NCG020879_COMPLETE FILE - HISTORICAL_20150518

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/V Ci&03 0699
DOC TYPE
❑HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑ (3 b is D�s I �
YYYYMMDD

1
Central Files: APS _ SWP _
5/14/2015
Permit Number NCG020879 Permit Tracking Slip
Program Category Status Project Type
NPDES SW In review New Project
Permit Type Version Permit Classification
Mining Activities Stormwater Discharge COC COC
Primary Reviewer RECEIVED Permit Contact Affiliation
larry.wade
MAYI�2015
Coastal SWRuIe
cEN-rRAL FILES
Permitted Flow
DWR SECTION
Facility
Facility Name
Major/Minor Region
Sawmill Land and Sand Mlne
Minor Wilmington
Location Address
County
Sawmill Road Nw
Brunswick
Northwest NC 28451
Owner
Owner Name
Sawmill Land and Sand LLC
Facility Contact Affiliation
Charles Carroll "
5014 Northwest Rd
Riegelwood NC 28456
Owner Type
Non -Government
Owner Affiliation
Charles Carroll
5014 Northwest Rd
Dates/Events
Riegelwood
NC
28456
Scheduled
Orig Issue App Received Draft Initiated
1/12/2015
Issuance Public Notice IssJJG
51w15-
Effe tiv
5I/ y�i r
ExpilatOn
�. f l /
Regulated Activities
Requested /Received Events
Sandlgravel wastewater
RO staff report received
v
RO staff report requested
Outfall 1
Waterbody Name
Stream Index Number Current Class
Subbasin
Rattlesnake Branch
18-66-5 C;Sw
03-06-17
r

Ai'lf'Av
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Charles L. Carroll
Sawmill Land and Sand Mine, LLC
5014 Northwest Road
Riegelwood, NC 28456
Dear Mr. Carroll:
Donald R,'van der Vaart
Secretary
May 14, 2015
Subject: General Permit No. NCG020000
Sawmill Land and Sand Mine
COC NCG020879
Brunswick County
In accordance with your application for a discharge permit received on January 12, 2015, we are
forwarding herewith the subject certificate of coverage to discharge under the subject state — NPDES
general permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-
215.1 and the Memorandum of Agreement between North Carolina and the US Environmental Protection
Agency dated October 15, 2007 (or as subsequently amended).
Please take notice that this certificate of coverage is not transferable except after notice to the Division of
Energy, Mineral, and Land Resources. The Division may require modification or revocation and
reissuance of the certificate of coverage.
Please be aware that mine dewatering at your site has the potential to impact adjacent wetlands. The
specific requirements for mine dewatering at facilities near wetlands can be found in Part III, Section E of
your permit. You must follow your approved Operation and Monitoring Plan during mine
dewaterinz discharges at your facility. Discharging mine dewater wastewater outside of the parameters
discussed in the approved Plan will be subject to enforcement action. Contact Dan Sams at the
Wilmington Regional Office at [phone] for more information about the Operation and
Monitoring Plan.
Division of Energy, Mineral and Land Resources
Energy Section • Geological Survey Section • Land Quality Section
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone [phone] FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina 27604 • Internet: http:llportal.ncdenr.orglweb/irl_
An Equal Opportunity 1 Affirmative Action Employer — 50% Recycled 110% Post Consumer Paper

NCG020879
Page 2 of 2
This general permit allows the discharge of stormwater and certain types of wastewater from your facility.
In your application, you specified that only mine dewatering water would be discharged from this facility.
If separate point -source discharges of stormwater occur (i.e., stormwater not combined with mine
dewatering water), you will be required to adhere to the conditions in this permit for stormwater
discharges.
Please note that the attached General Permit expires on June 1, 2015. Your COC will be automatically
renewed to cover the full 5 year term of the soon to be reissued permit. In the interim you must abide by
the terms of the expiring permit. You can review the proposed general permit changes once they are
posted at:
http://portal.ncdenr.oriz/web/wq/ws/su/current-notices
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Energy, Mining, and hand Resources, or permits required by the Division of Water
Resources, Coastal Area Management Act, or any other federal or local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Richard Riddle at telephone number
[phone].
Sincerely,
for Tracy E. Davis, P.E., CPM
cc: Wilmington Regional Office
Central Files
Stormwater Permitting Program Files
Division of Energy, Mineral and Land Resources
1612 Mail Service Center, Raleigh, NC 27699-1612 • Phone: [phone] + Pax: 919-807-6494
Location: 512 N, Salisbury Street, Raleigh, NC 27604 • http:/lportal.ncdenr.org/web/Ir/
An Equal Opportunity/Affirmative Action Employer

