15020_ReVenture East_Stowe RWWRF_HDD EQ BASIN EMP_2022.07.13

Environmental
Management Plan
HDD EQ Basin 2 Spoils Area
Stowe Regional Water Resource
Recovery Facility
Charlotte Water
Charlotte, North Carolina
March 2022

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
Table of Contents
NORTH CAROLINA BROWNFIELDS PROGRAM ENVIRONMENTAL MANAGEMENT PLAN ........................... 2
GENERAL INFORMATION ........................................................................................................................ 4
COMMUNICATIONS ................................................................................................................................ 4
NOTIFICATIONS TO THE BROWNFIELDS PROGRAM ............................................................................... 5
REDEVELOPMENT PLANS ........................................................................................................................ 5
CONTAMINATED MEDIA ....................................................................................................................... 10
PART 1. Soil ....................................................................................................................................... 10
PART 2. GROUNDWATER .................................................................................................................. 23
PART 3. SURFACE WATER .................................................................................................................. 25
PART 4. SEDIMENT ............................................................................................................................ 26
PART 5. SOIL VAPOR ......................................................................................................................... 28
PART 6. SUB‐SLAB SOIL VAPOR ........................................................................................................ 28
PART 7. INDOOR AIR ......................................................................................................................... 29
VAPOR INTRUSION MITIGATION SYSTEM ............................................................................................. 29
CONTINGENCY PLAN – encountering unknown tanks, drums, or other waste materials ..................... 30
POST‐REDEVELOPMENT REPORTING ..................................................................................................... 33
APPROVAL SIGNATURES ....................................................................................................................... 34

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
NORTH CAROLINA BROWNFIELDS PROGRAM
ENVIRONMENTAL MANAGEMENT PLAN

This form is to be used to prepare an Environmental Management Plan (EMP) for projects in
the North Carolina Brownfields Program at the direction of a Brownfields project manager.

The EMP is a typical requirement of a Brownfields Agreement (BFA). Its purpose is to clarify
actions to be taken during the demolition and construction at Brownfields properties in an
effort to avoid delays in the event of the discovery of new contamination sources or other
environmental conditions. The EMP provides a means to document redevelopment plans and
environmental data for each applicable environmental medium to inform regulatory‐compliant
decision‐making at the site. As much detail as possible should be included in the EMP,
including contingency planning for unknowns. Consult your project manager if you have
questions.

Prospective Developers and/or their consultants must complete and submit this form and all
pertinent attachments, see checklist below, to their Brownfields project manager prior to any
earthmoving or other development‐related activities that have the potential to disturb soil at
the Brownfields Property, including demolition. For the resultant EMP to be valid for use, it
must be completed, reviewed by the program, signed by all parties working on the project,
and approved by the Brownfields project manager. Failure to comply with the requirements of
the EMP could jeopardize project eligibility, or in the event of a completed agreement, be
cause for a reopener.

The EMP is valid only for the scope of work described herein and must be updated to be
applicable for new phases of redevelopment or after significant changes in applicable
regulatory guidance.

Voluntary Metrics Tab The NC Brownfields Program updates estimated capital investment (from the Brownfields Property Application) and estimated jobs created (from the Brownfields Agreement) whenever possible. As a voluntary measure, you may opt to complete the below information for capital
investment and jobs created as estimated by your final redevelopment plans for the Brownfields Property:
1. Estimated capital investment in redevelopment project: 2. Estimated jobs created:
a. Construction Jobs:
b. Full Time Post-Redevelopment Jobs: Click or tap here to enter text.

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
So that the EMP provides value in protecting brownfields eligibility and public health, the
preparer shall ensure that the following steps have been completed prior to submitting the
EMP for review. Any EMP prepared without completing these steps is premature.

☒ Site sampling and assessment that meets Brownfields’ objectives is complete and has
been reviewed and approved by the Brownfields Project Manager.
☒ Specific redevelopment plans, even if conceptual, have been developed for the project,
submitted and reviewed by the Brownfields Project Manager.

Please submit, along with the completed EMP form, the following attachments, as relevant
and applicable to the proposed redevelopment:

☒ A set of redevelopment plans, including architectural/engineering plans, if available; if
not conceptual plans may suffice if updated when detailed plans are drafted.

☒ A figure overlaying redevelopment plans on a map of the extent of contamination for
each media.

☒ Site grading plans that include a cut and fill analysis.

☐ A figure showing the proposed location and depth of impacted soil that would remain
on site after construction grading.

☒ Any necessary permits for redevelopment (i.e. demolition, etc.).

☒ A detailed construction schedule that includes timing and phases of construction.

☒ Tabulated data summaries for each impacted media (i.e. soil, groundwater, soil gas,
etc.) applicable to the proposed redevelopment. (Provided under separate cover)

☒ Figures with the sampling locations and contamination extents for each impacted media
applicable to the proposed redevelopment.

☐ A full final grade sampling and analysis plan, if the redevelopment plan is final.

☐ If known, information about each proposed potential borrow soil source, such as aerial
photos, historic site maps, historic Sanborn maps, a site history, necessary for
brownfields approval.

☐ Information and, analytical data if required, for quarries, or other borrow sources,
detailing the type of material proposed for importation to the Brownfields Property.

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
☐ A work plan for the sampling and analysis of soil to be brought onto the Brownfields
Property. Refer to Issue Resolution 15 in Brownfields Program Guidelines.

☐ A map of the Brownfields Property showing the location of soils proposed for export
and sampling data from those areas.

☐ If a Vapor Mitigation System is required by the Brownfields Program, the Vapor
Intrusion Mitigation System (VIMS) plan will be signed and sealed by a NC Professional
Engineer. The VIMS Plan may also be submitted under separate cover.

GENERAL INFORMATION

Date: 2/10/2022 Revision Date (if applicable): 3/15/2022

Brownfields Assigned Project Name: ReVenture East

Brownfields Project Number: 15020‐11‐060

Brownfields Property Address: Belmeade Drive, Charlotte, NC

Brownfields Property Area (acres): 305
Is Brownfields Property Subject to RCRA Permit?.......................☐ Yes ☒ No
If yes enter Permit No.: NA
Is Brownfields Property Subject to a Solid Waste Permit….……..☐ Yes ☒ No
If yes, enter Permit No.: NA

COMMUNICATIONS

A copy of this EMP shall be distributed to all the parties below as well as any contractors or site workers that may be exposed to site vapors, soil, groundwater, and/or surface water. Additionally, a copy of the
EMP shall be maintained at the Brownfields Property during redevelopment activities. NOTE, THE EMP
DOES NOT TAKE THE PLACE OF A SITE-SPECIFIC HEALTH AND SAFETY PLAN.

Prospective Developer (PD): Charlotte Water
Contact Person: Nicole Bartlett
Phone Numbers: Office: 704‐336‐1007 Mobile: 704‐497‐8801
Email: [e-mail]

Contractor for PD: The Haskell Company
Contact Person: Greg Fossett
Phone Numbers: Office: 314‐315‐8507 Mobile: 704‐506‐5905
Email: [e-mail]

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HDD Flow EQ Basin 2 EMP Version 2, March 2022

Environmental Consultant: HDR Engineering, Inc. of the Carolinas
Contact Person: Mark Filardi
Phone Numbers: Office: 704‐338‐6787 Mobile: 980‐322‐8991
Email: [e-mail]

Brownfields Program Project Manager: Sarah Hardison Young
Phone Numbers: Office: 919‐707‐8382 Mobile: 919‐441‐7428
Email: [e-mail]

Other DEQ Program Contacts (if applicable, i.e., UST Section, Inactive Hazardous Site Branch,
Hazardous Waste, Solid Waste):
NCDEQ DWM – Hazardous Waste Section: Michael Babuin; 919‐707‐8211;
[e-mail]

NOTIFICATIONS TO THE BROWNFIELDS PROGRAM

Written advance Notification Times to Brownfields Project Manager: Check each box to accept
minimum advance notice periods (in calendar days) for each type of onsite task:

On-site assessment or remedial activities:……………………………………….…… 10 days Prior ☒

Construction or grading start:……………………………………….………………………. 10 days Prior ☒

Discovery of stained soil, odors, USTs, buried drums or waste, landfill, or other signs of previously
unknown contamination: ……………………………….……………………………………. Within 48 hours ☒

Implementation of emergency actions (e.g. dewatering, flood or soil erosion control measures in
area of contamination, ventilation of work zones):…………….……….……… Within 48 hours ☒

Installation of mitigation systems:………………………….………………….……….. 10 days Prior ☒

Other notifications as required by local, state or federal agencies to implement redevelopment
activities: (as applicable): ……………………….…………………………………………..… Within 30 days ☒

REDEVELOPMENT PLANS

1) Type of Redevelopment (check all that apply):
☐Residential ☐Recreational ☐Institutional ☐Commercial ☐Office ☐Retail ☐Industrial
☒Other specify:
Charlotte Water intends to construct wastewater treatment and conveyance facilities on their
property to support the growth and development of western Mecklenburg County and the cities

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
of Mount Holly and Belmont in eastern Gaston County. This infrastructure will ultimately support
the Stowe Regional Water Resource Recovery Facility (SRWRRF), which was formerly known as
the Long Creek Wastewater Treatment Plant (WWTP).

The scope of this EMP is a portion the overall scope to be constructed by the Haskell/Black &
Veatch team which includes the following components:
‐ Horizontal Directional Drills (HDD) (4)
‐ Site prep work for the HDD’s
‐ Flow Equalization Basin 2 construction
‐ Development of an engineering excess soil spoil site
‐ Existing gravel road and misc utility relocations and installations
‐ Beneficial Reuse of Brownfield soil to Cell 4 (Bass Pond) – Approved Work and
Assessment plan required prior to initiating this work.

This EMP does not include the following components of the Haskell scope that will be submitted
under a separate EMP:
‐ Headworks & Influent Pumping Station (HW&IPS)
‐ Associated Piping for HW&IPS
‐ Generator building

The proposed scope and limits of disturbance (LOD) for this EMP phase are shown on Figure 3.

The purpose of this EMP is to provide direction regarding known site conditions and potential
waste management requirements, should contaminated soil be identified during construction.

Separate EMPs will be submitted for the Wastewater Resource Recovery Project
(Hazen/Crowder/Garney), the HW&IPS and Piping (Haskell/Black & Veatch) and the Northern
Access Roads (HDR). The Southern Bridge EMP was approved on December 30, 2021.

2) Check the following activities that will be conducted prior to commencing earth-moving activities
at the site:
☒ Review of historic maps (Sanborn Maps, facility maps)
☐ Conducting geophysical surveys to evaluate the location of suspect UST, fuel lines, utility
lines, etc.
☒ Interviews with employees/former employees/facility managers/neighbors

3) Summary of Redevelopment Plans (MANDATORY: attach detailed plans or conceptual plans, if detailed plans are not available. EMP review without such information would be premature):
Provide brief summary of redevelopment plans, including demolition, removal of building
slabs/pavement, grading plans and planned construction of new structures:
The scope of this project involves the following (all areas are within the Brownfield East
boundary and no RCRA areas are included and all Limits of Disturbance for the EMP are shown
on Figure 3):

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HDD Flow EQ Basin 2 EMP Version 2, March 2022

• Horizontal Directional Drills (HDD) (4) – The construction sequence for the HDD’s will be
to drive a casing pipe through the soil layer to the rock interface. Soil trapped in the
casing pipe is then augered from the casing pipe for spoil. During the drilling process
the spoils will be made up of a mixture of soil/rock/bentonite clay/water. A portion of
the water will be provided via City water and some groundwater until the competent
rock layer is reached. The different volumes of each type of spoil mixture for the
forcemains is shown on the plan and profile sheets for the Mount Holly Forcemains and
the Preliminary Treatment Effluent (PTE) Forcemains included in the Redevelopment
Plans section of this EMP. These sheets also illustrate which portions of the HDD are
inside or outside of the Brownfield boundary. For this project all of the HDD slurry will
be dewatered onsite using a centrifuge and the dewatered spoils transported by dump
truck from the Long Creek Pump Station site via Whitewater Center Parkway and
Belmeade Drive to the Spoil Area site shown on Figure 3. The centrate water from the
centrifuge operation will be disposed of in the Charlotte Water sanitary sewer under a
temporary discharge permit issued by the Charlotte Water industrial pretreatment
group. No water will be discharged to the ground or any waterways. The discharge
permit will stipulate testing requirements and acceptable discharge rates. The Spoil
Area site will be the final disposal location for the HDD spoils.
• Site prep work for the HDD’s ‐ This work involves limited clearing and grading to create
work pads for the drill rigs and associated equipment. The majority of the area has been
previously cleared and graded in 2007 prior to the Brownfield designation. No cut
depths are greater than 2 feet deep and simply to change the grade in the work zone.
The grading plan is included in the Redevelopment plan and highlighted (Sheet C‐01‐
102).
• Flow Equalization Basin 2 (shown on Figure 3) construction – This basin will be used to
store wastewater that comes to the influent pump station during peak rain events that is
in excess of what can be pumped to the treatment plant. These basins are used at all
Charlotte Water wastewater plants and typically store water for only a couple days
several times per year depending on rainfall events that year. This facility has two other
existing tanks that will be used before any flow is pumped to this EQ basin. Construction
will involve the clearing and grubbing of a wooded area followed by a combination of
excavation of the basin and filling of the basin walls. Soil excavated in the basin area will
be reused for the basin wall construction and no soil is planned to leave the site. Based
on geotechnical explorations completed to date and the elevation of the site no
groundwater is anticipated to be encountered during the basin construction. The basin
will be designed for no leakage with the layers being as follows starting at the bottom
where the exposed soil will be after excavation: 1. Filter fabric laid on the exposed soil; 2.
Stone fill with underdrain pipe back to the pump station for the floor and a drainage
geocomposite layer on the slopes; 3. Filter fabric on top of stone drain layer to trap fine
clays/silts; 3. Geomembrane for impervious barrier; 4. Filter fabric layer; and 5. Concrete
slab on floor and concrete filled geocell on slopes. This layer detail is shown on plan

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
sheet M‐40‐301 and the underdrain system is shown on plan sheets C‐05‐101/102.
• Spoil Area ‐ Construction of the Spoil Area (shown on Figure 3) within the Brownfield
East boundary. The grading plan is included in the Redevelopment Plans section of the
EMP and show the proposed grading contours and estimated volumes of fill to be
imported to the site. Base and estimated final contours are shown as well as the cut/fill
areas are color coded on Redevelopment Plan sheet 01C102. The estimated excavation
volume on the spoil site for its development is 18,000 cyds from the identified borrow
area (shows as white rectangle on plan) on the Spoil Area to construct the short section
of Construction Access Road from the existing drive to the fill area. It will also include the
Erosion Control BMP berms at the Spoil Area site (Sheet 01C102).
The remainder of the site is a net fill from the soils imported from 1. the dewatered HDD
slurry and 2. the non‐structural qualified soil from the area identified on Figure 3 as the
Beneficial Reuse Borrow area (which is essentially the remainder of the project site). The
HDD dewatered slurry material will be tested per Section 4 of this EMP. The remainder
of the soil has been historically tested and will be further tested through the Beneficial
Reuse workplan. However it is understood that soils going to the Spoil Area are not
required to meet the same standards as soils going to the Bass Pond since the Spoil
Area is also part of the same brownfield. Excavated soils from the HDD slurry
dewatering and the Beneficial Reuse Area imported to this site after the site is
constructed will be hauled via the Clariant Industrial site roads to Belmeade Drive then
to the site initially. Once the Southern Bridge is completed (March 2023), the haul route
will likely be via Whitewater Center Parkway to Belmeade Drive to the site. Figure 5
illustrates the intended haul routes. Once all project excess soil has been placed in the
spoil area the area will be final graded and revegetated as this will be the final depository
for that soil.
• Existing gravel road and misc utility relocations and installations – A portion of the
existing gravel access road to the Long Creek Pump Station and several utilities (water,
sewer, power, communications, etc) need relocating as they are located in the current
access road where Flow EQ Basin 2 is to be constructed. A new water line will also be
constructed to the pump station site along the existing and relocated access road. No
excess soil is expected to be generated. If stabilization stone is required for the
relocated road or to bed the utilities it will be obtained from an approved quarry. The
LOD of this work is shown on Figure 3 and the Flow EQ Basin 2 plan sheet in the
redevelopment plans.
• Beneficial Reuse of Brownfield soil to Cell 4 (Bass Pond) – Approved Work and
Assessment plan required prior to initiating this work. ‐ A work and assessment plan
will be developed to move soil from the Borrow areas shown on Figure 3 to the currently
unused Cell 4 (Bass Pond) area as beneficial reuse. The soil will be tested in‐situ and
assessment results approved by Brownfields prior to export to the Bass Pond such that it
can be moved directly from the borrow area to the deposition location.

The LOD for this EMP scope is shown on Figure 3.

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HDD Flow EQ Basin 2 EMP Version 2, March 2022

Site development plans included in this EMP show the conceptual and detailed design completed
to date for this project, including grading and site plans and utilities to be installed.

4) Do plans include demolition of structure(s)?:
☐ Yes ☒ No ☐ Unknown
☐ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements, including without limitation those related to lead and asbestos
abatement that are administered by the Health Hazards Control Unit within the Division of Public
Health of the North Carolina Department of Health and Human Services. If available, please
provide a copy of your demolition permit.

5) Are sediment and erosion control measures required by federal, state, or local regulations?
☒ Yes ☐ No ☐ Unknown
☒ If yes, please check here to confirm that demolition will be conducted in accordance with
applicable legal requirements. If soil disturbance is necessary to install sediment and erosion
control measures, they may not begin until this EMP is approved.

6) Which category of risk-based screening level is used or is anticipated to be specified in the
Brownfields Agreement? Note: If children frequent the property, residential screening levels shall
be cited in the Brownfields Agreement for comparison purposes.
☐ Residential ☒ Non-Residential or Industrial/Commercial

7) Schedule for Redevelopment (attach construction schedule):
a) Construction start date: 2/15/2022

b) Anticipated duration (specify activities during each phase):
Project duration is 1.5 years
The anticipated time frames of the work components in this EMP are as follows:
‐ HDD’s are expected to take 12 months to complete and would begin in March of
2022
‐ Flow EQ basin 2 construction is expected to begin in May of 2022 and last
approximately 12 months
‐ The Spoil Site development is expected to begin in April 2022 and be ready for
accepting soil in August of 2022. The site would remain in use until its closure at the
end of the project in early 2026.

c) Additional phases planned? ☒ Yes ☐ No

If yes, specify the start date and/or activities if known:
Start Date: 5/2/2022
Planned Activity:

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The Southern Bridge and Access roads will be conducted under the HDR EMP dated
December 2021 approved by DEQ Brownfields on December 30, 2021.

All future Phases will be handled under a separate EMP approved by Brownfields prior to
initiating the respective work.

Phase 3 is continuation of Phase 2 (this EMP) that includes the excavation and construction of
the HW&IPS structure and associated piping shown on Figure 3.

Start Date: 5/2/2022
Planned Activity:
Phase 4 will be the initiation of construction on the Stowe site west of Long Creek for the
main treatment plant. This work is on ReVenture East Brownfield.

Start Date: Click or tap to enter a date.
Planned Activity:
Click or tap here to enter text.

d) Provide the planned date of occupancy for new buildings: 3/14/2025

CONTAMINATED MEDIA
Please fill out the sections below, using detailed site plans, if available, or estimate using known areas
of contaminated soil and a conceptual redevelopment plan. Provide a figure overlaying new
construction onto figure showing contaminated soil and groundwater locations.

1) Contaminated Media on the Brownfields Property
Part 1. Soil:……………………………………….……………. ☐ Yes ☒ No ☐ Suspected ☐ Unknown
Part 2. Groundwater:.……………………….……..……. ☐ Yes ☒ No ☐ Suspected ☐ Unknown
Part 3. Surface Water:.……………...……..…………… ☐ Yes ☒ No ☐ Suspected ☐ Unknown
Part 4. Sediment:.……………...……..…………………… ☐ Yes ☒ No ☐ Suspected ☐ Unknown
Part 5. Soil Vapor:…..…………...……..…………………. ☐ Yes ☐ No ☐ Suspected ☒ Unknown
Part 6. Sub-Slab Soil Vapor:……...……..…………….. ☐ Yes ☐ No ☐ Suspected ☒ Unknown
Part 7. Indoor Air:...……..…………………………………. ☐ Yes ☐ No ☐ Suspected ☒ Unknown

2) For the Area of Proposed Redevelopment on the Brownfields Property, attach tabulated data
summaries for each impacted media and figure(s) with sample locations.

PART 1. SOIL
1) Known or suspected contaminants in soil (list general groups of contaminants):
To date, multiple environmental and groundwater sampling events have been conducted within

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
and proximal to the limits of disturbance of the HDD, Flow EQ Basin 2, and Borrow areas of the
project (see Figure 3). Based on data obtained during these investigations, there are no known
or suspected contaminants in soil within the proposed area of disturbance covered under this
EMP. Brief summaries of previous sampling events are provided below and summarized on
Attachment B:

• WPC (2008)
o Six soil borings (BkGrnd1 through BkGrnd5 and EP 1) advanced four feet below
ground surface (bgs) and 12 soil samples were collected for laboratory analysis
of select inorganic constituents.
o Cadmium and selenium were detected at concentrations that exceeded the
Protection of Groundwater Preliminary Soil Remediation Goals (PSRGs ‐ revised
May 2019) in samples collected from the BkGrnd2, BkGrnd3, and BkGrnd 5
sample locations; however, the concentrations did not exceed the
Industrial/Commercial PSRGs.
• Terracon (2017)
o Two soil borings (BG01 and BG‐02) were advanced east and south of the Plant to
provide background soil quality data.
o Samples were analyzed for the eight RCRA Metals and no target analytes
exceeded the Industrial/Commercial or Protection of Groundwater PSRGs.
• S&ME (2020)
o Seven soil borings (B‐93, B‐96, B‐97, B‐98, B‐99, B‐101, and B‐102) completed in
vicinity of the existing stormwater pond, at the HW&IPS site, and in the vicinity
of the EQ Basin.
o 21 soil samples submitted for laboratory analysis of VOCs, SVOCs, and 8 RCRA
metals.
o Laboratory analytical results of the soil sample collected from B‐97 at a depth of
15‐17 ft bgs contained acetone, which is a common laboratory contaminant, at a
concentration of 205 μg/L which exceeded the Protection of Groundwater PRSG.
Seven metals were detected in the soil samples collected at various depths. The
detected metals concentrations were above the laboratory method detection
limits but below their respective Protection of Groundwater and
Industrial/Commercial PSRGs. No other constituents were detected in the soil
samples collected.
• HDR (2021)
o Advanced 7 soil borings (LD‐1, LD‐2, LD‐3, EQ‐1, EQ‐2, EQ‐4/6, and EQ‐5) in
vicinity of the existing Long Creek WWTP and the planned Equalization Basin.
o Chromium concentrations ranged from 9.3 mg/kg to 35.2 mg/kg and exceeded
the Industrial/Commercial PSRG, but are consistent with naturally‐occurring
concentrations.
o Selenium was detected in samples from borings LD‐2 and EQ‐4/6 at
concentrations of 2.3 mg/kg and 3.7 mg/kg, respectively, which exceeded the

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
Protection of Groundwater PSRG.

Locations of prior soil and groundwater assessment activities are shown on Figure 3.

2) Depth of known or suspected contaminants (feet):
No known or suspected contaminants were encountered during assessment activities conducted
between 2007 and 2020. Naturally‐occurring arsenic concentrations that exceeded the Industrial
PSRGs were encountered between 4 and 6 feet below ground surface.
3) Area of soil disturbed by redevelopment (square feet):
Approximately 1,306,800 sq ft (30 acres), based on 60‐90% design. The approximate breakdown
of disturbed areas is as follows:
‐ HDD Site Preparation 2.5 acres
‐ Flow EQ Basin 2 15 acres
‐ Engineered Spoil Area 7.5 acres
‐ Beneficial Reuse Borrow Area 5 acres

If significant modifications are made as design is carried forward, CLT Water will notify NCDEQ to
evaluate the need for amending this EMP. The LOD for this EMP is shown in Figure 3.

4) Depths of soil to be excavated (feet):
Storm Flow EQ Basin No. 2 is expected to be 15‐30 ft of cut in the middle of each cell and ranging
from 15 ft of cut to 15 ft of fill around the perimeter berm. Cuts for ancillary development of
utility trenching, roads, basin components and piping are anticipated to be less than 20 feet
below existing grade. Based on groundwater well monitoring the groundwater level is expected
to be more than 10 feet below the deepest cut of the EQ basin construction.

