HomeMy WebLinkAboutNCG020904_COMPLETE FILE - HISTORICAL_20161214PERMIT NO.
DOC TYPE
DOC DATE
STORMWATER DIVISION CODING SHEET
NCG PERMITS
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❑ MONITORING REPORTS
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Permit Number NCG020904
Central Files: APS _ SWP _
12/12/2016
Permit Tracking Slip
Program Category
Status Project Type
NPDES SW
In review New Project
Permit Type
Version Permit Classification
Mining Activities Stormwater Discharge COC
REV EIS ED
CDC
Primary Reviewer
16
Permit Contact Affiliation
nck.riddie
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Coastal SWRuIe
CENTRAL FILES
^WR SECTION
Permitted Flow
Facility
Facility Name
Major/Minor
Region
River Farms Mine
Minor
Washington
Location Address
County
Harvey Point Rd
Perquimans
Facility Contact Affiliation
Hertford NC 27944
Timothy J. Corprew
910 Wynne Fork Rd
Owner
Hertford
NC 27944
Owner Name
Owner Type
River Farms LLC
Non -Government
Owner Affiliation
Timothy J. Corprew
910 Wynne Fork Rd
Dates/Events
Hertford
NC 27944
Scheduled
Orig Issue App Received Draft Initiated
Issuance Public Notice Issue Effective Expiration
6/24/2016
Regulated Activities
Requested /Received Events
Mining activities - stormwater discharges
RO staff report received
12/12/16
RO staff report requested
7/13/16
Outfall 1
Waterbody Name
Streamindex Number Current Class
Subbasin
Perquimans River
30-6-(7) SB
03-01-52
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Timothy J. Corprew
River Farms, LLC
910 Wynne Fork Road
Hertford, NC 27944
Dear Mr. Corprew:
December 12, 2016
PAT MCCRORY
Grvemur
DONALD R. VAN DER VAART
Secretory'
TRACY DAVIS
Areeter
Subject: General Permit No. NCG020000
River Farms Mine
COC NCG020904
Perquimans County
In accordance with your application for a discharge permit received on June 24, 2016, 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 have an approved Operation and Monitoring Plan before mine dewatering
discharges occur at your facility. Discharging mine dewatering wastewater without Plan approval will
be subject to enforcement action.
Please note that mine dewatering wastewater includes wet pit overflows caused solely by direct rainfall
and groundwater seepage for this type of mining operation. Any discharge of this water (and any
stormwater commingled with it) is subject to the effluent limitations in this permit.
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
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1 512 North Salisbury Street I Raleigh, NC 27699-1612
919 707 9200 T
dewatering water), you will be required to adhere to the conditions in this permit for stormwater
discharges.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Energy, Mining, and Land 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
(919)807-6375.
Sincerely,
for Tracy E. Davis, P.E., CPM
cc: Washington Regional Office
Central Files
Stormwater Permitting Program Files
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STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG020000
CERTIFICATE OF COVERAGE No. NCG020904
STORMWATER AND MINE DEWATERING DISCHARGES
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,
Timothy J. Corprew/River Farms, LLC
is hereby authorized to discharge stormwater and mine dewatering-from a facility located at
River Farms Mine
Harvey Point Road
Hertford
Perquimans County
to receiving waters designated as Perquimans River, a class SB water in the Pasquotank River
Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions
set forth in Parts I, II, III, IV, and V of General Permit No. NCG020000 as attached.
This certificate of coverage shall become effective December 12, 2016.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day December 12, 2016.
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission
NCG020904
Map Scale 1:24,000
Timothy ]. Corprew/River Farms, LLC
River Farms Mine
Latitude: 360 10' 42" N
Longitude: -760 27' 22" W
County: Perquimans
Receiving Stream: Perquiman River
Stream Class: SB
Index Number: 30-6-(7) (Pasquotank River Basin)
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Division of Energy, Mineral and Land Resources / 11
Land Quality Section — Stormwater Permitting Program G ,,;,; ,„
National Pollutant Discharge Elimination System
NCG020000
NOTICE OF INTENT — General Permit Application
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG020000:
STORMWATER AND/OR WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 14XX Mineral Mining Industry (except as specified below) and
like activities
The following activities are 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 (VMA) 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 concrete
operations;
Stormwater discharges associated with oil and gas extraction operations; and
Stormwater discharges associated with tourist gem mines
NCDOT borrow pits (covered under individual permit 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 (sand dredging
or dipping operations) are covered instead by NPDES General Permit NCG520000, administered by the Division
of Water Resources NPDES Wastewater Permitting Program. Please contact DWR for more information.
Please print or type all entries in this application form.
1) Mailing address of owner/operator (official address to which all permit correspondence will be mailed):
Legal Owner Name Timothy J. Corprew / River Farms, 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 bathe same name as appears on the
Division of Energy, Mineral, and Land Resources' Mining Permit.)
Signee's Name (as signed for in question 41. at end) Timothy J. Corprew
Street Address 910 Wynne Fork Road
City Hertford
Telephone No. 252 340-2523
State NC ZIP Code 27944
E-mail tjcorprew@hotmail.com
Alternate Contact Name' E-mail (if different)
Alternate Contact Telephone (if different)
'Alternate contact should be affiliated with the Owner/Operator. Consultant information can be provided
in question 5.
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/'
NCG020000 N.O.I.
2) Location of facility producing discharge:
Facility Name
River Farms Mine
Facility Street Address
Harvey Point Road
Facility City
Hertford State NC ZIP Code 27944
Facility County
Perquimans County
Facility Contact
Timothy J. Corprew
Telephone No.
252 340-2523 Fax:
Contact E-mail
ljcorprew@hotmail.com
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). In Hertford, US 17 (Ocean Highway South) at stop light,
turn south on SR 1336 Harvey Point Road, mine entrance is 0.23-mile on the left.
4) Facility Location Coordinates:
Latitude 36.178433 deg N Longitude -76.456229deg W (degrees / minutes / seconds or decimal
degrees)
5) Consultant Information (if applicable):
Consultant: Ken Elliott
Consulting Firm: Elliott Consulting
Mailing Address: PO Box 112
City:. Aydlett
State: NC Zip Code: 27916
Phone:( 252 ) 339-9021 Fax: 8( 88 ) 637-6241
E-mail:
Permits:
6) This NPDES Permit Application applies to which of the following:
(Optional)
Staple Business Card Here
Q New or Proposed Facility Date operation is to begin: July 2016
❑ Existing Date began mining:
7) 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
8) Provide a description of the types of minerals mined at this facility: Sand & topsoil
9) Is this a PROCESSING -ONLY facility for materials mined elsewhere? Q No ❑ Yes
10) Is this an inactive mine site?
0 No
❑ Yes . If yes, have you certified to the Stormwater Permitting Program that all portions of the site where
clearing, grading, and/or excavation activities have occurred have been stabilized?
❑ No ❑ Yes (If yes, the site may be eligible for "Dormant Status' and reduced BMP
inspections. See the General Permit.)
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NCG020000 N.O.I.
11) Does this facility already have a valid Mining Permit from DEMLR's Land Quality Section?
Q No If no, please indicate the status of the Mining Permit application: Application submitted June 2016
❑ Yes If yes, please provide the Mining Permit number: Also provide a copy of
the DEMLR Mining Permit with this NPDES application.
12) Does this facility have any other NPDES permits?
Q No
❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility:
13) Are you applying for a discharge permit in the same location as a previously permitted mine?
0 No
❑ Yes If yes, specify permit number and mine name if known:
14) Does this facility have any Non -Discharge permits from DWR (e.g., recycle permits)?
Q No
❑ Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility:
15) Does total area of this mine site include ready -mixed concrete plant and/or asphalt plant areas?
0 No
❑ Yes If yes, do they have separate NPDES stormwater permits? O No ❑ Yes (provide permit
number(s) )
If not owned by the same company, who is the owner?
Development Activities and Buffers:
16) Will this mining operation precede development activities at this site?
No
❑ Yes
17) Is this mine located within one of the 20 Coastal Counties, and will it add more than 10,000 ftz of
impervious surface?
❑ Yes (to both)
No, this mine site IS in one of the 20 Coastal Counties but will NOT add 10,000 ftz of impervious surface.
❑ No, this mine site is NOT in any of the 20 Coastal Counties.
If this site is in one of the 20 Coastal Counties, you may be required to apply for an additional State
Stormwater Permit. Check with your local Regional Office (see contact information and checklist below).
18) Is this mine located the Neuse, Tar -Pamlico, or Catawba River Basins, or the Randleman or Jordan
Water supply Watersheds?
Q No
❑ Yes If yes, what size stream buffers are included on site? ft. You must show buffers on site
plans. Also include information and plans showing diffuse flow through buffers as required.
Page 3 of 12
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NCG020000 N.O.I.
Discharge Points, Receiving Waters & Wetlands:
19) 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 will end up in? Perquimans River
To find the waterbody, please see the "MAPS" tab on http://portal.ncdenr.org/web/wq for a map of NC
Surface Waterbody Classifications.
Panaivinn lento Hnccifi alinnfcl fnr the ,e,ntcrc SC
If the site will discharge to a separate storm sewer system, name the operator of the separate storm sewer
system (e.g. City of Raleigh municipal storm sewer).
Discharge of wastewater to receiving waters classified as WS-11 through WS-V, or SA, must be
approved by the Division of Water Resources (DWR) or Division of Marine Fisheries
(DMF). DEMLR cannot grant coverage under NCG020000 without that approval. Also be advised that
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 General Permit
NCG02 but may be eligible for an individual permit.
20) Will this mine site discharge wastewater or stormwater to waters classified as High Quality Waters
(HOW), Primary Nursery Areas (PNA), Trout (Tr) waters, or a class with a symbol like "+" or "@" that
denotes a special management strategy is in place?
BNo Yes, HQW' ❑ Yes, includes 4" or
Yes, PNA' Yes, Trout jr)
21) Will this mine site discharge wastewater or stormwater to waters classified as Shellfish (SA) waters?
0 No
❑ Yes, SA -
'For questions 19-20, be advised that the NCG02 General Permit limits the discharge volume of total combined
wastewaters to 50 percent of the receiving water in -stream flow under 7Q10 conditions in HQW waters (PNA and
SA waters are considered HQW by definition). You may be required to contact USGS to obtain a 7Q10 flow.
22) Will this mine site discharge wastewater or stormwater to impaired waters, or to waters with an
approved "Total Maximum Daily Load" (TMDL)?
To find impaired waters, please see the "Impaired Waters" map on the "MAPS" tab on
http://portal.ncdenr.org/web/wq.
To find approved TMDLs in North Carolina, please see DWR's Water Planning Section website;
http://portal.ncdenr.org/web/wq/ps/mtu/tmdl/tmdls.
0 No
❑ Yes, these waters are impaired for (list pollutants):
❑ Yes, these waters have a TMDL for (list pollutants):
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23) List discharge points (outfalls) that convey discharge from the mine site (both on -site and off -site) and
location coordinates. Attach additional sheets if necessary, or note that this information is specified
on the site plan. Include proposed maximum daily flow rate for each wastewater outtall.
You must show all discharge points clearly on the submitted site plan. Be advised
that NCDEQ may require you to apply for an individual permit, based on proposed
discharge rates and receiving stream conditions (low flows, impairments, etc.)
Stormwater
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
StormwaterOutfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Mine Dewatering
Mine Dewatering (Wastewater) Outfall No. 1-North
Proposed maximum flow rate: 0.10 mgd
Latitude (degrees/minutes/seconds or decimal degrees): 36.179283 deg
N
Longitude (degrees/minutes/seconds or decimal degrees): -76.458243 deg
W
Mine Dewatering (Wastewater) Outfall No. 2-South
Proposed maximum flow rate: 0.10 mgd
Latitude (degrees/minutes/seconds or decimal degrees): 36.176437 deg
N
Longitude (degrees/minutes/seconds or decimal degrees): -76.456105 deg
W
Process Wastewater
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
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NCG020000 N.O.I.
24) Help us understand what will happen to the dewatering water at this mine site:
❑ N/A — this mine is not dewatering at all and will not dewater in the future.
a) Will this mine be dewatering and discharging to waters of the state? (Answer only if dewatering)
❑ No
Q Yes If yes, where to? 0 Surface Waters and/or Wetlands (on -site or off -site)
❑ Other (on -site or off -site) Describe:
b) Will this mine be dewatering but not discharging to waters of the state? (Answer only if dewatering)
0 No
❑ Yes If yes, explain how you are dewatering, and where that water will be directed:
25) Are there wetlands or surface waters within 400' of the mine pit perimeter?
❑ No
0 Yes If yes, what distance are they from the mine pit perimeter? 100 feet.
26) Will mining operations require dewatering near wetlands or other waterbodies, and will dewatering
potentially impact any wetlands or other waterbodies?
❑ No, dewatering will not occur near (within 400') of wetlands or other waterbodies (e.g., streams, lake, etc.)
0 Yes, dewatering will be near wetlands or other waterbodies
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 (POM) Plan that has been approved by the
Department.
For sites that may drain wetlands — approval of a POM Plan may be required prior to coverage under
this permit. The POM Plan should be submitted to the appropriate Regional Office and in all cases 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 the end of the
application. Contact the Regional Office for questions specific to your mine.
27) Have you been required to obtain 404/401 Certification permits?
0 No
❑ Yes If yes, please briefly describe below (include information such a required mitigation, BMPs,
setbacks, and/or 0&M plans for on or off -site wetlands or other pertinent information). Attach other sheets as
necessary:
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NCG020000 N.O.I.
28) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
ENO ❑ Yes If yes, please attach to application submission.
Stormwater BMPs and Vehicle Maintenance:
29) Does this facility employ best management practices for stormwater control?
Q No ❑ Yes If yes, please briefly describe:
No impervious surface on site.
No impervious surface on site.
30) Does this facility have a Stormwater Pollution Prevention Plan?
ENO ❑ Yes If yes, when was it implemented?.
31) Are vehicle maintenance activities (VMA) occurring or planned at this mine site?
ENO ❑Yes, If es, will VMA area runoff discharge into the wastewater treatment system(s)?
No, VMA runoff will discharge separately through a stormwater outfall
Yes, VMA runoff will drain back to the mine pit or other wastewater system
Wastewater Treatment Facilities:
32) Will mine dewatering occur? (Yes, we are asking about dewatering again.)
No
Yes If yes, will the mine discharge this water?
