NCG140039_NOI Compliance Inspection Report_20240611

ROY COOPER '3
Governor f 1
ELIZABETH S. BISER
Secretary *< ' `
WILLIAM E. TOBY VINSON,JR NORTH CAROLINA
Interim Director
Environmental Quality
June 11, 2024
Concrete Supply Co LLC
Attention: Henry Batten, Owner
P.O. Box 5247
Charlotte, NC 28299
Subject: Stormwater Inspection Report
NPDES Certificate of Coverage Number NCG140039
Union County, North Carolina
Dear Mr. Batten:
Enclosed please find a copy of the Compliance Inspection Report for the inspection conducted at the
Matthews facility located at 440 Seaboard Drive Matthews facility on May 16, 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(704) 235-2100 or by email at [e-mail].
Sincerely,
Vr
Kathryn Peterson
Assistant Regional Engineer
Land Quality Section
LCK/KP
Enclosure: Inspection Report
cc: Stormwater Laserfiche, NCG140039
MRO-Land Quality Section, Stormwater Files
� North Carolina Department of Environmental p Quality',Division of Energy,Mineral,and Land Resources
Mooresville Regional Office 1610 East Center Avenue,Suite 301 i Mooresville,North Carolina 28115
704-235-2100

Compliance Inspection Report
Permit:NCG140039 Effective: 07/01/22 Expiration: 06/30/27 Owner: Concrete Supply Co LLC
SOC: Effective: Expiration: Facility: Concrete Supply Co-Matthews PI
County: Union 440 Seaboard Dr
Region: Mooresville
Matthews NC 28105
Contact Person:Johnie Alexander Title: Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 05/16/2024 Entry Time 03:OOPM Exit Time: 03:30PM
Primary Inspector:Lily C Kay Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Ready Mix Concrete Stormwater/Wastewater Discharge COC
Facility Status: 0 Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCG140039 Owner-Facility:Concrete Supply Co LLC
Inspection Date: 05/16/2024 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: NCG140039 Owner-Facility:Concrete Supply Co LLC
Inspection Date: 05/16/2024 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? E ❑ ❑ ❑
#Does the Plan include a General Location(USGS) map? N ❑ ❑ ❑
#Does the Plan include a"Narrative Description of Practices"? N ❑ ❑ ❑
#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)? ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ❑ ❑ ❑
#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? E ❑ ❑ ❑
#Does the Plan include a Stormwater Facility Inspection Program? E ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented? 0 ❑ ❑ ❑
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? 0 ❑ ❑ ❑
Comment: Qualitative monitorinq records were available and complete.
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? N ❑ ❑ ❑
#Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? 0 ❑ ❑ ❑
Comment: Analytical monitoring records were complete and below benchmark limitations.
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? N ❑ ❑ ❑
#If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ N ❑
#Has the facility evaluated all illicit(non stormwater)discharges? 0 ❑ ❑ ❑
Comment: The facility appeared well operated and maintained and no issues were observed at the
outfalls.
Page 3 of 3

Compliance Inspection Report
Permit:NCS000329 Effective: 08/01/19 Expiration: 07/31/24 Owner: Ati Specialty Materials LLC-Alloy
SOC: Effective: Expiration: Facility: ATI Specialty Materials-Bakers South& North F
County: Union 3750 Alloy Way
Region: Mooresville
Monroe NC 28110
Contact Person:Joe Hinkle Title: Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On-Site Representative(s):
Related Permits:
Inspection Date: 05/16/2024 Entry Time 11:OOAM Exit Time: 12:50PM
Primary Inspector:Kathryn S Peterson Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Complaint Inspection Type: Compliance Evaluation
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page 1 of 3

Permit: NCS000329 Owner-Facility:Ati Specialty Materials LLC-Alloy
Inspection Date: 05/16/2024 Inspection Type:Compliance Evaluation Reason for Visit: Complaint
Inspection Summary:
Kathryn Peterson conducted a compliance inspection for ATI Specialty Materials- Bakers South and North Plant due to a
recent request for a permit renewal under NCS000329. Rick Moore, the Facility's Environmental Manager was present for the
inspection. The facility is currently in tier 2 status for copper benchmark exceedances at Outfalls 001, 002, and 003. The
facility should continue investigating the source of these exceedances in their stormwater discharge. It is recommended that
the facility takes a background rainwater sample to compare to their next sampled storm event results.
The SWPPP had all necessary components. The site is in compliance. All outfalls were observed at the time of inspection.
Page 2 of 3

Permit: NCS000329 Owner-Facility:Ati Specialty Materials LLC-Alloy
Inspection Date: 05/16/2024 Inspection Type:Compliance Evaluation Reason for Visit: Complaint
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? ❑ ❑ ❑
#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? ❑ ❑ ❑
#Does the facility provide all necessary secondary containment? ❑ ❑ ❑
#Does the Plan include a BMP summary? ❑ ❑ ❑
#Does the Plan include a Spill Prevention and Response Plan (SPRP)? ❑ ❑ ❑
#Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ❑ ❑ ❑
#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: Plan was last updated on 02/15/2024. Very well organized and easy to find information.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring? 0 ❑ ❑ ❑
Comment:
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: The facility remains in tier 2 status for Outfalls 001, 002, and 003. Mr. Moore said studies are
being conducted to find a way to get these values beneath the benchmark values.
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:
Page 3 of 3