The two HDD’s under the Catawba River will be approximately 70 feet below the riverbed. The
majority of the drills will be in competent bedrock. The HDD under Long Creek will be
approximately 70 feet below the creek bed with a significant portion it being in competent rock.
Plan and profile plan sheets in the redevelopment plans show the HDD’s with the geotechnical
information illustrated relative to soil/rock type and the areas in and out of the Brownfield
boundary.

The Beneficial Reuse borrow area is expected to have maximum excavations of 15 feet and
would not be deep enough to encounter groundwater as the reuse of the soil will be for
structure fill and lower moisture contents are critical.

5) Estimated volume of soil (cubic yards) to be excavated (attach grading plan):
Based on calculations using the preliminary layout, it is estimated that approximately 155,000
cyds of soil will be excavated this EMP phase.

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The HDD’s are expected to have the approximate breakdown of materials by zone:
Brownfield Soil/Rock Zone: 1000 cyds of soil/rock fines/injected water and groundwater
Non‐Brownfield Zone: 5000 cyds of rock fines/bentonite/injected water
Competent Rock Zone: 4000 cyds of rock fines/bentonite/injected water

The construction of the Flow EQ Basin 2 has an excavation quantity of approximately 95,000 cyds
that will all be used for the basin wall construction and general fill at the site.

Utility relocation work and construction of a new waterline has an estimated excavation of 1500
cyds with all excavated material intended to be used as trench backfill at the same location.

As will be described in the Work and Site Assessment Plan the fill to used as beneficial reuse in
the Cell 4 (Bass pond) is estimated at 90,000 cyds.

Development of the Spoil Area is estimated to require an excavation of 18,000 cyds to construct
the short driveway to the site and the berms for the erosion control measures.

The redevelopment plans include grading plans for all of these areas.

6) Estimated volume of excavated soil (cubic yards) anticipated to be impacted by contaminants: Based on previous sampling, no contamination has been found in the work area of this phase of
the project, therefore, we estimate 0 cubic yards of excavated soil to be contaminated.

7) Estimated volume of contaminated soil expected to be disposed of offsite, if applicable:
Based on the wording of this question “Estimated volume of contaminated soil” we are
estimating 0 cubic yards of soil will be excavated.

Pending approval of the Site Assessment and Work Plan, there will be approximately 90,000
cyds of soil excavated from the site (Brownfield/ReVenture East) and deposited in the empty Cell
4 (Bass pond) which is a non‐Brownfield area as illustrated on Figure 3 labeled Beneficial Reuse
Borrow Area and Cell 4 – Beneficial Reuse Fill Area. A Work and Site Assessment Plan will be
developed and approved by NC Brownfields prior to starting any additional testing for the
assessment. The result of the testing will be approved by NC Brownfields prior to any export of
soil to the Bass Pond.

Part 1.A. MANAGING ONSITE SOIL
If soil is anticipated to be excavated from the Brownfield Property, relocated on the Brownfields
Property, or otherwise disturbed during site grading or other redevelopment activities, please
provide a grading plan that clearly illustrates areas of cut and fill (approximate areas & volumes are
acceptable, if only preliminary data available).

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1) HAZARDOUS WASTE DETERMINATION:
a) Does the soil contain a LISTED WASTE as defined in the North Carolina Hazardous
Waste Section under 40 CFR Part 261.31-261.35?....................................... ☐Yes ☒No
☐ If yes, explain why below, including the level of knowledge regarding processes
generating the waste (include pertinent analytical results as needed).
NA

☐ If yes, do the soils exceed the “Contained-Out” levels in Attachment 1 of the
North Carolina Contained-In Policy?................................................. ☐ Yes ☐ No

b) NOTE: IF SOIL MEETS THE DEFINITION OF A LISTED HAZARDOUS WASTE AND EXCEEDS
THE CONTAINED-OUT LEVELS IN ATTACHMENT 1 TO THE NORTH CAROLINA
CONTAINED-IN POLICY THE SOIL MAY NOT BE RE-USED ON SITE AND MUST BE
DISPOSED OF IN ACCORDANCE WITH DEQ HAZARDOUS WASTE SECTION RULES AND
REGULATIONS.
c) Does the soil contain a CHARACTERISTIC WASTE?.................................... ☐ Yes ☒ No
☐ If yes, mark reason(s) why below (and include pertinent analytical results).
☐ Ignitability Click or tap here to enter text.
☐ Corrosivity Click or tap here to enter text.
☐ Reactivity Click or tap here to enter text.
☐ Toxicity Click or tap here to enter text.
☐ TCLP results Click or tap here to enter text.
☒ Rule of 20 results (20 times total analytical results for an individual
hazardous constituent on TCLP list cannot, by test method, exceed regulatory
TCLP standard)
During the 2020 assessment, total chromium was detected at
concentrations that would have exceeded the Rule of 20. If
the Rule of 20 is exceeded for a given constituent samples will be
submitted for TCLP analyses.

☒ If no, explain rationale:
Existing soils have not been analyzed via TCLP methods to evaluate toxicity as it
applies to the definition of a characteristic hazardous waste; however, soil
quality data collected in the vicinity of the proposed area of disturbance
generally, does not indicate contamination above Industrial/Commercial
Health‐Based PSRGs. Thus, probability that soil is identified as a characteristic
hazardous waste after TCLP testing is low. If the Rule of 20 is exceeded, then a sample must be submitted for TCLP analysis.

d) NOTE: IF SOIL MEETS THE DEFINITION OF A CHARACTERISTIC HAZARDOUS WASTE, THE
SOIL MAY NOT BE RE-USED ON SITE AND MUST BE DISPOSED OF IN ACCORDANCE

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
WITH DEQ HAZARDOUS WASTE SECTION RULES AND REGULATIONS.

2) Screening criteria by which soil disposition decisions will be made (e.g., left in place, capped in
place with low permeability barrier, removed to onsite location and capped, removed offsite):
☐ Preliminary Health-Based Residential SRGs
☒ Preliminary Health-Based Industrial/Commercial SRGs
☒ Division of Waste Management Risk Calculator (For Brownfields Properties Only)
☐ Site-specific risk-based cleanup level. Please provide details of methods used for
determination/explanation.
NA

Additional comments:
Click or tap here to enter text.

3) If known impacted soil is proposed to be reused within the Brownfields Property Boundary,
please check the measures that will be utilized to ensure safe placement and documentation of
same. Please attach a proposed location diagram/site map.
☒ Provide documentation of analytical report(s) to Brownfields Project Manager
☒ Provide documentation of final location, thickness and depth of relocated soil on site map
to Brownfields Project Manager once known
☒ Geotextile to mark depth of fill material.
Provide description of material:
Click or tap here to enter text.

☒ Manage soil under impervious cap ☐ or clean fill ☒
☒ Describe cap or fill:
If contaminated soil is reused within the Brownfields Property Boundary, it will be managed
using a geotextile demarcation layer and a minimum of 2 feet of clean fill material with prior
DEQ Brownfields approval.
☒ Confer with NC BF Project Manager if Brownfield Plat must be revised (or re-recorded if
actions are Post-Recordation).
☒ GPS the location and provide site map with final location.
☐ Other. Please provide a description of the measure:

4) Please describe the following action(s) to be taken during and following excavation and
management of site soils:
Management of fugitive dust from site
☒ Yes, describe the method will include:
Click or tap here to enter text.

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
During excavation and management of soils, on‐site contractor will use water to suppress
potential fugitive dust.

☐ No, explain rationale:
Click or tap here to enter text.

Field Screening of site soil
☒ Yes, describe the field screening method, frequency of field screening, person conducting
field screening:
The HDR Resident Project Representative (RPR) and applicable construction contractor
personnel shall daily observe excavated soils for visual and olfactory indications of
contamination throughout construction. Per the NCDEQ’s Inactive Hazardous Sites Branch
(IHSB) “Guidelines for Assessment and Cleanup” (July 2021), any soil that exhibits
evidence of a release should be field‐screened. The field screening will be performed by
the RPR and during the twice weekly site visits by the environmental professional with a
PID unit. If no visible evidence exists, field screening should be conducted at a rate of 4
screening locations per 62,500 square feet (250 ft. x 250 ft.) of disturbed area. Field
screening locations should be recorded in the field via GPS coordinates and field
screening results should be recorded in a field book.

If evidence of contamination is identified by the field professional, either via visual/
olfactory observations or field‐screening above background, field personnel should refer
to the Sample Collection section below. Background concentrations will be evaluated
daily by recording a minimum of three ambient air measurements prior to the start of
work and while all heavy equipment is off.

An environmental professional (under the purview of a NC PE or PG) shall conduct twice‐
weekly field visits to review field‐screening logs prepared by the RPR, as it relates to
potential for encountering contaminated areas. The environmental professional will also
be conducting PID field screening and be available on an as‐needed basis, if contaminated
material is identified by the RPR or Contractor. If contaminated material is encountered,
sampling of the material will be conducted by the environmental professional, as
described in the “Soil Sample Collection” section below.

☐ No, explain rationale:
Click or tap here to enter text.

Soil Sample Collection
☒ Yes, describe the sampling method (e.g., in-situ grab, composite, stockpile, etc.):
In lieu of specific NCDEQ guidance regarding determination of ambient air quality with a
PID, soil screened with PID that exceeds background screening results by more than 20%
will be stockpiled in accordance Figure 1 (NCBP Diagram of Temporary Containment) of
the EMP and sampled in accordance with the IHSB “Guidelines for Assessment and
Cleanup” and sampled to evaluate re‐use versus disposal options. Background
concentrations will be evaluated daily by recording a minimum of three ambient air
measurements prior to the start of work and while all heavy equipment is off.

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Stockpile(s) will be managed via placement on plastic, covering with plastic sheeting, and
surrounding stockpile with hay bales to prevent contact with storm water as shown in
Figure 1 (NCP Diagram of Temporary Containment). Soil that does exhibit visual or
olfactory signs of contamination will be stockpiled similarly.

Soil stockpiles that have exceeded PID thresholds or that exhibit visual or olfactory signs
of contamination will be divided into equal segments of approximately 100 cubic yards
each. Three hand‐auger borings will be advanced within each segment at random
locations or biased to areas of observed contamination. Soil samples will be collected
from two depths within each boring (based on the highest PID readings), yielding a
minimum of six samples per 100 cubic yard segment. Soil from the six samples will be
composited to produce one composite sample for laboratory analyses. In addition, soil
from two of the six sample locations will be retained as grab samples for VOC laboratory
analysis. Note that grab samples for VOC analysis will be collected directly from the
stockpile and not from the bag used for PID screening.

HDD spoil soils will be tested at the beginning, middle, and end of the drilling in the soil
layer. This does not include the competent rock zones. Samples will be collected and
analyzed for VOC’s, SVOC’s, and RCRA metals and results provided to NC Brownfields
within 48 hours of receipt from the lab.

The assessment results for suspected impacted soils must be submitted to and approved
by DEQ Brownfields prior to onsite re‐use.

☐ No, explain rationale:
Click or tap here to enter text.

If soil samples are collected for analysis, please check the applicable chemical analytes:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium
and silver): Specify Analytical Method Number(s): Click or tap here to enter text.
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): Specify Analytical Method Number(s):
For each 100 cubic yard soil stockpile segment:

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• One composite sample will be collected and analyzed for SVOCs, RCRA
Metals, and Hexavalent Chromium (via SW‐846 Method 7199)
• Two grab samples will be collected and analyzed for VOCs

☒ Check to confirm that stockpiling of known or suspected impacted soils will be conducted
in accordance with Figure 1 of this EMP. Stockpile methodology should provide erosion
control, prohibiting contact between surface water/precipitation and contaminated soil,
and preventing contaminated runoff. Explain any variances or provide additional details as
needed:

☒ Final grade sampling of exposed native soil (i.e., soil that will not be under buildings or
permanent hardscape). Select chemical analyses for final grade samples with check boxes
below (Check all that apply):
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and silver): Specify Analytical Method Number(s): Click or tap here to enter text.
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.): 20% of the samples will be submitted for Hexavalent Chromium analysis with the samples with the highest total Chromium being selected.

Please provide a scope of work for final grade sampling, including a diagram of soil
sampling locations, number of samples to be collected, and brief sampling methodology.
Samples should be collected from 0-2 ft below ground surface, with the exception of VOCs
which should be taken from 1-2 ft below ground surface. Alternatively, indicate if a work
plan for final grade sampling may be submitted under separate cover.
Per NCDEQ request, final‐grade sampling will be performed at regular intervals at
unfinished/uncapped areas in the vicinity of the HDD,Flow EQ Basin 2, Spoil Area, and
within areas where excess soils have been staged within the Brownfield property. A
workplan for final‐grade sampling will be provided under separate cover once excess soil
quantities and locations are identified.

☐ If final grade sampling was NOT selected, please explain rationale:
Click or tap here to enter text.
No variances are expected

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Part 1.B. IMPORTED FILL SOIL

NO SOIL MAY BE BROUGHT ONTO THE BROWNFIELDS PROPERTY WITHOUT PRIOR APPROVAL
FROM THE BROWNFIELDS PROGRAM. According to the Brownfields IR 15, “Documenting
imported soil (by sampling, analysis, and reporting in accordance with review and written
approval in advance by the Brownfields Program), will safeguard the liability protections provided
by the brownfields agreement and is in the best interest of the prospective developer/property
owner.”

Requirements for importing fill:

1) Will fill soil be imported to the site?................................................ ☐ Yes ☒ No ☐ Unknown

2) If yes, what is the estimated volume of fill soil to be imported?
Click or tap here to enter text.

3) If yes, what is the anticipated depth that fill soil will be placed at the property? (If a range
of depths, please list the range.)
Click or tap here to enter text.

4) Provide the source of fill, including: location, site history, nearby environmental concerns,
etc. Attach aerial photos, maps, historic Sanborn maps and a borrow source site history:
If stabilization or erosion control stone is required, virgin material maybe be imported from the
Brownfields Pre‐Approved DEMLR permitted quarries: Martin Marietta Quarry (located at
Beatties Ford Rd, Charlotte; Permit No. 60‐02) or Vulcan Quarry (located at 10526 Old Nations
Ford Rd, Charlotte, NC).

5) PRIOR TO ITS PLACEMENT AT THE BROWNFIELDS PROPERTY, provide a plan to analyze fill
soil to demonstrate that it meets acceptable standards applicable to the site and can be
approved for use at the Brownfields property.
For imported fill from other DEMLR permitted quarries, one soil grab sample will be collected
from the virgin material planned for import to the Brownfields Property. Metals and SVOCs will
be composited with 6 aliquots. Analyses are specified below.

Soil samples for VOCs will be field‐screened using a MiniRAE 3000 photoionization detector (or
similar); samples collected for laboratory analysis will be biased the highest PID readings. Note
that grab samples for VOC analysis will be collected directly from the stockpile and not from the
bag used for PID screening

6) Please check the applicable chemical analytes for fill soil samples. (Check all that apply):
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead,

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
selenium and silver): Specify Analytical Method Number(s): Click or tap here to enter text.
☐ Pesticides: Specify Analytical Method Number(s): Click or tap here to enter text.
☐ PCBs: Specify Analytical Method Number(s): Click or tap here to enter text.
☒ Other Constituents & Respective Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.):
For soil import samples:
• One six‐part composite sample will be collected and analyzed for
SVOCs, RCRA Metals, and Hexavalent Chromium (via SW‐846 Method
7199)
• Two grab samples will be collected and analyzed for VOCs

7) The scope of work for import fill sampling may be provided below or in a Work Plan
submitted separately for DEQ review and approval. Attach specific location maps for in-situ
borrow sites. If using a quarry, provide information on the type of material to be brought
onto the Brownfields Property.
Landscaping soil source:
If needed, organic rich topsoil will be obtained from a commercial landscape material vendor for
use in proposed landscaped areas. CLT Water does not plan to collect samples of landscaping
materials prior to placement at the Site. NCDEQ Brownfields will be notified of the volume of
landscaping material needed and the proposed source of the material prior to placement in
proposed landscaping areas.

Part 1.C. EXPORTED SOIL

NO SOIL MAY LEAVE THE BROWNFIELDS PROPERTY WITHOUT APPROVAL FROM THE
BROWNFIELDS PROGRAM. FAILURE TO OBTAIN APPROVAL MAY VIOLATE A BROWNFIELDS
AGREEMENT CAUSING A REOPENER OR JEOPARDIZING ELIGIBILITY IN THE PROGRAM,
ENDANGERING LIABILITY PROTECTIONS AND MAKING SAID ACTION POSSIBLY SUBJECT TO
ENFORCEMENT. JUSTIFICATIONS PROVIDED BELOW MUST BE APPROVED BY THE PROGRAM IN
WRITING PRIOR TO COMPLETING TRANSPORT ACTIVITIES. Please refer to Brownfields IR 15 for
additional details.

1) If export from a Brownfields Property is anticipated, please provide details regarding the
proposed export actions. Volume of exported soil, depths, location from which soil will
be excavated on site, related sampling results, etc. Provide a site map with locations of
export and sampling results included.
The only soil that is anticipated to be exported from this Brownfields property is soil that may
be used to fill the existing unused landfill cell 4. This site is bounded by the Brownfield East and
Brownfield West on all sides. For the project an estimated 90,000 cyds of soil from the
Beneficial Reuse Borrow Area shown in Figure 3 would be placed and compacted into the non‐
Brownfield cell 4/Bass Pond after approval of the Site Assessment and Work Plan.

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Other soil generated during construction excavation that is not used in areas adjacent to where
it was excavated will be moved to the Spoil Area within the same Brownfields East boundary as
described earlier and shown on Figure 3. This would include the dewatered HDD spoil.

2) To what type of facility will the export Brownfields soil be sent?
☒ Subtitle D/Municipal Solid Waste Landfill (analytical program to be determined by
landfill)
☒ Permitted but Unlined Landfill (i.e. LCID, C&D, etc.) Analytical program to be
determined by the accepting Landfill;
☐ Landfarm or other treatment facility
☒ Use as fill at another suitable Brownfields Property – determination that a
site is suitable will require, at a minimum, that similar concentrations of the same or
similar contaminants already exist at both sites, use of impacted soil will not increase
the potential for risk to human health and the environment at the receiving Brownfields
property, and that a record of the acceptance of such soil from the property owner of
the receiving site is provided to Brownfields. Please provide additional details below.
☐ Use as Beneficial Fill off-site at a non-Brownfields Property - Please provide
documentation of approval from the property owner for receipt of fill material. This will
also require approval by the DEQ Solid Waste Section. Additional information is
provided in IR 15. Please provide additional details below.

3) Additional Details: (if transfer of soil to another property is requested above, please provide
details related to the proposed plans).
If CLT Water chooses to beneficially reuse soil from the proposed development excavations to fill the unused Landfill Cell 4, CLT Water will implement the following procedures. • Submit a workplan plan to assess the Brownfields soils proposed for export. The work plan shall be submitted to the Brownfields Program for review and approval prior to implementation and will be signed and sealed by a NC licensed P.G. or P.E. • Submit a report to the Brownfields Program summarizing implementation of the workplan and documenting historic assessment (if any) of the soils proposed for export. If the results indicate that concentrations exceed the POGs or PSRGs, CLT Water will discuss potential mitigation measures to allow for reuse in Landfill Cell 4 or seek alternate locations for reuse within the Brownfields property. CLT Water will obtain approval from the Brownfields Program prior to transporting soil off the Brownfields property, CLT Water has recently undertaken sampling of the soil in the proposed borrow area (BP‐3, BP‐
9 & BP‐10 on Figure 3) and the Landfill Cell 4 (Pond‐2,4,5,6, & 8 on Figure 3) and those results
have been submitted to the Brownfields Project Manager under separate cover. The results did
not indicate evidence of any contamination in the area.

If, during excavation within the borrow area, the RPR or Environmental Professional suspects
contaminated soils are encountered, the Environmental Professional will implement sampling

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procedures as described in Part 1.B.5) and 6) above. If sampling results indicate that
concentrations exceed the POGs or PSRGs, CLT Water will discuss potential mitigation
measures to allow for reuse within the ReVenture East brownfields property. Re‐use of
impacted (contaminated) soil on the Brownfields Property would require prior Brownfields
review of representative soil data and approval of the planned soil use/placement location.

As required under NC Erosion Control rules measures such as surge stone pads will be
evaluated and implemented to minimize soil deposition from the construction zone to any
public roadways.

Part 1.D. MANAGEMENT OF UTILITY TRENCHES

☒ Install liner between native impacted soils and base of utility trench before filling with clean fill
(Preferred)

☒ Last out, first in principle for impacted soils (if soil can safely be reused onsite and is not a
hazardous waste), i.e., impacted soils are placed back at approximately the depths they
were removed from such that impacted soil is not placed at a greater depth than the original
depth from which it was excavated.

☒ Evaluate whether necessary to install barriers in conduits to prevent soil vapor transport,
and/or degradation of conduit materials due to direct impact with contaminants?
☒ If yes, provide specifications on barrier materials or provide the results of this evaluation in the
Vapor Mitigation Plan. Note that if vapor mitigation is planned for site buildings, utility
corridors will need to be evaluated as part of mitigation designs:
Soil removed from utility conduits during construction will be field‐screened for VOCs using a
PID to evaluate whether barriers should be considered. If applicable, the Contractor will comply
with RCRA Land Use Restrictions (LURs) and Brownfield Program LURs.

If impacts are discovered, then the Environmental Professional will contact the Brownfields
Program to determine if additional VI assessment and/or mitigation is required.

☐ If no, include rationale here:
Click or tap here to enter text.

☐ Unknown, details to be provided in the Vapor Mitigation Plan for site buildings

Other comments regarding managing impacted soil in utility trenches:
The contractor and workers will observe soil for potential impacts during utility installation activities.
Evidence of potential 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 utility work, the contractor will contact the environmental professional to observe
the suspect condition. If the environmental professional confirms that the material may be
impacted, then the procedures outlined in Managing On‐Site Soil above will be implemented. In

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addition, the environmental professional will contact the Brownfields Program within 48 business
hours to advise of the condition.

Should impacted soil be discovered during utility trenching activities, appropriate safety screening
will be performed to protect workers during utility installation activities. Safety screening activities
include monitoring the worker breathing zone with a calibrated PID or similar instrument when
workers are in utility trenches. If safety screening results indicate further action is warranted, the
work zone will be evacuated until appropriate engineering controls (such as use of industrial fans)
are implemented.
The NCDEQ will be consulted to develop a plan to assess potential for soil gas in the utility trench to determine if it is/has the capacity to act as a potential preferential pathway for VI. Vapor intrusion mitigation of the utility trenches, if requested by the NCDEQ Brownfields, will be based on the screening and assessment. VI mitigation measures in utility trenches will be installed in accordance with a work plan approved by Brownfields prior to installation, if necessary.

PART 2. GROUNDWATER

1) What is the depth to groundwater at the Brownfields Property?
Based on investigations performed by S&ME, Inc. between April 2019 and January 2020, the
depth to groundwater ranges from approximately 5 feet bgs under the existing HW&IPS
location to greater than 30 feet under the proposed Storm Flow Equalization Basin No. 2.
2) Is groundwater known to be contaminated by ☐onsite ☒offsite ☐both or ☐unknown
sources? Describe source(s):
Terracon collected groundwater samples from three temporary monitoring wells (TW‐01, 02, 3)
in the vicinity of the Stowe Regional WRRF in September 2017. Ten (10) polyaromatic
hydrocarbons (PAHs) were reported at estimated concentrations (J‐flag values) above the
method detection limit, but below the laboratory reporting limit. Of these, six of the estimated
concentrations exceeded their respective 2L Standards.

S&ME conducted limited monitoring well installation and sampling activities in January 2020 to
provide groundwater quality data within proposed areas of disturbance. Barium was detected
in the groundwater sample collected from well MW‐93, installed within the HW&IPS; however,
the concentration did not exceed the 2L Standard. Barium, total chromium, and bis (2‐
Ethylhexyl) phthalate were detected in the groundwater sample obtained from well MW‐96,
installed in the northwestern corner of the proposed Equalization Basin. The concertation of bis
(2‐Ethylhexyl) phthalate (118 ug/L) exceeded the 2L Standard of 3 ug/L during the initial
sampling event in January 2020; however, a confirmation groundwater sample was collected
from well MW‐96 on March 27, 2020 and bis (2‐Ethylhexyl) phthalate was not detected above
the laboratory reporting limit of 6.0 ug/L.

