NCG020925_NOI Application_20180201

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NORTH CAROLINA
NPDES NCG020000 APPLICATION
James Cahoon Mine
Columbia, NC
Tyrrell County
State of North Carolina
CFNEED
FEB4��018
Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Land Quality Section — Stormwater Permitting Program
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
[phone]
Revised: 2017

ELLIOTT CONSULTING
January 28, 2018
NC Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Land Quality Section — Stormwater Permitting Program
1612 Mail Service Center
Raleigh, NC 27699-1612
To Whom It May Concern:
This NPDES Permit application is a request by Mr. James Cahoon to allow excavation and
dewatering of an 11.26 -acre pond, on property owned by Mr. Cahoon off US 64 East,
Columbia, NC, in Tyrrell County. The proposed permit area is in a flat, sandy, cultivated farm
area, 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 615 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 gated private road access. There will be minimum 30 -ft wide unexcavated
buffers on all sides of the permit area, minimum 60 -ft wide undisturbed buffers between
miring activity and adjacent wetlands.
Upon receipt of the approved permits from NCDEQ, Mr. Cahoon plans to excavate the
pond to an average depth of 30 feet below natural ground 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 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.
1VIr. James Cahoon does hereby request approval for this NPDES Permit and asks that it
be expedited as soon as possible. Mr. Cahoon appreciates your consideration of this mine
permit application.
Sincerely,
Ken Elliott
For James M. Cahoon
PO BOX 112 • AYD1 I 1 1. NOR'l11 CAROL INA • 27916
PIIONI. 252-339-9021 • I MALI KI Na KI:NOBX C.ObI

