NC0073393_Approval_20200122

January 21, 2020

Vito Montaperto
Dana-Hill Corporation
1010 Dana Rd
Hendersonville, NC 28792

SUBJECT: Approval to perform timed composite sampling
Permit No. NC0073393
Dana Hill WWTP
Henderson County

Dear Permittee:

The Dana Hill wastewater treatment plant is granted permission to perform constant time/constant volume
composite sampling as defined in 15A NCAC 02B .0503 (4)(d) for permit reporting requirements in lieu of
flow-proportional sampling as requested. This permission is allowable because this facility has a design flow less
than or equal to 30,000 gallons/day and under that condition according to 15A NCAC 02B .0505 (c)(3)(B): The
Director may specify the methods of sample collection as to type of sample and type of composite sampling
required.

This approval is contingent upon your composite sampling consisting of aliquots of at least 100ml collected with
intervals not to exceed 20 minutes between aliquots. The Division reserves the right to change the method of
composite sampling again if we find reason to believe that this timed composite method is not producing
representative samples.
If you should have any questions, please do not hesitate to contact Daniel Boss with the Water Quality
Regional Operations Section in the Asheville Regional Office at 828-296-4500.

Sincerely,

G. Landon Davidson, P.G., Regional Supervisor
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDEQ

Ec: WQS ARO Server, Laserfiche
G:\WR\WQ\Henderson\Wastewater\Minors\Dana Hill 73393\Permission letter for timed composite sampling at Dana Hill.rtf
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