HomeMy WebLinkAbout20000359 Ver 1_COMPLETE FILE_20000315State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
e??
AAWWWOMM% James B. Hunt, Jr., Governor NC ENR
Bill Holman, Secretary NORTH CAROLINA DEPARTMENT OF
Kerr T. Stevens, Director ENVIRONMENT AND NATURAL RESOURCES
March 27, 2000
Thrasher Mine
Elbow Road Farms
1400 Elbow Road
Chesapeake, VA 23320
Dear Sirs:
Re: Proposed Thrasher Mine
Currituck County
DWQ# 000359
The Department of Water Quality (DWQ) staff has reviewed the "Proposed
Monitoring and Pumping Schedules" prepared by Bissell Professional Group, received on
February 15, 2000. This plan is acceptable to DWQ and will not result in violation of
wetland standards with the following changes:
1) Written reports must be sent to DWQ at six month intervals or when
requested by DWQ. One copy of the reports shall be sent to the Central
Office of DWQ, and one copy sent to DWQ's Washington Regional Office.
2) The rim ditch shall be extended to the east of the recharge basin to protect all
wetlands on the site.
3) Monitoring shall be on a weekly basis.
4) The water from the recharge basin shall be directed to sheet flow into the
wetlands.
5) Wells shall be installed following protocols established by the DWQ, Ground
Water section.
Please contact me at (919) 733-9646 if you have any questions.
1 ,
o n Domey
CC: Robert Tankard; DWQ Washington Regional O re
Mark Bissell; Bissell Professional Group
Central Files
Wetlands/401 Unit 4401 Reedy Creek Road Raleigh, North Carolina 27607
Telephone 919-733-1786 FAX # 733-9959
An Equal Opportunity Affirmative Action Employer
50% recycled/10% post consumer paper
e?,k-
5kee, &IK-Q-
E1
SccgPa ?e, VA- .? 3 3Z-0
-> 0t S? 4z.5
Ar-
A
-1
a ? m f
r? l war 1 . w
V rl?
7 wo c 'e5
- a?
ox b?e -Z?k44J 7?
P Mo 0?1 UZI* 4V.5l'-s
d-G LL
???s? YeACAA,
va
4';4
"oo
Elbow Road Farms Phone 757.547.3900
Thrasher Mining Operation 1400 Elbo eRd. 23320 Fax 757.547.7384
Chesape?, VA
Proposed Monitoring and
Pumping Schedules
at 5 aJU
fail'; II`/ SE 110x."
Provided By:
Bissell Professional Group Inc.
4417 North Croatan Hwy.
Kitty Hawk, North Carolina 27949
Phone 252.261.3266
Fax 2W,2G60
w C'' n
0
d
M
u' a
/ j J .a
V&
Dewatering Summary
Dewatering of the mine area for excavation purposes will consist of a 1900 gpm,
80 HP, stationary Detroit 353 centrifugal pump with a 6" diameter discharge pipe.
This pipe will discharge into the 4100 lineal foot vegetative recharge ditch that is
located along the northern, western, and southern perimeter of the mine. Water
flow is conveyed from the recharge ditch into a .13 ac. settling basin located along
the southern boundary of the mine. Sediment from the groundwater is deposited
into the settling basin, flows through a recharge basin and into the adjoining
wetlands via a vegetative filter.
Pumping Schedule
Pumping of groundwater from the proposed mining operation will be limited to (5)
eight to ten hour days of continuous pumping followed by two consecutive days of
non-pumping. On average, groundwater pumping will consist of 3 '/z eight to ten
hour days of continuous pumping followed by 3 % days of non-pumping. This
pumping cycle will operate for the duration of the mining pennit, or until monitoring
indicates that the groundwater pumping demonstrates adverse impacts on the
adjacent wetland hydrology.