33) Will this facility wash mined materials?
B No
Yes If yes, will the mine discharge this water?
Yes
34) Will discharges of process wastewater treatment systems occur (including possible recycle system
overflows)?
e No
Yes If yes, describe what kind of systems:
35) Will this facility employ chemical additives to flocculate suspended solids?
No
Yes If yes, provide the name, manufacturer, and the quantity of average daily usage of the chemical
additive (if known):
Note: Please see our website for a list of evaluated polyacrylamide (PAMS) products for use in North
Carolina: http://portal.ncdenr.org/web/ir/construction-stormwater
36) Will any of the wastewater treatment facilities at this mine overflow only during rainfall events that
exceed the 10-yr, 24-hr rainfall event?
❑ Yes If yes, which treatment systems are those?
Q No, all wastewater treatment facilities will discharge more frequently (i.e., during smaller rain events)
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37) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
No
❑ Yes
AI 38) A wastewater treatment alternatives review is required by 15A NCAC 2H.0105 (c)(2)
for any new or expanding water pollution control facility discharges in North Carolina. You may
attach additional sheets. List the types of wastewater this mine site will discharge:
0 Mine Dewatering
❑ Process Wastewater (such as washing or recycle system overflows, other mining activity wastewater)
a) What wastewaters were considered for this alternatives review? 0 Dewatering ❑ Process WW
b) Connection to a Municipal or Regional Sewer Collection System:
i) Are there existing sewer lines within a one -mile radius? ..................................... Q Yes ❑ No
(1) If Yes, will the wastewater treatment plant (WWTP) accept the wastewater? .... ❑ Yes tJ No
(a) If No, please attach a letter documenting that the WWTP will not accept the wastewater.
(b) If Yes, is it feasible to connect to the WWTP? Why or why not?'
Not feasible because of cost of installation
Not feasible because of cost of installation
c) Closed -loop Recycle System (meets design requirements of 15A NCAC 2T .1000):
i) Are you already proposing a closed -loop recycle system (CLRS)? ......................... ❑ Yes Q No
(1) If Yes, for what type of wastewater at this mine site? 0 Dewatering ❑ Process WW
(2) If No, is this option technologically feasible (possible)? Why or why not?' ......°
Not feasible because of cost of installation
(3) If No, is it otherwise feasible to build a CLRS at this site? Why or why not?' ........ " °'.'°"""'°°"""
Not feasible because of cost of installation
(4) What is the feasibility of building a CLRS compared to direct surface water discharge?'
Not feasible.
d) Surface or Subsurface Disposal System (e.g., spray irrigation):
i) Is a surface or subsurface disposal technologically feasible (possible)? ..................... ❑° Yes ❑ No
Why or Why not?'
Simple o implement spray irrigationtechnologically operator as a room urr—
arm on premises to use it.
ii) Is a surface or subsurface disposal system otherwise feasible to implement?*............ 0 Yes ❑ No
Why or Why not?'
Simp e o imp emen , operator has equipment and turf
arm on premises to use it.
Page 8 of 12
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NCG020000 N.O.I.
iii) What is the feasibility of employing a subsurface or surface discharge as compared to a direct
discharge to surface waters?'
Very feasible at start of mining, less so at end. Spray irrigation will no
be enough to dewater 3 -acre excavation. Operator plans to use direct discharge as primary and spray irrigation upon need for
turt tarm.
e) Direct Discharge to Surface Waters: Is discharge to surface waters the most environmentally sound
alternative of all reasonably cost-effective options for the wastewaters being considered?'
0 Yes ❑ No
f) If this review included all wastewater discharge types, would excluding some types (e.g. mine
dewatering) make any of the above non -discharge options feasible for some of the wastewaters?
❑ Yes 0 No
Feasibility should take into account initial and recurring costs. You may be asked to provide
further information to support your answers to these questions after the initial review.
Other:
39) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
0 No ❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
Q No ❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
B 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:
40) Is your facility providing appropriate secondary containment for bulk storage of liquid materials? (See
permit text for secondary containment requirements.)
No
❑ Yes
41) Does your site have an active landfill within the mining permit boundary?
Q No
❑ Yes If yes, specify type: ❑ LCID (Land Clearing and Inert Debris) ❑ Other:
Page 9 of 12
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Final Checklist:
t This application will be returned as incomplete unless all of the following items have been included and
1 initialed for. Please show that the following required information has been included by initialing in each
space below.
X Fee of $100 made payable to NCDEQ.
X Completed application and all supporting documents.
x Copy of the valid approved mining permit (MP) for the facility or indication of MP application status.
X Copy of a county map or other general location map that shows the mining site and nearest major roads.
X 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.
x 2 copies of large-scale (minimum 24" x 36") site plan with topographical lines with
all outfalls, applicable buffers and wetlands clearly delineated, receiving waters, and
100-year flood plain line if applicable.
A copy of your US Army Corps -approved wetland delineation if you marked 'yes" to question 27 above.
x A line drawing of the water flow through the facility or block flow diagram. A pictorial description of the
nature of any sources of water and any collection and treatment measures.
X 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. Indicate the Regional Office Contact: Thom Edgerton
• Applicant has included a detailed list of impervious surface areas and percentages, sub -drainage
areas, and total drainage area.
X 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 Operation and
Monitoring (POM) Plan. An approved POM plan may be required priorto NCG02 issuance.
x 2 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 programs apply), applicable buffers, and access and/or haul roads).
X Pump dewatering size and information on its specifications.
_Well information (design, depths, maintenance).
X Physical monitoring for the wetlands areas.
X Settling pond sizing information, if applicable.
Level spreader design, if applicable.
X Details about dewatering method.
Cone of influence calculations.
X Description of measures to prevent erosion and flooding.
_Description and information about 401/404 permits that have been obtained.
_Copy of US Army Corps of Engineers wetland delineations or approved wetland delineation (if
applicable).
X I have contacted my local regional office about a POM Plan.
Regional Office Contact: Thom Edgerton Date contacted: June 22, 2016
-OR-
I will not impact any nearby wetlands, surface waters, or groundwaters by dewatering.
Page 10 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
Certification: North Carolina General Statute 143-215.6 b (i) 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 fact 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).
41) 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.)
2. 1 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: Timothy J. Corprew
Title: \Owner -
June 21, 2016
ofApplii l j 0 (Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to NCDEQ.
Page 11 of 12
SW U-NCG02-NOI Last revised 9I10I2015
NCG020000 N.O.I.
Mail the entire package to:
Stormwater Permitting Program
Division of Energy, Mineral and Land Resources
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Note
The submission of this document does not guarantee coverage under the NPDES
NCG02 General Permit. Upon review of the submittal, the Division may
determine that coverage under an individual permit is more appropriate. Also be
advised that renewed and continued coverage under NCG02 may be dependent
upon the permittee's compliance success and/or status of the receiving waters.
For questions, please contact the DEMLR/Land Quality Section Regional Office for your area.
DEMLR/Land Quality Section Regional Office Contact Information:
Asheville Office ......
(828) 296-4500
Fayetteville Office ...
(910) 433-3300
Mooresville Office ...
(704) 663-1699
Raleigh Office ........
(919) 791-4200
Washington Office ...(252)
946-6481
Wilmington Office ...
(910) 796-7215
Winston-Salem ......
(336) 776-9800
Central Office .........(919)
707-9220
Page 12 of 12
SWU-NCG02-NOI Last revised 9/10/2015
OPERATION AND MAINTENANCE PLAN
SAND MINE DEWATERING AND WATER LEVEL CONTROL STRUCTURE
Operator: Timothy J. Corprew, River Farms, LLC, 910 Wynne Fork Road, Hertford, NC 27944
Job Location: River Farms Mine, Harvey Point Road, Hertford, NC 27944
County: Perquimans County
Prepared by: Ken Elliott, consulting
Date: June 22, 2016
This plan defines responsibilities for operating, inspecting, and maintaining equipment and structures
used for constructing and dewatering the River farms Mine safely, and that dewatering will not degrade
or negatively impact any wetlands or waters of the state.
Description and Operation of the River Farms Mine:
The River Farms Mine is a proposed 35.6-acre sand mine excavation operated by River Farms, LLC,
Timothy J. Corprew, owner, in an 83.66-acre permit area located on Harvey Point Road. The site is
approximately .50 miles south of Hertford, NC, in the Town of Hertford Extraterritorial Jurisdiction area.
The permit area is on high sandy land, recently cleared, and currently under cultivation as a turf grass
farm. At this time Mr. Corprew is submitting an application with the NCDEQ Division of Energy, Mineral
and Land Resources to construct the sand mine and begin operation in July 2016. Mr. Corprew is also
submitting an application for a Special Use Permit from the Town of Hertford Planning Department for
construction of this mine.
Sand Mine Dewatering:
It will be necessary to dewater the excavation as it is being excavated to allow the excavating equipment
to enter the excavated area in order to safely and efficiently remove the sand from the pond bottom.
This will allow for full depth excavation and proper reclamation of the edges of the pond. It is the
intention of Mr. Corprew to only dewater the excavations as needed, which will not entail full-time
dewatering.
For excavation purposes, dewatering will occur roughly every 30 days which will allow excavating
equipment to remove approximately 150 loads of sand up to ground level where it will be stockpiled for
later use. When the stockpile is depleted from usage, the excavation area will again be dewatered, and
another quantity of sand will be excavated.
The operator plans to initially excavate two 1.82-acre ponds on the north and south sides of the
excavation area, both being located inside the main excavation area. Initially used as water sources for
the turf farm, the ponds will be later used as sedimentation ponds during the main pond excavation.
The ponds will be constructed with 3:1 slopes above normal groundwater height with full groundcover
installed, and 2:1 slopes below normal groundwater level. Once the small ponds are completed the rest
of the 35.6-acre main excavation will begin between the sediment ponds and the east end of the
excavation area. The edge of the sediment pond excavations and main excavation will be a minimum of
100 feet from the nearest wetlands. Use of the sediment ponds will forcibly hydrate the nearby
wetlands located north and south of the sediment ponds and excavation, and will minimize dehydration
of the swampy land.
The operator will install an 8-inch dewatering pump between the main excavation and the closest
sediment pond. Discharge from the dewatering pump will enter the sediment pond on its east end, and
there will be a constructed water height control device (see attached diagram) discharge point located
on the west end of the sediment pond. The discharge point will release clear water to a 25-foot-long
riprap-protected ditch, which then leads 75 feet to wetlands, then 1200 feet through wetlands to the
Perquimans River.
Water will be pumped from the main pond to the sediment pond by the Bin gasoline -powered transfer
pump operating at idle speed. Operator will utilize one or both sediment ponds and pumps as needed.
Estimated maximum flow from each pump will be 8300 gallons/hour, 0.20 mgd (4150 gallons / hour /
pump). It is the intention of Mr. Corprew to drop the water level in the main pond approximately 20 -
25 feet below normal ground level when needed.
The overflow from the sediment pond will be controlled by a water height control device constructed in
the west bank of the sediment pond in use. This control structure will allow water to flow through the
baffle into a 2Sft long x 15" wide buried PVC pipe leading 25 feet to a 6ft wide drainage ditch running
north or south 75 feet to wetlands and then 1200 feet to the Perquimans River. For erosion control, the
overflow water will exit the water height control discharge pipe onto a 20ft long riprap-lined apron in
the ditch.
Time and distance will allow all sedimentation to occur to acceptable levels in the sediment ponds
before the overflow water reaches outfall and then the waters of the State. Water will have to travel a
minimum of 400 feet in the sediment pond to reach the overflow point, which will give enough surface
area to allow sufficient sedimentation to occur. There will be a minimum 2 feet of freeboard between
the water surface in the sediment pond and the top of the sediment pond bank. Stormwater drainage
will be unable to enter the sediment area due to the height of the sediment pond berm and damaging
sediment pond rates.
Sedimentation and Erosion Control
There is wetland swamp on the north and south side of the proposed excavation, located 100 feet from
the excavation edge, running parallel to the affected area boundary. The operator will establish a 50ft
undisturbed buffer (no disturbance of any kind) between the southwest boundary of the affected area
and the adjacent wetland area. This buffer will be maintained by the operator as pasture with grass and
pine tree ground cover.
In addition, there will be a 50ft unexcavated buffer (may contain roadways, stockpiles, and sediment &
erosion control devices) around the entire excavation area, between the excavation and the
undisturbed buffer.
Sediment pond overflow will drain into a constructed 6ft wide drainage ditch that leads 25 feet to a field
irrigation and drainage ditch, then 75 feet to wetlands and then 1200 to the Perquimans River.
Overflow into the outfall ditch will be stabilized by riprap installed in the ditch at the overflow (see
diagram) to prevent erosion of the ditch.
All erosion and sedimentation will remain inside of the permit area. The operator will construct and
maintain an 8ft wide x 2ft tall grass -covered sand berm around the perimeter of the current affected
area of the excavation during all phases of operation. During mining operations and dewatering, the
majority of the water leaving the excavation will remain inside of the permit area and will only overflow
through the sediment pond occasionally. The sediment pond will be approximately 10 feet deep, and
there is a sand layer below the bottom of the area. The porosity of the soil under the sediment pond
will allow most of the water pumped into the pond from dewatering to seep back into the ground
naturally. Any excess water overflowing from the sediment pond will flow downstream 1200 feet to
wetlands leading to Perquimans River.
Maintaining the Sediment Pond Overflow Control Structure, Settlement Pond and Ditches
Inspections and maintenance are required to obtain the intended function of safely dewatering the sand
mine, and to maintain the life of any adjacent wetlands or waters of the State. Items to inspect and
maintain during the anticipated 10-year life of the mine dewatering permit are:
• Inspect the water control structures regularly, especially following heavy rains and runoff, or
during periods of operation of the structure.
• Remove accumulated debris from the overflow control structure.
• Inspect the structure for excessive settlement or seepage.
• Inspect all components of the structure, including appurtenances, and repair or replace any
damaged items as needed.
• Inspect embankments, berms and appurtenant structures, and repair as needed.
• Repair any damage to vegetated areas or berms with compacted earth fill, reshaping, sodding,
reseeding and mulching as needed.
• Inspect riprap outlet stabilization structures in ditches regularly, replace dislodged rock as
necessary.
• Promptly repair all leaks in delivery facilities by replacing valves, fittings, gaskets, and worn or
damaged parts.