Review of historic groundwater quality data available via the NCDEQ Division of Waste
Management indicates that there is no known source of bis (2‐Ethylhexyl) phthalate on the
Brownfields site. Bis (2‐Ethylhexyl) phthalate is a common plasticizer used in manufacturing of
PVC, thus, the detection observed during the January sampling event may have been related to

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the PVC well materials and not indicative of a release. Based on this information, the
concentration reported during the January 2020 sampling event is considered to be erroneous.

3) What is the direction of groundwater flow at the Brownfields Property?
Groundwater flow was not evaluated by CLT Water during the limited 2020 assessment work.
Based on historic assessments conducted by others at the Clariant site, the majority of
groundwater that originates beneath the Clariant site is anticipated to flow west toward the
Catawba River, which is away from the work in this EMP phase. There has been no evidence of
any contamination from the Clariant site migrating in the direction of this site.

4) Will groundwater likely be encountered during planned redevelopment activities?
☐Yes ☒No
If yes, describe these activities:
Based on the current design for the facilities to be excavated in this EMP phase and the
geotechnical evaluations at the site no groundwater is anticipated to be encountered with the
surface excavations (Flow EQ Basin 2, Beneficial Reuse soil excavation, Spoil Area, or utility
relocations). Those excavations in this phase are planned to be less than 15 feet in most cases.
The exception is the potential for limited groundwater encounters in the HDD’s prior to entering
the competent rock layer however the HDD contractor will be installing a steel sleeve in the
entry hole down to the rock layer to seal it from the surrounding soil.

No ground water pumping/dewatering activities are planned for this EMP phase. Regardless of the answer; in the event that contaminated groundwater is encountered during redevelopment activities (even if no is checked above), list activities for contingent management of groundwater (e.g., dewatering of groundwater from excavations or foundations, containerizing, offsite disposal, discharge to sanitary sewer, NPDES permit, or sampling procedures).
Open Excavations: If groundwater is encountered and conditions do not allow for evaporation
or percolation, it will be pumped from the excavations and will be monitored daily for visual or
olfactory signs of contamination and twice weekly sampling for lab analysis for VOC’s using EPA
Method 8260. The lab analysis results for the first two sampling events will be requested from
the lab and sent to NC Brownfields for review within 72 hours of sample collection. If
contaminated groundwater is encountered, the Contractor will contact the Environmental
Professional to advise on next steps and to monitor the containerizing of the groundwater
pumped to the surface in bulk storage tanks, test the groundwater for constituents identified in
Part 1.B above, and dispose of contaminated groundwater at an approved offsite facility.
Horizontal Directional Drills: It is possible some groundwater will be encountered at levels just
prior to reaching the competent rock layer however the contractor will be installed a steel
sleeve at the drill initiation location to minimize entry into the drill hole during the work. The
initial drilling and installation of the material in the sleeve may include soil that was in contact
with groundwater but no groundwater pumping will be conducted. Water generated during
the dewatering of the HDD slurry spoil will be discharged to the Charlotte Water sewer
collection system under a temporary discharge permit issued by the Charlotte Water Industrial
Pretreatment section.

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5) Are monitoring wells currently present on the Brownfields Property?.................☒Yes ☐No
If yes, are any monitoring wells routinely monitored through DEQ or other
agencies?..................................................................................................................☐Yes ☒No

6) Please check methods to be utilized in the management of known and previously
unidentified wells.
☐ Abandonment of site monitoring wells in accordance with all applicable regulations. It
is the Brownfields Program’s intent to allow proper abandonment of well(s) as
specified in the Brownfields Agreement, except if required for active monitoring
through another section of DEQ or the EPA.
☒ Location of existing monitoring wells marked
☒ Existing monitoring wells protected from disturbance
☒ Newly identified monitoring wells will be marked and protected from further
disturbance until notification to DEQ Brownfields can be made and approval for
abandonment is given.

7) Please provide additional details as needed:

Please note, disturbance of existing site monitoring wells without approval by DEQ is not
permissible. If monitoring wells are damaged and/or destroyed, DEQ may require that the PD
be responsible for replacement of the well.

PART 3. SURFACE WATER
1) Is surface water present at the property? ☒ Yes ☐ No ☐ Unknown
2) Attach a map showing the location of surface water at the Brownfields Property.
3) Is surface water at the property known to be contaminated? ☐ Yes ☒ No
4) Will workers or the public be in contact with surface water during planned redevelopment
activities? ☒ Yes ☐ No
5) In the event that contaminated surface water is encountered during redevelopment
activities, or clean surface water enters open excavations, list activities for management of
such events (e.g. flooding, contaminated surface water run-off, stormwater impacts):
Surface water is not expected to be encountered within the proposed area of disturbance for
the HDD/Flow EQ Basin 2/Spoils Area.
Monitoring wells MW‐06 and TW‐03 are currently located in close proximity to portions of the
planned HDD work area. These monitoring wells were installed during previous due diligence
activities between 2008 and 2017. It is our understanding that these wells are not sampled regularly
as part of a NCDEQ program. There is no plans to abandon these wells during this phase of the work
and the wells will be protected from disturbance.
Should Charlotte Water determine they need to abandon the wells then well abandonment records
will be copied to the Brownfields Program, and included in the redevelopment summary report.
None of these well are within any RCRA area and are not part of any required regulatory monitoring.

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Surface water was sampled by Charlotte‐Mecklenburg Stormwater Services in July 2016 prior to
restoration activities within Long Creek, upstream of the North Bridge, which is significantly
upstream of the HDD and Flow EQ Basin 2 work area. Nine constituents (2‐butanone, acetone,
aluminum, chloroform, iron, lead, magnesium, and manganese) were identified above the
detection limit. Each constituent was evaluated by Kimley‐Horn using the NCDEQ risk Calculator
(September 2017 version). All concentrations were below levels of concern based on the
analysis. These data were used in preparation of an EMP for the stream restoration project
prepared by Kimley‐Horn in 2018 and subsequently approved by NCDEQ. The EMP obtained by
CLT Water for review during preparation of this Access Roads EMP did not include sampling
locations; CLT Water assumes that the surface water samples were collected upstream of the
North Bridge since the restoration of Long Creek occurred where Long Creek crosses Belmeade
Drive.

If surface water run‐off gathers in an open excavation within an area determined to be
contaminated during construction activities, appropriate worker safety measures will be
undertaken. The accumulated water will be allowed to evaporate/ infiltrate to the extent that
time for dissipation does not disrupt the construction schedule. Should the time needed for
natural dissipation of accumulated water be deemed to potentially impact the construction
schedule, the water will be tested and disposed off‐site (if impacted based on strong odor,
unnatural color, sheen, etc.), or tested and discharged to the storm sewer (if not impacted
above NCDEQ surface water standards) in accordance with applicable municipal and State
regulations.

PART 4. SEDIMENT

1) Are sediment sources present on the property? ☐ Yes ☒ No

2) If yes, is sediment at the property known to be contaminated: ☐ Yes ☐ No ☐ Unknown

3) Will workers or the public be in contact with sediment during planned redevelopment
activities? ☐ Yes ☒ No

4) Attach a map showing location of known contaminated sediment at the property.

5) In the event that contaminated sediment is encountered during redevelopment activities, list
activities for management of such events (stream bed disturbance):
Sediment is not expected to be encountered within the proposed area of disturbance for this
project. The Long Creek stream bed and a buffer on each side up to elevation 569 is within the
FERC boundary in the area of this project phase and therefore not within the Brownfield East
boundary at the project site. For this phase of the project no work is proposed within the stream
except for the HDD’s that will be 50+ feet under the streambed in competent rock.

Sediment sampling was conducted by WPC in 2008 near the project site as a part of a Phase II ESA

27
HDD Flow EQ Basin 2 EMP Version 2, March 2022
completed by Black and Veatch as a part of the due diligence for Charlotte Water’s property
acquisition process (Labeled as LC Sediment and US-Sediment 2 on Figure 3). The samples showed
levels of Chromium (Total and not Hexavalent) and Mercury above NC Protection of Groundwater
Soil Goals but below NC Soil Preliminary Remediation Goals and EPA Region IV Sediment
Screening Levels. The report concluded that the levels were not of concern due to these levels
compared to the standards above and background levels. See summary table in Figure 4.

Sediment sampling was also conducted by CDM in 2002 in a reach of Long Creek located
upstream of the North Bridge, which is significantly upstream of any proposed work in this EMP.
Chromium, copper, lead, thallium, and zinc were detected above laboratory reporting limits, but
several orders of magnitude below the maximum permissible concentrations, per Kimley Horn’s
EMP for the Stream Restoration of Long Creek project (approved by NCDEQ on February 6, 2018).
Sample locations were not readily available but are assumed to have been within the Stream
Rehabilitation project limits, are significantly upstream of this EMP work zone.

The contractor and workers will observe encountered sediment for potential impacts during
excavation activities. Evidence of potential impacted sediment 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 work, the contractor will contact the
environmental professional to observe the suspect condition. If the environmental professional
confirms that the material may be impacted, then the procedures outlined in Managing On‐Site
Soil above will be implemented ‐ this includes stockpiling and sampling. In addition, the
environmental professional will contact the Brownfields Program within 48 business hours to
advise of the condition.

Should impacted sediment be discovered during work, appropriate safety screening
will be performed to protect workers. Safety screening activities will be implemented. If safety
screening results and or sampling results indicate further action is warranted, the work zone will
be evacuated until appropriate engineering controls (such as use of industrial fans) are
implemented.

Erosion control measures will be installed to prevent the migration of contaminated sediment in
the form of contaminated runoff. Stockpiling of sediment will prohibit contact between
contaminated sediment and surface water/precipitation and will be in accordance with the Soil
Stockpile shown in Figure 1.

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HDD Flow EQ Basin 2 EMP Version 2, March 2022

PART 5. SOIL VAPOR
1) Do concentrations of volatile organic compounds at the Brownfields property exceed the following vapor intrusion screening levels (current version) in the following media:
IHSB Residential Screening Levels:
Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
Groundwater:.….☐ Yes ☐ No ☒ Unknown
IHSB Industrial/Commercial Screening Levels:
Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
Groundwater:…..☐ Yes ☐ No ☒ Unknown
2) Attach a map showing the locations of soil vapor contaminants that exceed site
screening levels.
3) If applicable, at what depth(s) is soil vapor known to be contaminated?

4) Will workers encounter contaminated soil vapor during planned redevelopment activities?
☐ Yes ☒ No ☐ Unknown In the event that contaminated soil vapor is encountered during
redevelopment activities (trenches, manways, basements or other subsurface work,) list
activities for management of such contact:
Contaminated soil vapors are not expected to be encountered within the proposed area of
disturbance for this project. If contaminated soil vapor is encountered or ventilation is
warranted, work will temporarily be halted pending discussion with NCDEQ regarding additional
assessment, reporting, and mitigation requirements.

Note that a sub‐slab soil vapor assessment was conducted by Hart & Hickman in 2013, which
resulted in a finding of no unacceptable risk associated with potential vapor intrusion in Building
21, located approximately 5,000 feet northwest of the HW&IPS and Generator building
proposed in this project. Building 21 was reportedly cleared for occupancy by NCDEQ via email
on September 25, 2013.

PART 6. SUB-SLAB SOIL VAPOR
1) Do concentrations of volatile organic compounds at the Brownfields property exceed the
following vapor intrusion screening levels (current version) in sub-slab soil vapor:
IHSB Residential Screening Levels:
Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
Groundwater:.….☐ Yes ☐ No ☒ Unknown
IHSB Industrial/Commercial Screening Levels:
Soil Vapor:………..☐ Yes ☐ No ☒ Unknown
2) Groundwater:…..☐ Yes ☐ No ☒ Unknown If data indicate that sub-slab soil vapor
N/A

29
HDD Flow EQ Basin 2 EMP Version 2, March 2022
concentrations exceed screening levels, attach a map showing the location of these exceedances.
3) At what depth(s) is sub-slab soil vapor known to be contaminated? ☐0-6 inches ☐Other, please
describe:
N/A

4) Will workers encounter contaminated sub-slab soil vapor during planned redevelopment
activities? ☐ Yes ☐ No ☒ Unknown

☐ If no, include rationale here:
Click or tap here to enter text.
5) In the event that contaminated soil vapor is encountered during redevelopment activities, list
activities for management of such contact
Sub‐slab soil vapors are not expected to be encountered within the proposed area of disturbance
for this project.
This phase of development does not include construction or demolition of building slabs; thus,
sub‐slab vapors are not expected to be encountered within the proposed area of disturbance for
this project.

PART 7. INDOOR AIR
1) Are indoor air data available for the Brownfields Property? ☐ Yes ☐ No ☒ Unknown
2) Attach a map showing the location(s) where indoor air contaminants exceed site screening levels.
3) If the structures where indoor air has been documented to exceed risk-based screening levels will
not be demolished as part of redevelopment activities, will workers encounter contaminated
indoor air during planned redevelopment activities? ☐ Yes ☐ No ☒ Unknown

☐ If no, include rationale here:
Click or tap here to enter text.
4) In the event that contaminated indoor air is encountered during redevelopment activities, list
activities for management of such contact:

VAPOR INTRUSION MITIGATION SYSTEM
Is a vapor intrusion mitigation system (VIMS) proposed for this Brownfields Property?
Indoor air is not expected to be encountered within the proposed limits of disturbance for this
project.

Indoor air is not expected to be encountered within the proposed limits of disturbance because there
will be no buildings or enclosed structures encountered, demolished, or constructed for this phase of
development.

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HDD Flow EQ Basin 2 EMP Version 2, March 2022
☐ Yes ☒ No ☐ Unknown

☒ If no or unknown, include rationale here as well as plans for pre‐occupancy sampling, as
necessary:
A VIMS is not necessary for this phase of development. The phase of development addressed in
this EMP does not include construction of buildings or other enclosed spaces. Indoor air is not
expected to be encountered within the proposed limits of disturbance because there will be no
buildings or enclosed structures encountered, demolished, or constructed for this phase of
development.

If yes, ☐ VIMS Plan Attached or ☐ VIMS Plan to be submitted separately
If submitted separately provide date:
Click or tap here to enter text. VIMS Plan shall be signed and sealed by a NC Professional Engineer If no, please provide a brief rationale as to why no vapor mitigation plan is warranted:

Note that approval of this EMP does not imply approval with any vapor intrusion mitigation land
use restrictions or requirements of the recorded or draft Brownfields Agreement and that
separate approval of mitigation measures will be required.

CONTINGENCY PLAN – encountering unknown tanks, drums, or other waste materials

In this section please provide actions that will be taken to identify or manage unknown
potential new sources of contamination. During redevelopment activities, it is not uncommon
that unknown tanks, drums, fuel lines, landfills, or other waste materials are encountered.
Notification to DEQ Brownfields Project Manager, UST Section, Fire Department, and/or other
officials, as necessary and appropriate, is required when new potential source(s) of
contamination are discovered. These Notification Requirements were outlined on Page 1 of this
EMP.

Should potentially impacted materials be identified that are inconsistent with known site
impacts, the DEQ Brownfields Project Manager will be notified and a sampling plan will be
prepared based on the EMP requirements and site-specific factors. Samples will generally be
collected to document the location of the potential impacts.

Check the following chemical analysis that are to be conducted on newly identified releases:
☒ Volatile organic compounds (VOCs) by EPA Method 8260
☒ Semi-volatile organic compounds (SVOCs) by EPA Method 8270
☒ Metals RCRA List (8) (arsenic, barium, cadmium, chromium, mercury, lead, selenium and
silver)

31
HDD Flow EQ Basin 2 EMP Version 2, March 2022
Click or tap here to enter text.

☐ Pesticides: Specify Analytical Method Number(s):
Click or tap here to enter text.

☐ PCBs: Specify Analytical Method Number(s):
Click or tap here to enter text.

☒ Other Constituents & Analytical Method(s) (i.e. Hexavalent Chromium, Herbicides, etc.)
Please note, if field observations indicate the need for additional analyses, they should
be conducted, even if not listed here.
Hexavalent chromium via SW‐846 Method 7199

Please provide details on the proposed methods of managing the following commonly
encountered issues during redevelopment of Brownfields Properties.
During construction, contractors may encounter previously unknown subsurface conditions (e.g.,
USTs, pits, buried waste materials, drums, or other subgrade features) that will require proper
management. Prior to beginning site work, the environmental professional will attend a pre‐
construction kick‐off meeting with the redevelopment contractors to discuss the NCDEQ‐approved
EMP and various scenarios when it would be appropriate and necessary to notify the
environmental professional of the discovery of unknown subsurface features or potentially
impacted media at the site.

In the event of the discovery of unknown subsurface features or impacted media during
redevelopment activities, the actions listed below will be used to assist in appropriate
management of the subsurface condition. Brownfields may elect to request vapor intrusion
sampling or mitigation based on impacts discovered and the sample analysis suite may be modified
based on waste characterization.

Underground Storage Tanks:
Should a previously unreported underground storage tank (UST) be identified during site
development activities, excavation activities in the vicinity of the UST will be put on hold and the
discovery will be reported to the environmental consultant, who will assess the situation and
report to the NCDEQ within 48 hours of discovery. The tank and UST components will be inspected
to evaluate if product remains in the tank. The contents of the tank will be evaluated, analyzed,
and disposed of at a licensed offsite facility in accordance with regulatory requirements and
NCDEQ approval. Unless an alternative approach is approved by NCDEQ, the tank and associated
contaminated soil will be removed in accordance with applicable UST regulations; surrounding soil
and soil at the base of the tank will be screened with a PID and flame ionization detector (FID); the
breathing zone will be monitored using a PID/FID; and confirmatory sampling and/or remedial
activities will be conducted in accordance with NCDEQ Brownfields Program regulatory
requirements. UST closure/ confirmation soil sampling locations will be selected as outlined in the
Guidelines for Site Checks, Tank Closure, and Initial Response and Abatement for UST Releases
(UST Section, NCDEQ Division of Waste Management, February 2019). Samples will be analyzed in
accordance with the suite of analyses identified above.

32
HDD Flow EQ Basin 2 EMP Version 2, March 2022
A letter report will be prepared which documents the UST removal activities and the results obtained within 60 days of the UST removal activities. Photos of the UST components, excavation pits, and impacts will be included in the letter report.

Sub-Grade Feature/Pit:
If a subsurface feature, pit, or impoundment is discovered during site development, excavation
and activities in the vicinity of the feature will be placed on hold and the discovery will be reported
to the environmental professional. The environmental professional will assess the situation and
report to the NCDEQ within 48 hours of discovery. Contents of the feature will be evaluated,
analyzed, and disposed of at a licensed offsite facility in accordance with regulatory requirements
and NCDEQ approval. The subsurface feature will be removed in accordance with applicable
NCDEQ UST or IHSB regulations; surrounding soil and soil at the base of the feature will be
screened with a PID and FID; the breathing zone will be monitored using a PID/FID; and
confirmation sampling and/or remedial activities will be conducted in accordance with NCDEQ
regulatory requirements.

Impacted soil will be managed as summarized in Part 1.A and/or Part 1.C of this EMP. The number
and location of confirmation soil samples and impacted soil samples will be approved by the
Brownfields Program and the samples will be submitted for the analytical suite selected above.

Buried Waste Material – Note that if buried waste, non-native fill, or any obviously filled materials
is encountered, the DEQ Brownfields Program must be notified to determine if investigation of
landfill gases is required:
Should buried waste material be discovered during excavation activities, the contractor will
immediately notify the environmental consultant. The consultant will assess the situation and
report to the NCDEQ within 48 hours of discovery to determine if an NC Brownfields workplan for
methane sampling is required (random pieces or concrete or steel would not be expected to
generate a need for methane investigation). The waste material will be evaluated, analyzed (as
appropriate), and disposed of at a licensed offsite facility in accordance with regulatory
requirements and NCDEQ approval. The waste material will be removed in accordance with
applicable NCDEQ Solid Waste or IHSB regulation, surrounding soil and soil underlying the waste
material will be screened with a PID and FID; the breathing zone will be monitored using a PID/FID;
and confirmation sampling and/or remedial activities will be conducted in accordance with NCDEQ
regulatory requirements.

Impacted soil will be managed as summarized in Part 1.A and/or Part 1.C of this EMP. The number
and location of confirmation soil samples and impacted soil samples will be approved by the
Brownfields Program and the samples will be submitted for the analytical suite selected above.

Re-Use of Impacted Soils On-Site:
Impacted soils are not expected to be encountered during work. If encountered, impacted soils will
be temporarily staged onsite while awaiting results of characterization testing (in accordance with
the “Managing Soils Onsite” section of this EMP) and transported to an offsite facility permitted to
accept the soil, in accordance with the “Export Soil” section of this EMP. Brownfields approval must be obtained prior to soil re-use or soil export.

If unknown, impacted soil is identified on-site, management on-site can be considered after the

33
HDD Flow EQ Basin 2 EMP Version 2, March 2022
project team provides the necessary information, outlined in Part 1.A. Item 11, for Brownfields
Project Manager approval prior to final placement on-site.

If other potential contingency plans are pertinent, please provide other details or scenarios as
needed below:
N/A

POST-REDEVELOPMENT REPORTING

☒ Check this box to acknowledge that a Redevelopment Summary Report will be required for the
project. If the project duration is longer than one year, an annual update is required and will be
due by January 31 of each year, or 30 days after each one‐year anniversary of the effective date of
this EMP (as agreed upon with the Project Manager). These reports will be required for as long as
physical redevelopment of the Brownfields Property continues, except that the final
Redevelopment Summary Report will be submitted within 90 days after completion of
redevelopment. Based on the estimated construction schedule, the first Redevelopment Summary
Report is anticipated to be submitted on 1/20/2023

The Redevelopment Summary Report shall include environment‐related activities since the last
report, with a summary and drawings, that describes:
1. actions taken on the Brownfields Property;
2. soil grading and cut and fill actions;
3. methodology(ies) employed for field screening, sampling and laboratory analysis of
environmental media;
4. stockpiling, containerizing, decontaminating, treating, handling, laboratory analysis and
ultimate disposition of any soil, groundwater or other materials suspected or confirmed
to be contaminated with regulated substances; and
5. removal of any contaminated soil, water or other contaminated materials (for example,
concrete, demolition debris) from the Brownfields Property (copies of all legally required
manifests shall be included).

☒ Check box to acknowledge consent to provide a NC licensed P.G. or P.E. sealed, Redevelopment
Summary Report in compliance with the site’s Brownfields Agreement.