Monitoring
Monitoring wells are proposed along a transect, located between the mine and the
wetlands at the south boundary line. Three monitor wells will be placed approximately 70
feet on center, along a transect, adjacent to the recharge basin location. An additional well
will be placed up gradient, adjacent to the pump station location,(these locations can be
referenced on the monitor well plan). Water levels in the proposed wells will be monitored
as to provide data as to whether the groundwater pumping adversely effects the wetland
hydrology. Monitoring is of the proposed wells is to take place on a quarterly basis, or as
specified by the North Carolina Division of Water Quality.
Wetlands Impact
It is proposed that resulting impacts to the adjacent wetlands will be minimal, if any, with the
proposed dewatering. With the construction of the recharge ditch, this will enable the
surrounding groundwater to be "replenished", through infiltration, from the effects of
dewatering. Also, by adhering to state standards on temporary groundwater pumping and
monitoring, it is proposed, minimal impacts, if any, will result on the surrounding wetland
hydrology.
The Thrasher Mining Operation consists of a 93.87 acre mine for the excavation
and distribution of sand. The site is located off of Lazy Comer Rd.(S.R. 1222)
within Moyock Township, Currituck County, North Carolina. The following
describes the operational summary of the proposed operation;
Operational Summary
1) The anticipated average daily traffic load count Is 100 loads, with one truck
leaving approximately every six minutes. An occasional large job will increase the
traffic load to approximately 200 loads per day, with one truck leaving every three
minutes.
2) Excavation will consist of stripping overburden, digging dewatering and drainage
ditches will be performed by the use of an excavator. The excavator will either
stockpile material or use dump trucks to haul material to other locations within the
proposed mining area.
3) Loading of sand on delivery dump trucks will be done by a rubber tire front-end
loader and a excavator operating at the mining area entrance.
4) Trucks entering the mining area will be required to stop at the office trailer to
receive load tickets and instructions upon entering and existing the mining area.
Speed limits will posted along the access road to the mining area and will be
strictly enforced.
5) A dewatering pump will be provided and operated as described below.
6) A motor grader will be provided and operated to maintain the access road and
areas of the mining area as deemed necessary. a water truck will be provided to
maintain dust control along the access roadway and mining area. a sweeping
broom tractor will also be utilized to maintain any residual sand and dirt from the
access road entrance. These methods will insure the cleanliness of the adjoining,
(s.r. 1222) public roadway.
7) It is projected that a washing and screening masonry sand plant will be relocated
to within the mining area in two years. The operation of this plant will serve
washing, screening, and stockpiling of sand from within the mining area. a rubber
tired front end loader will be utilized to load the proposed plant and delivery
trucks.
8) It is projected that the number of employees operating at this facility will be 25.
I
Elbow Road Farms Phone 757.547.39 0 g Elbow Rd. 23320 Fax 757.547 7304 00
Thrasher Mining Operation 114
Proposed Monitoring and
Pumping Schedules
Provided By.
Bissell Professional Group Inc.
4417 North Croatan Hwy.
Kitty Hawk, North Carolina 27949
Phone 252.261.3266
Fax 2W, ,O,OI j Je760
R 0/
^2. `o'ff" 1,-. ! ! ' ,? •o ?»
`l ti
4f:
Dewatering Summary
Dewatering of the mine area for excavation purposes will consist of a 1900 gpm,
80 HP, stationary Detroit 353 centrifugal pump with a 6" diameter discharge pipe.
This pipe will discharge into the 4100 lineal foot vegetative recharge ditch that is
located along the northern, western, and southern perimeter of the mine. Water
flow is conveyed from the recharge ditch into a .13 ac. settling basin located along
the southern boundary of the mine. Sediment from the groundwater is deposited
into the settling basin, flows through a recharge basin and into the adjoining
wetlands via a vegetative filter.
