NC0024228_Application (ATC)_20130729

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NCDENR
North Carolina Department of Environment and Natural
Division of Water Quality
Pat McCrory Thomas A. Reeder
Governor Acting Director
July 29, 2013
Mr. Terry Houk, Assistant Director of Public Services
City of High Point
211 S. Hamilton Street
High Point, North Carolina 27261
Dear Mr. Houk:
NR
JUL 3 0 2013
Resources
vvuistun-Salem
Raninnal r)f m
Secretary
SUBJECT: Acknowledgement of Request for an
Authorization to Construct
City of High Point
Westside Wastewater Treatment Plant
Improvements, Phase 3
A to C No. 024228A03
The Infrastructure Finance Section received your request for an Authorization to
Construct and the supporting documentation on July 26, 2013. We will notify you and your
engineer upon completion of our review. Your project has been assigned to Ken Pohlig, P.E. He
can be reached at [phone].
If you have any questions concerning this matter, please contact me at [phone].
Sincerely, 0 k� 4�'
Seth Robertson, P.E., Supervisor
Design Management Unit
Infrastructure Finance Section
kp/dr
cc: C. Todd Johnson, P.E., Hazen and Sawyer, 4011 WestChase Blvd., Suite 500, Raleigh, NC 27607
DWQ Winston-Salem Regional Office
WQ Central Files
Ken Pohlig, P.E.
Infrastructure Finance Section
1633 Mail Service Center, Raleigh, North Carolina 27699-1633
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone]
Internet: ifs.nc. ov
No thCarolina
Aahirally
An Equal Opportunity \ Affirmative Action Employer

LW
NCDENR
North Carolina Department of Environment and Natural
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder
Governor Director
October 9, 2013
Mr. Terry Houk, Assistant Director of Public Services
City of High Point
211 S. Hamilton Street
High Point, North Carolina 27261
Dear Mr. Houk:
RECEIVED
N.C.Dept. of ENR
OCT 1 1 2013
Resou rcemston-Salem
egional office l
SUBJECT: Authorization to Construct
A to C No. 024228A03
John E. Skvarla, III
Secretary
City of High Point
Westside Wastewater Treatment Plant
Improvements, Phase 3
A letter of request for an Authorization to Construct was received July 26, 2013, by the
Division of Water Resources (Division), and final plans and specifications for the subject project
have been reviewed and found to be satisfactory. Authorization is hereby granted for the
construction of modifications to the existing 6.2 MGD City of High Point Westside Wastewater
Treatment Facility, with discharge of treated wastewater into Rich Creek in the Yadkin -Pee Dee
River Basin.
This authorization results in an increase in design capacity to 10 MGD, but limits the
permitted capacity to 8.2 MGD, and is awarded for the construction of the following specific
modifications:
New Biological Nutrient Removal (BNR) system consisting of four parallel trains with
total volumes of 0.50 MG anaerobic zone, 0.91 MG 0 stage anoxic zone, 4.95 MG
aerobic zone, 1.48 MG 2nd stage anoxic zone, 0.29 MG re -aeration zone, including fine
bubble diffusers and 40 vertical mixers; new blower/NRCY Building including two (2)
6,074 ICFM blowers, two (2) 4,050 ICFM blowers, and four (4) 6,944 gpm NRCY
pumps; a new final clarifier distribution box; new 130-foot diameter, 15-foot side -water
depth final clarifier; two (2) 3,550 gpm RAurn s; a new process drain pump station,
including one (1) 1,100 gpm pump; a new clarifier drain pump station including one (1)
800 gpm pump; two (2) 150 gpm non -potable water pumps; associated electrical and
control/SCADA work, sitework, and yard piping, in conformity with the project plans,
1617 Mail Service Center, Raleigh, North Carolina 27699.1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone]
Internet: www.ncwaterauality.org
One
NorthCarolina
Natur,711Y
An Equal opportunity \ Affirmative Action Employer

Mr. Terry Houk, Assistant Director of Public Services
October 9, 2013
Page 2
specifications, and other supporting data subsequently filed and approved by the
Department of Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0024228 issued June 20, 2013, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0024228.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be notified
at least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Attn: Ron Berry, DENR/DWR,
NPDES Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.

Mr. Terry Houk, Assistant Director of Public Services
October 9, 2013
Page 3
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely,
Thomas A. Reed r
D'I
kp: sr
cc: C. Todd Johnson, P.E., Hazen and Sawyer, 4011 WestChase Blvd., Suite 500, Raleigh, NC 27607
Davidson County Health Department
DWR Winston-Salem Regional Office, Water Quality Section
DWR, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File

City of High Point
Westside Wastewater Treatment Plant
Improvements, Phase 3
A To C No. 024228A03
Issued October 9, 2013
Engineer's Certification
Partial Certification Final Certification
I, , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the construction of the modifications and improvements to the Westside WWTP, located on 1044
West Burton Road in Davidson County for the City of High Point, hereby state that, to the best
of my abilities, due care and diligence was used in the observation of the following construction:
New Biological Nutrient Removal (BNR) system consisting of four parallel trains with
total volumes of 0.50 MG anaerobic zone, 0.91 MG lst stage anoxic zone, 4.95 MG
aerobic zone, 1.48 MG 2' stage anoxic zone, 0.29 MG re -aeration zone, including fine
bubble diffusers and 40 vertical mixers; new blower/NRCY Building including two (2)
6,074 ICFM blowers, two (2) 4,050 ICFM blowers, and four (4) 6,944 gpm NRCY
pumps; a new final clarifier distribution box; new 130-foot diameter, 15-foot side -water
depth final clarifier; two (2) 3,550 gpm RAS pumps; a new process drain pump station,
including one (1) 1,100 gpm pump; a new clarifier drain pump station including one (1)
800 gpm pump; two (2) 150 gpm non -potable water pumps; associated electrical and
control/SCADA work, sitework, and yard piping, in conformity with the project plans,
specifications, and other supporting data subsequently filed and approved by the
Department of Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
We understand that the new limits associated with the modifications to expand to 8.2 MGD now
apply.
[NOTE: According the NPDES Permit NC002428 issued June 30, 2013, the Authorization to
Operate at 10 MGD will not be issued until the Division has received positive demonstration of
sufficient assimilative capacity in the receiving stream.]
Signature
Date
Registration N
Mail this Certification to: Attn: Ron Berry
DENR/DWR, NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
L

NCDENR
North Carolina Department of Environment and
Division of Water Quality
Pat McCrory Thomas A. Reeder
Governor Acting Director
June 20, 2013
Mr. W. Chris Thompson, P.E.
Director of Public Services
The City of High Point
P.O. Box 230
High Point, NC 27261
Natural Resources
John E. Skvarla, III
Secretary
Ret?e"D
N.C. Dept. Of ENR
JUL 12 2013
Winston-Salem
Regional Office
Subject: Issuance of NPDES Permit Modification
NCO024228
High Point Westside WWTP
Davidson County
Facility Class IV
Dear Mr. Thompson:
Division personnel have reviewed and approved your application for your facility's proposed expansion,
which is conditioned upon successful stream restoration activities to improve assimilative capacity.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit 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).
Thank you for your comment letter on the draft NPDES permit. Since the laboratory did indeed provide
the appropriate supporting quality control for the sample taken on February 3, 2010 a mercury limit will
remain in the permit. In accordance with anti -degradation rules and the Implementation of the statewide
Mercury TMDL, US EPA has identified that WWTP's with existing mercury limits based on 12 ng/L,
showing potential to exceed the Technology Based Effluent Limitation (TBEL) of 47 ng/L, are required
to continue complying with their existing limit as an annual average limitation. EPA contested that giving
a TBEL of 47 ng/L could result in violations of the state water quality standard. Mercury limitations in
Sections A.(1), A.(2.), and A.(3.) were corrected to Water Quality Based limitations to be complied with
on an annual average.
Additional changes made to the draft permit sent to you on February 13, 2013 include:
• The address on the, Cover page and Supplement to cover was corrected to 1044 West Burton
Road.
The stream classification listed on the map was corrected to C.
The Monitoring Frequency Reduction guidance has been clarified to primarily apply to existing
permitted flows and sampling data. Facilities with flow expansions associated with treatment
modifications shall resume sampling in accordance with 15A NCAC 2B .0500 until sufficient
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.ncwaterquality.orq
An Equal Opportunity 1 Affirmative Action Employer
Nne
orthCarolina
Natmallty

