NCG140218_Inspection Report_20220315

Compliance Inspection Report
Permit: NCG140218 Effective: 08/01/17 Expiration: 06/30/22 Owner : Thomas Concrete of Carolina Inc
SOC: Effective: Expiration: Facility: Thomas Concrete of Carolina Inc - Durham
County: Durham 2722 Angier Ave
Region: Raleigh
Durham NC 27712
Contact Person: Brooks Dickerson Title: Plant Manager Phone: [phone]
Directions to Facility:
System Classifications: SWNC,
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 03/15/2022 Entry Time 10:30AM Exit Time: 11:OOAM
Primary Inspector: Lauren Garcia Phone: [phone]
Secondary Inspector(s):
Brittany D Carson 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)
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Permit: NCG140218 Owner - Facility: Thomas Concrete of Carolina Inc
Inspection Date: 03/15/2022 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
pH samples have exceeded the benchmark consistently for several years. Records from 2020 show tier response sampling.
Monthly monitoring was conducted from January through December 2020, pH readings were consistently above 11. There
were also several TSS exceedances.
The facility should still be conducting monthly monitoring as part of a tier response based on the 2021 analytical results.
During the site visit, excess water was in use onsite. The basins were overflowing, and water was overtopping the basin and
flowing offsite. Facility personnel tested the pH of the water leaving the site and the pH measured 10. A pump was in use
onsite that was adding acetate to treat the water. The pump and the circulating water were located in an adjacent basin and
was not treating the water at the same rate that water was overflowing and leaving the site.
There were riser structures visible in one or two basins that appear to be completely submerged. It is likely there are some
obstructions, and the basins are not working as intended.
Changes will need to be made to properly manage stormwater and wastewater onsite. A follow up inspection will occur on
April 12, 2022 to determine next steps.
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Permit: NCG140218 Owner - Facility: Thomas Concrete of Carolina Inc
Inspection Date: 03/15/2022 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?
❑ ❑ ❑
# 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: The SWPPP has not been updated annually and appeared to have been updated
last in 2017.
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:
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:
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