Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Permeability calculations for a bore pit

Permeability calculations for a bore pit

Permeability calculations for a bore pit

Still working on recommendations for the project mentioned in my last thread which will involve a bore pit and a receving pit that will have significant dewatering needs. We performed both pump and slug testing and have very different K conditions between the pits due to different geologic formations on wither side of a creek channel. in the area of one pit I have K values ranging from 2.5 to 10 feet/day based on rising head calcs from the slug testing. In the other pit I have crazy K values ranging from 90 to 380 feet/day, from rising head part of slug testing (the pump test barely affected the water level in that formation). The (municipal) client wants to know gpm/SF of vertical foot surface area in the pits, for the contractor to estimate dewatering needs.... I don't know if I have the data to calculate this or if it is something I can responsibly provide. thoughts would be appreciated...

RE: Permeability calculations for a bore pit

oh geez, i'm reviewing my hydrology text book and I think i can just solve for Q knowing the level of the GW table and the bottom of the pit we need to lower the water level to...

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close