Page 2 of 3
data is collected to demonstrate consistent, long-term treatment performance under modified
conditions. Therefore, sampling for TSS, NH3-N, and Fecal Coliform has been changed to daily
in Section A.(2). Three years of data will be needed to demonstrate consistent, long term
treatment performance under the modified conditions to qualify for a reduction in sampling.
Facilities requesting an expansion with no changes to treatment will be granted previous
monitoring reductions. Therefore, any reductions granted to Westside WWTP under 8.2 MGD
will be continued in the 10 MGD effluent requirements if no significant treatment modifications
are made prior to issuance of the 10 MGD Authorization To Operate. Section A.(3.) was revised
to reflect sampling requirements in Section A.(2.).
• The Mercury Minimization Plan in Section A.(7.) was revised to allow for implementation of the
MMP during the next permit cycle since this modified permit will expire on April 30, 2014.
Results shall be summarized and submitted with the renewal application submitted for the permit
expiring on April 30, 2019.The MMP shall be developed as originally stated (within 180 days of
the effective date of this permit).
As identified previously, this permit modification contains the following changes from your current
permit:
• The Supplement to Cover page was revised to include a revised treatment components list and to
address the phased expansions from 6.2 to 8.2 MGD and 8.2 to 10 MGD.
• Phased expansion Effluent Limitations and Monitoring Requirements for 8.2 MGD and 10 MGD
were added under Sections A.(2) and A.(3). Special Conditions under footnote #8 were added to
Section A.(3) outlining the actions cited or necessary as part of the SEPA Findings of No
Significant Impact and Environmental Assessment dated Nov. 19, 2010.
• In accordance with the NPDES Monitoring Frequency Reduction Review Guidance, monitoring
for TSS, NH3-N, and fecal coliform were reduced from daily to twice per week under the existing
permitted conditions in Section A.(l.).
• As part of the Statewide TMDL for mercury, a Mercury Minimization Plan must be developed for
your facility. See Special Condition A. (7) Mercury Minimization Plan (MMP). The requirements
are posted on the NPDES website: http://portal.ncdenr.org/web/wq/ps/npdes. You have until
January 28, 2014 (180 days from the effective date of the permit) to develop the plan.
• Copper, silver, and zinc all showed reasonable potential to violate water quality standards. Since
these parameters have action level standards, quarterly monitoring in conjunction with the Whole
Effluent Toxicity test will be required. See Sections A.(1), A.(2) and A.(3).
• Nickel and cyanide effluent samples did not show reasonable potential to violate water quality
standards and were removed from the permit but will continue to be monitored as part of the
WWTP's Pretreatment LTMP.
• Aluminum effluent samples did not show reasonable potential to violate the Human Health
standard based on fish consumption so aluminum monitoring was removed from the permit.
Monitoring for aluminum will continue as part of the WWTP's Pretreatment LTMP.
• Footnote Number 3 was modified under Section A (l.) to include the following statement: TRC
limit and monitoring requirement only apply if chlorine is used for disinfection. The Permittee
shall report all effluent TRC values reported by a NC -certified laboratory [including field -
certified]. Effluent values below 50 _µg/L will be treated as zero for compliance purposes.
• As stated in the Speculative Effluent Limits letter dated 11/10/2009, in the interim prior to the
finalization of the nutrient TMDL for High Rock Lake, current permit TP mass loads were
maintained in the phased expansions. TN limitations were added in the phased expansion Effluent
Limitations pages which freeze the actual TN mass load based on the historical loadings from the
Westside WWTP from January 2007 through August 2009. See Sections A.(2) and A.(3).
• The wording in Section A. (8.)Chronic Toxicity Permit Limit has been changed and the following
paragraph added: If the Permittee monitors any pollutant more frequently than required by this
permit, the results of such monitoring shall be included in the calculation and reporting of the

Page 3 of 3
data submitted on the Discharge Monitoring Report and all AT Forms submitted. This wording
has also been added to the New 2011 Standard Conditions: Part II, Section E. 5.b.
• Effluent pollutant scans have been reduced from annually to three times during the term of the
permit cycle. See Section A. (9.).
Please note that the receiving stream, Rich Fork Creek, is listed as an impaired waterbody on the 2012
North Carolina 303(d) Impaired Waters List. Impairment is for ecological/biological integrity benthos.
Addressing impaired waters is a high priority with the Division and instream data will continue to be
evaluated. If there is noncompliance with permitted effluent limits and stream impairment can be
attributed to your facility, then mitigative measures may be required.
If any parts, measurement frequencies or sampling requirements contained in this permit 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.
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 Quality or permits
required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or
Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Julie Grzyb by email
[e-mail]) or phone at [phone].
Sin erely,
omas A. Reeder
Enclosure: NPDES Permit NC0024228
cc: NPDES Unit
Central Files
Winston-Salem Regional Office / Surface Water Protection Section
e-copy:
EPA Region IV, Ben Gosh
PERCS Unit
ESS/ Aquatic Toxicity Unit, Susan Meadows
ESS/ Ecosystems Unit, Carrie Ruhlman
Wildlife Resources Commission, Habitat Conservation Program, Shari Bryant,
US Army Corps of Engineers, [e-mail]

Permit No. NCO024228
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
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 Water Quality
Commission, and the Federal Water Pollution Control Act, as amended,
City of High Point
is hereby authorized to discharge wastewater from a facility located at
High Point/ Westside Wastewater Treatment Plant
1044 West Burton Road
Davidson County
to receiving waters designated as Rich Fork Creek in the Yadkin -Pee Dee River Basin
in accordance with the discharge limitations, monitoring requirements, and other conditions set
forth in Parts I, II, III, and IV hereof.
This permit modification shall become effective August 1, 2013.
This permit and the authorization to discharge shall expire at midnight on April 30, 2014.
Signed this day June 20, 2013.
Thomas A. Reeder, Acting Director
rDivision of Water Quality
By Authority of the Environmental Management Commission

Permit NCO024228
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit 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 City of High Point is hereby authorized to:
1. Continue to operate an existing 6.2 MGD wastewater treatment facility that
includes the following components:
➢ VFD Solids Handling Vertical Turbines influent pumps
➢ Mechanical Bar Screens (course and fine screen)
➢ Stirred Vortex Grit chambers
➢ Dual primary clarifiers
➢ Roughing filter (bio-filter)
➢ Three aeration basins
➢ Dual secondary clarifiers
➢ Tertiary filters _
➢ Alum phosphorus removal facilities
➢ Rotary Drum Thickener -
➢ Dual train UV disinfection
➢ Effluent Pumps
This facility is located at the High Point Westside WWTP, 1044 West Burton Road,
Thomasville, in Davidson County.
2. After receiving the proper Authorization to Construct a 10 MGD WWTP and the
Authorization to Operate an 8.2 MGD WWTP from the Division of Water Quality,
construct the facilities'and operate the Westside WWTP at a permitted now of 8.2
MGD, and,
3. After receiving the proper Authorization to Operate a 10 MGD WWTP from the
Division of Water Quality, as well as Division approval based on positive
demonstration of sufficient assimilative capacity in the receiving stream, operate
facilities giving Westside WWTP a treatment capacity of 10 MGD.
4. Discharge wastewater from said treatment works at the location specified on the
attached map into Rich Fork Creek, currently classified C waters in the Yadkin -Pee
Dee River Basin.
Page 12

