WQ0039181_More Information (Requested)_20201013

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
AARON F. GOSS — PRESIDENT
CAROLINA MALT HOUSE, INC.
12969 STATESVILLE BLVD.
CLEVELAND, NORTH CAROLINA 27013
Dear Mr. Goss:
NORTH CAROLINA
Environmental Quality
October 13, 2020
Subject
Application No. WQ0039181
Additional Information Request
Carolina Malt House WWTF
Wastewater Irrigation System
Rowan County
Division of Water Resources' Central and Regional staff has reviewed the application package
received August 17, 2020. However, additional information is required before the review may be
completed. Please address the items on the attached pages no later than the close of business on November
12, 2020.
Please be aware that you are responsible for meeting all requirements set forth in North Carolina
rules and regulations. Any oversights that occurred in the review of the subject application package are
still the Applicant's responsibility. In addition, any omissions made in responding to the outstanding items,
or failure to provide the additional information on or before the above requested date may result in your
application being returned as incomplete.
Please reference the subject application number when providing the requested information. All
revised and/or additional documentation shall be signed, sealed and dated (where needed), with one
electronic copy submitted to my attention at the address below.
If you have any questions regarding this request, please do not hesitate to contact me at (919) 707-
3627 or [e-mail]. Thank you for your cooperation.
Sincerely,
D�ocu"S�igned by:
E42E88CDBD404A7...
Vivien Zhong, Environmental Engineer
Division of Water Resources
cc: Mooresville Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Mark Van Wagenberg — Carolina Malt House, Inc. (Electronic Copy)
Permit Application File WQ0039181
D Q
�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
NOR fH CA�in!.INA
1­4,torF,wm—ta�a"1 919,707.9000

Mr. Aaron F. Goss
November 12, 2020
Page 2 of 2
1. The submittal form states that the soil is able to hydraulically load 13,463 gallons per day (GPD). Whereas,
the current permitted flow is 3,400 GPD. Please explain the reasons for the increased flow and provide the
calculations to support the requested loading rate of 13,463 GPD. [15A NCAC 02T .0504(c)(3)]
2. Most soils reports will provide recommendations on maximum irrigation event hydraulic loading and/or
maximum weekly hydraulic loadings. These maximum hydraulic loadings provided in a soils report are
intended for a recommended maximum hydraulic loading under ideal conditions. These recommendations
are not intended to be used for determining the maximum annual loading rate for an irrigation field or zone.
Weekly hydraulic loading recommendations or per irrigation event hydraulic loading recommendations
provided by an LSS should be used for operational decisions (i.e. flexibility for loading as site and soil
conditions allow).
It was noted in the January 31, 2017 soils report that a weekly loading rate of 1.1 inch/week is recommended
for soil unit 1. Looking at the report's Ksat values, the 1.1 inches per week was derived from assuming
hydraulic loading occurs for 24 consecutive hours per day for 7 days [Ksat data of 0.00654 in./hr. x 24
hours x 7 days = 1.098 in./wk.]. To assume that the site and soil conditions are going to be ideal every day
of every week of the year for irrigation is a mistake, and would require hydraulic loading to occur around
the clock to prevent ponding and runoff based on the report. Furthermore, if ideal conditions were assumed
to be present for the entire year, 1.1 in./wk. adds up to 57.2 inches/year, which is far below the requested
76.48 inches/year. Please provide justification on the requested loading rate of 76.48 inches/year, such as
an updated soils report recommending an increase in annual loading. [15A NCAC 02T .0504(b)]
3. Please provide updated water balance calculations to verify the storage is sufficient for the proposed flow.
[15A NCAC 02T .0504(k)]