20081555 Ver 2_More Info Received_20110505

SEGO
Southern Environmental Group, Inc.
5315 South College Road, Suite E
Wilmington, North Carolina 28412
910.452.2711 (office) • 910.452.2899 (fax)
Date: 3 May 2011
To: Mr. Ian McMillan
Of: NCDWQ Raleigh
Attached you will find:*
? Proposal ? Sketch(es)
? JD Package ? Report(s)
©?- ?SSS v 40?-
SM Project #: 06-010.01
Client Name: Shelter Creek Quarry
Transmittal Letter
00
MA*, ?? l i311 I
? Permit ? Wetland Map ? Photo(s)
® Plans ? Information Request ? Other
Copies Dated Description
1 5/2/2011 Shelter Creek Quarry 2011 Operation and Monitoring Plan
These are being delivered:
If noted items are NOT attached, please contact our office.
? For your Review/Comment ® For your Records ? Returned for Correction(s)
? Corrected and Returned ? For your Signature ? As Requested
? Other:
By: ? Hand Delivery ? Fed-Ex ? UPS ER"kegular Mail ? Other
Notes:
Ian, Linda Willis was supplied a copy of the plan on 3 May 2011 for her review and processing.
Signature and (Typed) Name: na A. theran
Date: ay 2011
In Accordance with the National Pollutant Discharge Elimination System
General Permit No. NCG020000
Shelter Creek Quarry
Operation & Monitoring Plan
MAY 052011
Prepared for:
Shelter Creek Capital, LLC
12121 Hwy 53 East
Maple Hill, NC
Prepared By:
Southern Environmental Group, Inc.
5315 South College Road, Suite E
Wilmington, NC 28412
2 May 2011
jhelter Creek Quarry O&M Plan
Table of Contents
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Section Title Pa
1. Project History ................................................................................................ 3
II Existing Site Conditions .................................................................................... 3
III. Proposed Construction Projects ................................................................................. 4
A. Relocate Existing Berms .......................................................................... 4
B. Closed Circuit Pond ................................................................................ 4
C. New Maintenance Building ....................................................................... 4
D. Extend Existing Closed Circuit Ditch ........................................................... 4
E. New Lab Structure ................................................................................. 4
IV. Drainage Facilities ........................................................................................... 4
V. Pumping Frequencies ....................................................................................... 5
VI. Fuel Storage ............................................................................................... 5
VII. Water Canon Usage ......................................................................................... 5
VIII. Discharge Monitoring Reports ........................................................................... 5
IX. Hydrological Monitoring Report ........................................................................ 5
X. Conclusion ......................................................................................................... 5
Appendix
Assignment Description Page
A Shelter Creek Quarry 10 Year Minable Area Map ......................................................... i
B Original Operation and Monitoring Plan Narrative ......................................................... ii
C Closed Circuit Pond Diagram ................................................................................. iii
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jhelter Creek Quarry O&M Plan
1. Project History
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Shelter Creek Quarry (SCQ) was started by Mr. Steve Holland (Shelter Creek Quarry, LLC), with the
vision of mining limestone, sand and marl out an approximately 398.0 acre parcel of land adjacent to
Shelter Creek, in Pender County, North Carolina. Initially, Mining Permit No. 41-45 was issued to Shelter
Creek Quarry that approved land disturbing activity within 65.27 acres. This permit is valid until 26
February 2017. In conjunction with the mining permit, SCQ applied for and secured the following
Department of Environment and Natural Resources and Department of the Army authorizations:
Regulatory Agency Permit Type Permit No. Issuance Date Expiration Date
NC DWQ 401 General Certification 3402 7/26/06 3/18/07
USACE NWP 39 6/10/06 3/18/07
NC DWQ NPDES NCG020000 020679 2/28/07 Concurrent
NC DAQ Small Class Emissions 09551R00 12/12/08 12/13/13
NC DLR Mining Permit 71-45 2/26/07 2/26/17
Table 1 Environmental permits issued previously
On 17 January 2011, SCQ provided notice to the Division of Land Recourses notification that the project
site has been sold to Shelter Creek Capital, LLC. In accordance with the authorizations listed above, SCQ
is close to reaching the originally permitted land disturbance limits and have begun the process of
modifying and/or renewing the original permits to include land disturbance projected to take place within
the next 10 years (see Appendix A - Shelter Creek Quarry 10 Year Minable Area Map). The following
permits have been secured or are in the process of being secured for the purpose of expanding the existing
mine site:
Regulatory Agency Permit Type Permit No. Issuance Date Expiration Date
NC DWQ 401 Individual Certification 3849 2/24/11 Concurrent
USACE Individual Permit 2008-01720 3/10/11 3/18/61

NC DAQ
Small Class Emissions
09551R00 Transfer Notification

submitted 3/29/11
12/13/13
DCM CAMA Consistency CDI 1-010 2/25/11 Concurrent
NC DLR Mining Permit 71-45 In Progress
fable 2 Environmental permits status as of the date of this report
Due to the increase in mining land disturbance and pursuant to North Carolina General Statute 143-215.1
and Memorandum of Agreement between North Carolina and the US Environmental Protection Agency,
dated 9 May 1994 (or as subsequently amended), SCQ is required to update the NPDES GC020000
permit, as well as the Operation and Monitoring (O&M) Plan (see Appendix B) to cover the newly
proposed mining area and any other land disturbing activities and/or changes to the mining operations.
