HomeMy WebLinkAboutNC0048879_Draft Permit_20180815 ROY COOPER
+;.;
Governor
MICHAEL S. REGAN
Secretary
Water Resources LINDA CULPEPPER
Environmental Quality Interim Director
August 15, 2018
Mr. Jamie Revels
Utilities Director
Town of Cary Public Works and Utilities Department
PO Box 8005
Cary,North Carolina 27512
Subject: Draft NPDES Permit Renewal
Permit NC0048879
North Cary WRF
Wake County
Grade IV Biological WPCS
SIC Code 4952
Dear Mr. Revels:
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please
review this draft carefully to ensure thorough understanding of the requirements and conditions it
contains. There are several changes from the existing permit, including the following:
• Based on the reasonable potential analysis (RPA) results, quarterly monitoring for copper
and zinc has been removed from the permit [See A.(1)].
• Based on the reasonable potential analysis (RPA)results,both the fluoride limit and
monthly monitoring have been removed from the permit [See A.(1)].
• The Town of Cary reported Total Silver at less than detection, with a detection level<5
µg/L in the three Effluent Pollutant Scans and the Discharge Monitoring Results. The
Town's permit discharge requirement is 0.061 µg/L for Total Silver. DWR's laboratory
identifies the Practical Quantification Limit(PQL) for Total Silver as 1 µg/L. In
accordance with 15A NCAC 2B .0500, all data generated for Total Silver shall be
reported to the lower reporting level of the procedure. The Town should test for Total
Silver down to the recommended PQL and as long as the Town reports effluent Total
Silver less than the PQL or a lower reporting level of the procedure, the Town will be
considered in compliance with its permit discharge requirement(limit). The Division can
modify the permit and add a limit or add limits during the next renewal if this regulation
is not satisfied. Quarterly monitoring of total silver has been added to this permit [See
A.(1.)].
• The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by
the NC Environmental Management Committee(EMC) on November 13, 2014. The US
EPA subsequently approved the WQS revisions on April 6, 2016 with some exceptions.
The NC Division of Water Resources NPDES Permitting Unit is required to implement
the new dissolved metal standards in all permits public noticed after April 6, 2016. The
Nothing Compares=L.,_
State of North Carolina I Environmental Quality
1611 Mail Service Center I Raleigh,North Carolina 27699-1611
919-707-9000
new standards for most metals include acute standards. Further, the freshwater standards
for several metals are expressed as the dissolved form of the metals, and seven metals
have hardness-dependent equations. As a result,the NPDES Permitting Unit will need
site-specific effluent hardness data and instream hardness data,upstream of the discharge,
for each facility monitoring these metals in order to calculate permit limitations. Effluent
hardness and instream hardness sampling, upstream of the discharge,has been added to
the permit at a monitoring frequency of quarterly [See A.(1.)].
• The Town of Cary reported Total Cadmium and Total Lead at less than detection, with
detection levels< 1 µg/L and< 10 µg/L, respectively, in the three Effluent Pollutant
Scans and the Discharge Monitoring Results. The Town's permit discharge requirements
are 1.18 µg/L for Total Cadmium and 8.129 µg/L for Total Lead. DWR's laboratory
identifies the Practical Quantification Limits (PQLs) for Total Cadmium and Total Lead
as 0.5 µg/L and 2 µg/L,respectively. In accordance with 15A NCAC 2B .0500, all data
generated for Total Cadmium and Total Lead shall be reported to the lower reporting
level of the procedure. The Town should test for Total Cadmium and Total Lead down to
the recommended PQL and as long as the Town reports effluent Total Cadmium and
Total Lead less than the PQL or a lower reporting level of the procedure,the Town will
be considered in compliance with its permit discharge requirement(limit). No limits or
monitoring requirements for Total Cadmium or Total Lead have been added to the
permit.
• Based on Mercury TMDL evaluation, a mercury minimization plan(MMP) shall
continue in this permit.
• Some of the wording has changed in Special Condition A. (4.), Chronic Toxicity Permit
Limit,please review each paragraph carefully.