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City of High Point - NCO024228 Facility
Location
USGS Quad Name: D18NE Lat.: 35°56'14"
Receiving Stream: Rich Fork Creek Long.: 80°06'42"
Stream Class: C Basin: Yadkin
Subbasin: 03-07-07 HUC: 03040103 /Y Davidson County
A,O�

Permit NCO024228
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration
or expansion, the Permittee is authorized to discharge from outfall 001. Such discharges
shall be limited and monitored by the Permittee as specified below:
PARAMETER
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location'!
ow
6.2 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 20°C2
(April 1 - October 31
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent & Effluent
BOD, 5 day, 20°C2
November 1 - March 31
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent & Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
2/week
Composite
Influent & Effluent
NH3 as N
April 1 - October 31)
2.0 mg/L
6.0 mg/L
2/week
Composite
Effluent
NH3 as N
November 1- March 31
4.0 mg/L
12.0 mg/L
2/week
Composite
Effluent
H
> 6.0 and < 9.0 standard units
Daily
Grab
Effluent
Dissolved Oxygen
Dail average > 6.0 m /L
Daily
Grab
Effluent
Fecal Coliform
(geometric mean
200/100 mL
400/100 mL
2/week
Grab
Effluent
al Residual Chlorine3
17 lug/L
Daily
Grab
Effluent
Temperature °C
Daily
Grab
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)
Weekly
Composite
Effluent
Total Phosphorus4
(April 1— October 31)
5,533 pounds
Seasonal total
Weekly
Composite
Effluent
Total Phosphorus4
(November 1— March 31)
7,808 pounds
Seasonal total
Weekly
Composite
Effluent
Chronic Toxicity5
Quarterly
Composite
Effluent
Total Copper
Quarterly
Composite
Effluent
Total Mercury6
Annual average limit of 14 ng/L
Quarterly
Grab
Effluent
Total Silver
Quarterly
Composite
Effluent
Total Zinc
Quarterly
site
Effluent
Effluent Pollutant Scan
Monitor & Report
7
3 scans over five
year period
te 7
F�m
Effluent
Footnotes:
1 See Section A. (4.) for Instream Monitoring Requirements.
a The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed
15% of the respective influent value (85% removal).
3 TRC limit and monitoring requirement only apply if chlorine is used for disinfection. The Permittee
shall report all effluent TRC values reported by a NC -certified laboratory [including field -certified].
Effluent values below 50 µg/L will be treated as zero for compliance purposes.
4 The facility shall meet a Total Phosphorus mass limit of 5,533 pounds during the summer (April -
October) and 7,808 pounds during the winter (November -March). See A. (5.) for reporting details.
5 Chronic Toxicity (Ceriodaphnia) P/F at 90% January, April, July, and October [see A. (8.)].
TOXICITY MONITORING SHALL COINCIDE WITH METALS MONITORING.
6 Effluent samples must be analyzed by EPA Method 1631E. A Mercury Minimization Plan is
required, see Special Condition A. (7).
7 See A. (9.) of this permit.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 14

