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HomeMy WebLinkAboutNCG020679_OTHER_20060607STORMWATER DIVISION CODING SHEET
NCG PERMITS
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PERMIT NO.
DOC TYPE
❑ HISTORICAL FILE
0 MONITORING REPORTS
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PRELIMINAKY
CF Lt_t LY'_, AN U r `.A I
VAP -lilt
MAP r10F� IZ97
V, ACnjA,-
TOTAL ACRLAGE.-
3�t&O ACRf5 �t
i 5 C Y, Ti 'AYE eL A W
2.6 ACKff'-- t
11 XI
.14
...................
rr•..
.. .may �.�-...•.. �
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k.i— I kvml — nen —s--ren from USCI Top..puO.y Yupd. Cumirue! ur ±Iuea 1
nr re�nr:.e In A Inc tr of me pond It.kv {th— r.-
wMnertiAn ]6' nccl.�
alaper vr� choM m h.,v,—LUE _ � G. 9-
�hrM[:�i ••-
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� sr~pi�ry.MnY - -- - - - - Ai.TC1ti %.1\k.tFiiN(
owr. 111fA6 sever t-.Sr I OAT P'M7eeiR Sa]7!
Shelter Greek Mine - 48 Hour Pump Test on Well B-7
May 1st - 3rd 2006 Pump started @ 2 18 PM, May 1st
Flow Rate = 100 Gallons / Minute
Dept". to Water (ft) Dravvdn n (ft
0
Date
Time av
Readin
B-7
0-1
0-2
Ov3
0-4
0-5 0-6
B-6
B-7
0-1
0-2
0-3 0-4
0-5
0-6
B-6
5/1/06
2 00 PM
- 1 at Start
546
576
616
264
3 66
291 I 3 58
8 29
U UU
U OU
I 920
j 200 000
000
000
000
I 2 24 PM
2
1528
1026
725
412
3 66
1
982
4 50
1 10
148 000
2 31 PM
I 3
1618
11 72
843
464
369
I
I
1072
596
T 64
I 2 27 f
279
_ 200 003
2 25 ! 004
2 40 PM
4
1642
1220
895
489
370
1
1096
1 247PM
5
1658
1249
925
550
370
1112
673
309
286 004
I
1 2 56 PM
6
? 6 66
I 12 72
I 9 43
5 20
3 70
11 20
6 96
3 27
2 56 0204
I
3 O6 PM
1 7 _
16 76
12 87
9 62
5 30
3 70
I
11 30
711
I 346
266 004
I 3 16 PM
! 8
16 82
13 00
9 72
5 38
3 72
I
11 36
1 7 24
3 56
2 74 1 006
1_
�—
I 3 25 PM
I 334PM
1 9
1 10
_
_ 1685
1693
1306
1314
_
981
987
544
548
371
372
291 1 358
I
829
11 39
1147
{ 730
738
3 65
371
2 80 005
284 006
000
I 000
000
_
1 415PM
I 11
1701
I 1331
1008
I 560
371
I
1155
I 755
I 392
296 1 005
I
_
I
6 07 PM
8 08 PM
12
I 13
17 22
17 13
1362
1342
1022
1 1024
572
I 574
3 71
1 3 7t
I
11 76
11 67
I 786
7 66
406
4 08
I 308 005
3 70 0 05
_
_
5/2/06 I
8 38 AM
14
17 01
I 13 69
10 43
5 90
1 3 70
11 55
7 93
4 27
3 26 0 04
�—
_I
_
-�
11 07 AM
4 30 PM
15
16
_ 17 18
17 13
13 65
13 60
10 43
10 43
1 5 90
5 92
3 70
3 70
_
3 48 3 64
3 50 3 67
8 42
8 47
11 72
11 67
I 7 89
I 7 84
1 4 27
1 4 27
3 26 0 04
3 28 004
1 0 57
0 59
I 0 06
0 09
L 0 13
0 18
5/3/06
7 40 PM
�8 48 AM
1 54 PM
17
18 _
19
_ 17 12
1718
1711 1
13 62 10 42
I 1370 1049
1366 1 1050 1
4 94
I 6 00
600 I
3 70—�
3 71
373
—L
3 81 3 70
364 7p I
1
_ 8 50 _
8 57
11 66
i t 72
1165
7 86
7 94
1 790
1 4 26
I 4 33
434 I
230 004
3 38 0 05
336 0 07
0 70 __
073 1
0 12
014
1 021
0 28
Well Data
Well # Dia
1 Depth
Dince
I fromstaB-7
B-7 4"
2"
—1
L_ 80'
1 80,
10'
0-2 2-
80'
100,
0-3 4"
80,
254'
_
____ 0-4 __ _ 2" _ _
O.5 —I 4-
--8-6 1 4" --
_ _ 15' _ _
80'
254' _
15'
_1_39T
139T
80'
1327'
Aquifer Data (all wells)
Fine Sand -0-20'
Limestone-20'-80'
Fine Sand -80' +
Note Wells 0-3 thru 0-6 are in wetlands
Note Fine sand overburden (0-20') is considered confiining laver as evidenced by lack of drawdown during test
Shelter Creek Mine - 48 Hour Pump Test on Well B-7
May 1 sit - 3rd 2006 Pump started @ 2 18 PM, May 1 st
Flow Rate = 100 Gallons / Minute
Depth to Water (fl ) Drawdown (ft) I
Date
Time (avg Reading
B-7
0-1 1 0-2
1 0-3
04
0-5
0-6
B-6
B-7
0-1
1 0-2
0-3
0-4
0-5
0-6 I B-6
I I
I
511106
2 00 PM 1 at Start
646
576
1 616
I 264
366
291
358
829
000
000
0 00
0 00
0 oo
000
000 000
2 24 PM 2
15 28
10 26
' 726
412
166
982
450
1 10
1 48
000
2 31 PM 3
16 1 B
16 42
11 72
12 20
8 43
1 464
369
1072
596
227
200
003
2 40 PM 4
8 95
1 489
370
10 96
6 44
279
225
I 0 04
j
2 47 PM 5
_
1658
1249
925
1 550
370
11 12
6 73
309
286
004
2 56 PM I 6
1666
I 1272
943
520
370
_
11 20
I 696
3 27
2 56
004
3 06 PM 7
1676
1287
I 962
I 530
370
11 30
I 711
3 46
2 66
004
3 16 PM 8
1682
1300
I 972
I 538
372
11 36
7 24
356
274
006
325PM 9
1885
1306
981
544
371
1139
730
365
280
005�
3 34 PM ! 10
16 93
13 14
9 87
5 48
372
291
j 358
829
11 47
7 38
3 71
284
006
000
000 000
415PM I 11
1701
1 1331
1008
560
I 371
1155
755
392
296
1 005
T
607PM I 12
1722
1362
1022
572
371
1176
786
406
308
005
8 08 PM 1 13
1713
1342
1024
574
371 1
I
11 67
766
4 08
310
I 005
5/2/O6
8 38 AM I 14
17 0.1
1369
1043
590
3 70 I
�_
11 55
7 93
427
326
004
I
1
11 07 AM I 15
17 18
13 65 I
1043
590
3 70
348
364
842
11 72 I
789
I 4 27
3 28
0 04
057
008 01
30 PM 16
17 3
1360 I
1043 I
592
370
350 I
367
847
11 67 I
784
427
I 328
004
0699
009 018
r4
7 40 PM 17
�--T7-11-2�
13 62
10 4�4
sa
3 70
!
11 66
7 SB
426
230
004
l-131�1
8 48 AM 18
17 1 B I
13 70 I
10 49 I
6 00
3 71
3 61 I
3 70 I
8 50
857
11 72
7 94
4 33
3 38
I 0 OS
0 70
0 12 021
1 54 PM I 19 1
1711 I
1366 I
10 50 I
6 DO
373
364 I
372 1
11 65 1
790 I
4 34 I
3 36
_
0 07
073 1
014 I 028
Aquifer Data (all wells)
Fine Sand —0.20'
Limestone—20'-80'
Fine Sand —80' +
Note Wells 0-3 thru 0-6 are in wetlands
Note Fine sand overburden (0-20') is considered confnning layer as evidenced by lack of drawdown during test
IMap Page 1 of 1
Scale 1 1000 4)
CALCACRES 122 231834 ACRES I10
NAME HOLLAND STEPHEN C LAND VALUE $205,660 00
ADDR 8315 HWY 53 EAST BUILDING VALUE $65,053 00
CITY BURGAW TOTAL VALUE $101,721 00
STATE NC DEFERRED VALUE $168,992 00
ZIP 28425 SUBDIVISION Null
PROPERTY ADDRESS 12467 NC HWY 53 E ZONE SEEMAP
PROPERTY DESCRIPTON 110 ACRES YELLOW TAX CODES GO1 F23 R40 S64
LAB FARMS SEE PLAT 25 PAGE 84 EXEMPT Null
iDATE 4/29/1994a USE Null
SALE PRICE S60,OD0 00 ALT PIN 30657 000000
DEED 972/147 MAPN 0040 024 008
PLAT 002500B4 HEAT SQ_FT 1760
ACCOUNT 593657 000000 NBRHD 10000
TOWNSHIP 110 EXEM AMT Null
PCL CLASS R
http /Iris pendercountync gov/newgis/site/PrintTemplates/PrintOut aspx 3/29/2012
Map
Scale 1 1000
CALCACRES 122 231834
ACRES 110
NAME HOLLAND STEPHEN C
LAND VALUE $205,660 00
ADOR 831S HWY 53 EAST
BUILDING VALUE $65 053 00
CITY BURGAW
TOTAL VALUE $101,721 00
STATE NC
DEFERRED VALUE $168,992 00
ZIP 28425
SUBDIVISION Null
PROPERTY ADDRESS 12467 NC HWY 53 E
ZONE SEEMAP
PROPERTY DESCRIPTON 110 ACRES YELLOW
TAX CODES G01 F23 R40 S64
LAB FARMS SEE PLAT 25 PAGE 84
EXEMPT Null
DATE 4/29/1994
USE Null
SALE PRICE $60,000 00
ALT PIN 30657 000000
DEED 972/147
MAPN 0040 024 008
PLAT 00250084
HEAT SQ_FT 1760
ACCOUNT 593657 000000
NBRHD 10000
TOWNSHIP 110
EXEM AMT Null
PCLCLASS R
Page I of I
http //yis pendercountyne Gov/tiewgts/site/PrintTemplates/PrintOut aspx
3/29/2012
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North Carolina
James D Simons, P G, P E
Director and State Geologist
MEMORANDUM
Aya
NCDENR
Department of Environment and Natural
Division of Land Resources
Land Quality Section
November 1, 2005
TO Ms Linda Pearsall
Natural Heritage
FROM Brenda M Harris
Mining Program Secretary
Land Quality Section
Resources
SUBJECT Mining Permit Application for Shelter Creek Quarry, LLC
Shelter Creek Quarry
Pender County
Michael F Easley, Governor
William G Ross Jr, Secretary
Please find attached for your review a copy of the mining permit application
request for the above referenced project
Please review this information and advise as to the probability of this operation
having unduly adverse effect on wildlife and freshwater fisheries (G S 74-51 (2))
Please respond by November 23, 2005 so that we may complete our review of this
request within our statutory time limits
As is the case in our review of all mining permit applications, renewals and
modifications, this office will carefully review all proposed erosion and sediment control
measures to ensure that they are sufficient to restrain erosion and off -site
sedimentation However, any comments your agency can provide regarding effects on
wildlife and freshwater fisheries would be greatly appreciated If your staff wishes to
perform a site inspection, it is recommended that they contact the person submitting
this request to set up a convenient date and time Also, please send a copy of your
comments to the person noted in the application RETURN ALL APPLICATION
MATERIALS AND MAPS WITH YOUR REVIEW COMMENTS TO THIS OFFICE
Your continued cooperation is greatly appreciated Please contact Ms Judy
Wehner at (919) 733-4574 if you have any questions
Ibmh
Attachments
cc Mr Dan Sams
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 •919-733-45741 FAX 919-733-2876
512 North Salisbury Street, Raleigh, North Carolina, 27604
A
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UNLESS TYE.RE CMAr<GE IN THE _W O UR.'udUSH!J W'jIpNP H=W ISPIAYEP d
P.EGUI�TICNS 'HI E7.1.n:vgT'ON OF _GFION .IOr.,IJKSDI�ION =14'�
V. Df FELL LEE FA PrWOO N TD FxL:cp FIVE 1'EAZ; FROF,: \ 5 q[;,ys+
T11:5 PATE T1115 PfM A'ATIONW MFJE UTIU]Iw-F 1Y— 1 "s �� h N
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3 FOR NOTES AND��
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EKPfZi'i¢N SATE rrr � --
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324382 462 2377,51 571 L103 324028 58 2378178 436 LI51 g23792 262 2571526 39] L208 323459 305 23>]9;60 804 L251 322950 007 2379165 075 1311
