22030 Durafiber Soil Management During Utility Work 20210722

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Soil Management Procedures During Electric Line and Utility Pole Installation
Former Durafiber Facility, Salisbury, NC
Brownfields Project ID 22030-18-080
Revision 1 - July 22, 2021

Contractors will be performing underground electric line and utility pole installation for above
ground electric lines at the former Durafiber facility in Salisbury, NC. Underground utility line
installation for light poles will be conducted along the entrance/exit roads in the northern portion
of the site. The approximate location of the underground electric line is provided in Figure 1. It
is anticipated that this work will include shallow horizontal drilling and shallow soil excavations.
New electric utility poles will also be installed extending from the northern portion of the site
southward into the eastern portion of the facility. The utility poles will be installed to replace
existing poles and install new poles as part of the process to convert the site to multi-tenant use.
The approximate pathways of the utility pole installations are indicated in Figure 2, and the poles
will be set at approximately 150 ft intervals. The utility poles will be installed by augering to
depths of approximately 6 to 10 ft depending on the height of the pole, type of pole, and soil
conditions.
As indicated in Figures 1 and 2, the utility work will be conducted outside of known areas of
concern. One utility pole will be installed in the former Glycol Recovery Units Bottoms
(GRUB) landfill; however, the GRUB landfill was excavated, removed, and closed in the mid-
1980s. Further, the poles will be installed in an existing electric utility line corridor. Therefore,
no significant soil impacts are expected in the utility work areas.
Below is a description of the procedures that will be used for soil management as part of the
utility work:
• During soil disturbance at the Site, the workers will observe soils for evidence of potential significantly impacted soil. Evidence of potential significantly impacted soil includes a distinct unnatural color, strong odor, or filled or previously disposed materials
of concerns (i.e. chemicals, tanks, drums, etc.). Should the above be noted during
sitework, the contractor will contact the environmental professional (see below) to observe the suspect condition. If the environmental professional confirms that the material may be impacted, then the procedures below will be implemented. In addition, the environmental professional will contact the DEQ Brownfields project manager (see
below) within two business days to advise that person of the condition. If there is no
evidence of soil impact, then the soil may be placed directly back into the excavation.
• If significant soil impact is encountered, the suspect significantly impacted soil will be stockpiled at its point of generation and covered to allow the work to progress. Suspect
significantly impacted soil will be underlain by and covered with minimum 10‐mil plastic sheeting. The environmental professional will collect one representative sample of the soil will be collected (consisting of a minimum 3 point composite for non-volatile organic compound [VOC] analysis and a grab sample for VOC analysis) for laboratory
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analysis of total VOCs, SVOCs, and RCRA metals plus hexavalent chromium. If the results of analysis of the sample indicate that the soil could potentially exceed toxicity characteristic hazardous waste criteria using the “Rule of 20”, then the soil will also be
analyzed by TCLP for those compounds that could exceed the toxicity characteristic hazardous waste criteria.
• If impacted soil is suspected or identified during the activities, the contractor will follow
OSHA protocols related to managing potential exposures to contaminated environmental
media, including testing vapors in the work area, if needed.
• Impacted soil will be handled in the manner described below based upon the laboratory analyses:
i. If organic compounds and metals are below Industrial PSRGs (or are
consistent with Site-specific background levels), then the soil will be deemed suitable for use as on-Site fill (including placement back in the excavation).
ii. If detectable levels of compounds are found which do not exceed the
Industrial PSRGs (other than which are attributable to sampling or laboratory artifacts or which are consistent with background levels for metals) and the TCLP concentrations are below hazardous waste criteria, then the soil may be used on-Site as fill.

iii. If detectable levels of compounds are found which exceed the Industrial PSRGs (other than which are attributable to sampling or laboratory artifacts or which are consistent with background levels for metals) and the TCLP concentrations are below hazardous waste criteria, then the soil, with DEQ’s
written approval, may be used on-Site as fill below an impervious surface
(i.e. parking lot), or at least 2 ft of compacted clean soil. If the impacted soil with concentrations above Industrial PSRGs is moved to an on-Site location, its location and depth will be documented, and its location will be provided to DEQ for possible inclusion on the Brownfields survey plat.

iv. In the unlikely event that the sample data indicates concentrations above TCLP hazardous waste criteria, then the soil must be transported off-Site to a permitted disposal facility that can accept or treat hazardous waste.
• If there is no evidence of significant soil impact at a location, the soil generated at that
location may be spread at or near the location generated. Soil generated from the site should not be taken off-site without prior approval from the environmental professional and DEQ.
• Water which collects in an excavation in which there is no evidence of soil impact will be allowed to evaporate or discharged to the ground surface in such a manner as to not cause direct runoff to surface water or a storm drain. If water collects in an excavation in which
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there is evidence of soil impact in the excavation or if there is evidence of impact to the water itself, the water will be allowed to evaporate (if feasible), tested by the environmental professional and disposed off-Site (if impacted), or tested and discharged
to the ground surface or storm sewer (if not impacted above DEQ surface water standards). If suspect impacted water is identified, then the environmental professional will contact the DEQ Brownfields project manager within 48 hours regarding the condition.
Contacts: Environmental Professional Property Owner
Steve Hart Houston Roberts
Hart & Hickman, PC Forsite Development
704-576-0145 (cell) 704-361-0129 (cell)
[e-mail] [e-mail]
DEQ Project Manager
Bill Schmithorst
DEQ Brownfields Program
919-441-3606 (cell)
[e-mail]

PLANNED LOCATIONS OF UNDERGROUND CONDUIT FOR LIGHT POLES
PLANNED CORRIDORS OF NEW & REPLACEMENT UTILITY POLES
SEE DETAIL FIGURE 2
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PLANNED CORRIDORS OF NEW &
REPLACEMENT UTILITY POLES
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