NC0086924_Change Page to Correct Error_20171027

Water Resources
ENVIRONMENTAL QUALITY
ROY COOPER
Govei not
MICHAEL S. REGAN
Sea elary
S JAY ZIMMERMAN
Du ecloi
October 27, 2017
Mr. David L. Clegg
Tyrrell County
108 S Water Street
Columbia, NC 27925-0449
Subject: Change -Page to Correct Error
NPDES Permit NCO086924
Tyrrell County
Reverse Osmosis WTP
Tyrrell County
Dear Mr. Clegg:
The Division of Water Resources (the Division) became aware of an error in your issued permit (effective
November 1, 2017). While finalizing the permit in the Division's database, it was noticed that the upstream
and downstream locations had not been defined in Section A. (1). After contacting Mr. Dennis Crane, the
ORC for the Tyrrell County Reverse Osmosis WTP, the Division has identified the upstream sampling
location as "Location B" as described in Section A. (4) and the downstream sampling location as "Location
M6" as described in Section A. (4).
Accordingly, we hereby forward the modified permit pages to amend your permit defusing the upstream and
downstream locations as Location B and Location M6, respectively, in Section A. (1). Please insert these
change pages into your existing permit and discard the old pages. We regret any inconvenience this causes
your organization.
Please note that 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 the Division of Water Resources or any other Federal,
State, or Local governmental permits that may be required.
If you have questions, or if we can be of further service, please contact Bnanna Young at
[e-mail] or call [phone].
Resp ctfully,
v S. Jay Zimmerman, Director
Division of Water Resources, NCDEQ
Enclosure NPDES Permit NCO086924 (Corrected Pages)
hc• Central Files
NPDES Program Files
Washington Regional Office
ec- Aquatic Toxicology Unit, Susan Meadows [susan.meadows@ncdenr gov]
Dennis Crane, ORC [bullsbayro@yahoo com]
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
https-//deq nc.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits

Permit NCO086924
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 the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall(s) serial number 001- Reverse Osmosis Reject Water.
Such discharges shall be limited and monitored' by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
[Parameter code]
DISCHARGE LIMITATIONS
MONITORING REQUIREMENTS
Monthly Daily
Average Maximum
Measurement Sample
Frequency Sample Type LocationZ
Flow (MGD)
50050
Continuous
Recording
E
Dissolved Oxygen
00300
Monthly
Grab
E, U, D
Salinity
00480
Monthly
Grab
E, U, D
Conductivity
00094
Monthly
Grab
E, U, D
pH
00400
6 8 s.0 :5 pH <_ 8.5 s.u.
2/Month
Grab
E, U, D
Total Residual Chlorine 3
50060
13 Ng/I
2/Month
Grab
E
Total Dissolved Solids
70295
Monthly
Grab
E
Turbidity
00070
Monthly
Grab
E
Total Copper
01042
3.70 pg/I 5.80 pg/l
Monthly
Grab
E
Total Chloride
00940
Monthly
Grab
E
Total Nickel
01067
Quarterly
Grab
E
Total Fluoride
00951
Monthly
Grab
E
Total Zinc
01092
Monthly
Grab
E
Ammonia Nitrogen
C0610
Monthly
Grab
E
Total Nitrogen (TN)
C0600
Quarterly
Grab
E
Total Phosphorus (TP)
C0665
Quarterly
Grab
E
Whole Effluent Toxicity 4
TGE3E
Monitor & Report
Quarterly
Grab
E
NOTES:
1 The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system
[see Special Condition A (5)].
2. Sample Locations. E — Effluent, U — Upstream at Location B, D — Downstream at Location M6, Instream
— see Part I, Special Condition A. (4) for locations and frequencies.
3. Limit and monitoring requirements apply only if the facility adds chlorine or chlorine derivatives to water
that is eventually discharged. The Division shall consider all effluent TRC values reported below 50 µg/l
to be in compliance with the permit. However, the Permittee shall continue to record and submit all values
reported by a North Carolina certified laboratory (including field certified), even if these values fall below
50 gg/1.
4. Acute Toxicity Monitoring (Mysid shrimp) 24hr P/F @ 90%, Quarterly; January, April, July, and October.
See Special Condition A. (2).
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.