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DIVISION OF WATER QUALITY
SURFACE WATER PROTECTION SECTION
WILMINGTON REGIONAL OFFICE
MEMORANDUM
To Stormwater Permitting Unit, Raleigh
From Linda Willis, Env Eng I, SWPS, WiRO���i ,
Through Ed Beck, Regional Supervisor, SWPS, WiRO
Subject Shelter Creek Quarry LLC
Attached is an NOI and check for $80 00 The application was received into
the Wilmington Regional Office on April 17, 2006 The application indicates
the facility has developed a stormwater pollution prevention plan The
narrative states BMPs are incorporated into the mining plan The SWPS has
not seen a copy of the mining plan
The application indicates 3 discharge points The narrative indicates the
adjacent and isolated wetlands will be protected by the use of ponds, water
canons and a level spreader, however there are no calculations or models to
support this claim Maintenance areas are not identified on the map Bulk
fuel star age ar eas a e � lot iiidicateu of i tr ie site rnap Analytical monitoring
requirements as defined by the NCG020000 permit do not appear to be well
understood according to the narrative The 72 5 acre mining site is estimated
to produce 250,000 gallons per day There are no calculations provided to
support that estimate The application indicates no chemicals will be used for
flocculation, the narrative discusses the potential for chemical additions to
wastewater The narrative states the level spreader will discharge onto
mineable property and not directly into the wetland The map indicates the
level spreader will discharge to wetlands The provided calculation for the
radius of influence around the mining site is based upon a steady state radial
flow equation Assumptions were used in determining the radius of influence
No pumping tests have been conducted and there is no data to determine
seasonal changes in the water table relative to the wetlands
In conclusion, there is very little discussion in the narrative that indicates the
permittee has an understanding of the permit requirements pertaining to the
NCG020000 permit There is no discussion pertaining to BMP inspection and
maintenance requirements, sedimentation and erosion control measures, no
preventative maintenance and good housekeeping practices including spill
cleanup or control measures, identification of bulk chemicals or fuels and
location of storage and vehicle maintenance areas, analytical and qualitative
monitoring requirements as identified in NCG020000, groundwater monitoring
strategies to demonstrate the effect of pumping and, as necessary, establish
the pumping regime necessary to reduce impacts, detailed plans to maintain
the surrounding hydrology and the respective monitoring to demonstrate
compliance with 15A NCAC 2B 0231, and no specifics pertaining to the closed
loop process recycle wastewater system
A plan should be developed that will address these issues before a general
stormwater permit is granted
CC Noelle Lutheran, WiRO
Joanne Steenhuis, WiRO
Steven Everhart, WiRO
1 !J '
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PAY
A TO THE
ORDER OF—
FNB
E FREEMONT STREET OFFICE
3UFIGAW NORTH CAROLINA
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'SHEL`TEWCREEK,QUARRY LLC'`t
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t. �,,,STEPHEN CMOLL'AND sr',',
`�'8315NCHWYr53EAST `ju 0,
BURGAw, NC.28425,'i' \, ✓ <? , r Y fz^ °' %°� �cJ�'° ,!( %7 , , �; "68-1341531 w
PH 910-259-5743' '.,',DATE�
)l�u//t��°sib `'1t",{�%�/,i'f �r'� �'y`.f ti�\`,4i it 1�fY� ti'i� tJk�. kyf �,..1 ✓.� , ,`�`/ yfe�l1,
101
DOLLARS 12
nr
A
Y
Ay; Division of Water Quality 1 Water Quality Section
NCDENRNational Pollutant Discharge Elimination System
E Ro«yo.s ,wo wmw.ti Rene[!
NCG020000
NOTICE OF INTENT
FOR AGENCY USE ONLY
Date Rece ved
Year Month Dav
Cemficate of Cnvnrape
ChecK 4 Amount
Perms[ Assigned u
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG020000
STORMWATER DISCHARGES associated with activities classified as
SIC 14 Mineral Mining Industry (except as specified below)
The following activities are also Included
Active or inactive mining operations (including borrow pits) that discharge stormwater contaminated with or
that has come in contact with, any overburden, raw material, intermediate products, finished products,
byproducts or waste products located on the site of such operations
Stormwater from vehicle maintenance activities at mining operations, overflow from facilities that recycle
process wastewater, and/or mine dewatering
The following activities are specifically excluded from coverage under this General Permit
Peat mining, coal mining, and metal mining
Stormwater discharges from mining operations which are intermixed on site with stormwater from asphalt
operations, and oil and gas extraction operations
Standard Industrial Classification Code
(Please print or type)
1) Mailing address of ownerloperator
Name
Street Address
City
Telephone No
" Address la which all persist correspondence vnii be mailed
2)
Location of facility producing discharge
Facility Name
Facility Contact
Street Address
City
County
Telephone No
3) Physical Location Information
Please provide a narrative description of how to get to the facility (use street names state road numbers, and
distance and direction from a roadway intersection) I voggaerlet JS we
f} pp�n r►r >�eL5 mile-S. ilk) e - e C t
(A copy of a Anty map or USGS quad sheet with facility clearly located on the map is required to be submitted with this application}
Page 1 of 4
SWU-217 101701
L- � - _3
NCG020000 N O !
4) This NPDES Permit Application applies to which of the following '4s t""C V' RS bAe 'flGv S&
X New or Proposed Facility Date operation is to begin Aliwilng A ns•,:5?wj2
❑ Existing
5) Standard Industrial Classification
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code 1 4 _
a !
6) Provide a rieti a 7scrition of the types of minerals mined at this facility t o )le-)
G(
7) Discharge Points
Number of discharge points (ditches, pipes, channels, etc that convey discharges from the property)
Stormwater _ 1 Mine dewatenng 1 �T Process Wastewater Overflow
Please provide short narrative description of discharges L eye._ Drta �G�eV- N l 4j yt
�i r o� o ✓f s , �E, a R,±t.a,C19ac4yi a ✓4-12 i IJ k.. -�. ,__
8) Receiving waMrs
What is the name of the body or bodies of water (creek, stream, river, lakg, etc } that the fa ility stof�water
discharges end up in?-ye-�S�y-0-a.�t_V --� e l �f __ _� e.� e✓ l !'za'A
If the site stormwater discharges to a separate storm sewer system, n"a� a the operator of the separate storm
sewer system (e g City of Raleigh municipal storm sewer)
9) Does this facility have any other NPDES permits?
KNo
n Yes
If yes, list the permit numbers for all current NPDES permits for this facility
10) Does this facility have any Non -Discharge permits (ex recycle permits)?
Ld No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility
11) Does this facility employ any best management practices for stormwater control?
❑ No
XYes
If yes, please briefly describe d_ _el td.t�� Z LI c� e
12) Does this facility have a Stormwater Pollution Prevention Plan?
❑ No
EKYes /� L
If yes, when was it implemented_ ft��C�t� 12c?•v�r��! !/� _
13) Are vehicle maintenance activities occurring at this facility?
❑ No Sway Yes
14) Are mine deewatering discharges occurring?
❑ No KYes
Page 2 of 4
S W U-217-101701
NCG020000 N O 1
15) Are discharges of overflows from process wastewater treatment systems occurring?
)< No
❑ Yes
If yes, answer the following questions on the wastewater treatment system
a) Please describe the type of process used to treat and/or recycle the process wastewater Give design
specifics (i a design volume, retention time, surface area, etc ) Existing treatment facilities should be
described in detail and design cnterta or operational data should be provided (including calculations) to
ensure that the facility can comply with requirements of the General Permit [Use separate sheet(s)]
Note ConstruGhon of any wastewater treatment facilities require submission of three (3) sets of plans and
specifications along with their application Design of treatment facilities must comply with requirements
15A NCAC 2H 0138 If construction of wastewater treatment facilities applies to the discharge of process
wastewater include three sets of plans and specifications with this application
b) Does this facility employ chemical additives to flocculate suspended solids?
XNo
❑ Yes
If yes, please state the name, manufacturer and the quantity of average daily usage of the chemical
additive
c) Does this facility overflow only during rainfall events exceeding the 10-yr, 24-hr rainfall event?
El No {?5-Yes
16) Hazardous Waste
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
No ❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg of hazardous waste generated per month) of
. hazardous waste?