7/13/2022Joselyn Harriger for
35
HDD Flow EQ Basin 2 EMP Version 2, March 2022
Charlotte Water – Stowe Regional WRRF | HDD EQ Basin 2 Spoils Area Environmental Management Plan Figures

Figures
Figure 1 – NCBP Diagram for Temporary Containment
Figure 2 – Not Used
Figure 3 – Site Map: Existing
Sample Locations & Areas of
Disturbance
Figure 4 – 2008 Phase II
Sediment Table
Figure 5 – Spoil Site Haul Route
Map

34
HDD Flow EQ Basin 2 EMP Version 1, Febuary 2022

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PATH: \\CLTSMAIN\GIS_DATA\GIS\PROJECTS\3018_CHARLOTTEWATER\10207739_STOWE_RWRRF_ACCESSRD\7.2_WIP\MAP_DOCS\MXD\EMP\FIGURE3_20220105.MXD - USER: GMARCHICA - DATE: 3/11/2022
STOWE REGIONAL WRRF HDD FLOW EQ BASIN 2 PROJECT
FIGURE 3
ENVIRONMENTAL MANAGEMENT PLAN
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1. BORINGS B-1, B-1A, B-2, B-4, B-5, B-6A, B-6B, B-6C, B-7A, B-7B, B-7C WEREGEOTECHNICAL BORINGS ONLY; NO ANALYTICAL LAB DATA WERE COLLECTED.LODLODLODLODLODLODLODLODLOD
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EPA Region IV Sediment Screening Level
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PATH: \\CLTSMAIN\GIS_DATA\GIS\PROJECTS\3018_CHARLOTTEWATER\10207739_STOWE_RWRRF_ACCESSRD\7.2_WIP\MAP_DOCS\MXD\EMP\FIGURE5_20220210.MXD - USER: GMARCHICA - DATE: 2/10/2022
STOWE REGIONAL WRRF HDD FLOW EQ BASIN 2 PROJECT
FIGURE 5
HAUL ROUTE MAP
Charlotte Water – Stowe Regional WRRF | HDD EQ Basin 2 Spoils Area Environmental Management Plan Attachment A – Construction Schedule

A
Attachment A –
Construction Schedule

Brownfield EMP Phase 2 Schedule
Jan Mar May July Sept Nov Jan Mar May July
Horizontal Directional Drill
Flow EQ Basin 2
Spoil Site Development
Beneficial Reuse Fill
2022
Stowe Regional Water Resource Recovery Facility HDD Flow EQ Basin 2 Spoil Site
Development Schedule
2023
Construction
Construction
Construction
Work Plan Dev & App Construction
Charlotte Water – Stowe Regional WRRF | HDD EQ Basin 2 Spoils Area Environmental Management Plan Attachment B – Redevelopment Plans

B
Attachment B –
Redevelopment Plans

E/LE/LE/LE/L E/L E/L E/L E/L E/L E/L E/LE/L630.6
629.7
617.5
620.5
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634.8
633.4
630.1
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619.5
619.8
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615.5
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605
605610
610 590590595595600600605605BG-02B-76B-77B-78B-80B-97B-98B-99B-101DDS8DDS8XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X XXXDDS10DDS10DDS10DDS20 (NOTE 9)DDS21 (NOTE 9)DDS24D
D
S
2
4DDS25 DDS18 (NOTE 9)DDS18D
D
S
2
2DDS22 DDS22 (NOTE 9)DDS22DDS17 (NOTE 8)DDS17N 561792.45E 1402383.53PI CURVE 5N 562464.51E 1402766.50FENCE CORNERN 562279.67E 1402990.00FENCE CORNERN 562121.00E 1402924.87FENCE CORNERN 562031.78E 1402983.81FENCE CORNERN 561915.77E 1402984.40FENCE CORNERN 561644.00E 1402657.43FENCE CORNERN 561618.95E 1402626.02FENCE CORNERN 561505.25E 1402443.36FENCE CORNERN 562323.80E 1402412.50PLOTTED: 9/28/2021 11:49 AM FILE: C:\pw_working\bvw_americas\d1333509\C-04-000.dwgFD9000A
PRELIMINARY-NOT FOR CONSTRUCTIONCIVIL
STOWE PARTIAL SITE PLAN
SITE GRADING, STAKING & EROSION CONTROLC-04-103--401825JGC, RDAKTHSEPTEMBER 29, 20216/18/2021 EARLY WORK PACKAGE NO. 2 1 JGC ZLC RDA
9/29/2021 EARLY WORK PACKAGE NO. 3 2 JGC ZLCSENSITIVE PROJECT - DO NOT REPRODUCED401825-C1
PROJECT NO.SHEETOF011/2IF THIS BAR DOES NOTMEASURE 1" THEN DRAWINGIS NOT TO FULL SCALEDATE:DESIGNED:APPROVED:CHECKED:DETAILED:REVISIONS AND RECORD OF USE NO.BY CHK APPDATE
CHARLOTTE WATER
401825Black & Veatch International Company
Business License No. F-0794
10925 David Taylor Drive, Suite 280
Charlotte, North Carolina 28262
MOUNT HOLLY PUMPING STATION AND
STOWE HEADWORKS & INFLUENT PUMPING STATION80'40'20'040'SCALE 1"=40'N 562300N 562200N 562400
E 1402500E 1402600E 1402700E 1402800E 1402900E 1403000E 1402400E 1402300N 562000
N 561900
N 562100
N 561700
N 561600
N 561800
N 561500
MATCH LINE - SEE SHEET C-04-102 FOR CONTINUATION
MATCH LINE - SEE SHEET C-04-105 FOR CONTINUATION25
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TCONTRACTOR TRAILER,PARKING, AND STAGINGAREA (SEE NOTES 2 & 4)DIVERSION DITCH(TYP)DDC-14-503SEDIMENT TRAP(TYP)STC-14-503ST-9003SILT FENCE(TYP)STC-14-503MATCH LINE - SEE SHEET C-04-104 FOR CONTINUATION
MATCH LINE - SEE SHEET C-04-106FOR CONTINUATION
NOTES:1.SEE GENERAL NOTES ON C-00-001. SEE C-13-601 FOR STORM DRAIN STRUCTURE AND PLANT DRIVE SCHEDULES.2.APPROXIMATE LIMITS OF TEMPORARY GRAVEL CONSTRUCTION STAGING/PARKING AREA. ANY NECESSARY GRADING IS TO BE PERFORMED AT THEDISCRETION OF THE CONTRACTOR. CONTRACTOR SHALL ADJUST LIMITS AND ASSOCIATED EROSION CONTROL MEASURES IN FIELD AS NECESSARYTHROUGHOUT CONSTRUCTION. REFER TO TEMPORARY FACILITIES AND CONTROLS SPECIFICATION FOR GRAVEL PLACEMENT REQUIREMENTS.FOLLOWING COMPLETION OF CONSTRUCTION, STAGING/PARKING AREA SHALL BE RESTORED TO PRE-CONSTRUCTION CONDITIONS.3.ALL TREES, STUMPS AND BRUSH SHALL BE REMOVED TO EXTENTS SHOWN OR AS REQUIRED AND AREA SHALL BE SEEDED.4.CONTRACTOR TRAILER, PARKING, AND STAGING AREA LIMITS SHALL BE ADJUSTED THROUGH OUT CONSTRUCTION WITH CONSTRUCTION OF THE NEWACCESS DRIVE.5.CONTRACTOR SHALL ADJUST LOCATION OF CONSTRUCTION ENTRANCE ALONG ACCESS DRIVE AS NEEDED. PROVISIONS SHALL BE PROVIDED BYCONTRACTOR TO FACILITATE STORM WATER FLOW IN EXISTING DRAINAGE SWALE UNDER CONSTRUCTION ENTRANCE.6.RIP-RAP OR EXCAVATED ROCK SLOPE STABILIZATION SHALL BE PROVIDED AROUND HEADWALL TO PERMANENTLY STABILIZE ALL SLOPES STEEPER THAN3:1. SEE DETAIL SS ON C-14-501.7.CONSTRUCT SEDIMENT PIT 6' LONG X 4' WIDE X 2' DEEP AND SLOPE SURROUNDING GRADE TO PIT TO THE EXTEND POSSIBLE DURING CONSTRUCTION.LINE PIT WITH MINIMUM 6" LAYER OF NCDOT CLASS B EROSION CONTROL STONE.8.SHIFT LOCATION OF SEDIMENT BASINS, SEDIMENT TRAPS, DIVERSION DITCHES, AND SILT FENCE AS NEEDED THROUGHOUT THE DURATION OFCONSTRUCTION TO CONTROL SITE RUNOFF AND ALLOW FOR COMPLETION OF THE WORK. PROVIDE POSITIVE SLOPE TO ALL DIVERSION DITCHES.9.DIVERSION DITCH DDS22 SHALL BE INSTALLED PRIOR TO COMPLETION OF GRADING AND CONSTRUCTION OF STOWE EQ BASIN NO. 2. FOLLOWINGCOMPLETION OF GRADING, DIVERSION DITCHES DDS18, DDS20, AND DDS21 SHALL BE INSTALLED AND DIVERSION DITCH DDS22 SHALL BE RELOCATED TODDS17 , DDS19 , DDS23, AND DDS26.EC-13-505HEADWALL(NOTE 6)24" SDSTOWE STORM FLOWEQUALIZATION BASIN NO.2(SEE M-40-101)ASPHALT PAVEMENT(TYP)HC-13-50312'(TYP)12'(TYP)12'(TYP)12'(TYP)R
4
0
'POTENTIAL FUTURESTOWE STORM FLOWEQUALIZATION BASIN NO.3611.5019'611.50LIMITS OF DISTURBANCE(TYP)N 561400STOWE RWRRFSECONDARYENTRANCE GATEGC-13-502CHAIN LINK FENCE(TYP)AUTOMATIC FENCEGATELC-13-503RRC-14-503ROCK RINGINLETSD-9005MATCH LINE - SEE SHEET C-04-108FOR CONTINUATION19
'DDS22
(NOTE
9
)DDS23
(NOTE
9
)DDS19 (NOTE 9)GALVANIZED CHAINLINK FENCEGRAVEL DRIVE(TYP)KC-13-503GALVANIZED CHAINLINK FENCEBLACK POLYMER COATEDCHAIN LINK FENCEMH-9017PLANT DRIVE BGALVANIZED CHAINLINK FENCEBLACK POLYMER COATEDCHAIN LINK FENCEBACKFLOWPREVENTERWATER METERPLANT DRIVE ABLACK POLYMER COATEDCHAIN LINK FENCEMH-9015MANHOLE (TYP)Base of Basin is at590'. Existingelevations 595-610 Ft.5 to 20 ft of cut withinbasin. Drain pipingbelow basin base.Existing Gravel Road to berelocated to here. Utilityrelocations also included.
FOR BIDDING PURPOSES ONLY - NOT RELEASED FOR CONSTRUCTIONFlow EQ Basin 2 Liner System
FOR BIDDING PURPOSES ONLY - NOT RELEASED FOR CONSTRUCTIONFlow EQ Basin Drain Line (pg 2)
FOR BIDDING PURPOSES ONLY - NOT RELEASED FOR CONSTRUCTIONFlow EQ Basin 2 Drain Lines(pg 1)
Existing vs Proposed Cut/Fill
Cut and Fill ReportMount Holly PS
Job: Section: 013870 07/16/2021 15:29:28
Grid/Subgrid
Fill Area Threshold 0.01 Ft
Area of Fill (SF) 751,388
Area of Cut (SF) 412,369
1,167,581Total Work Area (SF)
4,256.98 x 2,483.67Section size (Ft)
Cut Area Threshold 0.01 Ft
All units in Cubic Yards
15.00/7.50
Bank Compacted Expanded Comp / Exp (%)
Stripping
14,378 14,378 14,378 /
14,378 14,378 14,378Stripping Total
6,032 6,032Export Stripping
Cut
112,933 112,933 112,933 /
Cut Total 112,933112,933112,933
Export Cut
6,032 6,032Total Export (Stripping and Cut)
Fill
In Place Fill Required 121,279
Import Fill
121,279 121,279 121,279Stripping and/or Cut Used as Fill
Topsoil Replacement Required
Topsoil Replacement
Topsoil Replacement Obtained On Site
Import Topsoil
Powered by InSite SiteWork™1/1Mount Holly PS
Strip 4" of topsoilwithin site boundary
WBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWB WB WBWBWBWBWBWBWBWB WB WB WB WB WB WB WB WB WB WBWBWBWB WB WB WB WB WB WBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWBWB
LOD LODLODLODLODLODLODLODLODLODLODLODLOD LOD
LOD
LOD
LOD LOD100' BUFFER100' BUFFERLONG CREEK
24'24'SLURRY PONDCONSTRUCTIONACCESS ROADTO STOWE WRRFNORTHERN BRIDGENORTHERNENTRANCE TOSTOWE WRRFOVERHEADELECTRICCAROLINA THREADTRAIL (EXISTINGLOCATION)SITE BUFFERPROPERTYBOUNDARYDEED RESTRICTIONEASEMENTPROPOSED CHARLOTTE WATERPROPERTY BOUNDARY55,300 CYNON-STRUCTURALSOIL STOCKPILE22,200 CYSTRUCTURALSOIL STOCKPILE45LF OF 18"HDPE CULVERT56LF OF 18"HDPE CULVERT42LF OF 18"HDPE CULVERTLIMITS OFDISTURBANCE =9.23 AC115LF OF 18"HDPE CULVERTNORTH CROSSSECTIONSOUTH CROSSSECTIONACCESS ROADCROSS SECTION1001000200SCALE IN FEETCIVIL STOCKPILE AREA01C10201C102.dwg1" = 100'---B2ISSUEDESCRIPTIONPROJECT MANAGERPROJECT NUMBER01"2"FILENAMESCALESHEETDATECDA1345678CHARLOTTE WATERSTOWE REGIONAL WATERRESOURCE RECOVERY FACILITYWILL SHULL, PE10259676LOD
LAYDOWN AREACIVIL STOCKPILE CONCEPTUAL PLAN EROSION & SEDIMENTCONTROL BMPBorrow Area for Construction Access RoadCut AreasFill AreasDRAINAGE SWALE
620
615
610
605
600
595
590
585
580
575
570
570 570 570
570
575
580
585
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600
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635630
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625625
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.3LC-04611.53LC-505579.02SKATEPARK
APPROXBASEBALLBASEBALLPLANIMETRY OBSCURED PLANIMETRY OBSCURED
FENCE OBSCUREDW/2T W/TFRENCH

DRA
INDIDUGOUTDUGOUTDIDIW/LT W/LTW/LTHWUNPAVEDUNPAVEDUNPAVEDUNPAVEDUNPAVEDUNPAVED UNPAVEDUNPAVEDUNPAVED
WL 609.8SCATTERED D
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TREESSCATTERED DEAD

T
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APPROXAPPROX
APPR
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.
1
UNPAVED
UNPAVEDUNPAVEDUNPAVEDUNPAVEDUNPAVEDUNPAVEDUNPAVED
UNPAVED
UNPAVED UNPAVEDUNPAVEDUNPAVEDUN
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AVED
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DUEUEUEUEUEWWWgate
WLOCAL OR
IGIN

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MOUNT
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LC
-
04N =
564
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18E = 140
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53GROUND FACTOR =
1
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GR
IDFACTOR =

0
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9848393P/LP/LP/L P/LWWWWWWWWWWWWWWW4" SS12" RSI18" RSI2" SW 2" SW2" SW 2" SW4" SW4" SW3" SW24" RSI24" RSI24" SS (ABANDONED)18" SEWER24" SS (ABANDONED)16" SS(ABANDONED)2" SWSS (ABANDONED)14" SS (ABANDONED)2" SW16" SS (ABANDONED)3" PW24" RSI16" FM12" FM14" FM14" MLSS14" MLSS 20" RJ TEEABANDONED WATER LINE 20" DCFM14" WAS14" WAS24" CLA4" A8" D24" CLA24" CLA 24" MLSS 6" PVC 24" MLSS24" MLSS14" SUP4" A4" A 8" D24" CLA24" CLA24"EFF24" CLA 14" SUP6" PVC 24" CLA12" RAS 12" RAS12" RAS24"MLSS2" P2" P2" P2" P2" P 2" PVC6" W ACPHEADWORKS(ABANDONED)SWITCHGEARROOMTRANSFORMERA/E INFLUENTSTRUCTUREWWWWWWWWWUEUEUE18" RSI
WWWWP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/L
P/LP/LP/LP/LP/L593.4 591.5592.5586.5587.7 576.1575.5569.7574.3 587.5587.4588.6586.7582.4593.6 580.5 577.5578.9 583.8572.2568.6 567.4 569.5568.9570.3568.2568.8 574.4583.6 572.3 578.7579.3579.1573.2575.8581.2585.5570.7575.9579.2579.2574.8575.7574.9578.5582.8583.8577.7 578.1578.4578.5578.3578.7580.8581.6 582.7585.6579.1566.2572.2578.4578.8574.5 578.7580.5579.5578.8598.5595.2 P/LSSMH RIM = 576.25 (2.75' DIA)54" DIP INV IN = 557.4624" INV IN = 559.5354" DIP INV. OUT = 557.39SSMH RIM = 570.6354" INV IN (NE) = 557.30UNK" INV IN (W) = 560.4254" INV. OUT (SW) = 557.17SSMH RIM = 578.3054" INV IN (NE) = 557.16UNK INV IN (E) = 573.9354" INV. OUT (SW) = 557.098" DIPINV IN = 575.60INV OUT = 573.058" DIPINV IN = 575.80INV OUT = 575.60B-01B-02B-04B-05B-16B-17B-18B-19B-20B-21B-22B-23B-24B-25B-26B-29B-30B-65B-66B-67B-68B-69B-70SB-01SB-02SB-09SB-10B-71B-72B-73B-105B-106B-107B-10830+210+005+0010+0015+0020+0025+00B-25PWRSMPWRSMGRANITEROCKSP-SMB-24SMMLPWRGRANITEPWRGRANITESP-SMB-23MLPWRPWRGRANITECHB-22PWRSMSMMLB-21CLB-71SMPWRMQDMQDGABBROSMB-72MLSMPWRMQDGABBROMHB-73CLMLSMPWRMQDMHB-17SMPWRCLB-18CL-MLPWRMLB-16CLSMSP-SMPWRSMB-26CLSMPWRMLPWRB-29SCCLSMPWR451213433950+50+1413324431396150+7550+21724303850+5250+26232850+50+50+50+50+50+350+50+50+50+50+50+50+50+50+50+50+6050+12201522272510251718285950+50+911131622315866558550+50+PWRSM2729555350+50+50+50+537999132237594350+50+846445511141620165350+50+50+50+50+333850+50+50+41753197050+50+50+122GWGWGWGWGWGWGWGWOFFSET 16.66'OFFSET 90.18OFFSET 64.43'OFFSET 58.80'OFFSET 80.93'15.8% GRAVEL2.7% GRAVEL6.5% GRAVELRQD 78RQD 93RQD 82RQD 83RQD 93RQD 67RQD 65RQD 90UCS 12562 PSIUCS 13169 PSIUCS 11763 PSIUCS 16293 PSIUCS 13171 PSI0.2% GRAVELRQD 25RQD 56RQD 37RQD 38RQD 0RQD 100RQD 100RQD 95RQD 88RQD 78UCS 13316 PSIUCS 22308 PSIUCS 17241 PSIUCS 13197 PSIUCS 17034 PSI2.1% GRAVELRQD 83UCS 14577 PSIRQD 100RQD 79UCS 6398 PSIRQD 0RQD 59UCS 7089 PSIRQD 71UCS 3621 PSIRQD 63RQD 92RQD 76RQD 82RQD 52UCS 6369 PSIUCS 10078 PSIRQD 52RQD 64RQD 18RQD 42RQD 98RQD 100RQD 100GABBRORQD 78RQD 94RQD 64RQD 80RQD 86RQD 100RQD 88RQD 92RQD 92RQD 94RQD 1002.6%GRAVEL0.4%GRAVEL1.4%GRAVEL13.9%GRAVELRQD 0RQD 0RQD 26RQD 96RQD 100RQD 100RQD 100UCS 17117 PSIRQD 0RQD 78RQD 28RQD 56RQD 64RQD 48RQD 80RQD 22RQD 92UCS 35672 PSIUCS 32312 PSIUCS 17426 PSIUCS 32003 PSIUCS 23559 PSIUCS 27389 PSIUCS 34146 PSIUCS 20769 PSIUCS 43446 PSIUCS 22000 PSIUCS 49639 PSI1.2%GRAVELUCS 32092 PSIUCS 27724 PSIRQD 8250+SP-SM31B-19OFFSET 240.8850+50+SMMLSM542515293650/0.527295750/0.450/0.350/0.350/0.150/0.3RQD 0RQD 14RQD 100RQD 78RQD 80RQD 46RQD 26RQD 58RQD 66RQD 62RQD 88UCS 25869 PSIUCS 28750 PSIUCS 21465 PSIB-107OFFSET 24.76MHMLSMMLPWRSMPWRMQDUCS 25592 PSI24440460480500520540560580600620640660680440460480500520540560580600620640660680-2+00-1+000+001+002+003+004+005+006+007+008+009+0010+0011+0012+0013+0014+0015+0016+0017+0018+0019+0020+0021+0022+0023+0024+0025+0026+0027+0028+0029+0030+0031+0032+0017.8'3021.0 FEETDRILL LENGTH: 3038.0 FEET14°CATAWBA RIVERLONG CREEK77.0'67.2'14°STA 0+98.5924" RSIEL 577.3±DRILL EXITSTA 0+00.00 EL 577.28PT2STA 1+88.00 EL 531.44PC2STA 5+26.69 EL 489.85
PT1
STA 24+99.96 EL 489.85
PC1
STA 28+62.84 EL 535.34
DRILL ENTRY
STA 30+21.00 EL 572.81
STA 29+08.49
EX 24" RS
INV EL 559.53±
STA 28+83.81
EX 54" SS
INV EL 557.46±
STA 1+56.0918" SDEL 575.1±STA 2+09.56ABANDONED 12" FMEL 570.0±STA 2+22.6020" FMEL 571.81±STA 5+94.0714" FMEL UNKNOWN
NOTES:1.SEE GENERAL NOTES ON DRAWING C-00-001.2.PC AND PT ARE IN THE DIRECTION OF DRILLING AS SHOWN BELOW INPROFILE.3.APPROXIMATE LOCATION OF EXISTING UTILITIES ARE SHOWN. THECONTRACTOR IS RESPONSIBLE FOR ABOVE AND BURIED UTILITYFIELD LOCATION, PROTECTION AND CLEARANCE, AS NOTED BY THECONTRACT DOCUMENTS.4.COMPRESSIVE STRENGTH (UCS AS SHOWN ON THE PROFILE) OF THEROCK CORES WERE DETERMINED BY PREPARING THE SAMPLES PERASTM D4543-08.5.PROFILE FOLLOWS THE CENTERLINE OF BOTH THE DUAL MOUNTHOLLY FORCEMAIN.6.ONLY BORINGS WITHIN 250 FT OF THE FORCE MAINS ARE SHOWN INTHE PLAN VIEW. NOT ALL BORINGS SHOWN IN THE PLAN AREINCLUDED IN THE PROFILE.7.DRILLED PATH NOTES:A. DRILLED PATH STATIONS ARE IN FEET BY HORIZONTALMEASUREMENT AND ARE REFERENCED TO CONTROLESTABLISHED FOR THE DRILLED SEGMENT.B. DRILLED PATH COORDINATES REFER TO CENTERLINE OF PILOT.8.PILOT HOLE TOLERANCES: THE PILOT HOLE SHALL BE DRILLED TOTHE TOLERANCES LISTED BELOW. HOWEVER, IN ALL CASES,RIGHT-OF-WAY AND EASEMENT RESTRICTIONS AND CONCERN FORADJACENT EXISTING FACILITIES SHALL TAKE PRECEDENCE OVERTHESE TOLERANCES.A. ENTRY POINT: UP TO 10 FEET FORWARD OR BACK FROMDESIGNED ENTRY POINT; UP TO 5 FEET RIGHT OR LEFT OF THEDESIGNED ALIGNMENT.B. EXIT POINT: UP TO 10 FEET SHORT OR 10 FEET LONG RELATIVETO THE DESIGNED EXIT POINT; UP TO 5 FEET RIGHT OR LEFT OFTHE DESIGNED ALIGNMENT.C. ELEVATION: UP TO 2 FEET ABOVE AND 15 FEET BELOW THEDESIGNED PROFILE, EXCEPT WHERE PTE FM CROSSES MHTFM,WHERE A MINIMUM OF 10 FEET SHALL BE MAINTAINED BETWEENBORE HOLES.D. ALIGNMENT: UP TO 5 FEET RIGHT OR LEFT OF THE DESIGNEDALIGNMENT.E. CURVE RADIUS: THE MINIMUM ALLOWABLE RADIUS IS 1,000FEET BASED ON A 3-JOINT AVERAGE.9.PROTECTION OF EXISTING FACILITIES: CONTRACTOR SHALLUNDERTAKE THE FOLLOWING STEPS PRIOR TO COMMENCINGDRILLING OPERATION:A. CONTACT THE UTILITY LOCATION/NOTIFICATION SERVICE FORTHE CONSTRUCTION AREA.B. LOCATE AND STAKE ALL EXISTING UNDERGROUND FACILITIES.ANY FACILITIES LOCATED WITHIN 10 FEET OF THE DRILLED PATHSHALL BE EXPOSED.C. MODIFY DRILLING PRACTICES AND DOWNHOLE ASSEMBLIES ASNECESSARY TO PREVENT DAMAGE TO EXISTING FACILITIES.10.ADDITIONAL BORINGS WERE DRILLED FOR STRUCTURES BUT WERESHALLOW AND DOES NOT IMPACT PROFILE SHOWN BELOW.11.REFER TO DRAWING C-01-101 FOR RIG/PIPE SIDE DRILL ENTRY/EXITCOORDINATES.60'30'15'0'30'VERTICAL SCALE 1"=30'21" MHTFM (26" OD)EXISTING GRADEEX 24" RS54" LONG CREEKINTERCEPTOR15" RCPR 1400'R 1500'150'75'0'150'300'HORIZONTAL SCALE 1"=150'FILL AREAAPPROX 20.0'24" VCPPLOTTED: 6/17/2021 7:09 PM FILE: C:\pw_working\bvw_americas\d1386024\C-01-000.dwgFD10000
PRELIMINARY - NOT FOR CONSTRUCTIONCIVIL
MOUNT HOLLY TRANSFER FORCE MAINS
PLAN AND PROFILEC-01-104--401825JGCKTHJUNE 18, 20216/18/2021 EARLY WORK PACKAGE NO. 2 1 JGC SO JMO34" PTE-2 (42" OD)21" MHTFM-1 (26"OD)FEMA 100 YR FLOODPLAINFUTURE LAND USE CONDITIONSFEMA 100 YR FLOODPLAINEXISTING LAND USE CONDITIONSCOMMUNITY FLOODWAYPRELIMINARY TREATMENTEFFLUENT FORCE MAINSD401825-C1
PROJECT NO.SHEETOF011/2IF THIS BAR DOES NOTMEASURE 1" THEN DRAWINGIS NOT TO FULL SCALEDATE:DESIGNED:APPROVED:CHECKED:DETAILED:REVISIONS AND RECORD OF USE NO.BY CHK APPDATE
CHARLOTTE WATER
Black & Veatch International Company
Business License No. F-0794
10925 David Taylor Drive, Suite 280
Charlotte, North Carolina 28262
MOUNT HOLLY PUMPING STATION AND
STOWE HEADWORKS & INFLUENT PUMPING STATION RIG SIDELIMITS OFDISTURBANCEFEMA 100 YRFLOODPLAIN ELEVATIONMOUNT HOLLYWATER RECLAMATIONFACILITYFEMA FLOODWAYCATAWBA RIVERSTOWE STORM FLOWEQ BASIN NO.1STOWE DAY TANK NO.2STOWE DAY TANK NO.1STOWE EQUALIZATIONPUMPING STATIONPIPE SIDELIMITS OF DISTURBANCEFEMAFLOODWAYLONGCREEKFEMA 100 YRFLOODPLAIN ELEVATIONFEMA FLOODWAYFERC MANAGEMENTBOUNDARYCOMMUNITY FLOOPLAIN100' WATERQUALITY BUFFER LINEDELINEATEDWETLAND BOUNDARYFERCMANAGEMENT BOUNDARYMOUNT HOLLYPUMPING STATION14" FM24" RSI18" SD12" FM20" FM16" FM12" FMN 564000N 564500E 1399500N 563500E 1400500E 1400000N 563000E 1401000E 1401500N 562500E 1402000E 140250021" MHTFM-2 (26" OD)34" PTE-1 (42" OD)20" DCFMPIPE SIDE 1PIPE SIDE 2DRILLEXIT PITSDRILL ENTRY PITSRIG SIDE 2RIG SIDE 1CONDUCTOR CASING,130' MINIMUM - SEEHORIZONTAL DIRECTIONALDRILLING SPECIFICATIONBORROW PITLIMITS OF DISTURBANCE6/22/2021 EARLY WORK PACKAGE NO. 3 1SENSITIVE PROJECT - DO NOT REPRODUCE2Outside of Brownfield boundaryCompetent Rock ZoneRed Zone:Solids Spoil = 452CY *1.25 (swell factor) = 565CYLiquids Spoil = 446,250 GalCombined spoils after dewatering: 2,550 CY (includes residual waterand swell factor)Green Zone:Solids Spoil = 336 CY *1.25 (swell factor) = 420 CYLiquids Spoil = 332,000 GalCombined spoils after dewatering: 1,900 CY (includes residual waterand swell factor)Brownfield Zone:Solids Spoil = 98 CY *1.25 (swell factor) = 122 CYLiquids Spoil = 96,750 GalCombined spoils after dewatering: 550 CY (includes residual waterand swell factor)
460470480490500510520530540550560570580590600610620630640650660460470480490500510520530540550560570580590600610620630640650660-1+000+001+002+003+004+005+006+007+008+009+0010+0011+0012+0012+75B-108B-107B-106B-105OFFSET 72.00OFFSET 43.00OFFSET 24.83OFFSET 25.32SMMLSMMLPWRSMPWRMQDMHMLSMMLPWRSMPWRMQDCLCHMLMLSCCRYSTALINEROCKSOILSEAMQUARTZCRYSTALINEROCKMQDCHMLMLSMPWR4235101820286650/5"50/5"50/5"67971850/0.5RQD 12RQD 0RQD 22RQD 0RQD 0RQD 0RQD 0RQD 36RQD 84RQD 100RQD 86RQD 90RQD 80RQD 0542224515293650/0.527295750/0.450/0.350/0.350/0.150/0.3RQD 0RQD 14RQD 100RQD 78RQD 80RQD 46RQD 26RQD 58RQD 66RQD 62RQD 88789715103850/0.4172650/0.350/0.350/0.350/0RQD 20RQD 10RQD 40RQD 82RQD 98RQD 76SMMHPT1STA 3+24.82 EL 530.00
PC1
STA 9+45.11 EL 530.00 1119.9 FEETDRILL LENGTH: 1299.0 FEET625610615620610615620620615610610610610610610615610615620615610605600595590585580575
570
615630625620615615610605600
595
590
585
580
575
570
570570570
570
575
585590
585
580
575
570 570575580
580580
E/LE/L628.8 611.3 600.6588.6609.8 618.6 615.4616.7 617.8616.5619.7
568
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4
568
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4
567
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7
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7
568.
8
568.
4
56
8
.
4
56
7
.
9
569
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6
608.3630.7 617.3 609.8612.9609.3611.2 610.1 610.5
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8
568
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584
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2
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569
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579
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8
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3
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567
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6
586.8594.9622.8622.7623.8624.6 624.7623.5618.6 615.6610.2609.2 615.7611.7610.6 617.2 619.7616.1614.4617.2622.1
568
.
5
619.2 618.4616.9
569.
2
58
2
.
1
581
.
7
57
8
.
5
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.
8
579
.
6
609.2 608.1 608.3 622.8
568.
2
568
.
6
568
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3
568
.
2
57
9
.
5
578
.
9
58
4
.
958
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571.8 576.4578.4610.7609.3
FR
E
N
C
H

