NC0021873_Permit (Issuance)_20021203

NPDES DOCUHENT 5CANNIN`: COVER SHEET
NPDES Permit:
NC0021873
Mayodan WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 3, 2002
This documerit is printed on reuse paper - ignore any
content on the rezrerse side

vv
Michael F. Easley, Governor
r
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
December 3, 2002
Mrs. Debra Cardwell
Town Manager
210 West Main Street
Mayodan, North Carolina 27027
Subject: Issuance of NPDES Permit NC0021873
Mayodan WWTP
Rockingham County
Dear Mrs. Cardwell:
Division staff have reviewed and approved your renewal application for an NPDES discharge permit. Accordingly, the
Division is forwarding the subject NPDES 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 May 9, 1994 (or as subsequently amended).
The final permit includes weekly average limits for ammonia. The U.S. EPA required the Division to develop a policy to
implement weekly average ammonia limits for municipal facilities by October 2002. The weekly average limit is established
based on a ratio of 3:1 (weekly average: monthly average). The corresponding weekly average limits in your permit are 35.0
mg/L for the summer for the 3.0 MGD flow and 27.9 mg/L for the summer and 35.0 mg/L for the winter for the 4.5 MGD
flow. See the enclosed ammonia policy memo for details.
The permit contains limits and monitoring requirements for the expanded flow of 4.5 MGD. An Authorization to Construct
must be obtained from the Division for the construction of the expanded facilities.
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 a demand is
made, this permit shall be final and binding.
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, the Division of Land Resources, the Coastal Area Management Act, or any other federal or local
governmental permit.
If you have any questions concerning this permit, please contact Teresa Rodriguez at telephone number [phone],
extension 595.
Sincerely,
"ORIGINAL SIGNED BY
SUSAN A. WILSON
Alan W. Klimek, P.E.
cc: Central Files
NPDES Unit
U.S. EPA Region 4
Winston Salem Regional Office
Aquatic Toxicology Unit
Technical Assistance & Certification Unit
ATM
North Carolina Division of Water Quality [phone] NCDENR
1617 Mad Service Center FAX [phone] Customer Service
Raleigh, North Carolina 27699-1617 On the Internet at htto://h2o.enr.state.nc.us/ 1 B00 623-7748

Permit NC0021873
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 provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended, the
Town of Mayodan
is hereby authorized to discharge wastewater from a facility located at the
Mayodan WWTP
NC Highway 135 West
Southeast of Mayodan
Rockingham County
to receiving waters designated as the Mayo River in the Roanoke River Basin in accordance
with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II,
III and IV hereof.
The permit shall become effective January 1, 2003.
This permit and the authorization to discharge shall expire at midnight on May 31, 2007.
Signed this day December 3, 2002.
ORIGINAL SIGNED BY
SUSAN A. WILSON
Alan Klimek, P. E.
Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC00218733
SUPPLEMENT TO PERMIT COVER SHEET
The Town of Mayodan is hereby authorized to:
1. Continue to operate an existing 3.0 MGD wastewater treatment facility
located off NC Highway 135 southeast of Mayodan in Rockingham
County, and consisting of the following wastewater treatment
components:
• Mechanical bar screen
• Grit removal
• Dual path aeration basins
• Secondary clarifiers
• Chlorination
• Dechlorination
• Sludge thickener
• Aerobic digester
• Sludge drying beds
2. After receiving an Authorization to Construct from the Division,
construct and operate wastewater treatment facilities with an ultimate
capacity of 4.5 MGD.
3. Discharge from said treatment works via outfall 001 into the Mayo
River, a class C stream in the Roanoke River Basin, at the location
specified on the attached map.

Town of Mayodan WWTP
State Grid rat: Mayodan Latitude 36" 24' 25" N
B 19 NW Lan ate 79° 57 56" W
ReorivintSt rema Mayo River DratnageBast= Roanoke
sarearnClase C sub -Bad 03-02-02
North
NPDES Peamit No. NC0021873
Rockingham County

Permit NC0021873
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (3.0 MGD)
Beginning on the effective date of this permit and lasting until expansion beyond 3.0 MGD, the
Permittee is authorized to discharge treated wastewater from Outfall 001. Such discharges shall be
limited and monitored by the Permittee as specified below:
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
CHARACTERISTICS-EFFLUET
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location'
Flow
3.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C 2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
NH3 as N
(April 1- October 31)
14.0 mg/L
35.0 mg/L
Daily
Composite
Effluent
NH3 as N
(November 1- March 31)
3/Week
Composite
Effluent
Total Residual Chlorine
28 pg/L
Daily
Grab
Effluent
Fecal Coliform
(geometric mean)
200/100 ml
400/100 ml
Daily
Grab
Effluent
pH3
Daily
Grab
Effluent
Dissolved Oxygen
Daily
Grab
Effluent
Temperature
Daily
Grab
Effluent
Total Nitrogen (NO2+NO3+TKN)
Monthly
Composite
Effluent
Total Phosphorus
Monthly
Composite
Effluent
- Conductivity
Daily
Grab
Effluent
Total Mercury
0.21 pg/L
Weekly
Composite
Effluent
tal Copper
Weekly
Composite
Effluent
1 Chronic Toxicity.*
Quarterly
Composite
Effluent
Notes:
1. See Part A. (3) for instream sampling requirements.
2. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent
value (85% removal).
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. Chronic Toxicity (Ceriodaphnia) at 6% with testing in March, June, September and December (see A. (4)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

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•
Permit NC0021873
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (4.5 MGD)
Beginning on the effective upon expansion beyond 3.0 and lasting until expiration, the Permittee is authorized to
discharge treated wastewater from Outfall 001. Such discharges shall be limited and monitored by the Permittee
as specified below:
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location'
Flow
4.5 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C 2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
NH3 as N
(April 1 - October 31)
9.3 mg/L
27.9 mg/L
Daily
Composite
Effluent.
NH3 as N
(November 1 - March 31)
27.5 mg/L
35 mg/L
Daily
Composite
Effluent
Total Residual Chlorine
28 jug&L
Daily
Grab
Effluent
Fecal Coliform
(geometric mean)
200/100 mi
400/100 ml
Daily
Grab
Effluent
pH3
Daily
Grab
Effluent
Dissolved Oxygen
Daily
Grab
Effluent
Temperature
Daily
Grab
Effluent
Total Nitrogen (NO2+NO3+TKN)
Monthly
Composite
Effluent
Total Phosphorus
Monthly
Composite
Effluent
Conductivity
Daily
Grab
Effluent
Total Mercury
0.14 pug/L
Weekly
Composite
Effluent
Total Zinc
Weekly
Composite
Effluent
Total Copper
Weekly
Composite
Effluent
Chronic Toxicity's
Quarterly
Composite
Effluent
Notes:
1. See Part A. (3) for instream sampling requirements.
2. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent
value (85% removal).
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. Chronic Toxicity (Ceriodaphnia) at 9 % with testing in March, June, September and December (see A. (5)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NC0021873
A. (3) INSTREAM MONITORING REQUIREMENTS
Parameter
Monitoring Requirements
Measurement Frequency
Sample Type
Sample Location
Dissolved Oxygen
June -September
3/week
Grab
Upstream at NC Hwy 135,
Downstream at NCSR 2177
October -May
1/week
Temperature
June -September
3/week
Grab
Upstream at NC Hwy 135,
Downstream at NCSR 2177
October -May
1 /week
pH
June -September
3/week
Grab
Upstream at NC Hwy 135,
Downstream at NCSR 2177
October -May
1 /week
Conductivity
June -September
3/week
Grab
Upstream at NC Hwy 135,
Downstream at NCSR 2177
October -May
1 /week
A. (4) QUARTERLY CHRONIC TOXICITY PERMIT LIMIT (3.0 MGD)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 6.0 %.
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 March, June, September and December. 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.
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 TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: NC DENR / DWQ / Environmental Sciences
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences 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.
ranch
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.

Permit NC0021873
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.
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.
A. (5) QUARTERLY CHRONIC TOXICITY PERMIT LIMIT (4.5 MGD)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 9.0 %.
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 March, June, September and December. 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.
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 TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: NC DENR / DWQ / Environmental Science
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences o 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.
tz
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.
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.

Permit NC0021873
A. (6) Effluent Pollutant Scan
The permittee shall perform an annual Effluent Pollutant Scan for all parameters listed in the attached table (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 P-chloro-m-creso 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)pyrene
Benzene Base -neutral compounds: Isophorone
Bromoform Acenaphthene Naphthalene
Carbon tetrachloride Acenaphthylene Nitrobenzene
Chlorobenzene Anthracene N-nitrosodi-n-propylamine
Chlorodibromomethane Benzidine N-nitrosodimethylamine
Chloroethane Benzo(a)anthracene N-nitrosodiphenylamine
2-chloroethylvinyl ether Benzo(a)pyrene Phenanthrene
Chloroform 3,4 benzofluoranthene Pyrene
Dichlorobromomethane Benzo(ghi)perylene 1,2,4-trichlorobenzene
1,1-dichloroethane Benzo(k)fluoranthene
1,2-dichloroethane Bis (2-chloroethoxy) methane
Test results shall be reported to the Division in DWQ Form- DMR-PPA1 or in a form approved by the Director,
within 90 days of sampling. A copy of the report shall be submitted to Central Files to the following address:
Division of Water Quality, Water Quality Section/Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
��, yw REGION 4
�% T ATLANTA FEDERAL CENTER
o= 61 FORSYTH STREET
fir' 4 PRose- ATLANTA, GEORGIA 30303-8960
November 18, 2002
Ms. Teresa Rodriguez
North Carolina Department of Environment
and Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJ: Town of Mayodan WWTP - NPDES No. NC0021873
Dear Ms. Rodriguez:
rj)ri
Pli
U' NOV 2 1 2002
• A;ER:: IA! ✓
i'rNr�•�J 1. fT'.
PONT1SOURCE FO:.ANCH
In accordance with the EPA/NCDENR MOA, we have completed review of the permit
referenced above and have no objections to the draft permit conditions. We request that we be
afforded an additional review opportunity only if significant changes are made to the permit prior
to issuance, or if significant comments regarding the draft permit are received. Otherwise, please
send us one copy of the final permit when issued.
If you have any questions, please call me at [phone].
Madoln S. Dominy, Env'lrtSnmental Engineer
Permits, Grants and Technical Assistance Branch
Water Management Division
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 30% Postconsurner)

Comments on gown of Mayodan WWTP (NC0021873)
Subject: Comments on Town of Mayodan WWTP (NC0021873)
Date: Wed, 06 Nov 2002 12:00:02 -0500
From: [e-mail]
To: [e-mail]
Teresa,
I have reviewed the draft permit for the Town of Mayodan WWTP, NPDES
Permit No. NC0021873, and offer the following comments. Can you respond
to me by 11/13/02 so that I have time to prepare a comment letter, if
needed?
If you need to contact me, you can do so via e-mail or telephone at
[phone].
Thanks,
Madolyn Dominy
Comments:
1) The cover letter to the draft permit states that the Division may
re -open the permit to require weekly average limits for ammonia. Since
the Division's policy became effective in October, EPA feels that the
Division should begin conducting the RP analysis for NH3 during the
permit issuance process rather than re -open permits. The RP analysis
should be conducted now using past ammonia data and a weekly average
limit be put into the permit, if necessary.
2) The permit application does not have a complete PPA. Was a complete
PPA scan done by the facility? If so, could you please submit a copy
for our files. You did include the annual PPA scan requirement in the
permit.
1 of 1 11 / 18/2002 1:01 PM