Division of Energy, Mineral and Land Resources if
Land Quality Section – Stormwater Permitting Program
National Pollutant Discharge Elimination System
NCG020000
NOTICE OF INTENT — General Permit Application
FOR AGENCY USE ONLY
Date Received
Year
Month Day
Certificate of Coverag
N 0 2
Check 4 t u t
Pernut AwgnLd to
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG020000:
STORMWATER ANDIOR 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 Morrow 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 James M. Cahoon
(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) James M. Cahoon
Street Address 110 Holly Ridge Road, PO Box 518
City Manteo State NC ZIP Code 27954
Telephone No. 252 473-5111, [phone] E-mail iamescahoon0605 _gmail.com
Alternate Contact Name` Alton J. Cahoon
Alternate Contact Telephone (if different)
'Alternate contact should be affiliated with the Owner/Operator.
in question 5.
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E-mail (if different)
Consultant Information can be provided
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2) Location of facility producing discharge:
Facility Name James Cahoon Mine
Facility Street Address 1.2 miles East on US 64
Facility City Columbia State NC ZIP Code 27925
Facility County Tyrrell County
Facility Contact James M. Cahoon
Telephone No. 252 473-5111, [phone] Fax:
Contact E-mail jamescahoon06O5@gmail 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). From the intersection of US 64 and Main Street in Columbia,
the mine entrance road is 1.28 miles east on the north side of the road.
4) Facility Location Coordinates:
Latitude 35.920756 deg N Longitude -76.221684 deg 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.( 888 ) 637-6241
E-mail: kenOkenobx
com
Permits:
6) This NPDES Permit Application applies to which of the following:
(Optional)
Staple Business Card Here
® New or Proposed Facility Date operation Is to begin: April 2018
❑ 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 2 2 2
8) Provide a description of the types of minerals mined at this facility:
Sand and topsoil
9) Is this a PROCESSING -ONLY facility for materials mined elsewhere? ® No ❑ Yes
10) Is this an inactive mine site?
® 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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11) Does this facility already have a valid Mining Permit from DEMLR's Land Quality Section?
N No If no, please indicate the status of the Mining Permit application: Application being processed
❑ 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?
® 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?
® 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)?
® 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?
N No
❑ Yes
If yes, do they have separate NPDES stormwater permits?
number(s)
If not owned by the same company, who is the owner? _
❑ No ❑ Yes (provide permit
Development Activities and Buffers:
16) Will this mining operation precede development activities at this site?
IN 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)
IN No, this mine site IS in one of the 20 Coastal Counties but will NOT add 10,000 ft2 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?
QJ 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.
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Discharge Points, Receiving Waters & Wetlands:
19) Receiving waters:
What is the name of the body or bodibs of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges will end up in? Scuppernong River Albemarle Sound
To find the waterbody, please see the "MAPS" tab on http://portal.ncdenr.org/webtwcl for a map of NC
Surface Waterbody Classifications.
Receiving water classification (s) for the waters:
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). NA
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 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* ❑ Yes, Trout (Tr)
21) Will this mine site discharge wastewater or stormwater to waters classified as Shellfish (SA) waters?
® 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 HOW waters (PNA and
SA waters are considered HOW 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:
IN 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 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
Proposed maximum flow rate: 0.024 mod
Latitude (degrees/minutes/seconds or decimal degrees): 35 921767 dea
N
Longitude (degrees/minutes/seconds or decimal degrees): -76.220216 deg
W
Mine Dewatering (Wastewater) Outfall No.
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
N
Longitude (degrees/minutes/seconds or decimal degrees):
W
Process Wastewater
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
Longitude (degrees/minutes/seconds or decimal degrees):
Process Wastewater Outfall No. Wastewater Description:
Proposed maximum flow rate:
Latitude (degrees/minutes/seconds or decimal degrees):
Longitude (degrees/minutes/seconds or decimal degrees):
N
W
N
W
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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
IN Yes If yes, where to? IN 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)
® 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
® Yes If yes, what distance are they from the mine pit perimeter? 125 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 4041401 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:
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28) Have you been required to obtain a wetland delineation certified by the US Army Corps of Engineers?
IN 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?
® No ❑ Yes If yes, please briefly describe:
30) Does this facility have a Stormwater Pollution Prevention Plan?
IN No ❑ Yes If yes, when was it Implemented?
31) Are vehicle maintenance activities (VMA) occurring or planned at this mine site?
IN No ❑Yes, If yes, 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? Into blue line stream to Scuopemong River & Alb. Sound
33) Will this facility wash mined materials?
® No
❑ Yes If yes, will the mine discharge this water?
34) Will discharges of process wastewater treatment systems occur (including possible recycle system
overflows)?
IN No
❑ Yes If yes, describe what kind of systems:
35) Will this facility employ chemical additives to flocculate suspended solids?
[N 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/construebon-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?
IN 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
4 138) A Wastewater treatment alternatives review is required by 15A NCAC 2H.0105 (y (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:
[N Mine Dewatering
❑ Process Wastewater (such as washing or recycle system overflows, other mining activity wastewater)
a) What wastewaters were considered for this alternatives review? [N Dewatering ❑ Process WW
b) Connection to a Municipal or Regional Sewer Collection System:
i) Are there existing sewer lines within a one -mile radius? .......................... . ❑ Yes IN No
(1) If Yes, will the wastewater treatment plant (WWTP) accept the wastewater? .... ❑ Yes ❑ 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?*
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 ® No
(1) If Yes, for what type of wastewater at this mine site? ❑ Dewatering ❑ Process WW
(2) If No, is this option technologically feasible (possible)? Why or why not?*
Would require dredge not available no room not cost effective.
(3) If No, is it otherwise feasible to build a CLRS at this site? Why or why not?'
Would require dredge not available no room not cost effective
(4) What is the feasibility of building a CLRS compared to direct surface water discharge?*
None
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?*
Would not be able to remove enough water from pit to be useful.
ii) Is a surface or subsurface disposal system otherwise feasible to implement?*......... ❑ Yes ❑ No
Why or Why not?*
Would reg uire. agreement with adjacent farm operation.
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iii) What is the feasibility of employing a subsurface or surface discharge as compared to a direct
discharge to surface waters?*
None not cost effective
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?*
® 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 IN 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?
® No ❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
® 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.)
IN No
❑ Yes
41) Does your site have an active landfill within the mining permit boundary?
[N No
❑ Yes If yes, specify type. ❑ LCID (Land Clearing and Inert Debris) ❑ Other
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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.
Fee of $100 made payable to NCDEQ.
Completed application and all supporting documents.
tr. Copy of the valid approved mining permit (MP) for the facility or indication of MP application status,
-_�7 Copy of a county map or other general location map that shows the mining site and nearest major roads.
Copy of USGS topographic map showing the mining site and surrounding areas, or other map that clearly
shows site location in relation to nearby streams, wetlands, and other waters, etc.
2 copies of large-scale (minimum 24" x 36") site plan with topographical lines with
all outfalls, applicable buffers and wetlands clearly delineated, 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.
I��S A line drawing of the water flow through the facility or block flow diagram. A pictorial description of the
�`C- nature of any sources of water and any collection and treatment measures.
( If mine site is in one of the 20 Coastal Counties:
• Applicant has checked with the appropriate regional office to verify the need for a Coastal State
Stormwater permit. Indicate the Regional Office Contact: WARO Thom Edgerton
Applicant has included a detailed list of impervious surface areas and percentages, sub -drainage
areas, and total drainage area.
If the mine is dewatering and near wetlands, or may otherwise impact surface waters or groundwater,
include the following and contact Your local regional office about a Pumping Operation and
Monitoring (POM) Plan. An approved POM plan may be required priorto NCG02 issuance.
Ir�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).
1�Pump dewatering size and information on its specifications.
Well information (design, depths, maintenance).
t�- Physical monitoring for the wetlands areas
Settling pond sizing information, if applicable.
Level spreader design, if applicable.
Details about dewatering method.
Cone of influence calculations.
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).
I e-l I have contacted my local regional office about a POM Plan.
Regional Office Contact WARD, Thom Edgerton . Date contacted: Jan 18 2018
-OR-
I will not impact any nearby wetlands, surface waters, or groundwaters by dewatering.
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Certification: North Carolina General Statute 143-215.6 b (1) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other
document filed or required to be maintained under this Article or a rule implementing this Article, or who knowingly makes a false
statement of a material 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.0 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: James M Cahoon
Title Owner
LirJe�� January 25, 2018
(S gnature of Applicant) (Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to NCDEQ.
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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.
DEMLRlLand Quality Section Regional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office ..
[phone]
Mooresville Office ...
[phone]
Raleigh Office .......
[phone]
Washington Office ...[phone]
Wilmington Office ...
[phone]
Winston-Salem ......
[phone]
Central Office .........(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
JAMES CAHOON MINE, COLUMBIA, NC
Operator: James M. Cahoon, PO Box 518, 110 Holly Ridge Road, Manteo, NC 27954
Job Location: 1.2 miles east of Columbia, NC on US 64
County: Tyrrell County
Prepared by: Ken Elliott, consulting
Date: January 18, 2018
This plan defines responsibilities for operating, inspecting, and maintaining equipment and structures
used for constructing and dewatering the James Cahoon Mine safely, and that dewatering will not
degrade or negatively impact any wetlands or waters of the -state.
Description and Operation of the James Cahoon Mine:
The James Cahoon Mine is a proposed 11.26 -acre sand mine excavation operated by James Cahoon,
landowner of the site parcel, in a 16.97 -acre permit area located off US 64 East, approximately 1.2 miles
east of Columbia, NC, in Tyrrell County. The permit area is on medium-high sandy land and is currently a
cultivated field owned by James Cahoon. Currently Mr. Cahoon is applying to the NCDEQ Division of
Energy, Mineral and Land Resources for a mining permit to construct the sand mine and begin operation
in February or March 2018. Mr. Cahoon is not required to apply for a Use Permit from the Tyrrell
County 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 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. Cahoon to only dewater the excavation 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 construct two excavated ponds, a 6.11 -acre east pond and a 5.15 -acre west pond
on this property, leaving a 60 -ft wide buffer in between the ponds, containing a 30 -ft wide easement and
two 15 -ft wide unexcavated buffers with berms.
The operator initially plans to construct a 0.69 -acre excavated pond as a sedimentation pond located
inside the northeast corner of the main east excavation area. Once this excavation has been completed,
the rest of the 6.11 -acre excavation of the east pond will begin approximately 30 feet south of the
sediment pond. The edge of the sediment pond excavation and main excavation will be 120 feet from the