• Special Condition A. (8.) has been modified to include the specific three years in which
the Effluent Pollutant Scan shall be performed. In addition, at the end of the Special
Condition, 2nd species Toxicity Testing Requirements for municipal permit renewals per
Federal Regulations [40 CFR 122.21(j)(5)] have been added.
• Federal regulations require electronic submittal of all discharge monitoring reports
(DMRs) and program reports.The requirement to continue reporting discharge monitoring
data electronically using the NC DWR's Electronic Discharge Monitoring Report(eDMR)
internet application has been added to your NPDES permit [See Special Condition A.
(10.)].
• Parameter codes have been added to the Effluent Limitations and Monitoring Requirements
[ See A. (1.)].
• Regulatory citations have been added to the permit.
• Special Condition A.(12.) has been removed from the permit as its requirement is now
incorporated in the language of Special Condition A.(8.) Effluent Pollutant Scan.
• Special Condition A. (2.), Instream Monitoring Requirements,has been removed from the
permit as its requirement has been added to Special Condition A.(1.), Effluent Limitations
and Monitoring Requirements.
Page 2 of 3
The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. They can
be found at the following link if you would like to review them in conjunction with this draft
permit.
http://ncdenr.s3.amazonaws.com/s3 fs-
public/Water%20Quality/Surface%20Water%20Protection/NPDES/MISC/NPDES%20Standard
%20Conditions-Boilerplate-DWR-S WP-NPDES-20150410.pdf
Concurrent with this notification the Division is publishing a notice in a newspaper having
circulation in the general Wake County area, soliciting public comments on this draft permit.
Please provide any written comments you may have to the following: NCDEQ/DWR,NPDES
Permitting Branch, 1617 Mail Service Center, Raleigh,NC 27699-1617 no later than 30 days
after receipt of this draft permit.
Following the 30-day public comment period,the Division will review all pertinent comments
and take appropriate action prior to issuing a final permit. If you have questions concerning this
draft permit,please call me at(919) 707-3609 or by email at nick.coco@ncdenr.gov.
Sincerely,
Nick Coco, Engineer
NPDES Complex Permitting Unit
Hardcopy: NPDES Files
Ecopy:
DWR/Raleigh Regional Office/Water Quality/Danny Smith
US EPA Region 4
DWR/Operator Certification Program/Maureen Kinney
DWR/Aquatic Toxicology Branch/Susan Meadows
DWR/Ecosystems Branch/Mark Vander Borgh
Wake County Environmental Services/Cory Larsen
Wake County Environmental Services/Eric Green
Town of Cary/NCWRF Manager/Mr. Paul Ray
Page 3 of 3
Permit NC0048879
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
P�~\
s
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
7,
f.
In compliance with the provisions of North Carolina;General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North,Carolina Environmental
Management Commission, and the Federal'Water Pollution Control Act, as amended,
7„.Town of Cary,;
is hereby authorized to discharge wastewater from a facility located at
North-Cary Water Reclamatid.n_Facility (WRF)
! ~ 1900 OId `Reedy"Creek Road 9`1
;\ Cary/
1f s WakeµCounty
\. L
ti, e
to receiving wale-Fs-designatedas the Crabtree Creekk in`the Neuse River Basin in accordance with
the discharge limitation;=monitoring requirements;and other conditions set forth in Parts I, II, Ill,
and IV hereof.=. 'w, \
•
1
This permit shall become effective kap so„Mag.
•
This permit and the author zation'to discharge shall expire at midnight on February 28, 2023
Signed this day Month,xx, 2018.
DRAFT
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 13
Permit NC0048879
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility,whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer
effective.Therefore,the exclusive authority to operate and discharge from this facility arises
under the permit conditions, requirements,terms, and provisions included herein.