Re: Comments -on Town of Mayodan WWTP (NC0021873)
•
Subject: Re: Comments on Town of Mayodan WWTP (NC0021873)
Date: Thu, 07 Nov 2002 14:48:21 -0500
From: Teresa Rodriguez <[e-mail]>
Organization: NC DENR DWQ
To: [e-mail]
Madolyn,
I will add the limits for ammonia, this was drafted before the policy was
finalized. We are going to be adding the ammonia limits to those permits
that were in the process of been drafted or were sent out to notice around
the time the policy was finalized.
They did a priority pollutant sacan and I'm waiting to get the results.
When I get them I will forward them to you.
Thanks,
Teresa
[e-mail] wrote:
> Teresa,
> I have reviewed the draft permit for the Town of Mayodan WWTP, NPDES
> Permit No. NC0021873, and offer the following comments. Can you respond
> to me by 11/13/02 so that I have time to prepare a comment letter, if
> needed?
> If you need to contact me, you can do so via e-mail or telephone at
> [phone].
> Thanks,
> Madolyn Dominy
> Comments:
> 1) The cover letter to the draft permit states that the Division may
> re -open the permit to require weekly average limits for ammonia. Since
> the Division's policy became effective in October, EPA feels that the
> Division should begin conducting the RP analysis for NH3 during the
> permit issuance process rather than re -open permits. The RP analysis
> should be conducted now using past ammonia data and a weekly average
> limit be put into the permit, if necessary.
> 2) The permit application does not have a complete PPA. Was a complete
> PPA scan done by the facility? If so, could you please submit a copy
> for our files. You did include the annual PPA scan requirement in the
> permit.
1 of 1 12/2/2002 8:02 AM

Town of Mayodan Pemit NC0021873
Subject: Town of Mayodan Pemit NC0021873
Date: Mon, 18 Nov 2002 13:38:35 -0500
From: Teresa Rodriguez <[e-mail]>
Organization: NC DENR DWQ
To: "Dominy.Madolyn @ epamail.epa.gov" <Dominy.Madolyn @epamail.epa.gov>
Madolyn,
I received the PPA data for the Town of Mayodan. They detected the
following parameters: antimony, total phenolic compounds,
chlorodibromomethane and chloroform. None of these were detected above
the Human Health criteria listed, so there are no changes to the draft
permit except for the ammonia weekly limits. I will send you the copy
of the PPA for your records.
Thanks,
Teresa
1 of 1 12/2/2002 8:02 AM

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N OR` u CAROLINA
ROCKINGHAM COUNTY
Before the undersigned, a Notary Public of Said
County and State, duly commissioned, qualified, and
authorized by law to administer oaths, personally
appeared David Clevenger, who being first duly sworn,
deposes and says. That she is an of eial of Media
General of Reidsville, Inc. engaged in the publications of
a newspaper known as The Reidsville Review, pub-
lished, issued and entered as second class mail in the
City of Reidsville, in said County and State; that she is
authorized to make this affidavit and sworn statelment,
that the notice or other legal advertisement, a true copy
of which is attached hereto, was published in •'The
Reidsville Review on the following dates:
--.0_66Y24.(9-e-' 0 2,--
MOMS.
and that the said newspaper in which such notice, paper
document, or legal advertisement was published was, at
the time of'each and every such publication, a newspa-
per meeting all of the requirements and qualifications
of Section I-597 of the General Statutes of North
Carolina and was qualified newspaper within the mean-
ing of Section I-597 of the General Statutes of North
Carolina.
This day of
Sworn to and subscribed before me, this
day of _.
My Commission Expires 3 .5

Draft Permit- Mayodan WWTP
Subject: Draft Permit- Mayodan WWTP
Date: Wed, 06 Nov 2002 16:00:57 -0500
From: John Giorgino <[e-mail]>
To: Teresa Rodriguez <[e-mail]>
Hi Teresa,
Thank you for sending the draft permit for the Town of Mayodan WWTP
(NPDES #0021873) to our unit for review. I do not have any comments or
changes to suggest at this time..
John Giorgino
Aquatic Toxicology Unit
Office: 919 733-2136
Fax: [phone]
1 of 1 11 /7/2002 2:49 PM

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0021873
Facility Information
Applicant/Facility Name:
Town of Mayodan WWTP
Applicant Address:
210 W. Main Street, Mayodan, NC
Facility Address:
Hwy 135, Mayodan, NC
Permitted Flow (MGD)
3.0 (existing)
4.5 (proposed)
Type of Waste:
Existing —Domestic (44%) Industrial (56%)
Proposed — Domestic (61%) Industrial (31%)
Facility Classification:
IV
Permit Status:
Renewal/expansion
County:
Rockingham
Miscellaneous
Receiving Stream
Mayo River
Regional Office:
WSRO
Stream Classification
C
State Grid
B 19 NW
303(d) Listed?
No
USGS Quad:
Mayodan
Basin
Roanoke
Permit Writer:
Teresa Rodriguez
Subbasin
030202
Date:
9/11/02
Drainage Area (mi`)
312
•
Lat. 36° 24' 25" N Long. 79° 57' 56" W
Summer 7Q10 (cfs)
75
Winter 7Q10 (cfs):
131
30Q2 (cfs)
150
Average Flow (cfs)
362
IWC (%)
6% (existing)
8.5% (expansion)
Summary:
The Town of Mayodan submitted a renewal application on August 3, 2001 and subsequently an
application for a modification on November 13, 2001. The permit renewal and the modification will be
considered at the same time. The modification request is to expand the plant from a flow from 3.0
MGD to 4.5 MGD. The town will connect the Town of Stoneville and the Town of Madison to become
a regional facility. The FONSI and the 201 Facilities Plan have been approved and funding was
obtained from Construction Grants and Loans and EDA.
Treatment system description: The existing treatment system consists of a mechanical bar screen,
grit removal system, aeration basins, secondary clarifiers, chlorination, dechlorination, dual secondary
sludge thickener, sludge digester, sludge thickeners and sludge drying beds.
For the proposed expansion the headworks will be upgraded and they will add an aeration basin, a
clarifier, an aerobic digester and a chlorine contact basin.
Pre-treatment: The Town of Mayodan has an approved Pretreatment Program under federal
regulation 40CFR 403 and NC State regulations 15A NCAC 2H.0900. Mayodan has 4 significant
industrial users, Stoneville has 3 significant industrial users and Madison had no industrial users.
Mayodan's pre-treatment program will cover the three towns.
Basin Plan: The Mayo River is classified as Good for benthic microinvertebrates near the NC -VA
border and is classified as Good -Fair at the confluence with the Dan River, downstream of the
discharge.
Fact Sheet
NPDES NC0021873
Renewal
Page 1

Whole Effluent Toxicity The permit has a requirement for a quarterly chronic toxicity test at 6 %
using ceriodaphnia. They failed one test in 2000.
DMR Review: DMRs were reviewed for the period of May 2000 to May 2002. There were no
violations of permit limits.
Reasonable Potential Analysis: Data from the DMRs were used to evaluate reasonable potential.
A PPA was not included with the application. The Town is in the process of sampling and submitting a
PPA. The results of the priority pollutant analysis will be evaluated when they are received. If any
parameter from the PPA show reasonable potential a limit may be included in the final permit.
RPA for 3.5 MGD flow:
Parameter
Allowable
concentration
(pg/I)
(chronic)
Allowable
Concentration
(pg/I)
(acute)
Maximum
predicted
(pg/I)
RP
(Y/N)
Comments
Cadmium
34.3
15
4.1
N
All the values for the last year were below
detection. Eliminate limit and monitoring,
continue monitoring through LTMP.
Copper
119
7.3
256
Y '
Action level parameter, weekly monitoring.
Lead
428
33.8
6.4
N
The highest value detected was 4 pg/I.
Eliminate monitoring from permit, continue
monitoring through LTMP.
Zinc
856
67
300
N
Eliminate monitoring from permit, continue
monitoring through LTMP.
Mercury
0.21
N/A
0.21
Y
Keep limit and monitoring frequency as
existing permit. Because this limit is greater
than the current detection level for Hg, the
new test method (1631) will not be required.
Cyanide
85.6
22
18.2
N
Eliminate monitoring from permit, continue
monitoring through LTMP.
RPA for 4.5 MGD flow:
Parameter
Allowable
concentration
(pg/l)
(chronic)
Allowable
Concentration
(pgll)
(acute)
Maximum
predicted
(pg/I)
RP
(YIN)
Comments
Cadmium
23.5
15
4.1
N
All the values for the last year were below
detection. Eliminate limit and monitoring,
continue monitoring through LTMP.
Copper
82.3
7.3
256
Y
Action level parameter, no changes to permit.
Lead
293.8
33.8
6.4
N
The highest value detected was 4 pg/I.
Eliminate monitoring from permit, continue
monitoring through LTMP.
Zinc
587.6
67
300
Y
Action level standard, add weekly monitoring.
Mercury
0.141
N/A
0.21
Y
Add limit and weekly monitoring. Because
this limit is greater than the current detection
level for Hg, the new test method (1631) will
not be required.
Cyanide
58.8
22
18.2
N
Eliminate monitoring from permit, continue
monitoring through LTMP.
Fact Sheet
NPDES NC0021873
Renewal
Page 2

Permit limits development:
The last WLA was done in August 1996. Speculative limits for the expansion to 4.5 MGD were
developed in March 2000.
Antidegradation
The Town of Mayodan completed a Facilities 201 Plan in which it presented the proposed upgrade
and expansion to 4.5 MGD creating the Western Rockingham County Regional System. The Towns
of Madison and Stoneville will abandon their existing treatment facilities and connect to the
Mayodan's Regional facility. The Division approved the 201 Facilities Plan in September 2001. An
Environmental Assesment was reviewed by the State Clearing house and a Finding of No Significant
Impact (FNSI) was issued by the Division on July, 2001.
The Division has determined that the proposed expansion is necessary to accommodate social and
economic growth in the area and that it will not result in contravention of surface water quality
standards or loss of designated uses in the receiving stream.
SUMMARY OF PROPOSED CHANGES
• Add effluent pages for the expansion to 4.5 MGD. Based on the reasonable potential analysis
results a daily maximum limit was added for mercury and weekly monitoring for zinc.
• Eliminate limits and monitoring requirements for cyanide, lead, zinc and cadmium. These
parameters did not present reasonable potential and are monitored through the LTMP.
• Added a special condition requiring an annual pollutant scan of the effluent.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
October 16, 2002
November 29, 2002
If you have questions regarding any of the above information or on the attached permit, please
contact Teresa Rodriguez at [phone] ext. 595.
NAME: ( 'C_ f� DATE: /0 7/.1
REGIONAL OFFICE COMMENTS
NAME: DATE:
SUPERVISOR: DATE:
Fact Sheet
NPDES NC0021873
Renewal
Page 3

REASONABLE POTENTIAL
ANALYSIS
Rodriguez
Prepared by: Teresa
Facility Name =
Town of Mayodan
NPDES # =
NC0021673
Ow (MGD) _
_
Ow (cis) =
7O10s (cols).
75
--
. ---- -- -----
IWC (%) =
5.84
_ -
Receiving stream
Classification
Mayo River
C
Chronic CCC w/s7O10 dil.
Acute CMC wino dil.
Frequency o1 Detection
Parameter
FINAL RESULTS, ug/I
FINAL RESULTS, ug/I
#Samples
8 Detects
Arsenic
Max. Pred Cw
0.0
Allowable Cw
Cyanide
Max. Pred Cw
856.5
360
0
0
_ —
__
18.2
Allowable Cw
Cadmium
Max. Pred Cw
85.6
_ _
4.1
22
57
6
Allowable Cw
34.3
15
113
4
Chromium
0.0
856.5
256 0
_
Max. Pred Cw
Allowable Cw
Copper
Max. Pred Cw
1022
0
0
Allowable Cw
Lead
Max. Pred Cw
119 9
6.4
428.2
7.3
50
50
Allowable Cw
33.8
51
6
Nickel
0.0
Max. Pred Cw
Allowable Cw
1507.4
261
0
0
,Silver (A.L')-
Max. Pred Cw
0.0
Allowable Cw
Zinc (AL)
Max. Pred Cw
1.0
1.2
0
0
_
300 0
_ 856.5
0.21
_
Allowable Cw
Mercury
Max. Pred Cw
67
46
41
Allowable Cw
0.206
NA
111
1
Molybdenum
Max. Pred Cw
0.0
Allowable Cw
NA
NA
0
0
Selenium
Max. Pred Cw
0.0
20
Allowable Cw
65.6
0
0
Fluoride
Max. Pred Cw
0.0
Allowable Cw
30832.3
NA
0
0
Chloride(A.L)
Max. Pred Cw
0.0
Allowable Cw
3939677.4
860,000
0
0
MBAS
Max. Pred Cw
0.0
Allowable Cw
8564.516 1
0
0
-detects
Modified Dot]: Use 0.5 Detection Limit for non
1,
1