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG020000
CERTIFICATE OF COVERAGE No. NCG020879
STORMWATER DISCHARGES AND MINE DEWATERING
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Charles L. Carroll
is hereby authorized to discharge stormwater and process wastewater from a facility located at
Sawmill Land and Sand Mine
Saw Mill Rd NW
Northwest
Brunswick
to receiving waters designated as Rattlesnake Branch, a class C, Sw water in the Cape Fear River
Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions
set forth in Parts I, II, 111, and IV of General Permit No. NCG020000 as attached.
This certificate of coverage shall become effective May 14, 2015.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day May 14, 2015.
0
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

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NCG020879
N
W E
S
Map Scale 1:24,000
Sawmill Land and Sand Mine LLC
Latitude: 341 17' 59.64" N
Longitude: 780 08` 43.80" W
County: Brunswick
Receiving Stream: Rattlesnake Branch
Stream Class: C, Sw
River Index: 18-66-5 (Cape Fear River Basin)
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Facility Location

ALITO-UmA Division of Water Quality / Surface Water Protection
NCDENR National Pollutant Discharge E �211FM D
Now- C. — Dw -Ew or
E+nnwour,e Iwo NayFlw RFap"RM
NCG020000 JAN 12 2015
NOTICE OF INTENT LAND QUALITY
MINING PROGRAM
FOR AGENCY USE ONLY
Date Received
Year
Month
Day
Certificate of CoverMe
2
Check
Amon t
Permit Asskhedto
a
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG020000:
STORMWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code -14XX Mineral Mining Industry (except as specified below)
The following activities are also included:
• Active or inactive mining operations (including borrow pits —except for NCDOT 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 (wastewater)
The following activities are specifically excluded from coverage under this General Permit:
• Stormwater discharges associated with peat mining, coal mining, and metal mining;
• Stormwater discharges from mining operations which are intermixed on site with stormwater from asphalt
operations and/or concrete operations;
• Stormwater discharges associated with oil and gas extraction operations; and
• Stormwater discharges associated with tourist gem mines
• NCDOT borrow pits are covered under NCS000150
The following discharges are covered by NPDES general permit NCG520000 instead of NCG020000:
Point source discharges of stormwater and wastewater from in -stream sand mining operations (i.e., sand
dredging or dipping operations).
Please contact the NPDES Wastewater Point -Source Group for more information on coverage under this
permit.
Please print or tyj2e all entries in this application form.
1) Mauling address of owner/operator (official address to which all permit correspondence will be mailed):
Legal Owner Name Sawmill Land and Sand, LLC
(Attach the most recent Annual Report to the NC Secretary of State showing the current legal name of the corporation or entity.
Alternatively this permit can be given to an individual or government authority. This name must be the same name as appears on the
Division of Land Resources' Mining Permit.)
Signee's Name (as signed for in permit signature at bottom)
Street Address
City
Telephone No.
5014 Northwest Road
Riegelwood
[phone]
Alternate Contact Name
Alternate Contact Telephone (if different)
Charles L Carroll
State NC _ ZIP Code 28456
Email slsand140gmaillcom
Email (if different)
Page 1 of 8
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` NOG020000 N.O.I.
2) Location of facility producing discharge:
Facility Name Sawmill Land and Sand Mine
Facility Street Address Sawmill Road NW
Facility City Northwest State NC _ ZIP Code 28451
Facility County Brunswick
Facility Contact Charles Carroll
Telephone No. [phone]
Contact E-mail [e-mail]
3) Physical Location Information:
Fax:
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). From the intersection of US 74 and NC 87, turn right onto
Northwest Road_ Travel_ 1.1 miles then take a right onto Saw Mill Rd NE. Site entrance 0.2 miles on right._
4) Latitude 341 17' 59.64 " Longitude -780 8' 43.80 " (degrees, minutes, seconds)
Permits:
5) This NPDES Permit Application applies to which of the following:
❑ New or Proposed Facility Date operation is to begin:
X Existing Date began mining: February 2014
6) 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 4 2
7) Provide a narrative description of the types of minerals mined at this facility:
Sand, clay, marl
8) Is this mine an inactive mine site?
X No
❑ Yes If yes, do you posses an "Inactive Renewal" from DEMLR and notified the DWQ Regional Office or
have you certified to the DWQ that the site has been stabilized? ❑ No ❑ Yes
9) Does this facility already have a valid Mining Permit from the Division of Energy, Mineral and Land Resources
(DEMLR) [formerly DLR]?
❑ No
X Yes
If No, please indicate the status of the Mining Permit application:
If yes, please provide the Mining Permit number: 10-90 Please also
provide a copy of your DEMLR Mining Permit with this DWQ application.
Note: DWQ cannot issue a COC for the NCG020000 General Permit until a Mining Permit is issued or
renewed by the DEMLR.
