DERR-2024-013088

VCP/Brownfields Section - Site Visit Report

SITE NAME: Mayflower Mine

SITE LOCATION: Wasatch County

DATE OF SITE VISIT: 20 December 2024

PURPOSE OF SITE VISIT: DERR (David Bird) oversight of Phase 1 remedial action.

FIELD OBSERVATIONS: The DERR visited the Mayflower VCP site at ~10:50 am on 20 December to
observe conditions at the site. The DERR observed the relocated detention pond west of the western
boundary of the Repository in the Big Dutch Pete Hollow drainage. The detention pond now appears to
be complete, with the spillway and exit structure in place, with rip-rap armoring material placed around
the pond.
The DERR left the site at ~11:55 am.
SPLIT SAMPLES COLLECTED: N/A
IS THE WORK BEING PERFORMED IN A MANNER CONSISTENT WITH THE ACCEPTED WORKPLAN?
Yes

View toward the east of the relocated detention pond upgradient of the Repository.

View toward the southwest of the relocated detention pond upgradient of the Repository.