The Town of Cary
is hereby authorized to: 7\
1. Continue operation of a 12.0 MGD water reclamation facility that includes the following components:
• Mechanical screening , `
• Influent pump station 'j�`'�\`„� \
• Grit and grease removal system / `', ``� °'e
• Nutrient removal system consisting of anaerobic,selectors,oxidation ditches,anoxic zones and
/'
reaeration zones (' : N
• Dual secondary clarifiers "x �,. ``�, '
• Deep-bed sand filters ''',;\ '
• Ultraviolet disinfection t/''„ = e
• Cascade aeration �. ,,
• Belt thickeners \ `;�� ' ,,.\\
t _ \• Aerated holding tanks \� \x� ��
This facilityis located at -he North'Cary Water Reclamati n i Facilit 1900 Old Reedy Creek Road, Cary) in
Wake County. '' -,/
v ,
,ma-,gid
V , r��^ '`.'� /
' 'web '- 4
2. Operate facilities for�bulk,and reclaimed water`distribution in accordance with Non-Discharge Permit
W00017923. \` '
3. Discharge from said treatment°works at th`e-location specified on the attached map into Crabtree Creek,
a class B-NSW water.in the Neuse River Basin.
`` - . 3 -I
� \,�, j
*
Page 2 of 13
Permit NC0048879
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS(12.0 MGD)
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water
Pollution Control System [15A NCAC 08G .0302]
Beginning on the effective date of this permit 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:
PARAMETER CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS
Parameter Code Monthly Weekly Daily Measurement Sample Sample
Average. Average Maximum Freauencv Type Location
/''° /" Influent or
Flow 50050 12.0 MGDt,/,
(
Continuous Recording
Effluent
Total Monthly Flow, � \ , Influent or
,
Monitor& Report' :.,' Monthly Calculated
MG/month / ' , ,,,,, Effluent
CBOD5(20°C)2 s °;7' Twic per Influent and
"C0310 4.1 mg/L 6.0 mg/L.', N ,, Composite
(April 1-October 31) week,` ., Effluent
CBOD5(20°C)2 ' ' / ,/ Twice per ,,, Influent and
C0310 8.2 mg/L(- 12:3 mg/L / .Composite
(November 1-March 31)
\ ., =l week Effluent
Total Suspended Solids '� ` �`, ` '�� Twice per Influent and
(TSS) C0530 30.0 mg/L `450 high_ -_ \., ' y. Composite
week Effluent
Ammonia (NH3 as N) /b � . ` - Twice per
C0610 /- 0:5 nig/L 1.5 mg/L '`-. Composite Effluent
(April 1-October 31) � `;. �,� / ,� -, week
Ammonia (NH3 as N) r 1 Twice per
C0610 10 mg/L ? 3.0 mg/L',: 't. Composite Effluent
(November 1-March 31),,,.,n /a ` ``e week
Dissolved Oxygen/ �, ,,�
- _-003000 , :�, Daily Average �5;0 rng/L Daily Grab Effluent
Fecal Coliform ``,,, � `, •
Twice per
31616 200/100 mL' 400/100 mL Grab Effluent
(geometric mean) �`� '1 , ', week
Temperature (°C) Nv 00010 \1 ' Monitor,,,.)
& Report Daily Grab Effluent
pH 00400, Between 6.0 and 9.0 standard units Daily Grab Effluent
TKN, mg/L C0600\ k, Monitor and Report Weekly Composite Effluent
-
NO2-N+ NO3-N, mg/L C0600 Monitor and Report Weekly Composite Effluent
TN, mg/L3 C0600 Monitor and Report Weekly Composite Effluent
Monitor and Report(lb/mo) Monthly . Calculated Effluent
TN Load' C0600
143,246 lb/yr 5 Annually Calculated Effluent
Total Phosphorus C0665 2.0 mg/L(Quarterly Average)6 Weekly Composite Effluent
Total Silver, pg/L 01077 Monitor& Report Quarterly Composite Effluent
Page 3of13
•
Permit NC0048879
PARAMETER CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS
Parameter Code Monthly- Weekly Daily Measurement Sample Sample
Average Average . Maximum Freauencv Type Location
Total Hardness [as 00900 Monitor& Report QuarterlyComposite Effluent
CaCO3r, mg/L p p
Whole Effluent Toxicity' Monitor& Report Quarterly Composite Effluent
Effluent Pollutant Scan Monitor& Report Footnote 9 Effluent
CBOD5 C0310 Monitor& Report Footnote 10 Grab U, D1_31°
Ammonia (NH3 as N) C0610 Monitor& Report -Footnote 10 Grab U, D1_31°
Dissolved Oxygen, mg/L 00300 Monitor& Report / / Footnote 10 Grab U, D1_31°
pH 00400 Monitor& Report (/•//`'mow ''Footnote 10 Grab D21°
Temperature (°C) 00010 Monitor& Report 'Footnote 10 Grab U, D3...31°
Total Hardness [as ,f r' to
11 00900 Monitor& Report Quarterly Grab U
CaCO3] , mg/L „t ,\
Footnotes:
/>'
1. Submit discharge monitoring reports electronicallyusing NC DWR's eDMR application system. See Special Condition A.(10).
