NCG500205_approval_20241016

Weaver, Charles
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Weaver, Charles
Wednesday, October 16, 2024 9:54 AM
'mark_rogers@campbel Is.com'
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'[e-mail]'; Fontenot, Katie; Brantley, Mark
NCG500205 - waiver for low pH values due to instream conditions.
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Fontenot, Katie
Brantley, Mark
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Delivered: 10/16/2024 9:54 AM
Delivered: 10/16/2024 9:54 AM
During a prior stormwater permit inspection, the Division noted that instream pH levels at your facility are affected by
naturally acidic groundwater and instream water conditions. As a result, the Stormwater program noted that Tier Two
requirements would not apply.
For consistency within the water quality program, please note that the lower pH limit of 6.0 standard units in General
Permit NCG500000 is provisionally waived due to instream conditions at your facility. We will not pursue enforcement
action for pH values that are naturally below the 6.0 standard unit level.
If you later determine that you can sample your facility's wastewater prior to it entering the stream, the 6.0 standard
units limit will apply to data from such samples. Contact Katie Fontenot in the Fayetteville Regional Office to discuss
sampling locations/techniques; she is copied on this message.
Carefully document where and when your samples are collected, so that the impact of instream pH levels can be
addressed.
Let me know if you have any questions.
Charles H. Weaver
Environmental Specialist II
Division of Water Resources
919-707-3616
charles.weaver(cDdeg.nc.gov
(mailing address) 1617 Mail Service Center, Raleigh, NC 27699-1617

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