NCG140140_Compliance Evaluation Inspection_20220208

STA7�
ROYCOOPER
Governor
EIdZABETH °S, DWI
secremy
BRKN WREINN NORTH CAROLINA
Dlre�-iur Environmental Qaality
February 8, 2022
Williams Ready Mix Products, Inc.
Attention: Michael Martin
2465 Old Charlotte Highway
Monroe, North Carolina 28110
Subject: Compliance Evaluation Inspection
Williams Ready Mix Products, Inc.
NPDES Certificate of Coverage — NCG140140
Union County, North Carolina
Dear Mr. Martin,
Enclosed please find a copy of the Compliance Evaluation Inspection Report
for the inspection we conducted at the Monroe Williams Ready Mix on February 3,
2022. Please note that in the stormwater inspection report summary we ask that you
continue to make improvements to the site to reduce the benchmark limitation
exceedances for TSS and pH.
The report should be self-explanatory; however, should you have any questions,
please do not hesitate to contact me at [phone] or by E-mail at
[e-mail].
Sincerely,
James Moore
Assistant Regional Engineer
Enclosure
c: Laserfiche
North Carolina Department of EnvironmentalQuallty I D!Wsion of Energy, Mlneraland Land Resources
:D:.' E Q �5
Mooresville Regional Office 1 610 East Center Avenue. Suite 3011 Mooresville, North Carolina 28US
o� /`� 704.6631699

Compliance Inspection Report
Permit: NCG140140 Effective: 08/01/17 Expiration: 06/30/22 Owner: Williams Ready Mix Products In
SOC: Effective: Expiration: Facility: Williams Ready Mix Products In
County: Union 2465 Old Charlotte Hwy
Region: Mooresville
Monroe NC 281107366
Contact Person: Michael Martin Title: Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 02/03/2022
Primary Inspector: Lily C Kay
Secondary Inspector(s):
Certification:
Phone:
Entry Time 10:30AM Exit Time: 11:20AM
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Ready Mix Concrete Stormwater/Wastewater Discharge COC
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Storm 'Water
(See attachment summary)
Page-1 of 4

permit: NCG140140 Owner - Facility: Williams Ready Mix Products In
Inspection Date: 02/03/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
The Stormwater Pollution Prevention Plan (SPPP) has been developed and implemented, but the employee training records
were missing. Qualitative and analytical monitoring has been conducted and the records appear complete. The site has
made several improvements to address the benchmark limitation exceedances. If you have questions, contact me at
[e-mail] or by phone at [phone].
Page 2 of 4

permit: NCG140140 Owner - Facility: Williams Ready Mix Products In
Inspection Date: 02/03/2022 Inspection Type: Compliance Evaluation Reason for visit: Routine
Stormwater Pollution Prevention Plan
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?
# 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?
Has the Stormwater Pollution Prevention Plan been implemented?
Yes No NA NE
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Comment: The Stormwater Pollution Prevention Plan (SPPP) has been developed and implemented, but
the employee training records were missing.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? ■ ❑ ❑ ❑
Comment: Qualitative monitoring records were available and complete.
Analytical Monitorinq
Has the facility conducted its Analytical monitoring?
Yes No NA NE
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# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ■ ❑ ❑ ❑
Comment: Analytical monitoring records were available but outlets 1 and 3 have had exceedances and
are in the Tier II response. Several improvements have been made to remediate these
exceedances including regrading the site and installing check dams to reduce TSS from the
aggregate bins. We discussed different methods for pH adjustment for the wastewater
discharge including carbon dioxide and recycling the water into the batch process.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ■ ❑ ❑ ❑
# 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? ❑ ❑ ■ ❑
Page 3 of 4

permit: NCG140140 Owner - Facility: Williams Ready Mix Products In
Inspection Date: 02/03/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Comment: Regrading the site has eliminated outlet 2 and improvements have been made to the other two
outlets to reduce benchmark limitation exceedances. The check dams at the aggregate bins
will require regular maintenance. Both of the valves for the secondarYcontainments were
open at the time of inspection. These valves need to remain closed until the discharge is
checked for a sheen and the visual inspection is documented.
Page 4 of 4