general mills henkel corp superfund site n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
General Mills/Henkel Corp. Superfund Site PowerPoint Presentation
Download Presentation
General Mills/Henkel Corp. Superfund Site

Loading in 2 Seconds...

play fullscreen
1 / 16

General Mills/Henkel Corp. Superfund Site - PowerPoint PPT Presentation


  • 105 Views
  • Uploaded on

General Mills/Henkel Corp. Superfund Site. Background and lessons learned Managers Meeting February 13, 2014. Chemical Disposal 1947-1962. 1947 Aerial Photo. Generalized Groundwater Contamination. Groundwater Contamination. Soil and Groundwater Cleanup.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'General Mills/Henkel Corp. Superfund Site' - lawrence-oneal


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
general mills henkel corp superfund site

General Mills/Henkel Corp. Superfund Site

Background and lessons learned

Managers Meeting

February 13, 2014

soil and groundwater cleanup
Soil and Groundwater Cleanup
  • 1981“absorption pit” removed addressing the soil contamination.
  • 1984 Response Order by Consent between MPCA and General Mills
  • 1985 Extraction and Treatment of Contaminated Groundwater began.
  • 2010 Groundwater system turned off. TCE concentrations below the cleanup concentrations established in the Consent Order
generalized vapor intrusion
Generalized Vapor Intrusion

Dissolved contamination in groundwater

public involvement
Public Involvement
  • Two Public Meetings November 12, 2013
  • Five Community Group Meetings
  • “Office hours” sessions
  • MPCA Project website
  • E-mail distribution list for interested parties
  • Widely covered inlocal media
current status1
Current Status

Original Area of Vapor Concern

  • Access Agreements within Original Study Area:  166  (85% of 195 properties in Study Area)
  • Properties Sampled in Original Study Area: 158

Additional Study Area

  • Access Agreements in Additional Study Area: 77
  • Properties Sampled: 65
current status2
Current Status

Sampling Results Original and Additional Area

  • Results Received and Notifications Made to Property Owner: 210
  • Mitigation Needed : 118            
  • Resample : 12
  • No Mitigation Needed: 80   

Mitigation Systems

  • Install completed : 43
  • Installs in progress : 52
lessons learned
Lessons Learned
  • Age and magnitude of release
  • Consistent VI Investigations
  • Relationship of groundwater and soil gas concentrations
  • Partnerships
  • Engage with RP in ‘real-time’
  • Greater transparency/ongoing engagement
  • Fostering a informed community
  • Taking care of staff