• Maintain all screens, filters, valves, timers and other electrical and mechanical equipment in
good operating condition, following manufacturer's recommendations
Monitoring the Process and Effects of Dewatering
Analytical and qualitative monitoring of mine dewatering wastewater will be in accordance with the
NCG020000 permit, as follows:
• All ponds in the River Farms Mine permit area will be inspected daily by the operator to identify
any abnormal conditions.
• All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches, and all
structures will be repaired immediately.
• Special inspections will be conducted immediately following severe storms, vandalism, and
other significant events.
• Dewatering process will be inspected daily during periods of dewatering the excavation.
• Overflow of wastewater process will be inspected daily during periods of dewatering the
excavation.
• Outflow of dewatering wastewater will be monitored quarterly at the overflow exit stabilization
structure for pH, settleable solids, turbidity, and total flow. Samples will be collected and tested
onsite for pH, and the remainder will be tested for the remaining parameters by a North
Carolina certified lab.
• Rain gauge data will be collected by monitoring rain gauge data monthly and after each rain
event.
Records
Data will be collected as follows:
• Data will be collected from samples taken from the wastewater point source discharge in
operation at the time.
• Point source discharge data: data from the site taken quarterly, date & time, general weather
conditions, pH of sample, status of process at point source, inlet or outlet, other DWQ required
data.
• Visual monitoring of adjacent wetlands and farmland for potential dehydration during mining or
dewatering activities will take place weekly. Solutions to any degradation caused by any mining
activity will include alteration of dewatering process. DWQ will be consulted as needed;
alterations to process will be recorded.
• Elliott Consulting will maintain the following records in a permanent file at the Elliott Consulting
office at PO Box 112, 202 Elliott Road, Aydlett, NC 27916: a record of all significant actions
taken; as -built drawings; permits; analytical results from sampling; and related material. Copies
of all inspections, monitoring reports and lab analyses shall be provided to NCDWQ on a regular
basis and as requested.
BMP Conditions
• The permittee will utilize best management practices to ensure that dewatering the River Farms
Mine will not degrade or negatively impact any wetlands or waters of the State. BMP's will
include:
o Sediment pond outlet structure with flashboard riser located at edge of pond for ease of
maintenance.
o All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches,
and all structures will be repaired immediately.
o Sediment pond outlet ditch will have rock lining or riprap stone layer to prevent erosion,
scour or sloughing of embankment
• The permittee shall obtain authorization from the Director of the NCDEMLR and the Stormwater
Program chief prior to utilizing any chemical flocculants at Robert White Sand Mine.
Signed,
y I_
Ken Elliott
for River Farms, LLC
Timothy J. Corprew, owner
June 22, 2016
JSyv\P\�pP'pJt�
EPA
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N/F
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LONG &
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LONG &
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MINE MAP
RIVER FARMS MINE
HARVEY POINT ROAD
HERTFORD, NC 27944
RIVER FARMS, LLC - OPERAT(
910 WYNNE FORK ROAD
HERTFORD, NC 27944
MAP BY ELLIOTT CONSULTING
JUNE 22, 2016
SCALE: 11N = 20OFT
ACREAGES
EXCAVATION - 36.60 AC
ROADS & PROCESSING - 19.16 AC
STOCKPILES - 4.30 AC
UNEXCAVATED BUFFERS - 8.14 AC
TOTAL AFFECTED - 67.20 AC
UNDISTURBED AREAS - 16.46 AC
TOTAL PERMIT AREA - 83.66 AC
NOTE: THIS MAP IS NOT A CERTIFI
SURVEY AND HAS NOT BEEN REVIE'
BY A LOCAL GOVERNMENT AGENCY
COMPLIANCE WITH ANYAPPLICAE
LAND DEVELOPMENT REGULATIOI
/ WETLANDS /
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UNEXCAVATED BUFFER 50 �'v0/S �E �ND SWAMP •,.�
SEDIMENT POND
PART OF MAIN POND
440' x 180'
1.82 AC
PROPOSED
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(IN FEET)
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PAT MCCRORY
(.a Governor
DONALD R. VAN DER VAART
seerrm�.
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY TRACY DAVIS
December 12, 2016 Ulreomr
Timothy J. Corprew
River Farms, LLC
910 Wynne Fork Road ;I
Hertford, NC 27944
JAN 1 1 2011
Subject: General Permit No. NCG020000
River Farms Mine
COC NCG020904
Perquimans County
Dear Mr. Corprew:
In accordance with your application for a discharge permit received on June 24, 2016, 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. 4"
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 have an approved Operation and Monitoring Plan before mine dewatering
discharges occur at your facility. Discharging mine dewatering wastewater without Plan approval will
be subject to enforcement action.
g.
Please note that mine dewatering wastewater includes wet pit overflows caused solely v direct rainfall
and groundwater seepage for this type of mining operation. Any discharge of this water (and any
stormwater commingled with it) is subject to the effluent limitations in this permit.
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
Slate of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center J 512 North Salisbury Strcel I Raleigh, NC 27699-1612
919 707 9200 T
dewatering water), you will be required to adhere to the conditions in this permit for stormwater
discharges.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Energy, Mining, and Land 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
(919) 807-6375.
Sincerely,
GRIGINAL SIGNED BY
.ACHEALF RANDALL
for Tracy E. Davis, P.E., CPM
cc: Washington Regional Office
Central Files
Stormwater Permitting Program Files
Sme 0f Nx&C=1is I Eenimn td Qualitpl EnerM \Sneal mdLmd Reseuoes
IW \oil Senior omw 1512 NmhS9i"SMet I Ralegk �X 27699QW
919 707 9200 T
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG020000
CERTIFICATE OF COVERAGE No. NCG020904
STORMWATER AND MINE DEWATERING DISCHARGES
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,
Timothy J. Corprew/River Farms, LLC
is hereby authorized to discharge stormwater and mine dewatering-from a facility located at
River Farms Mine
Harvey Point Road
Hertford
Perquimans County
to receiving waters designated as Perquimans River, a class SB water in the Pasquotank River
Basin, in accordance with the effluent limitations, monitoring requirements, and other conditions
set forth in Parts I, II, III, IV, and V of General Permit No. NCG020000 as attached.
This certificate of coverage shall become effective December 12, 2016.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day December 12, 2016. ORIGINAL SIGNED BY
Cv11CHEAL F RANDALL
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission
NCG020904
Map Scale 1:24,000
Timothy I Corprew/River Farms, UPC
River Farms Mine I U J ------
Latitude: 360 10' ar' N JAN
rl li 11 2017
Longitude: -760 27' 22" W
County: Perquimans
Receiving Stream: Perquiman River,
Stream Class: SB
Index Number: 30-6-(7) (Pasquotank River Basin)
Facility Location
I I
I I I I •_.I
I 1 1 4-SECU
S-K&W 6-K&W
i r 3
•, �, PHILLIPS / /'
2 .\ /' y 01
.TOWN OF. /.. JSOttP, /,.
IIERTFORD' ttaO
// /
4p N/F
/ RIVER FARMS, LLC
MONOCRUSOS
V
1
11 - D&G HUDSON LLC 1
I
MONOCRUSOS
/
A
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10 - LONG 8 HEARRING / 1
I 1
,•
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/
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/
10
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9 -LONG &
1
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1
_ I
1
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'1
'1
1
PROCESSING
STOCKPILES
N/F
RIVER FARMS, LLC
UNDISTURBED
AREA
PROCESSING
8
STOCKPILES
1.1 7 - WOODDISSE
1
8- PERQUIMANS COUNTY 1
1
.1
PARCEL MAP
RIVER FARMS PERMIT AREA
HARVEY POINT ROAD
HERTFORD, NC 27944
PIN 7859-03-4489
PID 2-0050-0003
67.20 AC AFFECTED AREA
16.46 AC UNDISTURBED AREA
83.66 ACRE TOTAL PERMIT AREA
104.58 AC TOTAL PARCEL AREA
DIAGRAM BY ELLIOTT CONSULTING
JUNE 21, 2016
SCALE: 1 IN = 300 FT
300 0 ,50 300 600
(IN FEET)
finch = 300 ft.
RIVER FARMS ADJACENT OWNERS
NOTIFIED BY CERTIFIED MAIL
FEBRUARY 2, 2016
1 - Monocrusos, LLC, c/o Global Real Estate
2850 Airline Blvd., Ste. C, Portsmouth, VA 23701
2 - Town of Hertford, NC
PO Box 32, Hertford, NC 27944
3 - Jack S. Phillips, et al.
202 Phillips Street, Hertford, NC 279"
4 - State Employees Credit Union
PO Box 27608, Raleigh, NC 27611
5 - K & W of Hertford, Inc.
751 Body Road, Hertford, NC 27944
6 - K & W of Hertford, Inc.
751 Body Road, Hertford, NC 27944
7 -Anthony B. Wooddisse, et al.
106 Inlet Drive, Elizabeth City, NC 27909
8 - County of Perquimans, NC
PO Box 45, Hertford, NC 27S44
9 - F. Sidney Long, Jr. & Lela L. Hearring
108 Beech Lane, Washington, NC 27889
10- F. Sidney Long, Jr. & Lela L. Hearring
108 Beech Lane, Washington, NC 27889
11-D & G Hudson, LLC (mailed 06-22-16)
871 Ocean Highway, Hertford, NC 27944
\ NOTE: THIS MAP IS NOT A CERTIFIED
•� SURVEY AND HAS NOT BEEN REVIEWED
BY A LOCAL GOVERNMENT AGENCY FOR
COMPLIANCE WITH ANY APPLICABLE
LAND DEVELOPMENT REGULATIONS.
••\ 20
f•
/
1
I
N/F
D & G
HUDSON LLC
N/F
LONG &
HEARRING
N/F
LONG &
HEARRING
ECLAMATION MAP
RIVER FARMS MINE
HARVEY POINT ROAD
HERTFORD, NC 27944
RIVER FARMS, LLC - OPERA'
910 WYNNE FORK ROAD
HERTFORD, NC 27944
MAP BY ELLIOTT CONSULTING
JUNE 22, 2016
SCALE: 1INN: 20OFT
ACREAGES
EXCAVATION . 36.60 AC
ROADS & PROCESSING - 19.16 AC
STOCKPILES - 4.30 AC
UNEXCAVATED BUFFERS - 8.14 AC
TOTAL AFFECTED - 67.20 AC
UNDISTURBED AREAS - 16.46 AC
TOTAL PERMIT AREA - 83.66 AC
NOTE: THIS MAP IS NOT A CERTIFIED
SURVEYAND HAS NOT BEEN REVIEWE
BYA LOCAL GOVERNMENT AGENCY FC
COMPLIANCE WITH ANYAPPLICABLE
LAND DEVELOPMENT REGULATIONS.
N/F
MONOCRUSOS
LLC
3 I N/F
LL � MONOCRUSOS
I LLC
0
w - - PB 250'
01
w j
it
' UNDISTURBED
WETLANDS
i SWAMP
i
POND DETAIL
(NOT TO scut)
MONG ON E
� eoTmu cc vaw
'PERMIT
...`...\..\...\ .` ` �vF SWAMP
UNDISTURBED
WETLANDS
............................................... ............ ��NO-$
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Compliance Inspection Report
Permit: NCG020904 Effective: 12/12/16 Expiration: 09/30/20 Owner: River Farms LLC
SOC: Effective: Expiration: Facility: River Farms Mine
County: Perquimans Harvey Point Rd
Region: Washington
Hertford NC 27944
Contact Person: Timothy J Corprew Title: Phone: 252-340-2523
Directions to Facility:
in Hertford, US 17 (Ocean Hwy South) at stop light, turn south on SR 1336 Harvey Point Rd, mine entrance is 0.23 mile on left.
System Classifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 07/07/2017 Entry Time: 01:OOPM Exit Time: 01:30PM
Primary Inspector: Thom Edgerton Phone: 252-946-6461
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Mining Activities Slormwater Discharge COC
Facility Status: ❑ Compliant ❑ Not Compliant
Question Areas:
■ Storm Water
(See attachment summary)
P.
Page: 1
permit: NCG020904 Owner -Facility: River Farms LLC
Inspection Date: 07/0712017 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Page: 2
Permit: NCG020904 Ownor-Facility: River Farms LLC
Inspection Dale: 07107/2017 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Permit and Outfalls
Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site?
❑
❑ ® ❑
# Were all outfalls observed during the inspection?
®
❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division?
❑
110 ❑
# Has the facility evaluated all illicit (non slormwaler) discharges?
❑
❑ ❑
Comment: This was a quick site inspection as I had heard brief mention of some recent E&S issue at the
site The operation was pumping water at the time when I was there to spray heads which will
water the sod farm at the site Very little water if any will discharge from the operation as
irrigating the sod will generally drawdown the water in the exavated arealpond therefore not
discharging The site was not discharging during this site visit The pump had a slight fuel leak
that was discussed with the operator and he stated the leak would be repaired ASAP. No other
issues were observed during this inspection Jay Edwards and myself walked downstream of
the discharge outlet and did not see sediment deposits or other complications downstream of
the operation.
Page: 3
/
Permit Number NCG020904
Program Category
NPDES SW
Permit Type
Mining Activities Stormwater Discharge CDC
Primary Reviewer
rick.dddle
Coastal SWRule
Permitted Flow
Facility
Central Files: APS
Permit Tracking Slip
SWP _
5/25/2017
Status
Project Type
Active
New Project
Version
Permit Classification
1.00
CDC
Permit Contact Affiliation
Facility Name
Major/Minor
Region
River Farms Mine
Minor
Washington
Location Address
County
Harvey Point Rd
Perquimans
Facility Contact Affiliation
Hertford NC 27944
Timothy J. Corprew
910 Wynne Fork Rd
Owner
Hertford
NC 27944
Owner Name Owner Type
River Farms LLC Non -Government
Owner Affiliation
Timothy J. Corprew
910 Wynne Fork Rd
Dates/Events Hertford NC 27944
Scheduled
Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration
12/12/2016 6/24/2016 12/12/2016 12/12/2016 9/30/2020
Regulated Activities Requested /Received Events
Mining activities -stormwater discharges RO staff report received 12/12/16
RO staff report requested 7/13/16
Outfall 1
Waterbody Name Streamindex Number Current Class Subbasin
Perquimans River 30-6-(7) SS 03-01-52
F'e.d w`^LLe-
f oM. Cw rS
reueiut DwR-
,.
