NC0043559_Final Permit_20110523

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Permit NCO043 5 5 9
A . ( L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0927 MGD )
i
Beginning on July 1 , 201 land lasting until expansion above 0 . 27 MGD or expiration , whichever is sooner, the
Permittee is authorized to discharge treated wastewater from Outfall 001 . Such discharges shall be limited and
monitored b the Permittee as specified below :
� Y p
FFFLUENT EFFLUENT LIMITATIONS t . MONITORING REQUIREMENTS
ACTERISTI CS
y Y
t Sample Sample
ont Dai easuremen
Parameter Code Average Maximum Frequency '
, .. . .
Type . . . . Locationl
i
i
[Total
50050 0 . 27 MGD Continuous Recording Influent or Effluent
Recorded or
onthly Flow (MG) Monitor & Report Monthly Influent or Effluent
Calculated
l BOD , 5 -day, (20 ° C) 14 . 0 mg/L 21 . 0 mg/L Weekly Composite Effluent
i
C0310
Total Suspended Solids
C0530 3 0 . 0 mg/L 45 . 0 mg/L Weekly Composite Effluent
NH3 as N — Summer * 2 . 0 mg/L 10 . 0 mg/L Weekly Composite Effluent
C0610 g y p
NH3 as N — Winter *
C061 D 4 . 0 mg/L 20 . 0 mg/L Weekly Composite Effluent
Dissolved Oxygen
I > 6 . 0 mg/L Weekly Grab Effluent
00300
Fecal Coliform (geometric mean )
31616 200/ 100 mL 400/ 100 mL Weekly Grab Effluent
H p Not < 6 . 0 nor > 9 . 0 Weekly Grab Effluent
r
00400 Standard Units
Total Residual Chlorine
i
50060 17µg/L 21Week Grab Effluent
Temperature ( ° C)
00010 Daily Grab Effluent
TKN (mg/L) 3
00625
Monitor & Report (mg/L) 2/Month Composite Effluent
NO3 -N + NO2-N 3
00630 Monitor & Report (mg/L) 2/Month Composite Effluent
Total Nitrogen4 Monitor & g/
Report (mg/L)
C0600 p ( ) 2/Month Composite Effluent
TN Load 4'5 QM600 Monitor & Report (lb/mo) Monthly
QY600 Monitor & Report (lb/yr) Annually Calculated Effluent
QY600 8 , 138 lb/yr (effective 1/112016) Annually
Total Phosphorus
C0665 Monitor & Report (mg/L) 2/Month Composite Effluent
TP Load 4'1 QM665 Monitor & Report (lb/mo) Monthly (lb/mo) Calculated
QY665 566 lb/yr Annually (lb/yr) Calculated Effluent
Dissolved Oxygen Weekly Upstream &
Wkl
00300 y Grab Downstream
Temperature ( ° C) Weekl Grab Upstream &
y
00010 Downstream
�j
*Summer: April 1 — October 31
* Winter: November 1 — March 31
Footnotes :
1 . Upstream = at least 100 feet above the outfall . Downstream = at least 100 feet below the outfall .
2 . 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 µg/L .
3 . TKN is Total Kjeldahl Nitrogen , NO3 -N and NO2-N are Nitrate and Nitrite Nitrogen , respectively.
j 4 . TN or TP Load is the mass quantity of Total Nitrogen or Phosphorus discharged in a given period of time ( see Special Condition A . (5 . ) .
5 . Compliance with mass limits shall be determined in accordance with Special Condition A . (4 . ) .
6 . No later than 180 days after permit effective date , the permittee shall submit to the Division a Wastewater Management Plan ( see Section
A . ( 8 ) .
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS .
