NCG020912_Compliance Eval Inspection_20190424

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIE:L SMITH
Interim Director
NORTH CAROLINA
Environmental Quality
RECEIVED
APR 2 4 2019
Mr. Michael Dean Robinson
654 B Sussex Road LAND QUALITY
Kinston, NC 28501 MINING PROGRAM
Subject: Compliance Evaluation Inspection NPDES Stormwater Permit and Mining Permit
NPDES General Stormwater Permit NCG020000
Certificate of Coverage NCG020912
Mining Permit 31-23
Dupling Minerals Mine
Duplin County
Dear Mr. Robinson:
On March 28, 2019, Brian Lambe from the Wilmington Regional Office of the Division of Energy, Mineral,
and Land Resources (DEMLR), conducted a compliance evaluation inspection for Duplin Minerals Mine
located in Summerlins Crossroads Road, Duplin County, North Carolina. The site drains to Maple
Branch, which is currently classified as Class C, Sw Waters in the Cape Fear River Basin.
The following observations were noted during the DEMLR inspection (please see the attached
addendum for additional information about your permit):
1) Stormwater Pollution Prevention Plan (SPPP)
Submit a Stormwater Pollution Prevention Plan (SPPP) to this office.
Yes ❑ No ■
2) Qualitative Monitoring
Submit qualitative monitoring records to this office.
Yes ❑ No ■
3) Analytical Monitoring
Submit analytical monitoring reports to this office.
Yes ❑ No ■
Mining:
Please note the enclosed mining inspection report which details violations of the mining permit
requirements.
Thank you for your assistance and cooperation during this inspection. Please be advised that violations
of the NPDES Stormwater General Permit may be subject to a civil penalty assessment of up to
$25,000.00 per day for each violation. If you have any questions, comments, or need assistance with
understanding any aspect of your permit, please do not hesitate to contact Daniel Sams, PE or me at
[phone].
Attachments:
1. BIMS Inspection Checklist
2. Mining Inspection Report
cc: I IEE
oq.mwnau.w.su
cialist
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North Carolina Department of Environmental Quality I Division of Energy. Mineral and land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796.7215

Compliance Inspection Report
Permit: NCG020912 Effective: 01/20/17 Expiration: 09/30/20 Owner: Michael D Robinson DBA M D Robinson
Farms
SOC: Effective: Expiration: Facility: Duplin Minerals
County: Duplin
Summerlin Crossroads Rd
Region: Wilmington
Fair Bluff NC 28439
Contact Person: Michael Dean Robinson Title: Phone: [phone]
Directions to Facility:
from Kenansville go north on NC 11 for +l- 2.75 miles. turn left onto Summerlin Crossroads Rd, site +l- 2/5 miles down on left.
System Classifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 03/28/2019 Entry Time: 02:OOPM Exit Time: 03:OOPM
Primary Inspector: Brian P Lambe Phone:
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Mining Activities Stormwater Discharge COC
Facility Status: Compliant ® Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Pagel of 3

Permit: NCG020912 Owner - Facility: Michael D Robinson DBA M D Robinson Farms
Inspection Date: 03/28/2019 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Contact this office immediately and submit requested documents.
Brian. [e-mail]
910-796-7215
Page 2 of 3

Permit: NCG020912 Owner - Facility: Michael D Robinson DBA M D Robinson Farms
Inspection Date: 03/28/2019 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes No NA NE
Does the site have a Stormwater Pollution Prevention Plan?
❑
❑ ❑
# Does the Plan include a General Location (USGS) map?
❑
❑ ❑ N
# Does the Plan include a "Narrative Description of Practices"?
❑
❑ ❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
❑
❑ ❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
❑
❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
❑
❑ ❑ 0
# Does the facility provide all necessary secondary containment?
❑
❑ ❑ N
# Does the Plan include a BMP summary?
❑
❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
❑
❑ ❑ 0
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
❑
❑ ❑
# Does the facility provide and document Employee Training?
❑
❑ ❑ ■
# Does the Plan include a list of Responsible Party(s)?
❑
❑ ❑ ■
# Is the Plan reviewed and updated annually?
❑
❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
❑
❑ ❑ e
Has the Stormwater Pollution Prevention Plan been implemented?
❑
❑ ❑ ■
Comment: Provide Stormwater Pollution Prevention Plan to this office. The SPPP must be maintained
onsite.
Qualitative Monitorinq
Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? ❑ ❑ ❑
Comment: Submit all monitoring data for permit duration.
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ ❑
Comment: Submit all monitoring data for permit duration.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ❑ N ❑ ❑
# Were all outfalls observed during the inspection? N ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ■ ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ❑ ❑ ❑
Comment: Permit must be posted onsite.
Page 3 of 3