Edgerton, Thom
From: Riddle, Rick L
Sent: Wednesday, July 13, 2016 12:07 PM
To: Dumpor, Samir; Edgerton, Thom
Subject: Review of NOI for NCG020904 - River Farms Mine
Attachments: NCG020904 River Farms Mine_NOI.pdf; NCG020904 River Farms Mine -O&M plan.pdf;
NCG020904 River Farms Mine_Map.pdf
Samir or Thom,
I -lope you all are doing well!
Please review the attached NOI application and respond with any recommendations for issuance of the permit. Your
recommendation to issue the permit serves as your acknowledgement that (1) the facility is located in your region, (2) that
there are no current complaints outstanding about the facility, and (3) that the facility may ultimately be inspected by the
regional staff.
ICOC # IFacility ILocation Lcity/County
INCGO20904 (River Farms Mine (Harvey Point Road II Iertford/Perciuimans
If you need any more info, please send a carrier hound, call or email. 1 look forward to your review or recommendation to
issue the permit by 8/12/2016.
Thanks
Rick
Richard L. Riddle, Jr.
Stormwater Engineer
North Carolina Department Enviromental Quality
North Carolina Division Energy Mineral Land Resources
919 807-6375 office
rick. riddle (a)ncdenr.gov
512 North Salisbury Street
1612 Mail Service Center
Raleigh, NC 27699-1612
hing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
Division of Energy, Mineral and Land Resources /
Land Quality Section — Stormwater Permitting Program
National Pollutant Discharge Elimination System
NCG020000
NOTICE OF INTENT — General Permit Application
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG020000:
STORMWATER AND/OR WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 14XX Mineral Mining Industry (except as specified below) and
like activities
The following activities are 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 (VMA) at mining operations;
Overflow from facilities that recycle process wastewater; and/or
Mine dewalering (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 concrete
operations;
Stormwater discharges associated with oil and gas extraction operations; and
Stormwater discharges associated with tourist gem mines
NCDOT borrow pits (covered under individual permit 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 (sand dredging
or dipping operations) are covered instead by NPDES General Permit NCG520000, administered by the Division
of Water Resources NPDES Wastewater Permitting Program. Please contact DWR for more information.
Please print or type all entries in this application form.
1) Mailing address of owner/operator (official address to which all permit correspondence will be mailed):
Legal Owner Name Timothy J. Corprew / River Farms, 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 Energy, Mineral, and Land Resources' Mining Permit.)
Signee's Name (as signed for in question 41. at end) Timothy J. Corprew
Street Address 910 Wynne Fork Road
City
Telephone No.
Hertford State NC ZIP Code 2i
252 340-2523 E-mail t)corprew@hotmail.com
Alternate Contact Name'
E-mail (if different)
Alternate Contact Telephone (if different)
'Alternate contact should be affiliated with the Owner/Operator. Consultant information can be provided
in question 5.
Page 1 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
2) Location of facility producing discharge:
Facility Name River Farms Mine
Facility Street Address Harvey Point Road
Facility City
Hertford Stale NC ZIP Code 27944
Facility County
Perriuimans County
Facility Contact
Timothy J. Corprew
Telephone No.
252 340-2523 Fax:
Contact E-mail
tjcorprew@hotmail.com
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). In Hertford, US 17 (Ocean Highway South) at stop light,
turn south on SR 1336 Harvey Point Road, mine entrance is 0.23-mile on the left.
4) Facility Location Coordinates:
Latitude 36.178433 deg N Longitude -76.456229deg yp (degrees / minutes / seconds or decimal
degrees)
5) Consultant Information (if applicable):
Consultant: Ken Elliott
Consulting Firm:
Mailing Address:
City: Aydlett
State: NC
Elliott Consulting
PO Box 112
Zip Code: 27916
Phone: 2( 52 ) 339-9021 Fax: 8( 88 ) 637-6241
E-mail: ken@kenobx.com
Permits:
6) This NPDES Permit Application applies to which of the following:
(Optional)
Staple Business Card Here
B New or Proposed Facility Date operation is to begin: July 2016
❑ Existing Date began mining:
7) 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
8) Provide a description of the types of minerals mined at this facility: Sand 8 topsoil
9) Is this a PROCESSING -ONLY facility for materials mined elsewhere? ❑ No ❑ Yes
10) Is this an inactive mine site?
Q No
❑ Yes If yes, have you certified to the Slormwater Permitting Program that all portions of the site where
clearing, grading, and/or excavation activities have occurred have been stabilized?
❑ No ❑ Yes (If yes, the site may be eligible for "Dormant Status" and reduced BMP
inspections. See the General Permit.)
Page 2 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
11) Does this facility already have a valid Mining Permit from DEMLR's Land Quality Section?
No If no, please indicate the status of the Mining Permit application: Application submitted June 2016
❑ Yes If yes, please provide the Mining Permit number: Also provide a copy of
the DEMLR Mining Permit with this NPDES application.
12) Does this facility have any other NPDES permits?
0 No
❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility:
13) Are you applying for a discharge permit in the same location as a previously permitted mine?
Q No
❑ Yes If yes, specify permit number and mine name if known:
14) Does this facility have any Non -Discharge permits from DWR (e.g., recycle permits)?
0 No
❑ Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility:
15) Does total area of this mine site include ready -mixed concrete plant and/or asphalt plant areas?
Q No
❑ Yes If yes, do they have separate NPDES slormwater permits? Q No ❑ Yes (provide permit
number(s) )
If not owned by the same company, who is the owner?
Development Activities and Buffers:
16) Will this mining operation precede development activities at this site?
Q No
❑ Yes
17) Is this mine located within one of the 20 Coastal Counties, and will it add more than 10,000 ft' of
impervious surface?
❑ Yes (to both)
11 No, this mine site IS in one of the 20 Coastal Counties but will NOT add 10,000 ftz of impervious surface.
❑ No, this mine site is NOT in any of the 20 Coastal Counties.
If this site is in one of the 20 Coastal Counties, you may be required to apply for an additional State
Stormwater Permit. Check with your local Regional Office (see contact information and checklist below).
18) Is this mine located the Neuse, Tar -Pamlico, or Catawba River Basins, or the Randleman or Jordan
Water supply Watersheds?
E No
❑ Yes If yes, what size stream buffers are included on site? ft. You must show buffers on site
plans. Also include information and plans showing diffuse Flow through buffers as required.
Page 3 of 12
SWU-NCG02-NOI Last revised 911012015
NCG020000 N.O.I.
Discharge Points, Receiving Waters & Wetlands:
19) 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 will end up in? Perquimans River
To find the waterbody, please see the "MAPS" tab on http://portal.ncdenr.org/web/wq for a map of NC
Surface Waterbody Classifications.
Rercivinn umfcr nlmcf�aG...,/�1 f—H.0... �f_ • SC:
If the site will discharge to a separate storm sewer system, name the operator of the separate storm sewer
system (e.g. City of Raleigh municipal storm sewer).
Discharge of wastewater to receiving waters classified as WS-11 through WS-V, or SA, must be
approved by the Division of Water Resources (DWR) or Division of Marine Fisheries
(DMF). DEMLR cannot grant coverage under NCG020000 without that approval. Also be advised that
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 General Permit
NCG02 but may be eligible for an individual permit.
20) Will this mine site discharge wastewater or stormwater to waters classified as High Quality Waters
(HOW), Primary Nursery Areas (PNA), Trout (Tr) waters, or a class with a symbol like "+" or "@" that
denotes a special management strategy is in place?
No Yes, HQW' ❑ Yes, includes "+" or
Yes, PNA" 8 Yes, Trout jr)
21) Will this mine site discharge wastewater or stormwater to waters classified as Shellfish (SA) waters?
Q No
❑ Yes, SA'
'For questions 19-20, be advised that the NCG02 General Permit limits the discharge volume of total combined
wastewaters to 50 percent of the receiving water in -stream flow under 7010 conditions in HQW waters (PNA and
SA waters are considered HQW by definition). You may be required to contact USGS to obtain a 7010 flow.
22) Will this mine site discharge wastewater or stormwater to impaired waters, or to waters with an
approved "Total Maximum Daily Load" (TMDL)?
To find impaired waters, please see the "Impaired Waters" map on the "MAPS" tab on
http://portal.ncdenr.org/web/wq.
To find approved TMDLs in North Carolina, please see DWR's Water Planning Section website:
http://portal.ncdenr.org/web/wq/ps/mtu/tmdl/tmdls.
B No
❑ Yes, these waters are impaired for (list pollutants):
❑ Yes, these waters have a TMDL for (list pollutants):
Page 4 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
23) List discharge points (outfalls) that convey discharge from the mine site (both on -site and off -site) and
location coordinates. Attach additional sheets if necessary, or note that this information is specified
on the site plan. Include proposed maximum daily flow rate for each wastewater outfall.
You must show all discharge points clearly on the submitted site plan. Be advised
that NCDEQ may require you to apply for an individual permit, based on proposed
discharge rates and receiving stream conditions (low flows, impairments, etc.)
Stormwater
Stormwater Outfall No
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Mine Dewatering
Mine Dewatering (Wastewater) Outfall No. 1-North
Proposed maximum flow rate: 0.10 mgd
Latitude (degrees/minutes/seconds or decimal degrees): 36.179283 deg
N
Longitude (degrees/minutes/seconds or decimal degrees): -76.458243 deg
W
Mine Dewatering (Wastewater) Outfall No. 2-South
Proposed maximum flow rate: 0.10 mgd
Latitude (degrees/minutes/seconds or decimal degrees): 36.176437 deg
N
Longitude (degrees/minutes/seconds or decimal degrees): -76.456105 deg
W
Process Wastewater
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Page 5 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
24) Help us understand what will happen to the dewatering water at this mine site:
❑ N/A — this mine is not dewatering at all and will not dewater in the future.
a) Will this mine be dewatering and discharging to waters of the state? (Answer only if dewatering)
❑ No
❑ Yes If yes, where to? 0 Surface Waters and/or Wetlands (on -site or off -site)
❑ Other (on -site or off -site) Describe:
b) Will this mine be dewatering but not discharging to waters of the state? (Answer only if dewatering)
Q No
❑ Yes If yes, explain how you are dewatering, and where that water will be directed:
25) Are there wetlands or surface waters within 400' of the mine pit perimeter?
❑ No
3 Yes If yes, what distance are they from the mine pit perimeter? 100 feet.
26) Will mining operations require dewatering near wetlands or other waterbodies, and will dewatering
potentially impact any wetlands or other waterbodies?
❑ No, dewatering will not occur near (within 400') of wetlands or other waterbodies (e.g., streams, lake, etc.)
Yes, dewatering will be near wetlands or other waterbodies
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 (POM) Plan that has been approved by the
Department.
For sites that may drain wetlands — approval of a POM Plan may be required prior to coverage under
this permit. The POM Plan should be submitted to the appropriate Regional Office and in all cases 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 the end of the
application. Contact the Regional Office for questions specific to your mine.
27) Have you been required to obtain 404/401 Certification permits?
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 6 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
28) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
Q No ❑ Yes If yes, please attach to application submission.
Stormwater BMPs and Vehicle Maintenance:
29) Does this facility employ best management practices for stormwater control?
El No ❑ Yes If yes, please briefly describe:
No impervious surface on site.
No impervious surface on site.
30) Does this facility have a Stormwater Pollution Prevention Plan?
Q No ❑ Yes If yes, when was it implemented?
31) Are vehicle maintenance activities (VMA) occurring or planned at this mine site?
0 No []Yes, I
fes, will VMA area runoff discharge into the wastewater treatment system(s)?
No, VMA runoff will discharge separately through a stormwater outfall
VMA runoff will drain back to the mine pit or other wastewater system
Wastewater Treatment Facilities:
32) Will mine dewatering occur? (Yes, we are asking about dewatering again.)
No
Yes If yes, will the mine discharge this water?
33) Will this facility wash mined materials?
8 No
Yes If yes, will the mine discharge this water?
Yes
34) Will discharges of process wastewater treatment systems occur (including possible recycle system
overflows)?
9No
Yes If yes, describe what kind of systems:
35) Will this facility employ chemical additives to flocculate suspended solids?
8 No
Yes If yes, provide the name, manufacturer, and the quantity of average daily usage of the chemical
additive (if known):
Note: Please see our website for a list of evaluated polyacrylamide (PAMS) products for use in North
Carolina: hitp://portal.ncdenr.org/web/Ir/construction-stormwater
36) Will any of the wastewater treatment facilities at this mine overflow only during rainfall events that
exceed the 10-yr, 24-hr rainfall event?
❑ Yes If yes, which treatment systems are those?
0 No, all wastewater treatment facilities will discharge more frequently (i.e., during smaller rain events)
Page 7 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
37) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
No
❑ Yes
38) A wastewater treatment alternatives review is required by 15A NCAC 2H.0105 (c)(2)
for any new or expanding water pollution control facility discharges in North Carolina. You may
attach additional sheets. List the types of wastewater this mine site will discharge:
❑ Mine Dewatering
❑ Process Wastewater (such as washing or recycle system overflows, other mining activity wastewater)
a) What wastewaters were considered for this alternatives review? Q Dewatering ❑ Process WW
b) Connection to a Municipal or Regional Sewer Collection System:
i) Are there existing sewer lines within a one -mile radius? ................... Q Yes ❑ No
...................
(1) If Yes, will the wastewater treatment plant (W WTP) accept the wastewater? .... ❑ Yes u No
(a) If No, please attach a letter documenting that the W WTP will not accept the wastewater.
(b) If Yes, is it feasible to connect to the W WTP? Why or why not?'
1401 leasible because of cost of installation
Not feasible ecause o cos ot ns a s Ion
c) Closed -loop Recycle System (meets design requirements of 15A NCAC 2T .1000):
Are you already proposing a closed -loop recycle system (CLRS)? ......................... ❑ Yes Q No
(1) If Yes, for what type of wastewater at this mine site? Q Dewatering ❑ Process W W
(2) If No, is this option technologically feasible (possible)? Why or why not?'
Not reasinie oecause Ot cost or installation
(3) If No, is it otherwise feasible to build a CLRS at this site? Why or why not?'
Not feasible ecause o cos o Ins a s Ion
(4) What is the feasibility of building a CLRS compared to direct surface water discharge?'
Not feasible.
d) Surface or Subsurface Disposal System (e.g., spray irrigation):
i) Is a surface or subsurface disposal technologically feasible (possible)? ......................0 Yes ❑ No
Why or Why not?'
ii) Is a surface or subsurface disposal system otherwise feasible to implement?*............ 0 Yes ❑ No
Why or Why not?"