i

Permit NCO043559
A . (2 .) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (095 MGD )
During the period beginning after expansion above 0 . 27 MGD and lasting until expiration, the Permittee is authorized to
discharge treated wastewater from Outfall 001 . Such discharges shall be limited ' and monitored by the Permittee as specified
below :
i
EFFLUENT EFFLUENT LIMITATIONS ( MONITORING REQUIREMENTS
CS
n M
Sample Weekly , DailY easurement Sample
_
Parameter
Frequency . . T e Location '
P ter Code Average Average Maximum * Type
Flow
0.. 5 MGD « Continuous Recording . Influent or Effluent
50050
i Total Monthly Flow (MG) Monitor & Report Monthly Rec . or Calc . Influent or Effluent
I
BOD , 5 -day, (20 ° C) — Summer * 5 . 0 mg/L 7 . 5 mg/L
C0310 gWeekly Composite Effluent
BOD , 5 -day, (20 ° C) — Winter * 10 . 0 mg/L 15 . 0 mg/L Weekly Composite Effluent
i
C0310 g g y p
Total Suspended Solids
30 . 0 mg/L 45 . 0 mg/L Weekly Composite Effluent
C0530
NH3 as N — Summer *
C0610 2 . 0 mg/L 10 . 0 mg/L Weekly Composite Effluent
NH3 as N — Winter *
C0610 4 . 0 mg/L 20 . 0 mg/L Weekly Composite Effluent
i Dissolved Oxygen > 6 . 0 mg/L Weekly - Grab Effluent
00300 g y
Fecal Coliform (geometric mean) 200/ 100 mL 400/ 100
I 31616 mL Weekly Grab Effluent
pH Not < 6 . 0 nor > 9 . 0 Weekly Grab Effluent
I 00400 Standard Units y
Total Residual Chlorine 2 17 /L
50060 µg Dail
y Grab Effluent
Temperature ( IC)
00010 Daily Grab Effluent
TKN (mg/L) 3
00625 Monitor & Report (mg/L) Weekly Composite Effluent
NO3 _N + NO2 _N 3
00630 Monitor & Report (mg/L) Weekly Composite Effluent
Total Nitrogen'
C0600 Monitor & Report (mg/L) Weekly Composite Effluent
TN Load ',' QM600 Monitor & Report (lb/mo) Monthly
QY600 Monitor & Report (lb/yr) Annually Calculated Effluent
Y600 833 8 lb/yr (effective 1/112016) Annually
Total Phosphorus Monitor & Report /
C0665 p (mg L) Weekly Composite Effluent
TP Load 4, 5 QM665 Monitor & Report (lb/mo) Monthly (lb/mo) Calculated
Y665 566 lb/yr Annually (lb/yr) Calculated Effluent
Dissolved Oxygen Upstream &
00300 Weekly Grab Downstream
Temperature ( IC) FUpstream &
eekly Grab
00010 W Downstream
*Summer. April 1 — October 31
* Winter: . November 1 — March 31
I
Footnotes :
l . Upstream = at least 100 feet above the outfall . Downstream = at least 100 feet below the outfall .
2 . 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 µg/L .
3 . TKN is Total Kjeldahl Nitrogen , NO3 -N and NO2-N are Nitrate and Nitrite Nitrogen , respectively.
4 . TN or TP Load is the mass quantity of Total Nitrogen or Phosphorus discharged in a given period of time ( see Special Condition A . (5 . ) .
5 . Compliance with mass limits shall be determined in accordance with Special Condition A . (4 . ) .
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS .
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Permit NCO043 5 5 9
t
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A . (3 . ) NUTRIENT ALLOCATIONS
i
( a . ) The following table lists the Total Nitrogen (TN) and Total Phosphorus (TP) allocations assigned
to , acquired by , or transferred to the Permittee In accordance with the Jordan Lake nutrient
management rule (T15A NCAC 02B . 0270 ) and the status of each as of permit issuance . For
compliance purposes , this table does not supersede any TN or TP limit established elsewhere in this
permit or in the NPDES permit of a compliance association of which the Permittee is a Co -
Permittee Member .
Total Nitrogen Allocation
i
ALLOCATION: AMOUNT STATUS
ALLOCATI
ON TYPE , ' SOTJRCE DATE
Deliv Discharge
(Ib/yr41 (lb/yr)
:
Base Assigned by Rule 8/ 11 /09 6 , 83 6 8 , 13 8 Active
i
(T 15A NCAC 02B 00270 )
l TOTAL 69836 89138 Active
Footnote :
( 1 ) Nitrogen Transport Factor = 84 %
i
Total Phosphorus Allocation
_. : . ,
;: ,
„ .
.
ALLOCATION AMOU I NNT- . ; . •
.. , :. i '. . . ... ..
ALLOCATION T4 'P SOURCE DATE ' , . . S
Deliver d 1 r e sc a e
USt
p
/ ,
I
. , .- lb lb/ r, .
.. ...
Y
Base Assigned by Rule 8 / 11 /09 498 566 Active
(T 15A NCAC 02B 90270)
TOTAL 498 566 Active
Footnote :
( 1 ) Phosphorus Transport Factor = 88 %
(b . ) Any addition, deletion , or modification of the listed allocation ( s) (other than to correct typographical
errors) or any change in status of any of the listed allocations shall be considered a major
modification of this permit and shall be subject to the public review process afforded such
modifications under state and federal rules .
i
a ,
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Permit NC0043559 ,
A . (4 . ) ANNUAL LIMITS FOR TOTAL NITROGEN OR TOTAL PHOSPHORUS
( a . ) Total Nitrogen (TN) and Total Phosphorus (TP) allocations and load limits for NPDES dischargers in the
Jordan Lake watershed are annual limits and apply on a calendar year basis .
(b . ) For any given calendar year, the Permittee shall be in compliance with the annual TN (or TP) Load limit in
this Permit cif:
(1 . ) the Permittee ' s annual TN ( or TP ) Load is less than or equal to the effective limit, or
(11 . ) the Permittee is a Co -Permittee Member of a compliance association .