Pumping Schedule
Pumping of groundwater from the proposed mining operation will be limited to (5)
eight to ten hour days of continuous pumping followed by two consecutive days of
non-pumping. On average, groundwater pumping will consist of 3 '/ eight to ten
hour days of continuous pumping followed by 3 % days of non-pumping. This
pumping cycle will operate for the duration of the mining permit, or until monitoring
indicates that the groundwater pumping demonstrates adverse impacts on the
adjacent wetland hydrology.
Monitoring
Monitoring wells are proposed along a transect, located between the mine and the
wetlands at the south boundary line. Three monitor wells will be placed approximately 70
feet on center, along a transect, adjacent to the recharge basin location. An additional well
will be placed up gradient, adjacent to the pump station location,(these locations can be
referenced on the monitor well plan). Water levels in the proposed wells will be monitored
as to provide data as to whether the groundwater pumping adversely effects the wetland
hydrology. Monitoring is of the proposed wells is to take place on a quarterly basis, or as
specified by the North Carolina Division of Water Quality.
Wetlands Impact
It is proposed that resulting impacts to the adjacent wetlands will be minimal, if any, with the
proposed dewatering. With the construction of the recharge ditch, this will enable the
surrounding groundwater to be "replenished", through infiltration, from the effects of
dewatering. Also, by adhering to state standards on temporary groundwater pumping and
monitoring, it is proposed, minimal impacts, if any, will result on the surrounding wetland
hydrology.
The Thrasher Mining Operation consists of a 93.87 acre mine for the excavation
and distribution of sand. The site is located off of Lary Comer Rd.(S.R. 1222)
within Moyock Township, Currituck County, North Carolina. The following
describes the operational summary of the proposed operation;
Operational Summary
1) The anticipated average daily traffic load count is 100 loads, with one truck
leaving approximately every six minutes. An occasional large job will increase the
traffic load to approximately 200 loads per day, with one truck leaving every three
minutes.
2) Excavation will consist of stripping overburden, digging dewatering and drainage
ditches will be performed by the use of an excavator. The excavator will either
stockpile material or use dump trucks to haul material to other locations within the
proposed mining area.
3) Loading of sand on delivery dump trucks will be done by a rubber tire front-end
loader and a excavator operating at the mining area entrance.
4) Trucks entering the mining area will be required to stop at the office trailer to
receive load tickets and instructions upon entering and existing the mining area.
Speed limits will posted along the access road to the mining area and will be
strictly enforced.
5) A dewatering pump will be provided and operated as described below.
6) A motor grader will be provided and operated to maintain the access road and
areas of the mining area as deemed necessary. a water truck will be provided to
maintain dust control along the access roadway and mining area. a sweeping
broom tractor will also be utilized to maintain any residual sand and dirt from the
access road entrance. These methods will insure the cleanliness of the adjoining,
(s.r. 1222) public roadway.
7) It is projected that a washing and screening masonry sand plant will be relocated
to within the mining area in two years. The operation of this plant will serve
washing, screening, and stockpiling of sand from within the mining area. a rubber
tired front end loader will be utilized to load the proposed plant and delivery
trucks.
8) It is projected that the number of employees operating at this facility will be 25.
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Washington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
STATE q
ti ?,?v 20. ins
M"RIL 12.E I?
'DES, QUAM ?W
DIVISION OF WATER QUALITY
February 8, 2000
TO: John Dorney
FROM: Robert Tankard4T
Brad Shaver wi0
SUBJECT: Thrasher Mine
Moyock, NC
Curituck County
After reviewing the above plan, this office offers the following comments:
1. The rim ditch should extend to the east of the recharge basin to the point that it will
protect all wetlands. Please see map.
2. Monitoring of the wells shall take place on a weekly basis. v
3. The water from the recharge basin shall sheet flow from the basin into the wetlands.
This o ce would support approval of the pump and monitoring plan if these conditions are met.
If you( ould have any questions, please call.
c C Qv' -hcj,
Copy: WaRO
943 Washington Square Mall, Washington, North Carolina 27889 Telephone 252-946-6481 FAX 252-946-9215
An Equal Opportunity Affirmative Action Employer
Thrasher Mining Operation 1400 Elbow Road Farms Phone 757.647.3900
ape Rd. 23320 Fax 757.547.7304
Proposed Monitoring and
Pumping Schedules
Provided By.