Permit NC0024228
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning upon receipt of an Authorization to Operate or the Engineer's Certification upon
completion of the 8.2 MGD expansion and lasting until issuance of an Authorization to Operate
at 10 MGD or permit expiration, the Permittee is authorized to discharge from outfall 001. Such
discharges shall be limited and monitored by the Permittee asspecified below:
PARAMETER
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Locations
Flow
8.2 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 20°C2
(April 1 - October 31
4.9 mg/L
7.4 mg/L
Daily
Composite
Influent & Effluent
BOD, 5 day, 20°C2
November 1 - March 31
9.8 mg/L
14.8 mg/L
Daily
Composite
Influent & Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent & Effluent
NH3 as N
(April 1 - October 31
1.0 mg/L
3.0 mg/L
Daily
Composite
Effluent
NH3 as N
November 1 - March 31
2.0 mg/L
6.0 mg/L
Daily
Composite
Effluent
H
> 6.0 and < 9.0 standard units
Daily
Grab
Effluent
Dissolved Oxygen
Dail average > 7.0 m /L
Daily
Grab
Effluent
Fecal Coliform
(geometric mean
200/100 mL
400/100 mL
Daily
Grab
Effluent
oiMtal Residual Chlorine3
17 pg/L
Daily
Grab
Effluent
Temperature °C
Daily
Grab
Effluent
Total Nitrogen 4
(NO2 + NO3 + TKN)
159,870 pounds/year
(annual load)
Weekly
Composite
Effluent
Total Phosphorus4
13,341 pounds / year
(annual load)
Weekly
Composite
Effluent
Chronic Toxicity5
Quarterly
Composite
Effluent
Total Copper
Quarterly
Composite
Effluent
Total Mercury6
Annual average limit of 13 ng/L
Quarterly
Grab
Effluent
Total Silver
Quarterly
Composite
Effluent
Total Zinc
Quarterly
Composite
Effluent
Effluent Pollutant Scan
Monitor & Report
3 scans over five
year period
Footnote 7
Effluent
Footnotes:
1 See Section A. (4.) for Instream Monitoring Requirements.
2 The monthly average effluent BODS and Total Suspended Solids concentrations shall not exceed
15% of the respective influent value (85% removal).
3 TRC limit and monitoring requirement only apply if chlorine is used for disinfection. The Permittee
shall report all effluent TRC values reported by a NC -certified laboratory [including field -certified].
Effluent values below 50 µg/L will be treated as zero for compliance purposes.
4 See A. (6.) CALCULATION AND REPORTING OF NUTRIENT LOADS for details.
s Chronic Toxicity (Ceriodaphnia) P/F at 90% January, April, July, and October [see A. (8.)].
TOXICITY MONITORING SHALL COINCIDE WITH METALS MONITORING.
6 Effluent samples must be analyzed by EPA Method 1631E. A Mercury Minimization Plan is
required, see Special Condition A. (7).
7 See A. (9.) of this permit.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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Permit NCO024228
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
After satisfying the Special Conditions in footnote 8 and begining upon receipt of an Authorization
to Operate at 10 MGD and lasting until permit expiration, the Permittee is authorized to
discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
PARAMETER
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Locations
Flow
10 MGD
Continuous
Recording
Influent or Effluent
BOD, 5 day, 20oC2
1- October 31)
5 mg/L
7.5 mg/L
Daily
Composite
Influent & Effluent
-(April
BOD, 5 day, 20°C2
November 1 - March 31
10 mg/L
15.0 mg/L
Daily
Composite
Influent & Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent & Effluent
NH3 as N
1 - October 31)
1.0 mg/L
3.0 mg/L
Daily
Composite
Effluent
-(April
NH3 as N
November 1 - March 31
1.8 mg/L
5.4 mg/L
Daily
Composite
Effluent
H
> 6.0 and < 9.0 standard units .
Daily
Grab
Effluent
Dissolved Oxygen
Dail average > 7.0 m /L
Daily
Grab
Effluent
Fecal Coliform
eometric mean
200/100 mL
400/100 mL
Daily
Grab
Effluent
al Residual Chlorine3
17 Ng/L
Daily
Grab
Effluent
Temperature °C
Daily
Grab
Effluent
Total Nitrogen4
(NO2 + NO3 + TKN)
159,870 pounds/year
(annual load)
Weekly
Composite
Effluent
Total Phosphorus4
13,341 pounds / year
(annual load)
Weekly
Composite
Effluent
Chronic Toxicit 5
Quarterly
Composite
Effluent
Total Copper
Quarterly
Composite
Effluent
Total Mercur 6
Annual average limit of 13 ng/L
Quarterly
Grab
Effluent
Total Silver
Quarterly
Composite
Effluent
Total Zinc
Quarterly
Composite
Effluent
Effluent Pollutant Scan
Monitor & Report
3 scans over five
year period
Footnote 7
Effluent
Footnotes:
1 See Section A. (4.) for Instream Monitoring Requirements.
2 The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed
15% of the respective influent value (85% removal).
3 TRC limit and monitoring requirement only apply if chlorine is used for disinfection. The Permittee
shall report: all effluent TRC values reported by a NC -certified laboratory [including field -certified].
Effluent values below 50 µg/ L will be treated as zero for compliance purposes.
4 See A. (6.) CALCULATION AND REPORTING OF NUTRIENT LOADS for details.
5 Chronic Toxicity (Ceriodaphnia) P/F at 90% January, April, July, and October [see A. (8.)].
TOXICITY MONITORING SHALL COINCIDE WITH METALS MONITORING.
6 Effluent samples must be analyzed by EPA Method 1631E. A Mercury Minimization Plan is
required, see Special Condition A. (7).
7 See A. (9.) of this permit.
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Permit NCO024228
s SPECIAL CONDITIONS IN ACCORDANCE WITH THE SEPA FINDING OF NO SIGNIFICANT IMPACT AND
ENVIRONMENTAL ASSESSMENT FOR THE CITY OF HIGH POINT - WESTSIDE WASTEWATER TREATMENT
PLANT EXPANSION BEYOND 8.2 MGD:
a. Perform the stream restoration project on Rich Fork Creek after acquiring the necessary
permits.
b. Submit a summer in -stream monitoring plan, on the proposed intensive monitoring in Rich
Fork Creek, to be performed following stream restoration. Submit 2 copies of the plan to
DWQ/ NPDES and one copy to the DWQ/MTU/Unit Supervisor for approval at least 3 months
prior to planned implementation.
c. The City of High Point shall implement the DWQ approved in -stream monitoring plan.
d. Following the intensive monitoring survey, after the stream restoration project
is completed, the receiving water quality model for Rich Fork Creek will be
recalibrated for the approximately 12 mile segment between the High Point
Westside outfall and the confluence of Abbotts Creek, to reflect the revised
physical conditions of the stream due to the restoration project. The
recalibrated model will be rerun with existing flow, 8.2 MGD, and 10 MGD to
analyze the impact of the discharge. Model results will be compared with
previous predictions and observed profiles to determine the level of impact on
dissolved oxygen concentrations. The results of the modeling analyses and the
recalibrated models at 8.2 MGD and 10 MGD shall be submitted to DWQ for
review. Submit 2 copies of the modeling report and all associated modeling files
to DWQ/ NPDES and one copy to the DWQ/MTU/Unit Supervisor for review.
An electronic copy of the model should be included with the copy sent to
DWQ/MTU for a proper review. The City of High Point will be allowed to
proceed with an expansion or an Authorization to Operate request at 10 MGD
upon DWQ approval, based upon validation of model predictions that in -stream
dissolved oxygen water quality standards will be maintained in the restored
segment of the receiving stream.
e. If the recalibrated models or in -stream DO data in the restored segment of Rich
Fork Creek do not show sufficient assimilative capacity, the City of High Point
shall submit a plan outlining efforts to maximize DO in the WWTP's effluent to
ensure in -stream DO water quality standards are not violated due to the
discharge from the Westside WWTP. Three copies of the DO optimization plan
shall be submitted to DWQ/ NPDES. A compliance schedule to address the DO
deficiency may be added to this permit and an Authorization to Operate at a
capacity of 10 MGD will not be allowed until the City demonstrates that the
receiving stream has sufficient assimulative capacity to support an expansion.
All submitals to DWQ/MTU and DWQ/NPDES should be sent to:
1617 Mail Service Center
Raleigh, NC 27699-1617
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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Permit NCO024228
A. (4.) INSTREAM MONITORING REQUIREMENTS
Parameter
Measurement Frequency
Sample Type
Sample Location'
Fecal Coliform
June -Sept.
3/week
Grab
Upstream &
Downstream 1 & 2
October -May
1/week
Dissolved Oxygen
June -Sept.
3/week
Grab
Upstream &
Downstream 1 & 2
October -May
1/week
Temperature
June -Sept.
3/week
Grab
Upstream &
Downstream 1 & 2
October -May
1/week
Conductivity
June -Sept.
3/week
Grab
Upstream &
Downstream 1 & 2
October -May
1 /week
Total Phosphorus
June -Sept. 1/month
Grab
Upstream &
Downstream 1 & 2
Total Nitrogen
(NO2 + NO3 + TKN)
June -Sept. 1/month
Grab
Upstream &
Downstream 1 & 2
Footnotes:
1. Upstream = Rich Fork Creek at NCSR1757 - Chestnut Street above the outfall.
2. Downstream (2 locations): (1) at NCSR 1787, (2) at NCSR 2123 upstream of Abbotts Creek.
Instream monitoring is waived as long as this facility is a member of the Yadkin -Pee Dee
River Basin Association and the Association continues to monitor these three stations." If the
facility ends its membership in the Yadkin -Pee Dee River Association or the Association
discontinues monitoring any of these three stations, instream monitoring requirements, for
each station not being monitored as specified in this permit, take effect immediately.
A. (5.) CALCULATION OF TOTAL PHOSPHORUS LOADS (seasonal)
a. The Permittee shall calculate monthly and seasonal TP Loads as follows:
Monthly TP Load (pounds/month) = TP x TMF x 8.34
where:
TP = the average Total Phosphorus concentration (mg/L) of the
composite samples collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the month
(MG/mo)
8.34 = conversion factor, from (mg/L x MG) to pounds
ii. Seasonal TP Load (pounds/year) = Sum of the Monthly TP Loads for the season
b. The Permittee shall report monthly Total Phosphorus results (mg/L and
pounds/mo) in the appropriate discharge monitoring report for that month and the
total load for each season in the following month after the last month of the season.
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Permit NCO024228
A. (6.) CALCULATION AND REPORTING OF NUTRIENT LOADS (monthly & annual)
The Permittee shall calculate and report monthly and annual nutrient loads for the Westside WWTP
as follows:
(a.) Calculation of Discharge Loads: The Permittee shall calculate monthly and annual
discharge loads as follows:
(i.) Monthly Discharge Load (lb/mo, TN or TP) = 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 (MG/mo)
8.34 = conversion factor, from (mg/ L x MG) to pounds
(ii.) Annual Discharge Load (lb/yr, TN or TP) = Sum of the 12 Monthly TN (or TP)
Loads for the calendar year
(b.) Reporting of Nutrient Discharges: The Permittee shall report each facility's monthly
TN and TP discharge loads in that facility's discharge monitoring report. The monthly
reporting parameter codes for TN and TP are QM600 and QM665, respectively.
(c.) The Permittee shall report each calendar year's loads with the December report for
that year and shall append the report with a summary of monthly loads and
calculations. The annual reporting parameter codes for TN and TP are QY600 and
QY665, respectively.
A. (7). MERCURY MINIMIZATION PLAN (MMP).
The permittee shall develop and implement a Mercury Minimization Plan (MMP). The MMP
shall be developed within 180 days of the NPDES Permit Effective Date, and shall be
available for inspection on -site. A sample MMP was developed through a stakeholder
review process and has been placed on the Division website for guidance
(http://portal.ncdenr.org/web/wq/swp/ps/npdes, under Model Mercury Minimization
Plan). The MMP should place emphasis on identification of mercury contributors and goals
for reduction. Implementation shall occur during the next permit cycle and the results
shall be summarized and submitted with the permit renewal application submitted for the
permit expiring on April 30, 2019.
A. (8.) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to.Ceriodaphnia dubia at an effluent concentration of 90 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in
the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or
subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
January, April, July, and October. Effluent sampling for this testing 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 -February 1998) or subsequent versions.
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Permit NCO024228
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are
specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -
February 1998) 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 TGP313 for the pass/fail results and THP313 for the Chronic Value. Additionally, DWQ
Form AT-3 (original) is to be sent to the following address:
Attention: NC DENR / DWQ / Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental 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 stream.
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 "No Flow" in the comment area of the form. The report shall be submitted
to the Environmental Sciences Branch at the address cited above. Should the permittee fail to
monitor during a month in which toxicity monitoring is required, monitoring will be required during
the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of
such monitoring shall be included in the calculation & reporting of the data submitted on the DMR &
all AT Forms submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate environmental
controls, shall constitute an invalid test and will require immediate follow-up testing to be completed
no later than the last day of the month following the month of the initial monitoring.
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Permit NCO024228
A. (9.) EFFLUENT POLLUTANT SCAN
The Permittee shall perform three annual Effluent Pollutant Scans between 7/ 10/2009 and 4/30/2014 for all
parameters listed in the attached table (using a sufficiently sensitive detection
level in accordance with 40 CFR
Part 136). Samples shall represent seasonal variations. 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-dichloropropylene
4-bromophenyl phenyl ether
Kjeldahl nitrogen
Ethylbenzene
Butyl benzyl phthalate
Oil and grease
Methyl bromide
2-chloronaphthalene
Phosphorus
Methyl chloride
4-chlorophenyl phenyl ether
Total dissolved solids
Methylene chloride
Chrysene
Hardness
1,1,2,2-tetrachloroethane
Di-n-butyl phthalate
Antimony
Tetrachloroethylene
Di-n-octyl phthalate
Arsenic
Toluene
Dibenzo(a,h)anthracene
Beryllium
1, 1, 1 -trichloroethane
1,2-dichlorobenzene
Cadmium
1,1,2-trichloroethane
1,3-dichlorobenzene
Chromium
Trichloroethylene
1,4-dichlorobenzene
Copper
Vinyl chloride
3,3-dichlorobenzidine
Lead
Acid -extractable compounds:
Diethyl phthalate
Mercury (Method 1631E)
P-chloro-m-cresol
Dimethyl phthalate
Nickel
2-chlorophenol
2,4-dinitrotoluene
Selenium
2,4-dichlorophenol
2,6-dinitrotoluene
Silver
2,4-dimethylphenol
1,2-diphenylhydrazine
Thallium
4,6-dinitro-o-cresol
Fluoranthene
Zinc .
2,4-dinitrophenol
Fluorene
Cyanide
2-nitrophenol
Hexachlorobenzene
Total phenolic compounds
4-nitrophenol
Hexachlorobutadiene
Volatile organic compounds:
Pentachlorophenol
Hexachlorocyclo-pentadiene
Acrolein
Phenol
Hexachloroethane
Acrylonitrile
2,4,6-trichlorophenol
Indeno(1,2,3-cd)pyi7ene
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
Test results shall be reported to the Division in DWQ Form- A MR-PPA1 or in a form approved
by the Director within 90 days of sampling. The report shall be submitted to the following
address: NC DENR / DWQ / Central Files, 1617 Mail Service Center, Raleigh, NC 27699-1617.
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NPDES Permit Standard Conditions
Page 1 of 18
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be
representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days. These samples shall be representative of
the wastewater discharged during the sample period.
Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et.
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system, which is
not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 niL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The
Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval
between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite
samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period
of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with
the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow
measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the
preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
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NPDES Permit Standard Conditions
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(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a
constant time interval. Use of this method requires prior approval by the Director. This method may only be
used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply:
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
➢ Influent samples shall not be collected more than once per hour.
➢ Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period.
➢ Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling
period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be
monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as
the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the
"daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also
"Composite Sample," above.)
Daily Maximum
The highest "daily discharge" during the calendar month.
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the
permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations
prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that
requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWQ or "the Division"
The Division of Water Quality, Department of Environment and Natural Resources.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point source
whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this
permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N = the number of individual values. For purposes of
calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1.
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be
collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream
samples).
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NPDES Permit Standard Conditions
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Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA.
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result in
that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Permit Issuing Authority
The Director of the Division of Water Quality.
Quarterly Average (concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe pLopejU damage
Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or
substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a)(1) of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
Weekly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of
the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or
modification; or denial of a permit renewal application [40 CFR 122.41 ].
a. The Permttee shall comply with effluent standards or prohibitions established under section 307(a) of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or
standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the
requirement.
b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or
any permit condition or limitation implementing any such sections in a permit issued under section 402, or any
requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is
subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR
122.41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of
the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402
of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or
402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
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NPDES Permit Standard Conditions
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imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent
violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by
imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)]
d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal
penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the
case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both.
[33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and
who knows at that time that he thereby places another person in imminent danger of death or serious bodily
injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than
15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a
person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or
both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating
the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)]
f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of this Act. Administrative penalties for Class I violations are not to
exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed
$37,500. Penalties for Class Il violations are not to exceed $16,000 per day for each day during which the
violation continues, with the maximum amount of any Class II penalty not to exceed $177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)]
2. Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41(d)].
3. Civil and Criminal Liability
Except as provided in permit conditions on 'Bypassing" (Part II.C.4), "Upsets" (Part II.C.5) and "Power Failures"
(Part II.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities,
or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC
1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the
responsibility for effective compliance may be temporarily suspended.
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
5. Property Rights
The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive
privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any
infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
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7. Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the
remainder of this permit, shall not be affected thereby [NCGS 15013-23].
8. Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit
Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)].
9. Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Permittee must apply for and obtain a new permit [40 CFR 122.41(b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to
discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required
by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director. (The Director shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not
requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to
enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40
CFR 122.41(k)].
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge
of a principal business function, or any other person who performs similar policy or decision making
functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating
facilities, provided, the manager is authorized to make management decisions which govern the operation
of the regulated facility including having the explicit or implicit duty of making major capital investment
recommendations, and initiating and directing other comprehensive measures to assure long term
environmental compliance with environmental laws and regulations; the manager can ensure that the
necessary systems are established or actions taken to gather complete and accurate information for permit
application requirements; and where authority to sign documents has been assigned or delegated to the
manager in accordance with corporate procedures .
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person. A
person is a duly authorized representative only if-
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall operation
of the regulated facility or activity, such as the position of plant manager, operator of a well or well field,
superintendent, a position of equivalent responsibility, or an individual or position having overall
responsibility for environmental matters for the company. (A duly authorized representative may thus be
either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22]
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c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because
a different individual or position has responsibility for the overall operation of the facility, a new authorization
satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports, information, or applications to be signed by an authorized representative [40 CFR
122.22]
d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following
certification [40 CFR 122.221. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system 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, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are sign f cant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations. "
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the
Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes
or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)].
13. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al.
14. Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Owners of classified water pollution control systems must designate operators, certified by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the