Page 8 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
iii) What is the feasibility of employing a subsurface or surface discharge as compared to a direct
discharge to surface waters?'
Very feasible at start of mining, less so at end. Spray irrigation wI no
e enough to dewater -acre excavation. Operator plans to use direct discharge as primary and spray irngation upon nee or
e) Direct Discharge to Surface Waters: Is discharge to surface waters the most environmentally sound
alternative of all reasonably cost-effective options for the wastewaters being considered?'
E) Yes ❑ No
f) If this review included all wastewater discharge types, would excluding some types (e.g. mine
dewatering) make any of the above non -discharge options feasible for some of the wastewaters?
❑ Yes E No
Feasibility should take into account initial and recurring costs. You may be asked to provide
further information to support your answers to these questions after the initial review.
Other:
39) 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?
3 No ❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
0 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:
40) Is your facility providing appropriate secondary containment for bulk storage of liquid materials? (See
permit text for secondary containment requirements.)
No
❑ Yes
41) Does your site have an active landfill within the mining permit boundary?
Q No
❑ Yes If yes, specify type: ❑ LCID (Land Clearing and Inert Debris) 0 Other:
Page 9 of 12
SWU-NCG02.NOI Last revised 9110/2015
NCG020000 N.O.I.
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
space below.
x Fee of $100 made payable to NCDEQ.
X Completed application and all supporting documents.
x Copy of the valid approved mining permit (MP) for the facility or indication of MP application status.
X Copy of a county map or other general location map that shows the mining site and nearest major roads.
X 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.
x 2 copies of large-scale (minimum 24" x 36") site plan with topographical lines with
all outfalls, applicable buffers and wetlands clearly delineated, receiving waters, and
100-year flood plain line if applicable.
A copy of your US Army Corps -approved wetland delineation if you marked "yes" to question 27 above.
x A line drawing of the water flow through the facility or block Flow diagram. A pictorial description of the
nature of any sources of water and any collection and treatment measures.
X 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. Indicate the Regional Office Contact: Thom Edgerton
• Applicant has included a detailed list of impervious surface areas and percentages, sub -drainage
areas, and total drainage area.
X 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 Operation and
Monitoring (POM) Plan. An approved POM plan may be required prior to NCG02 issuance.
x 2 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 programs apply), applicable buffers, and access and/or haul roads).
X Pump dewatering size and information on its specifications.
_Well information (design, depths, maintenance).
x Physical monitoring for the wetlands areas.
X Settling pond sizing information, if applicable.
_Level spreader design, if applicable.
x Details about dewatering method.
_Cone of influence calculations.
X Description of measures to prevent erosion and Flooding.
_Description and information about 401/404 permits that have been obtained.
_Copy of US Army Corps of Engineers wetland delineations or approved wetland delineation (if
applicable).
X I have contacted my local regional office about a POM Plan.
Regional Office Contact: Thom Edgerton Date contacted: June 22, 2016
-OR-
_ I will not impact any nearby wetlands, surface waters, or groundwaters by dewatering.
Page 10 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
Certification: North Carolina General Statute 143-215.6 b (i) 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 fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monhonng 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).
41) 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:
(I) 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. I 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. 1 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: Timothy J. Corprew
Title: \Owner -
of
June 21. 2016
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to NCDEQ.
Page 11 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
Mail the entire package to:
Stormwater Permitting Program
Division of Energy, Mineral and Land Resources
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Note
The submission of this document does not guarantee coverage under the NPDES
NCG02 General Permit. Upon review of the submittal, the Division may
determine that coverage under an individual permit is more appropriate. Also be
advised that renewed and continued coverage under NCG02 may be dependent
upon the permittee's compliance success and/or status of the receiving waters.
For questions, please contact the DEMLR/Land Quality Section Regional Office for your area.
DEMLRILand Quality Section Regional Office Contact Information:
Asheville Office ......
(828) 296-4500
Fayetteville Office ...
(910) 433-3300
Mooresville Office ...
(704) 663-1699
Raleigh Office ........
(919) 791-4200
Washington Office ...(252)
946-6481
Wilmington Office ...
(910) 796.7215
Winston-Salem ......
(336) 776-9800
Central Office .........(919)
707-9220
Page 12 of 12
SWU-NCG02-NOI Last revised 9/1012015
OPERATION AND MAINTENANCE PLAN
SAND MINE DEWATERING AND WATER LEVEL CONTROL STRUCTURE
Operator: Timothy J. Corprew, River Farms, LLC, 910 Wynne Fork Road, Hertford, NC 27944
Job Location: River Farms Mine, Harvey Point Road, Hertford, NC 27944
County: Perquimans County
Prepared by: Ken Elliott, consulting
Date: June 22, 2016
This plan defines responsibilities for operating, inspecting, and maintaining equipment and structures
used for constructing and dewatering the River farms Mine safely, and that dewatering will not degrade
or negatively impact any wetlands or waters of the state.
Description and Operation of the River Farms Mine:
The River Farms Mine is a proposed 35.6-acre sand mine excavation operated by River Farms, LLC,
Timothy J. Corprew, owner, in an 83.66-acre permit area located on Harvey Point Road. The site is
approximately .50 miles south of Hertford, NC, in the Town of Hertford Extraterritorial Jurisdiction area.
The permit area is on high sandy land, recently cleared, and currently under cultivation as a turf grass
farm. At this time Mr. Corprew is submitting an application with the NCDEQ Division of Energy, Mineral
and Land Resources to construct the sand mine and begin operation in July 2016. Mr. Corprew is also
submitting an application for a Special Use Permit from the Town of Hertford Planning Department for
construction of this mine.
Sand Mine Dewatering:
It will be necessary to dewater the excavation as it is being excavated to allow the excavating equipment
to enter the excavated area in order to safely and efficiently remove the sand from the pond bottom.
This will allow for full depth excavation and proper reclamation of the edges of the pond. It is the
intention of Mr. Corprew to only dewater the excavations as needed, which will not entail full-time
dewatering.
For excavation purposes, dewatering will occur roughly every 30 days which will allow excavating
equipment to remove approximately 150 loads of sand up to ground level where it will be stockpiled for
later use. When the stockpile is depleted from usage, the excavation area will again be dewatered, and
another quantity of sand will be excavated.
The operator plans to initially excavate two 1.82-acre ponds on the north and south sides of the
excavation area, both being located inside the main excavation area. Initially used as water sources for
the turf farm, the ponds will be later used as sedimentation ponds during the main pond excavation.
The ponds will be constructed with 3:1 slopes above normal groundwater height with full groundcover
installed, and 2:1 slopes below normal groundwater level. Once the small ponds are completed the rest
of the 35.6-acre main excavation will begin between the sediment ponds and the east end of the
excavation area. The edge of the sediment pond excavations and main excavation will be a minimum of
100 feet from the nearest wetlands. Use of the sediment ponds will forcibly hydrate the nearby
wetlands located north and south of the sediment ponds and excavation, and will minimize dehydration
of the swampy land.
The operator will install an 8-inch dewatering pump between the main excavation and the closest
sediment pond. Discharge from the dewatering pump will enter the sediment pond on its east end, and
there will be a constructed water height control device (see attached diagram) discharge point located
on the west end of the sediment pond. The discharge point will release clear water to a 25-foot-long
riprap-protected ditch, which then leads 75 feet to wetlands, then 1200 feet through wetlands to the
Perquimans River.
Water will be pumped from the main pond to the sediment pond by the 8in gasoline -powered transfer
pump operating at idle speed. Operator will utilize one or both sediment ponds and pumps as needed.
Estimated maximum flow from each pump will be 8300 gallons/hour, 0.20 mgd (4150 gallons / hour /
pump). It is the intention of Mr. Corprew to drop the water level in the main pond approximately 20 -
25 feet below normal ground level when needed.
The overflow from the sediment pond will be controlled by a water height control device constructed in
the west bank of the sediment pond in use. This control structure will allow water to flow through the
baffle into a 25ft long x 15" wide buried PVC pipe leading 25 feet to a 6ft wide drainage ditch running
north or south 75 feet to wetlands and then 1200 feet to the Perquimans River. For erosion control, the
overflow water will exit the water height control discharge pipe onto a 20ft long riprap-lined apron in
the ditch.
Time and distance will allow all sedimentation to occur to acceptable levels in the sediment ponds
before the overflow water reaches outfall and then the waters of the State. Water will have to travel a
minimum of 400 feet in the sediment pond to reach the overflow point, which will give enough surface
area to allow sufficient sedimentation to occur. There will be a minimum 2 feet of freeboard between
the water surface in the sediment pond and the top of the sediment pond bank. Stormwater drainage
will be unable to enter the sediment area due to the height of the sediment pond berm and damaging
sediment pond rates.
Sedimentation and Erosion Control
There is wetland swamp on the north and south side of the proposed excavation, located 100 feet from
the excavation edge, running parallel to the affected area boundary. The operator will establish a 50ft
undisturbed buffer (no disturbance of any kind) between the southwest boundary of the affected area
and the adjacent wetland area. This buffer will be maintained by the operator as pasture with grass and
pine tree ground cover.
In addition, there will be a 50ft unexcavated buffer (may contain roadways, stockpiles, and sediment &
erosion control devices) around the entire excavation area, between the excavation and the
undisturbed buffer.
Sediment pond overflow will drain into a constructed 6ft wide drainage ditch that leads 25 feet to a field
irrigation and drainage ditch, then 75 feet to wetlands and then 1200 to the Perquimans River.
Overflow into the outfall ditch will be stabilized by riprap installed in the ditch at the overflow (see
diagram) to prevent erosion of the ditch.
All erosion and sedimentation will remain inside of the permit area. The operator will construct and
maintain an 8ft wide x 2ft tall grass -covered sand berm around the perimeter of the current affected
area of the excavation during all phases of operation. During mining operations and dewatering, the
majority of the water leaving the excavation will remain inside of the permit area and will only overflow
through the sediment pond occasionally. The sediment pond will be approximately 10 feet deep, and
there is a sand layer below the bottom of the area. The porosity of the soil under the sediment pond
will allow most of the water pumped into the pond from dewatering to seep back into the ground
naturally. Any excess water overflowing from the sediment pond will flow downstream 1200 feet to
wetlands leading to Perquimans River.
Maintaining the Sediment Pond Overflow Control Structure, Settlement Pond and Ditches
Inspections and maintenance are required to obtain the intended function of safely dewatering the sand
mine, and to maintain the life of any adjacent wetlands or waters of the State. Items to inspect and
maintain during the anticipated 10-year life of the mine dewatering permit are:
• Inspect the water control structures regularly, especially following heavy rains and runoff, or
during periods of operation of the structure.
• Remove accumulated debris from the overflow control structure.
• Inspect the structure for excessive settlement or seepage.
• Inspect all components of the structure, including appurtenances, and repair or replace any
damaged items as needed.
e Inspect embankments, berms and appurtenant structures, and repair as needed.
o Repair any damage to vegetated areas or berms with compacted earth fill, reshaping, sodding,
reseeding and mulching as needed.
• Inspect riprap outlet stabilization structures in ditches regularly, replace dislodged rock as
necessary.
• Promptly repair all leaks in delivery facilities by replacing valves, fittings, gaskets, and worn or
damaged parts.
• Maintain all screens, filters, valves, timers and other electrical and mechanical equipment in
good operating condition, following manufacturer's recommendations
Monitoring the Process and Effects of Dewatering
Analytical and qualitative monitoring of mine dewatering wastewater will be in accordance with the
NCG020000 permit, as follows:
• All ponds in the River Farms Mine permit area will be inspected daily by the operator to identify
any abnormal conditions.
• All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches, and all
structures will be repaired immediately.
• Special inspections will be conducted immediately following severe storms, vandalism, and
other significant events.
• Dewatering process will be inspected daily during periods of dewatering the excavation.
• Overflow of wastewater process will be inspected daily during periods of dewatering the
excavation.
• Outflow of dewatering wastewater will be monitored quarterly at the overflow exit stabilization
structure for pH, settleable solids, turbidity, and total flow. Samples will be collected and tested
onsite for pH, and the remainder will be tested for the remaining parameters by a North
Carolina certified lab.
e Rain gauge data will be collected by monitoring rain gauge data monthly and after each rain
event.
Records
Data will be collected as follows:
• Data will be collected from samples taken from the wastewater point source discharge in
operation at the time.
• Point source discharge data: data from the site taken quarterly, date & time, general weather
conditions, pH of sample, status of process at point source, inlet or outlet, other DWQ required
data.
e Visual monitoring of adjacent wetlands and farmland for potential dehydration during mining or
dewatering activities will take place weekly. Solutions to any degradation caused by any mining
activity will include alteration of dewatering process. DWQ will be consulted as needed;
alterations to process will be recorded.
• Elliott Consulting will maintain the following records in a permanent file at the Elliott Consulting
office at PO Box 112, 202 Elliott Road, Aydlett, NC 27916: a record of all significant actions
taken; as -built drawings; permits; analytical results from sampling; and related material. Copies
of all inspections, monitoring reports and lab analyses shall be provided to NCDWQ on a regular
basis and as requested.
BMP Conditions
e The permittee will utilize best management practices to ensure that dewatering the River Farms
Mine will not degrade or negatively impact any wetlands or waters of the State. BMP's will
include:
o Sediment pond outlet structure with flashboard riser located at edge of pond for ease of
maintenance.
o All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches,
and all structures will be repaired immediately.
o Sediment pond outlet ditch will have rock lining or riprap stone layer to prevent erosion,
scour or sloughing of embankment
• The permittee shall obtain authorization from the Director of the NCDEMLR and the Stormwater
Program chief prior to utilizing any chemical flocculants at Robert White Sand Mine.
Signed,
Ken Elliott
for River Farms, LLC
Timothy J. Corprew, owner
June 22, 2016
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OPERATION AND MAINTENANCE PLAN
SAND MINE DEWATERING AND WATER LEVEL CONTROL STRUCTURE
Operator: Timothy J. Corprew, River Farms, LLC, 910 Wynne Fork Road, Hertford, INC 27944
Job Location: River Farms Mine, Harvey Point Road, Hertford, NC 27944
County: Perquimans County
Prepared by: Ken Elliott, consulting
Date: June 22, 2016
This plan defines responsibilities for operating, inspecting, and maintaining equipment and structures
used for constructing and dewatering the River farms Mine safely, and that dewatering will not degrade
or negatively impact any wetlands or waters of the state.