(g No ❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg or more of hazardous waste generated per month) of
hazardous waste?
fVn IF-] Vas
d) If you answered yes to questions b or c , please provide the following information
Type(s) of waste
How is material stored
Where Is material stored
How many disposal shipments per year
Name of transport 1 disposal vendor
Vendoraddress
17) Certification
North Carolina General Statute 143-215 6 b (t) provides that
Any person who knowingly makes any false statement representation or certification in any application record report
plan or other document filed or required to be maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article or who falsifies tampers with or knowingly renders inaccurate any
recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article shall be guilty, of a misdemeanor punishable by a fine
Page 3 of 4
S W U-217-1 o1701
NCG020000 N O 1
not to exceed S10 000 or by imprisonment not to exceed six months or by bath (18 U S C Section 1001 provides a
punishment by a fine of not more than $10,000 or imprisonment not more than 5 years or both for a similar offense )
I hereby request coverage under the referenced General Permit I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit
I agree to abide by the following as a part of coverage under this General Permit
1 agree to abide by the approved Mining Permit for this mining activity (A copy of the valid
mining permit must be attached to this request
2 I agree to not discharge any sanitary wastewater from this mining activity except under the
provisions of another NPDES permit specifically issued therefore
3 1 agree that bulk storage of petroleum products and other chemicals shall have adequate
protection so as to contain all spills on the site
4 1 agree that solid wastes will be disposed of in accordance with N C statutes and rules
governing solid waste disposal
5 1 agree that maintenance activities for vehicles and heavy equipment will be performed so as to
not result in contamination of the surface or ground waters
I agree to abide by the provisions as listed above and recognize that the provisions are to be considered as
enforceable requirements of the General Permit
certify that I am familiar with the information contained in this application and that to the best of my knowledge
and belief such information is true, complete, and accurate
Printed Marne of Person Signing
Title v �^
of
1- 0 5
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $80 00 made payable to
NCDENR
Final Checklist
This application will be returned as incomplete unless all of the following items have been included
2" Check for $80 made payable to NCDENR
PT� This completed application and all supporting documents
❑ Copy of the valid approved mining permit for the facility
E?' Copy of county map or USGS quad sheet with location of facility clearly marked on map
Mail the entire package to
Stormwater and General Permits Unit
Division of Water Qualt
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the issuance of an NPDES permit
Page 4 of 4
SWU 217-101701
0
Date 1/23/2006
Project Shelter Creek Quarry
Radius of Influence in Unconfined Aquifers by Thiem Equation
Reference Bouwer, Groundwater Hydrology, 1978, McGraw-Hill, pg 67
J I TRUi WATER TABLE
-
1
I
SURFACE I I / UPUIT � FORCHHEIMER
OF I I WATER TABLE OKSEEPAGE I I I
i I ihv hI h
I I
h Iw
rz
IMPERMEABLE
Assume Horizontal Flow when r > 1 5H (Dupuit-Forchheimer)
Height of Seepage Surface
h.-h. = (h2-h.)[1-(h fU2J/(1 + 5r,,,fhz)[1 + 0 02tn(r2/rw)]
where r2 is taken as 500rw
Given Q =
250,000
gpd
K =
30
gpd/sf
h2 =
75
ft
h,w=
0
ft
r, = rw =
260
ft
h.-h. = 4 599
hw = 99 ft
Thiem Equation Q=,rrK(h22 - h,2)/ln(r2/r,)
Find r2
Rearranging Thiem yields r2 = rwe [TrK(h22 - hw2)/Q]
II
r2 =1 2,150 feet
NOTE As flow is Increased with no change in drawdown, the
Radius of influence decreases
IR
r
SHELTER CREEK QUARRY
Wetland and NPDES Pennit Narrative
Since the initial conception of the Shelter Creek Quarry
Mining Plan, protection of the wetland area on the mining property
was always the top priority and consideration for any and all
designs for mineral removal Consequently, there were many Best
Management Practices (BMPS) incorporated into the mining plan
As we know, normally most mines have a single collection point
for storm water, with a single discharge point into nearby surface
waters This plan uses (3) separate ponds for water collection and
final discharge Also, other significant (BMP' S) are as follows -
Blasting will occur during the initial sinking cut After
the face is exposed, a large 180,000 lb. excavator will
be used to dig the rock without further blasting if
possible s f
?_ All exposed land frPe of olVerhµrdeLn v rill ullo VV Vvater to
be guided and collected in the main sump area
3. Stored overburden will be encircled with silt fences as
depicted on the mining plan
4 At overburden removal areas, silt fences will be
provided to prevent runoff onto mineable rock
5 All storm water will go to (3) separate collection ponds
before discharge by the level spreader. Ponds will be
cleaned before storage capacity is reduced by 50%
u Sedimentation will not leave the ruining property!
7 Maintenance on equipment will be done by an outside
contractor and all spent fluids will be removed by this
contractor
8 Bulk fuel will be contained a manner specified by
Federal and State law
9 A pond capable of containing a 25 year 24 hour storm
is projected to be built and contain the level spreader
This water will be able to be monitored for color, foarn,
SHELTER CREEK QUARRY
Wetland and NPDES Permit Narrative
Since the initial conception of the Shelter Creek Quarry
Mining Plan, protection of the vtietland area on the mining property
was always the top priority and consideration for any and all
designs for mineral removal. Consequently, there were many Best
Management Practices (BMPS) incorporated into the mining plan.
As we know, normally most mines have a single collection point
for storm water, with a single discharge point into nearby surface
waters. This plan uses (3) separate ponds for water collection and
final discharge Also, other significant (BMP' S) are as follows.
I Blasting will occur during the initial sinking cut After
the. fare 1c Pxn(1CPt� a jarOP 1 Rn nnn lh Pv,•at.�t„r Will
r v._ed t.,v ;Vv,v vY xV. VAVU7LLCV1 Yi 111
be used to dig the rock without further blasting if
possible
.. , Vii v��j,vuvu iu�iu 11�V 111 VVL1UUlden ill allowwatero
be guided and collected to the main sump area
3 Stored overburden will be encircled with silt fences as
depicted on the mining plan
4. At overburden removal areas, silt fences will be
provided to prevent runoff onto mineable rock.
5 All storm water will go to (3) separate collection ponds
before discharge by the level spreader. Ponds will be
cleaned before storage capacity is i educed by 50%
6 Sedimentation will not leave the mining property!
7. Maintenance on equipment will be done by an outside
contractor and all spent fluids will be removed by this
contractor
8 Bulk fuel will be contained a manner specified by
Federal and State law
9 A pond capable of containing a 25 year 24 hour storm
is projected to be built and contain the level spreader
This water will be able to be monitored for color, foam,
outfall staining, visible sheen and dry weather flow
although it is not required
10 Analytical monitoring will be conducted at least
quarterly from land disturbance and process areas as
well as for on -site vehicle maintenance at the stone
water discharge outfall. (pond with level spreader)
11. Any material wash water ponds that are used will be
closed circuited so that the wash water will not leave
the property See mining plan for pond construction
data
By using a final large collection pond with a level spreader,
the water is designed to discharge at a uniform slow rate onto mine
nrnneriv withnnt leaving the nronerty directly to surface waters
This mining plan allows all discharge water to migrate at a slow
rate to and through a huge wetland of over 100 acres For every 12
square feet of wetland, 1 gallon of water will be dispersed
As one peruses the 72 5 acre mining plan that has been
submitted, an initial sinking cut is made once overburden has been
removed. This cut will be 70 feet below the top of the rock layer at
the corner of the entrance road on the western side. This initial
opening will have a 100' x 300'x 20' deep collection point beloA�,
L,_ cni r
ile JU 01 mineable
rock Thus, allt water ll01-11 thIeU 1111111l1r
operation is designed to collect in this area for further pumping in
order to keep the pit dry. It is important to understand that this
collection area will have a iioating pump station with a 11400
gallon per minute pump that will be located thereon This pump
will only pump water from the top 12 inches of the stored water,
` and will be controlled by mercury switches to run in an automatic
manner during normal climatic conditions. Because the 72.5 acre
mining plan has been reduced dramatically from the original 182
acre plan, it is reasonable to assume that the aquifer that would
have been produced by open pit mining has been dramatically
reduced from a projected 500,000 gallons per day discharge to
2501000 gallons per day Secondly, the area to be mined to the
-2-
west of the depicted road that separates the mineable area has a 7-4
year quantity of mineable reserves Once those reserves are maned,
this area will be ready for reclamation, and will remain flooded.
Consequently, after this short period of time, all concerns of
dewatering this acreage can be immediately diminished
The initial pump station has several unique features that need
to be addressed
1 This collection point in the quarry allows for solids to
settle for the first time, and also help calm the turbidity.
2. It provides for oxidation while being stored
3 It as an excellent area to add any chemicals that need to be
added as necessary from information collected at pre -
positioned monitoring wells
4 Finally, it acts as a large collection area for inchmate
weather storm water, since the pump station can be turned
off, and not be adversely affected because it will be
floating at all tames
Once this water leaves the pit area, it is pumped to a horseshoe
collection pond This area is large enough to provide the following-
1 11uuALIVIlat JVLL1A116 aL VLL LJ FI v V Au%lu 1 V1 3Vl1ua
2. Further oxidation will occur because this pond will be
directly exposed to sunlight and wind All of this xAatei is
above pat level and at ground level.
3 A floating pump station will be located at this pond also,
and only the top 12 inches will be pumped at any time.
4 It also provides an area for the addition of chemical
additives if necessary before the water is transferred to the
level spreader pond
Finally, the water from the horse shoe pond is pumped to the
furthest end of the last pond away from the level spreader This
level spreader has several very unique features.
I It further allows for more oxidation and settling of any
solids.
- 3 -
2. Since the open pit pond and horse shoe pond have the
same pump capacity, they can be automatically set to
discharge water every 15 minutes of a given hour. As an
example, when there is 15 minutes of pumping, 21,000
gallons of water will be sent to the final discharge pond
with the level spreader. Thus after a 12 hour period,
250,000+ gallons will have been pumped The wetlands
would only receive 21,000 gallons per hour and 45
minutes per hour with no discharge. With this plan, the
wetland will have 45 minutes of lull time for the first 12
hours and then zero discharge for the next 12 hours. This
is just one example on how the water can be timed through
the automation feature of the pump stations. Ultimately
there will be 1 gallon of water dispersed through 12 square
feet of wetland every 24 hours. There are many scenarios
of pumping time that can be studied and evaluated in order
to find the best combination.
3 The discharge point of the level spreader is in the
northwestern most part of the wetland and the natural
discharge point of the wetland is in the southeastern most
part of the wetland. Natural elevation changes allow this
water to move form the northwest to the southeast
4. The level spreader discharges water onto mineable
property and not directly into the wetland
5 It provides a third point for chemical additives in order to
make minor adjustments if deemed necessary
6 The level spreader system does not, allow water to be
discharged into any surface water directly
7 As the water leaves the level spreader, turbidity, solids,
and oxidation issues will have been resolved
It is also necessary to discuss the isolated wetlands
surrounding the mineable property As the cone of depletion
statistics show, there will be a migration of water to the initial
collection pit shown in the mining map What is also shown, are
-4-
shallow monitoring wells at key isolated wetlands depicted on the
map At each wetland area, water cannons will be propositioned
that can send water high into the air that can cover a ZUU' circle in
that particular wetland Thus a uniform dispersion of water can be
added to the wetland and systematically be monitored by the wells
A visual inspection from the state and federal personnel will show
that this technique will keep these areas pristine! The horse shoe
pond can provide large quantities of water to the pre -positioned
ponds near the wetlands, and the ponds will always contain enough
water to disperse to the wetlands via their own pumps The water
cannons will do an excellent _job of water dispersion rather than
single point discharge into a ditch or low area
The western and northern boundaries of the mineable land
bring up additional issues of dewatering. As it was mentioned
earlier, the cone of depletion from the initial quarry pond covers an
1800' area The western boundary of the mining plan that adjoins
State carr Agnd,, is not affected because, it is ffirther than 1800' It is
interesting to note that the gamelands have an average nominal 4
meter elevation The Shelter Creek Quarry mining property is 1-2
meters higher so there is higher- ground in the mineable area Since
the northwest corner of the mineable property has isolated
wetlands with monitoring wells and ponds with water cannons,
excess water in these areas will tend to migrate by hydrostatic
pressure and elevation to the gameland area A contour map study
shows wetlands on this gameland property to be several thousand
feet to the southiid awest of the i2 5 acre mining map T here is io
reasonable concern for this adjoining property since it is not going
to be affected
The northern boundary of the mine which is separated by
Route 53 has additional gameland owned by the state or designated
by the Nature Conservatory when funds are available to become
state gamelands Although this property lies in the cone of
depletion, a recent discussion with state Biologist Mr Vick French
concluded that all of the property near the mine site naturally
drains to the west north west or east north east at the present time-
- 5 -
When the property was first purchased by Weyerhaeuser, deep
ditches were cut in order to grow trees These ditches did drain
wetlands, but because they were cut so deep, the land did not
produce good tree growth. Ultimately the property was sold to
International Paper and then to the Nature Conservatory Group.