D
R
A
I
N
WL 609.8UNPAVEDUNPAVED
WWWWWWWWWWWWWWP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/LP/L
P/L
P/LP/LP/LP/LSSMH RIM = 570.6354" INV IN (NE) = 557.30UNK" INV IN (W) = 560.4254" INV. OUT (SW) = 557.17SSMH RIM = 578.3054" INV IN (NE) = 557.16UNK INV IN (E) = 573.9354" INV. OUT (SW) = 557.098" DIPINV IN = 575.60INV OUT = 573.058" DIPINV IN = 575.80INV OUT = 575.6058
4
58
3
582581
580
578
577570
575622621620619618617616615614613612611610611612613614615 616617618 613612615614579 11+200+001+002+003+004+005+006+007+008+009+0010+0011+00B-02B-05B-17B-18B-19B-20B-65B-66B-67B-69B-70SB-01SB-10B-73B-105B-106B-107B-1080+001+002+003+004+005+006+007+008+009+0010+00PLOTTED: 6/17/2021 6:56 PM FILE: C:\pw_working\bvw_americas\d1386024\C-02-000.dwgFD10000
PRELIMINARY - NOT FOR CONSTRUCTIONCIVIL
PRELIMINARY TREATEMENT EFFLUENT FORCE MAINS
PLAN AND PROFILEC-02-105--401825JGCKTHJUNE 18, 20216/18/2021 EARLY WORK PACKAGE NO. 2 1 JGC SO JMO
D401825-C1
PROJECT NO.SHEETOF011/2IF THIS BAR DOES NOTMEASURE 1" THEN DRAWINGIS NOT TO FULL SCALEDATE:DESIGNED:APPROVED:CHECKED:DETAILED:REVISIONS AND RECORD OF USE NO.BY CHK APPDATE
CHARLOTTE WATER
Black & Veatch International Company
Business License No. F-0794
10925 David Taylor Drive, Suite 280
Charlotte, North Carolina 28262
MOUNT HOLLY PUMPING STATION AND
STOWE HEADWORKS & INFLUENT PUMPING STATION NOTES:1.SEE GENERAL NOTES ON DRAWING C-00-001.2.PC AND PT ARE IN THE DIRECTION OF DRILLING AS SHOWN BELOW INPROFILE.3.APPROXIMATE LOCATION OF EXISTING UTILITIES ARE SHOWN. THECONTRACTOR IS RESPONSIBLE FOR ABOVE AND BURIED UTILITYFIELD LOCATION, PROTECTION AND CLEARANCE, AS NOTED BY THECONTRACT DOCUMENTS.4.PROFILE FOLLOWS THE CENTERLINE OF PTE-1.5.ONLY BORINGS WITHIN 250 FT OF THE FORCE MAINS ARE SHOWN INTHE PLAN VIEW. NOT ALL BORINGS SHOWN IN THE PLAN AREINCLUDED IN THE PROFILE.6.DRILLED PATH NOTES:A. DRILLED PATH STATIONS ARE IN FEET BY HORIZONTALMEASUREMENT AND ARE REFERENCED TO CONTROLESTABLISHED FOR THE DRILLED SEGMENT.B. DRILLED PATH COORDINATES REFER TO CENTERLINE OF PILOT.7.PILOT HOLE TOLERANCES: THE PILOT HOLE SHALL BE DRILLED TOTHE TOLERANCES LISTED BELOW. HOWEVER, IN ALL CASES,RIGHT-OF-WAY AND EASEMENT RESTRICTIONS AND CONCERN FORADJACENT EXISTING FACILITIES SHALL TAKE PRECEDENCE OVERTHESE TOLERANCES.A. ENTRY POINT: UP TO 10 FEET FORWARD OR BACK FROMDESIGNED ENTRY POINT; UP TO 5 FEET RIGHT OR LEFT OF THEDESIGNED ALIGNMENT.B. EXIT POINT: UP TO 10 FEET SHORT OR 10 FEET LONG RELATIVETO THE DESIGNED EXIT POINT; UP TO 5 FEET RIGHT OR LEFT OFTHE DESIGNED ALIGNMENT.C. ELEVATION: UP TO 2 FEET ABOVE AND 15 FEET BELOW THEDESIGNED PROFILE, EXCEPT WHERE PTE FM CROSSES MHTFM,WHERE A MINIMUM OF 10 FEET SHALL BE MAINTAINED BETWEENBORE HOLES.D. ALIGNMENT: UP TO 5 FEET RIGHT OR LEFT OF THE DESIGNEDALIGNMENT.E. CURVE RADIUS: THE MINIMUM ALLOWABLE RADIUS IS 1,000FEET BASED ON A 3-JOINT AVERAGE.8.PROTECTION OF EXISTING FACILITIES: CONTRACTOR SHALLUNDERTAKE THE FOLLOWING STEPS PRIOR TO COMMENCINGDRILLING OPERATION:A. CONTACT THE UTILITY LOCATION/NOTIFICATION SERVICE FORTHE CONSTRUCTION AREA.B. LOCATE AND STAKE ALL EXISTING UNDERGROUND FACILITIES.ANY FACILITIES LOCATED WITHIN 10 FEET OF THE DRILLED PATHSHALL BE EXPOSED.C. MODIFY DRILLING PRACTICES AND DOWNHOLE ASSEMBLIES ASNECESSARY TO PREVENT DAMAGE TO EXISTING FACILITIES.9.ADDITIONAL BORINGS WERE DRILLED FOR STRUCTURES BUT WERESHALLOW AND DOES NOT IMPACT PROFILE SHOWN BELOW.10.REFER TO DRAWING C-01-101 FOR RIG/PIPE SIDE DRILL ENTRY/EXITCOORDINATES.24" RS54" LONG CREEKINTERCEPTORFEMA 100 YR FLOODPLAINFUTURE LAND USE CONDITIONSFEMA 100 YR FLOODPLAINEXISTING LAND USE CONDITIONSCOMMUNITY FLOODWAY30'60'0'60'120'HORIZONTAL SCALE 1'=60'40'20'10'20'0'VERTICAL SCALE 1"=20'EQ BASIN NO.1 14°14°LONGCREEKDRILL EXITSTA 0+00
DRILL ENTRY
STA 11+20.00EXISTING GRADE (TYP)R 1282'R 1282'21" MHTFM-1 (26" OD)21" MHTFM-2 (26" OD)APPROX 20.0'PIPE SIDELIMITS OF DISTURBANCERIG SIDELIMITS OF DISTURBACESTOWEEQUALIZATIONPUMPING STATIONSTORM FLOWEQ BASIN NO.1DAY TANK NO.1LONGCREEK34" PTE-1 (42" OD)21" MHTFM-1 (26" OD)36" BDFEMA FLOODWAY34" PTE-2 (42" OD)21" MHTFM-2 (26" OD)CONDUCTOR CASING ON PTE-2 ONLY,185' MINIMUM - SEE HORIZONTALDIRECTIONAL DRILLING SPECIFICATIONE 1401600N 563600 N 563700 N 563800E 1401700N 563500E 1401800N 563300
E 1401900N
5
6
3
2
0
0
E 1402000N
5
6
3
0
0
0
N
5
6
3
1
0
0
E 1402100N
5
6
2
9
0
0
E 1402200N
5
6
2
8
0
0 PIPE SIDE 3PIPE SIDE 4DRILL EXIT PITS100' WATER QUALITY BUFFERFERC MANAGEMENT BOUNDARYDELINEATED WETLAND BOUNDARY48" DTO4" SW6" SWDRILL ENTRY PITSRIG SIDE 4RIG SIDE 3PROPOSED GRADE @ POND8" DRAIN6/22/2021 EARLY WORK PACKAGE NO. 3 1SENSITIVE PROJECT - DO NOT REPRODUCE2Non-BrownfieldSolid RockBass Pond ParcelDuke/FERCPropertyRed Zone:Solids Spoil = 350 CY *1.25 (swell factor) = 437 CYLiquids Spoil = 364,000 galCombined spoils after dewatering = 560 CYGreen Zone:Solids Spoil = 202 CY *1.25 (swell factor) = 253 CYLiquids Spoil = 210,000 galCombined spoils after dewatering = 320 CYBrownfield Zone:Solids Spoil = 120 CY *1.25 (swell factor) = 150 CYLiquids Spoil = 126,000 galCombined spoils after dewatering = 195 CY
E/LE/L
E/L
E/L
E/L E/LE/LE/LE/LE/LE/LE/LE/LE/L
E/L
E/L
E/L
E/L
E/L
E/L
E/L E/LE/LE/LE/LE/LE/LE/L571.1
570.4
569.7
582.1
576.9
572.1
572.1
568.7569.9 572.8
569.8
574.5
575.2
575.5
578.2
584.7
585.6
585.3
569.7 569.5568.7 568.4568.7568.4 568.8568.8569.9
575.8
574.9 576.6 577.8 569.9 569.7 569.9569.9569.9 569.9569.9569.9
615.6
609.1
596.7
592.6
593.4
599.5
593.6
595.5
594.7
568.7
567.7
568.6568.8 569.1 575.9578.7575.2576.2
578.2
574.5
584.2
578.8
573.6
578.9
580.1
579.6
568.9 566.9569.2 568.6572.5
579.3
577.9
578.3
574.4
567.6
568.6 568.6569.7 568.5 569.9 569.3
582.1
581.7
578.5
580.5
579.8
578.9
579.4
572.6
579.8
579.6
569.4 568.7 567.7 568.4 567.6 576.3
573.2
570.7
571.7
577.8
579.3
579.5
585.4
578.9
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582581580578577570575575579SMP-1UMP-1SSMP-2SMP-2SSMP-1DDS5DDS4 DDS1DDS2DDS2 DDS3SURFACE MONITORING POINTS (SMPs)POINT NOSMP-1SMP-2HDD STATIONOFFSET (FT)NORTHING563099.61563013.33EASTING1402488.631402627.46APPROXGROUND EL578.28579.41PROPERTY OWNERSTRUCTURE SETTLEMENT MONITORING POINTS (SSMPs)POINT NOSSMP-1SSMP-2HDD STATIONOFFSET (FT)NORTHING563041.73562919.36EASTING1402569.861402524.26APPROXGROUND EL570.10570.10PROPERTY OWNERUTILITY MONITORING POINTS (UMPs)POINT NOUMP-1HDD STATIONOFFSET (FT)NORTHING563296.70EASTING1402577.13APPROXGROUND EL571.61PROPERTY OWNER28+59.4730+17.7168.62' R109.61' RCITY OF CHARLOTTECITY OF CHARLOTTE29+54.2629+47.1999.66' R230.07' RCITY OF CHARLOTTECITY OF CHARLOTTE28+82.8620.00' RCITY OF CHARLOTTESTONE OUTLET(TYP)CONSTRUCTIONENTRANCE (TYP)DIVERSION DITCHDD1NOTES:1.REFER TO DRAWING C-09-102 THROUGH C-09-104 FOR PIPE SIDE LIMITS OFDISTURBANCE, GRADING, AND EROSION CONTROL MEASURES.2.ACCESS ROAD TO REMAIN OPEN AND ACCESSIBLE DURING CONSTRUCTIONALLOWING ACCESS TO PLANT ACTIVITIES.3.EXISTING EARTHEN RETENTION BASIN PROVIDES CONTAINMENT SHOULD THEADJACENT 54" LONG CREEK INTERCEPTOR MANHOLE EVER OVERFLOW DURING APEAK FLOW EVENT. THE BASIN DRAIN HAS A DISCHARGE CONTROL GATE WHICHREMAINS CLOSED AND IS NOT OPENED. THEREFORE, THE BASIN WILL FUNCTION AS ASEDIMENT TRAP DURING FORCE MAIN CONSTRUCTION.4.ALL NEW GRADING SHOWN IS TEMPORARY TO FACILITATE CONSTRUCTION. AT THEEND OF THE PROJECT SHEET PILING SHALL BE REMOVED AND FINISHED GRADESHALL BE RESTORED TO PRE-CONSTRUCTION CONDITIONS. SLOPES STEEPER THAN4H:1V SHALL BE STABILIZED WITH EROSION CONTROL MEASURES OR VEGETATION TORENDER SOIL STABLE AGAINST ACCELERATED EROSION.5.CONSTRUCT SEDIMENT PIT 6' LONG X 4' WIDE X 2' DEEP AND SLOPE SURROUNDINGGRADE TO PIT TO THE EXTENT POSSIBLE DURING CONSTRUCTION. LINE PIT WITHMINIMUM 6" LAYER OF NCDOT CLASS B EROSION CONTROL STONE.6.SEE GENERAL NOTES ON DRAWING C-00-001.7.CLEAR EXISTING TREES AS NECESSARY FOR CONSTRUCTION. INSTALL TREEPROTECTION FENCE AROUND ANY REMAINING TREES PER DETAIL TPF ON SHEETC-14-501.8.TREE PROTECTION FENCE AND INLET PROTECTION TO REMAIN IN PLACE FORSUBSEQUENT WORK BY OTHERS.9.COORDINATE LOCATION OF DIVERSION DITCHES AND SILT FENCING WITH PROPOSEDWORK. RELOCATE AS REQUIRED FOR HDD WORK AND ASSOCIATED EQUIPMENT.10.EXISTING FENCE SHALL BE DEMOLISHED AS NEEDED FOR CONSTRUCTION OF THEFORCE MAINS. SITE SECURITY SHALL BE MAINTAINED AT ALL TIMES. FOLLOWINGCOMPLETION OF CONSTRUCTION, FENCING SHALL BE REPLACED AND RESTORED TOPRE-CONSTRUCTION CONDITIONS.11.EQUIPMENT LAYOUT SHOWN FOR ILLUSTRATIVE PURPOSES ONLY. ACTUALEQUIPMENT LAYOUT SHALL BE DETERMINED BY THE CONTRACTOR.12.REFER TO HORIZONTAL DIRECTIONAL DRILLING SECTION FOR MANDREL TESTING.13.LOCATIONS OF UTILITY MONITORING POINTS (UMPs), SURFACE MONITORING POINTS(SMPs), AND STRUCTURE SETTLEMENT MONITORING POINTS (SSMPs) MAY BEADJUSTED IN THE FIELD BY THE ENGINEER.14.CONTRACTOR SHALL INSTALL, PROTECT, MONITOR, MAINTAIN, REPLACE ANDREMOVE UTILITY MONITORING POINTS (UMPS), SURFACE MONITORING POINTS(SMPS), AND STRUCTURE SETTLEMENT MONITORING POINTS (SSMPS) INACCORDANCE WITH THE GEOTECHNICAL INSTRUMENTATION AND MONITORINGSPECIFICATION SECTION.15.CONTRACTOR SHALL DEVELOP AND IMPLEMENT A CONTINGENCY PLAN TO MITIGATETHE EFFECTS OF ANY SETTLEMENT OF THE EXISTING GROUND SURFACE OR OTHERMOVEMENT OF UNDERGROUND UTILITIES BEYOND THE INDICATED THRESHOLDLIMITS IN ACCORDANCE WITH THE GEOTECHNICAL INSTRUMENTATIONSPECIFICATION SECTION.16.CONTRACTOR SHALL ESTABLISH AND MAINTAIN SURVEY BENCHMARKS AS REQUIREDTO PERFORM MONITORING OF GEOTECHNICAL INSTRUMENTATION.17.REFER TO DRAWING C-13-501 FOR TYPICAL SMP, UMP, AND SSMP DETAILS.18.OFFSETS IN TABLES ARE BASED ON DISTANCES OFF OF MHTFM-1.19.REFER TO DRAWING C-01-101 FOR RIG/PIPE SIDE DRILL ENTRY/EXIT COORDINATES.TEMPORARYSHEET PILETEMPORARYFILL AREA (NOTE 4)54" LONG CREEKINTERCEPTORNOTE 2SEDIMENT PIT(NOTE 5, TYP)DELINEATEDWETLANDS BOUNDARYRRC-14-503ROCK RINGINLET PROTECTIONCEC-14-501DDC-14-503DIVERSION DITCH(TYP)SFC-14-501SILT FENCE(TYP)TSPC-14-502TEMPORARYSOIL STOCKPILE21" MHTFM-1 (26" OD)FEMA 100 YR FLOODPLAINFUTURE LAND USE CONDITIONSFEMA 100 YR FLOODPLAINEXISTING LAND USE CONDITIONS34" PTE-1 (42" OD)80'40'20'0'40'HORIZONTAL SCALE 1"=40'FEMA FLOODWAYSTOWEEQUALIZATIONPUMPING STATIONSTOWESTORM FLOWEQ BASINNO.1STOWEDAY TANK NO.1STOWEDAY TANK NO.2FEMA FLOODWAYFERC MANAGEMENT BOUNDARYDELINEATED WETLAND BOUNDARYCC-14-502RIG SIDELIMITS OF DISTURBANCENOTE 7100' WATER QUALITYBUFFER LINEPTE FM RIG SIDELIMITS OF DISTURBANCE(SEE C-02-101)NOTE 10 (TYP)COMMUNITY FLOODWAY100' WATER QUALITY BUFFER LINEFEMA FLOODWAYCOMMUNITY FLOODWAYN 563600E 1402600E 1402700E 1402800E 1402900E 1403000E 1403100N 563500N 563400N 563300N 563200
N 563100
N 563000
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E 1402400E 1402500E 1402600E 1402700CONTRACTOR TRAILER,PARKING, AND STAGING AREA(SEE C-04-102 AND C-04-103)RECYCLE PITDRILLING RIGSURVEY TRAILEREXCAVATORDRILL PIPEPOWER UNITSTORAGESTOWE DAY HEADWORKS &INFLUENT PUMPING STATION(FUTURE WORK PACKAGE)21" MHTFM-2 (26" OD)PLOTTED: 1/12/2022 7:41 AM FILE: C:\pw_working\bvw_americas\d1386024\C-01-000.dwgFD10000
SENSITIVE PROJECT - DO NOT REPRODUCECIVIL
MOUNT HOLLY TRANSFER FORCE MAINSSITE GRADING, EROSION CONTROL ANDGEOTECHNICAL INSTRUMENTATIONC-01-102401825JGCKTHSOJMOJANUARY 14, 20226/18/2021 EARLY WORK PACKAGE NO. 2 1 JGC SO JMO
1/14/2022 EARLY WORK PACKAGE NO.2 POST-BID REVISIONS 2 JGC RDA JMO
D401825-C1
PROJECT NO.SHEETOF011/2IF THIS BAR DOES NOTMEASURE 1" THEN DRAWINGIS NOT TO FULL SCALEDATE:DESIGNED:APPROVED:CHECKED:DETAILED:REVISIONS AND RECORD OF USE NO.BY CHK APPDATE
CHARLOTTE WATER
Black & Veatch International Company
Business License No. F-0794
10925 David Taylor Drive, Suite 280
Charlotte, North Carolina 28262
MOUNT HOLLY PUMPING STATION AND
STOWE HEADWORKS & INFLUENT PUMPING STATIONNOTE 3RIG SIDE 1RIG SIDE 2SKID PUMPMUD RIG ANDSPOIL CONTAINERSFRAC TANKS34" PTE-2 (42" OD)22anyany
1/14/20227 HDD Prep Grading Plan
Charlotte Water – Stowe Regional WRRF | HDD EQ Basin 2 Spoils Area Environmental Management Plan Attachment C – Approved Permits

C
Attachment C –
Approved Permits
- EIS Record of Decision
- Army Corps of Engineer 404
- FERC Easement

PERMIT MODIFICATION --- 11/17/21

U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT

Action Id. SAW-2019-01988 County: Mecklenburg U.S.G.S. Quad: NC-Mount Holly

GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION

Permittee: Charlotte Water
Carl Wilson
Address: 5100 Brookshire Boulevard
Charlotte, NC 28216
Telephone Number: 704-336-1083
E-mail: [e-mail]

Size (acres) 272 Nearest Town Charlotte
Nearest Waterway Long Creek River Basin Santee
USGS HUC 03050101 Coordinates Latitude: 35.2819
Longitude: -81.0025
Location description: The review area is located between the wastewater treatment plants at the terminus of Hawfield Road and
Broome Street.