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`jhelter Creek Quarry O&M Plan
II. Existing Site Conditions
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At this time, SCQ has mined approximately 15.95 acres and to a depth of -45 feet mean sea level (MSL).
Existing on the mine site are office quarters and scales, old pole barn, fuel storage areas, crusher, along
with large stockpiles of excavated material (limestone, sand, and marl), two closed circuit ponds
(horseshoe pond and level spreader lake), a linear, closed circuit ditch, two 10' high earthen berms, a basin
pump station and water level spreader (see Appendix A - Shelter Creek Quarry 10 Year Minable Area
Map for details). SCQ installed and maintained 21 shallow, groundwater monitoring wells (located within
and on adjacent lands, until heavy rains destroyed many of them. These wells are no longer in place. SCQ
submitted a hydrological monitoring plan to the DWQ Wilmington Regional Office and is working with
DWQ staff to finalize the replacement monitoring well locations.
III. Proposed Construction Projects
A. Relocate Existing Berms
The existing 10' berms that run along the northern property boundary were placed in such a way
as to avoid impacts to USACE jurisdictional and DWQ isolated wetlands (an undulated line).
Upon securing the appropriate wetland impact authorizations, SCQ began to straighten the line of
these berms (see Appendix A). Silt fence is in place along the northern toe of the berms, and will
remain until the slopes of the berms are stable, to ensure that no sediment leaves the site during or
after the construction process. In addition, the berms have been hydro-seeded and planted with
long leaf pine.
B. New Closed Circuit Pond
The surface area of the pond is expected to be approximately 15,000 square feet and will be
situated northwest of the horseshoe pond (see Appendix A). The water held in this pond will be
used for washing stone. Runoff from the washing area (Diester) will drain back into the pond,
where fines will settle out and water can be used over and over again, for the same purpose (see
Appendix C - Closed Circuit Pond Diagram). If more water (make-up water) is needed in the
pond, a gate valve that controls the flow of water in the main sump line can direct water into the
closed circuit pond.
C. New Maintenance Building
In the original O&M plan a maintenance building was proposed. However, this structure was
never built. With this modification, SCQ is proposing to construct a 5,000 square foot building
that will be located near the existing old barn (see Appendix A).
D. Extend Existing Closed Circuit Ditch
Upon securing the appropriate wetland impact authorizations, SCQ began to extend the existing,
closed circuited ditch that runs along the western property boundary. This was not completed
during the initial excavation of the feature, as wetland impacts had not been approved. Therefore,
excavation of some sections of the ditch were omitted to avoid unauthorized wetland impacts.
Weir structures will be incorporated to control water levels within the feature.
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Shelter Creek Quarry O&M Plan Sr-G i
E. New Lab and Associated Maintenance Covered Shed
The structure is proposed to be 2,400 square foot. Of this square footage, 300 square feet will be
dedicated to the new lab. This building will be situated just east of the horseshoe pond (see
Appendix A).
IV. Drainage Facilities
There are no changes to the drainage facilities. Aside from the isolated wetland ponds, which were
never installed, the measures and systems, as described in the original O&M Plan (see Appendix B
- Original O&M Narrative), submitted by Mr. Stephen Dorenda, are in place and operating as
intended.
It is the intention of the SCQ to continue mining without allowing the existing pit to fill up, before
starting another. It is not anticipated that the contiguous mining will have an effect on water levels
within the western property boundary ditch, as the feature can be kept hydrated by pumping water
into it at any time and blue gum clay and marl, underlying the ditch, act as a confining layer that
prohibits the ditch from draining.