Description and Operation of the River Farms Mine:
The River Farms Mine is a proposed 35.6-acre sand mine excavation operated by River Farms, LLC,
Timothy J. Corprew, owner, in an 83.66-acre permit area located on Harvey Point Road. The site is
approximately .50 miles south of Hertford, NC, in the Town of Hertford Extraterritorial Jurisdiction area.
The permit area is on high sandy land, recently cleared, and currently under cultivation as a turf grass
farm. At this time Mr. Corprew is submitting an application with the NCDEQ Division of Energy, Mineral
and Land Resources to construct the sand mine and begin operation in July 2016. Mr. Corprew is also
submitting an application for a Special Use Permit from the Town of Hertford Planning Department for
construction of this mine.
Sand Mine Dewatering:
It will be necessary to dewater the excavation as it is being excavated to allow the excavating equipment
to enter the excavated area in order to safely and efficiently remove the sand from the pond bottom.
This will allow for full depth excavation and proper reclamation of the edges of the pond. It is the
intention of Mr. Corprew to only dewater the excavations as needed, which will not entail full-time
dewatering.
For excavation purposes, dewatering will occur roughly every 30 days which will allow excavating
equipment to remove approximately 150 loads of sand up to ground level where it will be stockpiled for
later use. When the stockpile is depleted from usage, the excavation area will again be dewatered, and
another quantity of sand will be excavated.
The operator plans to initially excavate two 1.82-acre ponds on the north and south sides of the
excavation area, both being located inside the main excavation area. Initially used as water sources for
the turf farm, the ponds will be later used as sedimentation ponds during the main pond excavation.
The ponds will be constructed with 3:1 slopes above normal groundwater height with full groundcover
installed, and 2:1 slopes below normal groundwater level. Once the small ponds are completed the rest
of the 35.6-acre main excavation will begin between the sediment ponds and the east end of the
excavation area. The edge of the sediment pond excavations and main excavation will be a minimum of
100 feet from the nearest wetlands. Use of the sediment ponds will forcibly hydrate the nearby
wetlands located north and south of the sediment ponds and excavation, and will minimize dehydration
of the swampy land.
The operator will install an 8-inch dewatering pump between the main excavation and the closest
sediment pond. Discharge from the dewatering pump will enter the sediment pond on its east end, and
there will be a constructed water height control device (see attached diagram) discharge point located
on the west end of the sediment pond. The discharge point will release clear water to a 25-foot-long
riprap-protected ditch, which then leads 75 feet to wetlands, then 1200 feet through wetlands to the
Perquimans River.
Water will be pumped from the main pond to the sediment pond by the Bin gasoline -powered transfer
pump operating at idle speed. Operator will utilize one or both sediment ponds and pumps as needed.
Estimated maximum flow from each pump will be 8300 gallons/hour, 0.20 mgd (4150 gallons / hour /
pump). It is the intention of Mr. Corprew to drop the water level in the main pond approximately 20 -
25 feet below normal ground level when needed.
The overflow from the sediment pond will be controlled by a water height control device constructed in
the west bank of the sediment pond in use. This control structure will allow water to flow through the
baffle into a 25ft long x 15" wide buried PVC pipe leading 25 feet to a 6ft wide drainage ditch running
north or south 75 feet to wetlands and then 1200 feet to the Perquimans River. For erosion control, the
overflow water will exit the water height control discharge pipe onto a 20ft long riprap-lined apron in
the ditch.
Time and distance will allow all sedimentation to occur to acceptable levels in the sediment ponds
before the overflow water reaches outfall and then the waters of the State. Water will have to travel a
minimum of 400 feet in the sediment pond to reach the overflow point, which will give enough surface
area to allow sufficient sedimentation to occur. There will be a minimum 2 feet of freeboard between
the water surface in the sediment pond and the top of the sediment pond bank. Stormwater drainage
will be unable to enter the sediment area due to the height of the sediment pond berm and damaging
sediment pond rates.
Sedimentation and Erosion Control
There is wetland swamp on the north and south side of the proposed excavation, located 100 feet from
the excavation edge, running parallel to the affected area boundary. The operator will establish a 50ft
undisturbed buffer (no disturbance of any kind) between the southwest boundary of the affected area
and the adjacent wetland area. This buffer will be maintained by the operator as pasture with grass and
pine tree ground cover.
In addition, there will be a 50ft unexcavated buffer (may contain roadways, stockpiles, and sediment &
erosion control devices) around the entire excavation area, between the excavation and the
undisturbed buffer.
Sediment pond overflow will drain into a constructed 6ft wide drainage ditch that leads 25 feet to a field
irrigation and drainage ditch, then 75 feet to wetlands and then 1200 to the Perquimans River.
Overflow into the outfall ditch will be stabilized by riprap installed in the ditch at the overflow (see
diagram) to prevent erosion of the ditch.
All erosion and sedimentation will remain inside of the permit area. The operator will construct and
maintain an 8ft wide x 2ft tall grass -covered sand berm around the perimeter of the current affected
area of the excavation during all phases of operation. During mining operations and dewatering, the
majority of the water leaving the excavation will remain inside of the permit area and will only overflow
through the sediment pond occasionally. The sediment pond will be approximately 10 feet deep, and
there is a sand layer below the bottom of the area. The porosity of the soil under the sediment pond
will allow most of the water pumped into the pond from dewatering to seep back into the ground
naturally. Any excess water overflowing from the sediment pond will flow downstream 1200 feet to
wetlands leading to Perquimans River.
Maintaining the Sediment Pond Overflow Control Structure, Settlement Pond and Ditches
Inspections and maintenance are required to obtain the intended function of safely dewatering the sand
mine, and to maintain the life of any adjacent wetlands or waters of the State. Items to inspect and
maintain during the anticipated 10-year life of the mine dewatering permit are:
Y Inspect the water control structures regularly, especially following heavy rains and runoff, or
during periods of operation of the structure.
• Remove accumulated debris from the overflow control structure.
• Inspect the structure for excessive settlement or seepage.
• Inspect all components of the structure, including appurtenances, and repair or replace any
damaged items as needed.
• Inspect embankments, berms and appurtenant structures, and repair as needed.
• Repair any damage to vegetated areas or berms with compacted earth fill, reshaping, sodding,
reseeding and mulching as needed.
• Inspect riprap outlet stabilization structures in ditches regularly, replace dislodged rock as
necessary.
• Promptly repair all leaks in delivery facilities by replacing valves, fittings, gaskets, and worn or
damaged parts.
• Maintain all screens, filters, valves, timers and other electrical and mechanical equipment in
good operating condition, following manufacturer's recommendations
Monitoring the Process and Effects of Dewatering
Analytical and qualitative monitoring of mine dewatering wastewater will be in accordance with the
NCG020000 permit, as follows:
• All ponds in the River Farms Mine permit area will be inspected daily by the operator to identify
any abnormal conditions.
• All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches, and all
structures will be repaired immediately.
• Special inspections will be conducted immediately following severe storms, vandalism, and
other significant events.
• Dewatering process will be inspected daily during periods of dewatering the excavation.
• Overflow of wastewater process will be inspected daily during periods of dewatering the
excavation.
• Outflow of dewatering wastewater will be monitored quarterly at the overflow exit stabilization
structure for pH, settleable solids, turbidity, and total flow. Samples will be collected and tested
onsite for pH, and the remainder will be tested for the remaining parameters by a North
Carolina certified lab.
• Rain gauge data will be collected by monitoring rain gauge data monthly and after each rain
event.
Records
Data will be collected as follows:
• Data will be collected from samples taken from the wastewater point source discharge in
operation at the time.
• Point source discharge data: data from the site taken quarterly, date & time, general weather
conditions, pH of sample, status of process at point source, inlet or outlet, other DWQ required
data.
• Visual monitoring of adjacent wetlands and farmland for potential dehydration during mining or
dewatering activities will take place weekly. Solutions to any degradation caused by any mining
activity will include alteration of dewatering process. DWQ will be consulted as needed;
alterations to process will be recorded.
• Elliott Consulting will maintain the following records in a permanent file at the Elliott Consulting
office at PO Box 112, 202 Elliott Road, Aydlett, NC 27916: a record of all significant actions
taken; as -built drawings; permits; analytical results from sampling; and related material. Copies
of all inspections, monitoring reports and lab analyses shall be provided to NCDWQ on a regular
basis and as requested.
BMP Conditions
• The permittee will utilize best management practices to ensure that dewatering the River Farms
Mine will not degrade or negatively impact any wetlands or waters of the State. BMP's will
include:
o Sediment pond outlet structure with flashboard riser located at edge of pond for ease of
maintenance.
o All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches,
and all structures will be repaired immediately.
o Sediment pond outlet ditch will have rock lining or riprap stone layer to prevent erosion,
scour or sloughing of embankment
e The permittee shall obtain authorization from the Director of the NCDEMLR and the Stormwater
Program chief prior to utilizing any chemical flocculants at Robert White Sand Mine.
Signed,
Ken Elliott
for River Farms, LLC
Timothy J. Corprew, owner
June 22, 2016
E, L L I O T 'f C O N S U LTI N G
June 22, 2016 .
NC Department of I3nvironmental Quality
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, NC 27699-1612
To Whom It May Concern:
This NCG020000 Notice of Intent General Pcrmit application is in relation to a request
by Timothy J. Corprcw, owner of River Farms, LL.C, to excavate a 35.6-acre pond, on property
owned by Mr. Corprew at the intersection of US 17 Ocean I [wy South and Harvey Point
Road, Hertford, NC, in Perquimans County. The proposed permit area is located in a high,
sandy, cultivated turf grass field, and will not present any problems regarding runoff to
adjacent areas when all proposed erosion and sediment control measures are in place. The
purpose of the excavation will be to serve as wildlife habitat and to increase scenic value for
the Landowner.
The excavation area will be located geographically 600 feet from the nearest public
highway and will be accessible only by a privately -owned access road. Excavation activities
will be screened from public view on all sides by existing full growth woodland, vegetated sand
berms, and distance across adjacent fields. Public access to the permit area is limited by private
property, and private road access. There will be minimum 50ft wide unexcavated buffers on
all sides of the permit area, and an 50ft wide undisturbed buffers adjacent to nearby wetlands.
Upon receipt of the approved permits from NCDI Q, River Farms, LLC plans to excavate
the pond with dewatering to an average depth of 25 feet below normal groundwater level, and
will include construction of proper cut slopes on all sides of the excavated area, as required
in the permit. Reclamation of the permit area will include grading, leveling, and grassing of
all affected areas. The permit is requested fora 10-year period.
All adjacent landowners have been contacted and made aware of the proposed excavation
operation, and land entry agreements have been obtained. The excavation area will be well
marked with warning and keep out signs to prevent inadvertent public access.
River Farms, LL.0 does hereby request approval for this NCG020000 Permit, and asks
that it be expedited as soon as possible. River Farms, LLC appreciates your consideration of
this mine permit application.
Sincerely,
Kcn llliott
For Timothy J. Corprew, owner
River Farms, LI-C
PO BOX 112 • AS DI.H'I"I, NOIt'III CAHOIANA • 27)16
PIIONH: 252-339-9021 • IiNIAIL: KP:NQKFNOHS.COAI
ORIGINAL
NORTH CAROLINA
NCG020000 NOI
GENERAL PERMIT APPLICATION
River Farms Mine
Harvey Point Road, Hertford, NC 27944
Perquimans County
State of North Carolina
Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
RECEiVED
JUN 2 4 2016
LAND QUALITY.
MINING, PROGRAM
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
(919) 707-9220
4270
A
1kdYADK1W
TIMOTHY COflPREW 6ANK
"FARM ACCOUNT HerBord,NC27944-
910 WYNNE FORK RD. 66-211/531
HERTFORD, NC 27944-9356 6/21/2016
PH. 252.340-2523
PAY TO THE :NCDEQ $««100.00
ORDER OF-.
One Hundred and 00/100'........... l
DOLLAR.
NCDEQ
1612 Mail Service Center u 4e L-;
Raleigh, NC
��
CGoa hoho
_..,
MEMO' AUTH I1151 TUPE ,
11WO0427011'
NORTH CAROLINA
NCG020000 NOI
GENERAL PERMIT APPLICATION
River Farms Mine
Harvey Point Road, Hertford, NC 27944
Perquimans County
State of North Carolina
Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
RECEIVED
JUN 2.4 Z016
LAND QUALITY
RAINING PROGRAM
1.612 Mail Service Center
Raleigh, North Carolina 27699-1612
(919)707-9220
1-11,L.101••1CONSULTING
June 22, 2016
NC Department of Environmental Quality
Division of Energy, Mineral and land Resources
Sturmwater Permitting Program
1612 Mail Service Center
Rnleigh, NC 27699-1612
To Whom It May Concern:
This NCG020000 Notice of Intent General Permit application is in relation to a request
by Timothy J. Corprew, owner of River Farms, I1.C, to excavate a 35.6-acre pond, on property
owned by Mr. Corprew at the intersection of US 17 Ocean Hwy South and Harvey Point
Road, Hertford, NC:, in Perquimans County. The proposed permit area is located in a high,
sandy, cultivated turf grass field, and will not present any problems regarding runoff to
adjacent areas when all proposed erosion and sediment control measures are in place. The
purpose of the excavation will be to serve as wildlife habitat and to increase scenic value for
the landowner.
The excavation area will be located geographically 600 feet from the nearest public
highway and will be accessible only by a privately -owned access road. Excavation activities
will be screened from public view on all sides by existing full growth woodland, vegetated sand
berms, and distance across adjacent fields. public access to the permit arca is limited by private
property, and private road access. There will be trtininwm 50ft Wide unexcavated buffers on
all sides of the permit area, and an 50ft wide undisturbed buffers adjacent to nearby wetlands.
Upon receipt of the approved permits from NCD17Q, River Farms, IJ,C1 plans to excavate
the pond with dewatering to an average depth of 25 feet below normal groundwater level, and
will include construction of proper cut slopes on all sides of the excavated arca, as required
in the pernhit. Reclamation of the permit area will include grading, leveling, and grassing of
all affected areas. The permit is requested for a 10-year period.
All adjacent landowners have been contacted and made aware of the proposed excavation
operation, and land entry agreements have been obtained: The excavation area will be well
marked with warning and keep out signs to prevent inadvertent public access.