Bissell Professional Group Inc.
4417 North Croatan Hwy.
Kitty Hawk, North Carolina 27949
Phone 252.261.3266
Fax 260
oV%i C,ARQ?
??'4 eAUP
a
MI I\ ??Nq
1 V .
Dewatering Summary
Dewatering of the mine area for excavation purposes will consist of a 1900 gpm,
80 HP, stationary Detroit 353 centrifugal pump with a 6" diameter discharge pipe.
This pipe will discharge into the 4100 lineal foot vegetative recharge ditch that is
located along the northern, western, and southern perimeter of the mine. Water
flow is conveyed from the recharge ditch into a .13 ac. settling basin located along
the southern boundary of the mine. Sediment from the groundwater is deposited
into the settling basin, flows through a recharge basin and into the adjoining
wetlands via a vegetative filter.
Pumping Schedule
Pumping of groundwater from the proposed mining operation will be limited to (5)
eight to ten hour days of continuous pumping followed by two consecutive days of
non-pumping. On average, groundwater pumping will consist of 3 '/z eight to ten
hour days of continuous pumping followed by 3 '/2 days of non-pumping. This
pumping cycle will operate for the duration of the mining permit, or until monitoring
indicates that the groundwater pumping demonstrates adverse impacts on the
adjacent wetland hydrology.
Monitoring
Monitoring wells are proposed along a transect, located between the mine and the
wetlands at the south boundary line. Three monitor wells will be placed approximately 70
feet on center, along a transect, adjacent to the recharge basin location. An additional well
will be placed up gradient, adjacent to the pump station location,(these locations can be
referenced on the monitor well plan). Water levels in the proposed wells will be monitored
as to provide data as to whether the groundwater pumping adversely effects the wetland
hydrology. Monitoring is of the proposed wells is to take place on a quarterly basis, or as
specified by the North Carolina Division of Water Quality.
Wetlands Impact
It is proposed that resulting impacts to the adjacent wetlands will be minimal, if any, with the
proposed dewatering. With the construction of the recharge ditch, this will enable the
surrounding groundwater to be "replenished", through infiltration, from the effects of
dewatering. Also, by adhering to state standards on temporary groundwater pumping and
monitoring, it is proposed, minimal impacts, if any, will result on the surrounding wetland
hydrology.
2
The Thrasher Mining Operation consists of a 93.87 acre mine for the excavation
and distribution of sand. The site is located off of Lary Comer Rd.IS.R. 1222)
within Moyock Township, Currituck County, North Carolina. The following
describes the operational summary of the proposed operation;
Operational Summary
1) The anticipated average daily traffic load count is 100 loads, with one truck
leaving approximately every six minutes. An occasional large job will increase the
traffic load to approximately 200 loads per day, with one truck leaving every three
minutes.
2) Excavation will consist of stripping overburden, digging dewatering and drainage
ditches will be performed by the use of an excavator. The excavator will either
stockpile material or use dump trucks to haul material to other locations within the
proposed mining area.
3) Loading of sand on delivery dump trucks will be done by a rubber tire front-end
loader and a excavator operating at the mining area entrance.
4) Trucks entering the mining area will be required to stop at the office trailer to
receive load tickets and instructions upon entering and existing the mining area.
Speed limits will posted along the access road to the mining area and will be
strictly enforced.
5) A dewatering pump will be provided and operated as described below.
6) A motor grader will be provided and operated to maintain the access road and
areas of the mining area as deemed necessary. a water truck will be provided to
maintain dust control along the access roadway and mining area. a sweeping
broom tractor will also be utilized to maintain any residual sand and dirt from the
access road entrance. These methods will insure the cleanliness of the adjoining,
(s.r. 1222) public roadway.