0.336
0.553
'
Parameter =
_
Parameter=
Cyanide
Cadmium
Parameter=
Co. • =r
Standard =
Dataset=
--- - --r
Vlodtied Data
5
5
5
pgll
,_
Standard =
2 pgll
_
Standard =
7 rrgtl
-
<
LESS
LESST
Dataset=
DMR
Dataset=
1
Actual data
RESULTS
Modified Data
< ! Actual
LEssj
LESST
data
RESULTS
AodifiedData < Actual data
RESULTS
10
Std Dev.
1.5807425
0.5
1
Std Dev.
Mean
24.
Std Dev.
21.3004
Mean
5.2982456
0.5
- -
27.
Mean
26.26
s
C.V.
0.2983521
0.5
LESST
C.V.
__
0.608
23
C.V.
0.81113
`_
__-
-
----. - _ -
d.LESST
LESST
LESST
Sampl@#
57
0.5
LESST
---•Sample#
Mult Factor =
-
--- 113
10.
Sampl@#
50
_
0.5
LESST
3.
Mult Factor =
1.3
0.5
LESST
1.380
33.
Mull Factor =
2
_
S.
5.
5.
LESST
LESST
LESST
Max Value
14
pg/I
0.5
LESST
Max Value
3.000
pall
zr.
Max. Value
128
/4/1
-
Max Pred C
18.2
pgll
a.
!
Max Pred Cw
4.140
pg/l
�r
Max. Pred Cw
256
pgll
__ _
Allowable Cw
85.6
pg/I
a.
I
4Atlowable
Cw
34.3
pg/1
25
Allowable Cw
119.9
pgll
5.
5.
LESST
LESST
0.5
LESST
LESST
1e.
0.5
1
-.--
^---
22
-- - v
5.
LESST
0.5
LESST
---,
19.
5.
5.
LESST
LESST
---
0.5
LESST
20.
0.5
LESST
21.
5.
HOLD
0.5
LESST
-
_
5.HOUO
5,
_ -
LESST
0.5
LESST
0.5
LESST
20.
--
-
5.
LESST
0.5
LESST
1
•. --
- _ - - --
5.
HOUO
0.5
LESsr
5.
HOLD
0.5
LEssr
-
�
5.
LESST
0.5
LESST
10.
"
5
LESST
I.
1
I
u.
-
0.5
LEssr
te.
�- l-- --
5
LESST
0.5
LESST
_--
--._
1
5
LESST
0.5
LESST
11
'--- - --- 5.
S.LESST
1
0.5
LESST
I
0.5
LESST
0.5
LESST
_
_
_
�1
_
L
25
5
LESST
0.5
LESST
-
-
-- - -
----
r
--- ---
--.---.-.--
-- -
- - -
-1
- - - -
-.
--
--
----.
i
37,
,�
----- -
5
LESST --
0.5
LESST
,2.
_ _--_ 5
LESST
0.5
LESST
r
_ 5
LESST
0.5
LESST
-
l
si.
5
LESST
0.5
LESST
-
5
5
5
LESST
LESST
LESST
I
_
-
--- -
-- - --
- -
-
- - -
--
- --
-
-
} -
1
1
f
j -*
L
44.
0.5
LESST
107.
0.5
LESST
-- -- ---
5
5
- 1
1.
42.
_--
0.5
LESST
1
1 -~
1
,
-
•
t9.
0.5
LESST
19.
5
LESST
0.5
LESST
25.
---. -_-- SLESST
S
- -- ----
LESST
I
_ - ---�,
0.5
LESST
22
--^
0.5
LESST
0.5
LESST
0.5
LESST
-
5
_
LESST
0.5
LESST
1
----
----- 5
5
- - - - 5
LESST
LESST
O.S,LEssr
I-
0.5 LESST
--
-
Y
L
!
1
1-
t
}
q
� -
+
�
_te.
u.•
-
-
0.5
LESST
y
0.5
LESST
_ __
S,LEssT
5
5
5!LEsst
LESST
LESST
_
0.5
LESST
- to.
-
0.5
LESST
13.
0.5
LESST
3.
,
0.5
LESSTze.
5iLEs3T
SiLEssT
-- - -
5iLEssr
S.;
5,LESST
�- - - -
5'LESST
`-- - -.
-- -.
-
1
0.5
LEss1
1e-
0.5
LESS`
-
----
0.5
LESST
9-
19.
2..
20-
0.5
LESST
---
--
--
. -1
0.5
LEssT
--
_
ImoI- __ __-I
-1-
0.5
LESST
0.5
-__-_. _.-__-•
0.5
LESST
-•
ES
LOST
,-
____ .-�-
0.5
LESST
0.5
LESST
-.
-
-
- -
LESST
• -
0.5
•- -- --
0.5
LESST
0.5
LESST
....
0.5
LESST
0.5
Los,
0.5
0.5
LESST
LESST
_--
1 -
-
0.5
LESST
-
-
1
0.5
LESST
-._-
-
- -
0.5
LESST
-j
1
-
-
LESST
•0.5
0.5
LESST
I
-
0.5
LESST
. --
0.5
LESST

uom=
0.5
LMT
_
--
!
uau=,
".5m=,
ou"a=
uaLESS,
0.»LEssT
luo"ESS,
ua"=,
_
l
|
0.5
LESST
ooLU=
ou`ES=
oaLE=,
.
oa"=,
oaLESS,
oa"US,
uoLES=
uoLe=
uo`ESST
=LMT
uo`E=
|
uu"=,
--
oo""=
.
uo"ESS,
.
uuu=,
oa"ESS,
oaLM=
O.S
LUST
msLES=
n.5uw=
|
uo"=,
|
ooLEssT
0.6
LESST

a
Parameter- Lead I
Standard = 251pg/1
Dataset= DMR
MadtiedDatai < ua1 data RESULTS _
1 LEssi'1 2 Std Dev. 0.681
1 LESST Mean y 1.235
1 LESST C.V. 0.551
-.--_ 1 LESST
1 LESST
2. 1 MO Factor =
1 LESST ~Max. Value
1 LEssr 'Max. Pred Cw
1 LESST IAIlowable Cw
Sample# 51
1 LESST
LESST
1
LESST
LESST
LESST
LESST
LESST
LESST
LESST
LESST
3.
LESST
LESST
LESST
`
2.
1 •
Parameter =
Standard =
Dataset=
Zinc(A.L.)
50 yg/1
4.000 4/1
6.400 prgl1
428.226 lrg/1
ModitledData
151.
134.
149.
166.
190.
140.
79.
200.
Actual data
F
; Parameter= Mercury
Standard = 0.0121141
Dataset= DMR
RESULTS i ModitiedData < Actual data RESULTS
Std Dev. 42.9491 0.1 LESST Std Dev. 0.009
Mean 95.304 0.1 LESST Mean 0.101
C.V. 0.451 1 0.1 LESST C.V. 0.094
Sample# 46 1 0.1 LESST Sari ple# 111
Mutt Factor =
Max. Value
Max Pred Cw
1.5001
200.00011rg11
300.000IIrg/1
69.
77.
Allowable Cw
856.452
75.
71
75,
70
33.
60.
E0.
r
60
110
70
50
90.
80.
50.
22.
LESST
1 LESST
1 LESST
1 LESSTT
1 LESST
1 LESST
1 LESST
LESST
11LESST
4.n
1ILESST
11LESST
1 LESST
1 LESST
1 11.-ESST
1 LESST
I
1 LESST
ti -
1 LESST
1 LESST
LESST
1 (((LESST
1 LESST
1 1LESST
1 LESST
2-I
1 LESST
•
1 LESST
1.
120.
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
1- _-_. _0_.1 LESST
0,1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
0.1 LESST
•-- - - ---- 0.1 LESST
0.1 LESST
0.1 LESST
---- 0.1 LESST
0.1 LESST
LESST
190.
133.
70,
143.
170.
70.
90.
70.
50
120.
70
90
110.
60.
70.
LESST
LESST
92
LESST
{
90.
100-
50.
-1
0.1 LESST
0.1 LESST 1
0.11LESST
21
0.1 !LEST__....
1
-.
0.11LESST
0.1 LESST
0.1 LESST
0.1,LESST
0.1 ILESST
0.11LESST •-
O.1iLESST
O.1 LESST
0.1 LESST
0.1+LESST
0.1 LESST
0.1•LESST
0.1 LESST
0.11LESST
0. 1 LESST
O.1i`EssT
0.1 LESST
0.1 LESST
0.1 LESST •-
0.1 LESST
0.1 LESST
0.1 LESST
0.1 ;LESST
~
0.1 LESST
0.1 LESST i
I
0.1,;LESST
0.1 LESST
0.1 LESST
0.1}LESST
0.1,LESST
0.1 LESST +
0.1 LESST
0.1 LESST
0.1 LESST
O.1 LESST
O.1 LESST
i
0.1 LESST
0.1 LESST
0.11LESST
0.1LESST
0.1;LESST
0.1 LESST
0. 1 ;LESST'
O.1;LESST -
0.1ILESST
0.1ILESST
0.1ILEa5T_1,
0.1'LESST
Mutt Factor = 1.060
Max. Value 0.200
Max. Pred Cw 0.212
Allowable Cw 0.206
1

0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
Lessr
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
Lessr
0.1
LESST
_
0.1
LESST
0.1
Lessr
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
• 0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESS?
0.1
LESST
0.2

REASONABLE POTENTIAL ANALYSIS
Prepared by: Teresa
Facility Name =
Rodriguez
-
7
Town of Ma • •an
I
NPDES N =
NC002187
Ow (MOD).
Ow (cis) =
;..E
7O10s (c!s)=
IWC(%)_
75
-...
'
Receiving stream
Mayo Rive
Classification
C
Parameter
C
Chronic
FINAL
CCC w/s7Q10 dil.
Acute
CMC wino dil.
RESULTS, ugll
Frequency of
flSamples
Detection
0 Detects
RESULTS, ug/I
FINAL
Arsenic
Max Pred Cw
0.0
Allowable Cw
587.6
360
0
0
Cyanide
Max Pred Cw
18.2
Allowable Cw
58.8
22
57
6
Cadmium
Max Pred Cw
4.1
Allowable Cw
23.5
15
113
4
Chromium
Max. Pred Cw
0.0
Allowable Cw
587.6
1022
0
0
Copper
Max Pred Cw
256.0
Allowable Cw
82.3
7.3
50
50
Lead
6.4
Max. Pred Cw
Allowable Cw
293.8
33.8
T
51 6
Nickel
Max Pred Cw
0.0
-
Allowable Cw
1034.2
261
0
0
Silver (A.L.)
Max. Pred Cw
Allowable Cw
0.0
0.7
1.2
0
0
Zinc (A.L.)
Max. Pred Cw
300.0
Allowable Cw
587.6
67
46
41
Mercury
_
Max Pred Cw
0.21
Allowable Cw
0.141
NA
111
1
Molybdenum
Max. Pred Cw
0.0
Allowable Cw
NA
NA
0
0
Selenium
Max. Pred Cw
0.0
Allowable Cw
58.8
20
0
0
Fluoride
i
Max. Pred Cw
0.0
Allowable Cw
21154.8
NA
0
0
Chloride(A.L)
Max Pred Cw
0.0
Allowable Cw
2703118.3
860,000
0
0
MBAS
Max. Pred Cw
0.0
Allowable Cw
5876.344
0
0
Modified Data: Use 0.5 Detection Limit for non -detects