2. The monthly average CBODs and Total SuspendedSolids concentration's shall not exceed 15%of the respective influent value
(85%removal).
3. For a given wastewater sample,TN=TKN+NO3-N4NO2-N;where,TN is total nitrogen,TKN is total Kjeldahl Nitrogen,and NO3-
N and NO2-N are nitrate and nitrite nitrogen,respectively. �;--
4. TN load is the mass quantity of total nitrogen discharged=in a given time period.See-Special Condition A.(2.).
5. The annual TN load limit fbecame'effective'with the calenda=r year beginhing"on January 1,2003.Compliance with this limit
shall be determined in accordance with`Special Condition A:(3.).. ,�
6. The quarterly average for'total phosphorus shall be the average'of composite samples collected during each calendar quarter
(January-March,April-June;July,Septembe'r,October-December).
7. Effluent Total Hardness samplingshall befconducted in conjunction with effluent metals for the pretreatment program.
8. Chronic Toxicity(Ceriodaphnia)@ 90%,February;May,August,'November;see Special Condition A.(4.).
9. The permittee'shall performthree Effluent Pollutant Scans during the term of this permit.See Special Condition A.(8.).
10. U:Upstream immediately below'dam release. D1:Downstream at Ebenezer Church Road. D2:Downstream between U.S.1
and Lassiter'Mill Dam. D3:Downstream at New Hope Road. Stream samples shall be collected three times per week during
the months of'June,July,August,`and September and weekly during the remainder of the year.Instream monitoring for
CBODs,ammonia';DO,pH,and temperature is provisionally waived in light of the permittee's participation in the Lower Neuse
River Basin Association.Instream monitoring will be immediately reinstated and the Division shall be notified immediately
f ,o)
should the permittee,eo
end its participation in the Association.Locations U and D1 are not monitored under the LNBA agreement
with the Division. ) i
• 11. The Permittee shall sample hardness upstream of the facility's discharge.The sample shall be representative of the hardness in
the receiving stream.If the Permittee is'a member of the Monitoring Coalition Program,sampling for upstream hardness may
be waived as long as the Moitoring'Coalition agrees to sample hardness at the nearest upstream location, at a'minimum
frequency of quarterly,and the Permittee has obtained approval from DWR-NPDES Permitting Unit that the upstream station
being monitored by the Coalition is representative of the receiving stream for this discharge.The Permittee is responsible for
submitting upstream hardness test resu,fts with its permit renewal application package.If Coalition membership is cancelled or
the Coalition terminates upstream hardness sampling at the approved station,the Permittee will immediately notify the Division
and resume sampling for upstream hardness,upstream of its discharge.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 13
Permit NC0048879
A.(2.) CALCULATION OF TOTAL NITROGEN LOADS
[G.S. 143-215.1(b)]
(1) The Permittee shall calculate monthly and annual TN Loads as follows:
(a) Monthly TN Load (pounds/month)=TN x TMF.x 8.34
where: • TN = the average Total Nitrogen concentration (mg/L)of the composite samples
collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the month
(MG/month)
8.34 = conversion factor,from (mg/L x)MG)to pounds
(b)Annual TN Load (pounds/year)=Sum of the 12 Monthly/TN Loads for the calendar year
(2) The Permittee shall report monthly Total Nitrogen results(mg/L'arid.pounds/month) in the appropriate
discharge monitoring report for each month and shalreport each year's results(pounds/year)with the
December report for that year. \
A.(3.) ANNUAL LIMITS FOR TOTAL NITROGEN ; �:��a, f,� ��°";b
[G.S. 143-215.1(b)] r�
(1) Total Nitrogen (TN) allocations and TNt.„Load limits NPDES`dischargers in the Neuse River basin
apply on a calendar year basis. `
(2) For anygiven calendaryear,,the-Permittee be n corm liance with the annual TN Load limit in this
p
Permit if: ✓ \shall\:44
1. the Permittee'sannual TN discharge is less or equal to its TN Load limit,or
2. the Permittee is a.co--permittee member Oa compliance association.