7) It is projected that a washing and screening masonry sand plant will be relocated
to within the mining area in two years. The operation of this plant will serve
washing, screening, and stockpiling of sand from within the mining area. a rubber
tired front end loader will be utilized to load the proposed plant and delivery
trucks.
8) It is projected that the number of employees operating at this facility will be 25.
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Washington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
4PRll 12.1
f-W QUAM?
DIVISION OF WATER QUALITY
January 28, 2000
TO: John Dorney
FROM: Robert Tankard AT
SUBJECT: Thrasher Mine
Moyock, NC
Curituck County
4?4-
s
Please find enclosed copies of the pump and monitoring plan for the above mine. The mine has
wetlands on site and the mine originally planned to mine to 50 feet. I believe they are now planning
to mine to a depth of 20 feet.
Copies of this plan have been distributed to WaRO Land Quality, Brad Shaver and Deborah Sawyer.
I will obtain their comments and forward Washington's recommendation to you as soon as possible.
If you should have any questions, please call.
? 5,60
Copy: WaRO
Ir
p w,
943 Washington Square Mall, Washington, North Carolina 27889 Telephone 252-946-6481 FAX 252-946-9215
An Equal Opportunity Affirmative Action Employer
Hiss[[[
TNe GoaB?l?
Hand Delivered Over-Nite Mail
TO: Robert Tankard
DENR
943 Washington Sq. Mall
Washington, N.C. 27889
PROJECT: Thrasher Mine
WE TRANSMIT:
( x) I Ierewith
FOR YOUR:
(x) approval
w comments
( ) use
( ) other
Copies Date
8 1/6/99
COMMENTS:
Copies To:
Faxed Mailed
DATE: 1/17/00
PROJECT NO.: 3684
i
III ?
.l JAN 1 9 2000
WASIiI '(-;1liiJ GfIAL WF U
Description
Monitoring Well Plan
Sincerely,
V
David M. Rya
Staff Engineer
4417 N. Croatan Hwy. ¦ P.O. Box 1068 ¦ Kitty Hawk, NC 27949
252-261-3266 ¦ Fax: 252-261-1760 ¦ E-mail: bpg-inc@interpath.com
t
Thrasher Mining OperatiOn Chesape Elbow Road Farms Phone 757.547
0 Elbo ow Rd. 23320 Fax 757.547.7804 .3900
e, VA
Proposed Monitoring and
Pumping Schedules
Provided By:
Bissell Professional Group Inc.
4417 North Croatan Hwy.
My Hawk, North Carolina 27949
Phone 252.261.3266
Fax 2W,24 60
«? ? o x
0 0
'l
Dewatering Summary
Dewatering of the mine area for excavation purposes will consist of a 1900 gpm,
80 HP, stationary Detroit 353 centrifugal pump with a 6" diameter discharge pipe.
This pipe will discharge into the 4100 lineal foot vegetative recharge ditch that is
located along the northern, western, and southern perimeter of the mine. Water
flow is conveyed from the recharge ditch into a .13 ac. settling basin located along
the southern boundary of the mine. Sediment from the groundwater is deposited
into the settling basin, flows through a recharge basin and into the adjoining
wetlands via a vegetative filter.
Pumping Schedule
Pumping of groundwater from the proposed mining operation will be limited to (5)
eight to ten hour days of continuous pumping followed by two consecutive days of
non-pumping. On average, groundwater pumping will consist of 3 '/z eight to ten
hour days of continuous pumping followed by 3 '/Z days of non-pumping. This
pumping cycle will operate for the duration of the mining permit, or until monitoring
indicates that the groundwater pumping demonstrates adverse impacts on the
adjacent wetland hydrology.