V. Discharge Monitoring Plan
The increase in the proposed minable area limits will have an insignificant effect on the pumping
frequency for the SCQ. At this time the, SCQ is pumping, on average, approximately 750,000
gallons of water daily. This level may increase slightly, with the expansion of the minable area,
but will not exceed the previously approved 2,000,000 gallons of water per day. The Permittee has
been testing the chemistry of the water within the horseshoe lake and at the level spreader, as
required by the terms and conditions of NCG020000. To date, no abnormal readings have been
recorded, thus remediation has not been necessary.
A field visit, performed by SEGi, confirmed that water being discharged from the level spreader
into the adjacent hardwood bottomland forest is infiltrating into the soil before reaching Holly
Shelter Creek (see Appendix D - Site Photos of the 119 Acre Wetland). It does not appear that the
discharge of treated stormwater into the 119 acre wetland feature has had an effect on the wetland
community or on the integrity of Holly Shelter Creek.
VI. Fuel Storage
The fuel storage facility was installed per the original mining permit and is operating as intended.
To date, records indicate there have been no "significant spills".
VII. Reporting Requirements
In accordance with the terms and conditions of Part III, Sections B and C of the NCG020000,
discharge monitoring will be conducted and results furnished to the NC DENR Division of Water
`jhelter Creek Quarry O&M Plan Sr-Gi
E. New Lab and Associated Maintenance Covered Shed
The structure is proposed to be 2,400 square foot. Of this square footage, 300 square feet will be
dedicated to the new lab. This building will be situated just east of the horseshoe pond (see
Appendix A).
IV. Drainage Facilities
There are no changes to the drainage facilities. Aside from the isolated wetland ponds, which were
never installed, the measures and systems, as described in the original O&M Plan (see Appendix B
- Original O&M Narrative), submitted by Mr. Stephen Dorenda, are in place and operating as
intended.
It is the intention of the SCQ to continue mining without allowing the existing pit to fill up, before
starting another. It is not anticipated that the contiguous mining will have an effect on water levels
within the western property boundary ditch, as the feature can be kept hydrated by pumping water
into it at any time and blue gum clay and marl, underlying the ditch, act as a confining layer that
prohibits the ditch from draining.
V. Discharge Monitoring Plan
The increase in the proposed minable area limits will have an insignificant effect on the pumping
frequency for the SCQ. At this time the, SCQ is pumping, on average, approximately 750,000
gallons of water daily. This level may increase slightly, with the expansion of the minable area,
but will not exceed the previously approved 2,000,000 gallons of water per day. The Permittee has
been testing the chemistry of the water within the horseshoe lake and at the level spreader, as
required by the terms and conditions of NCG020000. To date, no abnormal readings have been
recorded, thus remediation has not been necessary.
A field visit, performed by SEGi, confirmed that water being discharged from the level spreader
into the adjacent hardwood bottomland forest is infiltrating into the soil before reaching Holly
Shelter Creek. It does not appear that the discharge of treated stormwater into the 119 acre wetland
feature has had an effect on the wetland community or on the integrity of Holly Shelter Creek.
VI. Fuel Storage
The fuel storage facility was installed per the original mining permit and is operating as intended.
To date, records indicate there have been no "significant spills".
VII. Reporting Requirements
In accordance with the terms and conditions of Part III, Sections B and C of the NCG020000,
discharge monitoring will be conducted and results furnished to the NC DENR Division of Water
`jhelter Creek Quarry O&M Plan
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Quality Section, Wilmington Regional Office no later than 30 days form the end of each quarterly
monitoring period, along with a duplicate copy to the Central Office, Division of Water Quality.
Reports will be available at the SCQ Main Office for a period of five years from the date of the
report.
VIII. Water Cannon Usage
These mechanisms were determined to not be required and thus were never installed.
IX. Hydrologic Monitoring Plan
SEGi is working with DWQ staff to update the hydrological monitoring plan for the project. On
14 March 2011, SEGi submitted the Hydrological Monitoring Plan, part of the O&M Plan, to Mr.
Rick Shiver, DWQ Regional Supervisor, for his review and comment. On 30 April 2011, SEGi
and the Permittee met with Mr. Shiver and other DENR representatives to discuss concerns the
DWQ had with the Hydrological Monitoring Plan. At this meeting it was suggested that a few of
the monitoring wells be relocated and that the number of wells could be reduced. On 8 April 2011,
SEGi submitted the revised monitoring well location map and supplemental data to Mr. Shiver.
SEGi received a request for additional information (RFAI) from the DWQ, with regard to the new
proposed well location and supplemental information on 15 April 2011, to which SEGi submitted
their response to the RFAI on 2 May 2011, for their review and comments.