(3) If the/Permittee isnot a co-permittee rnember.of a compliance association and the Permittee's
cumulative annual TN discharge exceeds the`effective TN Load limit in this permit at any point during
the°calendar year,the Permittee`isin violation of its TN Load limit, and each day of a continuing
violation`shall constitute separate'violation.
(4) The TN Load limit in this Permit-(if any) may be modified as the result of allowable changes in the
Permittee's TN allocation. \ "
1. Allowable changes include those resulting from purchase of TN allocation from the Wetlands
Restoration Fund, purchase, sale,trade, or lease of allocation between the Permittee and other
dischargers; regonaliiation; and other transactions approved by the Division.
2. The Permittee mayer quest a modification of the TN Load limit in this Permit to reflect
allowable changes in its TN allocation. Upon receipt of timely and proper application,the
Division will modify the permit as appropriate and in accordance with state and federal
program requirements.
3. Changes in TN limits become effective on January 1 of the year following permit modification.
The Division must receive application no later than August 31 for changes proposed for the
following calendar year.
4. Application shall be sent to:
Page 5 of 13
Permit NC0048879
NCDWR/NPDES Programs
Attn: Neuse River Basin Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617
(5) If the Permittee is a member and co-permittee of an approved compliance association, its TN
discharge during that year is governed by that association's group NPDES permit and the TN 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.
2. Association roster(s)and members'TN allocations will be updated annually and in accordance
with state and federal program requirements.
3. 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. >°
(i) Upon receipt of timely and proper notification,the Division will modify the permit as
appropriate and in accordance with,state`and federal program requirements.
(ii) Membership changes in a compliance association become,effective on January 1 of the
year following modification of the association's permit.
(6) The TN monitoring and reporting requirements in this Permit/remain in effect,until expiration of this
Permit and are not affected by the Permittee's membership n a/compliance association.
A.(4.) CHRONIC TOXICITY PERMIT LIMITA Quarter) )
[15A NCAC 026.0200 et seq.] �\ "� `�
The effluent discharge at notirne exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at'an;effluentconcentration of 90% .
The permit holder shall perform ata minimum, quarterly monitoring using test procedures
outlined in/theH"North',Carolina Ceriodaphnia'Chronic�Effluent Bioassay Procedure," Revised
December 2010, or subsequent versions or"North'Carolina Phase II Chronic Whole Effluent
Toxicity Test Procedure"(Revised-December 2010)/or subsequent versions. The tests will be
performed`during the months`of February, May,August and November. These months signify
the first month of each three-month toxici'tytesting quarter assigned to the facility. Effluent
sampling for this'testing must be-obtained during representative effluent discharge and shall be
performed at the NPDES.permitted final effluent discharge below all treatment processes.