10) Does this facility have any other NPDES permits?
X No
❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility:
Page 2 of 8
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NCG020000 N.O.I.
11) Are you applying for a mining permit in the same location as a previously permitted mine?
X No
❑ Yes If yes, specify permit number and name if known:
12) Does this facility have any Non -Discharge permits (ex: recycle permits)?
X No
❑ Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility:
13) Does total area of this mine site include ready -mix and asphalt areas?
X No
❑ Yes
If yes, do they have DWQ stormwater permits (if owned by the same company)? ❑ No
(provide permit number )
If not owned by the same company, who is the owner?
14) Will this mining operation precede development activities at this site?
X No
❑ Yes
❑ Yes
15) Is this mine located within one of the 20 Coastal Counties and will it add more than 10,000 ft2 of impervious
surface?
X No
❑ Yes If yes, you may be required to apply for an additional state stormwater permit. Check with your
focal Regional Office. See contact information and checklist below.
16) Is this mine located the Neuse, Tar -Pamlico, or Catawba River Basins, or the Randleman or Jordan
Water supply Watersheds?
X No
❑ Yes If yes, what size stream buffers are included on site? ft. Please show buffers in site plans.
If yes, please include information and plans showing diffuse flow through buffers as required.
Discharge Points, Receiving Waters & Wetlands:
17) Receiving waters:
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? Rattlesnake Branch
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e,g. City of Raleigh municipal storm sewer).
Receiving water classification (if known): C; Sw
Note: Discharge of industrial wastewater to receiving waters classified as WS-II to WS-V, or SA, must
be approved by the Div. of Water Resources, or Div. of Marine Fisheries. If DWR or DMF does
not approve, coverage under NCG020000 cannot be granted. No new discharges of wastewater
are permitted in receiving waters classified as WS-1 or freshwater ORW. Wastewater
discharges to Saltwater ORW will not be approved under the NCG02 General Permit.
18) If your facility has wastewater discharges and they are to WWQ and/or PNA waters (Primary Nursery Areas)
waters, what is the proposed flow rate? N/A (See
http://www.ncdmf,net/maps/FNA_maps/index.html, for map)
Page 3 of 8
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NCG020000 N.0.1.
19) Discharge Points:
Number of discharge points (ditches, pipes, channels, etc. that convey discharges from the property):
Onsite: Stormwater: Mine dewatering: 1 _ Process Wastewater Overflow:
Offsite: Stormwater: Mine dewatering: Process Wastewater Overflow:
Discharge points should be clearly marked on the submitted site plan.
Please provide short narrative description of discharges: When the mining excavation extends below the .
water table. water will be oumoed from the surface of the standina water to a 3.5' deer) stilling basin. The
stillinq basin is designed to hold 100,000 gallons per day of water. The basin is lined with filter fabric for
stabilization and has 3 porous baffles. The inlet and outlet for the basin are rip -rap lined to prevent scouring.
The discharge point is a minimum 400' from receiving wetlands. T
a) Is your mine dewatering and discharging? (Answer only if you are dewatering)
❑ No
X Yes If yes, where to? X Surface Waters and/or Wetlands (on -site or off -site)
Other (on -site or off -site) Describe:
b) Are you dewatering but not discharging? (Answer only if you are dewatering)
X No
❑ Yes If Yes, please explain how you are dewatering, and where that water will be directed:
20) Will mining operations require dewatering near wetlands or impact any stream, groundwater, or wetlands?
❑ No
X Yes
Note: Wetlands must be CLEARLY DELINEATED on the site plan. Mine dewatering activities that have
the potential to drain wetlands or otherwise impact surface water or groundwater MUST develop and
implement a Pumping Operation and Monitoring (O&M) Plan that has been approved by the
Division.
For sites that may drain wetlands — approval of a Pumping O&M plan may be required prior to
coverage under this general permit. The Pumping O&M Plan should be submitted to the
appropriate Regional Office and must be approved prior to operation.
The plan shall include, but is not limited to: (1) Groundwater monitoring strategies to demonstrate the
effect of pumping and to establish any pumping regime necessary to reduce impacts, and (2) Detailed
plans to maintain surrounding hydrology and respective monitoring to demonstrate compliance. See
checklist at end of document. Contact your local Regional Office for questions specific to your mine.
21) If you are dewatering, are there wetlands or surface waters within 400' of the mine pit perimeter?
❑ No
X Yes If yes, what distance are they from the mine pit perimeter? 50 feet.
22) Have you been required to obtain a 404/401 Certification permits?
X No
❑ Yes If yes, please briefly describe below (include information such a required mitigation, BMPs, setbacks,
and/or O&M plans for on or off -site wetlands or other pertinent information). Attach other sheets as necessary:
Page 4 of 8
5WU-NCG02-NOI Last revised 9/5/2012