X. Conclusion
In conclusion, based upon the information found within and attached to this report, SEGi and the
Permittee feel the project has continued to be in compliance with all the conditions of the
previously approved Operation and Monitoring plan and hope that the modifications to the plan,
once reviewed, will be approved.
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Appendix A
Shelter Creek Quarry 10 Year Minable Area Map
Attachment B
Original Operation and Monitoring Plan Narrative
In Accordance with General Permit No. NCG 020000
Operation and Monitoring Plan
Shelter Creek Quarry, LLC.
8315 Highway 53 East
Burgaw, Pender County, NC
Prepared by:
Stephen Dorenda
VP Operations
Shelter Creek Quarry, LLC
1.0 Background
Once the State Mining Permit and the NPDES Permit have been issued to Shelter Creek
Quarry, LLC, several projects will have to be completed before any mining activity commences.
All of these projects are shown on the Phase 1A-72.5 acre map entitled NPDES MAP and an
additional map titled NPDES Supplemental Wetland Map (La). First and foremost is the
construction of the Speed-Up and Slow-Down lanes at the entrance to the mine site.
2.0 Project List Prior to Minim
3.0 Speed-Up and Slow-Down Lane Construction
All of the necessary plans have been submitted to and approved by the NC State DOT for
construction. Bids have been received and are ready to be awarded. Once the construction
begins, additional material will be added to the main entrance road from the speed-up and slow-
down area to the entire length of the main entrance road and finally terminating at the level
spreader lake. The road will be raised from 19.7 MSL to approximately 23.0 MSL. This
elevation will prevail the entire length of the main road and will be widened and asphalted to the
office and scale area shown on the enclosed map. The road will be ditched on either side and all
storm water from the east side of the road will be sent by pipe to the west side of the road, and
will ultimately be sent to the main sump area in the quarry as depicted on the enclosed map.
This same road will circle the level spreader lake and will continue west towards the
maintenance building at the same 23.0 MSL height. This height will be maintained for the entire
35.0 + acre mine site to prevent storm water from ever entering or leaving the actual mining area.
The berm depicted on the enclosed map will also continue down the property line to intercept the
same 23.0 MSL elevation at the maintenance building. This elevation was chosen because in the
recent 500 year flood, water never rose above the maintenance building elevation!
4.0 Horseshoe Lake Remodeling
The horseshoe lake will be deepened to an average depth of 20' and the walls will be
sloped at a 3-1 grade and grassed. It will be clear of all trees and brush and will have a road
circling it at a 23.0 MSL elevation. A floating pump station will be built and located in the
southwest corner of the horseshoe. This pump will transfer main pit sump water to the level
spreader lake. This lake can store 300,000 gallons of water and will be capable of withstanding
flood waters that occurred during the recent 500 year flood. The lake will cover approximately
1.2 acres and the water elevation will be held at a nominal 14' elevation.
5.0 Construction of the Level Spreader Lake
The level spreader lake will be built simultaneously with the two previously mentioned
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projects. The level spreader lake will be quite unique for several reasons. It will cover
approximately 4.0 acres with 2.5 acres of water in it. It will hold approximately 12,000,000
gallons of water and can withstand a 100 year, 24 hour storm (10" rain in 24 hours) very easily.
It is unique because it will have a 200' long discharge manifold that can be adjusted for rate of
flow by closing or opening three separate gate valves. These gate valves control the amount of
water to be discharged by the manifold. Another unique feature is that it will be built directly on
top of the crustaceous limestone, which will allow some of the contained water to close-circuit to
the main pump station from which it came. Lastly, the actual discharge will occur on the mining
property prior to it's migration to the wetland. All of the design data and other necessary
information have been included with this plan. (Enclosure 1) This design meets or exceeds the
guidelines established by Dr. Van Der Wiele of N.C. Division of Water Quality
6.0 Stripping of Overburden
As soon as both of the lakes are completed, a stripping program to remove the overburden
will commence. The initial stripping will occur to the west of the main entrance road, into the
quarry and will be approximately 400'x 750' and will remove 200,000 cubic yards of
overburden. The map shows how storm water will be trapped and sent to the main sump area by
both ditching and grading as depicted on the map.
6.1.a Overburden Uses:
6.1.a.1 It will be used to build all of the berms shown on the enclosed map as well as
protection berms for haul roads as demanded by MSHA Rules.
6.1.a.2 It will be used to widen roads and heighten the main road into the quarry as well
as to build new roads around the horseshoe lake, level spreader lake and a berm
from the level spreader lake to the maintenance building.