,*
If the test procedure performed as the first test of any single quarter results in a failure or ChV
below the permit limit,then multiple-concentration testing shall be performed at a minimum, in
each of the two following months as described in "North Carolina Phase II Chronic Whole
Effluent Toxicity Test Procedure" (Revised-December 2010) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1)for the months in which tests were performed, using the
parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally,
DWR Form AT-3 (original) is to be sent to the following address:
Page 6 of 13
Permit NC0048879
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than
30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and
all concentration/response data, and be certified by laboratory supervisor and ORC or approved
designate signature. Total residual chlorine of the effluent toxicity,sample must be measured and
reported if chlorine is employed for disinfection of the waste s ream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring
is required,the permittee will complete the information"located'at the top of the aquatic toxicity
(AT)test form indicating the facility name, permit number, pipe number;,county, and the
month/year of the report with the notation of(1No
Permit NC0048879
analyte concentration is greater than zero, as determined by a specific analytical
procedure.
b. In cases where the permit limit for a parameter is set at or below the Minimum Level (ML)
for that parameter as defined above and the measurement for that parameter is less than
the ML,the permittee shall be considered to be in full compliance with the permit if the
value reported on the discharge monitoring report for that parameter is less than the ML.
A.(6.) CLARIFICATION OF MONITORING REQUIREMENTS
[15A NCAC 2B .0505 (c)(4)]
In accordance with 15A NCAC 2B .0505 (c)(4),stream sampling may be discontinued when flow conditions
or extreme weather conditions could result in injury or death of/the persons) collecting the samples. In
such cases, on each day that sampling is discontinued, written'justification for the discontinuance shall be
specified in the monitoring report for the month in which the event occurred. This provision also applies to
influent and effluent sampling. ,
A.(7.) TOTAL NITROGEN ALLOCATIONS \'�
[G.S. 143-215.1(b)] „
`v '\
a. The following table lists the Total Nitrogen`(TN)allocation(qassigned to, acquired by,or transferred
to the Permittee in accordance with the',Neuse River nutrient anagement rule (T15A NCAC 02B
.0234)and the status of each as of permit`'issuance.-For compliance purposes,this table does not
supersede any TN limit("s)Testablished elsewhere in this.4iermit or iri the NPDES permit of a
compliance association of which`•the Permitte`e is a'CoPermittee Member.
�,° 'a r
C ;,-,, \ \ 7''
ALLOCATION AMOUNT 1
ALLOCATION SOURCE DATE STATUS
TYPE Estuary(Ib/yr) Discharge
(Ib/yr)
Assignei,by Rule, "= , 7
„ 12/7/9
Base, 67,579 135,158 Active
�,• (T15A NCAC 026.02344, 4/1/03
Town of Morrisville
Supplemental NC0050041'S 2,022 4,044 Active
N, Town of Mornsville,
Supplemental NC0050938
2,022 4,044 Active
�r
' TOTAL 71,623 143,246 Active
Footnote:
1. Transport Factor=50%
b. Any addition, deletion,or modification of the listed allocation(s) (other than to correct typographical
errors) or any change to Active 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.
Page 8of13
Permit NC0048879
A.(8.) EFFLUENT POLLUTANT SCAN
[G.S. 143-215.1(b)]
The Permittee shall perform a total of three(3) Effluent Pollutant Scans for all parameters listed below.
One scan must be performed in each of the following years: 2020, 2021, and 2022. Analytical methods
shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether
parameters are present in concentrations greater than applicable standards and criteria. Samples
should be collected with one quarterly toxicity test each year, and must represent seasonal variation
[i.e., do not sample in the same quarter every year]. Unless otherwise indicated, metals shall be
analyzed as "total recoverable."