NCG020000 N.O.I.
23) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
❑ No X Yes If yes, please attach to application submission.
Stormwater BMPs:
24) Does this facility employ any best management practices for stormwater control?
❑ No X Yes If yes, please briefly describe: All water that does not maintain positive
Drainage into the mining excavation, is directed to sediment basins designed per NCDENR Sediment
Control Planning and design manual
25) Does this facility have a Stormwater Pollution Prevention Plan?
X No ❑ Yes
If yes, when was it implemented? -
26) Will vehicle maintenance activities occur at this facility?
X No ❑ Yes
Wastewater Treatment Facilities:
27) Will mine dewatering discharges occur?
❑ No
X Yes
28) Will discharges of overflows from process wastewater treatment systems occur?
X No
❑ Yes If yes,
a. Does this facility employ chemical additives to flocculate suspended solids? X No ❑ Yes
If yes, please state the name, manufacturer and the quantity of average daily usage of the chemical additive
Vote: Please see our website for a list of evaluated polyacrylamide (PAMS) products for use in North Carolina:
http://portal.ncdenr.org/web/wg/ws/sU/n d` s
b. Does this facility overflow only during rainfall events exceeding the 10-yr, 24-hr rainfall event?
❑ No ❑ Yes
29) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
X No
❑ Yes
30) Is your facility washing mined materials?
X No
❑ Yes If Yes, are you discharging this water?
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NCG020000 N.O.I.
Other:
31) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
X No ❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
X No ❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
X No ❑ Yes
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 / disposal vendor: _
Vendor address:
32) Is your facility providing appropriate secondary containment for bulk storage of liquid materials? See permit
text for secondary containment requirements.
X No
❑ Yes
33) Does your site have an active landfill within the mining permit boundary?
X No
❑ Yes If yes, specify type: ❑ LCID ❑ Other:
Final Checklist:
This application will be returned as incomplete unless all of the following items have been included and
initialed for. Please show that the following required information has been included by initialing in each
pbelow.
;Face Fee of $100 made payable to NCDENR.
Completed application and all supporting documents.
7 Copy of the valid approved mining permit (MP) for the facility or indication of MP application status.
Copy of a county map or other general location map that shows the mining site and nearest major roads.
Copy of USGS topographic map showing the mining site and surrounding areas, or other map that clearly
shows site location in relation to nearby streams, wetlands, and other waters, etc.
2 copies of large-scale (minimum 24" x 36") site plan with topographical lines with all outfalls, applicable
buffers and wetlands clearly delineated, and 100-year flood plain line if applicable.
A copy of your DEMLR mining permit.
A copy of your US Army Corps -approved wetland delineation if you marked "yes" to question 23 above.
A line drawing of the water flow through the facility. A pictorial description of the nature and amount of any
sources of water and any collection and treatment measures.
If mine site is in one of the 20 Coastal Counties:
• Applicant has checked with the appropriate regional office to verify the need for a Coastal State
Stormwater permit. Regional Office Contact: Linda Lewis
Page 6 of 8
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14CG020000 N.O.I.
• Applicant has included a detailed list of impervious surface areas and percentages, sub -drainage