6.1.a.3 Excess overburden will be stored on the east side of the main entrance road shown
on the enclosed map. Although this material will ultimately be placed in the
bottom of the mined-out pit area, it will be temporarily stored and encapsulated by
a berm and silt fencing as shown on the map.
6.1.a.4 As the overburden is being removed, collected storm water will be sent from a
submersible pump and plastic pipe to the horseshoe lake. This pump will be
located in the designated sinking cut area to be drilled and blasted where the
permanent pump station will be located. All overburden in this area must be
removed before drilling and blasting commences. As soon as the fixed sump area
is established by removal of the rock that was blasted, an immediate drilling and
blasting program will develop the two benches shown in the map legend. At this
time, a small portable crusher will be used to crush rock for all of the roads to be
heightened and widened. This crusher will only make one size of finished product
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(base material) and does not use water for cleaning of the rock.
7.0 Rock Crushing Plant Construction
The portable rock crushing plant and portable generating plant will begin to be set-up in
the area shown on the map, slightly southwest of the pump station. The plant will have all
equipment at 23.0 MSL or higher to prevent flood damage. It is all portable equipment and can
be moved easily, if so desired. Although permanent electricity will be provided by Four County
Co-Op, a back-up generator will be installed and wired series-in-parallel since Shelter Creek
Quarry will be buying interruptible service. The entire plant will be built by an outside
contractor and delivered pre-built to the mine site.
8.0 Ongoing Construction Projects
8.a.1 Chainlink fence construction on berms will begin as soon as berms are finished.
8.a.2 Berms will be sowed and planted with native grasses.
8.a.3 Wash water pond will be constructed near crushing plant. It will be a totally
close-circuited pond.
8.a.4 Construct office building and scales on the main entrance road.
8.a.5 Begin construction of a 30'x 75' addition the maintenance building on the
southern end of the current building.
8.a.6 Construct a 4,115 foot closed ended ditch down the west side of the quarry
property as depicted on the attached NPDES Supplemental Wetland Map (La)
This ditch will be kept filled with water provided by two ponds shown on the
same map, and will not be allowed to become dry. This ditch and the parallel
ditches on Highway 53 will provide a hydraulic barrier to N.C. State Gamelands.
8.a.7 Asphalt the main entrance roads and install automatic gates to the fencing along
the main entrance road.
8.a.8 Continue to berm all isolated wetlands as stripping continues. Berms will be
sowed and planted with native grasses and silt fencing as necessary.
8.a.9 Build ponds for water cannon use in areas shown on the map. Outside walls of
ponds will be sowed and planted with native grasses and silt fencing will be used
as necessary Construction data can be found in the legend section of enclosures
(8) and (9).
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9_0 Water Monitoring and Test Wells
Since May, 2005, there has been an ongoing monitoring of six (6) wells that were placed
in the main wetland area of the mine. Three (3) of the wells are shallow (15 feet deep) and the
three (3) other wells are deep (80 feet deep).
Initially, test results were conducted on a monthly basis since there was no mining
activity on the property. With the recommendation to increase monitoring on a weekly basis
from Ms. Linda Willis, I began to collect water heights from these and other wells from August
08, 2006 to the present time. See Enclosure (7), Monitoring Well Data for 13 wells. Well
locations are shown on the two (2) enclosed maps. Enclosure (8) and (9).
The results to date from the monitoring of these thirteen (13) wells have supported the
initial findings of the three (3) pump down wells used in our cone of depletion studies. That is to
say that the data collected to date shows that the hydrology of the adjacent wetlands was not
significantly influenced from dewatering activity elsewhere on the mining site.
It has been my experience in mining coastal limestone that the hydrology of the large
wetlands are more likely influenced from lateral groundwater flow in the upper surficial aquifer
towards the mine wall as the mine advances.
For these aforementioned reasons, a level spreader pond, ditching, and pond construction
to provide water for water cannon use have all been incorporated in this mining plan to prevent
loss of water in the overburden areas of the wetlands.
10.0 Drainage Facilities
Any storm water that goes to the pit area will be pumped from a central pumping station
as depicted on the NPDES Map. All other ditches that are on the property will still be used as
well. No new open ended ditches are expected to be needed. The ditches and sump area deliver
natural and storm water to the man-made lake for discharge. It will be discharged evenly into the
wetlands from this lake. No sump pump water will be directly pumped off the mining site. The
submitted cross sections show that the sump settling pump basin will be approximately 100 ft. x
300 ft., and it will have the deepest mined area in the quarry at - 58 ft. MSL. The actual water
level will automatically be controlled by mercury switches, and will only pump water down to a
nominal - 45 ft. MSL. This is necessary since non-turbid water is desired for pumping. Also,
this will be the first chance that suspended solids can be removed,before any pumping sends
water to the first settling pond. The sump also provides a huge retention area in case of
inclement conditions. All storm water and ditch water is sent to the main sump area by grading
or ditches during extended mining operations. See the flow charge arrows on the NPDES Map.