nearest wetland forest. Use of the sediment pond and blue -line stream will forcibly hydrate the nearby
wetlands located east of the sediment pond and excavation, and will minimize dehydration of the wetland
forest.
The operator will install a 6 -inch dewatering pump between the east pond and sediment pond at the
northwest end of the east excavation. Discharge from the dewatering pump will enter the sediment
pond on its west end, and there will be a constructed water height control device (see attached
diagram) discharge point located on the east end of the sediment pond. The discharge point will release
clear water by pipe to an existing 75 -foot -long riprap-protected ditch, leading to an existing blue -line
irrigation and drainage ditch, then 2.5 miles by ditch to the Scuppernong River, and then 5.0 miles to the
Albemarle Sound.
The blue -line irrigation and drainage ditch leading from the sediment pond is a designated C -channel
ditch, 15 -ft wide by 4.5 -ft deep, which is a part of the Columbia Special Use Water Management District,
regulated by the Tyrrell County Water Management Committee. The channel widens, 0.75 -mile from the
sediment pond discharge point, to a designated F -channel ditch, 45 -ft wide by 6 -ft deep before it
reaches the Scuppernong River (map attached)
Water will be pumped from the east pond to the sediment pond by the 6 -in gasoline -powered transfer
pump operating at idle speed. Estimated maximum flow from the pump will be 2,000 gallons/hour,
operating 12 hours per day, 0.024-mgd. It is the intention of Mr. Cahoon to drop the water level in the
east 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 northeastern bank of the sediment pond. This control structure will allow water to flow through the
baffle into a 25ft long x 15" wide buried PVC pipe leading west 25 feet to a 6ft wide existing field
drainage ditch running north to the blue -line drainage ditch, and then on to Scuppernong River and
Albemarle Sound. 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 before the overflow water
reaches outfall and then the waters of the State. Water will have to travel a minimum of 250 feet 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 and
damage the sediment pond rates, due to the height of a surrounding 2 -ft tall sediment pond berm.
Sedimentation and Erosion Control
There is a designated palustrine forested seasonal saturated wetland north and east of the proposed
excavation, located 120 feet from the excavation edge, running parallel to the northern and eastern
permit area boundary. The operator will establish a 60 -ft wide undisturbed buffer (no disturbance of