system, and, for each classification must [T15A NCAC 08G .0201]:
a. designate one Operator In Responsible Charge (ORC) who possesses a valid certificate of the type and grade at
least equivalent to the type and grade of the system;
b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system, with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year; and
c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission
(or to the local health department for owners of subsurface systems) countersigned by the designated certified
operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible
Charge (Back-up ORC):
(1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or
(2) within 120 calendar days following:
➢ receiving notification of a change in the classification of the system requiring the designation of a new
Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC)
of the proper type and grade; or
➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in
Responsible Charge (Back-up ORC).
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(3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating
at least one of the responsibilities.
The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least weekly
➢ Comply with all other conditions of 15A NCAC 08G .0204.
The ORC of each Class H, III and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least five days per week, excluding holidays
➢ Properly manage and document daily operation and maintenance of the facility
➢ Comply with all other conditions of 15A NCAC 08G .0204.
2. Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions
of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality
assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only
when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance
of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a
member of the Permittee's staff.
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)].
4. Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the
provisions of Paragraphs b. and c. of this section.
b. Notice [40 CFR 122.41(m)(3)]
(1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice,
if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality
and effect of the bypass.
(2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system -wide collection system
permit associated with the treatment facility.
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(3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c.
(1) of this section.
5. Upsets
a. Effect of an upset [40 CFR 122.41(n)(2)1: An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of
this condition are met. No determination made during administrative review of claims that noncompliance was
caused by upset, and before an action for noncompliance, is final administrative action subject to judicial
review.
b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant
evidence that:
(1) An upset occurred and that the Permittee can identify the cause(s) of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part II.E.6.(b) of this permit.
(4) The Permittee complied with any remedial measures required under Part H.B.2. of this permit.
c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding.
6. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States except as permitted
by the Commission. The Permittee shall comply with all applicable state and Federal regulations governing the
disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR
Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To
Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to
prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources, standby generators or retention of inadequately treated effluent.
Section D. Monitorina and Records
Representative Sampling
Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge.
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this
permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of
water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority [40 CFR 122.41(j)].
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (MR 1, 1. 1, 2, 3) or alternative forms approved by the
Director, postmarked no later than the last calendar day of the month following the completed reporting period.
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. Duplicate signed copies of these,
and all other reports required herein, shall be submitted to the following address:
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NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of
this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4. Test Procedures
Laboratories used for sample analysis must be certified by the Division. Permittees should contact the Division's
Laboratory Certification Section (919 733-3908 or http://portal.ncdenr.org/web/wq/lab/cert) for information
regarding laboratory certifications.
Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field
parameter laboratory certifications.
Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS
143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section
304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal,
approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been
specified in this permit [40 CFR 122.411.
To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported down
to the minimum detection or lower reporting level of the procedure. If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most
sensitive (method with the lowest possible detection and reporting level) approved method must be used.
Penalties for Tampering
The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring
device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not
more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years,
or both [40 CFR 122.41].
6. Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR
503), the Permittee shall retain records of all monitoring information, including:
➢ all calibration and maintenance records
➢ all original strip chart recordings for continuous monitoring instrumentation
➢ copies of all reports required by this permit
➢ copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time [40 CFR
122.411.
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7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the
following information [40 CFR 122.41]:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as
a representative of the Director), upon the presentation of credentials and other documents as may be required by
law, to;
a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the CWA, any substances or parameters at any location [40 CFR 122.41(i)].
Section E Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of
any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute
a violation of the permit.
2. Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility [40 CFR 122.41(1)]. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to
notification requirements under 40 CFR 122.42(a)(1); or
c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and
such alteration, addition or change may justify the application of permit conditions that are different from or
absent in the existing permit, including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)].
4. Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in
particular NCGS 143-215. 1 (b)(4)b.2., and may require modification or revocation and reissuance of the permit, or
a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary
under the CWA [40 CFR 122.41(1)(3), 122.61] or state statute.
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5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)].
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge, the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment. Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances. A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission
shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact
dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to
continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40
CFR 122.41(1)(6)].
b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral
report has been received within 24 hours.
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone], [phone] or [phone].
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the
time monitoring reports are submitted. The reports shall contain the information listed in Part II.E.6. of this permit
[40 CFR 122.41(1)(7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted
incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or
information [40 CFR 122.41(l)(8)].
9. Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division
as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first
knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all
or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215. 1 (b)(2) or in Section 309 of the Federal Act.
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11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement, representation, or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than
$25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41].
12. Annual Performance Reports
Permittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an annual
report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.IC). The
report shall summarize the performance of the collection or treatment system, as well as the extent to which the
facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The
report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which
annual period is used for evaluation.
The report shall be sent to:
NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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PART III
OTHER REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment
capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an
Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements
under Item b. of this Section.
b. In accordance with NCGS 143-215.1(a5) [SL 2011-3941, no permit shall be required to enter into a contract for the
construction, installation, or alteration of any treatment work or disposal system or to construct, install, or alter any
treatment works or disposal system within the State when the system's or work's principle function is to conduct,
treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and
the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the
industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the
discharge may be modified if required by federal regulation.
c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The. Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of
any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following
"notification levels";
(1) One hundred micrograms per liter (100 µg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter
(500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for
antimony;
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent
basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification levels";
(1) Five hundred micrograms per liter (500 µg/L);
(2) One milligram per liter (1 mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered
by this permit. The Division may require specific measures during deactivation of the system to prevent adverse
impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the
permitted facility.
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PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Definitions
In addition to the definitions in Part II of this permit, the following definitions apply to municipal facilities:
Indirect Discharge or Industrial User
Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section
307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and 0) and 15A NCAC 02H .0903(b)(11)]
Interference
Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which
causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the
Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in
compliance with specified applicable State and Federal statutes, regulations, or permits. [I5A NCAC 02H
.0903(b)(14)]
Pass Through
A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with
discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of
the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge
permit. [I5A NCAC 02H .0903(b)(23)]
Publicly Owned Treatment Works (POTW)
A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization.
This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal
sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T
.0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government
organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges
to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW
treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of
POTW may be referred to as a "satellite POTW organization." [I5A NCAC 02H .0903(b)(26)]
"Significant Industrial User" or "SIU"
An Industrial User that discharges wastewater into a publicly owned treatment works and that [I5A NCAC 02H
.0903(b)(33)]:
1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary,
noncontact cooling and boiler blowdown wastewaters); or
2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted
flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS
and ammonia; or
3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or
4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely
affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent
limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options;
5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the
POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and
conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a
Significant Industrial User (SIU); or
6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a
non -significant categorical Industrial User.
Section B. Publicly Owned Treatment Works (POTWs)
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All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]:
Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of
transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants;
and
Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as
influent to that POTW at the time of issuance of the permit.
For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of effluent
introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW.
Section C. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users
discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information
becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent
limitations for any or all of such other pollutants in accordance with best practicable technology or water quality
standards.
2. Prohibited Discharges
a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the
introduction of pollutants or discharges into the waste treatment system or waste collection system which
cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40
CFR 403.5(a)(1)]
b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the
introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]:
(1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to,
wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade
using the test methods specified in 40 CFR 261.21;
(2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower
than 5.0, unless the works is specifically designed to accommodate such discharges;
(3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in
Interference;
(4) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate
and/or pollutant concentration which will cause Interference with the POTW;
(5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no
case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F)
unless the Division, upon request of the POTW, approves alternate temperature limits;
(6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
(7) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that
may cause acute worker health and safety problems; or
(8) Any trucked or hauled pollutants, except at discharge points designated by the POTW.
c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other
unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or
the operation of the POTW.
The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office.
Any information shall be provided orally within 24 hours from the time the Permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes
aware of the circumstances. The written submission shall contain a description of the discharge; the
investigation into possible sources; the period of the discharge, including exact dates and times; if the
discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate, and prevent reoccurrence of the noncompliance,
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3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to
supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by
the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding
some or all of the industries discharging to the municipal system.
4. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment
Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and
specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from
any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new
Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as
required under section D below as well as 15A NCAC 02H .0907(a) and (b). [40 CFR 122.440)(2)]
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW
Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program
as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the
approved State pretreatment program, as appropriate.
Section D. Pretreatment Prop -rams
Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403,
North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance
with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment
program submittal are an enforceable part of this permit. [40 CFR 122.440)(2)]
The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40
CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained in
its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is
not limited to the implementation of the following conditions and requirements. Terms not defined in Part Il or Part IV
of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3.
1. Sewer Use Ordinance (SUO)
The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A
NCAC 02H .0903(b)(32), .0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)]
2. Industrial Waste Survey (IWS)
The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or
treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.440)(1)],
including identification of all Industrial Users that may have an impact on the POTW and the character and amount
of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users
meeting the definition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs, the
IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those
satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The
Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as
required by the Division. The IWS submission shall include a summary of any investigations conducted under
paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(f)(2) and 403.9]
3. Monitoring Plan
The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to
be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment
local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts II.D and II.E.5.). [15A
NCAC 02H .0903(b)(16), .0906(b)(3) and .0905]
4. Headworks Analysis (HWA) and Local Limits
The Permittee shall obtain Division approval of a HWA at least once every five years, and as required by the
Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the
Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an
updated HWA or documentation of why one is not needed) [40 CFR 122.44]. The Permittee shall develop, in
accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions
listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are
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enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and
.0906(b)(4)]
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for
operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works. These
permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special
conditions, and compliance schedules as necessary for the installation of treatment and control technologies to
assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The
Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the HWA and the limits
from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii);
NCGS 143-215.67(a)]
6. Authorization to Construct (AtQ
The Permittee shall ensure that an Authorization to Construct permit (AtQ is issued to all applicable Industrial
Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the
proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all
Industrial User Pretreatment Permit (IUP) limitations. [15A NCAC 02H .0906(b)(7) and .0905; NCGS 143-
215.1(a)(8)]
7. POTW Inspection & Monitoring of their IUs
The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division
approved pretreatment program in order to determine, independent of information supplied by Industrial Users,
compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The
Permittee must:
a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year;
b. Sample all Significant Industrial Users (SIUs) at least once per calendar year for all SIU permit -limited
parameters including flow except as allowed under 15A NCAC .0908(e); and
c. At least once per year, document an evaluation of any non -significant categorical Industrial User for
compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non-
significant.
8. IU Self Monitoring and Reporting
The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting
requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit, or in 15A
NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR
122.440)(2) and 40 CFR 403.12]
9. Enforcement Response Plan (ERP)
The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards
promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards
as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations, and other pretreatment
requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response
Plan (ERP) approved by the Division. [15A NCAC 02H .0903(b)(7), .0906(b)(8) and .0905; 40 CFR 403.8(f)(5)]
10. Pretreatment Annual Repgrts (PAR)
The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual
reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a
partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment
requirements and other pretreatment implementation issues.
For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report
(PAR) describing its pretreatment activities over the previous calendar year to the Division at the following
address:
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NC DENR / Division of Water Quality / Surface Water Protection Section
Pretreatment, Emergency Response, and Collection Systems (PERCS) Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
These reports shall be submitted by March 1 of each year and shall contain the following:
a. Narrative
A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non-
compliance and to ensure compliance with pretreatment requirements;
b. Pretreatment Program Summary (PPS)
A pretreatment program summary (PPS) on forms or in a format provided by the Division;
c. Significant Non -Compliance Report (SNCR)
A list of Industrial Users (IUs) in significant noncompliance (SNC) with pretreatment requirements, and the
nature of the violations on forms or in a format provided by the Division;
d. Industrial Data Summary Forms (IDSF)
Monitoring data from samples collected by both the POTW and the Significant Industrial Users (SIUs). These
analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format
provided by the Division;
e. Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of
IUs in SNC, a summary of data or other information related to significant noncompliance determinations for
IUs that are not considered SLUs, and any other information, upon request, which in the opinion of the Director
is needed to determine compliance with the pretreatment implementation requirements of this permit;
11. Public Notice
The Permittee shall publish annually a list of Industrial Users (IUs) that were in significant noncompliance (SNC)
as defined in the Permittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements
and standards during the previous twelve month period. This list shall be published within four months of the
applicable twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(bx5) and .0905 and 40 CFR
403.8(f)(2)(viii)]
12. Record Keeping
The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with
support information including general records, water quality records, and records of industrial impact on the
POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [15A
NCAC 02H .0908(f); 40 CFR 403.12(o)]
13. Pretreatment Program Resources
The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved
pretreatment program. and retain a written description of those current levels of inspection. [ 15A NCAC 02H
.0906(b)(9) and (10) and .0905; 40 CFR 403.8(f)(3), 403.9(b)(3)]
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW
monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a
permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907.
Version 11/09/2011