Enclosure (8).
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11.0 Pumping Frequency
Initially, quantities of water will be smaller at first due to the size of the open pit. The
quantities of water will naturally become larger as the mine expands which causes the aquifer to
expand. At first, the aquifer will give up more gallons of water per hour since this water
represents storage water found in the aquifer. However, as the aquifer grows, the water will have
to migrate further in order to get to the pump station, and the flow will tend to stabilize to a lesser
flow rate.
Pumping periods will be controlled at the pump station by mercury switches and a
pumping log will be maintained on a daily basis. Although the float-mounted pump can deliver
1400 gallons per minute, it is estimated that the pump station will not operate but a short period
every hour during operating hours. After operating hours, the pump will remain idle. Although
the pump can send up to 2 million gallons of water per day to the level spreader, it is not going to
pump more than 250,000 - 500,000 gallons per day for the first two to three years. This is simply
because of the size of the aquifer in the retention ponds and the need to refill all of the water and
the 4100' ditch. This mining plan is only for 72.5 acres, and it will be mined in two phases of 36
acres each. When the first 36 acres is totally mined, water and wetlands should no longer be an
issues since the 36 acres will be allowed to fill with water. It will take approximately 6-7 years
to mine the 36 acre tract.
Since quantities of water to be pumped are all hypothetical and are attempted to be
proven with theoretical formulas, I have concluded that our initial pumping will produce 250,000
- 500,000 gallons of water per day once the sinking cut has been made. Naturally, as the mine
area increases in size, so too will the aquifer increase in size. Thus, Mr. Walton's testing shows
at the end of a 6-7 year period, we will have 1,000,000 to 2,000,000 gallons of water to be
pumped daily. This has been concurred by the N.C. State Hydrologist also. See enclosure (10).
The Cone of Depletion has also been agreed upon to be 6200'. (Enclosure 9a)?
A log book listing all wells will be kept in the VP Operation's office with all collected
and reported data from weekly inspections. Site checks for sink holes or any other abnormalities
at the mine site will be done daily and all findings will be recorded with time and date of such
findings.
12.0 Isolated Wetland Buffer
Maps that have been submitted and the map currently submitted show a minimum 50'
buffer away from all wetlands to the edge of the mine. The wetlands are not in the buffer and all
isolated wetlands will be monitored by monitoring wells located in each wetland's boundary.
Provisions have been delineated to keep these areas wet. See #7 of this document.
Also, there will be a 2/1 slope to the rock in the quarry from the outline footprint of the
isolated wetland. Thus, for a 15 foot of overburden in an isolated wetland, the actual mining
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distance from the wetland would be 80 feet and not 50 feet.
13.0 Isolated Wetland Ponds
The ponds holding water for the isolated wetlands will have float mounted pumps with
manifolds capable of running (3) water cannons at one time. The water cannons can spray 75
gallons/minute or 4,500 gallons/hour.
Based on the previous example given, an average isolated wetland would need 12,670
gallons of water pumped on non-rainy days. With a water cannon delivering 4,500 gallons per
hour, it would take 2.82 hours to spray 12,670 gallons onto an average wetland.
14.0 Maintenance Area and Fuel Storage
The submitted map shows a maintenance building slightly NW of the horseshoe wetland
adjacent to the level spreader pond. An additional 30'x 75' or 2,250 ft.' building addition will be
added to the southern end of the current building. This area will be with a covered roof and
concrete floor. General preventative maintenance will be conducted in this area by an outside
contractor who will provide grease and oil on his service truck. The floor area will consist of a 2
block high concrete walled area on top of 6" of concrete. The open end will have a 7" silent
policeman made of concrete which will be attached to the concrete floor. This floor area and
blocks, along with the silent policeman provides 42 yds.' of contained concrete storage for spills.
30 x 75 x .5' _ 27 = 42 yds' and 423 x 201.974 = 8,483 gallons of liquid storage. The floor will
have (2) drains located at 25' intervals in the concrete floor and connected to a 4'x 6' sump area
outside of the building by PVC pipe. The actual sump area will be covered with a removable
roof to prevent from inclement weather. Bags of "Oil Dri" will be provided on both sides of the
maintenance area and would be sprinkled over wet areas. The absorbed material would be swept
into a pile and then transferred to a 55 gallon barrel to be sent to an environmentally appropriate
dump site.