Ammonia (as N) Trans-1,2-dichloroethylene Bis(2-chloroethyl) ether
Chlorine (total residual,TRC) 1,1-dichloroethylene,/ . �' Bis(2-chloroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane Bis(2-ethylhexyl) phthalate
Nitrate/Nitrite 1,3-dichloropropyle., ^\. 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene..\.:_-g' Butyl benzyl phthalate
'i ti 2-chloronahthalene
Oil and grease Methyl bromid.„e ,, p
Phosphorus Methyl chloride 4-chlorophenyl phenyl ether
Total dissolved solids Methylchloride Chr
eneysene
a,
Hardness 1,1,2,2-tetrachloroethhane2, Di-n-butyl phthalate
Antimony 7. Tetrachloroethylene' // Di-n-octyl-phthalate
Arsenic ;`,; ,
Toluene Dibenzo(a,h)anthracene
Beryllium �` 11,1=trichloroethane,,\-.. 1,2-dichlorobenzene
Cadmium1,1,2-trichloroethane ,°%;_� 1,3-dichlorobenzene
Chromium Tnchloroethyne , s 1,4-dichlorobenzene
\ �
Copper :°- uVinyl chloride . ` -- 3,3-dichlorobenzidine e
` ; ic /
Lead \t V Acid-extractable compounds:
Diethyl phthalate
Mercury(EPA Method 11631E) 1:; 1 P-chloro-m-cresol Dimethyl phthalate
Nickel ,.. // --2-chlorophen
° """ ol 2,4-dinitrotoluene •
Selenium `2,,4-dichlorophenol 2,6-dinitrotoluene
Silver/ _ '�' .'..,,%' 2,4-dimethylphenol 1,2-diphenylhydrazine
Thall um �� ` 4,6-dinitro o-cresol Fluoranthene
Zinc', ' \4{ \\,2,4-dinitrophenol Fluorene
Cyanide\. v\ `�, , 2-nitrophenol Hexachlorobenzene
Total phenolic compounds ', 4-nitrophenol Hexachlorobutadiene
Volatile organic compounds: I I Pentachlorophenol Hexachlorocyclo-pentadiene
Acrolein ,'.��; f: Phenol Hexachloroethane
Acrylonitrile \ •. ,,/ 2,4,6-trichlorophenol Indeno(1,2,3-cd)pyrene
%Benzene Base-neutral compounds: Isophorone
. Bromoform Acenaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chlorobenzene Anthracene_ N-nitrosodi-n-propylamine
Chlorodibromomethane Benzidine N-nitrosodimethylamine
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine
2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene
1,1-dichloroethane Benzo(k)fluoranthene
1,2-dichloroethane Bis(2-chloroethoxy) methane
Page 9 of 13
Permit NC0048879
Reporting. Test results shall be reported on DWR Form-A MR-PPA1 (or in a form approved by the
Director) by December 31St of each designated sampling year. The report shall be submitted to the
following address: NC DEQ/ DWR/Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.
Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that
Municipal facilities that are subject to the Effluent Pollutant Scan requirements listed above are
also subject to additional toxicity testing requirements specified in Federal Regulation 40 CFR
122.21(j)(5). The US EPA requires four(4)toxicity tests for a test organism other than the test
species currently required in this permit. The multiple species tests should be conducted either
quarterly for a 12-month period prior to submittal of the permit renewal application, or four tests
performed at least annually in the four and one half year period prior to the application. These
tests shall be performed for acute or chronic toxicity, whichever is,specified in this permit. The
multiple species toxicity test results shall be filed with'th`e Aquaticjoxicology Branch at the
following address: °, \
North Carolina Division of Water Resources\
Permit NC0048879
A.(10.) ELECTRONIC REPORTING OF MONITORING REPORTS •
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
program reports.The final NPDES Electronic Reporting Rule was adopted and became effective on
December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of
this permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting Section D. (6.)
• Records Retention "
• Section E. (5.) Monitoring Reports ,\
1. Reporting Requirements [Supersedes Section'D.°(2.) and Section E.(5.) (a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) iinternet application. , �
\, "
`�, , \
Monitoring results obtained during tl)e,,previous month(s)'shall be summarized for each month
and submitted electronically using4eDMR."-The eDMR`system allows permitted facilities to
enter monitoring data and submit DMRs electronically using the internet. Until such time that
the state's eDMR application is compliant with EP,A''s"Cross-Media Electronic Reporting
Regulation (CROMERR), permittees will be required to,submit all_discharge monitoring data to
the state electronically using'eDMR and wll'be required to"complete the eDMR submission by
printing, signing, and submitting one signed'original and a copy of the computer printed eDMR
to the following address:V �
NC DEQ"/"Division-of WaterlResources/Water,Quality Permitting Section
ATTENTION: Central'Files,„
1617 MailyService Center , \
Raleigh, North Carolina 27699=1617 V
ti �, 5E'
If a permittee is\unable to us
�°tle eDMR system due to a demonstrated hardship or due to the
facility being physicallywlocatedin an area where less than 10 percent of the households have
broadband access,thens"a temporary waiver from the NPDES electronic reporting requirements
may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1,
1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be
submitted to the mailing address above. See "How to Request a Waiver from Electronic
Reporting" section below.
