NCG030503_Cover Letter and Inspection_20240722

ROY COOPER
Governor -
b
ELIZABETH S.BISER
Secretary ,
WILLIAM E. TOBY VINSON,JR NORTH CAROLINA
Interim Director
nvironrnental Quality
July 22, 2024
Sumitomo Electric USA Holding Inc
Attention: Terry Shutter
250 Murdock Road
Troutman,North Carolina 28166
Subject: Stormwater Inspection Report
NPDES Stormwater Permit Number NCG030503
Iredell County, North Carolina
Dear Mr. Shutter:
Enclosed please find a copy of the Compliance Inspection Report for the inspection conducted at the
Keystone Powdered Metal Company facility located at 250 Murdock 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 Kathryn Peterson at(704) 235-2201 or by email at kathryn.peterson(&deq.nc.gov.
Sincerely,
Kathryn Peterson
Assistant Regional Engineer
Land Quality Section
KSP
Enclosure: Inspection Report
cc: Beverly Welsh, EHS&T Manager 250 Murdock Road, Troutman,North Carolina 28166
Stormwater Laserfiche, NCG030503
MRO-Land Quality Section, Stormwater Files
North Carolina Department of Environmental Quality�Division of Energy,Mineral,and Land Resources
Mooresville Regional Office 1 610 East Center Avenue,Suite 301 I Mooresville,North Carolina 28115
t 704-235-2100

Compliance Inspection Report
Permit:NCG030503 Effective: 07/01/21 Expiration: 06/30/26 Owner: Sumitomo Electric USA Holding Inc
SOC: Effective: Expiration: Facility: Keystone Powdered Metal Company Troutman
County: Iredell 250 Old Murdock Rd
Region: Mooresville
Troutman NC 28166
Contact Person:Beverly Welch Title: EHS&T Manager 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 11:00AM Exit Time: 12:15PM
Primary Inspector:Kathryn S Peterson Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: E Compliant Not Compliant
Question Areas:
Storm Water
(See attachment summary)
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Permit: NCG030503 Owner-Facility:Sumitomo Electric USA Holding Inc
Inspection Date: 07/17/2024 Inspection Type:Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Kathryn Peterson conducted an inspection of Kestone Powdered Metal Company on July 17, 2024. Ms. Beverly Welsh, the
facility's EHS manager, was available via phone call at the time of inspection. Employees on site were able to locate the
SWPPP and show outfall locations. The facility is in compliance under the NCG03 Industrial Stormwater permit.
Outfall 005 is overgrown and needs to be tended to in order to properly access.
The facility is planning to close in December of 2024. Please submit a permit rescission request when the facility is no
longer in operation to terminate the certificate of coverage under NCG030503 ONLY when all industrial operations cease.
Page 2 of 3

Permit: NCG030503 Owner-Facility:Sumitomo Electric USA Holding 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? 0 ❑ ❑ ❑
#Does the Plan include a General Location(USGS) map? 0 ❑ ❑ ❑
#Does the Plan include a"Narrative Description of Practices"? E ❑ ❑ ❑
#Does the Plan include a detailed site map including outfall locations and drainage areas? 0 ❑ ❑ ❑
#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? 0 ❑ ❑ ❑
#Does the facility provide all necessary secondary containment? 0 ❑ ❑ ❑
#Does the Plan include a BMP summary? 0 ❑ ❑ ❑
#Does the Plan include a Spill Prevention and Response Plan (SPRP)? 0 ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? 0 ❑ ❑ ❑
#Does the facility provide and document Employee Training? 0 ❑ ❑ ❑
#Does the Plan include a list of Responsible Party(s)? 0 ❑ ❑ ❑
# Is the Plan reviewed and updated annually? 0 ❑ ❑ ❑
#Does the Plan include a Stormwater Facility Inspection Program? 0 ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? 0 ❑ ❑ ❑
Comment: SWPPP was complete and implemented at the time of inspection.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring? 0 ❑ ❑ ❑
Comment: All qualitative monitoring records were on site during the time of inspection.
Analytical Monitoring 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: All analytical monitorinq records were on site during the time of inspection.
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? 0 ❑ ❑ ❑
#If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ E ❑
#Has the facility evaluated all illicit(non stormwater)discharges? 0 ❑ ❑ ❑
Comment: All outfalls were observed at the time of inspection. Outfall 005 was overgrown and not easily
accessible, but all other outfalls were cleared and accessible. lllict discharge records were on
site during the time of inspection.
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