Parameter =
_ _
-
Parameter=
T
Cyanide
(
Cadmium
Parameter =
Cop r
Parameter =
Lead
,
Standard a
,pg/l
Standard =
2lpg11
Standard =
7 rrgli
I
Standard a
251pgl1
•Dataset= Dataseta IDMA
Dataseta
Dataset=
DMA
Modified Data
Actual data
RESULTS
Modified Data
<
Actual data
RESULTS
ModiliedData
< Actual data
RESULTS
ModitiedData
<
4ctual data
RESULTS
E
~
5
LEssi
10
Std Dev.
1.5807425
0.5
LESS'
1
Std Dev.
0.336
24.
Std Dev.
21.3004
1
LESST
2
Std Dev.
0.681
5
LESST
Mean
5.2982456
0.5
0.5
LESST
Mean
0.553
27.
Mean
26.26
1
LEssT
Mean
1.235
s
C.V.
0.2983521
---T
LESST
C.V.
0.60E
23.
C.V.
0.81113
ttt
1
LEsss
C.V.
0.551
5.
LESST
Sample#
57
0.5
LEssT
Sample#
113
is.
Sample#
50
1
LEssT
Sample#
51
5.
LESST
0.5
LESST
].
1
LESST
_
5.
LESST
Mult Factor =
1.3
0.5
LESST
Mult Factor =
1.380
31.
Mutt Factor =
2
2.�
Mult Factor=
1.600
5.
LEssT
Max. Value
14
pg/1
0.5
LESST
Max. Value
3.000
pg/1
27.
Max. Value
128
pgli
1
LEssT
Max. Value
4.000
pgli
5.
LESST
Max. Pred Cv,
18.2
pgll.
].
Max. Pred Cw
4.140
p�/I
17.
Max. Pred Cw
256
pg/i
1
LEssT
Max. Pred Cw
6.400
41
5.
LESST
Allowable Cw
58.8
pg/1
s.
Allowable Cw
23.5
pgll
25.
Allowable Cw
82.3
pgll
1
LEssT
Allowable Cw
293.817
pg/1
5.
LESST
0.5
LESST
10.
1
LESST
5.
LESST
0.5
LESST
22.
1
i.EssT
5.
LESST
0.5
LESST
19.
5.
LESST
0.5
LESST
20.
1
LESST
---1-^
_
-
SJLESST
0.5
LESST
21..
1
LESST
-
5.
- - S.�HOLID
HOLID
-
0.5
LESST
_
0.5
LESST
_
S LESST
0.5
LESST
20.
- -
-
- -
LESST
- ,5_
5,
LESST
-
---
--- - •
0.5
LESST
34.
_
1
LESST
HOLID�
- -- -
- -- -
0.5
0.51LESST
LESST
•
______
1I
-
-
[
5.
HOLID --
l6ssr
- -
-
-
_
- - - --
0.5 LESST
--
1a.,
- - --
-•-
1
LESST
_SILESST
14.
1.
-r
1a.
-
11LESST
--
-
5
_
5
1Lossr
l I
'
to.
-^_W
1
LESST
LESST
- -- --
1
0.51LESST
17.E
1
LESST
-
SLESST
O.5ILESST
-
15
12.
•---- -----
]
-----•-..-----'
-
---
13.
S.
S
1
0.5
LESST
1
LESST
LESST
- - - ---1
•
jS.
0.5
LESST
20.
1
LESST
0.5
LESST
1
44.
1
LESST
--'----,
j
_ _
LESST
- ---_ti
0.5 LESST
10.
2.
--�
LESST
5 LESST
L--v_-_i-
0.5 'LESST
r.
1
LESST
- -- 5
LESST
0.5
LESST
42.
1
LESST
5
LESST
- - -----
0.5
LESST
43.
1
LESST
51L90S7
f
_ _ -
0.5
LESST
1
---._
LESST
_
+ i
]]
11LESST
1�
------
5
---
I 0.5kLESST
-
1 ILESST
_ice
5
LESST
i
44.
1
LESST
- -- -_--
5
LESST
O.5
Ka.
1
LESST
_
5
LESST
'
0.5
LOST
1
LESST
t
1.
42.
5
LESST
0.5
LESST
10.
4.
_
5
LESST
0.5
LESST
19.
1
LESST
_ I
5
LESST
0.5
LESST
n.
1
LESST
1_
5
LESST
0.5
LESST
22.
1
LESST
5
LESST
0.5
LESST
1
LESST
0.5
LESST
1
-
0.5
LESST
20.
i
5
LESST
_
0.5
LESST
123.
1
LESST
5
LESST
-. -
0.5
LESST
!
1
LESST
5
0.5
LESST
10
5
5ILESST
5
5
5
..-._ _ 5
5
LESST
LESST
LESST
LESST
LESST
LESST•
•
0.5
LESST
_
~- T
1
LESST
1
0.5
0.5
0•
LESST
LESST
ST
1
u'
-•
i1
r -
_ _
._
T
-.
10.
12
a.
21.
- -
1
LESST
-_ --
- •
-_, 1
1
(LESST
LESST
_1.
O.5 LESST
0.5 LESST
0.5 LESST
0.5!LESST
-_
-_-
LESST
'---
1S.
9.
19.1--
-
11lESST
1
LESST
0.5ILESST
0.51LESST
I
�, _-_,--
5 LESST
1
LESST
! 1

Si i
{
0.5 LESST 24.. I I I I I 2.1
51LEssr
_0.5
0.5
0.5
LESST
LESST
{I( 20.1 I ij 1 IjLESST
1111------
51LEssT
r
I2
t 1 LESs1I
-�-- i I
LESST l I
1-1
0.5,LEssr
.
---------
:
+
i
0.51LESST
0.5
0.5
LESST
j
I
._
.-
�
~
LESST - -----
y
0.5ILESST
1 I i 0.5
LESST
I i 0.5
LESST
i I 0.5
LESST
I I
0.5
LESST
0.5
LESST
1 I
0.5
LESST
I
0.5
LESST
1
0.5
LEssr
0.5
LEssr
0.5
LEssr
1111
0.5
LEssr
0.5
LESST
0.5
LESST
-
0.5
LESST
0.5
LESST
0.5
LESST
0.5
LESST
0.5
LESST
0.5
LESST
0.5
LESST
-
0.5
LESST
0.5
LESST
-
-
-- --
0.5
LESST
-___
0.5
LEssr
,
- 0.5
�0.5
LEssr
.- -?
LESST
0.5
__ 0,5.LESST
0.5
LESST ---1-
LESST
0.5
LESST
0.5
LESST
--
-- ---------. 0.5
LESST
0.5
LESST
0.5
LEssr
0.5
LESST
0.5
LESST
0.5
LESST
---���-
0.5
LEssr
0.5
LEssr
0.5
0.5
0.5
LEssr
0.5
LESST
t
0.5
LESST
0.5
LESST
I0.5
LESST
0.5
LESST

i
Parameter =
Zinc A.L)
Parameter
Mercury
Standard =
50jpg11
Standard =
0.012
well
Dataset=
Actual
�_--'Std
' 1
Dataset=
DMR
i
ModifiedData I < I
ts1
134.
. - - '.a '
tee.
- --- - 150
t.0, I
79
200.1
data
i
1C.V.
I RESULTS
I
42.949
95.304
0.451
_
ModifiedData < , Actual
data
-v-iStd
RESULTS_
Dev.
0.1 ism. .
Dev. .
i Mean
0.009
Mean
0.1 LEssT ,
0.101,
C.V. y
� 0.1
LESST I
C.V. � 0-094��
- ------
.
Sa !est 46
0.1
LESST
{Sample# t i t
0.1
LESST
j Mult Factor = 1.500
0.1
LESST
Mull Factor = !.-1.060
i Max. Value ; 200.000
pgA ! 0.1
LEssT i
Max. Value 0.200
Wgll
WI
pgli
!Max. Pred Cw } 300.000
pgll '
0.1
LESST
Max. Pred Cw
0.212
as. I-
Cw 587.634110
0.1
LESST
Allowable Cw
0.141
77.
fAliowable
0.1
LESST
79.
V ----- 75.
t
0.1
LESST
0.1
LESST
j�
71. 1
0.1
LESST
75.'
i
0.1
LESST
70.
0.1
LESST
33.
I
0.1
LESST
SO.
0.1
LESST
60.
1
0.1
LESST
S0.
1
0.1
LESST
110.
I
0.1
LESST
70.
I
0.1
LESST
60.
(11
0.1
LESST
S0.
1
0.1
LESST
S0.
I
0.1
LESST
so.
1
0.1
LESST
221
I
0.1
„LESST
LESST
0.1LESST
120.
I
.2
LESST
5O
0.1
LESST
1
_-_
190-
1�
----- - 70:1
140.
170.
- -- 70.1
90
70.
50'
120.
- ---- 70.�
90
-
- t-
----,
1
- --
..--- ---
- -t--- --
- ;-- -- -
_-.-
_
--�-
0.1
LESST
---
' --'-
-- .
--- -
---- 1
'
0.1 LESST
0.1 LESST
•-
- �--
1
-
0.1
0.1
_ 0.1
0.1
LESST
LESST
LESST
LESST
-
-----
~ -
-
--
1 -
- - --
O,1
LESST
1j
-
110. i
0.1
LESST
T
SO.;
!
0.1
LESST
70.j ;
0.1
LESST
ILESST
0.1
LESST
Ij
LESST
0.1
LESST
62-
I
0.1
LESST
LESST
0.1
LESST
90.
0.l
LESST
100.
0.1
LESST
50.
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
0.1
LESST
..--_
__.
0.1
LESST
0.1
LESST
1
0.1
LESST
0.1
LESST
♦

m"=,
u1"=,
/
u1"M,
u1"=,
u/u=,
u/=='
|
|
u/`ESST
l
!
u/"=,
u/"M,
l
u/"M
/
mu==
m"ew
�
u/"=,
' ---
u/"°=
—
m=M
u/=OST
0.1
LESST
u/LESS,/
m"=,
,
u/==
m"=,
u/==
u/"=,
.
o1==
u/==
o.1=SS,
«'1"=`
u1LESS,
u1"=,
0.1
LESST
u1"m
u.1"M
u1==
u1LESS,
u1"=,
u1==,
u1LESS,
u1LESS,
u/LESS,
0,1
LESS`
u1/"=,
u1
LESS,
'
0,1
LESS,
0.1LESS,
~
u`LEU,/
mLES=
l
0.1"ES=
--�
mo=SST
�
m"M,
m==
u.=ST
u1uSS,
'
u/==

NPDES/Non-Discharge Permitting Unit Pretreatment Information Request Form
NPDES OR NONDISCHARGE PERMITTING UNIT COMPLETES THIS PART:
Date of Request , l,1cr/o
Facility
Vln XZ/) o - +'n
Permit #
(/t-GOO 7 1 S 7-3
Region
ilk 5 (Lb
Requestor
AA (A02
S •
Pretreatment A_D Towns- Keyes McGee (ext. 580)
Contact E-L Towns- Deborah Gore ext 593)
M- owns- Dana Folley (ex .
-Z Towns- Steve Amigone (ext 592)
B 0,c k. -f-Orn 1Lc6 V j o'3
fro✓vV lPcv )
PRETREATMENT UNIT COMPLETES THIS PART:
Status of Pretreatment Program (circle all that apply)
1) the facility has no SIU's and does have a Division approved Pretreatment Program that is INACTIV
2) the facility has no SIU's and does not have a Division a�proved Pretreatment Program
c_rd
(3) the facility has.(o is deueleping) a Pretreatment Programit-
,
3a) is Full Program with LTMP_,-- or is odified Program with STMP
a
4) the facility MUST develop a Pretreatment Program - Full Modified
5) additional conditions regarding Pretreatment attached or listed below
I
n G
Flow Permitted Actual
5- l
% Industrial 1, 69
STMP time frame:
most recent
T,
0.'1
rI D
% Domestic l aoi Lu��rk5
next cycle
��� NAi( .CIS
A_
L
(5)
T
MP
Pollutant
Check List
POC due to
NPDES/Non-
Discharge
Permit Limit
Required
by EPA'
Required by
503 Sludge**
POC due to SIU`"
Site specific POC (Provide Explanation)""
STMP V
Frequency
effluent
at
LTM
Fre
etfl
ency at
nt
V'BOD
✓
v
4
Q
M
V
TSS
✓
4
Q
M
NH3
✓
✓
4
Q
M
V
Arsenic
v
Y[
t�
4
Q
M
d
Cadmium
t/
v
✓
4
Q
M
1
Chromium
4
✓
4
Q
i
Copper
.1
V
✓
4
Q
V
Cyanide
✓
4
Q
M
)
Lead
1
v
v
4
Q
M
Mercury
✓
✓
✓
4
Q
M
t/
Molybdenum
✓
4
Q
M
J
Nickel
4
✓
,/
4
Q
iM
✓
ilver
✓
4
Q
IM
✓Selenium
V
4
Q1M
4
Zinc
4
t/
V
4
Q
M
1
QiwsPhonAS
4
Q
M
4
Q
M
4
Q
M
4
Q►M
4
Q M
4
Q i M
'Always in the LTMP
"Only in the LTMP if the POTW land appl es sludge v
"' Only in LTMP while the SIU is connected to the POTW
"" Only in LTMP when the pollutant is a specific concem to the POTW (ex -Chlorides for a POTW who accepts Textile waste)
Cl.,. Quarterly
M=Monthly I
Comments: V`GC f^_(U re ,A,‘,c, Je i-n�� L,t)ct.4 .
ago S4-nkeol l(e rs Si t-s afro hl.cttre /c�,,.-�!'fCak^ A-s
j- pay. /.t �_c fie r),-t 5,/1).--,- /rp) •�n- Q ( so,
/„
version 8/23/00 rJ 1 V A 4 (2' Gtct s .�i r (- s Pt) v -' i-V &cl Yt2i'vi t (°� Nf O LA 0., c) q
L vkohceci! P doe tucrt ra_ u try
f3 a -t- TSS - r� s S �t ,�n t'h l�' -f� S 15 ea—✓-C
NPDES_Pretreatment.request.form. 10613 — /n�
`
Revised: August 4, 2000 y GtJ ( V,J e r"/ K Pd f h jib W p.e
6 'leo