any kind), adjacent to, and inside of, the permit boundary. This buffer will be maintained by the
operator as grass and shrub ground cover.
In addition, there will be a 30 -ft wide 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 an existing operator -maintained 6 -ft wide field ditch that leads
75 feet to the blue -line stream irrigation and drainage ditch, then 2.5 miles to the Scuppernong River.
Overflow into the field ditch will be stabilized by riprap installed in the field 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 10 -ft wide x 2 -ft 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, most
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 6 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 2.5 miles to the Scuppernong
River.
When excavation of eastern pond is complete, operator will proceed with excavation of the western pond
in the same manner as that of the eastern pond, dewatering the pond into the existing sediment pond
and overflowing into the field drainage ditches at the same discharge point, along with construction of
3:1 and 2:1 slopes as needed.
During excavation, dewatering wastewater from both ponds will be pumped into the single sediment
pond, and water will overflow through the single discharge point on the east side of the sediment pond.
When final excavation of both ponds is complete, dewatering will be discontinued, and pump shut down
& removed. Groundwater will refill the excavation to normal seasonal high groundwater level. Operator
will then excavate & remove the land between the east excavation and sediment pond to maximum depth
feasible without dewatering the excavation, allowing formation of one pond totaling 6.11 acres. Western
pond will be 5.15 acres.
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 James Cahoon 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 James
Cahoon 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 James Cahoon Mine.
Signed,
Ken Elliott
for James Cahoon, owner
January 18, 2018

Temporary Gravel Construction Entrance / Exit Details
Practice Standards and Specifications 6.06
James Cahoon Mine
Columbia, NC
Tyrrell County
Flguro sbf3a Grave entramweA keeps eadiment from leaving the construction sd(k(mod@ed fm -n Va'"04
Graveled pad located at entrance to access roads at James Cahoon Mine, where traffic moves directly
onto US 64 East.
Thickness: Q inches minimum
Width: 210 feet wide
Length: 50 feet minimum as per diagram above.
Aggregate Size: 2, — 3 inch coarse slag
Maintenance: Maintain the gravel pad to prevent mud or sediment from leaving the construction site.
Periodic top dressing with 2 -inch stone will occur as needed during the life of the permit. After rainfalls,
immediately remove all objectionable materials spilled, washed, or tracked onto public roadways.
Ken Elliott, consuilting
January 28, 2018