areas and total drainage area.
If the mine is dewatering and near wetlands, or may otherwise impact surface waters or groundwater,
Include the following and contact your local regional office about a Pumping O&M Plan (see below
for contact information). You maV be required to provide an approved Pumping O&M plan prior to
NC,G02 issuance. � ()tj PLAN StTF C _S09 ,
�22 copies of detailed Full Size Plans (at least 24" x 36") delineating areas on the plans and listing
acreage (including: wetlands, ditches, well -placements, pits, borrow areas, overburden storage,
stormwater controls/BMPs, vehicle maintenance areas, settling basins, product process (such as
screening, stockpiles, waste piles), total drainage area, impervious surface percentages (if state sw
fiprograms apply), applicable buffers, and access and/or haul roads).
Pump dewatering size and information on its specifications.
Well information (design, depths, maintenance).
Physical monitoring for the wetlands areas.
Settling pond sizing information, if applicable.
:Nk Level spreader design, if applicable.
� Details about dewatering method.
Cone of influence calculations.
`-i% Description of measures to prevent erosion and flooding. 17
Description & information about 4011404 permits that have been obtained. j
Copy of US Army Corps of Engineers wetland delineations or approved wetland delineation (if
applicable).
I have contacted my local regional office about a Pumping O&M Plan.
Regional Office Contact: C'EQe Cc) Lk.,L)Ak j Date contacted: SITE V iS f 1 � I7 Rq'! y
-OR-
I will not any impact nearby wetlands, surface waters or groundwater by dewatering.
Certification: North Carolina General Statute 143-215.6 b (1) 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 this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fad in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to
exceed ten thousand dollars ($10,000).
33) Signatory Requirements (per 40 CFR 122.22)
All applications, reports, or information submitted to the Director shall be signed and certified.
a. All notices of intent to be covered under this General Permit shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this permit, a responsible corporate officer means: (a) a president,
secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar
policy or decision making functions for the corporation, or (b) the manager of one or more manufacturing production or operating facilities
employing more than 250 persons or having gross annual sales or expenditures exceeding 25 million (in second quarter 1980 dollars), if
authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official.
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. 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.
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NCG020000 N.O.I.
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.
I 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 Name of Person Signing: G}-iAKLES L C_Ae R0LL
Title: 6A AQ &6, I NC Me N\66
(Signature of Applicant)
(Date' gned)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to NCDENR.
Mail the entire package to:
Stormwater and General Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the issuance of an NPDES permit.
For questions, please contact the DWQ Regional Office for your area.
DWQ Regional Office Contact Information:
Asheville Office ...... [phone]
Fayetteville Office ...
[phone]
Mooresville Office ...
[phone]
Raleigh Office ........
[phone]
Washington Office
...[phone]
Wilmington Office ...
[phone]
Winston-Salem ......
[phone]
Central Office .........
[phone]
Page 8 of 8
SWU-NCG02-NOI Last revised 9/5/2012

