NC0062961_technical correction_20221201

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROCERS, JR.
Director
Ms. Samantha Wotell
RCS Properties, Inc.
4501 Tynecastle Hwy
Banner Elk, NC 28604
Dear Permittee:
NORTH CAROLINA
Environmental Quality
December 1, 2022
Subject: NPDES Permit NC0062961
Technical Correction
Tynecastle WWTP
Avery County
The Division recently issued the permit renewal for the subject facility. After the final
permit was signed, an error was noted in the permit. The dissolved oxygen daily minimum limit
was erroneously removed. This modification restores the correct dissolved oxygen limit. The
corrected pages are attached. Remove the erroneous pages from the permit and insert the
replacement pages in their place.
This permit modification is issued pursuant to the requirements of North Carolina General
Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Insert
the attached pages into your permit and discard the old pages.
If any parts, measurement frequencies or sampling requirements contained in this
modification are unacceptable to you, you have the right to an adjudicatory hearing upon written
request within thirty (30) days following receipt of this letter. This request must be in the form of
a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina
27699-6714). Unless such demand is made, this decision shall be final and binding.
This permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the
legal requirements to obtain other permits which may be required by any other Federal, State, or
Local governmental regulation. If you have any questions concerning these changes, please
contact Charles H. Weaver [[e-mail]].
ec: NPDES Unit (Laserfiche)
1:11C)1i,
o.r.mmmi of emmmnm.M,r 4wwy\�/el
Ix)
Richard E. Rogers, Jr., Director
Division of Water Resources
North CaoiiraDeoartnierit of Environrnenta Quality j Division of Water Resources
512 North Salisbury Street 1 1611 Mal Service Center I Raleigh, North Carolina27699-1611
919.707.9000

Permit NC0062961
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited, monitored and
reported' by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
Parameter Code
LIMITS
MONITORING REQUIREMENTS 1
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location 2
Flow (MGD)
50050
0.030 MGD
Continuous
Recording
Influent or
Effluent
BOD, 5-day (20°C)
C0310
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
Total Suspended Solids (mg/L)
C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
NH3 as N (mg/L)
(April 1 — October 31)
C0610
2.3 mg/L
11.5 mg/L
Weekly
Composite
Effluent
NH3 as N (mg/L)
(November 1—March 31)
C0610
4.4 mg/L
22.0 mg/L
Weekly
Composite
Effluent
Fecal Coliform (#/100m1)3
(geometric mean)
31616
200/100 ml
400/100 ml
Weekly
Grab
Effluent
Temperature (°C)
00010
Monitor & Report
Daily
Grab
Effluent
Dissolved Oxygen (mg/L)
00300
Daily average > 5.0 mg/L
Weekly
Grab
Effluent
Turbidity (NTU)
00070
Monitor & Report
Weekly
Grab
Effluent
pH
00400
> 6.0 and < 9.0
Standard Units
Weekly
Grab
Effluent
Temperature (°C)
00010
Monitor & Report
Weekly
Grab
Upstream &
Downstream
Dissolved Oxygen (mg/1)
00300
Monitor & Report
Weekly
Grab
Upstream &
Downstream
Footnotes:
1. The Permittee shall begin submitting Discharge Monitoring Reports electronically using the Division's eDMR
system [see A. (3.)].
2. Upstream = at least 50 feet above the outfall. Downstream = at least 200 feet below the outfall.
3. Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part II.
Section A.
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 7