Sediment Fence (Slit Fence) Construction Details:
Practice Standards and Specifications 6.62
James Cahoon Mine
US 64 East, Colwlnbia, NC
Tyrrell County
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A temporary permeable barrier erected on small disturbed areas to capture sediment from sheet flow. It is made of
filter fabric buried at the bottom, stretched and supported by steel posts.
Planning: Silt fence will be installed along the perimeter of a 12ft wide access road when crossing wetland areas.
Narrow width of fenced area will allow only shallow pools to form behind fence while promoting deposition of sediment
and preventing sedimentation into adjacent wetlands. Ends of fence will be curled uphill in "J" pattern to prevent end
flow. Stabilized outlets will be provided to protect the fence system and release storm flow that exceeds the design.
Design considerations: Silt fence will be constructed of extra -strength synthetic filter fabric. Height of fence will not
exceed 2 feet above natural ground level, and will be constructed from a continuous roll to minimize joints. All joints
will be fastened at a support post with 4 feet minimum of overlap. Extra -strength filter fabric will be fastened to road
side of steel posts (installed 2 feet deep) every 6 feet (every 8 feet if using standard strength filter fabric with wire mesh
backing) and fastened with wire ties. Trench will be excavated along inside of fence approximately 4 inches wide by 8
inches deep, into which 12 inches of fabric will be placed along the bottom and side of the trench. Trench will be
backfilled and compacted.
Maintenance: Inspect sediment fence every week and after each rainfall. Make any required repairs immediately.
Replace any collapsed, damaged, or decomposed fence promptly. Remove all fencing materials and unstable sediment
deposits and bring the area to grade and stabilize it after the contributing drainage area has been properly stabilized.
S
Ken Elliott, consulting
January 28, 2018

Rock Dam in Ditch Construction Details
Practice Standards & Specifications 6,63
James Cahoon Mine
US 64 East, Columbia, NC
Tyrrell County
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PROFILE
CHECK DAM DETAIL
A rock embankment located to capture sediment in a naturally formed drainage feature. The purpose of a rock dam is
to trap sediment on the construction site, and prevent off-site sedimentation in streams, lakes and drainageways.
Planning: Used where it is desirable to have the top of the structure serve as the overflow outlet. A long weir crest is
designed to keep flow depth shallow and discharge velocity low. Inside face of the dam will be covered with gravel to
reduce rate of seepage so that a sediment pool will form during runoff, draining slowly through the dam.
Design considerations:
• Maximum height — weir elevation 6 feet above ditch grade.
• Embankment—top width 2 feet minimum, side slope$ maximum 2:1 upstream slope, maximum 3:1 downstream
slope. Rock abutments will extend to an elevation at,ieast 1 foot above the spillway.
• Outlet protection — rock apron minimum 1.5 feet thick will extend downstream from the toe of the dam a
distanrfe equal to the height of the dam to prevent channel erosion.
• Rock fill — rock will be well graded erosion resistant stone with a minimum dso size of 12 inches, Class II
downstream layer of riprap and Class I upstream layer of riprap.
Maintenance: Check sediment basin after each rainfall, remgve sediment when sediment accumulates to Y2 the height
of the dam. Check structure for erosion or rock displacement weekly or after each significant (1/2 inch or greater)
rainstorm and repair immediately.
Ken Elliott, consulting
January 28, 2018

Water Height Control: Construction Details
Half -pipe Water Level Control with Flash Board Risers
NRCS Code 587
James Cahoon Mine
US 64 East, Columbia, NC
Tyrrell County
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DESCRIPTION
A structure in a water management system that conveys water, controls the direction or rate of flow, maintains a desired
water surface elevation or measures water. Water height control structure is standard structure used by agrjcultural and
horticultural farms in North Carolina to raise or lower water height in ditches and ponds per need (MRCS). Water height
control structure to be installed in the northeast corner of the sedimentation pond berm at the James Cahoon Mine.
Overflow to be directed down stabilized ditch to nearby blue -line stream, eventual oti flow to Scuppernong River and
Albemarle Sound.

