their depths and probably the soils in them. Otherwise the boxes into which you plug numbers in are basically the same

[Magikarpmaster629]

Does anyone else feel like this event is like 70% testing definitions of terms? That's pretty much everything we get wrong on tests...

[ScottMaurer19]

We just put all the definitions on the cheat sheet and write the answers on the test word for word. The tests are usually super short so there is plenty of time to do this at competition (at least before nats).