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