NCG140054_Concrete Supply Report_20240122

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Facility Name: Concrete Supply Co-West Plant Inspection#: 81618
Contact: Johnnie Alexander, Environmental Manager Permit#: NCG140054
Inspector: Michael Schley Receiving Stream: Stewart Creek
Inspection Date: 01/11/2024 Entry Time: 1:00 pm Exit Time: 2:00 pm SIC#:
L. SUMMARY
Facility Description:The Concrete Supply Co-West Plant is located at 3030 West Trade Street on approximately 4.1
acres.The facility produces ready-mix concrete.
File Review/History: Charlotte-Mecklenburg Storm Water Services (CMSWS)previously inspected this facility on 10/19/
2018 and a Notice of Violation was issued for the discharge of process water to the Charlotte MS 4.A follow-up inspection
was conducted on 11/5/2018 and the report was issued as satisfactory.
Inspection Summary:At the time of inspection,the Concrete Supply Co- West Plant was observed to be in compliance
with the City of Charlotte Storm Water Pollution Control Ordinance. Please see the inspection report for comments and
recommendations.
Site Inspection Deficiency Comments
Stormwater system (catch basins, Satisfactory Stormwater flows through the site via sheet flow to series of
inlets, outfalls, etc.) drainage channels and process water holding pits. The
holding pits recirculate the process water back to the site for
production. Stormwater and process water can be discharged
offsite via a hose which is connected to a pump and pH
adjustment filter. No stormwater pollution issues were
observed.
Erosion issues Satisfactory No stormwater erosion issues were observed.
Structural stormwater control N/A
measures(SCMs)
Illicit discharges/connections Satisfactory No illicit discharges or connections were observed onsite
during the inspection.
Aboveground storage tank(s)(ASTs) Satisfactory Assorted ASTs for concrete production were observed
and any associated venting and/or outdoors throughout the facility. A list of onsite ASTs
dispenser(s)—list tank size(s)and including their contents, locations, and containment was
contents observed in the SWPPP. No stormwater pollution issues
were observed.
Underground storage tank(s)(USTs) Satisfactory One 10,000-gallon diesel fuel UST is kept onsite. No
and any associated fill port area(s) stormwater pollution issues were observed with the
and dispenser(s)—list tank size(s) associated fill port or dispensers.
and contents
Outdoor material storage area(s) Recommendation Individual bays for aggregate storage of sand and gravel were
observed to be kept uncovered outdoors. Sediment from the
aggregate storage areas was observed on the interior roads
and at the entrance to the facility. Sweeping was being
conducted at the time of inspection. CMSWS recommends
continuing to implement good housekeeping procedures to
help protect water quality.
To report pollution or drainage problems call: 311 :T
CllARLOTTE_ http://stormwater.charmeck.org
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Site Inspection Deficiency Comments
Outdoor processing area(s) Satisfactory Concrete is processed outdoors. No stormwater pollution
issues were observed.
Loading/unloading area(s) Satisfactory Per facility staff, cement is unloaded onsite by rail car.
Concrete is loaded directly into trucks for delivery. No
stormwater pollution issues were observed.
Vehicle/equipment area(s)-fueling, Satisfactory Vehicle fueling is conducted at the fuel island.Truck and
maintenance,washing, storage, etc. concrete chute washing is conducted at designated areas
which drain to the facilities process water holding pits. Per
facility staff, no vehicle or equipment maintenance is
conducted at the facility. Vehicles and equipment are stored
uncovered outdoors. No stormwater pollution issues were
observed.
Oil/water separator and/or Satisfactory The facility has a pH adjuster attached to the outfall hose. No
pretreatment stormwater pollution issues were observed.
Waste storage/disposal area(s)- Recommendation Wood pallets and sealed totes awaiting disposal were
open tops,waste containers, scrap observed to be kept outdoors uncovered. One municipal
metal bins, etc. waste container was observed to be kept uncovered outdoors.
CMSWS recommends all outdoor waste be kept covered to
help protect water quality.
Food service area(s) N/A
Indoor material storage area(s) Satisfactory Four 55-gallon drums containing used oil, used coolant and
antifreeze,form release, and hydraulic oil were observed in
the oil room on spill pallets. No stormwater pollution issues
were observed.
Indoor processing area(s) N/A
Floor drains N/A
Spill response equipment Satisfactory Spill response equipment was observed throughout the
facility.
SWPPP Section Observed Comments
Does the facility have a Stormwater Satisfactory
Pollution Prevention Plan (SWPPP)?
Reviewed and updated annually Satisfactory The SWPPP was reviewed and updated on 3/17/2023.
Responsible party Satisfactory
General location (USGS)map Satisfactory
Detailed site map Satisfactory
Narrative description of industrial Satisfactory
processes
Feasibility study Satisfactory
Evaluation of stormwater outfalls(non Satisfactory A non-stormwater discharge evaluation was conducted and
-stormwater discharge evaluation) recorded on 1/9/2024.
Stormwater best management Satisfactory
practice(BMP)summary
Secondary containment plan (all Satisfactory
necessary secondary containment
provided and documented)
Records on every release from a Satisfactory
secondary containment system (for
the last 5 years)
Spill prevention and response Satisfactory
procedures(SPRP)
List of significant spills or leaks(for Satisfactory
the last 3 years)
To report pollution or drainage problems call: 311
CHARIAI'TE_ http://stormwater.charmeck.org
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EM
SWPPP Section Observed Comments
Solvent management plan (SMP) Satisfactory
Preventative maintenance and good Satisfactory
housekeeping program (PMGHP)
Facility inspections conducted as Satisfactory Facility inspections were conducted and recorded on 3/3/23,
required 6/9/23, 9/21/23, 10/31/23.
Employee training (provided and Satisfactory Employee training was provided and documented on 10/2/23.
documented)
Qualitative/Analytical Monitoring Observed Comments
Qualitative monitoring conducted as Satisfactory Qualitative monitoring was conducted and recorded on 6/1/23
required , 9/14/23, and 12/27/23 as required.
Analytical monitoring conducted as Satisfactory Analytical monitoring was conducted and recorded on 6/1/23,
required 9/14/23, and 12/27/23 as required.
Analytical monitoring for onsite N/A
vehicle and equipment maintenance
as required
Permit and Outfalls Observed Comments
Copy of permit and certificate of Yes NCG140054.
coverage onsite
All outfalls observed Yes No stormwater pollution issues were observed.
Number of Outfalls Observed 1
Representative outfall status N/A
documented by DEMLR
Annual no-exposure self re-certificatio N/A
n documented
To report pollution or drainage problems call: 311
CHARIAI'TE_ http://stormwater.charmeck.org
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