Pumping Operation & Maintenance Plan
For
SAWMILL LAND AND SAND MINE
Northwest, North Carolina
Prepared for
SAWMILL LAND AND SAND, LLC
Date: May 1, 2015
`,`1�1111111CA111 ////�ri
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� �-it its:
Prepared by
Cape Fear Engineering, Inc.
151 Poole Road, Suite 100
Belville, NC 28451
[phone]
NC License No. C-1621
41

0
1. INTRODUCTION
Sawmill Land and Sand Mine is an existing mine site, Mining Permit No. 10-90, issued
October 25, 2013. Mining operations began at the existing mine site in February 2014.
The permitted acreage atz'the site is.55.94 acres, and the amount of land approyed.to be
disturbed is 44.25 acres. The site is located off Sawmill Road (SR 1425), in Northwest,
Brunswick County. The materials permitted to be mined are sand, clay and marl by
shovel and truck, The expected average depth of the site is 28 feet, with a maximum
depth of 42 feet. All areas within 500 feet of the mining excavation are served by
Northwest Municipal Water System.
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A jurisdictional deteiriiination was approved by the US Army Corps 4 Engineers (the
Corps) on 06/01/09 (SAW-2008-02120). The applicant is currently coordinating with the
Corps to renew this determination.
On February 19, 2015 the permit was modified to include dewatering activities to manage
the mining pit when the excavation extends below the water table. The mining site is
located adjacent to wetlands. The North Carolina Administrative Code includes Wetland
Standards, 15A NCAC 02B.0231(b)(5), requiring that, "Hydrologic conditions necessary
to support the biological and physical characteristics naturally pr'esebt in wetlands shall
be protected to prevent adverse impacts". This Pumping Operation and Maintenance
Plan (O&M Plan) been developed to ensure compliance with the Administrative Code.
2: SITE PLANS
Site Plans are enclosed in Appendix A, and provide the following information:
US Army Corps of Engineers approved Welland Survey
- Wetland delineation
- Schedule of calls along the wetland limit• .
- List of acreage of wetlands and uplands
Mining Map
Wetland Limits with minimum 50' undisturbed buffer from all wetlands
- Existing and Proposed Contour Elevations
- Stockpiles and Waste piles
- Diversions and Sediment Basins
Access/Haul Road
- Pump Location Pump Stilling Basin
Dewatering Details
- Stilling Basin Dimensions and Details
- Construction Specifications and Maintenance for Stilling Basin
- Dewatering Notes

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4' .
I. PUMP DEWATERING SIZE AND INFORMATION ON ITS
SPECIFICATIONS
It is anticipated that a maximum of 100,000 gallons a day will be pumped during mining
excavations, using a 4" pump with a maximum pumping capacity of 450 GPM (gallons
per minute).
2. PHYSICAL MONITORING FOR THE WETLAND AREAS
Groundwater monitoring strategies must be used to demonstrate the effect of pumping
does not impact the wetland hydrology. Visual inspections shall be performed quarterly.
Visual inspections shall include observation of wetland characteristics, surface water
elevation, and soil saturation. Any apparent adverse changes of characteristics shall be
immediately communicated with the North Carolina Department of Environment -and'
Natural Resources (DENR) Wilmington Regional Office. All pumping operations shall
cease until the Regional Office can conduct a field visit to evaluate the site conditions. In
addition, the Mine Operator may choose to retain a Professional Soil Scientist licensed in
the State 'of North Carolina to perform a site visit and evaluate the area using the Corps
Wetland Hydrology Indicators,
3. SETTLING POND SIZING INFORMATION
A stilling basin has been designed to hold 100,000 gallons, which exceeds the required
425 SF of surface area for the maximum pumping capacity. Rip -rap protection will be
installed at the pump discharge point into the basin, and at the outlet weir, to prevent
scouring.
4. LEVEL SPREADER DESIGN
A level spreader is not proposed for this design since the stilling basin is sized in excess
of the required 425 SF of surface area for the maximum pumping capacity.
S. DETAILS ABOUT DEWATERING METHOD
Pumping operations will be limited to mine operating hours of the facility. All water
shall be pumped from the surface of the standing water in the mine excavation and shall
be directed to a proposed stilling basin prior to discharge. The pump will be placed in the
mining excavation greater than 400' from adjacent wetlands.
The receiving stream for the dewatering discharge is Rattlesnake Branch, water
classification C; Sw. The wetland areas are upgradient to Rattlesnake Branch, therefore
it is expected that all pumped water will recharge the wetlands, maintaining their
hydrology.

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6. DESCRIPTION OF MEASURE TO PREVENT EROSION AND FLOODING
All development will be in accordance to the Best Management Practices and the North
Carolina Erosion and Sediment Control Planning and Design Manual. These measures
include temporary diversions, temporary sediment basins and a stilling basin..
The stilling basin shall remain until all pumping operations are complete. The pump
location and stilling, basiWare within• the permitted mine boundary, and can be mined
upon completion of pumping operations.

APPENDIX A
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