Public Services Department
RECEIVED
j N.C.Deot. of ENP,
JUL 3 0 2013
Winston-Salem
Regional Office
July 19, 2013
NORTH CAROLINNS INTERNATIONAL CITY`
Seth Robertson, P.E. RECE1\/F n
Design Management Unit Supervisor JUL 2 6 2013
North Carolina Department of Environmental and Natural Resources
Division of Water Quality
tnfrastructare �Vww�
Infrastructure Finance Section
1633 Mail Service Center
Raleigh, North Carolina 27699-1633
Arm A:� IP�2::Z84&3
Re: Request Letter for Authorization to Construct
High Point Westside Wastewater Treatment Plant
Improvements — Phase 3
High Point, North Carolina
Dear Mr. Robertson:
The High Point Westside Wastewater Treatment Plant is an advanced treatment facility owned and operated by
the City of High Point, North Carolina. The plant has recently undergone upgrades to the preliminary treatment
facilities as well as the effluent filters, UV facilities, and solids handling facilities. These projects were Phase I
and 2 of a three phase improvement project. Recently, the plant received the modified NPDES permit,
NC0024228, allowing the expansion of the facility from its current capacity of 6.2 mgd to a phased capacity
expansion to 8.2 mgd followed by a capacity expansion to 10 mgd. As stated in the NPDES permit, this
application for Authorization to Construct is requested for the 10 mgd capacity expansion facility. This project
(Phase 3) will include upgrades to the plant that will allow for expansion of existing facilities, as well as,
improvements to facilities to meet the new NPDES permit. Specifically, this project will include expansion and
improvements to the existing aeration tanks to provide for biological nutrient removal (BNR), a nitrified recycle
(NRCY) pump station, new aeration blower facilities, upgrade of two existing primary clarifiers, upgrade of two
existing secondary clarifiers, construction of an additional secondary clarifier. and chemical phosphorous removal
storage and feed facilities.
We wish to obtain Authorization to Construct (ATC), and are providing this letter of request and "Design
Information" package in fulfillment of the application requirements for ATC. All appropriate documentation
including plans, specifications, and engineering calculations. as requested in the ATC requirements, are included
City of High Point, P.O. Box 230, 211 South Hamilton Street, High Point, NC 27261 USA
Fax:[phone] Phone:[phone] TDD:336.883.8517