PURPOSE
To convey water from one elevation to a lower elevation within, to, or from a water conveyance system, such as a ditch,
channel, canal, or pipeline designed to operate under open channel conditions. Typical structures: drops, chutes,
turnouts, surface water inlets, head gates, pump boxes, and stilling basins (NRCS). This water management system will
be used to maintain a maximum water surface elevation in the sedimentation pond at the James Cahoon Mine, US 64
East, Columbia, NC. Sedimentation pond is a part of the dewatering management system of the James Cahoon Mine,
used to remove settleable matter and turgidity from mine dewatering wastewater.
CONSTRUCTION
Structure consists of 26'x 3' horizontal galvanized steel culvert running under the sedimentation pond berm. A vertical 6'
half pipe 52" x 30" is attached on the north end of the culvert with stacked flash boards allowing adjustable height of the
water level in the sedimentation pond. Water flows over the flash boards and into the discharge pipe and down the rip -rap
stabilized ditch.
Overflow ditch is lined with riprap for 20 feet down its length. Existing slopes adjacent to the culvert are heavily grassed
with natural grass and weeds with no erosion present.
MAINTENANCE
Structures will be checked and necessary maintenance, including removal of debris, shall be performed after major
storms and at least semi-annually.
Ken Elliott, consulting
January 28, 2018

Discharge Outfall Outlet Protection: Construction Details
Practice Standards and Specifications 6.41, 6.31, 6.15
James Cahoon Mine
US 64 East, Columbia, NC
Tyrrell County
6.41 Outlet Stabilization Structure
6.31 Riprap and Paved Channels
6.1S Riprap
Pipe Outlet to Well-defined
Channel
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Design depth 'It's=Q
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Filter layer, gravel
or tabric
Riprap lined apron located at end of mine dewatering overflow pipe to prevent scour and undermining
in existing ditch, and to absorb the impact of the water flow and reduce the velocity to non-erosive
levels, before flow reaches wetlands.
Riprap Apron Size: Overflow pipe discharges directly into well-defined channel. The apron will extend
across the channel bottom and up the channel banks to the top of the bank. Length of apron will be 20 -
feet downstream to maintain velocity control of maximum 2.0 feet per second.
Grade: Apron will have zero grade and no overfill at end of apron.
Alignment: Apron will be straight throughout entire length if possible. If curve is necessary to align the
apron with the receiving channel, the curve will be located in the upstream section of the riprap.
Materials: Riprap will consist of a well graded mixture of NCDOT Class A (2" to 6") stone or slag.
Thickness: Minimum thickness of riprap will be 1.5 times the maximum stone diameter.

Filter: Operator plans to install a layer of heavy duty silt fence filter cloth between the riprap and the
underlying soil to prevent soil movement into or through the riprap. Filter cloth will extend to the top of
both channel banks, and edges will overlap 12 inches. Upstream end will be buried 12 inches and
downstream end will be buried if necessary.
Maintenance: inspect riprap outlet structures weekly and after significant rainfall events to see if any
erosion around or below the riprap has taken place, or if stones have become dislodged. Repair all
damage immediately. Maintain all vegetation adjacent to the channel in healthy condition to prevent
scour or erosion during out -of -bank flow. Control weeds and brush growing in the riprap by cutting.
Ken Elliott, consulting
January 28, 2018

Berm Construction Details
James Cahoon Mine
Columbia, NC
Tyrrell County
Narrow -based berm
The narrow -based berm is the most common berm having a top of 2 feet (0.6 m) and side slopes of two
horizontal: 1 vertical. This berm is the most economical to build as it requires the least material. The
steep side slopes of this type of berm eliminate the possibility of working on it with farm machinery.
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Berm Construction
The berm construction comprises of the scraping back of the topsoil from the area where the berm and
storage basin is to be built. A subsoil material, free of stones, rubble, stumps etc. and with at least 10%
clay should be used to construct the berm. The material for the berm may be obtained from the area
behind or in front of the berm location or moved from a borrow pit located elsewhere on the farm. An
earth mover will be required to move material from a pit located a distance away while a bulldozer
would be used if material is located in the berm area.
The berm material is to be placed in layers and compacted as each layer is added. After the berm has a
final shape the sides of the berm should also be compacted.
Emergency Overflow
To provide for larger -than designed peak flows, an overflow system is used, namely:
"The level -top vegetated berm crest" which provides for very flat berm top so that the water will
overflow along the berm length in a thin layer so as not to create erosion problems.
Ken Elliott, consulting
January 28, 2019