River farms, LLC does hereby request approval for this NCG020000 Permit, and asks
that it be expedited as soon as possible. River Farms, 1,1.0 appreciates your consideration of
this mine permit application.
Sincerely,
Ken Elliott
For'1'imothy J. Corprew, owner
River Farms, LLC
PU BOX 112 • AYDIA. I"I', NO it I'll CA Ii ULINA • 27916
11NONI.: 252-339.9u21 • IiAIAII.: KIiN (yKIIN UII x.t:U TI
Division of Energy, Mineral and Land Resources /
Land Quality Section — Stormwater Permitting Program
National Pollutant Discharge Elimination System
NCCO20000
NOTICE OF INTENT — General Permit Application
MR AGENCY USE ONLY
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National Pollutant Discharge Elimination System application for coverage under General Permit
NCG020000:
STORMWATER AND/OR WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 14XX Mineral Mining Industry (except as specified below) and
like activities
The following activities are 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 (VMA) 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 concrete
operations;
Stormwater discharges associated with oil and gas extraction operations; and
Stormwater discharges associated with tourist gem mines
NCDOT borrow pits (covered under individual permit 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 (sand dredging
or dipping operations) are covered instead by NPDES General Permit NCG520000, administered by the Division
of Water Resources NPDES Wastewater Permitting Program. Please contact DWR for more information.
Please print or type aft entries in this application form
1) Mailing address of owner/operator (official address to which all permit correspondence will be mailed):
Legal Owner Name Timothy J. Corprew / River Farms, 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 Energy Mineral, and Land Resources' Mining Permit.)
Signee's Name (assigned for in question 41. at end) Timothy J. Corprew
Street Address 910 Wynne Fork Road
City Hertford State NC ZIP Code 27944
Telephone No. 252 340-2523 E-mail tjcorprew@hotmail.com
Alternate Contact Name'
E-mail (if different)
Alternate Contact Telephone (if different)
'Alternate contact should be affiliated with the OwnerlOperator. Consultant information can be provided
in question 5.
Page 1 of 12
SWU-NCG02-N0I Last revised 9/10/2015
NCG020000 N.0.1.
2) Location of facility producing discharge:
Facility Name
River Farms Mine
Facility Street Address
Facility City
Facility County
Harvey Point Road
Hertford State NC ZIP Code 27944
Perquimans County
Facility Contact
Timothy J. Corprew
Telephone No.
252 340-2523 Fax:
Contact E-mail
tjcorprew@hotmail.com
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). In Hertford, US 17 (Ocean Highway South) at stop light,
turn south on SR 1336 Harvey Point Road, mine entrance is 0.23-mile on the left.
4) Facility Location Coordinates:
Latitude 36.178433 deg N Longitude -76.456229deg W (degrees / minutes / seconds or decimal
degrees)
5) Consultant Information (if applicable):
Consultant: Ken Elliott
Consulting Firm: Elliott Consulting
Mailing Address: PO Box 112
City:
State: NC Zip Code: 27916
Phone: ( 252 ) 339-9021 Fax: ( 888 ) 637-6241
E-mail: ken@kenobx.com
Permits:
6) This NPDES Permit Application applies to which of the following:
Q New or Proposed Facility Date operation is to begin:
❑ Existing Date began mining:_
(Optional)
Staple Business Card Here
2016
7) 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
8) Provide a description of the types of minerals mined at this facility: Sand 8 topsoil
9) Is this a PROCESSING -ONLY facility for materials mined elsewhere? Q No ❑ Yes
10) Is this an inactive mine site? .
No
❑ Yes . If yes, have you certified to the Stormwaler Permitting Program that all portions of the site where
clearing, grading, and/or excavation activities have occurred have been stabilized?
❑ No ❑ Yes (If yes, the site may be eligible for "Dormant Status" and reduced BMP
inspections. See the General Permit.)
Page 2 of 12
SWU-NCG02.N01 Last revised 9110/2015
NCG020000 N.O.I.
11) Does this facility already have a valid Mining Permit from DEMLR's Land Quality Section?
No If no, please indicate the status of the Mining Permit application: Application submitted June 2016
❑ Yes If yes, please provide the Mining Permit number: Also provide a copy of
the DEMLR Mining Permit with this NPDES application.
12) Does this facility have any other NPDES permits?
O No
❑ Yes If yes, list the permit numbers for all current NPDES permits for this facility:
13) Are you applying for a discharge permit in the same location as a previously permitted mine?
Q No
❑ Yes If yes, specify permit number and mine name if known:
14) Does this facility have any Non -Discharge permits from DWR (e.g., recycle permits)?
E No
❑ Yes If yes, list the permit numbers for all current Non -Discharge permits for this facility:
15) Does total area of this mine site Include ready -mixed concrete plant and/or asphalt plant areas?
Q No
❑ Yes If yes, do they have separate NPDES stormwaler permits? El No ❑ Yes (provide permit
number(s) )
If not owned by the same company, who is the owner?
Development Activities and Buffers:
16) Will this mining operation precede development activities at this site?
Q No
❑ Yes
17) Is this mine located within one of the 20 Coastal Counties, and will it add more than 10,000 ftr of
impervious surface?
❑ Yes (to both)
Q No, this mine site IS in one of the 20 Coastal Counties but will NOT add 10,000 ftt of impervious surface.
❑ No, this mine site is NOT in any of the 20 Coastal Counties.
If this site is in one of the 20 Coastal Counties, you may be required to apply for an additional State
Stormwaler Permit. Check with your local Regional Office (see contact information and checklist below).
18) Is this mine located the Neuse, Tar -Pamlico, or Catawba River Basins, or the Randleman or Jordan
Water supply Watersheds?
No
❑ Yes If yes, what size stream buffers are included on site? ft. You must show buffers on site
plans. Also include information and plans showing diffuse flow through buffers as required.
Page 3 of 12
SWU-NCGO?-NOI Last revised 9t10/2015
NCG020000 N.O.I.
Discharge Points Receiving Waters $ Wetlands:
19) 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 will end up in? Perquimans River
To find the waterbody, please see the "MAPS" tab on http:ilportal.ncdenr.org/web/wci for a map of NC
Surface Waterbody Classifications.
Receiving water classification(s) for the waters: SC
If the site will discharge to a separate storm sewer system, name the operator of the separate storm sewer
system (e.g. City of Raleigh municipal storm sewer).
Discharge of wastewater to receiving waters classified as WS-II through Ws-V, or SA, must be
approved by the Division of Water Resources (DWR) or Division of Marine Fisheries
(DMF). DEMLR cannot grant coverage under NCG020000 without that approval. Also be advised that
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 General Permit
NCG02 but may be eligible for an individual permit.
20) Will this mine site discharge wastewater or stormwater to waters ciassifed as High Quality Waters
(HQW), Primary Nursery Areas (PNA), Trout (Tr) waters, or a class with a symbol like "+" or "@" that
denotes a special management strategy is in place?
8 No Yes, HQW' ❑ Yes, includes "+" or
Yes, PNA' 8 Yes, Trout (Tr)
21) Will this mine site discharge wastewater or stormwater to waters classified as Shellfish (SA) waters?
B No
❑ Yes, SA'
'For questions 19-20, be advised that the NCG02 General Permit limits the discharge volume of total combined
wastewaters to 50 percent of the receiving water in -stream flow under 7010 conditions in HQW waters (PNA and
SA waters are considered HQW by definition). You may be required to contact USGS to obtain a 7Q 10 flow.
22) Will this mine site discharge wastewater or stormwater to impaired waters, or to waters with an
approved "Total Maximum Daily Load" (TMDL)?
To find impaired waters, please see the "Impaired Waters" map on the "MAPS" tab on
http://portai.ned enr.orglweblwg.
To find approved TMDLs in North Carolina, please see DWR's Water Planning Section website:
O No
❑ Yes, these waters are impaired for (list pollutants):
❑ Yes, these waters have a TMDL for (list pollutants):
Page 4 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
23) List discharge points (outfalls) that convey discharge from the mine site (both on -site and off -site) and
location coordinates. Attach additional sheets if necessary, or note that this information is specified
on the site plan. Include proposed maximum daily flow rate for each wastewater outfall.
You must show all discharge points clearly on the submitted site plan. Be advised
that NCDEQ may require you to apply for an individual permit, based on proposed
discharge rates and receiving stream conditions (low flows, impairments, etc.)
Stormwater
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Stormwater Outfall No.
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Mine Dewatering
Mine Dewatering (Wastewater) Outfall No. 1-North
Proposed maximum flow rate: 0.10 mgd
Latitude (degrees/minutes/seconds or decimal degrees): 36,179283 deg
N
Longitude (degreesiminutes/seconds or decimal degrees): -76.458243 deg
W
Mine Dewatering (Wastewater) Outfall No. 2-South
Proposed maximum flow rate: 0.10 regal
Latitude (degrees/minutes/seconds or decimal degrees): 36.176437 deg
N
Longitude (degrees/minutes/seconds or decimal degrees): -76.456105 deg
W
Process Wastewater
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees): N
Longitude (degrees/minutes/seconds or decimal degrees): W
Process Wastewater Outfall No. Wastewater
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
Longitude (degrees/minutes/seconds or decimal degrees):
W
Page 5 of 12
S W U�NCG02�N01 Last revised 9/10/2015
NCG020000 N.O.I.
24) Help us understand what will happen to the dewatering water at this mine site:
❑ N/A— this mine is not dewatering at all and will not dewater in the future.
a) Will this mine be dewatering and discharging to waters of the state? (Answer only if dewatering)
❑ No
Q Yes If yes, where to? Q Surface Waters and/or Wetlands (on -site or off -site)
❑ Other (on -site or off -site) Describe:
b) Will this mine be dewatering but not discharging to waters of the state? (Answer only if dewatering)
B No
❑ Yes If yes, explain how you are dewatering, and where that water will be directed:
25) Are there wetlands or surface waters within 400' of the mine pit perimeter?
❑ No
Q Yes If yes, what distance are they from the mine pit perimeter? 100
26) Will mining operations require dewatering near wetlands or other waterbodies, and will dewatering
potentially impact any wetland's or other waterbodies?
❑ No, dewatering will not occur near (within 400') of wetlands or other waterbodies (e.g., streams, lake, etc.)
Q Yes, dewatering will be near wetlands or other waterbodies
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 (POM) Plan that has been approved by the
Department.
For sites that may drain wetlands — approval of a POM Plan may be required prior to coverage under
this permit. The POM Plan should be submitted to the appropriate Regional Office and in all cases 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 the end of the
application. Contact the Regional Office for questions specific to your mine.
27) Have youbeen required to obtain 4041401 Certification permits?
B No
❑ Yes If yes, please briefly describe below (include information such a required mitigation, BMPs,
setbacks, and/or 08M plans for on or off -site wetlands or other pertinent information). Attach other sheets as
necessary:
Page 6 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
26) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
Q No ❑ Yes If yes, please attach to application submission.
Stormwater BMPs and Vehicle Maintenance:
29) Does this facility employ best management practices for stormwater control?
0 No ❑ Yes If yes, please briefly describe:
No impervious surface on site.
No impervious surface on site. _
30) Does this facility have a stormwater Pollution Prevention Plan?
Q No ❑ Yes If yes, when was it implemented?
31) Are vehicle []Yes,
activities (VMA) occurring or planned at this mine site?
El No [Jres, IRYes,
es, will VMA area runoff discharge into the wastewater treatment system(s)?
No, VMA runoff will discharge separately through a stormwater outfall
VMA runoff will drain back to the mine pit or other wastewater system
Wastewater Treatment Facilities:
32) WIII mine dewatering occur? (Yes, we are asking about dewatering again.)
B No
Yes If yes, will the mine discharge this water? Yes
33) Will this facility wash mined materials?
8 No
Yes If yes, will the mine discharge this water?
34) Will discharges of process wastewater treatment systems occur (including possible recycle system
overflows)?
❑ No
❑ Yes If yes, describe what kind of systems:
35) WIII this facility employ chemical additives to flocculate suspended solids?
8 No
Yes If yes, provide the name, manufacturer, and the quantity of average daily usage of the chemical
additive (if known):
Note: Please see our website for a list of evaluated polyacrylamide (PAMS) products for use in North
Carolina: http://portal,ncdenr.org/web/irlconstructiori-storniwater
36) Will any of the wastewater treatment facilities at this mine overflow only during rainfall events that
exceed the 10-yr, 24-hr rainfall event?
❑ Yes If yes, which treatment systems are those?
Q No, all wastewater treatment facilities will discharge more frequently (i.e., during smaller rain events)
Page 7 of 12
SW U-NCGOZ-NOI Last revised 9110/2015
NCG020000 N.O.I.
37) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
0 No
❑ Yes
38) A wastewater treatment alternatives review is required by 15A NCAC 2H.0105 (c)(2)
for any new or expanding water pollution control facility discharges in North Carolina. You may
attach additional sheets. List the types of wastewater this mine site will discharge:
Q Mine Dewatering
❑ Process Wastewater (such as washing or recycle system overflows, other mining activity wastewater)
a) What wastewaters were considered for this alternatives review? 3 Dewatering ❑ Process W W
b) Connection to a Municipal or Regional Sewer Collection System:
i) Are there existing sewer lines within a one -mile radius? ..................................... Q Yes ❑ No
(1) If Yes, will the wastewater treatment plant (WWTP) accept the wastewater? .... ❑ Yes U No
(a) If No, please attach a letter documenting that the W WTP will not accept the wastewater.
(b) If Yes, is it feasible to connect to the W WTP? Why or why no Ho a sao saws. ur cod ain,�an,na,
Not feasible because of cost of installation
c) Closed -loop Recycle System (meets design requirements of 15A NCAC 2T .1000):
i) Are you already proposing a closed -loop recycle system (CLRS)? ......................... ❑ Yes [I No
(1) If Yes, for what type of wastewater at this mine site? Q Dewatering ❑ Process WIN
(2) If No, is this option technologically feasible (possible)? Why or why not?'
Not feasible because oT—cost oT installation
(3) If No, is it otherwise feasible to build a CLRS at this site? Why or why not?'
Not feasible because or cost of installation
(4) What is the feasibility of building a CLRS compared to direct surface water discharge?*
—
Not east e.
d) Surface or Subsurface Disposal System (e.g., spray irrigation):
i) Is a surface or subsurface disposal technologically feasible (possible)? ..................... ❑° Yes ❑ No
Why or Why no
ii) Is a surface or subsurface disposal system otherwise feasible to implement?*........