Public Services Department
NORTH CAROLINA'S INTERNATIONAL CITY
in this submittal. It is anticipated that the project will take 30 months to complete after notice to proceed is
awarded to a contractor.
Best Rewards.
Terry Houk
Assistant Director of Public Services
City of High Point
Attachments:
Design Calculations (2 copies)
Technical Specifications (2 copies)
Design Drawings (2 copies)
Copies to:
W. Chris Thompson, Director of Public Services
John Hodges, Wastewater Plants Manager
Todd Johnson, Hazen and Sawyer
Mike Slusher. Davis Martin Powell
File
City of High Point, P.O. Box 230, 211 South Hamilton Street, High Point, NC 27261 USA
Fax: 336.883,1675 Phone: [phone] TDD: 336.883,8517

1.0 General Information
1.1 Project Description
The High Point Westside Wastewater Treatment Plant is an advanced treatment facility
owned and operated by the City of High Point, North Carolina. The plant has recently
undergone upgrades to the preliminary treatment facilities as well as the effluent filters,
UV facilities, and effluent pump station. These projects were Phase 1 and 2 of a three
phase improvement project. Copies of the Authorizations to Construct and design
calculations for Phase 1 and Phase 2 projects are included as Appendix D, E, and F of
this Design Calculation book for reference.
Recently, the plant received a revised draft NPDES permit allowing the expansion of the
facility from its current capacity of 6.2 mgd to a two-part expanded capacity of 8.2 mgd
followed by a capacity of 10 mgd. This project (Phase 3) will include upgrades to the
plant that will allow for replacement of aging facilities as well as expansion of facilities
to meet the new draft NPDES permit.
Several areas of treatment require modifications and expansion in order for the plant to
meet new NPDES permit limits at an expanded flowrate of 10 mgd. The proposed
project will provide facilities required to relieve current operational and maintenance
concerns as well as expand the plant to 10 mgd while meeting new permit limits. The
WWTP processes/facilities that will be expanded and/or upgraded as part of Phase 3
construction are described herein.
There are currently two 70-foot diameter primary clarifiers at the plant. Both primary
clarifier drives and mechanisms are approximately 25 years old and have suffered
structural damage requiring repair in the past. Mechanisms, weirs, and scum baffles will
be replaced to provide future reliability. The existing primary clarifiers are capable of
treating wastewater flows up to approximately 24 mgd. The peak flow for the 10 mgd
expansion will be 30 mgd, therefore approximately 6 mgd of influent plant flow will be
bypassed around the primary clarifiers directly into the BNR tanks, alleviating the need to
construct additional primary clarifiers.
Currently, the Westside WWTP has alum chemical feed facilities for chemical
phosphorous removal. Use of biological Phosphorus (P) removal for the purposes of
meeting the revised summer and winter phosphorus limits at the plant was evaluated and
it was determined that biological phosphorous removal with chemical trimming was a
more economical approach in the long-term in lieu of the current chemical phosphorous
removal program. Therefore, the proposed system is a 5-stage biological nutrient
removal (BNR) system designed to remove total phosphorous (TP) to a level of 1 mg/l,
City of High Point Westside WWTP State Submittal
Improvements — Phase 3 2 Hazen and Sawyer, Davis Martin Powell
0:\3460\3460-012\Eng\State Submittal\State Submittal Package (Phase 3).docx