The large wetland to the north and west of the mineable property is
known as Angola Swamp and 1s over 8000 feet from the property.
This wetland drains into the North East Cape Fear River. The other
wetlands to the east northeast of the property are found south of the
town of Maple Hill and are over 12,000 feet away.
The cone of depletion will not affect any of these wetlands
and a monitoring well has been proposed to be put onto the
property, if deemed necessary. Also, Shelter Creek Mining will
have millions of yards of overburden, and would be willing to
close off the open ditches nearby that are on the state property in
the 1800' semicircle found in the cone of depletion. It must be
remembered, that the total 72.5 acres will be mined out in 12-14
years and then becomes 2 large lakes. The cone of depletion will
not be an issue after that time. If a monitoring well is allowed on
the state property as depicted on the map, Shelter Creek Quarry
can take whatever corrective action is deemed necessary to keep
the woodlands pristine
it 41,v .,U+T .,� t1,:� m:r,"s•,n .,��n ,vichac to in, iYP
111 st113[111Q1.Y LJI%, a Lllvr vl L111 ] 111i1J111 U9CLE1 Y71J[!VJ tiv a.
the attention of the readers of this plan to the following
1. The construction of three discharge ponds provides the
[necessary wherewit hai L liiaiittaiil ad�i�iiliii�, iv%tiai�ds 3 n -a
pristine condition without discharging into any surface
water directly The level spreader in the final pond will
accomplish this feat!
2 The isolated wetlands will also be maintained in a pristine
fashion by water cannons and ponds
3 Neighbor's property to the west and north of the mineable
property will not be severely affected because of the
aforementioned reasons already discussed
-6-
4 This mane will be operational for a very limited time,
while still providing up to 15,000,000 tons of needed stone
in a three county area
5. When the limestone has been removed, this same three
county area will have millions of gallons of drinkable
water for an infinite period of time
6 There is not a tract of land in Pender County with
mineable limestone that is more suited for mining than this
72.5 acre tract of land It is void of human neighbors and it
has a mining plan that will keep adjoining lands and
wetlands pristine and untouched. The mining plan has
A v 1- -
incorporated qualitative and quantitative measures that
provide safeguards that are not found in similar mines
already located in southeastern North Carolina!
A copy of this lnTa/r�rat`ivTe has been delivered to Ms Noelle
T 11f•n PY7n !lT ��P 1\i L \AI-]*PY niinlif-xi it1 ��17iYY11nlTtf�»
JL�ULI LVL UII %!1 Ll LV 1 I V •Y LALVl %,,'ULA I L.7 J.lL V 10IMil III YY ILAIIIIA&.Vll,
N C. for her perusal.
Respectfully submitted,
Stephen Dorenda
-7-
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WALT�N
ENGINEERING
n o T ' . 3 b O vJ ?mil ( � t) _ - - " . % n I . 1 /' — I
vmc
Date 7/20/2006
Project Shelter Creek Quarry
Radius of InflllPnneL in C:nnfinpd Aninferc by Thum Fntinfinn
Reference Bouwer, Groundwater Hydrology, 1978, McGraw-Hill, pg 67
77i7� ✓ i i ti"�S u ii7'� 1 r v, i. • � , �i7rC2��TlT.11l�l/71C\�\YTIT.RR`
K
Ljkif�iNt, Pir 20ME i RiC SJRFACE
ISW
/i /1 L11 LLJ1lClL�1�
� I I
{ f hK nk h h2 D H
CK
'77T% � � � i7%7��T77J;rT7Tll7�77TlT 7lT I77T�!!7
WPERIVE ABLE
Assume Horizontal Flow (Dupwt-Forchheimer)
Solution Procedure Enter data in highlighted cells
Adjust q and ham, in Thiem until Q and Qv are nearly equal (velocity
x area must = Q for mass conservation )
Given Q = 2,000,000 gpd = 1388 9 gpm
T = 1,944 ft`/d a y
Aquifer Thickness, D = 60 it
Hydraulic Conductivity, K = 32 ft/day
H= 75 ft, x099=h2= 7425 ft
h, = 30 ft
rJ=rw= 700 11
Ste• O�- -F�-; `'�=''°�•
Thiem Equation Q = TrT(h2 - h})/In(r2/rf)
'a SEAL , t,)
Find r2 16879,11
- h„,)/Q}
Rearranging Thiem yields r2 = r„,e I2TrT(h2
Where Q = ft3/day�gfRfCWP�`'��,
rz - 5 28E+03 feet
NOTE As flow is increased with no change in drawdown, the Radius of
Influence decreases
Check h.- by Groundwater Veloci
n=
018
dh = (h2 - h,,) =
4425
ft
dl = (rz - r,) =
4 58E+03
ft
v = Kdh/ndi =
1 74E+00
ft/day
Pit Perimeter, P W
4,939
ft
Flow Area, Af = P x h„, =
148,170
m
Q = v x Afx 7 48 = 1,925.581 gal/day
Shelter Creek Mining
Monitoring Well Data
1 Top of Pipe Readings are @ MSL
9 lAlwFwr ilovels J lv..wi.ons
l.r �fQiG1 IG�aI�I a1fV C_riQ7ONVlIS am. y[VEYI HI lC.L�L
Depth = 80
TP= 18 5
"
Date
Water Level
' E- levation-
k';�.,
,
Below.TP_ ,
Deviation
(ft)
(ft)
5/1105
1650
200
6/4/20051
1660
1 90
7/3/20051
1660
190
7/31/2005
1640
210
Me
9/2/2005
1630
220
1011 /2005
1660
190
_
11 /1 /2005
1670
180
12/3/2005
1650
200
1 /1 /2006
1640
210
2/3/2006
1640
210
f� fnnnc
df FfGVLV
.4n cn
F V JV
n nn
L UV
t o
4/1/2006
1660
1 90
4/30/2006
1660
190
6/3/2006
1605
245
7/1/2006
14 60
3190
"-,,,-'--Well #2�`;
Depth = 15
TP= 17.95
,wa ter 'N+, Wa
YLevel
Below TP
'Elevation
,���
(ft)
(ft)
1615
1 80
1615
1 80
1605
1 90
1595
200
1455
340
1555
240
1605
1 90
1595
200
1575
220
1585
210
i 5 65
2 ou
1575
220
1565
230
1430
365
1285
510
""TWell#34F �R
Depth = 80
TP= 14 2
Water -Level
wvce
-�Belojp,,
��
Elvaion
Deviation -
��< W, i:
(ft)
(ft)
1160
260
1170
250
1140
280
11.110
290
1110
310
1130
2 90
1140
280
1120
300
1100
1090[::k320
iu70
I 35u
11 10
310
1100
3 20
1180
240
1050
370
Shelter Creek Mining
Mondonng Well Data
Top of Pipe Readings are @ MSL
'vvaecr levels and elevations are given in fee%
Well # 4�--,
Depth = 15
TP= 14 3
`q
6 -- Date
=
--Water,
-._ �,� �'•
�Deviahon s,
� = _tea
ade-ten`.'[',-
—
K��-��-e•r
x��ra.+N�wztWn�
`-
5/1 /05
1050
380
6/4/2005
1070
360
711/InnR
10 10
4 20
nt �`
7/31/2005
1030
400
9/2/2005
1030
400
a
Yw
10/1/2005
10 20
410
11 /1 /2005
1060
370
12/3/2005
1060
370
!,7
1 /1 /2006
1040
390
2/3/2006
1030
400
3/1 /2006
1030
400
4/1/2006
990
440
4/3012006
1010
420
6/3/2006
940
4907/1
/2006
720
710
Well# 5u
Depth = 80
TP= 13.5
Wate=
,, Level
t
EfeGii6n�
Deviation
1000
350
1010
340
g 50
4 00
950
400
930
420
930
420
960
390
970
380
960
390
950
400
940
410
960
390
990
360
1030
320
1040
310
Depth = 15
TP= 13 3
' Water `?;
�,-t
Level..-�
rim-,,-�
Below-TP
Elevation
Deviation-
..
