Timeline of the 29th & Grove Site
1994
|
TCE found in the groundwater at 21st & Madison
|
1998
|
29th & Grove railyard identified as spill site
|
2003
|
TCE detected in groundwater in an area from the site to Murdock Ave
|
2004-05
|
Five wells installed just south of spill site to remove TCE from groundwater
|
2009
|
Six wells installed along Murdock Ave to prevent spread of TCE
– Indoor air testing confirms no health risk |
2010-11
|
Dirt from spill site removed
– Site treated to reduce contamination |
2013-16
|
Various testing to help evaluate cleanup options
|
2018-present
|
33 wells installed to add nutrients to increase bacteria to break down TCE
|
2022-23
|
KDHE & Union Pacific complete plan for future cleanup
|
2023
|
KDHE performs a Health Study of area residents
|
Future Actions
Spill Site
|
Groundwater
|
Monitoring
|
Remove soil containing TCE and haul it off, treat remaing soil at the site, haul in clean dirt, operate system to clean groundwater |
Remove groundwater, clean it, and put clean water back into the ground | Continuous site monitoring with performance checks every six months |