with chemical trimming used to achieve TP to a level of 0.3 mg/1. The 5-stage process
provides anaerobic, anoxic, and aerobic stages for phosphorous, nitrogen and BOD
removal. A second anoxic stage is provided for additional denitrification. The BNR
basin effluent channel will be aerated with fine bubble diffusers to strip residual nitrogen
gas from solution and to minimize phosphorous release into the final clarifiers.
In order to implement the proposed BNR process the BNR tanks will be equipped with
new diffused aeration equipment, mechanical mixing equipment, nitrified recycle
(NRCY) pumps and associated piping and structural modifications. In addition, the BNR
process includes additional treatment volume for increased capacity and wastewater
treatment. A NRCY pump station and blower building will be constructed on the north
side of the new BNR tanks. New blowers are required for a 10 mgd expansion.
Currently, the plant has two 90-foot diameter final clarifiers. The clarifiers are suction
header type clarifiers and sludge is removed using three return activated sludge (RAS)
pumps housed in the existing RAS pumping station. Each of the RAS pumps is rated for
approximately 3.1 MGD, providing a firm capacity of 100 percent of the influent flow.
The existing pumps are horizontal centrifugal pumps. Similar to the primary clarifiers,
the existing 90-foot final clarifier mechanisms have suffered structural damage and have
required repair in the past. The drives and mechanisms are approximately 25 years old
and will require replacement in the near future. Mechanisms, weirs, and scum baffles of
the existing final clarifiers will be replaced to provide for future reliability.
A new 130-foot diameter final clarifier will be constructed to provide additional volume
for the 10 mgd expansion. The new clarifier will have a sidewall depth of 15 feet and
have suction header type mechanism consistent with current equipment at the Westside
WWTPs. A final clarifier flow distribution structure will be constructed at the end of the
BNR tanks to split flow between the new and the existing clarifiers. Two new RAS
pumps will be installed to serve the new clarifier. These new RAS pumps will be located
in the newly constructed effluent filter building.
Standby power is addressed by the City of High Point — Electric. The Westside WWTP
has a peak saving/standby generator on site and the WWTP uses this generator for
standby power.
1.2 NPDES Permit
The plant discharges its effluent into Rich Fork Creek, which is a tributary of High Rock
Lake. Due to low dissolved oxygen concentrations in Rich Fork Creek, the stream has
been labeled impaired. An Engineering Alternatives Analysis (EAA) was submitted in
March 2009 by Hazen and Sawyer to the Division of Water Quality (DWQ) prior to
issuance of speculative effluent limits. The EAA concluded that the most feasible and
City of High Point Westside WWTP State Submittal
Improvements — Phase 3 3 Hazen and Sawyer, Davis Martin Powell
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cost effective effluent discharge option was the expansion of the effluent discharge into
Rich Fork Creek. A final Environmental Assessment and FONSI was sent to the
Department of Administration Environmental Clearinghouse in December 2010 by
DWQ. The project cleared on January 4, 2011.
DWQ agreed to grant a plant capacity increase from 6.2 mgd to 8.2 mgd to allow for a
better prediction of effects incurred by the Rich Fork Creek stream restoration. The
stream restoration project will be bid with the Phase 3 plant improvements. The City will
perform an intensive monitoring survey of Rich Fork Creek in the summer following the
completion of the stream restoration project. Data collected from the summer monitoring
survey will be used to re -calibrate the water quality model. The re -calibrated water
quality model will then be used to validate the 10 mgd expansion. Upon completion of
the restoration project, monitoring, and model validation, the City will be authorized to
increase the Westside WWTP capacity from 8.2 to 10 mgd. The complete draft NPDES
Permit is attached in Appendix A.
1.3 Sedimentation and Erosion Control Permit
The Sedimentation and Erosion Control Permit is being prepared and will be submitted to
the Winston-Salem Regional Office's Land Quality Section by August, 2013. The
approved permit and associated conditions will be incorporated into the Contract
Documents.
1.4 Construction Sequencing Plan
Construction sequencing is addressed in the Section 01520, of the Contract
Specifications.
City of High Point Westside WWTP State Submittal
Improvements — Phase 3 4 Hazen and Sawyer, Davis Martin Powell
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