NOTE: 500 year flood did not reach the maintenance building floor in September, 1999. As far
as bulk storage of diesel fuel, a 10,000 gallon steel tank will be located along the SE corner of the
maintenance building with a built-in secondary containment tank. All maintenance will be
provided by an outside contractor where the mining equipment is purchased. This maintenance
will be conducted by the vendor's employees with the vendor's maintenance truck.
15.0 Discharge Monitoring
Discharge monitoring and reporting will be performed as specified in Table 1. If the
effluent limitations are greater than specified in Table 2, the monitoring frequency will be
modified to monthly monitoring of the effluents.
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16.0 Monitoring Reports
Discharge monitoring results in accordance with the terms of this permit, NCG020000,
shall be submitted no later than 30 days from the end of the monitoring period. Duplicate signed
copies of all reports required shall be submitted to the NC DENR Division of Water Quality,
Water Quality Section, ATTENTION: Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.
Shelter Creek Mining will report orally any noncompliance within 24 hours after Shelter
Creek Mining becomes aware of the noncompliance.
Table 1. Monitoring Requirements for Mine Dewateri

' Discharge CharactedstUcs ., Unrts Measun'l rent
r'e9uency Sample

_Type

, - pie
_

Location
w
H .
P S. U. Quarters Grab E
Settleabl
S
lid
e
o
s
Total S
d
d mlA Quarter! Grab E
uspen
e
Solids
Turbidit m Quarters Grab E
y
Total Fl NTU Quarters Grab E or U,D
ow MG Quarterly - E
Table 2. Effluent Limitations for Process Wactow2farmnA ¦ ...e ?,........,.?

- Discharge Charaeberrs "
-
Discharge Li

Settleable Solids Moftly AV a ,.
0.1 mUl
Total Suspended Solids Industrial Sand Mining) 25ffKO
H Ran e _
Turbidity Freshwater non-trout streams _
Turbid' Non-trout lakes and saltwaters
Turbidity (Trout Waters) _
mitations
Daily Ma)amum .
0.2 mVl
6.0-9.0
50 NTU
25 NTU
10 NTU
Page 8
17.0 Water Cannon Use in Isolated Wetlands
As far as keeping the isolated wetlands wet with water cannons, the following formula shows
how much water in necessary to equal the normal precipitation based on the thirty year average
rainfall amounts:
inches of rain x sq. ft. x 7.48 = (x) gallons
Using 116.9" of rain/year (30 year average) for this area, I can calculate the number of gallons
per no rain days that would have to have water sprayed by the water cannons to the isolated
wetlands. Average size of isolated wetland = 1.437 acres 1.437 acres = 62,595 ft.'
Example:
116.9 x 62,595.72 ft.2 = 609,786 ft.'
12
609,786 ft.' x 7.48 gallons = 4,561,202.4 gallons/year
4,561,202 gallons/year = 380,100 gallons/month
12 months
380,100 gallons/month - 12,670 gallons/day per avg. wetland
30 days/month
12,670 gallons/day x 17 isolated wetlands = 215,390 gallons/day
19 dry days/month x 215,390 gallons/day = 4,092, 410/month
Page 9
Attachment C
Closed Circuit Pond Diagram
E
d
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(3)
d_
A
O
CL
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3
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Deed 2282/164
State of NC
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. NEW BER1~ LQCATION

~ _ I S{TE LQCATI~N MAP
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STOCKPILE
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1 NE 10 YEAR
1 Deed 2522 053 ° / a CLOSED MINEABLE ~
State of NC 1 ~ CIRCUITING V AREA BaRnER
_
POND w~
~
v~ Ji ~ ~i ~ v v v v ~Y y 50 f~
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pREVtOUS ~+L~`L~4PdD E wi F• v~ vi vi ~ v ~ ~ w ~ ~ 50 ft
1 ~o.xa ~c~~s~ ~~~ov~o ~ SPE ~ E NO DISTURB ~ , ~ ,u ~ "
BUFFER y ~ ~ Deed 972/147 ~ ~ ~ ~ ~ ~ ~ Holland, Stephen C I~
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AREA BORDER ~ „ ~ ~ s- ~ ~ ~ ~V ~l~ v ~ ~i ~V
C. t s . r~ v vi V v ~ ~
~ ~ w ~r ~ ~ ~ ~ ~ ~ ~
~6 ' ~V ~r v ~ v ~'v v ? ~r i v u~ ~~U ~ ~ ~ ~ ~ ~ ~ Deed 335$/'052
L~ ~ Yellow Lab farms
~.r1 ~ , ! e ! U T U I q v i I !
