|
2.1.1 Narrative
SWPPP controls and BMPs were inspected onsite prior to work
each day. Goldfield Mine Road was inspected visually and with an XRF daily for
contamination, the road tested clean every day. Wood from the mill and barn
building demolition was placed in the impoundment and broken down using tracked
heavy equipment. Approximately 7,000
cubic yards (cyds) of material was removed from the mill area and placed on the
impoundment. The concrete slabs that were underneath the mill buildings were
cleaned off. On November 4th, the construction entrance was sloped
to divert potential stormwater from the mill area to the contracted drainage on
the north side of the construction entrance.
Contaminated soils were discovered around Mr. Nixon's (the land owner) outbuilding ('museum') that were removed by hand and placed on the impoundment. The building foundation was compromised due to age/deterioration. The building's foundation was stabilized/repaired.
Two loads of scrap metal were removed by the
recycler.
Sampling: On
October 30, 2014 samples from two drums containing unidentified materials were
collected and submitted for analyses.
Air samples were collected from three locations on October 30th,
and November 6th.
Air samples were sent for lab analysis on October 31, 2014
and November 7th.
Analytical results for the following air samples were
received on November 6, 2014. The analytical results are presented below:
|
Sample Id
|
Date collected
|
Lead (µg/m3)
|
Reporting Limit (µg/m3)
|
Method
|
|
#1 D6 Dozer
|
10/30/2014
|
<100
|
100
|
NIOSH 7303
|
|
#2 Nixon
Fence
|
10/30/2014
|
<100
|
100
|
NIOSH 7303
|
|
#3 Silt
Fence
|
10/30/2014
|
<100
|
100
|
NIOSH 7303
|
|
