Griggs & Walnut Ground Water Plume

Regulatory timeline

1. January 11, 2001Proposed for the NPL
2. June 14, 2001Established on the NPL (final listing)
3. July 20, 2012Construction completed

Projected reinspection cycle

CERCLA requires a five-year review while hazards remain on site. These dates are projected from this site's cleanup timeline — they are estimates, not EPA-published dates. Check the site progress profile for the actual review schedule.

1. July 20, 2022Projected five-year review (reinspection), cycle 2
2. July 20, 2027Projected five-year review (reinspection), cycle 3
3. July 20, 2032Projected five-year review (reinspection), cycle 4

Official EPA records