HomeMy WebLinkAboutNC0078131_technical correction_20140924A ToL)A�
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Mr. Jim Freeman, City Manager
City of Havelock
P.O. Drawer 368
Havelock, North Carolina 28532
Dear Mr. Freeman:
John E. Skvarla, III
Secretary
September 24, 2014
Subject: Change -Page to Correct Error
NPDES Permit NC00
City of Havelock q g 13 l
Brown Boulevard Water Treatment Plant (WTP)
Craven County
The Division of Water Resources (the Division) was notified by David Hemenway (ORC) that there was an
error in your recently issued permit (July 21, 2014). We inadvertently inserted a limit for upstream and
downstream pH monitoring. In addition, we noticed that Total Nitrogen (TN), Total Kjeldahl Nitrogen
(TKN), Nitrate and Nitrite Nitrogen (NO3-N + NO2-N) Monitoring and Total Phosphors should have read
"Monitor & Report" in the limits column.
Accordingly, we hereby forward the modified permit pages to remove the limit for upstream and
downstream pH monitoring and the addition of the note "Monitor & Report" to the limits column for the
parameters TN, TKN and NO3 N + NO2-N to the effluent pages in Section A. (L). 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 permits required by the
Division of Energy, Mineral and Land Resources, the Coastal Area Management Act or any other Federal or
Local governmental permit that may be required.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: 919-807-63001 Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer — Made in part by recycled paper
Mr. Freeman
September 24, 2014
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If you have questions, or if we can be of further service, please contact Derek Denard at
[derek.denard@ncdenr.gov] or call (919) 807-6307.
pec Ily,�
Thomas A. Reeder, Director
Division of Water Resources, NCDENR
Enclosure: NPDES Permit NC0082949 (Corrected Pages)
he: Central Files
NPDES Program Files
WaRO Files/ Attn: David May
ec: ESS/Aquatic Toxicology Unit, Susan Meadows [susan.meadows@ncdenr.gov]
David Hemenway (ORC), City of Havelock [demenway@havelocknc.us]
NPDES Permit NCO078131
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge filter backwash via Outfall 001. Such discharges shall be limited
and monitored' by the Permittee as specified below:
l ' EFFLUENT - .:
CHARACTERISTIC
[PARAMETER CODES]
LIMITS
1
MONITORING RE UIREMENTS
Monthly
Average
Wily."Measurement
Maximum
Frequency
.;Sample
Type
Sample
Location 2
Flow 3 (MGD)
50050
Continuous
Recording
E
Total Suspended Solids (TSS) (mg/L)
C0530
30.0 mg/L
45.0 mg/L
2/Month
Composite
E
Total Dissolved Solids (TDS) (mg/L)
70295
Monthly
Composite
E
Turbidity (NTU)
00070
Monthly
Grab
E
4
Total Residual Chlorine
50060
13 4
µlb
2/Month
Grab
E
Dissolved Oxygen (DO) (mg/L)
00300
Monthly
Grab
E
Salinity (ppt)
00480
Monthly
Composite
E
Conductivity (umhos/cm)
00094
Monthly
Composite
E
pH (su)
00400
Not < 6.5 or > 8.5
standard units
2/Month
Grab
E
Ammonia Nitrogen (NH3) (mg/L)
C0610
Monthly
Composite
E
Total Copper (µg/L)
01042
Monthly
Composite
E
Total Chloride (mg/L)
00940
Monthly
Composite
E
Total Iron (µg/L)
01045
Monthly
Composite
E
Total Manganese (µg/L)
01055
Monthly
Composite
E
Total Zinc (µg/L)
01092
Monthly
Composite
E
TKN (mg/L)
N.03-N + NO2-N 5 (mg/L)
TN 5 (mg/L)
00625
00630
C0600
Monitor & Report
Monitor & Report
Monitor & Report
Quarterly
Quarterly
Quarterly
Composite
Composite
Composite
E
E
E
Total Phosphorus (mg/L)
C0665
Monitor & Report
Quarterly
Composite
E
Acute WET Testing
TGE3E
Quarterly
Composite
E
Dissolved Oxygen (DO) (mg/L)
00300
Monthly
Grab
U & D 7
Salinity (ppt)
00480
Monthly
Composite
U & D 7
Conductivity (umhos/cm)
00094
Monthly
Composite
U & D 7
pH (su)
00400
2/Month
Grab
U & D 7
Footnotes:
1. No later than June 1, 2015 begin submitting discharge monitoring reports electronically using NC
DWR's eDMR application system. See Special Condition A. (3.).
2. E = Effluent; I = Influent; U = upstream at least 50 feet from the outfall; D = downstream at least 50
feet from the outfall.
3. The Town will have until March 1, 2016, approximately 18 months from the effective date of this
permit, to install a continuous flow meter. Until then instantaneous measurements can be taken with
the duration of discharge to be noted in log books and a total daily discharge reported on the DMR.
Page 3 of 7
NPDES Permit NCO078131
4. The Division shall consider TRC effluent values reported below 50 µg/L to be compliant with the
permit. However, the Permittee shall continue to record and submit all values reported by a North
Carolina -certified laboratory method (including field certified), even if these values fall below
50µg/L.
5. For a given wastewater sample, TN = TKN + NO3 N + NO2-N, where TN is Total Nitrogen, TKN is
Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
6. Whole Effluent Toxicity (WET) testing - testing of Mysidopsis bahia shall be performed as 24-day
pass/fail test at 90% effluent concentration, during January, April, July and.October [See A. (2)].
7. If no stream flow is available to sample, indicate "no stream flow" on DMR.
Samples shall be taken at the outfall but prior to mixing with the receiving waters.
There shall be no discharge of floating solids or foam in other than trace amounts.
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