Why or Why not?'
c:.....
use
Q Yes ❑ No
Page 8 of 12
SWU-NCG02-NDI Last revised 9/10/2015
NCG020000 N.O.I.
iii) What is the feasibility of employing a subsurface or surface discharge as compared to a direct
discharge to surface waters?'
e) Direct Discharge to Surface Waters: Is discharge to surface waters the most environmentally sound
alternative of all reasonably cost-effective options for the wastewaters being considered?'
Q Yes ❑ No
f) If this review included all wastewater discharge types, would excluding some types (e.g. mine
dewatering) make any of the above non -discharge options feasible for some of the wastewaters?
❑ Yes 0 No
Feasibility should take into account initial and recurring costs. You may be asked to provide
further information to support your answers to these questions after the initial review.
Other:
39) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
0 No ❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
BNo [I Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
Q 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:
40) Is your facility providing appropriate secondary containment for bulk storage of liquid materials? (See
permit text for secondary containment requirements.)
0 No
❑ Yes
M) Does your site have an active landfill within the mining permit boundary?
Q No
❑ Yes If yes, specify type: ❑ LCID (Land Clearing and Inert Debris)
❑ Other:
Page 9 of 12
swu-Nrcoz-Noi Last revised snonots
NCG020000 N.O.I.
Final Checklist:
vt:��� This application will be returned as incomplete unless all of the following items have been included and
1�" 1 initialed for. Please show that the following required Information has been Included by initialing in each
space below.
x Fee of $100 made payable to NCDEO.
x Completed application and all supporting documents.
x Copy of the valid approved mining permit (MP) for the facility or indication of MP application status.
x Copy of a county map or other general location map that shows the mining site and nearest major roads.
X 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.
x 2 copies of large-scale (minimum 24" x 36") site plan with topographical lines with
all outfalls, applicable buffers and wetlands clearly delineated, receiving waters, and
100-year flood plain line if applicable.
A copy of your US Army Corps -approved wetland delineation if you marked yes" to question 27 above.
x A line drawing of the water flow through the facility or block flow diagram. A pictorial description of the
nature of any sources of water and any collection and treatment measures.
x 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
Storrnwater permit. Indicate the Regional Office Contact: Thom Edgerton
. Applicant has included a detailed list of impervious surface areas and percentages, sub -drainage
areas, and total drainage area.
x 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 Operation and
Monitoring (POM) Plan. An approved POM plan may be required prior to NCG02 issuance.
x 2 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 programs apply), applicable buffers, and access and/or haul roads).
x Pump dewatering size and information on its specifications.
_Well information (design, depths, maintenance).
x Physical monitoring for the wetlands areas.
x Settling pond sizing information, if applicable.
_Level spreader design, if applicable.
x Details about dewatering method.
_Cone of influence calculations.
x Description of measures to prevent erosion and flooding.
_Description and information about 401/404 permits that have been obtained.
_Copy of US Army Corps of Engineers wetland delineations or approved wetland delineation (if
applicable).
x I have contacted my local regional office about a POM Plan.
Regional Office Contact: Thom Edgerton Dale contacted: June 22, 2016
-OR-
_ I will not Impact any nearby wetlands, surface waters, or groundwaters by dewatering.
Page 10 of 12
SWU-NCG02-NOI Last revised 9/1012015
NCG020000 N.O.I.
Certification: North Carolina General Statute 143-215.6 b (i) 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 fact 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).
41) Signatory Requirements (per40 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 corporatiow 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. I 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. 1 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: Timothy J. Corprew
Title: \OWnef -
of
June 21, 2016
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to NCDEQ.
Page 11 of 12
SWU-NCG02-NOI Last revised 9/10/2015
NCG020000 N.O.I.
Mail the entire package to:
Stormwater Permitting Program
Division of Energy, Mineral and Land Resources
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Note
The submission of this document does not guarantee coverage under the NPDES
NCG02 General Permit. Upon review of the submittal, the Division may
determine that coverage under an individual permit is more appropriate. Also be
advised that renewed and continued coverage under NCG02 may be dependent
upon the permittee's compliance success and/or status of the receiving waters.
For questions, please contact the DEMLR7Land Quality Section Regional Office for your area.
DEMLR/Land Quality Section Regional Office Contact Information:
Asheville Office ......
(828) 296-4500
Fayetteville Office ...
(910) 433-3300
Mooresville Office ...
(704) 663-1699
Raleigh Office ........
(919) 791-4200
Washington Office ...(252)
946-6481
Wilmington Office ...
(910) 796-7215
Winston-Salem ......
(336) 776-9800
Central Office .........(919)
707-9220
Page 12 of 12
SWU-NCG02-NOI Lost revised 9/1012015
OPERATION AND MAINTENANCE PLAN
SAND MINE DEWATERING AND WATER LEVEL CONTROL STRUCTURE
Operator: Timothy J. Corprew, River Farms, LLC, 910 Wynne Fork Road, Hertford, NC 27944
Job Location: River Farms Mine, Harvey Point Road, Hertford, NC 27944
County: Perquimans County
Prepared by: Ken Elliott, consulting
Date: June 22,2016
This plan defines responsibilities for operating, inspecting, and maintaining equipment and structures
used for constructing and dewatering the River farms Mine safely, and that dewatering will not degrade
or negatively impact any wetlands or waters of the state.
Description and Operation of the River Farms Mine:
The River Farms Mine is a proposed 35.6-acre sand mine excavation operated by River Farms, LLC,
Timothy). Corprew, owner, in an 83.66-acre permit area located on Harvey Point Road. The site is
approximately .50 miles south of Hertford, NC, in the Town of Hertford Extraterritorial Jurisdiction area.
The permit area is on high sandy land, recently cleared, and currently under cultivation as a turf grass
farm. At this time Mr. Corprew is submitting an application with the NCDEQ Division of Energy, Mineral
and Land Resources to construct the sand mine and begin operation in July 2016. Mr. Corprew is also
submitting an application for a Special Use Permit from the Town of Hertford Planning Department for
construction of this mine.
Sand Mine Dewatering:
it will be necessary to dewater the excavation as it is being excavated to allow the excavating equipment
to enter the excavated area in order to safely and efficiently remove the sand from the pond bottom.
This will allow for full depth excavation and proper reclamation of the edges of the pond. It is the
intention of Mr. Corprew to only dewater the excavations as needed, which will not entail full-time
dewatering.
For excavation purposes, dewatering will occur roughly every 30 days which will allow excavating
equipment to remove approximately 150 loads of sand up to ground level where it will be stockpiled for
later use. When the stockpile is depleted from usage, the excavation area will again be dewatered, and
another quantity of sand will be excavated.
The operator plans to initially excavate two 1.82-acre ponds on the north and south sides of the
excavation area, both being located inside the main excavation area. Initially used as water sources for
the turf farm, the ponds will be later used as sedimentation ponds during the main pond excavation.
The ponds will be constructed with 3:1 slopes above normal groundwater height with full groundcover
installed, and 2:1 slopes below normal groundwater level. Once the small ponds are completed the rest
of the 35.6-acre main excavation will begin between the sediment ponds and the east end of the
excavation area. The edge of the sediment pond excavations and main excavation will be a minimum of
100 feet from the nearest wetlands. Use of the sediment ponds will forcibly hydrate the nearby
wetlands located north and south of the sediment ponds and excavation, and will minimize dehydration
of the swampy land.
The operator will install an 8-inch dewatering pump between the main excavation and the closest
sediment pond. Discharge from the dewatering pump will enter the sediment pond on its east end, and
there will be a constructed water height control device (see attached diagram) discharge point located
on the west end of the sediment pond. The discharge point will release clear water to a 25-foot-long
riprap-protected ditch, which then leads 75 feet to wetlands, then 1200 feet through wetlands to the
Perquimans River.
Water will be pumped from the main pond to the sediment pond by the 8in gasoline -powered transfer
pump operating at idle speed. Operator will utilize one or both sediment ponds and pumps as needed.
Estimated maximum flow from each pump will be 8300 gallons/hour, 0.20 mgd (4150 gallons / hour /
pump). It is the intention of Mr. Corprew to drop the water level in the main pond approximately 20 -
25 feet below normal ground level when needed.
The overflow from the sediment pond will be controlled by a water height control device constructed in
the west bank of the sediment pond in use. This control structure will allow water to flow through the
baffle into a 25ft long x 15" wide buried PVC pipe leading 25 feet to a 6ft wide drainage ditch running
north or south 75 feet to wetlands and then 1200 feet to the Perquimans River. For erosion control, the
overflow water will exit the water height control discharge pipe onto a 20ft long riprap-lined apron in
the ditch.
Time and distance will allow all sedimentation to occur to acceptable levels in the sediment ponds
before the overflow water reaches outfall and then the waters of the State. Water will have to travel a
minimum of 400 feet in the sediment pond to reach the overflow point, which will give enough surface
area to allow sufficient sedimentation to occur. There will be a minimum 2 feet of freeboard between
the water surface in the sediment pond and the top of the sediment pond bank. Stormwater drainage
will be unable to enter the sediment area due to the height of the sediment pond berm and damaging
sediment pond rates.
Sedimentation and Erosion Control
There is wetland swamp on the north and south side of the proposed excavation, located 100 feet from
the excavation edge, running parallel to the affected area boundary. The operator will establish a 50ft
undisturbed buffer (no disturbance of any kind) between the southwest boundary of the affected area
and the adjacent wetland area. This buffer will be maintained by the operator as pasture with grass and
pine tree ground cover.
In addition, there will be a 50ft unexcavated buffer (may contain roadways, stockpiles, and sediment &
erosion control devices) around the entire excavation area, between the excavation and the
undisturbed buffer.
Sediment pond overflow will drain into a constructed 6ft wide drainage ditch that leads 25 feet to a field
irrigation and drainage ditch, then 75 feet to wetlands and then 1200 to the Perquimans River.
Overflow into the outfall ditch will be stabilized by riprap installed in the ditch at the overflow (see
diagram) to prevent erosion of the ditch.
All erosion and sedimentation will remain inside of the permit area. The operator will construct and
maintain an 8ft wide x 2ft tall grass -covered sand berm around the perimeter of the current affected
area of the excavation during all phases of operation. During mining operations and dewatering, the
majority of the water leaving the excavation will remain inside of the permit area and will only overflow
through the sediment pond occasionally. The sediment pond will be approximately 10 feet deep, and
there is a sand layer below the bottom of the area. The porosity of the soil under the sediment pond
will allow most of the water pumped into the pond from dewatering to seep back into the ground
naturally. Any excess water overflowing from the sediment pond will flow downstream 1200 feet to
wetlands leading to Perquimans River.
Maintaining the Sediment Pond Overflow Control Structure, Settlement Pond and Ditches
Inspections and maintenance are required to obtain the intended function of safely dewatering the sand
mine, and to maintain the life of any adjacent wetlands or waters of the State. Items to inspect and
maintain during the anticipated 10-year life of the mine dewatering permit are:
• Inspect the water control structures regularly, especially following heavy rains and runoff, or
during periods of operation of the structure.
• Remove accumulated debris from the overflow control structure.
• Inspect the structure for excessive settlement or seepage.
• Inspect all components of the structure, including appurtenances, and repair or replace any
damaged items as needed.
• Inspect embankments, berms and appurtenant structures, and repair as needed.
• Repair any damage to vegetated areas or berms with compacted earth fill, reshaping, sodding,
reseeding and mulching as needed.
• Inspect riprap outlet stabilization structures in ditches regularly, replace dislodged rock as
necessary.
• Promptly repair all leaks in delivery facilities by replacing valves, fittings, gaskets, and worn or
damaged parts.
• Maintain all screens, filters, valves, timers and other electrical and mechanical equipment in
good operating condition, following manufacturer's recommendations
Monitoring the Process and Effects of Dewatering
Analytical and qualitative monitoring of mine dewatering wastewater will be in accordance with the
NCG020000 permit, as follows:
• All ponds in the River Farms Mine permit area will be inspected daily by the operator to identify
any abnormal conditions.
• All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches, and all
structures will be repaired immediately.
• Special inspections will be conducted immediately following severe storms, vandalism, and
other significant events.
• Dewatering process will be inspected daily during periods of dewatering the excavation.
• Overflow of wastewater process will be inspected daily during periods of dewatering the
excavation.
• Outflow of dewatering wastewater will be monitored quarterly at the overflow exit stabilization
structure for pH, settleable solids, turbidity, and total flow. Samples will be collected and tested
onsite for pH, and the remainder will be tested for the remaining parameters by a North
Carolina certified lab.
• Rain gauge data will be collected by monitoring rain gauge data monthly and after each rain
event.
Records
Data will be collected as follows:
• Data will be collected from samples taken from the wastewater point source discharge in
operation at the time.
• Point source discharge data: data from the site taken quarterly, date & time, general weather
conditions, pH of sample, status of process at point source, inlet or outlet, other DWQ required
data.
• Visual monitoring of adjacent wetlands and farmland for potential dehydration during mining or
dewatering activities will take place weekly. Solutions to any degradation caused by any mining
activity will include alteration of dewatering process. DWQ will be consulted as needed;
alterations to process will be recorded.
• Elliott Consulting will maintain the following records in a permanent file at the Elliott Consulting
office at PO Box 112, 202 Elliott Road, Aydlett, NC 27916: a record of all significant actions
taken; as -built drawings; permits; analytical results from sampling; and related material. Copies
of all inspections, monitoring reports and lab analyses shall be provided to NCDWQ on a regular
basis and as requested.
BMP Conditions
• The permitteewill utilize best management practices to ensure that dewatering the River Farms
Mine will not degrade or negatively impact any wetlands or waters of the State. BMP's will
include:
o Sediment pond outlet structure with flashboard riser located at edge of pond for ease of
maintenance.
All berms and erosion control and sedimentation control structures will be inspected for
damages monthly and within 24 hours after every storm event greater than 1.5 inches,
and all structures will be repaired immediately.
o Sediment pond outlet ditch will have rock lining or riprap stone layer to prevent erosion,
scour or sloughing of embankment
The permittee shall obtain authorization from the Director of the NCDEMLR and the Stormwater
Program chief prior to utilizing any chemical flocculants at Robert White Sand Mine.
Signed,
Ken Elliott
for River Farms, LLC
Timothy J. Corprew, owner
June 22, 2016
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