Description of projects area and activity: This verification authorizes the grading and placement of fill material in 0.23 acre of
wetlands to facilitate the construction of Stowe Regional Water Resource Recovery facility and associated infrastructure. This
verification also authorizes the installation of sewer force main under the Catawba River by means of horizontal directional
drill.

Applicable Law(s): ܈Section 404 (Clean Water Act, 33 USC 1344)
܈Section 10 (Rivers and Harbors Act, 33 USC 403)

Authorization: NWP 12. Utility Lines and NWP 14. Linear Transportation Projects

SEE ATTACHED NWP GENERAL, REGIONAL, AND/OR SPECIAL CONDITIONS

Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the enclosed
Conditions, your application signed and dated 3/24/2020, and the enclosed plans Figures 3-10 and Plansheet 1-5 dated 3/23/2020.
Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop work order,
a restoration order, a Class I administrative penalty, and/or appropriate legal action.

This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended
or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or modified, this
verification will remain valid until the expiration date identified below, provided it complies with all requirements of the modified
nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the activity would
no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are under construction)
or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed
within twelve months of the date of the nationwide permit’s expiration, modification or revocation, unless discretionary authority has
been exercised on a case-by-case basis to modify, suspend or revoke the authorization.

Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You
should contact the NC Division of Water Resources (telephone [phone]) to determine Section 401 requirements.

For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior

This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal, State
or local approvals/permits.

If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory program,
please contact David L. Shaeffer at 704-510-1437 or [e-mail].
PERMIT MODIFICATION --- 11/17/21

Corps Regulatory Official: _____________________________________________________Date: 11/17/2021
Expiration Date of Verification: 03/18/2022
Bryan Roden-Reynolds
2021.11.17 13:49:46 -05'00'
PERMIT MODIFICATION --- 11/17/21

The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at
http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0

Copy furnished:

Agent: HDR, Incorporated
Kelly Thames
Address: 440 South Church Street, Suite 900
Charlotte, NC 28202
Telephone Number: 704-338-6710
E-mail: [e-mail]

SAW-2019-01988
SPECIAL CONDITIONS

a. In order to compensate for impacts associated with this permit, mitigation shall be provided in accordance
with the provisions outlined on the most recent version of the attached Compensatory Mitigation Responsibility
Transfer Form. The requirements of this form, including any special conditions listed on this form, are hereby
incorporated as special conditions of this permit authorization.

Action ID Number: SAW-2019-01988 County: Mecklenburg

Permittee: Charlotte Water, Carl Wilson

Project Name: Stowe Regional Water Resource Recovery Facility & Associated Infrastructure Projects

Date Verification Issued: 11/17/2021

Project Manager: David L. Shaeffer

Upon completion of the activity authorized by this permit and any mitigation required by the permit,
sign this certification and return it to the following address:

US ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Attn: David L. Shaeffer
Charlotte Regulatory Office
U.S Army Corps of Engineers
8430 University Executive Park Drive, Suite 615
Charlotte, North Carolina 28262
or
[e-mail]

Please note that your permitted activity is subject to a compliance inspection by a U. S. Army Corps of
Engineers representative. Failure to comply with any terms or conditions of this authorization may
result in the Corps suspending, modifying or revoking the authorization and/or issuing a Class I
administrative penalty, or initiating other appropriate legal action.

I hereby certify that the work authorized by the above referenced permit has been completed in
accordance with the terms and condition of the said permit, and required mitigation was completed in
accordance with the permit conditions.

_______________________________________ ______________________
Signature of Permittee Date

SAW-2019-01988

MEMORANDUM FOR RECORD

SUBJECT: Department of the Army Memorandum Documenting General Permit Verification

1.0 Introduction and overview: Information about the proposal subject to one or more of the
Corps regulatory authorities is provided in Section 1, detailed evaluation of the activity is found
in Sections 2 through 4 and findings are documented in Section 5 of this memorandum.
Further, summary information about the activity including administrative history of actions
taken during project evaluation is attached (ORM2 summary).

1.1 Applicant name: Charlotte Water, Carl Wilson

1.2 Activity location:Latitude: 35.2819 Longitude: -81.0025 Location description: The review area
is located between the wastewater treatment plants at the terminus of Hawfield Road
and Broome Street.

1.3 Description of activity requiring verification:This verification would authorize the grading
and placement of fill material in 0.23 acre of wetlands to facilitate the construction of
Stowe Regional Water Resource Recovery facility and associated infrastructure. This
verification also authorizes the installation of sewer force main under the Catawba River
by means of horizontal directional drill.

1.4 Is this an After-the-Fact verification? No.

1.5 Date PCN determined complete for processing: 3/25/2020

1.6 Jurisdiction Determination completed? An Approved JD was completed on 5/28/2020.

1.7 Permit authority: Section 10 of the Rivers and Harbors Act of 1899 (33 USC 403) and
Section 404 of the Clean Water Act (33 USC 1344)

1.8 Applicable Permit: NWP 12. Utility Lines and NWP 14. Linear Transportation Projects

1.9 Activity requires written waiver of NWP limits? No.

1.10 Activity requires a waiver from the requirements of a regional condition(s)? No.

2.0 Evaluation of the Pre-Construction Notification

2.1 Direct and indirect effects caused by the GP activity: The direct effects of the proposed
activity in waters would include the loss of jurisdictional waters (as specified in Section
1.3) and their associated aquatic resource functions. The proposed activity also has the
potential to result in indirect effects to waters including excess sedimentation in
downstream waters, disruption and/or killing of aquatic life in the direct vicinity of the
project area, increase of downstream flows, and blocking/restricting aquatic life
passage transiting in and through the project area. These indirect effects are expected
to be minimal due to design criteria and Best Management Practices (BMPs) required by
Nationwide Permit General and Regional Conditions. Additionally, indirect effects would
be further reduced through the implementation of BMPs required by state, local, and
Federal ordinances and regulations.
SAW-2019-01988

2.2 Site specific factors: This area has a long history of intensive land use which has resulted
in long term degradation to aquatic resources. Given the largely urban nature of the
watershed, the waters within the project area provide important aquatic resource
functions to downstream waters. The loss of these functions in this setting and in the
proposed quantities necessitates compensatory mitigation to ensure that cumulative
impacts to onsite and downstream aquatic resources are individually and cumulatively
minimal.

2.3 Coordination

2.3.1 Was the PCN coordinated with other agencies? Yes. This PCN was coordinated with the
USFWS for Section 7 ESA consultation.

If yes, describe results including resolution of any concerns. Agency coordination with the
USFWS is required for the Northern Long Eared Bat. However, the Corps is not required
to wait for a response from the USFWS Asheville Office in accordance with local
procedures.

2.3.2 Was the PCN coordinated with other Corps offices? No.

2.4 Mitigation

2.4.1 Provide brief description of how the activity has been designed on-site to avoid and minimize
adverse effects, both temporary and permanent, to waters of the United States to the
maximum extent practicable at the project site:The applicant provided a detailed statement
describing their efforts to avoid and minimized impacts to waters of the United States
on the project site in the preconstruction notification. Based on this information, the
Corps believes the applicant has avoid and minimized impacts to waters of the United
State to the maximum extent practicable.

2.4.2 Is compensatory mitigation required for unavoidable impacts to jurisdictional aquatic resources
to reduce the individual and cumulative adverse environmental effects to a minimal level?
Yes.

Provide rationale: Compensatory mitigation is required to ensure minimal adverse
environmental effects. The loss of wetlands associated with the activity is greater than
0.10 acre.

2.4.3 Type and location of compensatory mitigation

Is the impact in the service area of an approved mitigation bank? No.

If yes, does the mitigation bank have appropriate number and resource type of credits
available? No.

Is the impact in the service area of an approved in-lieu fee program? Yes.

If yes, does the in-lieu fee program have the appropriate number and resource type of credits
available? Yes.

SAW-2019-01988
Selected compensatory mitigation type/location(s): See Table 1

Table 1: Mitigation Type and Location
Mitigation bank credits
In-lieu fee program credits X
Permittee-responsible mitigation under a watershed approach
Permittee-responsible mitigation, on-site and in-kind
Permittee-responsible mitigation, off-site and/or out of kind

Does the selected compensatory mitigation option deviate from the order of the options
presented in §332.3(b)(2)-(6)? No.

2.4.4 Amount of compensatory mitigation: 0.4 wetland credits

Rationale for required compensatory mitigation amount: This amount of compensatory
mitigation is necessary to replace the permanent loss of WOUS and temporal loss at the
mitigation site. No NCWAM rating was provided so a 2:1 ratio would be used.

3.0 Compliance with Other Laws, Policies and Requirements

3.1 Section 7(a)(2) of the Endangered Species Act (ESA)

3.1.1 ESA action area: The action area includes the waters of the United States that will be
directly affected by the proposed work or structures and uplands directly affected as a
result of authorizing the work or structures.

3.1.2 Has another federal agency taken steps to document compliance with Section 7 of the ESA
and completed consultation(s) as required? No.

3.1.3 Known species/critical habitat present? Yes.
IPAC Species in Mecklenburg County:
Name: Atlantic pigtoe (Fusconaia masoni) Status: Proposed Threatened
Name: Carolina heelsplitter (Lasmigona decorata) Status: Endangered
Name: Harperella (Ptilimnium nodosum) Status: Endangered
Name: Michaux's sumac (Rhus michauxii) Status: Endangered
Name: Northern Long-Eared Bat (Myotis septentrionalis) Status: Threatened
Name: Schweinitz's sunflower (Helianthus schweinitzii) Status: Endangered
Name: Smooth coneflower (Echinacea laevigata) Status: Endangered

Effect determination(s), including no effect, for all known species/habitat, and basis for
determination(s): Based on the latest version of the Natural Heritage Program’s NHEO
data and a site visit, there are no protected species located within or in the vicinity of
the action area. Based on the NHEO data, a Corps field review, and a assessment
conducted by the agent, the Corps has determined the proposed activity will not
directly or indirectly affect any species subject to the ESA.

3.1.4 Consultation with either the National Marine Fisheries Service and/or the U.S. Fish and Wildlife
Service was initiated and completed as required, for any determinations other than “no effect”
(see the attached “Summary” sheet for begin date, end date and closure method of the
consultation).
SAW-2019-01988
The USACE reviewed this project in accordance with (IAW) the NLEB Standard Local
Operating Procedures for Endangered Species (SLOPES) between the USACE,
Wilmington District, and the Asheville and Raleigh U.S. Fish and Wildlife Service
(Service) Offices, and determined that the action area for this project is located outside
of the highlighted areas/red 12-digit HUCs and activities in the action area do not
require prohibited incidental take; as such, this project meets the criteria for the 4(d)
rule and any associated take is exempted/excepted. IAW the NLEB SLOPES, the USACE
sent a Situation 1 email to the Service on 5/27/2020, informing them about this project.

Service Concurrence: as established in the NLEB SLOPES, this project does not require
prohibited intentional take of the NLEB and it meets the criteria for the 4(d) rule;
therefore any associated take is exempt and it is not necessary for the USACE to wait
30 days for the Service to object or concur.

Based on a review of the information above, the Corps has determined that it has fulfilled its
responsibilities under Section 7(a)(2) of the ESA.

3.2 Magnuson-Stevens Fishery Conservation and Management Act, Essential Fish Habitat
(EFH) The NWPs/RGPs were coordinated with the NMFS during the permit renewal
process. NMFS coordination/EFH consultation is required if the activity affects SAV.
This activity does not affect SAV. Therefore, NMFS coordination/EFH consultation has
been completed.

3.2.1 Has another federal agency taken steps to comply with EFH provisions of Magnuson-Stevens
Act? No.

3.2.2 Did the proposed project require review under the Magnuson-Stevens Act? No.

3.3 Section 106 of the National Historic Preservation Act (Section 106)

3.3.1 Section 106 permit area:The permit area includes only those areas comprising waters of the
United States that will be directly affected by the proposed work or structures. Activities
outside of waters of the U.S. are not included because all three tests identified in 33
CFR 325, Appendix C(g)(1) have not been met.

Final description of the permit area: The permit area is limited to impacted waters.

3.3.2 Has another federal agency taken steps to comply with Section 106 of the National Historic
Preservation Act and completed consultation(s) as required? No.

3.3.3 Known cultural resource sites present and/or survey or other additional information needed?
No. Based on the NCDCR “HPOWEB” service, aerial photographs, and a site visit, there
are no known historic properties located in the permit area or in close proximity to the
permit area.

Effect determination and basis for that determination: The Corps has determined the
proposed activity has no potential to cause effects to properties listed or eligible for
listing in the National Register of Historic Places, because the project is located in areas
that have been extensively modified. This activity is so limited in nature and scope that
there is little likelihood of impinging upon a historic property even if such properties
SAW-2019-01988
were present within the affected area(s). The site has been mass graded in most areas
due to various past industrial land use.

3.3.4 Consultation was initiated and completed as required with the appropriate agencies, tribes
and/or other parties for any determinations other than “no potential to cause effects” (see the
attached “Summary” sheet for consultation type, begin date, end date and closure method of
the consultation). The Corps has determined that it has fulfilled its responsibilities under
Section 106 of the NHPA.

3.4 Tribal Trust Responsibilities

3.4.1 Was government-to-government consultation conducted with Federally-recognized Tribe(s)?
No. There are no known tribal interests in the project area.

Provide a description of any consultation(s) conducted including results and how concerns
about significant effects to protected tribal resources, tribal rights and/or Indian lands were
addressed. The Corps has determined that it has fulfilled its tribal trust responsibilities.

3.4.2 Other Tribal including any discussion of Tribal Treaty rights? Select Yes or No.

3.5 Section 401 of the Clean Water Act – Water Quality Certification (WQC)

3.5.1 Is a Section 401 WQC required, and if so, has the certification been issued or waived? A
general WQC has been issued for this permit.

3.6 Coastal Zone Management Act (CZMA)

3.6.1 Is a CZMA consistency concurrence required, and if so, has the concurrence been issued,
waived or presumed? N/A, a CZMA consistency concurrence is not required.

3.7 Wild and Scenic Rivers Act

3.7.1 Is the projectlocated in a component of the National Wild and Scenic River System, or in a
river officially designated by Congress as a “study river” for possible inclusion in the system?
No. According to http://www.rivers.gov, the proposed project area is not within a
designated or study river.

3.8 Effects on Corps Civil Works Projects (33 USC 408)

3.8.1 Does the applicant also require permission under Section 14 of the Rivers and Harbors Act (33
USC 408) because the activity, in whole or in part, would alter, occupy, or use a Corps Civil
Works project? No, there are no Corps Civil Works project(s) in or near the vicinity of the
proposal.

4.0 Special Conditions

4.1 Are special conditions required to ensure minimal effects, protect the public interest and/or
ensure compliance of the activity with any of the laws above? Yes.

4.2 Required special condition(s)

SAW-2019-01988
Special condition:

a. In order to compensate for impacts associated with this permit, mitigation shall be provided
in accordance with the provisions outlined on the most recent version of the attached
Compensatory Mitigation Responsibility Transfer Form. The requirements of this form,
including any special conditions listed on this form, are hereby incorporated as special
conditions of this permit authorization.

Rationale:See Section 2.4.2.

5.0 Determination

5.1 Waiver request conclusion, if required or select N/A: N/A.

5.2 The activity, with the required mitigation, will result in no more than minimal individual and
cumulative adverse effects on the aquatic environment and will not be contrary to the public
interest, provided the permittee complies with the special conditions identified above.

5.3 This activity, as described, complies with all terms and conditions of the permits identified in
Section 1.5.

PREPARED BY:

________________________ Date: 11/17/2021
David L. Shaeffer

Bryan Roden-Reynolds
2021.11.17 13:49:24
-05'00'

CompensatoryMitigationResponsibilityTransferForm

Permittee:CharlotteWater,CarlWilson ActionID:SAWͲ2019Ͳ01988
ProjectName:StoweRegionalWaterResourceRecoveryFacility&AssociatedInfrastructureProjects
County:Mecklenburg

InstructionstoPermittee:ThePermitteemustprovideacopyofthisformtotheMitigationSponsor,eitheranapproved
MitigationBankortheNorthCarolinaDivisionofMitigationServices(NCDMS),whowillthensigntheformtoverifythe
transferofthemitigationresponsibility.OncetheSponsorhassignedthisform,itisthePermittee’sresponsibilitytoensure
thattotheU.S.ArmyCorpsofEngineers(USACE)ProjectManageridentifiedonpagetwoisinreceiptofasignedcopyofthis
formbeforeconductingauthorizedimpacts,unlessotherwisespecifiedbelow.IfmorethanonemitigationSponsorwillbe
usedtoprovidethemitigationassociatedwiththepermit,oriftheimpactsand/orthemitigationwilloccurinmorethanone
8ͲdigitHydrologicUnitCode(HUC),multipleformswillbeattachedtothepermit,andtheseparateformsforeachSponsor
and/orHUCmustbeprovidedtotheappropriatemitigationSponsors.

InstructionstoSponsor:TheSponsormustverifythatthemitigationrequirements(credits)shownbelowareavailableatthe
identifiedsite.Bysigningbelow,theSponsorisacceptingfullresponsibilityfortheidentifiedmitigation,regardlessof
whetherornottheyhavereceivedpaymentfromthePermittee.Oncetheformissigned,theSponsormustupdatethebank
ledgerandprovideacopyofthesignedformandtheupdatedbankledgertothePermittee,theUSACEProjectManager,and
theWilmingtonDistrictMitigationOffice(seecontactinformationonpage2).TheSponsormustalsocomplywithall
reportingrequirementsestablishedintheirauthorizinginstrument.

PermittedImpactsandCompensatoryMitigationRequirements:
PermittedImpactsRequiringMitigation*8ͲdigitHUCandBasin:03050101,CatawbaRiverBasin
StreamImpacts(linearfeet)WetlandImpacts(acres)
WarmCoolColdRiparianRiverineRiparianNonͲRiverineNonͲRiparianCoastal
0.2
*Ifmorethanonemitigationsponsorwillbeusedforthepermit,onlyincludeimpactstobemitigatedbythissponsor.

CompensatoryMitigationRequirements:8ͲdigitHUCandBasin:03050101,CatawbaRiverBasin
StreamMitigation(credits)WetlandMitigation(credits)
WarmCoolColdRiparianRiverineRiparianNonͲRiverineNonͲRiparianCoastal
0.4

MitigationSiteDebited:CityofCharlotteUmbrellaStreamandWetlandMitigationBank
(Listthenameofthebanktobedebited.Forumbrellabanks,alsolistthespecificsite.ForNCDMS,listNCDMS.IftheNCDMS
acceptanceletteridentifiesaspecificsite,alsolistthespecificsitetobedebited).

SectiontobecompletedbytheMitigationSponsor

StatementofMitigationLiabilityAcceptance:I,theundersigned,verifythatIamauthorizedtoapprovemitigation
transactionsfortheMitigationSponsorshownbelow,andIcertifythattheSponsoragreestoacceptfullresponsibilityfor
providingthemitigationidentifiedinthisdocument(seethetableabove),associatedwiththeUSACEPermitteeandAction
IDnumbershown.Ialsoverifythatreleasedcredits(and/oradvancecreditsforNCDMS),asapprovedbytheUSACE,are
currentlyavailableatthemitigationsiteidentifiedabove.Further,IunderstandthatiftheSponsorfailstoprovidethe
requiredcompensatorymitigation,theUSACEWilmingtonDistrictEngineermaypursuemeasuresagainsttheSponsorto
ensurecomplianceassociatedwiththemitigationrequirements.

MitigationSponsorName:

NameofSponsor’sAuthorizedRepresentative:


SignatureofSponsor’sAuthorizedRepresentativeDateofSignature


ConditionsforTransferofCompensatoryMitigationCredit:
x OncethisdocumenthasbeensignedbytheMitigationSponsorandtheUSACEisinreceiptofthesignedform,the
Permitteeisnolongerresponsibleforprovidingthemitigationidentifiedinthisform,thoughthePermitteeremains
responsibleforanyothermitigationrequirementsstatedinthepermitconditions.
x Constructionwithinjurisdictionalareasauthorizedbythepermitidentifiedonpageoneofthisformcanbeginonlyafter
theUSACEisinreceiptofacopyofthisdocumentsignedbytheSponsor,confirmingthattheSponsorhasaccepted
responsibilityforprovidingthemitigationrequirementslistedherein.ForauthorizedimpactsconductedbytheNorth
CarolinaDepartmentofTransportation(NCDOT),constructionwithinjurisdictionalareasmayproceeduponpermit
issuance;however,acopyofthisformsignedbytheSponsormustbeprovidedtotheUSACEwithin30daysofpermit
issuance.NCDOTremainsfullyresponsibleforthemitigationuntiltheUSACEhasreceivedthisform,confirmingthatthe
Sponsorhasacceptedresponsibilityforprovidingthemitigationrequirementslistedherein.
x SignedcopiesofthisdocumentmustberetainedbythePermittee,MitigationSponsor,andintheUSACEadministrative
recordsforboththepermitandtheBank/ILFInstrument.ItisthePermittee’sresponsibilitytoensurethattheUSACE
ProjectManager(addressbelow)isprovidedwithasignedcopyofthisform.
x Ifchangesareproposedtothetype,amount,orlocationofmitigationafterthisformhasbeensignedandreturnedto
theUSACE,theSponsormustobtaincaseͲbyͲcaseapprovalfromtheUSACEProjectManagerand/orNorthCarolina
InteragencyReviewTeam(NCIRT).Ifapproved,highermitigationratiosmaybeapplied,aspercurrentDistrictguidance
andanewversionofthisformmustbecompletedandincludedintheUSACEadministrativerecordsforboththepermit
andtheBank/ILFInstrument.

Comments/AdditionalConditions:AletterfromCityofCharlotteUmbrellaStreamandWetlandMitigationBank,
confirmingtheyarewillingandabletoaccepttheapplicant’scompensatorymitigationresponsibility,dated2/18/2020was
includedwiththepreconstructionnotification.

ThisformisnotvalidunlesssignedbelowbytheUSACEProjectManagerandbytheMitigationSponsoronPage1.Once
signed,theSponsorshouldprovidecopiesofthisformalongwithanupdatedbankledgerto:1)thePermittee,2)theUSACE
ProjectManagerattheaddressbelow,and3)theWilmingtonDistrictMitigationOffice,Attn:ToddTugwell,11405Falls
ofNeuseRoad,WakeForest,NC27587(email:[e-mail]).Questionsregardingthisformoranyofthe
permitconditionsmaybedirectedtotheUSACEProjectManagerbelow.

USACEProjectManager:DavidL.Shaeffer
USACEFieldOffice:CharlotteRegulatoryOffice
USArmyCorpsofEngineers
8430UniversityExecutiveParkDrive,Suite615
Charlotte,NorthCarolina28262
Email:[e-mail]



11/17/2021
USACEProjectManagerSignatureDateofSignature

CurrentWilmingtonDistrictmitigationguidance,includinginformationonmitigationratios,functionalassessments,and
mitigationbanklocationandavailability,andcreditclassifications(includingstreamtemperatureandwetlandgroupings)is
availableathttp://ribits.usace.army.mil
Bryan Roden-Reynolds
2021.11.17 13:49:06 -05'00'
SAW-2019-01988

JD MODIFIED --- 12/07/21
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT

Action Id. SAW-2019-01988 County: Gaston U.S.G.S. Quad: NC-Mount Holly

NOTIFICATION OF JURISDICTIONAL DETERMINATION

Requestor: Charlotte Water
Joseph Wilson
Address: 5100 Brookshire Boulevard
Charlotte, NC 28216
Telephone Number: 704-336-6710
E-mail: [e-mail]

Size (acres) 95 Nearest Town Mount Holly
Nearest Waterway Catawba River River Basin Santee
USGS HUC 03050101 Coordinates Latitude: 35.283537
Longitude: -81.011336
Location description: The review area is located between the wastewater treatment plants at the terminus of Hawfield Road and
Broome Street.