ft ryftY��
940
390
960
370
9 2Q
4 1 U
9 00
4 30
900
4 30
940
3 90
970
360
960
370
940
390
940
910
390
420
930
400
900
430
910
420
950
380
Shelter Creek Mining
Monitoring Well Data
'These (3) wells are deep wells used for pump down test
A T.... ..L �...... o....a....._ ..� ra ■ROI
r. Walter
yr Pipe ncauneys are V
2. Water levels and elevations are given in feet
3 Wells #7,8 and 9 are all 8011 deep wells
,i,Weil #K7."�
Depth = 80
TP= 20 8
z-�—
Below TP I
[ft)
6/3106 15 00 5 80
7/2/20061 13 60 1 7 20
Depth = 80
TP= 20.9
Waterer
=
` � =-�--
Belo TP
�41M
a Elevation`
"Deviation
�t4t�r
1460
630
1410
680
I I
I
r Well_#9„
Depth = 80
TP= 21.7
Water Level
Below TP-
-Elevation
-Deviation
iftl
[ftl
1550
620
1520
650
L
I
RISER & BARREL DESIGN
Project Outlet/ID
Date Designed By
Step1 Determine peak flow, 1" (or 1 5") storm flow, controlling elevations etc
per Section 8 07 of the Sedimentat and Erosion Control Manual
and/or Stormwater Best Management Practices, as applicable
Note Use maximum design flow for riser, barrel, and emergency spillway
sizing, but use volume to be drained and temporary pool depth
to determine head for hole sizing
(1) BARREL DESIGN
Go'vernillg Furiciion Qp _ a(2gH)"'i(1+ Km + KpL)" = max discharge from pipe cfs
Rearranging Yields a = Q(1+ Km + KpL)—/(2gH""
Also a= (n/4)d`
Substituting and Reducing Yields d = [Q(1+ Km + KpL)"'1(n/4)(2gH)"]"'
where Qp =
104
= max discharge from pipe, cfs
g =
322
= acceleration of gravity, ft/sec^2
H =
1 9483
= elevation head differential, ft
Km =
1
= coefficient/sum of minor losses, usually 1
Kp =
005
= pipe friction coefficient
L =
150
= pipe length ft
do = [Q(1+ Km + KpL)v'/(n/4)(29H)"']— = 7 2 = calculated minimum pipe diameter, inches
d = 8 = specified pipe diameter, inches
(2) RISER DESIGN
Step 1 Determine riser size from Figure B 07b of Erosion Conrol Handbook
(NOT Table 8 07b)
Choose riser diameter first (from 'Inlet Proportions chart' first then
get head from Pipe Flow vs Head chart
Riser Diameter Or = 18 inches
Height at Riser Crest, He = 0 083 ft
Ao = area of a single dewatering hole ft2 = As(2Hh)°'1(20,428TCd)
Ai = area of a each of N dewatering holes ft2 = As(2Hh)"/(20,428TNCd)
Hcr
Elav ® Max
_1r3_Disch,—
Riser Diameter = Dr
—--———— —--- ——
T
—Hh
_--_�_—__
PeFroolentl ---
—Q—Q
--Y-------H---
Rlser Helght e Hr
9arrel
d
i I T
t I I
A He
AntC r,",rM,
Block
Lc — We We
(3) ANTIFLOTATION BLOCK DESIGN
where As =
118,261
= surface area of basin, W2
V =
66,845
= volume of water to be drained, ftA3
Hh =
0 565
= maximum head of water above dewatering hole(s) ft
Td =
10
= detention time to dewater basin, days
T =
240
= detention time to dewater basin, hrs
Cd =
060
= coefficient of contraction for the orifice (approximately 0 6)
Ao = As(2Hh)"'/(20 428TCd) =
0 427
ftA2
N =
21
= number of dewatering holes
Aic = As'(2'Hh)� 1(20428'T'N'Cd) _
= calculated area of each of N dewatering holes, ftA2
dtc = [(A,�"144)1(rz/4)]— _
= calculated diameter of each of N dewatering holes, in
di = (-2�
= specified diameter for each of N holes (must be < or = dic)
Notes Use square block, with variable height
Ignore pipe weight (conservative )
Block Buoyancy Bb = Wc`Hcpw pw = 62 4 Ib/c f
Block Weight, Wb = Wc`Hcpc pc = 140 Ib/c f
Riser Buoyancy, Br=(7U4)Dr`Hrpw
Bb + Br >1= Wb
Wc`Hcrw + (n/4)Dr`Hrpw = Wc`Hcpc
Rearranging and Reducing Yields We = 0 795Dr(Hr/Hc)"
Hr= 45 ft
Set He = 2 ft
Wcc = 0 795Dr(Hr/Hc)v' = 1 789 calculated minimum block width ft
We = specified block width, ft
b
hgSnol
3 ,-
i
I
off-
- —�
i
Note This
inforrnotfon
Wolton Engi
We are not
of the rnfor
Sorehoie
Locking Watertight Well Cop
Locking Wetertight Well Cap
Note: this
information
Wofton Lng
We are not
of the info'
Borcholy
Date 1/23/2006
Project Shelter Creek Quarry
Radius of Influence in unconfined Aquifers by Thiem Eauation
Reference Bouwer, Groundwater Hydrology, 1978, McGraw-Hill, pg 67
2t w
ORIGINAL PIEZOMETRIC SURFACE
5 52�
— T — — T
11w lsw
F.
I 11 I hw h, h h2 D H
1 1
1
I r
1 r2
I �
iMPE RMEABLE
Thiern Equation Q = 7rK(h22
- hw2)An(r2lrJ
Glen Q =
250,000 gpd
K =
30 g polsf
h2 =
80 ft
hw =
5 ft
rw =
260 ft
Find r2
Rearranging Thlern yields r2 = rwe I1rK(h22 - hw2)/ln(r2/rw)]
r2 = 2,876 feet
StEAL���]�
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��!' I I 1► I' i l l i I WALTON Em ims-, I11�
�,ir!. �I II! I ##IIl� }j
III '�IIl111111ii
Means, Averages and Normals
he following numbers are the means, ai erages and normals for Wtlnungton, North CdrOhna as computed by the National Climatic, Data Center Nornials, as listed, are
for the standard 30-year period from 1961 to 1990
Temperature("F)
siormals Jan Feb afar am \�laY Jun luI Aug Sep OG Nov Dec fear
ly\las 55 3 58 l 65 7 74 Da0 80 8 85 d 88 5 87 6 85 2 76 9 69 1 59 4 73 8
17ai1y'vlui 34 4 36 43 1 50 5 1 59 3 67 5 71 7 71 0 653 53 7 78 37 5 529
Dail}aig �9 473 544 623 701 765 801 794 753 753 570 185 634
Degree Days (Base 65"F)
Feb AuYearmls Jan SOt Nov 1
Heating 631 496 338 115
10
r 0-1
0 0 102 259 519 2-970
Cooling r 8 � 10 34
168
345
� I16 309 111 19 8 1926
Possible Sunshine (Percent)
Forrnals F Jan Feb Iv1ar apr h1ay Jun Jul Aug Sep �— Nov I Year
F — 57 59 F6E 71 67 67 62 62 I 63 59 63
Sky Cover (1/10ths)*
\leans Jan Feb Tlar apr Alay tun Iul Aug Sep Oct Nov �l]cc Yeir
SR -SS F 61 60 58 53 F 59 61 63 F 63 F GO 51 52 58 58
Mean Number of Days
Suntiseto Sunset Chinactei *
Pt ecipitalton
Snow Ice Pellets Hail
1201 fL
1 { SZ�0--,G x
•
Jan leb Alr A-Flay
JJlAugFnl Sep
Ckt Nov IkYearp
>=10" 02 O1 61 00 00
00 00 F 00 00 00 00 02 06
l hundetstotms
Mean#
Jan F I"-b
A4•u I \pr I N,Ey I Tun
Jul
Aug Sep
F-
Nor
F-57-1 Ywrt
F—FO4
71
23 32 55 75
117
94 39
13
08
53 477
Fog with visibility 114 inde or less
\9ean# Jan
Fcb
1•lar
Apr \la}' fun T , Aug Sep Oct Nov Dec
Year
I — 25
18
F 22
15 21 6 F 09 13 23 26 28 F 7T-71
243
High 7 etnpe atui es
>=90°F 00 00 00 09 22 85 166 128 47 02 00 00 59
F-72°F OS 01 -01 00 00 00 OU 00 00 00 00 01 08
Low lempeiatutes
= 1 iy mG
\38bto0n(�
v
'Acty[�
Sleanfi
Jan 1 cb 1 *�rh4ay Jun !ul Aug Sep
Qt1 Nov I 77
Y(*
<32°F
133 105 39 03 00 00 00 OU 00
01 29 105
415
Station Pressure (mb)
average Jan 1=eb \oar
Apr
—', y Jun lul Aug Sep I Nrn'
l t ear
I 7187 F182 10162
F10154
10150 10151 10160 10165 ]0168 10179 FF138
10194 10170
Relative Humidity (Percent)
average Jan Feb Atar Apr h4ay Jun Jul Aug Sep I "" Nov I N" Ycar
---91 78 77 79 81 87 89 89 91 I 96 F87 �— 80 £3�
lam 1 80 79 82 80 85 85 87 85 82
1pmEST I 52 52 I 56 59 63 I v 62 I I — 55 I
66 6r7780 0877 74 737pmFS 71 63
Precipitation (Inches)
\an Fae— 1m11auSpOt Nov�ar
3 87 3 70 3 88 2 87 143 5 98 8 13 6 94 5 04 2 69 3 11 3 63 54 27
Wind (MPH)
dean Jan Feb mar apr �4ay F Jun Dul lug Sep ,� ltov 19ec I ear
Speed 90 F97 1 101 1 102 1 91 F 85 80U r 87
^I I 1 i I I I
17ir$ \' \1 N F V T
Notes
X With the installation and commissioning of the Automated Surface Observing System in Wihuington, this category is no longer recorded
$ Prevailing Direction was computed through 1963
..xt�
Back to the Climate Section
Back to the NWS Wilminuton, NC Home Pase
Wall and rfTW lffl from Tnf: I Wester nenfh Below GrnunAI Fl avafinn
Date Pum on / o Dlachar a GallonWDa B-7 1 0-6 1 MW 23 1 B-7 I C.6 I MW 23 1 8-7 0-6 1 MW 23 COMMENTS
5/1 /06
off
NA
546
358
NA
396
228
NA
1204
1672
NA
Before quarry began and before pump test
1011412011
on
1 000 000
6 94
9 1
NA
544
780
NA
1056
1120
NA
Friday Quarry has been pumping all week
1 /27/2012
on
840 000
NA
NA
97
NA
NA
68667
NA
NA
101333
Friday Quarry has been pumping all week
2/7/2012
on
840 000
671
9 11
1024
5 2l
7 61
74067
1079
11 19
95933
Tuesday Quarry has been pumping 2 days
2113/2012
on
924 000
708
938
1 1082
1 558
808
1 798671
1042
1 1092
1 90133
IMonday After pumps have been off all weekend
2/16/2012
on
1 000 000
702
933
1042
552
803
758671
1048
1 1097
1 94133
IThuisday after pumping for 3 days
2/18/2012 9AM
I off
I NA
707
1 93
1044
557
8
1 760671
1043
11
9 3933
Saturday Quarry closed and no pumping
2JI812012 12PM
off
NA
706
928
1045
656
798
76167
1044
11 02
9 3833
Saturday Quarry closed and no pumping
2/1812012 4PM
off
NA
705
928
1042
555
798
75867
1045
1102
9 4133
Saturday Quarry closed and no pumping
06/07/2005 14 09 9197339612 PAGE 03
SHELTER CREEK QUARRY
Wetland and NPDES Permit Narrative
Since the initial conception of the Shelter Creek Quarry
M1nme Plan, protection of the A etland area on the mining property
was always the top pnority and consideration for any and all
designs for mineral removal Consequently, there were many Best
x5 Management Practices (BMPS) incorporated into the mining plan
Kok yam' r As we know, normally most mines have a single collection point
for storm water, with a single discharge point into nearby surface
waters This plan uses (3) separate fonds for water collection and
` final discharge. Also, other significant (BMP'S) are as follows-
1 Blasting will occur during the initial sinking cut After
the face is exposed, a large 180,000 lb. excavator will
.11 be used to dig the rock without further blasting if
.
possible
2 All exposed land free of overburden will allow water to
�-' be guided and collected in the main sump area.
