NC0043532_Email_20190712

Strickland, Bev
From: Hill, David A
Sent: Friday, July 12, 2019 11:13 AM
To: Basinger, Corey
Cc: Denard, Derek; Scheller, Roberto; Bai, Bing
Subject: RE: [External] RE: West Stanly WWTP pH Control
Corey,
The proposed temporary sodium hydroxide feed should not affect the facility's current limits or cause reasonable
potential to exceed any other water quality standards. I don't see the need to make any adjustments to the permit's
component list until we've issued an AtC and received an Engineer's Certification to add it permanently. Let me know if
you have any questions.
Thanks,
David Hill
Environmental Specialist II
NC DEQ / Division of Water Resources / Water Quality Permitting
NPDES Complex Permitting, Wastewater Branch
919 707-3612 office
919 707 9000 main office
david.hill(c)ncdenr.gov
Physical Address: 512 North Salisbury St.,Raleigh, NC, 27604
Mailing Address: 1617 Mail Service Center, Raleigh, NC, 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Denard, Derek <[e-mail]>
Sent: Thursday, July 11, 2019 11:19 AM
To: Hill, David A <[e-mail]>
Cc: Basinger, Corey <[e-mail]>; Scheller, Roberto <[e-mail]>
Subject: FW: [External] RE: West Stanly WWTP pH Control
David,
Could you please help them with this question regarding pH control and modification of their facility? By the way, they
propose using sodium hydroxide.
Thanks
Derek C Denard
Environmental Specialist
Compliance & Expedited Permitting Unit
N.C. Division of Water Resources
N.C. Department of Environmental Quality

919 707 3618 office
919 707 9000 main DWR
derek.denarda-ncdenr.gov
N. C. Division of Water Resources
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Denard, Derek
Sent: Wednesday, July 10, 2019 3:01 PM
To: Basinger, Corey <[e-mail]>
Cc: Scheller, Roberto <[e-mail]>
Subject: Re: [External] RE: West Stanly WWTP pH Control
No problem. I will track down the permit writer.
Derek
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From: Basinger, Corey
Sent: Wednesday, July 10, 2019 2:24:09 PM
To: Denard, Derek
Cc: Scheller, Roberto
Subject: FW: [External] RE: West Stanly WWTP pH Control
Derek,
Could you get the information below into the proper hands of someone on Julie's staff?
I am not sure who is working on this permit and Roberto is on vacation this week.
Many thanks,
Corey
From: Jimmy Holland [mailto:[e-mail]]
Sent: Wednesday, July 10, 2019 2:04 PM
To: Basinger, Corey <[e-mail]>
Subject: [External] RE: West Stanly WWTP pH Control
Corey,
To follow up on our conversation form this morning regarding the addition of a temporary pH control system
or the West Stanly WWTP I would like to know the best way to proceed forward.

Due to some changes in operations at the plant as described and defined in the report from Tom Tharrington
dated April 4, 2019, it was recommended that the chlorine feed rate be increased in an effort to reduce the risk
of failure to meet fecal coliform permit limits. The plant has instituted this increased feed rate and has
experienced some negative repercussions of this operational modification. The plant effluent in response to
this increase in chlorine feed rate has experienced issues with maintaining pH level with the permit
limitations, on the low end.
We would like to propose the installation of a temporary pH control system that would consist of chemical
feed metering pump and sodium hydroxide drum or tote that will allow for the addition to elevate the pH as
needed to meet permit limits.
We will incorporate this into the upcoming design package as a permanent solution, but this will allow for us
to go ahead and incorporate this into current plant operations.
What would be required from us for this to be incorporated as soon as possible. Please let us know what this
submittal package should include, look forward to hearing back form you on this.
Please feel free to contact me to discuss in greater detail.
James "Jimmy' W. Holland
Project Manager
WK Dickson & Co., Inc.
616 Colonnade Drive
Charlotte, NC 28205
Office: [phone]
Mobile: [phone]
Email: [e-mail]
www.wkdickson.com
1929-2019 1 CELEBRATING 90 YEARS OF SERVICE
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