North Carolina Department of Environment and Natural Resources,
Division of Land Resources, Land Quality Section
MINE INSPECTION REPORT
(PERMITTED NINE)
1. MINE NAME Duplin Minerals Mine 2. MINING PERMIT # 31-23
3. OPERATOR Mr. Michael Dean Robinson
ADDRESS 654 B Sussex Road Kinston, NC 285014. COUNTY Duplin
6. PERMIT EXPIRATION DATE 11 /08/2016 7. RIVER BASIN Cape Fear
8. Person(s) contacted at site: None
9. Was mine operating at time of inspection? ® Yes ❑ No 10. Pictures? ® Yes ❑ No
11. Date last inspected: 09/12/2012 12. Any mining since last inspection? ® Yes ❑ No
13. Is the mine in compliance with the Operating Conditions of the Permit? ❑ Yes ®IN'o
If no, explain:
Operating Condition 3A: Sufficient buffer (minimum 50' undisturbed) shall be maintained between any
affected land and any adjoining waterway or wetland to prevent sedimentation of that waterway or wetland
from erosion of the affected land and to preserve the integrity of the natural watercourse or wetland.
Additional land has been disturbed within the buffer on the southeast corner of the mine.
OC 4A: Adequate mechanical barriers including but not limited to diversions, earthen dikes, sediment check
dams, sediment retarding structures, rip rap pits, or ditches shall be provided in the initial stages of any land
disturbance and maintained to prevent sediment from discharging onto adjacent surface areas or into any lake,
wetland or natural watercourse in proximity to the affected land.
o Containment berm is not installed in the southeast corner of the property. On the east side of the mine,
there has been breaching of the containment berm.
o No measures exist on the north side of the currently disturbed area to direct stormwater to the
dewatering basin or effectively treat the stormwater.
o Matting has not been installed on slopes of the entrance per plan detail.
® The weir has not been installed per plan on the dewatering basin. The basin is not effectively working
as there is no settling time or filtering.
© The apron below the settling basin is not installed.
® The settling basin is not sized with calculations.
OC413: All drainage from the affected area around the mine excavations shall be diverted internal to said
excavation. Several areas drain outwardly of the mine excavation.
OC 5: All mining permit boundaries shall be permanently marked at the site on 100' intervals unless the line
of sight allows for larger spacing intervals. Mine boundaries are not marked.
OC 6: The angle for graded slopes and fills shall be no greater than the angle, which can be retained by
vegetative cover or other adequate erosion control measure, structure, or device. The slopes of the entrance
are not stabilized, per the approved plans, by matting.
14. Is the mine in compliance with the Reclamation Conditions of the Permit? ® Yes ❑ No
If no, explain:
15. Did any of the above deficiencies result in offsite damage? ® Yes ❑ No If yes, describe the
type and severity of the damage: The entrance crossing has very steep slopes and is eroding into a stream.
Several areas on the east side of the mine have breached the mine containment berm.
16. Corrective measures needed and/or taken:
o Steps should be taken to continue to stabilize the entrance slopes.
o Install, repair, and maintain all measures as per approved plan.

a Demark all mine permit boundaries.
o Reclaim all areas that have been disturbed within the undisturbed buffer.
o Submit a revision detailing sizing of all dewatering basins.
17. Other recommendations and comments:
18. Is the Annual Reclamation Report +/- map accurate? ❑ Yes ❑ No (Explain) ® Not Reviewed
19. ]Follow-up inspection needed? ® Yes [
20. No. of additional pages of Inspection I
INSPECTED BY: Brian Lambe
Telephone No: 910-796-7215 Brian.Lam a'
Copy to file Vto
o Proposed date operator request date
0 . 21.Copy of Report sent to operator 4/4/2019
DATE 3/28/2019
:nr. siov
Copy to Mining Specialist