Monitoring
Monitoring wells are proposed along a transect, located between the mine and the
wetlands at the south boundary line. Three monitor wells will be placed approximately 70
feet on center, along a transect, adjacent to the recharge basin location. An additional well
will be placed up gradient, adjacent to the pump station location,(these locations can be
referenced on the monitor well plan). Water levels in the proposed wells will be monitored
as to provide data as to whether the groundwater pumping adversely effects the wetland
hydrology. Monitoring is of the proposed wells is to take place on a quarterly basis, or as
specified by the North Carolina Division of Water Quality.
Wetlands Impact
It is proposed that resulting impacts to the adjacent wetlands will be minimal, if any, with the
proposed dewatering. With the construction of the recharge ditch, this will enable the
surrounding groundwater to be "replenished", through infiltration, from the effects of
dewatering. Also, by adhering to state standards on temporary groundwater pumping and
monitoring, it is proposed, minimal impacts, if any, will result on the surrounding wetland
hydrology.
2
The Thrasher Mining Operation consists of a 93.87 acre mine for the excavation
and distribution of sand. The site is located off of Lary Corner Rd.(S.R. 1222)
within Moyock Township, Currituck County, North Carolina. The following
describes the operational summary of the proposed operation;
Operational Summary
1) The anticipated average daily traffic load count is 100 loads, with one truck
leaving approximately every six minutes. An occasional large job will increase the
traffic load to approximately 200 loads per day, with one truck leaving every three
minutes.
2) Excavation will consist of stripping overburden, digging dewatering and drainage
ditches will be performed by the use of an excavator. The excavator will either
stockpile material or use dump trucks to haul material to other locations within the
proposed mining area.
3) Loading of sand on delivery dump trucks will be done by a rubber fire front-end
loader and a excavator operating at the mining area entrance.
4) Trucks entering the mining area will be required to stop at the office trailer to
receive load tickets and instructions upon entering and existing the mining area.
Speed limits will posted along the access road to the mining area and will be
strictly enforced.
5) A dewatering pump will be provided and operated as described below.
6) A motor grader will be provided and operated to maintain the access road and
areas of the mining area as deemed necessary. a water truck will be provided to
maintain dust control along the access roadway and mining area. a sweeping
broom tractor will also be utilized to maintain any residual sand and dirt from the
access road entrance. These methods will insure the cleanliness of the adjoining,
(s.r. 1222) public roadway.
7) It is projected that a washing and screening masonry sand plant will be relocated
to within the mining area in two years. The operation of this plant will serve
washing, screening, and stockpiling of sand from within the mining area. a rubber
tired front end loader will be utilized to load the proposed plant and delivery
trucks.
8) It is projected that the number of employees operating at this facility will be 25.
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Washington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
STATE ci A .
'PE'RIL 12.??`??
'?fS WA 'j
DIVISION OF WATER QUALITY
January 28, 2000
TO: John Dorney
FROM: Robert Tankard AT
SUBJECT: Thrasher Mine
Moyock, NC
Curituck County
Please find enclosed copies of the pump and monitoring plan for the above mine. The mine has
wetlands on site and the mine originally planned to mine to 50 feet. I believe they are now planning
to mine to a depth of 20 feet.
Copies of this plan have been distributed to WaRO Land Quality, Brad Shaver and Deborah Sawyer.
I will obtain their comments and forward Washington's recommendation to you as soon as possible.
If you should have any questions, please call.
Copy: WaRO
IVY, SEC110Pa
943 Washington Square Mall, Washington, North Carolina 27889 Telephone 252-946-6481 FAX 252-946-9215
An Equal Opportunity Affirmative Action Employer
Elbow Road Farms Phone 757.547.3900
1400 Elbow Rd.
Thrasher Mining Operation C
es peak e, VA 23320 Fax 757.447.7384
Proposed Monitoring and
Pumping Schedules
W-1 5 M
"f ANDS GROUP
?I vv?. dal iial ITY HOMO
r
Provided By: JAN 1 9 2000
Bissell Professional Group Inc. ?. -
4417 North Croatan Hwy. c
Kitty Hawk, North Carolina 27949 ?