Temporary Seeding Details
Practice Standards and Specifications 6.10
James Cahoon Mine
US 64 East, Columbia, NC
Tyrrell County
Definition: Planting rapid -growing annual grasses, small grains, or legumes to
provide initial, temporary cover for erosion control on disturbed areas.
Purpose: To temporarily stabilize denuded areas that will not be brought to final
grade for a period of more than 21 calendar days.
Temporary seeding controls runoff and erosion until permanent
vegetation or other erosion control measures can be established.
Planning Considerations: Temporary seeding provides protection for no more than 1 year, during
which time permanent stabilization should be initiated,
Specifications: Complete grading before preparing seedbeds, and install all necessary erosion
control practices. If soils become compacted during grading, loosen them to a
depth of 6-8 inches.
SEEDBED PREPARATION
Good seedbed preparation is essential to successful plant establishment. A good
seedbed is well pulverized, loose, and uniform.
Liming—Apply lime according to soil test recommendations. Apply limestone
uniformly and incorporate into the top 4-6 inches of soil. Soils with a pH of 6 or
higher need not be limed.
Fertilizer—Base application rates on soil tests. Incorporate into the top 4-6
inches of soil. If a hydraulic seeder is used, do not mix seed and fertilizer more
than 30 minutes before application.
Surface Roughening—Groove or furrow slopes steeper than 3:1 on the contour
before seeding.
PLANT SELECTION
Select an appropriate species or species mixture for seeding in late winter and
early spring.

SEEDING
Evenly apply seed using a cyclone seeder (broadcast), drill, cultipacker seeder,
or hydroseeder. Hand broadcasting is not recommended because of the
difficulty in achieving a uniform distribution. Small grains should be planted no
more than 1 inch deep, and grasses and legumes no more than 1/2 inch.
MULCHING
The use of an appropriate mulch will help ensure establishment under normal
conditions, and Is essential to seeding success under harsh site conditions. If the
area being mulched is subject to concentrated waterflow, as in channels,
anchor mulch with netting.
Maintenance: Reseed and mulch areas where seedling emergence is poor, or where
erosion occurs, as soon as possible. Do not mow. Protect from traffic as
much as possible.
Ken Elliott, consulting
January 28, 2018

Permanent Seeding Details - Berm
Practice Standards and Specifications 6.11
James Cahoon Kline
US 64 East, Columbia, NC
Tyrrell County
Definition: Controlling runoff and erosion on disturbed areas by establishing perennial vegetative
cover with seed. Purpose being to reduce erosion and decrease sediment yield from disturbed areas, to
permanently stabilize such areas in a manner that is economical, adapts to site conditions, and allows
selection of the most appropriate plant materials.
Application: Areas to be stabilized with permanent vegetation must be seeded or planted within 15
working days or 90 calendar days after final grade is reached, unless temporary stabilization is applied.
Soil preparation: Complete all final grading of berm and loosen any compacted soils. Apply lime
and fertilizer according to soil test recommendations. Groove or furrow slopes on the contour before
seeding.
Vegetation: For immediate stabilization of disturbed soil, use nurse crop varieties, along with
temporary mulching. Then seed with varieties providing cover for up to 3 years with a maintenance
program, leadingtoward varieties providing permanent coverage.
Seeding: Evenly apply seed using a cyclone seeder (broadcast), drill, cultipacker seeder, or
hydroseeder. Hand broadcasting is not recommended because of the difficulty in achieving a uniform
distribution. Small grains should be planted no more than 1 inch deep, and grasses and legumes no
more than 1/2 inch.
Mulching: The use of appropriate mulch will help ensure establishment under normal conditions,
and is essential to seeding success under harsh site conditions. If the area being mulched is subject to
concentrated waterflow, as in channels, anchor mulch with netting.
Maintenance: Reseed and mulch areas where seedling emergence is poor, or where erosion occurs, as
soon as possible. Do not mow. Protect from traffic as much as possible
Ken Elliott, consulting
January 28, 2018