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
August 16, 2(
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Marshall WWTP Perm 24hr Wise lim: 90% 1998 — Pass — Pass — — Pass — Pass
NC0021733/001 Begin:6/1/2002 Frequency: Q + Feb May Aug Nov + NonComp:Single 1999 — Pass — Pass Pau Fail
County: Madison Region: ARO Subbasin: FRB04 2000 — Pass -- -- Pass -- Pass Pass
PF: 0.40 Special 2001 — Pass Pass Pass -- --- Pass
7Q10: 535 1WC(%):0.12 Order: 2002 — Pass — — Pass —
B1
Mayodan WWTP Perm chr lim: 6%ifpf>1.25 1998 — Pass •— Late Pau Pass ••- Pass
NC0021873.'001 Regin:3/1/I997 Frequency: Q P/F + Mar Jun Sep Dec + NonComp:Single 1999 — — Pass -- -- Bt — Pass -- --- Late
County: Rockingham Region: WSRO Subbasin: ROA02 2000 Pass — Late Fail 8.5 17 — Pau --- -- Pass
IT: 3.0 Special 2001 — Pass — -- Pass — Pau -- Pass
7Q10: 75 IWC(%):6 Order: 2002 — — Pass Pass
MB Industries-001 Perm 24hr p/f ac lim: 90% Rhd
NC0000311/001 Bcgin:5/1/2001 Frequency: Q + Mar Jun Sep Dec
County: Transylvania Region: ARO Subbasin: FRBOI
PF: 0.030 Special
7Q10: 27.9 I W C(%):0.17 Order:
+ NonComp:Singlc
Y 1998 — — Pass -- Pass — — Pass — — Pass
1999 — — Pass — Pass Pass — — NR/Pass
2000 — Pass -- Pass — •— NR/Pass — Pass
2001 — — Pass -- Pass -- NR/Pass — NRPass
2002 — — NR/Pass -- -- Pass
MB Industries-003 Pcrm chr lim: 0.55% 1998 — — — — -- —
NC0000311/003 Bcgin:5/1/2001 Frequency: Q Mar Jun Sep Dec + NonComp:Single 1999 — — — —
County: Transylvania Region: ARO Subbasin: FBBOI 2000 — — — — — —
PF: 0.10 Special 2001 — — — — R
7QI0: 27.9 IWC(%):0.55 Order: 2002 — — — — bi
Mebane WWTP Perm chr lim: 90%
NC0021474/001 Bcgin:9/1/2002 Frequency: Q Jan Apr Jul Oct
County: Alamance Region: WSRO Subbasin: CPF02
PF: 2.5 Special
7Q10: 0.0 IWC(%):I 00 Order:
+ NonComp:Single
Y 1998 Pass — — Pau — — Pass — Pass
1999 Pass — — Pass — — Pass — Pass
2000 Pass — — Pass — — Pass -- Pass
2001 Pass — — Pass Pass Pass
2002 Pass — — Pau — Pass
81111er Brewing Co. Perm chr lim: 2.1 % 1998 — Pass — — Pass -- — Pass — Pass
NC0029980/001 Bcgin:3/1/1997 Frequency: Q P/F + Feb May Aug Nov + NonComp:Singlc 1999 — Pass — — Pass Pass — NR/Pass
County: Rockingham Region: WSRO Subbasrn: ROA03 2000 — Pass — — Pass 81 Pass Pass
PF: 5.2 Spinal 2001 — Pass — — Pau — — Pass — —• Pass
7Q10: 313 1WC(/.)2.51 Omer: 2002 -- Pass — — Pau
Mocksvllle WWTP Bear Creek Penn chr lim: 37% Y 1998 -- Pau — — Pass -- Pass —
NC0050903/001 Begin:I/1/2000 Frequency: Q P/F Feb May Aug Nnv a NooConlp:Singlc 1999 — Pass — — Pass -- — Pau
County: Davie Region: WSRO Subbasin: YAD06 2000 — Pass -- — Pass -- -- Pass •-•
PF: 0.25 Spacial 2001 NR Pass -- Pass — -- <10.FM NR
7Q10: 0.65 IWC(%):37 Order: 2002 NRIFail 13.8 <10 <10 <10 >100 86.6
<10,13.6
Pass —
Pau --
NR Pass
13.6 Fail,Pass
Mocksvllle \VWTP Dutchman's Cr. Perm chr dim: 7"/.
NC00214911001 Bcgin:3/1/2001 Frequency: Q Jan Apr Jul Oct
County: Davie Region: WSRO Subbasin: YADO5
PF: 0.68 spinal
7Q10: 15.0 I WC(a/.):6.57 Order:
+ NonComp:Single
Y 1998 NR/Pass — — Pau — — Pass Pass
1999 Pass — — Pass — Pass Pau
2000 Pass -- — Pass — Pass -- Pass
2001 Pass — — Pass — Pass — Pau
2002 Fad >28 9.90 Pau — Pass
Monarch Hosiery Pcrm 24hrp/fse lim: 90% Y 1998 — — Pass — — Pau — Pau -- --- Pass
NC0001210/001 Begin:2/1/1996 Frequency: Q + Mar Jun Sep Dec NonComp:Single 1999 — — Pau — — Pass — - Pass Pass
County: Alamonce Region: WSRO Subbasin: CPF02 2000 — — Pass — Pass — NR/Pau Pass
PF: 0.05 Special 2001 — — Pass — Pass Pass -- Fail
7010: 47.8 1WC(%):0.16 Order: 2002 Fail Pass Pau — Pass
Monroe WWTP Pcrm chr lim: 90% 1998 — — Pau — — Pau — Pau Pass
NC0024333/001 Begin:3/1/2001 Frequency: Q Mar Jun Sep Dec + NonComp:Single 1999 — — Pau — — Pau — — Pau Pau
County: Union Region: MRO Subbasin: YADI4 2000 — — Pass — — Pass — — Pau — Pass
PF: 9.0 Special 2001 — — Pass — — Fad >100 <45 >100(s) — — Pass(s)
7010: 0.43 1WC(%).96.18 Order: 2002 — — Pass(s) — — Pass
Y Pre 1998 Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Letter - Target Frequency = Monitoring frequency: Q- Quarterly; M- Monthly; BM. Bimonthly; SA- Semiannually: A- Annually: OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7QI0 = Receiving stream low flow enterion (efs) += quarterly monitoring increases to munthly upon failure or NR Months that testing must occur - ex. Jan. Apr. Jul, Ott NonConlp = Current Compliance Requirement
PF = Permitted flow (MGD) 1WC% = Instrcam waste concentration P/F = Pass/Fail test AC = Acute CHR — Chronic
Data Notation: f - Fathead Minnow; • - Cenodaphnia sp.: my - Mysid shnnip. ChV - Chronic value; P - Mortality of stated percentage at highest concentration: at - Performed by DWQ Aquatic Tox Unit: bt - Bad test
Reporting Notation: -- = Data not required: NR - Not reported Facility Activity Status: I - Inactive. N - Newly Issucd(To construct); H - Active but not discharging: t-More data available for month in question: • = ORC signature needed
33
a,

722
r ..
Mrs. Debra Cardwell
210 W. Main Street
Mayodan, North Carolina 27027
Dear Mrs. Cardwell:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, Director
Division of Water Quality
September 11, 2002
Subject: NPDES Permit No. NC0024201
Town of Mayodan WWTP
Rockingham County
The Division of Water Quality is reviewing your application for permit renewal and
expansion submitted on November 13, 2001. Additional information is needed to
complete the renewal process. The information requested is part of the requirements of
Form 2A.
The following information was missing from the application:
1. Part B.6 - effluent data for oil & grease and total dissolved solids.
2. Effluent data for pollutants listed in Part D. Expanded Effluent Testing Data.
3. Part E - toxicity test performed with a second specie. For information regarding the
second specie test please call the Aquatic Toxicology Unit at [phone].
Please provide the above information to my attention. Should you have any questions
or if you need any additional information, please feel free to contact me at (919) 733-
5083, extension 595.
Sincerely,
Teresa Rodriguez
NPDES Unit
NPDES files

EMMY
November 7, 2001
reG
let
Hobbs, Upchurch & Associates, P.A. 11/13
Consulting Engineers
300 S.W. Broad Street • Post Office Box 1737 • Southern Pines, NC 28388
Mr. Dave Goodrich, Supervisor
NCDENR Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: Town of Mayodan, Rockingham County
WWTP NPDES Application for Modification
HUA No. MY0001.p
Dear Mr. Goodrich:
Fax: [phone]
Please find enclosed three (3) copies of the Town of Mayodan's NPDES Application for
Modification. The discharge permit request is for the planned upgrade from 3.00 to 4.50
mgd to accommodate the recommendations of the recently approved Western
Rockingham County Regional Wastewater System 201 Facilities Plan. The regional
facility will accept additional wastewater from the Towns of Stoneville and Madison,
thus eliminating their existing discharges. As the majority of the project funding will be
State Revolving Loan from NCDENR Construction Grants and Loans, they have
indicated that they will be issuing the Authorization to Construct.
The application package includes the NPDES Form 2A Application and the following
supporting documentation:
• Speculative Limits Letter Dated March 2, 2000
• WWTP Calculations
• WWTP Flow Schematics
• 201 Facilities Plan Approval Letter and FONSI
• Topographic Map
• Current NPDES Permit
• NCDENR Compliance Inspection Report — September 4, 2001
The previously approved 201 Facilities Plan included the necessary alternatives analysis
for the project. NCDENR Construction Grants and Loans staff noted that the approval
included a review by your staff and would not be a necessary component of this
submittal.
Southern Pines, NC • Telephone [phone] • Fax [phone] • e-mail: [e-mail]
Myrtle Beach • Nags Head • Raleigh • Charlotte

Dave Goodrich
November 7, 2001
Page 2
The proposed WWTP expansion will include revisions and/or upgrades to the mechanical
bar screen, influent pumps, and distribution box, 1.5 mgd aeration basin, 1.5 mgd
clarifier, additional aerobic digestion, sludge loading station, disinfection facilities,
additional emergency generator, metering, electrical and related site work.
In addition to the State Revolving Loan, several grants of varying amounts have been
secured for the proposed regional system. The Economic Development Administration is
providing a grant of $1,000,000. Due to the lengthy process of the 201 Plan approval and
numerous other obstacles associated with a project of this type, EDA has indicated that the project must move toward construction in the next 6-8 months. For this reason, we -
respectfully request your cooperation in expediting the review to allow the Towns to
maintain this very valuable funding source. We hope that the previously approved 201
Plan will eliminate some of your review burden and have been assured that the CG&L
Section staff is available to supply information pertaining to their review and approval of
the project.
Thank you for your assistance and cooperation in the approval of this project. If you
should have any additional questions regarding this project, please do not hesitate to
contact this office.
Sincerely,
HOBBS, UPCHURCH AND ASSOCIATES, P.A.
Bill Lester, Jr., P.
Governmental Division Manager
Cc: Debby Cardwell, Town Manager, Town of Mayodan
Sharon Garner, Town Manager, Town of Madison
Bob Wyatt, Town Administrator, Town of Stoneville

