NCG020070_Cover Letter and Inspection Report_20240802

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ROY COOPER
Governor
ELIZABETH S.BISER 4
Secretary -
WILLIAM E. TOBY VINSON,JR NORTH CAROLINA
Interim Director EnvironmentatQuaW
August 2, 2024
Martin Marietta Materials, Inc.
Attention: Ron Kopplin
2235 Gateway Access Point, Suite 400
Raleigh,North Carolina 27607
Subject: Stormwater Inspection Report
NPDES Stormwater Permit Number or Certificate of Coverage Number NCG020070
Union County,North Carolina
Dear Mr. Kopplin:
Enclosed please find a copy of the Compliance Inspection Report for the inspection conducted at the Martin
Marietta-Bakers facility located at 2111 Rocky River Road on July 17, 2024. The report should be self-
explanatory, however, should you have any questions concerning these reports, please do not hesitate to
contact Lily Kay at [phone] or by email at [e-mail].
Sincerely,
Kathryn Peterson
Assistant Regional Engineer
Land Quality Section
LCK/KP
Enclosure: Inspection Report
cc: Stormwater Laserfiche, Certificate of Coverage NCG020070
MRO-Land Quality Section, Stormwater Files
' North Carolina Department of Environmental Quality Division of Energy,Mineral,and Land Resources
Mooresville Regional Office i 610 East Center Avenue,Suite 301 Mooresville;North Carolina 28115
704-235-2100

Compliance Inspection Report
Permit:NCG020070 Effective: 07/01/21 Expiration: 06/30/25 Owner: Martin Marietta Materials Inc
SOC: Effective: Expiration: Facility: Martin Marietta-Bakers
County: Union 2111 Rocky River Rd
Region: Mooresville
Monroe NC 28110
Contact Person:Jay Nivens Title: Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 07/17/2024 Entry Time 09:OOAM Exit Time: 10:15AM
Primary Inspector:Lily C Kay Phone: [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)
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Permit: NCG020070 Owner-Facility:Martin Marietta Materials Inc
Inspection Date: 07/17/2024 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
The Stormwater Pollution Prevention Plan (SWPPP) and related documentation was complete including employee training
records, inspection records, and the annual certification. The facility appeared well operated and maintained and no issues
were observed at the outfalls. If you have questions, contact me at [e-mail] or by phone at(704) 235-2137.
Page 2 of 3

Permit: NCG020070 Owner-Facility:Martin Marietta Materials Inc
Inspection Date: 07/17/2024 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? N ❑ ❑ ❑
#Does the Plan include a General Location(USGS) map? N ❑ ❑ ❑
#Does the Plan include a"Narrative Description of Practices"? E ❑ ❑ ❑
#Does the Plan include a detailed site map including outfall locations and drainage areas? E ❑ ❑ ❑
#Does the Plan include a list of significant spills occurring during the past 3 years? 0 ❑ ❑ ❑
#Has the facility evaluated feasible alternatives to current practices? M ❑ ❑ ❑
#Does the facility provide all necessary secondary containment? ❑ ❑ ❑
#Does the Plan include a BMP summary? M ❑ ❑ ❑
#Does the Plan include a Spill Prevention and Response Plan (SPRP)? 0 ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? M ❑ ❑ ❑
#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? E ❑ ❑ ❑
#Does the Plan include a Stormwater Facility Inspection Program? 0 ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? E ❑ ❑ ❑
Comment: The Stormwater Pollution Prevention Plan (SWPPP) and related documentation was complete
including employee training records, inspection records, and the annual certification.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring? E ❑ ❑ ❑
Comment: Qualitative monitoring records were available and complete.
Analytical Monitorinq Yes No NA NE
Has the facility conducted its Analytical monitoring? 0 ❑ ❑ ❑
#Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? 0 ❑ ❑ ❑
Comment: Analytical monitoring records were available and complete.
Permit and Outfalls Yes No NA NE
#Is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ ❑ ❑
#Were all outfalls observed during the inspection? ❑ ❑ ❑
#If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ❑
#Has the facility evaluated all illicit(non stormwater)discharges? 0 ❑ ❑ ❑
Comment: The outlet was observed with no issues.
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