3 Stored overburden will be encircled with silt fences as
'_,r+.� �nrtnta�i rrtltn rnr»tn atinr
�� %4%�F1VLVlA Vil L11%, 1111111116 FICU1
-L rc, 4 At overburden removal areas, silt fences will be
provided to prevent runoff onto mineable rock.
till >UJ11J1 VY¢LGl �'�'111 gO LV lJ f sekJdraLC UVIIG411V11 p1111i1J �
' before discharge by the level spreader Ponds will be '
Kow M"'_k'F_q cleaned before storage capacity is reduced by 50%
nil _
0 3eUl111Ci1LdL1V11 Will Iiot leave we 111ining property, (yw_ '
k 7 Maintenance on equipment will be done by an outside
contractor and all spent fluids will be removed by this VO
-�kouJ� �u cal mu.Cl�
biix"sW�4z
4,0
\�Ob `
L
contractor
8 Bulk fuel will be contained a manner specified by n�
Federal and State law 6,„��"`�
9. A pond capable of containing a 25 year 24 hour storm
/ is projected to be built and contain the level spreader
This water will be able to be monitored for color) foam,
06/07/2006 14 09 9197339612 PAGE 04
outfall staining, visible sheen and dry weather flow
alrhnmyh it is not required
. -a.. x
10 Analytical monitoring will be conducted at least
quarterly from land disturbance and process areas as
ac for nn_s;tP Vehicle maintenance at the storm
Yl Lla aa.vx�_-
water discharge outfall (Pond with level spreader)
11 Any material wash water ponds that are used will be
closed circuited so that the wash water will not leave
the property See mining plan for pond construction
data L rw � lay- P 6-- 3 '
B using a final large collection and with a levels reader,
,a6 y g g P P
the water is designed to discharge at a uniform slow rate onto mine
property without leaving the property directly to surface waters
This mining plan allows all discharge water to migrate at a slow
rate to and through a huge wetland of over 100 acres. For every 1
' square feet of wetland, 1 gallon of water will be dispersed
As one peruses the 72.5 acre mining plan that has been
submitted, an initial sinking cut is made once overburden has been
7 17 L _ "7 /1 L`___� L....1 __.. aL,., 4r.w i.-C+1d w.��L lnt 7PY 'S+
`4' reinovea. l This Cllt will DC / v ICGL urluw u1G ILO— vx
4 `
the comer of the entrance road on the western side, This initial
opening will have a 100' x 300'x 20' deep collection point below
the 50' of mineable rock Thus, all water u V-m the iuinang
operation is designed to collect in this area for further pumping in
order to keep the pit dry It is important to understand that this
7 Aflnv
collection area will have a ,iioating pump_statiun ,with- a I ItVV
gallon per minute pump that will be- located_ thereon This pump 'hX`'�
will only pump water from the top 12 inches of the stored water, "C
\ ' and will be controlled by mercury switches to run in 'an automatic ►''off O q-"
manner during normal climatic conditions. Because the 72 5 acre ���►
S " miningplan has been reduced dramatically from the original 182
y
acre plan, it is reasonable to assume that the aquifer that would ?
have been produced b , o en pit minin has been dramatically
reduced from a projected 500,000 gallons per day disch�e to
250,000 gallons per day Secondly, the area to be mined to the
��a , , �40 aa��, � ,,Q, � � , a sp 10 00
06/07/2006 14 09 9197339612 PAGE 05
west of the depicted road that separates the mineable area has a 7-9
nrndr n„ant,ty of mineable _reserves Once those reserves are mined,
this area will be ready for reclamation, and will remain flooded
Consequently, after this short period of time, all concerns of
�azr�tar;,,n t hiic arrPaaP car, be im- nedlately diminished.
a«ri litr Ae r- fl
The initial pump station has several unique features that need
to be addressed:
1. This collection point in the quarry allows for solids to.�
�,o0�settle for the first time, and also help calm the turbidity-
4
aa�� 1 2 It provides for oxidation while being stored
p
A I 3 It is an excellent area to add any chemicals that need to bed VO
D � added as necessary from information collected at P�/
�' ,
�1d positioned monitoring wells
4 Finally, it acts as a large collection area for inclimate
weather storm water since the pump station can be turned
off, and not be a versely affected because it will be
✓^ floating at all times. t _
Once this water leaves the pit area, it is pumped to a horseshoe r 0
collection pond This area is large enough to provide the following- 11�
Y 1 , 1kUUlllUIldI setELItlingCLl ea
sJ iJi V Jiur.0 xV4 Jvixu mil' n
�p _ 2 Further oxidation will occur because this pond will be v �
°�Ix> directly exposed to sunlight and wind All of this water is `
above pit level and -at ground level
9 3. A floating pump station will be located at this pon lso, s
��1 and only the top 12 inches will be pumped at any time.
' 4 It also provides an area fur the addition of cheiuical ^a
'? p '�
additives if necessary before the water is transferred to the Wultby
level spreader pond
Finally, the water from the horse shoe pond is pumped to the
furthest end of the last pond away from the level spreader_ This (Yo
level spreader has several very unique features
1 It further allows for more oxidation and settling of any
solids.
06/07/2006 14 09 9197339612 PAGE 06
2. Since the open pit pond and horse shoe pond have the
. �r same nurnp capacity, they can be automatically set to
250 �°o discharge water every 15 minutes of a given ho . As an
example, when there is 15 minutes of pumping, 21,000
c,allnnc of water will he cent to the final dkeharge pond , _A n rt�4"i
with the level spreader Thus after a 12 hour period,
faoc o �250,000+ gallons will have been pumped The wetlands
2 -L� would only receive 21,000 gallons per hour and 45 S�
25 ,
minutes per hour with no discharge With this plan, the A 12P
wetland will have 45 minutes of lull time for the first 12 r -
hours and then zero discharge for the next 12 hours. This -40
is just one example on how the water can be timed through
the automation feature of the pump stations. Ultimately
00 there will be 1 gallon of water dispersed through 12 square
feet of wetland every 24 hours. There are many scenarios
Of PumRing time that can be studied and evalu r er
to find the best combination
3 The discharge point of the level spreader is in the
A northwestern most part of the wetland and the natural
� � � ' _ _ L _ _.«. a L' aL ... 41 ...,...1 1L ,-. ♦L �..-...�.�.�. 4
discharge point of 11jC 4�'Ckld1111 Is in k11G J[!L'kkllrvQJLG111 most
� part of the wetland Natural elevation changes allow this
4p, -) ,
water to move form the northwest to the southeast
4 The level spreader discharges water onto muieaoi5L�_
property and not directly into the wetland' 2 54W'"' Zap
5 It provides a thud point for chemical additives in order to
make ' d adjustments if deemed minor a �u menu necessary -A'01
6 The level spreader system does not, allow water to be .,f,s��
discharged into any surface water directly
V)Y7 As the water leaves the level spreader, turbidity, solids, 9%
and oxidation issues will have been resolved -t,
00 It is also necessary to discuss the isolated wetlands
�G osurrounding the mineable property As the cone of depletion
statistics show, there will be a migration of water to the initial
collection pit shown in the mining map What is also shown, are
SE-M
06/07/2006 14 09 9197339612 PAGE 07
shallow monitoring wells at key iso rated wetlands depicted n the `e`'�
4�
1) man At each wetland area, water cannons will be pr',opositioned
,7;Xl- that can send water high into the air that can cover a 200' circle in
that particular wetland Thus a uniform dispersion of water can be
added to the wetland and systematically be monitored by the wells
A visual inspection from the state and federal personnel will shoAN
that this technique will keep these areas pristine! The horse shoe
pond can provide large quantities of water to the pre -positioned
N° ponds near the wetlands, and the ponds will always contain enough
TP py water to disperse to the wetlands via their own pump, The water
cannons will do an excellent Job of water dispersion rather than
single point discharge into a ditch or low area
The western and northern boundaries of the mineable land '
bring up additional issues of dewatering As it was mentioned
earlier, the cone of depletion from the initial quarry pond covers an
1800' area The western bound of the mining plan that adjoins
�'Y g P
state gamelands is not affected because it is further than 1800'
�� 4' interesting to note that the gamelands have an average nominal 4
,nD meter elevation The Shelter Creek Quarry mining property is 1=2s�
{ r ' _ .� h ter .. ♦1..,.�t, is
1-., r.�, rtrr► ,A +n the mineable `.1 a tin
�MyQd� ri�Citi�'ir Iki iGl aiJ 111G1G 1J !11 1V1 ivaand aI. uiv �i►�r:+...vim.. ..r_.�. .. Inc
V�-ice the northwest corner of the mineable property as isolated
,- wetlands with monitoring wells and ponds with water cannons, s
ram-- 1 4r..�. 4, rn+n o+ay�_rl
excess wdLer in L[lc.`�G areas will LV IIU Lv u1l�raw ., J Ll� %&L %Jo... VAW
pressure and elevation to the gameland area A contour map study
shows wetlands on this gameland property to be several thousand�/�
�
+ ti ] f tL _ '72' C «.. r., r... T A+rA c 11 ,
feet to trie souui ana west o� Lnc �G J a��e ri'iii►M Ma . 11121
�'�,�,s;asonable co ern for this ad oinin roe since i is not
�,o'"` to,be affected ° s s 70004
��.j.� The northern boundaryo the mine whi is separated by Sac
Route 53 has additional gameland owned by the state or designated
by the Nature Conservatory when funds are available to become
state gamelands Although this property lies in the cone of ; W
�ID
depletion, a recent discussion with state Biologist Mr 'dick French
' concluded that all of the property near the mine site naturally
adrains to the west north west or %s,orth east at the present time.
06/07/2006 14 09 9197339612 PAGE 08
nI
When the property was first purchased by Weyerhaeuser, deep
ditches were cut in order to grow trees These ditches did drain
wetlands, but because they were cut so deep, the land did not
produce good tree growth Ultimately the property was sold to
International Paper and then to the Nature Conservatory Group
The large wetland to the north and west of the mineable property is
---- known as Angola Swamp and is over 8000 feet from the property
This wetland drains into the North East Cape Fear River The other
wetlands to the east northeast of the property are found south of the
town of Maple Hill and are over 12,000 feet away
The cone of depletion will not affect any of these wetlands
and a monitoring well has been proposed to be put onto the
property, if deemed necessary. Also, Shelter Creek Mining will w-
have millions of yards of overburden, and would be willing to aC
close off the open ditches nearby that are on the state property in
1800' semicircle found in the cone of depletion It must be
remembered that the total 72.5 acres will be mined out in 12-14
years and then becomes 2 large lakes The cone of depletion will
not be an issue after that time if a monitoring well is allowed on
the state property as depicted on the map, Shelter Creek Quarry
can take whatever corrective action is deemed necessary to keep
the woodlands pristine
In summary, the author of this mining plan wishes to invite
the attention of the readers of this plan to the following-
` 1 The construction of three dischar a onds provides the
necessary wherewithal to maintain adjoining wetlands in a
pristine condition without discharging into any surface
water directly The level spreader in the final pond will
accomplish this feat'
2 The isolated wetlands will also be maintained in a pristine
fashion by water cannons and ponds `z-� ? m
3 Neighbor's property to the west and north of the mineable °`�``
property will not be severely affected because of the
�U aforementioned reasons already discussed
-6-
06/07/2000 14 69 9197339612 PAGE 09
a
5.