NPDES Application for Permit Modification
for the
TOWN OF MAYODAN
Rockingham County, North Carolina
kl` elm
'' CARots%
:$
S51p 9 'g z•.
SE Al r
17651
Prepared By
11.7•DI
HOBBS, UPCHURCH & ASSOCIATES, P.A.
300 S.W. BROAD STREET
SOUTHERN PINES, NORTH CAROLINA
NOVEMBER 2001

PIM
Hobbs, Upchurch & Associates, P.A.
Consulting Engineers
300 S.W. Broad Street • Post Office Box 1737 • Southern Pines, NC 28388
November 7, 2001
Mr. Dave Goodrich, Supervisor
NCDENR Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: Town of Mayodan, Rockingham County
WWTP NPDES Application for Modification
HUA No. MY0001.p
Dear Mr. Goodrich:
Fax: [phone]
Please find enclosed three (3) copies of the Town of Mayodan's NPDES Application for
Modification. The discharge permit request is for the planned upgrade from 3.00 to 4.50
mgd to accommodate the recommendations of the recently approved Western
Rockingham County Regional Wastewater System 201 Facilities Plan. The regional
facility will accept additional wastewater from the Towns of Stoneville and Madison,
thus eliminating their existing discharges. As the majority of the project funding will be
State Revolving Loan from NCDENR Construction Grants and Loans, they have
indicated that they will be issuing the Authorization to Construct.
The application package includes the NPDES Form 2A Application and the following
supporting documentation:
• Speculative Limits Letter Dated March 2, 2000
• WWTP Calculations
• WWTP Flow Schematics
• 201 Facilities Plan Approval Letter and FONSI
• Topographic Map
• Current NPDES Permit
• NCDENR Compliance Inspection Report — September 4, 2001
The previously approved 201 Facilities Plan included the necessary alternatives analysis
for the project. NCDENR Construction Grants and Loans staff noted that the approval
included a review by your staff and would not be a necessary component of this
submittal.
Southern Pines, NC • Telephone [phone] • Fax [phone] • e-mail: [e-mail]
Myrtle Beach • Nags Head • Raleigh • Charlotte

PRI
FM1
Dave Goodrich
November 7, 2001
r Page 2
The proposed WWTP expansion will include revisions and/or upgrades to the mechanical
bar screen, influent pumps, and distribution box, 1.5 mgd aeration basin, 1.5 mgd
clarifier, additional aerobic digestion, sludge loading station, disinfection facilities,
additional emergency generator, metering, electrical and related site work.
fari
In addition to the State Revolving Loan, several grants of varying amounts have been
secured for the proposed regional system. The Economic Development Administration is
providing a grant of $1,000,000. Due to the lengthy process of the 201 Plan approval and
numerous other obstacles associated with a project of this type, EDA has indicated that
the project must move toward construction in the next 6-8 months. For this reason, we
respectfully request your cooperation in expediting the review to allow the Towns to
maintain this very valuable funding source. We hope that the previously approved 201
Plan will eliminate some of your review burden and have been assured that the CG&L
Section staff is available to supply information pertaining to their review and approval of
the project.
Thank you for your assistance and cooperation in the approval of this project. If you
should have any additional questions regarding this project, please do not hesitate to
contact this office.
Sincerely,
HOBBS, UPCHURCH AND ASSOCIATES, P.A.
PRI
a.; Bill Lester, Jr., P.
Governmental Division Manager
Cc: Debby Cardwell, Town Manager, Town of Mayodan
Sharon Garner, Town Manager, Town of Madison
Bob Wyatt, Town Administrator, Town of Stoneville

NPDES Application for Modification

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
FORM
2A NPDES FORM 2A APPLICATION OVERVIEW
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
Additional Application Information for Applicants with a Design Flow z 0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through 8.6.
Certification. All applicants must complete Part C (Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D (Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to provide the information.
Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users (Sills) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations (CFR) 403.6 and
40 CFR Chapter I, Subchapter N (see instructions); and
2. Any other industrial user that:
a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works (with certain
exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant; or
c. Is designated as an SIU by the control authority.
. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G (Combined Sewer
Systems).
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 1 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
BASICAPPLICATION IN FORMATION° : ; .
-._„ •. F..:. r... :.,,"N . _.� ..; �.., .t_:.� ;.. ;'�,=%-'ie.j^' ..._ :�1 ...... .. :Sid.. _ :Sr & :� ..
PART A BASIeAPPLICAYION � FORMI TIOt IMF( tF"AC: APPlii.e NTS , , . "
All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet.
A.1. Facility Information.
Facility Name Town of Mayodan WWTP
Mailing Address 210 W. Main Street
Mayodan, North Carolina 27027
Contact Person Debra Cardwell
Title Town Manager
Telephone Number [phone]
Facility Address 293 Cardwell Road
(not P.O. Box) Mayodan, North Carolina 27027
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name Town of Mayodan WWTP
Mailing Address 210 W. Main Street
Mayodan, North Carolina 27027
Contact Person Debra Cardwell
Title Town Manager
Telephone Number [phone]
Is the applicant the owner or operator (or both) of the treatment works?
® owner 0 operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
0 facility IN applicant
A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state -issued permits).
NPDES NC0021873 PSD
UIC Other
RCRA Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each
entity and, if known, provide information on the type of collection system (combined vs. separate) and its ownership (municipal, private, etc.).
Name Population Served Type of Collection System Ownership
Mayodan (Existing) 2505 Separate Municipal
Stoneville (Proposed) 1118 Separate Municipal
Madison (Proposed) 2423 Separate Municipal
Total population served 6046
r
10‘)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 2 of 42

aNa
MEI
AM
PM
PM
MI
PM
MA
MR
WI
MR
Fr
MEI
MI
MI
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
A.S. Indian Country.
a. Is the treatment works located in Indian Country?
O Yes ® No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows through)
Indian Country?
O Yes ® No
A.6. Flow. Indicate the design flow rate of the treatment plant (i.e., the wastewater flow rate that the plant was built to handle). Also provide the average
daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period with the 12th
month of "this year" occurring no more than three months prior to this application submittal.
a. Design flow rate 4.50 mgd
b. Annual average daily flow rate
Two Years Ago Last Year This Year
1.36 mgd 1.39 1.42
c. Maximum daily flow rate 1.98 mgd 2.04 2.09
A.7. Collection System. Indicate the type(s) of collection system(s) used by the treatment plant. Check all that apply. Also estimate the percent
contribution (by miles) of each.
® Separate sanitary sewer 100 %
0 Combined storm and sanitary sewer yo
A.B. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.?
® Yes D No
If yes, list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent 1 (One)
ii. Discharges of untreated or partially treated effluent None
iii. Combined sewer overflow points None
iv. Constructed emergency overflows (prior to the headworks) None
v. Other
b. Does the treatment works discharge effluent to basins, ponds, or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? 0 Yes
If yes, provide the following for each surface impoundment:
Location: N/A
® No
Annual average daily volume discharge to surface impoundment(s)
Is discharge
0 continuous or 0 intermittent?
N/A mgd
c. Does the treatment works land -apply treated wastewater? ® Yes 0 No
If yes, provide the following for each land application site:
Location: N/A
Number of acres:
Annual average daily volume applied to site: mgd
Is land application
0 continuous or ® intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
O Yes IN No
a. EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 3 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works (e.g.,
tank truck, pipe).
NIA
If transport is by a party other than the applicant, provide:
Transporter Name
Mailing Address
Contact Person
Title
Telephone Number ( )
For each treatment works that receives this discharge, provide the following:
Name
Mailing Address
Contact Person
Title
Telephone Number ( )
If known, provide the NPDES permit number of the treatment works that receives this discharge
Provide the average daily flow rate from the treatment works into the receiving facility. mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8. through A.8.d above (e.g., underground percolation, well injection): 0 Yes N No
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) if applicable):
Annual daily volume disposed by this method:
Is disposal through this method
0 continuous or 0 intermittent?
r
r'
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 4 of 42 7

rL1
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
WASTEWATER DISCHARGES:
If you answered "Yes" to question A.8.a, complete questions A.9 through A.12 once for each outfall (including bypass points) through
which effluent is discharged. Do not include information on combined sewer overflows in this section. If you answered "No" to question
A.8.a, go to Part B, "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number 001 (One)
b. Location Town of Mayodan 27027
(City or town, if applicable)
Rockingham County
(Zip Code)
North Carolina
(County) (State)
36° 24' 25" 79° 57' 56"
(Latitude) (Longitude)
c. Distance from shore (if applicable) ft.
d. Depth below surface (if applicable) ft.
e. Average daily flow rate 3.0 (Existing) 4.5 (Proposed) mgd
f. Does this outfall have either an intermittent or a periodic discharge? 0 Yes ® No (go to A.9.g.)
If yes, provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months in which discharge occurs:
g. Is outfall equipped with a diffuser? 0 Yes ® No
A.10. Description of Receiving Waters.
a. Name of receiving water Mayo River
b. Name of watershed (if known)
United States Soil Conservation Service 14-digit watershed code (if known):
c. Name of State Management/River Basin (if known): Roanoke River
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute cfs chronic cfs
e. Total hardness of receiving stream at critical low flow (if applicable): mg/I of CaCO3
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 5 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
❑ Primary N Secondary
❑ Advanced ❑ Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 95
Design SS removal 90 0/0
Design P removal N/A
Design N removal N/A
Other
c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorination
If disinfection is by chlorination is dechlorination used for this outfall? N Yes 0 No
Does the treatment plant have post aeration? 0 Yes N No
A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is
discharged. Do not include information on combined sewer overflows In this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QAIQC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a
minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart.
Outfall number: 001
PARAMETER
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
Value
Units
Value
Units
Number of Samples
pH (Minimum)
6.0
s.u.
1'1
pH (Maximum)
9.0
s.u.
3'
Flow Rate
3.00
mgd
1.426
mgd
Temperature (Winter)
N/A
° C
14.5
° C
Temperature (Summer)
N/A
° C
23.5
° C
' For pH please report a minimum and a maximum daily value
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Number
of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
DEMAND (Report one)
BOD5
22.6
mgll
6.8
mg/I
Composite
CBOD5
N/A
FECAL COLIFORM
200
per 100 ml
17.1
per 100 ml
Grab
TOTAL SUSPENDED SOLIDS (TSS)
30
mg/I
8.6
mg/I
Composite
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 6 of 42