Regardless of the submission method,the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility, on the last day of the
month following the commencement of discharge.
Starting on December 21, 2020,the permittee must electronically report the following
compliance monitoring data and reports, when applicable:
Page 11of13
Permit NC0048879
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request
a Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the
time of each electronic submission. The permittee should use the EPA's website resources to
identify the initial recipient for the electronic submission.
Initial recipient of electronic NPDES information"from NPDES-regulated facilities means the
entity (EPA or the state authorized by EPA to'impl'ement the NPDES program) that is the
designated entity for receiving electronic NPDES data [see 40 CFR 127„2(b)].
4
EPA plans to establish a website that will also Zink-to the,appropriate electronic reporting tool
for each type of electronic submission and for each-state. Instructions on how to access and
use the appropriate electronic reporting tool will be available as well. Information on EPA's
NPDES Electronic Reporting Rule is foundat:
https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-
discharge-elimination-system-npdes-electronic-reporting-rule.`�.;
Electronic submissions must start-by the dates listed in theReporting Requirements” section
above.
3. How,to Request a Waiver from Electronic,Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain
an electronic reporting waiver, a permittee must first submit an electronic reporting waiver
request to the"Division. Requests for temporary electronic reporting waivers must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the
date the facility would be required under this permit to begin submitting monitoring data and
reports. The duration of a"temporary waiver shall not exceed 5 years and shall thereupon
expire. At such time, monitoring data and reports shall be submitted electronically to the
Division unless the permittee re-applies for and is granted a new temporary electronic
reporting waiver by the Division. Approved electronic reporting waivers are not transferrable.
Only permittees with an approved reporting waiver request may submit monitoring data and
reports on paper to the Division for the period that the approved reporting waiver request is
effective.
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Page 12of13
Permit NC0048879
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.)
(d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in
Part II,Section B. (11.)(b). A person, and not a position, must be delegated signatory authority
for eDMR reporting purposes.
For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system.7For;more information on North
Carolina's eDMR system, registering for eDMR and obtaining-an eDMR user account, please
visit the following web page: //f
P
http://deq.nc.gov/about/divisions/water-rees�ources/edmr
>r
Certification. Any person submitting an electronic DMR using the state's.eDMR system shall
make the following certification [40 CFR 122.22].\NO OTHER,STATEMENTSQF CERTIFICATION
WILL BE ACCEPTED: ' '`'. ,r�
•
"I certify, under penalty of law, that this document andall attachments were prepared under
my direction or supervision in accordance with asystem designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons who manage.the system;pr those persbns directly responsible for gathering
the information, the information`submittedisfto the b se t'of my knowledge and belief, true,
accurate, and complete:.)am aware that there are significant penalties for submitting false
information, including the'possibilityof fines and'imprisonment for knowing violations."
r
Fr %f�4 `. ~` \
5. Record's Retention,[Supplements Secti n D. (6.)1'
The permittee shall retain records of aIi,Discharge Monitoring Reports, including eDMR submissions. These
records or'copies shall be maintained fora period of at least 3 years from the date of the report. This
period may be,extended by request Of the Director at any time [40 CFR 122.41].
\`
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Page 13 of 13
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NC0048879 - North Cary WRF Facility 4-
Latitude: 35°50'16" Sub-Basin: 03-04-02 I Location
Longitude: 78°46'50" 8-Digit HUC: 03020201
Quad#: Cary,N.C.
Stream Class: B-NSW
Receiving Stream: Crabtree Creek Town of Cary
Permitted Flow: 12.OMGD North Wake County