0
This mine will be operational for a very limited time,
while still providing up to 15,000,000 tons of needed stone
m a three county area
When the limestone has been removed, this same three
rmun%V area will have millions of gallons of drinkable
water for an infinite period of time
There is not a tract of land in Pender County with
mmeahle limestone that is more suited for mininiz than this
72.5 acre tract of land It is void of human neighbors and it
has a mining plan that will keep adjoining lands and
nrictinP and �intn»rhfv] The mining, nlan has
.. V�lwl�av VAAJVAI-- aanv —p r ha_
incorporated qualitative and quantitative measures that
provide safeguards that are not found in similar mines
a3raor��r lnr•otarl ir► en»t�PactPrn ?�nI-th �arnlina�
uu�+uu)' ivvca,w�a 111 JVua.elVu+J4vaa1 Aa
A copy of this narrative has been delivered to Ms. Noelle
T
1riiLi.Ui1G� lC-L-lI V--1r *k1l1l�.+ I�Jl�.!t. utar, fliltvicinr tinin[tnn1✓l • A'7►v all 1;1�
N.C. for her perusal
Ikespectlull-V sublilllll+d,
Stephen Dorenda
-7-
o't
,5L,= --
Shelter Creek Quarry Mining Plan
Table of Contents
Item Number
1. 7.5 minute quadrangle map (red tab #1)
Ia. Pender County Highway map (red tab 42)
2. Shelter Creek Development Plan (no tabs)
3. Pender County Special Use Permit (blue and green tab #3)
4. Wetland Delineation Survey (red and green tab #1)
4a. Wetland Delineation Preliminary (red and green tab 42)
5. U. S. Army Corps of Engineers
Notification of Jurisdictional Determination (purple tab #4)
6. NPDES Permit Application (green tab #5)
7. Retention Pond (blue and yellow tabs #1 and #2)
8. Turn -lane Detail (blue tab #8) ,
9. Phase I - Cross -Section (yellow tab #9)
10. Project Phases 1, 2, 3, and 4 (purple and yellow tab #10)
11. Revised Mineable Area (blue and red tab #11)
Shelter 'reek Quarry
Mining Plan
Background
The need for aggregate stone in the Pender, New Hanover, and Brunswick County
areas of Southeastern North Carolina is currently in a critical state Certain sizes of
aggregate material are currently being sold on an allocation basis The recent building
boom and construction demands have forced mining companies to ship aggregate
materials by rail at a cost of approximately $10 00 per ton which has caused prices to
escalate to an average selling price of over $15 00 per ton
Unfortunately, the natural way that crusteous limestone is found in relatively
narrow layers causes mining companies to use vast acres of property in order to produce
quantities capable of satisfying the demand The current demand for these three counties
exceeds three million tons of aggregate, and there is only one mine capable of satisfying
one-third of the demand
Southeastern North Carolina has placed strict restrictions on mining in these
counties. and the. nnniilntinn hnnm hnc 1Pft VPPV few lame trnrtc of lnnrl that ran rninliAi
for mining permits Wetlands occur naturally in these areas, and large tracts of land just
naturally have wetlands intertwined with dry land The current open pit mine operating in
Pender County has impacted over 30 acres of wetlands, and is having difficulty producing
1,000,000 tons per year of aggregate
It is important to recognize that the proposed Shelter Creek Quarry is necessary
and beneficial to the growth demands being placed on this three county area, as well as all
of the road construction demands for maintenance and by-pass construction The Shelter
Creek Mining Company has approximately 50,000 000 tons of aggregate reserves in an
extremely rural setting, and will only impact approximately 25 acres of wetlands over a
50 year period of mining It will suffice to say that the quality of life for a Pender County
resident will only be affected in a positive manner The new jobs that this mine will
produce are too numerous to mention
Shelter Creek Quarry will produce 1,000 000 tons of aggregate per year and will
need 50,000 truckloads per year to deliver to job sites Imagine for a second how many
more trucks and drivers will be needed The taxes derived from the purchase of
$10,000,000 worth of mining equipment and $3,000,000 in additional on the road trucks
and concrete equipment, as well as all of the employees necessary to operate this
equipment will be a welcomed source of revenue to Pender County
Cmrrent demand-- f�nr drir ing .:ratan an.i y�ra+ar rnr haiisehol� coaJ4[Li .won Vt. I
VL µL[L.L KLVR 1VR µ uUV 11R
communities in these three county areas have grown at a geometric rate Natural coastal
aquifers are being or have been depleted from their underground source As Shelter
Creek is mined, it will be able to provide millions and millions of gallons of water to
these communities, since the mining plans call for this site to turn into a reservoir once
2
the aggregate is mined This water will be available for hundreds of years to come for
human consumption
The most unique feature of the Shelter Creek Mining Plan is the fact that all water
that leaves the open pit area will never be pumped directly into any stream creek or
river Although, a maximum of 500,000 gallons of water could be pumped per day, all of
it will go through the 100 plus acre wetland that will stay pristine and undisturbed
because of the unique level spreader that will allow all water to go directly into the
wetland without disturbing it Also, 8 monitoring wells have already been installed and
the water levels will be checked as necessary on a daily, weekly, and monthly basis when
deemed necessary If other wells are needed, they will be installed
Shelter Creek Mining Company is a must for Pender and surrounding counties
because human and industrial growth have placed increasing demands on aggregate
production)
1 Site Plan:
Project Boundaries - The proposed mining site with boundaries is
shown on
1 i" x 17" Shelter Creek Development Plan submitted herewith Also, see
item numbers 3, 4, 9, 10, and 11
Property Boundaries - The property boundaries are the same as the
Shelter Creek Development Plan depicts Also, see item numbers 3, 4, 9,
10, and 11
Excavation Boundaries - The Shelter Creek Development Plan
shows excavation boundaries in both plan views and isometric views Also
see item numbers 3, 4, 9, 10 and I
Structures, Existing and Proposed - A maintenance building is
shown on the western boundary in the middle of the excavation area It will
stay A scale house will be located on the incoming main road on the east
side, approximately 1000' from the entrance off State Route 53 No others
are proposed See Development Plan and item numbers 3, 9, 10, and I I
Areas of Environmental Concern - The Development PIan shows a
129 acres of wetland that will remain untouched and pristine Monitoring
3
wells and a huge man-made lake with installed level spreaders will protect it
during the entire mining phases by constantly feeding up to at least 500,000
gallons of water daily to it See Development Plan and item numbers 4, 5, 6,
7, 9, 10 and 11
Security Facilities - A large 10' high berm will extend the entire
length of the property along State Route 53 along with a steel cyclone fence
6' high This berm and fence will penetrate the eastern and western
boundaries into the tree line A locked gate inside of two parallel fences on
the main entrance road will come 500 feet onto the property toward the
scale house See Development Plan and item numbers 9, 10, and 11
Woodland Boundaries - The Development Plan shows woodlands to
Me south, east, and west State Route 53 is to the north Aiso, see item
numbers 9, 10, and 11
S1--ir le e Yeas - The Development Plan sh� TV' et�^..� FILes fvr the
different phases of mining in three different areas over the life of the mining
operation The entire Phase I mining will last 10-12 years Since all of the
equipment is portable, a new stockpile area is designated in Phase 2, and
Phases 3 and 4. Consequently, waste material will always go into the
mined -out pit area and other stockpiles will move immediately as shown in
the Development Plan Also, see item numbers 9, 10 and l I
Settling Basins - The Development Plan shows two settling ponds
with each phase, and they are located near the finish plant and stockpile
areas The wet -wash ponds will move after each phase and will be cleaned
as necessary until they are permanently moved at the conclusion of each of
the phases Waste material will constantly be placed in the bottom of the
mined out headings Also see item numbers 9, 10 and I
Discharge Facilities - The Development plan shows one man-made
lake that will allow discharge water to be evenly distributed to the wetland
area All sump water coming from the mining pit will be sent to the man-
made lake It will then be evenly distributed from this Iake to the wetland
area The main sump area will hold over 1,000,000 gallons of water and a
floating pump station will pump up to 500,000 gallons/day to the horse -shoe
M
retention pond Another floating pump -station will pump the 500,000
gallons from the horse -shoe pond to the retention lake At this point, the
level spreader will discharge the water directly into the wetlands See items
7, 91 10 and 11
Wetlands - The Corps of Engineers and NC Division of Water
Quality are informed about the 152 acres of wetlands Permitting is
ongoing at this time The wetlands shown in the Development Plan will
remain pristine and a likely habitat area for wildlife See item numbers 3, 4,
5, 7 and l l
Streams with Classification - None Sump water will not be
discharged directly to any streams or rivers Shelter Creek borders mining
site on the south side of the property Also see item number 4
Site Elevation - Benchmark elevations are provided on the
T7PVPlnrn,ment Plan The average PIPITatinn nn the milmng rn,rnper �i ;c
approximately 20' MSL Also, see item numbers 4 and 8
Site Access - The main entrance will be provided off of State Route
53 as depicted on the Development Plan See item number 8, 9, 10 and l l
Special Flood Hazard Areas - The mineable property is in an
unnumbered A zone
Drainage Facilities - Any storm water that goes to the pit area will be
pumped from a central pumping station as depicted on the Development
Plan All other ditches that are on the property will still be used as well No
new drains are expected to be needed The drains and sump water deliver
natural and pumped water to the man-made lake for discharge It will be
discharged evenly into the wetlands No sump pump water will be directly
pumped off the mining site The submitted cross sections show that the
sump settlmiz pump basin will be approximately 100 ft x 300 ft, and it will
have the deepest mined area in the quarry at -80 ft MSL The actual water
level will automatically be controlled by mercury switches, and will only
pump water down to a nominal -65 ft MSL This is necessary since non -
turbid water is desired for pumping Also, this will be the first chance that
0
suspended solids can be removed before any pumping sends water to the
first settling ponds The sump also provides a huge retention area in case of
inclement conditions During Phases I and II, the sump will be located in
the NE corner of the mining area, and Phases III and IV show the sump in
the NW corner of the mining area Each sump is designed to work
automatically, and there will be only one sump working at any one time as
depicted in the Development Plan See item numbers 7, 9, 10 and 11
Proposed Buffers - The 50' buffer around the property is shown on
the Development Plan Phase 1 shows the buffer and fence ending in
wooded areas to the East and West The entire perimeter of the mining
property will stay undisturbed, with native trees and flora All wetland
areas will be buffered at a distance of 50' or greater Should more ponds of
::fates and level spreaders be IL%, vOOCAIy` to protect the Z5111a11Gr iVGLlartd 4lreas,
they will be added All wetland areas will be provided with at least 1
monitoring well
Elevation Monument - A new elevation monument will be placed
inside the entrance of the mining site and marked accordingly Currently a
marker elevation is provided by the state at the entrance area of State Route
53 See Development Plan
Sanitary Facilities - The quarry scale house and maintenance
I
uilding will have sanitary facilities for employees A portable unit will be
provided for customers
S r eas iv vas. �iiwi a�.0 = rf lie De v clop ll len+ Pian silo VVs eLlc11 area that
will be cleared of overburden prior to mining There is currently 140 acres
of farmland The remaining 258 acres will be cleared except for wetlands
during the four different phases of mining, but the buffer zone will stay
undisturbed whenever small wetlands are approached See item number 4
for revised mining plan area
2. Proiect Description:
Description of Activities - Open pit mining will be conducted using
a sinking cut, once overburden has been removed Explosives will be used
to establish the working faces, but an attempt to dig the material without
further use of explosives will be attempted The reasons that explosives
would not be used are economic in nature, but beneficial to everyone If the
rock is capable of being mined with only excavators, more sellable stone
can be made and the cost per ton would be reduced Consequently, if
explosives are used, the primary crusher will be located in the pit and
charged with a rubber -tired wheel loader Material will then be sent to the
finish plant for further crushing and sizing by conveyor Stockpiles of the
finished material will be stored at the finish plant The finish plant will be
moved three times, since all of the equipment is portable Because of this
fact, reclamation can be done more quickly and as the Development Plan
indivc.w,7, reciai ic"itivn is ompliied as cacl-I phase of mining it co111pleted
Costs associated with reclamation bonding should be lower than normal,
since reclamation will be completed after each phase of mining Also, see
item numbers 3, 9, and 10
Schedule of Activities - The state permit is being applied for now
that the special use permit has been approved Each phase of mining will
take 10-12 years, and all of the mining will be completed in 40-50 years
During this period of time, reclamation occurs as each phase of mining
occurs Portable equipment makes this possible, and nothing is left behind
when anew phase of mining begins See item numbers 9 and 10
Hours of Operation - The hours of the quarry operation will be from
05 30 A M through 9 00 PM Monday through Saturday These hours
include summer and winter operation and provide for emergency repairs and
maintenance.