1341
F
r�r
r
raa
Plot
MCI
rant
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
•BASIC:'APPLICATIONrINFORMATION,
�1�r� _
L T� � .1�^ t^%_ '."'TaK'Vt.,:'. ,l1 i ::i Dw .:{:
: " , ONAL i ?L7G�AT�IOti 1NFOR IAA IO 'FOiAPPL1C�/�1
PART�B _A`UDIT �a� ,• ��•s -s �.�� _n �.. ,,..,
-
S� . +.`e 5_:i-' _ !a T' _•
S TH A*bESIdN
_ 5 !_ �a _
�, 6. rt ,,, i,
, - a
;
OW Cik ER THAN OR -
�.-, �z; ,��,..� ,.:.
;. Y . a.,-,.�
,
. i �_.i . � i, D � betel albs.._
e a
QUA,-,i,.b 0. G ,.. a, �9 s Pe, ,,,.. .�
All applicants with a design flow rate a 0.1 mgd must answer questions B.1 through B.6. All others go to Part C (Certification).
B.1. Inflow and Infiltration. Estimate the average number of gallons per day
522,000 gpd (maximum per 201 Plan)
that flow into the treatment works from inflow and/or infiltration.
line annually to delineate areas in need of repairs. Funds
Briefly explain any steps underway or planned to minimize inflow and infiltration.
The Town currently performs camera inspection of the
are budgeted annually to address prioritized needs as included in Capital Improvement Plan.
B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This
map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire
area.)
a. The area surrounding the treatment plant. including all unit processes.
b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which
treated wastewater is discharged from the treatment plant. include outfalls from bypass piping, if applicable.
c. Each well where wastewater from the treatment plant is injected underground.
d. Wells, springs, other surface water bodies, and drinking water wells that are: 1) within % mile of the property boundaries of the treatment
works, and 2) listed in public record or otherwise known to the applicant.
e. Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed.
f. lithe treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rail,
or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored. and/or disposed.
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant, induding all bypass piping and all
backup power sources or redunancy in the system. Also provide a water balance showing all treatment units, including disinfection (e.g.,
chlorination and dechlorination). The water balance must show daily average flow rates at influent and discharge points and approximate daily flow
rates between treatment units. Include a brief narrative description of the diagram.
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor? N Yes 0 No
If yes, list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional
pages if necessary).
Narne: Hydro Management Services
Mailing Address: 2511 Neudorf Road, Suite G
Clemmons, North Carolina 27012
Telephone Number. [phone]
Responsibilities of Contractor: Operation of WWTP
B.S. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question 6.5
for each. (If none, go to question B.6.)
a. List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule.
001
b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies.
®Yes ❑No
PPR
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 7 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
c. If the answer to B.5.b
4.5 mgd
d. Provide dates imposed
applicable. For improvements
applicable. Indicate
Implementation Stage
- Begin Construction
- End Construction
- Begin Discharge
- Attain Operational
e. Have appropriate
Describe briefly:
is "Yes," briefly describe, including
by any compliance schedule
planned independently
dates as accurately as possible.
Level
permits/clearances concerning other
201 Facilities Plan has been approved
new maximum daily inflow rate (if applicable).
or any actual dates of completion for the implementation steps listed
of local, State, or Federal agencies, indicate planned or actual completion
Schedule Actual Completion
MM/DD/YYYY MM/DD/YYYY
below, as
dates, as
N No
submitted for
08/01/02
been obtained?
Grants &
/ /
11/01/03
/ /
12/01/03
/ /
02/01/04
/ /
Federal/State requirements
by NCDENR — Construction
❑ Yes
Loans. Plans will be
Authorization To Construct by January 1, 2002.
B.6. EFFLUENT TESTING DATA
Applicants that discharge
effluent testing required
on combine sewer overflows
using 40 CFR Part 136
QA/QC requirements for
based on at least three
Outfall Number:
(GREATER THAN 0.1 MGD
to waters of the US must
by the permitting authority
in this section. All information
methods. In addition, this data
standard methods for analytes
pollutant scans and must be
001
ONLY).
provide effluent testing data for the following parameters. Provide
for each outfall through which effluent is discharged. Do not include
the indicated
information
conducted
other appropriate
data must be
reported must be based on data collected through analysis
must comply with QA/QC requirements of 40 CFR Part 136 and
not addressed by 40 CFR Part 136. At a minimum effluent testing
no more than four and on -half years old.
POLLUTANT
MAXIMUM DAILY
DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
14.0
mg/I
0.47
mg/1
Composite
CHLORINE (TOTAL
RESIDUAL, TRC)
28
ug/I
< 28
ug/I
Grab
DISSOLVED OXYGEN
N/A
TOTAL KJELDAHL
NITROGEN (TKN)
N/A
NITRATE PLUS NITRITE
NITROGEN
N/A
OIL and GREASE
N/A
PHOSPHORUS (Total)
N/A
TOTAL DISSOLVED SOLIDS
(TDS)
N/A
OTHER
N/A
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
Mow
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 8 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
NI Basic Application Information packet Supplemental Application Information packet:
IN Part D (Expanded Effluent Testing Data)
NI Part E (Toxicity Testing: Biomonitoring Data)
EN Part F (Industrial User Discharges and RCRA/CERCLA Wastes)
0 Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE, THE. FOLLOWING CERTIFICA"11ON.
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 is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations.
Name and official title Debra Cardwell,jTown Manager�
signature Lc1J, n
Telephone number [phone]
Date signed l► ig Ibt
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 9 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION INFORMATION
PART D. EXPANDED EFFLUENT TESTING DATA
Refer to the directions on the cover page to determine whether this section applies to the treatment works.
Effluent Testing: 1.0 mgd
to have) a pretreatment program,
pollutants. Provide the indicated
effluent is discharged. Do
and Pretreatment Works. If the treatment works has a design flow greater than or equal to 1.0
or is otherwise required by the permitting authority to provide the data, then provide effluent
effluent testing information and any other information required by the permitting authority
not include information on combined sewer overflows in this section. All information reported must
using 40 CFR Part 136 methods. In addition, these data must comply with QA/QC requirements
for standard methods for analytes not addressed by 40 CFR Part 136. Indicate in the
pollutants not specifically listed in this form. At a minimum, effluent testing data must be based
than four and one-half years old.
001 (Complete once for each outfall discharging effluent to waters of the United States.)
mgd or it has (or is required
testing data for the following
for each outfall through which
be based on data collected
of 40 CFR Part 136 and
blank rows provided below
on at least three pollutant
through analyses conducted
other appropriate QA/QC requirements
any data you may have on
scans and must be no more
Outfall number:
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MLJMDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
METALS (TOTAL RECOVERABLE), CYANIDE, PHENOLS, AND HARDNESS.
ANTIMONY
ARSENIC
BERYLLIUM
CADMIUM
34.0
ug/I
< 1.0
ugll
Weekly
Composite
CHROMIUM
COPPER
LEAD
MERCURY
0.21
ug/I
< 0.20
ugll
Weekly
Composite
NICKEL
SELENIUM
SILVER
THALLIUM
ZINC
CYANIDE
TOTAL PHENOLIC
COMPOUNDS
HARDNESS (as CaCO3)
Use this space (or a separate sheet) to provide information on other metals requested by the permit writer
ONION
MOW
Nab
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 10 of 42

ral
Pew
PI
n=1
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUMDAILY DISCHARGE ,
AVERAGEDAILY DISCHARGE.
ANALYTICAL .
METHOD
7; F=
MUMDL
Conc.
Units
Mass
Units
a
Concer
Units
Mass
Units
Number
of :
. Samples
VOLATILE ORGANIC COMPOUNDS
ACROLEIN
ACRYLONITRILE
BENZENE
BROMOFORM
CARBON
TETRACHLORIDE
CHLOROBENZENE
CHLORODIBROMO-
METHANE
CHLOROETHANE
2-CHLOROETHYLVINYL
ETHER
CHLOROFORM
DICHLOROBROMO-
METHANE
1,1-DICHLOROETHANE
1,2-DICHLOROETHANE
TRANS-1,2-DICHLORO-
ETHYLENE
1,1-DICHLORO-
ETHYLENE
1,2-DICHLOROPROPANE
1,3-DICHLORO-
PROPYLENE
ETHYLBENZENE
METHYL BROMIDE
METHYL CHLORIDE
METHYLENE CHLORIDE
1,1,2,2-TETRA-
CHLOROETHANE
TETRACHLORO-
ETHYLENE
TOLUENE
Pei
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 11 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NCO021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE .'
AVERAGE DAILY DISCHARGE..
ANALYTICAL
,METHOD>
MUMDL
Conc._Units,
Mass..
. Units.
•Cone ..
Units
Mass.::
Units
Number:.
•ofs;
Samples
1,1,1-
TRICHLOROETHANE
1,1,2-
TRICHLOROETHANE
TRICHLOROETHYLENE
VINYL CHLORIDE
Use this space (or a separate sheet) to provide information on other volatile organic compounds requested by the permit writer
ACID -EXTRACTABLE COMPOUNDS
P-CHLORO-M-CRESOL
2-CHLOROPHENOL
2,4-DICHLOROPHENOL
2,4-DIMETHYLPHENOL
4,6-DINITRO-O-CRESOL
2,4-DINITROPHENOL
2-NITROPHENOL
4-NITROPHENOL
PENTACHLOROPHENOL
PHENOL
2,4,6-
TRICHLOROPHENOL
Use this space (or a separate sheet) to provide information on other acid -extractable compounds requested by the permit writer
BASE -NEUTRAL COMPOUNDS
ACENAPHTHENE
ACENAPHTHYLENE
ANTHRACENE
BENZIDINE
BENZO(A)ANTH RAC E N E
BENZO(A)PYRENE
ria
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 12 of 42
I

falq
r-►
Mal
rA1
F=1
Owl
FIR
f2►
rAn
ra+
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAICY'DISCH;ARGE,
' - AVERAGE DAILY. DISCHARGE
ANALYTICAL
METHOD
MUMDL
Conc.
Units
,.Mass
Units,:
Conc.
x Units
`Mass
Units
Number
of
Samples
3,4 BENZO-
FLUORANTHENE
BENZO(GHI)PERYLENE
BENZO(K)
FLUORANTHENE
BIS (2-CHLOROETHOXY)
METHANE
BIS (2-CHLOROETHYL)-
ETHER
BIS (2-CHLOROISO-
PROPYL) ETHER
BIS (2-ETHYLHEXYL)
PHTHALATE
4-BROMOPHENYL
PHENYL ETHER
BUTYL BENZYL
PHTHALATE
2-CHLORO-
NAPHTHALENE
4-CHLORPHENYL
PHENYL ETHER
CHRYSENE
DI-N-BUTYL PHTHALATE
DI-N-OCTYL PHTHALATE
DIBENZO(A,H)
ANTHRACENE
1,2-DICHLOROBENZENE
1,3-DICHLOROBENZENE
1,4-DICHLOROBENZENE
3,3-DICHLORO-
BENZIDINE
DIETHYL PHTHALATE
DIMETHYL PHTHALATE
2,4-DINITROTOLUENE
2,6-DINITROTOLUENE
1,2-01PHENYL-
HYDRAZINE
r "1
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 13 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Outfall number 001 (Complete once for each outfall discharging effluent to waters of the United States.)
POLLUTANT
MAXIMUM DAILY DISCHARGE
AVERAGE DAILY DISCHARGE
ANALYTICAL
METHOD
MUMDL
Conc.
Units
Mass
Units
Conc.
Units
Mass
Units
Number
of
Samples
FLUORANTHENE
FLUORENE
HEXACHLOROBENZENE
HEXACHLORO-
BUTADI ENE
HEXACHLOROCYCLO-
PENTADIENE
HEXACHLOROETHANE
INDENO(1,2,3-CD)
PYRENE
ISOPHORONE
NAPHTHALENE
NITROBENZENE
N-NITROSODI-N-
PROPYLAMINE
N-NITROSODI-
METHYLAMINE
N-NITROSODI-
PHENYLAMINE
PHENANTHRENE
PYRENE
1,2,4-
TRICHLOROBENZENE
Use this space (or a separate sheet) to provide information on other base -neutral compounds requested by the permit writer
Use this space (or a separate sheet) to provide information on other pollutants (e.g , pesticides) requested by the permit writer
END OF PART D.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
IMP
r.
r
past
0.14
1101
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 14 of 42

114
mug
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPI L'EMENTAL_ APPLICATION'INFOR A¢ TION3 � j�� r o, ` f• K
�` f `.� k h-" _ ,+'----h z:' Hi.. ' f "'� :Tt-: G-.T. 5 ':.A ' :-;* , f�'Z2C .Y.'R .1. �'�.. - �r t v "'A"k �"�ff x � :L.'�'' _z.V ^ i '<{.... .
ri ,_ . ��i:{ � .... ; �� ��-u.yFw.- _ �a�..fi:!��ses�: _.. . 'a-:�_..�+�-' f._.,r'"���,���...�`-_�4�. _ x ��+ � 'L:.
� -
PARTE: T' XICiT 'TES 'II GaDA1 A? s ; , - z -
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must indude quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 1 Test number. 2 Test number. 3
a. Test information.
Test Species & test method number '
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
09/17101
06118/01
03/19101
Date test started
09/19/01
06/20/01
03/21 /01
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manual title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition number and year of
publication
3rd Edition (EPA/600/4.91/002)
3`d Edition (EPA/600/4-91/002)
3`d Edition (EPA/600/4-91/002)
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
4
4
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
4
4
4
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 15 of 4