( c . ) The TN (or TP ) Load limit in this Permit may be modified as the result of allowable changes in the
4 Permittee ' s allocations .
(1 . ) Allowable changes include those resulting from purchase of TN ( or TP) allocation from an authorized
mitigation banker, the Ecosystem Enhancement Program, or other source allowed under applicable
regulations ; purchase , sale , trade , or lease of allocation between the Permittee and other dischargers ;
regionalization ; and other transactions approved b the Division ,
pp y
(118 ) The Permittee may request a modification of the TN ( or TP) Load limit in this Permit to reflect
allowable changes in its allocation( s) .
1
3 (A) Upon receipt of timely and proper application , the Division will modify the permit as appropriate
i
and in accordance with state and federal program requirements .
I
(B ) Changes in TN (or TP) limits become effective on January 1 of the year following permit
modification . The Division must receive application no later than August 31 for changes
E
proposed for the following calendar year .
(iii . ) Any requests for modification should be sent to .
NCDENR/ DWQ/ NPDES Programs
Attu : Jordan Lake Watershed Coordinator
I 1617 Mail Service Center
Raleigh, NC 276994 617
mittee of an approved compliance association on January 1 of a given
( d . ) If the Permittee is a member and co -per
year , its TN and TP discharges during that year are governed by that association' s group NPDES permit and
the limits therein .
(1 . ) The Permittee shall be considered a Co -Permittee Member for any given calendar year in which it is
identified as such in Appendix A of the association ' s group NPDES permit .
(ii . ) Association roster( s) and members ' TN and TP allocations will be updated annually and in accordance
with state and federal program requirements .
(iii . ) If the Permittee intends to join or leave a compliance association , the Division must be notified of the
proposed action in* accordance with the procedures defined in the association' s NPDES permit .
(A) Upon receipt of timely and proper notification, the Division will modify the permit as
appropriate and in accordance with state and federal program requirements .
(B ) Membership changes in a compliance association become effective on January 1 of the year
following modification of the association ' s permit .
a
(e . ) The TN and TP monitoring and reporting requirements in this Permit remain in effect throughout the term of
the Permit and are not affected by the Permittee ' s membership in a compliance association .
i
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Permit ,NCO043559
A . (5 . ) CALCULATION OF TOTAL NITROGEN OR TOTAL PHOSPHORUS LOADS
I
- - } ( a . ) The Permittee shall calculate monthly and annual TN Loads as follows :
(i . ) Monthly TN ( or TP) Load (lb/mo) = TN (or TP) x TMF x 8 . 34
where :
TN or TP = the average Total Nitrogen or Total Phosphorus concentration (mg/L) of
the composite samples collected during the month
TMF the Total Monthly Flow of wastewater discharged during the month
� g g
(MG/mo )
' 8 . 34 = conversion factor, from (mg/L x MG) to pounds
i
i (ii . ) Annual TN (or TP) Load Qb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the calendar year
r
(b . ) The Permittee shall report monthly Total Nitrogen and Total Phosphorus results (mg/L and lb/mo) in the
appropriate discharge monitoring report for each month and shall report each calendar ear ' s results (lb/Y r)
with the December report for that year .
A . 6 . NITROGEN OPTIMIZATION
(a . ) Not later than February 11 , 2010 , the Permittee shall .
(18 ) evaluate its treatment facilities and operations ,
(11 . ) identify further opportunities to improve and optimize nitrogen reduction in the existing facilities
p g g 1 ies
beyond those previously im lemented pursuant to G . S . 143 -215 . 1 B (d) , an
p p d
submit a report to the Division documenting its findings , proposing optimization measures , and
describing expected results .
(b . ) No later than six months following the Division ' s written acceptance of the report, or as provided in the
acceptance , the Permittee shall implement the proposed measures .
(c ) Beginning one year following the Division ' s acceptance of the report and continuing through 2016 , the
Permittee shall submit a progress report to the Division documenting the status of the proposed measures and
the nitrogen reductions achieved at the facility during the previous calendar year .
(do ) Reports shall be submitted to :
NCDENR/ DWQ/ NPDES Programs
Attn : Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, NC 276994 617
A. ( 7 . ) NUTRIENT MONITORING REOPENER
Pursuant to N . C . General Statute Section 143 -215 . 1 and the implementing rules found in Title 15A of t
p g he North
Carolina Administrative Code , Subchapter 2H , specifically, 15A NCAC 2H . 0112 (b) ( 1 ) and 2H . 0114 (a) , and Part
II, Sections B42 and B43 of this permit, the Director of DWQ may reopen this permit to require supplemental
nutrient monitoring of the discharge . The additional monitoring will be to support water quality modeling efforts
within the Cape Fear River Basin , and shall be consistent with a monitoring plan developed jointly by the Division
and affected stakeholders .
A. (8 ) BIOSOLIDS MANAGEMENT PLAN
Evaluate the current operations protocol for managing septa e/biomass in the treatmentsystem, includin gg
associated solids wasting and disposal ; to promote optimum treatment system performance . Please provide , in
detail , sludge storage capacity and exact method of sludge removal and/or disposal .
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