State Permits Required - A state mining permit, NPDES Permit to
discharge into a wetland, and permits from NC Division of Water Quality
and the US Corps of Engineers
Ownership of the Site - The entire site was owned by Mr Stephen
Holland of Pender County Yellow Lab Farm, LLC, now owns the land, and
Shelter Creek, LLC owns the mining rights Mr Holland is president of
7
both corporations
Structures on the Site - A maintenance building is currently located
there and a scale house will be built
Material to be Mined - Crustaceous limestone and marl, also
overburden, sand, and topsoil will be excavated, stockpiled, and sold as
requested
Mining Process - A horizontal heading will be established after a
sinking cut has been shot and emptied The new heading will be drilled and
blasted if it cannot be dug with large excavators It is far less expensive not
to drill and blast, however, by not using explosives, more useable rock can
I- moue U Me crus,icrs anu screens In arty event, the iilateriai will then be
picked up by rubber -tired loaders and fed through crushers and screens by
means of conveyors After additional crushing and sizing, the material will
be stockpiled by elevated Stackers, and then loaned onto customer trucks
Ultimately, a stationary sump area will be established as shown in the
Development Plan in order to dewater the headings as mining proceeds All
water from the primary sump will be pumped from a floating pump station
at the rate of 800-1400 gallons per minute None of this water will leave the
property directly but will be deposited in the wetland area by way of the
level spreader built into the man-made lake During inclement weather
conditions, millions of gallons of water can be stored in the pit area See the
Development Plan and item numbers 7, 9, 10 and 11
Material Processing on the Site - All mined material will be
crushed, sized, and in some instances, washed prior to stacking and being
sold
Water Discharged from the Site - The water that is pumped from
the stationary sump will travel via a ditch to a primary settling pond and
then to a discharge pond with a modified system of discharged pipes that
will provide a uniformed discharge of water into the wetlands The
Development Plan has designated that all sump pump water is to be
deposited into the wetlands and not into ditches, creeks, or rivers adjacent to
the property See item numbers 3, 7, 9, 10 and I 1
M9.1
Amount of Discharge - The sump area is designed to pump 2 million
gallons of water a day Initially, less than 500,000 gallons of water are
anticipated to be discharged per day The total sumn numn water whether it
is 500,000 or 2,000,000 gallons per day will leave the property through the
wetlands See item 7
Receiving stream Classification - None There is not a discharge
point near a stream, creek, or river All water stays on the mining property
and egresses through the wetlands
Existing and Proposed Sanitary Facilities - There are none at the
present time The scale house and maintenance building will have
ne4e-aisar y 115aa illltics A po LaV1G Linn will e provided Vl C usl.ofners.
Existing and Proposed Utilities on Site - The Four County Electric
Membership Corporation provides service at this time Additional 480 volt
service will be provided later and a 500 kw portable generator will be
installed for emergency needs All of this will be portable
Reclamation Use - A 200 house gated community will be built, and
two lakes will provide boating, fishing, and recreational water sports Also,
the two man-made lakes will be available as a new water source for adjacent
developed communities The wetland area will remain a pristine wildlife
area
Reclamation, Pliers - T he mining plan allows ur reclaiIlation in four
phases After mining is completed in each phase, the mined area will be
immediately reclaimed and released from bonding This is shown in the
Development Plan and item numbers 9 and 10 Upon completion of Phase
1, all mining equipment, stockpiles, and wet wash ponds will be removed
Only the main pump station will stay until Phase 2 is completed
Reclamation Schedule - The total site will be reclaimed immediately
after the fourth phase of mining After Phase I and II are finished, water
will be allowed to fill the lake, and it will be totally reclaimed During
reclamation of Phase II, a fish habitat area will be constructed in the
C
southern part of the western lake prior to it filling with water The final
reclamation plan will be submitted prior to commencement of mining See
the Development Plan and item numbers 3, 9 and 10
Proposed Site Security - Berms, cyclone fencing, and a security gate
at the main entrance will built Also internal berms will guard wetland areas
and all roads and high walls will be protected with berms built to a height of
60% of the largest diameter tire on any mobile piece of equipment used in
the mining operation See the Development Plan and item numbers 7, 9 and
10.
Maximum Depth of Pit - All mining will be conducted 80- 100 feet
below site elevation at the quarry entrance Consequently, an average depth
of Fn fePt below MST shall exist on. the mine p r^vpei j' .^,nce tiie ry k llus
been removed The finished lake bottom elevation will be an average of
minus 60 feet MSL.
Acreage Cleared - The Development Plan shows permanent roads
and back filled areas as well as the 50 foot -buffer called for by the Mining
Act All other areas shown as lake areas will be mined See item number
11
Acreage to be Mined - The Development Plan shows 380 acres of
land, and it is estimated that approximately 182 acres will be mined See
item numbers 4 and 11
3. Cross section of the Site and Area to be Excavated Showing:
Existing Elevation - The Development Plan has cross sections
showing elevations The average elevation across the site is 20 feet MSL
Finished Elevations - The water in the lakes shown in the
Development Plan will be at an average elevation of approximately 11 feet
MSL
Slopes - Ail slopes are shown in the Development Plan and conform
to
to mining or open l lice requirements S_1 and 2_1 slopes are s1�own in the
aab va .�Nvvaua use requirements ✓-i uilu ✓-1 slopes ulV shown. ll 111 the
Development Plan, as well as 2-1 In some instances, trial and error will
determine and safest slope ratio
Existing Water Table - The current water table verified by
monitoring wells already located on the property show the level at 11 feet
MSL on an average
Final Water Elevation - The lakes are expected to fill to an average
level of 11 feet MSL
In Accordance with General Permit No. NCG 020000
Operation and Monitoring Plan
Shelter Creek Quarry, LLC.
8315 Highway 53 East
Burgaw, Pender County, NC
Prenarckd by
Stephen Dorenda
VP Operations
Shelter Creek Quarry, ILLC
L.
10 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 (I a) First and foremost is the
construction of the Speed -Up and Slow -Down lanes at the entrance to the mine site
20 Protect List Prior to Mining
30 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
n..rn A— 1 ,1 o -M— -A—11 h— � .cna f,-- 10 1 NAQ1 *— nv:motalcr 7'A ri XA4ZI 'Mic
a�Ja uu%.J tun%. i Li%. Lvuu LIL V■uaa�Ll u111 l � r L.X. . w apprvniiauwy �.. v •+i • 0
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?
440 Horseshoe Lake Remodebup-
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 dunng 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
50 Construction of the Level Spreader Lake
The level spreader lake will be built simultaneously with the two previously mentioned
Page 2
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
r.. t t_ t n tt-- r.t__ � t___
top ofthe crustaceous limestone, which will allow sonic o lne contained water to close-eticuit 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
nvPrhnrden The main, shnws hnw gtnrm water will he trarnrni-,d and cent to the main Cllmp 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 gilt fencing as ghn;un nn tt;e map
6 l 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 dnlled 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
Page 3
(base material) and does not use water for cleaning of the rock
70 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 serves -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
80 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 (1.a)
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)
Page 4
90 Water Monitoring and Test Wells
C TEA.1uy, 2nn15.+tlah.a.s nim m�ninr[7 been an oncyntnof ciy f6) wells that were plared
ii .��ie i, UVl ere l� ....� . r------
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 moninly 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 dewatenng activity elsewhere on the mining site
It has neon my-VneneneP iri mining rnagtal }imPOnni- that the hwirnlnvv 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, aiid bond 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
100 Drama a 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
coi}.r"ittaA e rnsc certinnc chn;tt dint the giimn cettlinv nmmn hasin will be annrnximate1v 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)
Page 5
110 Pumrnng 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
120 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 211 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
Page 6
distance from the wetland would be 80 feet and not 50 feet
1 J V lsolat{.V liletiand R1M.-i
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 gaiionsinour
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
140 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 2 building addition will be
added to the southem end of the current building This area will be with a covered roof and
avicrota floor Gennruol Prevent+ -a ..re mainten—minice ovnAint"A in thuz arPby an rintC1de
�
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 ids of contained coneuete storage ur spills
30 x 75 x 5' -�- 27 = 42 yds3 and 421 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 Dn" 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 seconda 1 contain,;,ent tang Al . rnnintenance will hbe
P
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
150 Discharge Monitoring
Discharge momtonng 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
Page 7
160 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 Dewatering
-Discharge charactedsfiics
--
'._ SzFi s" _ -
-- -
Measureniertt -
- rigs-t*r�s.jj
--Sample `r
4.
Ztj - _
_:; -Sample
`Loca[iori
_
pH
s u
Quarterly
Grab
E
Settleable Solids
mW
Quarterly
Grab
E
Total Suspended Solids
mgA
Quartedy
Grab
I E
l I UIUKJIry
NTU
Quartedy
Grab
E or U,D
Total Flow
MG
Quarterly
-
E
Table 2 Effluent Limitations for Process Wastewater and Mine Dewatenng
-��
- Discharge Charaeberisiics
-_Moathtj Average -
Daily Mammum
Settleable Solids
0 1 min
0 2 ml/l
Total Suspended Solids Industrial Sand Minin
25mgA
45m n
HRange
-
60-90
Turbidrt Freshwater non -trout streams
-
50 NTU
Turbidd Non -trout lakes and saltwaters
-
25 NTU
Turbidity (Trout Waters)
-
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, 1 can calculate the number of gallons
per no rain dthat 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 2
Example
116 9 x 62,595 72 ft 2= 609,786 ft 3
12
609,786 ft 3 x 7 48 gallons = 4,561,202 4 gallons/year
4,561,202 gallons/year = 380,100 gallons/month
12 months
3 80, 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
Closed Circuit Pond Diagram
.dr
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e t
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II.
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