Phone 252.261.3266
Fax 2W,261, ??760
c
I 4 n
?N`L7' n
i_?.
M'I l ?
A f ; v
:.,?';a+V
Dewatering Summary
Dewatering of the mine area for excavation purposes will consist of a 1900 gpm,
80 HP, stationary Detroit 353 centrifugal pump with a 6" diameter discharge pipe.
This pipe will discharge into the 4100 lineal foot vegetative recharge ditch that is
located along the northern, western, and southern perimeter of the mine. Water
flow is conveyed from the recharge ditch into a. 13 ac. settling basin located along
the southern boundary of the mine. Sediment from the groundwater is deposited
into the settling basin, flows through a recharge basin and into the adjoining
wetlands via a vegetative filter.
Pumping Schedule
Pumping of groundwater from the proposed mining operation will be limited to (5)
eight to ten hour days of continuous pumping followed by two consecutive days of
non-pumping. On average, groundwater pumping will consist of 3 '/z eight to ten
hour days of continuous pumping followed by 3 '/2 days of non-pumping. This
pumping cycle will operate for the duration of the mining permit, or until monitoring
indicates that the groundwater pumping demonstrates adverse impacts on the
adjacent wetland hydrology.
Monitoring
Monitoring wells are proposed along a transect, located between the mine and the
wetlands at the south boundary line. Three monitor wells will be placed approximately 70
feet on center, along a transect, adjacent to the recharge basin location. An additional well
will be placed up gradient, adjacent to the pump station location,(these locations can be
referenced on the monitor well plan). Water levels in the proposed wells will be monitored
as to provide data as to whether the groundwater pumping adversely effects the wetland
hydrology. Monitoring is of the proposed wells is to take place on a quarterly basis, or as
specified by the North Carolina Division of Water Quality.
Wetlands Impact
It is proposed that resulting impacts to the adjacent wetlands will be minimal, if any, with the
proposed dewatering. With the construction of the recharge ditch, this will enable the
surrounding groundwater to be "replenished", through infiltration, from the effects of
dewatering. Also, by adhering to state standards on temporary groundwater pumping and
monitoring, it is proposed, minimal impacts, if any, will result on the surrounding wetland
hydrology.
The Thrasher Mining Operation consists of a 93.87 acre mine for the excavation
and distribution of sand. The site is located off of Lary Comer Rd.(S.R. 1222)
within Moyock Township, Currituck County, North Carolina. The following
describes the operational summary of the proposed operation;
Operational Summary
1) The anticipated average daily traffic load count is 100 loads, with one truck
leaving approximately every six minutes. An occasional large job will increase the
traffic load to approximately 200 loads per day, with one truck leaving every three
minutes.
2) Excavation will consist of stripping overburden, digging dewatering and drainage
ditches will be performed by the use of an excavator. The excavator will either
stockpile material or use dump trucks to haul material to other locations within the
proposed mining area.
3) Loading of sand on delivery dump trucks will be done by a rubber tire front-end
loader and a excavator operating at the mining area entrance.
4) Trucks entering the mining area will be required to stop at the office trailer to
receive load tickets and instructions upon entering and existing the mining area.
Speed limits will posted along the access road to the mining area and will be
strictly enforced.
5) A dewatering pump will be provided and operated as described below.
6) A motor grader will be provided and operated to maintain the access road and
areas of the mining area as deemed necessary. a water truck will be provided to
maintain dust control along the access roadway and mining area. a sweeping
broom tractor will also be utilized to maintain any residual sand and dirt from the
access road entrance. These methods will insure the cleanliness of the adjoining,
(s.r. 1222) public roadway.
7) It is projected that a washing and screening masonry sand plant will be relocated
to within the mining area in two years. The operation of this plant will serve
washing, screening, and stockpiling of sand from within the mining area. a rubber
tired front end loader will be utilized to load the proposed plant and delivery
trucks.
8) It is projected that the number of employees operating at this facility will be 25.