NCG080840_Tier III Update_20190829

Moore, James
From: O'Reilly, Kristen <[e-mail]>
Sent: Thursday, August 29, 2019 12:00 PM
To: Moore, James
Subject: [External] RE: [EXT] NCG0808940 Sweden Road
Thank you James. TSS on adjacent road is not a factor as outfall 1 only receives stormwater from pavement outside.the
shop.
I will get an update on the CIP project and let you know.
Kristen O'Reilly
Water Quality Program Specialist
Charlotte -Mecklenburg Storm Water Services
Cell: [phone]
From: Moore, James [mailto:[e-mail]]
Sent: Thursday, August 29, 2019 11:46 AM
To: O'Reilly, Kristen <[e-mail]>
Subject: [EXT] NCG0808940 Sweden Road
Thank you for your August 21, 2019 letter regarding the Tier III status at Sweden Road. Based on past inspections if you
can provide a map of the area to be repaved and commit that the repaving is in the capital improvement plan some
monitoring relief is possible. Also do you think that traffic on the adjacent road is impacting the TSS.
James Moore
Assistant Regional Engineer
Land Quality Division
Division of Energy, Mineral, and Land Resources
North Carolina Department of Environmental Quality
Phone: [phone] x2135
Fax: [phone]
Email: [e-mail]
Mailing Address: 610 E. Center Ave. Suite 301
Mooresville, NC 28115
"Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties

Charlotte -Mecklenburg
STORM
WATER
Services u
August 21, 2019
NC Department of Environmental Quality
Division of Energy, Mining, and Land Resources
Attention: Mr. Zahid Khan
610 E. Center Avenue, Suite 301
Mooresville, NC 28115
600 E. Fourth Street
Charlotte, NC 28202
Fax [phone]
Re: Tier III status of Outfall 1 at City of Charlotte Heavy Equipment Shop
NPDES Industrial Stormwater General Permit NCG080840
Dear Mr. Khan:
The City of Charlotte's Heavy Equipment Shop has exceeded its permit benchmark for total
suspended solids (TSS) at Outfall 1 four times during the current permit term.
The NPDES Industrial Stormwater General Permit NCG080000 standard for TSS is 100 mg/L.
The following summarizes the benchmark exceedances that have occurred.
Date
TSS (m /L)
12/20/2018
190
03/08/2019
130
04/02/2019
240
07/23/2019
770
In response to these exceedances, the shop has increased sweeping, hired a contractor to maintain
their BMPs, repaired pot holes, and placed a filter mat on the only inlet for outfall 1. The parking
lot is deteriorating severely and we suspect this is the largest contributor of TSS.
Unfortunately, all of the samples collected during this permit term were collected from the
surface of the lot before the inlet filter mat and therefore are not an accurate representation of
discharge offsite. Staff have been directed to collect samples from a new location which will
better reflect discharge after the filtration mat.
Please feel free to contact me at [phone] if you would like to discuss this issue further.
Sincerely,
1�a*At 0 eak
Kristen O'Reilly
Water Quality Program Specialist
City of Charlotte Storm Water Services
C& To report pollution or drainage problems, call: 311
http://stormwater.charmeck.org
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