Indicate Which of the Following Apply:
A.PreliminaryDetermination
܈ There appear to be waters, including wetlands on the above described project area/property, that may be subject to Section 404
of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403). The
waters, including wetlands have been delineated, and the delineation has been verified by the Corps to be sufficiently accurate
and reliable. The approximate boundaries of these waters are shown on the enclosed delineation map dated 11/9/2021. Therefore
this preliminary jurisdiction determination may be used in the permit evaluation process, including determining compensatory
mitigation. For purposes of computation of impacts, compensatory mitigation requirements, and other resource protection
measures, a permit decision made on the basis of a preliminary JD will treat all waters and wetlands that would be affected in any
way by the permitted activity on the site as if they are jurisdictional waters of the U.S. This preliminary determination is not an
appealable action under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331). However, you may
request an approved JD, which is an appealable action, by contacting the Corps district for further instruction.
܆ There appear to be waters, including wetlands on the above described project area/property, that may be subject to Section 404
of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403).
However, since the waters, including wetlands have not been properly delineated, this preliminary jurisdiction determination
may not be used in the permit evaluation process. Without a verified wetland delineation, this preliminary determination is
merely an effective presumption of CWA/RHA jurisdiction over all of the waters, including wetlands at the project area, which
is not sufficiently accurate and reliable to support an enforceable permit decision. We recommend that you have the waters,
including wetlands on your project area/property delineated. As the Corps may not be able to accomplish this wetland
delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that can be verified by the Corps.
B. Approved Determination

܆ There are Navigable Waters of the United States within the above described project area/property subject to the permit
requirements of Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403) and Section 404 of the Clean Water Act
(CWA)(33 USC § 1344). Unless there is a change in law or our published regulations, this determination may be relied upon for
a period not to exceed five years from the date of this notification.
܆ There are waters, including wetlandson the above described project area/property subject to the permit requirements of Section
404 of the Clean Water Act (CWA) (33 USC § 1344). Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
܆We recommend you have the waters, including wetlands on your project area/property delineated. As the Corps may not be
able to accomplish this wetland delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that
can be verified by the Corps.
SAW-2019-01988

JD MODIFIED --- 12/07/21
܆The waters, including wetlands on your project area/property have been delineated and the delineation has been verified by
the Corps. The approximate boundaries of these waters are shown on the enclosed delineation map dated DATE. We strongly
suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. Once
verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided
there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years.
܆The waters, including wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the
Corps Regulatory Official identified below onDATE. Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
܆ There are no waters of the U.S., to include wetlands, present on the above described project area/property which are subject to the
permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published
regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification.
܆ The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA).
You should contact the Division of Coastal Management in Morehead City, NC, at [phone] to determine their
requirements.

Placement of dredged or fill material within waters of the US, including wetlands, without a Department of the Army permit may
constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). Placement of dredged or fill material, construction or
placement of structures, or work within navigable waters of the United States without a Department of the Army permit may
constitute a violation of Sections 9 and/or 10 of the Rivers and Harbors Act (33 USC § 401 and/or 403). If you have any questions
regarding this determination and/or the Corps regulatory program, please contact Bryan Roden-Reynolds at 704-510-1440 or
[e-mail].

C. Basis For Determination: Basis For Determination: See the preliminary jurisdictional determination
form dated 12/7/2021.
D. Remarks: None

E. Attention USDA Program Participants

This delineation/determination has been conducted to identify the limits of Corps’ Clean Water Act jurisdiction for the particular site
identified in this request. The delineation/determination may not be valid for the wetland conservation provisions of the Food Security
Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request
a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work.

F. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B.
above)

If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed
you will find a Notification of Appeal Process (NAP) fact sheet and Request for Appeal (RFA) form. If you request to appeal this
determination you must submit a completed RFA form to the following address:

US Army Corps of Engineers
South Atlantic Division
Attn: Mr. Philip A. Shannin
Administrative Appeal Review Officer
60 Forsyth Street SW, Floor M9
Atlanta, Georgia 30303-8803
AND
[e-mail]

In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal
under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at the above address by Not applicable.
**It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence.**

SAW-2019-01988

JD MODIFIED --- 12/07/21
Corps Regulatory Official: ______________________________________________________

Date of JD: 12/7/2021 Expiration Date of JD: Not applicable

The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete our Customer Satisfaction Survey, located online at
https://regulatory.ops.usace.army.mil/customer-service-survey/.

Copy Furnished:

Agent: HDR, Inc.
Kelly Thames
Address: 440 S. Church Street
Charlotte, NC 28208
Telephone Number: 704-338-6710
E-mail: [e-mail]

Bryan Roden-Reynolds
2021.12.07 08:18:59 -05'00'

NOTIFICATION OF ADMINISTRATIVE APPEAL OPTIONS AND PROCESS AND
REQUEST FOR APPEAL
Applicant: Charlotte Water, Joseph Wilson File Number: SAW-2019-01988 Date: 12/7/2021
Attached is: See Section below
܆ INITIAL PROFFERED PERMIT (Standard Permit or Letter of permission) A
܆ PROFFERED PERMIT (Standard Permit or Letter of permission) B
܆ PERMIT DENIAL C
܆ APPROVED JURISDICTIONAL DETERMINATION D
܈ PRELIMINARY JURISDICTIONAL DETERMINATION E
SECTION I - The following identifies your rights and options regarding an administrative appeal of the above decision.
Additional information may be found at or http://www.usace.army.mil/Missions/CivilWorks/RegulatoryProgramandPermits.aspx
or the Corps regulations at 33 CFR Part 331.
A: INITIAL PROFFERED PERMIT: You may accept or object to the permit.
x ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your
signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all
rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the
permit. x OBJECT: If you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request
that the permit be modified accordingly. You must complete Section II of this form and return the form to the district
engineer. Your objections must be received by the district engineer within 60 days of the date of this notice, or you will
forfeit your right to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your
objections and may: (a) modify the permit to address all of your concerns, (b) modify the permit to address some of your
objections, or (c) not modify the permit having determined that the permit should be issued as previously written. After
evaluating your objections, the district engineer will send you a proffered permit for your reconsideration, as indicated in
Section B below.
B: PROFFERED PERMIT: You may accept or appeal the permit x ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your
signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all
rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the
permit. x APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein,
you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section II of
this form and sending the form to the division engineer. This form must be received by the division engineer within 60 days
of the date of this notice.
C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by
completing Section II of this form and sending the form to the division engineer. This form must be received by the division
engineer within 60 days of the date of this notice.
D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or provide new
information. x ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the
date of this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved JD.
x APPEAL: If you disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers
Administrative Appeal Process by completing Section II of this form and sending the form to the district engineer. This form
must be received by the division engineer within 60 days of the date of this notice.

E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps regarding the
preliminary JD. The Preliminary JD is not appealable. If you wish, you may request an approved JD (which may be appealed),
by contacting the Corps district for further instruction. Also you may provide new information for further consideration by the
Corps to reevaluate the JD.

SECTION II - REQUEST FOR APPEAL or OBJECTIONS TO AN INITIAL PROFFERED PERMIT
REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an initial
proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons or
objections are addressed in the administrative record.)

ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the
record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to
clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record.
However, you may provide additional information to clarify the location of information that is already in the administrative
record.
POINT OF CONTACT FOR QUESTIONS OR INFORMATION:
If you have questions regarding this decision and/or the
appeal process you may contact:
District Engineer, Wilmington Regulatory Division
Attn: Bryan Roden-Reynolds
Charlotte Regulatory Office
U.S Army Corps of Engineers
8430 University Executive Park Drive, Suite 615
Charlotte, North Carolina 28262

If you only have questions regarding the appeal process you may
also contact:
MR. PHILIP A. SHANNIN
ADMINISTRATIVE APPEAL REVIEW OFFICER
CESAD-PDS-O
60 FORSYTH STREET SOUTHWEST, FLOOR M9
ATLANTA, GEORGIA 30303-8803

PHONE: [phone]; FAX [phone]
EMAIL: [e-mail]

RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government
consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15-day
notice of any site investigation, and will have the opportunity to participate in all site investigations.

________________________________________
Signature of appellant or agent.
Date: Telephone number:

For appeals on Initial Proffered Permits send this form to:

District Engineer, Wilmington Regulatory Division, Attn: Bryan Roden-Reynolds, 69 Darlington Avenue, Wilmington, North
Carolina 28403

For Permit denials, Proffered Permits and Approved Jurisdictional Determinations send this form to:

Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Philip Shannin, Administrative
Appeal Officer, CESAD-PDO, 60 Forsyth Street, Room 10M15, Atlanta, Georgia 30303-8801
Phone: [phone]

PRELIMINARY JURISDICTIONAL DETERMINATION (PJD) FORM
BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR PJD: 11/17/2021
B. NAME AND ADDRESS OF PERSON REQUESTING PJD: Charlotte Water, Joseph Wilson, 5100
Brookshire Boulevard, Charlotte, NC 28216
C. DISTRICT OFFICE, FILE NAME, AND NUMBER: Wilmington District, Stowe Regional Water
Resource Recovery Facility, SAW-2019-01988
D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION: The review area is located between
the wastewater treatment plants at the terminus of Hawfield Road and Broome Street.
(USE THE TABLE BELOW TO DOCUMENT MULTIPLE AQUATIC RESOURCES
AND/OR AQUATIC RESOURCES AT DIFFERENT SITES)
State: NC County: Gaston City: Mount Holly
Center coordinates of site (lat/long in degree decimal format): Latitude: 35.283537 Longitude: -81.011336
Universal Transverse Mercator:
Name of nearest waterbody: Catawba River
E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):

܈Office (Desk) Determination. Date: 11/17/21
܆Field Determination. Date(s):
TABLE OF AQUATIC RESOURCES IN REVIEW AREA WHICH "MAY BE" SUBJECT TO
REGULATORY JURISDICTION

Feature Latitude
(decimal
degrees)
Longitude
(decimal
degrees)
Estimated
amount of
aquatic
resources in
review area
(acreage and
linear feet, if
applicable
Type of aquatic
resources (i.e.,
wetland vs. non-
wetland waters)
Geographic authority to
which the aquatic
resource “may be”
subject (i.e., Section 404
or Section 10/404)
Stream S8 35.28353700 -81.01133600 620 linear feet Non-wetland 404
Stream S9 35.28312800 -81.00953200 236 linear feet Non-wetland 404
Stream S10 35.28374800 -80.99669900 752 linear feet Non-wetland 404
Wetland W17 35.28319400 -81.00978400 0.15 acre Wetland 404
Wetland W10 35.281500 -81.002091 1.28 acres Wetland 404
Catawba River 35.283195 -81.009536 0.65 acre Non-wetland 404

1. The Corps of Engineers believes that there may be jurisdictional aquatic resources in the
review area, and the requestor of this PJD is hereby advised of his or her option to request
and obtain an approved JD (AJD) for that review area based on an informed decision after
having discussed the various types of JDs and their characteristics and circumstances when
they may be appropriate.
2. In any circumstance where a permit applicant obtains an individual permit, or a Nationwide
General Permit (NWP) or other general permit verification requiring "pre- construction
notification" (PCN), or requests verification for a non-reporting NWP or other general
permit, and the permit applicant has not requested an AJD for the activity, the permit
applicant is hereby made aware that: (1) the permit applicant has elected to seek a permit

authorization based on a PJD, which does not make an official determination of
jurisdictional aquatic resources; (2) the applicant has the option to request an AJD before
accepting the terms and conditions of the permit authorization, and that basing a permit
authorization on an AJD could possibly result in less compensatory mitigation being
required or different special conditions; (3) the applicant has the right to request an
individual permit rather than accepting the terms and conditions of the NWP or other
general permit authorization; (4) the applicant can accept a permit authorization and
thereby agree to comply with all the terms and conditions of that permit, including
whatever mitigation requirements the Corps has determined to be necessary; (5)
undertaking any activity in reliance upon the subject permit authorization without
requesting an AJD constitutes the applicant's acceptance of the use of the PJD; (6)
accepting a permit authorization (e.g., signing a proffered individual permit) or undertaking
any activity in reliance on any form of Corps permit authorization based on a PJD
constitutes agreement that all aquatic resources in the review area affected in any way by
that activity will be treated as jurisdictional, and waives any challenge to such jurisdiction
in any administrative or judicial compliance or enforcement action, or in any administrative
appeal or in any Federal court; and (7) whether the applicant elects to use either an AJD or
a PJD, the JD will be processed as soon as practicable. Further, an AJD, a proffered
individual permit (and all terms and conditions contained therein), or individual permit
denial can be administratively appealed pursuant to 33 C.F.R. Part 331. If, during an
administrative appeal, it becomes appropriate to make an official determination whether
geographic jurisdiction exists over aquatic resources in the review area, or to provide an
official delineation of jurisdictional aquatic resources in the review area, the Corps will
provide an AJD to accomplish that result, as soon as is practicable. This PJD finds that
there "may be" waters of the U.S. and/or that there "may be" navigable waters of the U.S.
on the subject review area, and identifies all aquatic features in the review area that could
be affected by the proposed activity, based on the following information:

SUPPORTING DATA. Data reviewed for PJD (check all that apply) Checked items are included in the administrative
record and are appropriately cited:܈Maps, plans, plots or plat submitted by or on behalf of the PJD requestor:
Map: Figures 1-
܈Data sheets prepared/submitted by or on behalf of the PJD requestor. Datasheets:
܈Office concurs with data sheets/delineation report.
܆Office does not concur with data sheets/delineation report. Rationale:
܆Data sheets prepared by the Corps:
܆ Corps navigable waters' study:
܆U.S. Geological Survey Hydrologic Atlas:
܆USGS NHD data:
܆USGS 8 and 12 digit HUC maps:
܈U.S. Geological Survey map(s). Cite scale & quad name: Figure 2, USGS Topographic Quadrangle (7.5-
minute quadrangles Mount Holly and Mountain Island Lake, NC)
܈Natural Resources Conservation Service Soil Survey. Citation: Figure 4, NRCS Soils Survey (Web Soil Survey
of Mecklenburg County)
܈National wetlands inventory map(s). Cite name: Figure 5, NHD, NWI, and FEMA Floodplains (USFWS
NWI Mapper)
܆State/local wetland inventory map(s):
܈FEMA/FIRM maps: Figure 5, NHD, NWI, and FEMA Floodplains (National Flood Hazard Layer)
܆100-year Floodplain Elevation is: (National Geodetic Vertical Datum of 1929)
܈ Photographs: ܈ Aerial (Name & Date): Figure 1, Project Vicinity (Dated 11/09/21), Figure 3, Aerial Imagery
and Mecklenburg County Parcels (Dated 11/09/21) and Figure 6, Potentially Jurisdictional Waters of the U.S. (Dated
11/09/21)
or ܈ Other (Name & Date): Photographs 1-4
܆Previous determination(s). File no. and date of response letter:
܈ Other information (please specify): NCDWQ Stream Identification Forms, Version 4.11 (Dated 09/03/21)

IMPORTANT NOTE: The information recorded on this form has not necessarily been verified by the Corps
and should not be relied upon for later jurisdictional determinations.

Signature and date of Regulatory
staff member completing PJD
12/7/2021

Signature and date of person requesting PJD
(REQUIRED, unless obtaining the signature is
impracticable) 1

1 Districts may establish timeframes for requester to return signed PJD forms. If the requester does not respond within the established
time frame, the district may presume concurrence and no additional follow up is necessary prior to finalizing an action.
Bryan Roden-Reynolds
2021.12.07 08:18:26 -05'00'
PATH: \\CLTSMAIN\GIS_DATA\GIS\PROJECTS\3018_CHARLOTTEWATER\10137229_LONGCREEKWWTP\7.2_WIP\MAP_DOCS\MXD\NWP\UPDATE_2021\PJD\06A_LONGCREEK_JD.MXD - USER: KTHAMES - DATE: 11/22/2021STOWE REGIONAL WRRF & ASSOCIATED INFRASTRUCTURE PROJECTFIGURE 6POTENTIALLY JURISDICTIONAL WATERS OF THE U.S.APPROVED JURISDICTIONAL DETERMINATION VERIFICATIONODELINEATION BOUNDARIES CREATED BYGPS POINTS COLLECTED USING TRIMBLE GEO7XRLEGENDAdditional AreaProject SitePotentiallyJurisdictional StreamPotentiallyJurisdictionalWetlandsJurisdictionalPerennial RPWTributaryJurisdictionalSeasonal RPWTributaryJurisdictionalWetlandsNon-404 IsolatedWetlandUpland Data PointsWetland Data PointsÀÀ!(PhotographsSAW#: 2019-01988Author: KTHAMESDate: 11/22/2021Data Source: HDR GIS ShapefilesBasemap Source: NC OneMap Orthoimagery0750375FeetService Layer Credits: NC Center for GeographicInformation & AnalysisÀÀ!(ÀÀ!(ÀÀ!(21321ÀÀ!(4Potential Tributary IntermittentStream 8620 lfPotential Wetland - PFOWetland 17 0.15 acPotential Tributary PerennialStream 9236 lfPotential Tributary IntermittentStream 10752 lfO0200100FeetO012060FeetPotential Wetland - Wetland 10(continuation of original W10)1.28 ac.Potential TNWCatawba River0.40 ac.Potential TNWCatawba River0.25 ac.
Charlotte Water – Stowe Regional WRRF | HDD EQ Basin 2 Spoils Area Environmental Management Plan Attachment D – Historical Sampling Data

