×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Filter backwash / EPA Class V injection well

Filter backwash / EPA Class V injection well

Filter backwash / EPA Class V injection well

(OP)
New here - looking for guidance -

I'm designing a groundwater supply for a small community (50 homes).  It includes a filter to remove Fe & Mn.  The filters backwash each night into a drainfield (about 100 gal).  Solids will settle out in a septic tank.  

Question is:  Would this be classified as a Class V injection well?  What do I need to do if it is?

Sorry if that seems like a dumb question.  My research on the subject from EPA has found descriptions of other Class V's, but none that match this situation.

RE: Filter backwash / EPA Class V injection well

The Underground Injection Control Program is a new regulation that has not been fully implemented by most of the states. Based on the waste characteristics of the application that you describe, the site would be considered a Class V injection well.

Existing residual pits that are being used to dewater drinking water treatment residuals (such as you are proposing) were permitted by rule as described below. You need to contact the state environmental agency where your site is located for guidance as to how they are handling this new program as well as to obtain a permit for your new Class V injection well.

Here is some information for you to review:

http://mainegov-images.informe.org/dep/blwq/rules/543_posted_draft.pdf#search=%22Class%20V%20injection%20well%20%22drinking%20water%20treatment%22%20residuals%22

www.kdheks.gov/geo/download/PPT_Presentation_on_Emerging_Issues.ppt

www.epa.gov/OGWDW/arsenic/pdfs/arsenic_training_2002/train6-residuals.pdf -

Permitting by Rule
• EPA has the authority promulgate permit by rule
provisions
• This provides additional flexibility to grant “general
permits” or authorize injection for broader categories of
injection wells
• Not subject to the limitations applicable to Area Permits
• The permit by rule provision has been used by EPA for most Class V wells and was used to grandfather most existing wells at the creation of the UIC program

RE: Filter backwash / EPA Class V injection well

Our firm, in PA, has done the settling tank/drain field as well as sand "drying" beds over native soils. PA allows Cl. 5 wells to be handled by EPA, other states may differ.

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!


Resources