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~ ? j ` ~ iv ~L ~ v ~ w ~ ~ ~V a~ ~V Ali w v ~i `W w
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v ~ ~ ~ ~ ~ ~l/ Vii.,

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~ ~ i 0'~ e i Mi ebble Area ~d 5heNar ~raek ~ ~ ~ V ~ v v ~V ~ W ~ ~ w
~(}j $~,6,(,~ 122 (hfn wt6~ 6e n } .V ~i ~ ~ v ~ ~ ~ ~ ~ w ~ _ ~ ~ ~ w w ~ ~ ~ ~..a..~
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~ ~ v. ~r ~ du ~ ~y v .y ~ ~y y ~ ~ ~ v ~i w vi of ~ ~ ~ ~ Ji ~ w ~ Ji ~ y ~ v ,I. y ~j
e.. 20' Wide Berm ~ ~ v ~ ~ v v IV v v v ~ ~ ,~J~ ~T t-rP 1 V ~pp~~{ \ ~f`1 ~U~ v~ ~ „ ~
a 10 TaI! ~ ~ ~ ~17 ~5 ACRES ~
I
10 Ditch - s - _ w ~1r ~l~ W J~ y v ~ ~V ~b ~ d ~ ~ V/
~ ~ ~ ~
_ =i - ~ ~ ~ ~ ~ v. ~ ~ ~ w ~ ~ ~ w w
I I~ I I F~ _ y ~ ~ ~ ~ ~
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:I I ~~.I I } I_E ~ I ~ I ~ ,1' ~I I I I 1 I ~~h_i 1 I III _I ! ~I l l-~I
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II I--111 1 ~ 1 ~I . I ~ I f l l l~ l i l I I~ I I I~ I I I I I;~~ (I ~=1 I I ~I I_ ICI I I~._, , '~~~'I'~II(_~=11~ ~11'~I~I~ ~I1~=1~i !I~~:III~-;Iii~Ill~=111 ili~-lii~-:
i, 3---i i r-iii--i t.---iii--~ i i~ f- i E r-_i ; i_.._, i t-i i t---i i~--i i t-i ; i---i
NOTE: THIS DITCH BERM FOLLOWS THE WESTERN
A O E WIL PROPERTY BOUNDRY THE BERM L N L N
0 LOW THE REM(ANING PROPERTY BOUNDRY FL y
XCEPT BORDERING HWY 53 WHERE THE BERM IS E _
A NOMINAL HEIGHT OE 10' AND 50 'WIDE.
LEG ND:
PROPOSED QUARRY CROSS
_ sTAT~ RouTE _ SECTION(
10' BERM AND ~ _T9 SCALEF
Y CENTERLINE FENCE
~i ~ PONDS GF~QUND ~.EVE~.
~ 20' ~o BACKFILLED 12' OVERBURDEN
50ft to CentE ft to Centerline ~ / O M NBMUMEN ~
3 TO 1 SLOPE 12 MARL
18' ROCK
- - - - C/L OF CURRENT DITCH
EX1STIi~G QUARRY ~~OOR 8' MARL
. _ ~ _~~,F NEW LIME PLANT AREA
POWER LINE
PROPERTY LINE
NOTES:
~ ~ L~• ~ CENTER LINE OF BERM ES
1 TOTAL MINEABLE AREA UNDER ORIGINAL PERMIT APPROX. = 72.5 ACRES + -
MINEABLE AREA BORDER
2 TOTAL MINEABLE AREA UNDER NEW 10 YEAR PERMIT APPROX. = 167.22 ACRES 22 ACRES
3 TOTAL MINEABLE AREA APPROX. = 249.2 ACRES + -
10 YEAR MINEABLE AREA
4 ENT{RE PERMIT BOUNDRY AREA = 398.0 ACRES + -
5 MINIMUM DISTANCE BETWEEN MINEABLE AREA ~ SHELTER CREEK = 122 FT + 22 FT
~ ~ ~ WETLANQ AREA NOT TO BE IMPACTED
v ~ r
0 125' ?50' 500' PERMITED AREAS MINED IN PHASE 1 ~ 1
Lr..:.::'
I USG CO~eC~: I
MINERBLE AREAS WHICH WELL NOT BE open ,~-~7ra~e~~ ~ ~ /~t~a. ~o~. ~t ~~n`~. 2~IZ e R~
( MINED
r re ~ one 10 YEAR ~ I ~ EAB LE AREA ~ ~
R9 9 case: e~~in fie. ale. . g r ~ ~J rojec ~k