NCG020088_Dormant Approval_20220622

ROY COOPER
Gaver'nw
ELIZABETH S. BISE;R
seeretart
BRIAN WRENN
Director'
Hanson Aggregates Southeast Inc
Attn: Jack Garvey
PO Box 70
Rougemont, NC 27572
WIP t H CAROLINA
En vWonmental Quality
June 22, 2022
Subject: Exemption from Monitoring During Shut -Down (Site Dormancy)
Certificate of Coverage #NCG020088
Hanson Aggregates -Durham Quarry
Durham County
Mr. Garvey:
A Compliance Evaluation Inspection performed at the Hanson Aggregates -Durham
Plant in Durham, NC on June 21, 2022 by Thad Valentine of the Raleigh Regional Office
verified that no industrial activity was taking place at the time of the inspection. Your recent
request to keep the NCG020088 permit, but to discontinue stormwater and wastewater
monitoring is hereby approved, based on the following conditions:
• There shall be no industrial activities taking place, no stockpiles of raw materials
(to include chemical additives) stored on the site, or wastewater or stormwater
industrial discharges while the permittee is not monitoring.
• No wastewater shall be generated, and all wastewater treatment units shall be
cleaned, stabilized, and inactivated as to render them harmless to the
environment while the site is dormant.
Qualitative and analytical monitoring actions as described in Part E,F,G & H do
not have to be conducted - as long as the above conditions and all other permit
conditions and limitations are met, including:
o The annual permit fee must be paid. Failure to Vey the, annual permit
fee will he considered a violation of the subigct permit.
o The Stormwater Pollution Prevention Plan (SPPP) shall be kept
updated to reflect the status of the facility. Updates and conditions of
the SPPP of note are:
o The BMP Summary shall be reviewed and updated annually.
o Training programs shall be developed and training provided at
least once a year for facility personnel with responsibilities for:
North Carolina Department of Env IMnmental Quality I Division of Energy, Mineral and Land Resources
Raleigh Regional Office 1628 Mail Service Center 13800 Barrett Drive I Raleigh. North Carolina 276014
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90.791.4200

Dormant Status Approval
June 22, 2022
Page 2 of 2
spill response and cleanup, preventative maintenance activities,
and for any of the facility's operations that have the potential to
contaminate stormwater runoff.
o All aspects of the Stormwater Pollution Prevention Plan shall be
reviewed and updated on an annual basis. The annual update
shall include an updated list of significant spills or leaks of
pollutants for the previous three years, or the notation that no
spills have occurred. The annual update shall include written
recertification that the stormwater outfalls have been evaluated
for the presence of non-stormwater discharges. (Should non-
stormwater discharges be discovered, the permittee shall
contact this office as soon as possible but in no case greater than
24 hours or the next business day).
o Inspections of the facility and all stormwater systems shall
occur as part of the Preventative Maintenance and Good
Housekeeping Program at a minimum on a semi-annual
schedule.
This office must be notified in writing at least 30 days prior to commencing any
industrial activity on the site, even if updates or changes are temporary.
A copy of this letter must be maintained with the facility permit and associated
plans and records for the life of the permit.
Should you have any questions, please contact Thad Valentine at [phone].
Sincerely,
William H. Denton, IV, PE
Regional Engineer — RRO
Division of Energy, Mineral, and Land Resources — Land
Quality Section
Department of Environmental Quality
CC' Raleigh Regional Office Files
Stormwater Permitting Unit Files
Rev, 05222020