D
Attachment D –
Historical Sampling
Data

Summary of Groundwater Quality Data
Stowe Regional WRRF
Charlotte, North Carolina
Attachment D - Groundwater Samples
EMP Project Well ID Date Northing Easting
Benzo(a)
anthracene
Benzo(a)
pyrene
Benzo(b)
fluoranthrene
Benzo(g,h,i)
perylene
Benzo(k)
fluoranthene Chrysene Dibenzo(a,h)
anthracene
Di-n-
octylphthalate
bis(2-Ethylhexyl
phthalate
Indeno (1,2,3-
cd) pyrene
Stowe Regional
WRRF MW-1WPC 9/30/2008 563792.5650 1401460.8040 ND ND ND ND ND ND ND ND ND ND
Unknown MW-2
WPC 9/30/2008 NM NM ND ND ND ND ND ND ND ND ND ND
Stowe HW&IPS MW-6
WPC 2008 563365.2927 1402822.4694 ND ND ND ND ND ND ND ND ND ND
11/10/2008 NA NA NA NA NA NA NA NA NA NA
11/4/2009 NA NA NA NA NA NA NA NA NA NA
11/5/2010 NA NA NA NA NA NA NA NA NA NA
11/15/2011 NA NA NA NA NA NA NA NA NA NA
11/12/2012 NA NA NA NA NA NA NA NA NA NA
11/4/2013 NA NA NA NA NA NA NA NA NA NA
11/4/2014 NA NA NA NA NA NA NA NA NA NA
11/10/2015 NA NA NA NA NA NA NA NA NA NA
2/16/2021 NA NA NA NA NA NA NA NA NA NA
10/19/2017 ND ND ND ND ND ND ND ND ND ND
2/16/2021 NA NA NA NA NA NA NA NA NA NA
1982 NA NA NA NA NA NA NA NA NA NA
11/20/2015 NA NA NA NA NA NA NA NA NA NA
2/16/2021 NA NA NA NA NA NA NA NA NA NA
TW-01T 9/13/2017 545104.891 1407580.2160 ND ND ND ND ND ND ND ND ND ND
TW-02T 9/13/2017 546717.935 1401666.1730 ND ND ND ND ND ND ND ND ND ND
TW-03T 9/22/2017 563403.925 1402570.782 1.7J 1.4J 1.7J 2.2J 2.2J 2.4J 2.6J 2.3J 1.9J 2.1J
Long Creek PS MW-93SME 1/14/2020 562695.627 1402979.353 ND ND ND ND ND ND ND ND ND ND
1/30/2020 ND ND ND ND ND ND ND ND 118 ND
3/27/2020 ND ND ND ND ND ND ND NA ND ND
0.05 0.005 0.05 200 0.5 5 0.005 100 3 0.05
Notes:
1. WPC = Data from WPC, October 2008.
2. H&H = Hart & Hickman; data collected during periodic monitoring events.
3. T = Data from Terracon, October 2017.
4. SME = Data from S&ME, January 2020.
5. SME/HDR = Initial sample collected by S&ME in January 2020; confirmaation smaple collected by HDR in March 2020.
6. ND = Not detected above the laboratory reporting limit.
7. NA = Not analyzed.
8. Concentrations reported in micrograms per liter (ug/L).
9. 2L Standards from 15A NCAC 02L .0202, as proposed for amendment on December 29, 2020.
10. Concentrations in bold and underlined type exceeded 2L Standards.
11. EMP Projects are referenced to associated Environmentral Management Plan Figure 3.
North Access Road
Stowe HW&IPS
Flow EQ Basin
2L Standards
SVOCs
MW-96SME/HDR 562075.725 1402310.141
MW-7H&H
MW-8AH&H
WQ-18H&H
NM NM
NM NM
NM NM
Summary of Groundwater Quality Data
Stowe Regional WRRF
Charlotte, North Carolina
Attachment D - Groundwater Samples
EMP Project Well ID Date Northing Easting Chloromethane Chlorobenzene 1,2-Dichlorobenzene 1,3-Dichlorobenzene
1,4-
Dichlorobenzene Ethylbenzene Tetrachloroethene
(PCE)Toluene Total Xylenes
Stowe Regional
WRRF MW-1WPC 9/30/2008 563792.5650 1401460.8040 ND ND ND ND ND ND ND ND ND
Unknown MW-2
WPC 9/30/2008 NM NM ND ND ND ND ND ND ND ND ND
Stowe HW&IPS MW-6
WPC 2008 563365.2927 1402822.4694 ND ND ND ND ND ND ND ND ND
11/10/2008 ND ND ND ND ND ND ND ND ND
11/4/2009 ND 0.62 0.54 ND ND ND ND ND ND
11/5/2010 ND ND ND ND ND ND ND ND ND
11/15/2011 ND 0.69 0.62 ND ND ND ND ND ND
11/12/2012 ND 0.72 0.56 ND ND ND ND ND ND
11/4/2013 ND 0.65 0.67 ND ND ND ND ND ND
11/4/2014 ND 0.68 0.63 ND ND ND ND ND ND
11/10/2015 ND 0.64 0.51 ND ND ND ND ND ND
2/16/2021 1.0 ND ND ND ND ND ND ND ND
10/19/2017 ND ND ND ND ND ND ND ND ND
2/16/2021 ND ND ND ND ND ND ND ND ND
1982 NA NA NA NA NA NA NA NA NA
11/20/2015 NA NA NA NA NA NA NA NA NA
2/16/2021 NA NA NA NA NA NA NA NA NA
TW-01T 9/13/2017 545104.891 1407580.2160 ND ND ND ND ND ND ND ND ND
TW-02T 9/13/2017 546717.935 1401666.1730 ND ND ND ND ND ND ND ND ND
TW-03T 9/22/2017 563403.925 1402570.782 2.6 ND ND ND ND ND ND ND ND
Long Creek PS MW-93SME 1/14/2020 562695.627 1402979.353 ND ND ND ND ND ND ND ND ND
1/30/2020 ND ND ND ND ND ND ND ND ND
3/27/2020 NA NA NA NA NA NA NA NA NA
3 50 20 200 6 600 0.7 600 500
Notes:
1. WPC = Data from WPC, October 2008.
2. H&H = Hart & Hickman; data collected during periodic monitoring events.
3. T = Data from Terracon, October 2017.
4. SME = Data from S&ME, January 2020.
5. SME/HDR = Initial sample collected by S&ME in January 2020; confirmaation smaple collected by HDR in March 2020.
6. ND = Not detected above the laboratory reporting limit.
7. NA = Not analyzed.
8. Concentrations reported in micrograms per liter (ug/L).
9. 2L Standards from 15A NCAC 02L .0202, as proposed for amendment on December 29, 2020.
10. Concentrations in bold and underlined type exceeded 2L Standards.
11. EMP Projects are referenced to associated Environmentral Management Plan Figure 3.
North Access Road
Stowe HW&IPS
Flow EQ Basin
VOCs
2L Standards
MW-96SME/HDR 562075.725 1402310.141
MW-7H&H
MW-8AH&H
WQ-18H&H
NM NM
NM NM
NM NM
Summary of Groundwater Quality Data
Stowe Regional WRRF
Charlotte, North Carolina
Attachment D - Groundwater Samples
EMP Project Well ID Date Northing Easting Arsenic Barium Berylium Chromium Cobalt Copper Iron Lead Manganese Nickel Selenium Vanadium Zinc
Stowe Regional
WRRF MW-1WPC 9/30/2008 563792.5650 1401460.8040 NA NA NA NA NA NA NA NA NA NA NA NA NA
Unknown MW-2
WPC 9/30/2008 NM NM NA NA NA NA NA NA NA NA NA NA NA NA NA
Stowe HW&IPS MW-6
WPC 2008 563365.2927 1402822.4694 NA NA NA NA NA NA NA NA NA NA NA NA NA
11/10/2008 NA NA NA NA NA NA 660 NA NA NA NA NA NA
11/4/2009 NA NA NA NA NA NA 2700 NA NA NA NA NA NA
11/5/2010 NA NA NA NA NA NA 450 NA NA NA NA NA NA
11/15/2011 NA NA NA NA NA NA 5600 NA NA NA NA NA NA
11/12/2012 NA NA NA NA NA NA 4600 NA NA NA NA NA NA
11/4/2013 NA NA NA NA NA NA 1600 NA NA NA NA NA NA
11/4/2014 NA NA NA NA NA NA ND NA NA NA NA NA NA
11/10/2015 NA NA NA NA NA NA ND NA NA NA NA NA NA
2/16/2021 NA NA NA NA ND NA 220 NA 2.0 NA NA NA NA
10/19/2017 ND 59 ND ND ND ND 650 ND 24 ND ND 16 ND
2/16/2021 NA NA NA NA ND NA 93 NA ND NA NA NA NA
1982 NA NA NA 120 NA 240 NA NA NA 62 NA NA 190
11/20/2015 ND 7.5 ND ND 0.32 2.2 91 3.9 71 2.4 ND 8.2 ND
2/16/2021 NA NA NA NA ND NA ND NA ND NA NA NA NA
TW-01T 9/13/2017 545104.891 1407580.2160 NA 65.5 NA NA NA NA NA NA NA NA NA NA NA
TW-02T 9/13/2017 546717.935 1401666.1730 NA 23.9 NA NA NA NA NA NA NA NA NA NA NA
TW-03T 9/22/2017 563403.925 1402570.782 NA 63.9 NA NA NA NA NA NA NA NA NA NA NA
Long Creek PS MW-93SME 1/14/2020 562695.627 1402979.353 ND 13 ND ND NA NA NA ND NA NA ND NA NA
1/30/2020 ND 130 NA 9.2 NA NA NA ND NA NA ND NA NA
3/27/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA
10 700 4 10 1 1000 300 15 50 100 20 7 1000
Notes:
1. WPC = Data from WPC, October 2008.
2. H&H = Hart & Hickman; data collected during periodic monitoring events.
3. T = Data from Terracon, October 2017.
4. SME = Data from S&ME, January 2020.
5. SME/HDR = Initial sample collected by S&ME in January 2020; confirmaation smaple collected by HDR in March 2020.
6. ND = Not detected above the laboratory reporting limit.
7. NA = Not analyzed.
8. Concentrations reported in micrograms per liter (ug/L).
9. 2L Standards from 15A NCAC 02L .0202, as proposed for amendment on December 29, 2020.
10. Concentrations in bold and underlined type exceeded 2L Standards.
11. EMP Projects are referenced to associated Environmentral Management Plan Figure 3.
North Access Road
Stowe HW&IPS
Flow EQ Basin
Metals
2L Standards
MW-96SME/HDR 562075.725 1402310.141
MW-7H&H
MW-8AH&H
WQ-18H&H
NM NM
NM NM
NM NM
Summary of Soil Quality Data
Stowe Regional WRRF
Charlotte, North Carolina
Attachment D - Soil Samples
SVOCs PCBs
Acetone 2-Butanone
(MEK)Chlorobenzene 1,2-Dichloro-
benzene
Methylene
Chloride
p-Isopropyl-
toluene
MS-SOUTH 563378.4760 1401632.6690 0.98 182 0.53 18.9 NA 8.0 0.0059 ND NA NA NA NA NA NA NA NA NA
MS-NORTH 563457.0730 1401691.4090 1.6 95.5 1.1 55.9 NA 14.9 0.065 ND NA NA NA NA NA NA NA NA NA
MS-EAST (0-1')NM NM ND 84.4 4.4 37.6 ND 6.8 0.017 0.7 NA NA NA NA NA NA NA NA NA
MS-WEST (0-1')NM NM 1.1 204 2.4 51.2 ND 6.5 0.098 ND NA NA NA NA NA NA NA NA NA
ABANDONED EFF.
CHANNEL 0-2ft 563832.8546 1401006.933
2.0 25.3 0.66 21.0 NA 10.3 0.11 ND NA ND ND ND ND ND ND ND ND
ABANDONED EFF.
CHANNEL 2-4ft 563832.8546 1401006.933
2.8 223J 0.53 26.4 NA 10.1 0.023 2.8 NA ND ND ND ND ND ND ND ND
LONG CREEK (LC)
SEDIMENT (0-2')NM NM
2.4 103 ND 30.3 NA 13.4 0.05 1.9 NA 121 ND ND ND ND ND ND ND
LONG CREEK (LC)
SEDIMENT (2-4')NM NM
2.2 92.4 ND 29.3 NA 8.2 0.052 3.0 NA 126 ND ND ND ND ND ND ND
LC DOWNSTREAM (DS)
SEDIMENT (0.5-2')NM NM
1.5 90.6 0.30 16.9 ND 6.8 0.025 1.5 ND NA NA NA NA NA NA ND NA
LC DOWNSTREAM (DS)
SEDIMENT (2-4')NM NM
2.2 109 0.13 20.5 ND 8.0 0.031 1.9 ND NA NA NA NA NA NA ND NA
LC UPSTREAM (US)
SEDIMENT (0.5-2')NM NM
NA NA NA 26.2 ND NA NA NA NA NA NA NA NA NA NA NA NA
LC UPSTREAM (US)
SEDIMENT (2-4')NM NM
NA NA NA 21.3 ND NA NA NA NA NA NA NA NA NA NA NA NA
BKGRND1(0.5-2')NM NM 0.99 73 0.67 41.5 NA 7.5 0.026 2 NA NA NA NA NA NA NA NA NA
BKGRND1(2'-4')NM NM 0.94 58.6 0.2 30.5 NA 5.8 0.024 1.7 NA NA NA NA NA NA NA NA NA
BKGRND2(0.5-2')NM NM 0.55 47.8 0.088 41.4 NA 5.1 0.014 2.2 NA NA NA NA NA NA NA NA NA
BKGRND2(2'-4')NM NM 0.78 40.4 0.33 80.5 NA 5 0.01 2.3 NA NA NA NA NA NA NA NA NA
BKGRND3(0.5-2')NM NM 0.65 81.2 1.8 126 NA 8.4 0.014 2.1 NA NA NA NA NA NA NA NA NA
BKGRND3(2'-4')NM NM ND 126 5.5 132 NA 6.6 0.017 ND NA NA NA NA NA NA NA NA NA
BKGRND4(0.5-2')NM NM ND 50.6 0.35 19.3 NA 4.8 0.012 1.2 NA NA NA NA NA NA NA NA NA
BKGRND4(2'-4')NM NM ND 40.9 0.23 8.8 NA 3.2 0.0063 ND NA NA NA NA NA NA NA NA NA
BKGRND5(0.5-2')NM NM 0.83 70.3 ND 18.1 NA 6.2 0.02 2 NA NA NA NA NA NA NA NA NA
BKGRND5(2'-4')NM NM 0.76 57.1 ND 13.7 NA 4.3 0.023 2.1 NA NA NA NA NA NA NA NA NA
EP 1 (0.5-2')NM NM 0.91 42.3 2 33 ND 7 0.033 1.7 NA NA NA NA NA NA NA NA NA
EP 1 (2-4')NM NM 1.3 66.8 0.87 14.8 ND 5.4 0.02 0.85 NA NA NA NA NA NA NA NA NA
EP 2 (0.5-2')NM NM 1.3 99.3 2.9 30.8 ND 5.4 0.043 2.3 NA NA NA NA NA NA NA NA NA
EP 2 (2-4')NM NM 0.64 73.8 1.4 18.2 ND 2.9 0.013 0.68 NA NA NA NA NA NA NA NA NA
EP 2 (0-5, 15-20, 20-25)
DEEP COMPOSITE NM NM ND 97.5 ND 14.1 ND 2.4 ND 1.8 NA
NA NA NA NA NA NA NA NA
EP-3 (0-2')NM NM 1.5 111 3 35.2 ND 9.5 0.041 2.3 NA NA NA NA NA NA NA NA NA
EP-3 (2-4')NM NM 0.83 71.8 3.4 37.2 ND 7.6 0.11 2.9 NA NA NA NA NA NA NA NA NA
WP-1 (0-2')NM NM 1.2 261 1.3 78.9 ND 3.9 0.0092 ND NA NA NA NA NA NA NA NA NA
WP-1 (2-4')NM NM 1.2 135 0.11 7.5 ND 3.1 ND ND NA NA NA NA NA NA NA NA NA
WP-2 (0-2')NM NM ND 298 2.8 59.6 ND 2.1 ND ND NA NA NA NA NA NA NA NA NA
WP-2 (5-10, 15-20, 25-
29) DEEP COMPOSITE NM NM ND 284 ND 27.1 ND 0.95 ND ND NA
NA NA NA NA NA NA NA NA
WP-3 (0-2')NM NM 1.1 220 2.2 32 ND 9.4 ND ND NA NA NA NA NA NA NA NA NA
WP-3 (2-4')NM NM 0.45 248 0.89 7 ND 5.6 ND ND NA NA NA NA NA NA NA NA NA
SOIL STOCKPILE (SS)NM NM 1.9 114 1.3 28.8 15.6 9.7 0.027 3.3 NA NA NA NA NA NA NA NA NA
AEC 1 (0.5-2')NM NM 0.49 45.6 5.1 66.7 ND 8.3 0.076 3.6 NA NA NA NA NA NA NA NA NA
Sample ID Northing Easting
Phase II ESA - Black & Veatch (2008)Arsenic Barium Cadmium
Total
Chromium
Hexavalent
Chromium Lead Mercury Selenium Silver
VOCs
Summary of Soil Quality Data
Stowe Regional WRRF
Charlotte, North Carolina
AEC 1 (2-4')NM NM 0.64 51.8 5 80.8 ND 7.2 0.075 5.6 NA NA NA NA NA NA NA NA NA
AEC 2 (0.5-2')NM NM 0.59 121 2.2 19.4 ND 6.6 0.0088 1.6 NA NA NA NA NA NA NA NA NA
AEC 2 (2-4')NM NM 0.91 103 2 15.4 ND 6.1 0.065 1.3 NA NA NA NA NA NA NA NA NA
B-3 563344.2840 1401401.8240 0.98 182 0.53 18.9 NA 8.0 0.0059 ND ND ND ND ND ND ND ND ND ND
BG-1 562802.997 1402920.4 1.0 49.2 NA 6 NA 3.2 ND ND NA NA NA NA NA NA NA NA NA
BG-2 562406.449 1402612.692 0.39J 118 NA 7.3 NA 3.0 0.005 ND NA NA NA NA NA NA NA NA NA
SB-01 (0-5')563743.168 1401550.626 0.95J 516 NA 110 NA 5.6 ND ND 0.36J 0.0205J ND ND ND ND ND NA NA
SB-02 (0-5')563421.434 1401414.641 ND 486 NA 31.0 NA 2.3 ND ND ND 0.0252J ND ND ND 0.0037J ND NA NA
SB-03 (0-5')563273.958 1401240.390 0.54J 243 NA 22.2 NA 4.9 ND ND ND ND ND ND ND ND ND NA NA
SB-04 (15-20')562850.236 1401288.500 ND 89.1 NA 69.6 NA 1.7 ND ND ND ND ND ND ND ND ND NA NA
SB-05 (5-10')562518.035 1401273.979 1.3J 149 NA 26.1 NA 4.6 0.022 3.0 ND ND ND ND ND ND ND NA NA
SB-06 (5-10')562748.205 1401752.917 ND 326 NA 75.5 NA 4.4 ND 3.3 ND ND ND ND ND ND ND NA NA
SB-07 (10-15')562919.040 1401618.886 0.54J 252 NA 7.2 NA 3.7 ND ND ND ND ND ND ND ND ND NA NA
SB-08 (0-5')563285.158 1401568.797 ND 135 NA 19.5 NA 7.2 ND ND ND ND ND ND ND ND ND NA NA
SB-09 (5-10')563430.449 1401657.142 ND 144 NA 4.5 NA 6.2 0.0046J ND ND 0.0144J ND ND ND ND ND NA NA
SB-10 (5-10')563565.819 1401854.111 2.4 85.3 NA 32.9 NA 8.3 0.018 ND ND 0.231 0.0295J ND ND ND 0.0411 NA NA
B-102 (1'-3')2.1 56.4 <0.11 20.5 NA 3.4 0.036 NA <0.54 ND ND ND ND ND ND ND NA
B-102 (11'-13')1.3 78.7 <0.085 21.3 NA 2.5 0.021 NA <0.42 ND ND ND ND ND ND ND NA
B-102 (21'-23')0.86 69.3 <0.081 11.3 NA 0.63 <0.0023 NA <0.40 ND ND ND ND ND ND ND NA
B-93 (1'-3')0.71 88.8 <0.070 12.6 NA 2.0 0.0093 NA <0.35 ND ND ND ND ND ND ND NA
B-93 (11'-13')<0.97 62.7 <0.097 160 NA 0.92 <0.0051 NA <0.49 ND ND ND ND ND ND ND NA
B-93 (21'-23')1.1 42.9 <0.082 40.3 NA 4.3 0.012 NA <0.41 ND ND ND ND ND ND ND NA
B-98 (2'-4')1.2 58.7 <0.087 128 NA 2.9 0.013 NA <0.43 ND ND ND ND ND ND ND NA
B-98 (12'-14')<0.84 56.8 <0.084 120 NA 0.86 <0.0043 NA <0.42 ND ND ND ND ND ND ND NA
B-101 (1'-3')2.2 51.6 <0.098 73.8 NA 5.7 0.099 NA <0.49 ND ND ND ND ND ND ND NA
B-101 (10'-12')1.4 60.9 <0.087 70.8 NA 3.8 0.020 NA <0.43 ND ND ND ND ND ND ND NA
B-96 (1'-3')2.3 126 <0.073 24.1 NA 5.9 0.053 NA <0.36 ND ND ND ND ND ND ND NA
B-96 (11'-13')0.77 176 <0.076 11.5 NA 3.2 <0.0046 NA <0.38 ND ND ND ND ND ND ND NA
B-97 (5'-7')2.1 31.6 <0.094 70.6 NA 3.5 0.023 NA <0.47 ND ND ND ND ND ND ND NA
B-97 (15'-17')1.8 63.5 <0.10 62 NA 5.7 0.037 NA <0.52 205 ND ND ND ND ND ND NA
B-97 (23'-25')1.2 481 <0.080 466 NA 1.7 <0.0034 NA <0.40 ND ND ND ND ND ND ND NA
B-98 (15'-17')561697.296 1402302.505 1.7 48.2 0.19 27.7 NA <0.52 0.013 NA <0.52 ND ND ND ND ND ND ND NA
B-99 (4'-6')5.7 43.2 0.3 142 NA 7.5 0.17 NA 1.3 ND ND ND ND ND ND ND NA
B-99 (14'-16')1.7 108 0.23 82.6 NA <0.42 <0.0055 NA <0.42 ND ND ND ND ND ND ND NA
B-99 (24'-26')1.3 40.7 0.4 25.5 NA 3.9 <0.0037 NA <0.30 ND ND ND ND ND ND ND NA
B-99 (34'-35')1.4 33.7 0.2 15.1 NA 3.4 <0.0057 NA <0.37 ND ND ND ND ND ND ND NA
B-101 (14'-21')561867.14 1402544.74 2.4 46.9 0.25 58.8 NA 1.0 <0.0045 NA <0.44 ND ND ND ND ND ND ND NA
HF-16.OE (1')<0.80 NA NA 24.9 <5.4 NA NA NA NA ND ND ND ND ND ND ND NA
HF-16.OE (13')<0.67 NA NA 17.3 <5.3 NA NA NA NA ND ND ND ND ND ND ND NA
P-1 (1')1.0 NA NA 47.6 <5.9 NA NA NA NA ND ND ND ND ND ND ND NA
P-1 (19')<1.1 NA NA 46.1 <5.1 NA NA NA NA ND ND 0.311 ND ND ND ND NA
P-2 (1')<1.1 NA NA 29.5 <5.3 NA NA NA NA ND ND ND ND ND ND ND NA
P-2 (12')<0.81 NA NA 161 <5.1 NA NA NA NA ND ND ND ND ND ND ND NA
P-3 (1')<1.1 NA NA 115 <5.5 NA NA NA NA ND ND ND ND ND ND ND NA
P-3 (12')<0.90 NA NA 78.0 <5.6 NA NA NA NA ND ND ND ND ND ND ND NA
P-4 (1')1.4 NA NA 26.4 <5.5 NA NA NA NA 0.0983 ND ND ND ND ND ND NA
P-4 (17')<0.93 NA NA 58.2 <4.7 NA NA NA NA ND ND ND 0.0085 ND ND ND NA
P-5 (2')2.4 NA NA 121 <5.4 NA NA NA NA ND ND ND ND ND ND ND NA
P-5 (12')<0.99 NA NA 27.1 <5.1 NA NA NA NA ND ND ND ND ND ND ND NA
P-6 (1')<1.0 NA NA 24.0 <4.3 NA NA NA NA ND ND ND ND ND ND ND NA
P-6 (7')<0.77 NA NA 16.3 <4.0 NA NA NA NA ND ND ND ND ND ND ND NALimited Assessment Report - S&ME (2020)563141.328 1402719.689
562695.627 1402979.353
561697.296 1402302.505
561867.14 1402544.74
562075.725 1402310.141
562033.948 1402757.06
561683.426 1402809.695Terracon (2017)HDR Duke Energy Transmission Line Assessment (May 2020)
567578.5852 1403546.409
567501.0020 1403572.0990
567443.9800 1403426.0190
567133.3210 1403476.8780
566644.0450 1403415.8140
566216.6714 1403410.2036
565859.0560 1403166.7940
Summary of Soil Quality Data
Stowe Regional WRRF
Charlotte, North Carolina
P-7 (1')1.8 NA NA 24.4 <6.5 NA NA NA NA ND ND ND ND ND ND ND NA
P-7 (13')<1.1 NA NA 13.5 <5.8 NA NA NA NA ND ND ND ND ND ND ND NA
P-8 (1')0.80 NA NA 9.4 <5.6 NA NA NA NA ND ND ND ND ND ND ND NA
P-8 (13')<0.60 NA NA 6.0 <4.1 NA NA NA NA ND ND ND ND ND ND ND NA
P-9 (1')1.1 NA NA 166 <6.0 NA NA NA NA ND ND ND ND ND ND ND NA
P-9 (23')<0.91 NA NA 13.4 <6.0 NA NA NA NA ND ND ND ND ND ND ND NA
HF-10 (1')1.7 NA NA 43.9 <4.7 NA NA NA NA ND ND ND ND ND ND ND NA
HF-10 (28')0.92 NA NA 34.4 <5.3 NA NA NA NA ND ND ND ND ND ND ND NA
EP (1')<1.1 NA NA 7.3 <6.3 NA NA NA NA ND ND ND ND ND ND ND NA
EP (34')<0.95 NA NA 8.0 <5.2 NA NA NA NA ND ND ND ND ND ND ND NA
LD-1 562538.263 1402443.054 <1.5 45.0 <0.061 3.5 NA 2.8 <0.0023 0.34J <0.31 NA NA NA NA NA NA NA NA
LD-2 562435.958 1402588.153 <1.6 83.5 <0.064 35.2 NA 3.8 0.0099 2.3 <1.6 NA NA NA NA NA NA NA NA
LD-4 562198.108 1402270.521 0.65J 159 <0.086 15.2 NA 3.4 0.031 0.55J <2.1 NA NA NA NA NA NA NA NA
EQ-1 562138.309 1402582.150 1.4J 34.6 <0.47 9.3 NA 14.4 0.011 1.0 <0.47 NA NA NA NA NA NA NA NA
EQ-2 562017.206 1402341.796 1.2J 144 <0.40 24.5 NA 11.0 0.035 0.93 <0.40 NA NA NA NA NA NA NA NA
EQ-4/6 561778.033 1402089.803 <2.4 101 <0.095 26.9 NA 4.9 0.093 3.7 <4.7 NA NA NA NA NA NA NA NA
EQ-5 561712.461 1402489.082 <2.3 16.6 <0.093 14.5 NA 9.4 0.090 0.98 <0.47 NA NA NA NA NA NA NA NA
LC-2 562204.785 1401741.403 <1.6 66.3 <0.065 18.9 NA 0.81 0.0031 0.61J <3.2 NA NA NA NA NA NA NA NA
BP-1 562562.138 1401639.069 <2.1 78.1 <0.083 42.3 NA 7.6 0.050 3.3 <2.1 NA NA NA NA NA NA NA NA
BP-3 562501.711 1401224.719 <2.3 78.6 <0.094 35.4 NA 1.8 0.082 2.1 <2.3 NA NA NA NA NA NA NA NA
BP-7 562949.247 1401559.429 0.72J 202 <0.39 4.3 NA 6.1 <0.0022 0.65J <0.39 NA NA NA NA NA NA NA NA
BP-9 562852.359 1401238.076 0.59J 206 <0.36 32.0 NA 6.7 <0.0022 0.53J <0.36 NA NA NA NA NA NA NA NA
BP-10 563077.277 1401258.443 0.78J 108 <0.43 6.8 NA 11.1 0.0028J 0.66J <0.43 NA NA NA NA NA NA NA NA
BP-12 563157.572 1401626.322 <2.5 444 0.45J 48.8 NA 10.8 0.0026J 1.6 <0.49 NA NA NA NA NA NA NA NA
RS-1 562286.762 1402982.754 1.1J 92.7 <0.086 9.9 NA 0.85J 0.010 <0.86 <0.43 NA NA NA NA NA NA NA NA
RS-2 562589.391 1402741.693 1.7J 67.4 <0.099 21.9 NA 10.4 0.038 0.54J <0.050 NA NA NA NA NA NA NA NA
POND-2 563710.524 1401662.268 2.9 17.4 <0.46 13.5 NA 9.3 0.072 1.8 <0.46 NA NA NA NA NA NA NA NA
POND-4 563910.348 1401591.384 0.93J 210 <0.38 49.7 NA 6.9 <0.0022 0.44J <0.38 NA NA NA NA NA NA NA NA
POND-5 564098.537 1401736.072 0.97J 144 <0.33 13.1 NA 5.8 0.0072 0.97 <0.33 NA NA NA NA NA NA NA NA
POND-6 564250.596 1401939.428 2.4 43.4 <0.46 18.0 NA 10.6 0.043 1.4 <0.46 NA NA NA NA NA NA NA NA
POND-8 563709.860 1401875.378 0.84J 253 <0.35 36.1 NA 8.8 <0.0037 0.64J <0.35 NA NA NA NA NA NA NA NA
3.0 47,000 110 350,000 6.5 NS 9.7 1,200 1,200 140,000 40,000 280 2,000 650 NS NS NS
Protection of Groundwater PSRG 5.8 580 3.0 360,000 3.8 270 1.0 2.1 3.4 25 17 0.68 0.39 0.025 1.24 NS NS
1. Concentrations reported in milligrams per kilogram (mg/kg).
2. Concentrations in bold and underlined type exceeded the Industrial/commercial PSRGs.
3. Shaded concentrations exceeded the Protection of groundwater PSRG.
4. NA = Not analyzed.
5. <0.33 = Concentration did not exceed the laboratory reporting limit.
6. Concentrations with a "J" qualifier exceeded the method detection limit but did not exceed the reporting limit (estimated concentration).
7. NS = No standard; SVOCs and PCBs have individual standards, but concentrations were not detected above the reporting limit, so results were cumulatively "ND".
Industrial/Commercial Health
Based PSRGBackground Soil Evaluation - HDR (July 2021)HDR Duke Energy Transmission Line Assessment (May 2020)
565545.6950
564335.6580 1402146.1430
564226.3645 1402055.6624
1402951.5180
567986.4650 1402813.2910
564628.3848 1402516.0669

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704.338.6700 hdrinc.com
© 2022 HDR, Inc., all rights reserved

440 S Church Street, Suite 1000 Charlotte, NC 28202-2075
704.338.6700 hdrinc.com
© 2022 HDR, Inc., all rights reserved