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Test number: 1 Test number: 2 Test number: 3
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
@ effluent after dechlorination
@ effluent after dechlorination
@ effluent after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
4
4
4
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
4
4
4
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Dilute mineral water
Dilute mineral water
Dilute mineral water
Receiving water
Macintosh Lake
Macintosh Lake
Macintosh Lake
i. Type of dilution water. If salt water, specify `natural" or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
6
6
6
: i
pa �{ z •t � ft. $ t. ��i
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH 6.5 — 8.5
Yes
Yes
Yes
Salinity
Temperature
Ammonia
Dissolved oxygen 5.0 — 9.0
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
LCso
95% C.I.
%
%
%
Control percent survival
%
Other (describe)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
1.1
lowe
IMr
rr
�■r
alo
'um
li r
age i6 or az

mit
WOO
WNW
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Chronic:
NOEC
6 %
6 %
6 %
1C25
Control percent survival
100 %
100 %
100 %
Other (describe)
Pass
Pass
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
Was reference toxicant test within
acceptable bounds?
Yes
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
09/15/01
06/06/01
03/19/01
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes N No
Is the treatment works involved in a Tox city Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 17 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATIONS INFORMATION
;�..
PART E. TOXIDITYTESTI iG.DATA° _ `` ,.,f� "' �rL "`;` .
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. AO information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested In question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using altemate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 4 Test number. 5 Test number: 6
a. Test information.
Test Species & test method number
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Duffel! number
001
001
001
Dates sample collected
12/11/00
09/18/00
06/26/00
Date test started
12/13/00
9/20/00
06/28/00
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manual title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition
publicationumber and year of
3`d Edition (EPA/600/4-91/002)
3`d Edition (EPA/600/4-91/002)
Chronic; NCDEM 9/89/ANC Ceriodaphnia Phase ll
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
4
4
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
J
4
4
r
r
I
Pal
n
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 18 of 42

Per —
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Test number: 4 Test number: 5 Test number: 6
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
@ effluent after dechlorination
@ effluent after dechlorination
@ effluent after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
4
4
4
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
4
4
4
Flow -through
h. Source of dilution water. If laboratory water, specify type; if recety ng water, specify source.
Laboratory water
Dilute mineral water
Dilute mineral water
Dilute mineral water
Receiving water
Macintosh Lake
Macintosh Lake
Macintosh Lake
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
YV,,
6
6
1.5, 3.0, 6.0, 12, 24
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH 6.5 — 8.5
Yes
Yes
Yes
Salinity
Temperature
Ammonia
Dissolved oxygen 5.0 — 9.0
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
%
%
LCso
95% C.I.
%
%
%
Control percent survival
%
%
%
Other (describe)
Dann 10
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
f 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Chronic:
NOEC
6%
6%
12%
IC25
%
%
19.9
Control percent survival
100 %
100 %
100 %
Other (describe)
Pass
Pass
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
^Was reference toxicant test within
acceptable bounds?
Yes
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
12/06/00
08/30/00
05/05/00
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes NI No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 20 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION INFORMAT .;
..7 i ]��} i y'G' t"
..1
Sr 41. 3S.f 'I''` ,. F..a r t
�' i7s
TT Ti STING DA' 'T �►$ T ° { 1� 2_ �,}_ _ �� ¢ 6
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half nears. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 7 Test number. 8 Test number 9
a. Test information.
Test Species & test method number
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
05/29/00
04/10/00
01/18/00
Date test started
05/31/00
04/12/00
01/19/00
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manual title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition number and year of
publication
NC Ceriodaphnia Phase II
Chronic; NCDEM 9/89/A
3rd Edition (EPAI600/4-91/002)
3rd Edition (EPA/600/4-91/002)
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
J
4
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
4
4
4
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 21 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Test number: 7 Test number: 8 Test number: 9
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
@ effluent after dechlorination
@ effluent after dechlorination
@ effluent after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
4
4
J
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
4
4
4
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Dilute mineral water
Dilute mineral water
Dilute mineral water
Receiving water
Macintosh Lake
Macintosh Lake
Macintosh Lake
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
,... , . . Y..�iizA}�'a�.t Yens _ . _ �.,. _
1.5 , 3.0, 6.0, 12.0, 24
6
6
S
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH 6.5 — 8.5
Yes
Yes
Yes
Salinity
Temperature
Ammonia
Dissolved oxygen 5.0 — 9.0
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
LC50
95% C.I.
%
%
Control percent survival
Other (describe)
PIO
Mgt
Owl
rew
ae
Mod
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
age zz or az

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Chronic:
NOEC
6%
%
6%
IC25
7.4 %
Control percent survival
100 %
91.67 %
100 %
Other (describe)
Fail
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
Was reference toxicant test within
acceptable bounds?
Yes
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
05/05/00
03/31/00
01/12/00
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes N No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 23 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION: INFORMATION v
u! , ; i '3,ax f� `&�`..-.._ .,, ? r3f ... , ..
PARTS. ;' TOXI'CITY TESTING b)4T � � � , � � ; ; � ' ��
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must indude quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using altemate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half nears. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 10 Test number. 11 Test number. 12
a. Test information.
Test Species & test method number
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
09/20/99
03/22/99
12/07/98
Date test started
09/22/99
03/24/99
12/09/98
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manual title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition number and year of
publication
31.' Edition (EPA/600/4-91/002)
3rd Edition (EPA/600/4-91/002)
3`d Edition (EPA/600/4-91/002)
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
4
4
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
4
J
4
trot
awl
Woe
woo
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 24 of 42

4,s►
bat
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Test number: 10 Test number: 11 Test number: 12
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
@ effluent after dechiorination
@ effluent after dechiorination
@ effluent after dechiorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
4
4
4
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
4
4
4
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Dilute mineral water
Dilute mineral water
Receiving water
Macintosh Lake
Macintosh Lake
I. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
`
6
6
6
b..
� �ti�a '
i
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH 6.5 — 8.5
Yes
Yes
Yes
Salinity
Temperature
Ammonia
Dissolved oxygen 5.0 — 9.0
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
%
%
LC50
95% C.I.
%
%
%
Control percent survival
%
%
%
Other (describe)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 25 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Chronic:
NOEC
6%
6%
6%
IC25
Control percent survival
100 %
100 %
100 %
Other (describe)
Pass
Pass
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Was reference toxicant test within
acceptable bounds?
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
03/17/99
11 /11 /98
Other (describe)
E.3. Toxicity Reduction Evaluation.
O Yes NI No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 26 of 42

601
r.r
tad
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTALAPPLICATION INFOR•M,ATI�ON
�. t. ....
Y
.., . r�.f...,.� . , ,._. �....�_. _ . ems_ .
. t. a,a ',:YC " t •'".!Y4 r td' .i`^ + i,. -'s "'�,.:cr»} sc.;ti+#]'"T^ "i:= r�M+. 'y ', it ti.' ,rti j-;�.r
PAI„f< d 'f 1 i "]..• � .'..) Ey�> •-••M W;ti;'-:. i,?{k.7 Y "i�ey"' Yy4 e'I j P i° 3, '4 '.
WI 7OXIGIT.Y .TESTI1 5MA ` �s, : �y,��` �"v!%^y' y y. } u� T� I �i 4p .= J
.- . .:: -:., � � i .' `.Ci f .`P'tZe r.-: r«:TI.-y_s-s.. . +. ., ... , . V^"_eF . ....«, t.'• - .. _ .. .... ... ...... .. _.
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 13 Test number 14 Test number: 15
a. Test information.
Test Species & test method number
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
09/21/98
07/06/98
03/16/98
Date test started
09/23/98
07108198
03/18/98
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manua! title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition number and year of
publication
3rd Edition (EPA/600/4-91/002)
3.11 Edition (EPA/600/4-91/002)
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
4
4
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
4
4
4
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 27 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Test number: 13 Test number: 14 Test number: 15
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
@ effluent after dechlorination
@ effluent after dechlorination
@ effluent after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
4
4
4
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
4
4
-
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Dilute mineral water
Dilute mineral water
Receiving water
Macintosh Lake
Macintosh Lake
i. Type of dilution water. If salt water, specify "natural" or type of art'dicial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
t fF-
fi t.
6
6
6
t
+.9
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH 6.5 — 8.5
Yes
Yes
Yes
Salinity
Temperature
Ammonia
Dissolved oxygen 5.0 — 9.0
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
%
LCso
95% C.I.
%
%
%
Control percent survival
Other (describe)
ti
try
t41
I In IS
eft
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 28 0

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Chronic:
NOEC
6%
6%
6%
Ices
%
Control percent survival
100 %
100 %
100 %
Other (describe)
Pass
Pass
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Yes
Yes
Yes
Was reference toxicant test within
acceptable bounds?
Yes
Yes
Yes
What date was reference toxicant test
run (MM/DD/YYYY)?
08/08/98
/ /
03/11/98
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes N No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Blomonitoring Test Information. If you have
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
submitted biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 29 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL- APPLICATION INFORMATION .
PART�E }1'OXIITYr?'ESTtNCDATA i
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must Include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested In question E.4 for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 16 Test number: 17 Test number: 18
a. Test information.
Test Species & test method number
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
09/08/97
06/06/97
03/31/97
Date test started
09/10/97
06/04/97
04/02/97
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manual title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition number and year of
publication
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
4
q
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
4
4
J
log
NES
490
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 30 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTALAPPLICATIONINFORMATION
_ ".:, � . - l.... Tres ;:"'....i. .. ;;:..ate'«e...Lk.+.4». -r _-:.. « .:.v t .,+e., -! .. .. i :.t..x t .. ... y-+r .2 :e;c'+. .. «..... .... _. .... ,....
fi
PART 'E , TOXICI1W'TESTING DATA rz , 4 K=t j G L < p 4=-
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question E.4 for previously submitted Information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests
® chronic 0 acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half Years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number. 16 Test number. 17 Test number. 18
a. Test information.
Test Species & test method number
Ceriodaphnia
Ceriodaphnia
Ceriodaphnia
Age at initiation of test
< 24 hrs
< 24 hrs
< 24 hrs
Outfall number
001
001
001
Dates sample collected
09/08/97
06/06/97
03/31/97
Date test started
09/10/97
06/04/97
04/02/97
Duration
24 hrs
24 hrs
24 hrs
b. Give toxicity test methods followed.
Manual title
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
NC Ceriodaphnia Chronic
Effluent Blossay Procedure
Edition number and year of
publication
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
4
4
4
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
4
4
4
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 30 of 42

r�l
t
OILS
RCN
r=k1
VIER
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0O21873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
Test number: 16 Test number: 17 Test number: 18
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
@ effluent after dechlorination
@ effluent after dechlorination
@ effluent after dechlorination
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
4
J
J
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
4
4
4
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Receiving water
i. Type of dilution water. If salt water, specify "natural" or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
'
6
6
6
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH 6.5 — 8.5
Yes
Yes
Yes
Salinity
Temperature
Ammonia
Dissolved oxygen 5.0 — 9.0
Yes
Yes
Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
LCSo
95% C.I.
%
%
%
Control percent survival
%
%
%
Other (describe)
Page 31 of 42
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.

FACILITY NAME AND PERMIT NUMBER: I PERMIT ACTION REQUESTED:
Town of Mayodan WWTP, NC0021873 1 Modification
RIVER BASIN:
Roanoke
Chronic:
NOEC
6%
6%
6%
1c25
%
Control percent survival
100 %
100 %
100 %
Other (describe)
Pass
Pass
Pass
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run (MM/DD/YYYY)?
/ /
/ /
/ /
Other (describe)
E.3. Toxicity Reduction Evaluation.
❑ Yes N No
Is the treatment works involved in a Toxicity Reduction Evaluation?
If yes, describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted
cause of toxicity, within the past four and one-half years, provide the dates
of the results.
Date submitted: / / (MM/DD/YYYY)
biomonitoring test information, or information regarding the
the information was submitted to the permitting authority and a summary
Summary of results: (see instructions)
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
NMI
Ohm
Aft.
taw
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 32 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED: RIVER BASIN:
Modification
Roanoke
SUPPLEMENTAL APPLICATION INFORMATI'
•
PA• RT F 1ND• USTRIA6U3E DISCHARGESnAND RCR-AreikdKiifIl
All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA, or other remedial wastes must
complete part F.
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have, or is subject ot, an approved pretreatment program?
® Yes
0 No
F.2. Number of Significant Industrial Users (SIUs) and Categorical Industrial Users (ClUs). Provide the number of each of the following types of
industrial users that discharge to the treatment works.
a. Number of non -categorical SIUs.
b. Number of Gills.
SIGNIFICANT INDUSTRIAL USER INFORMATION:
4
0
Supply the following Information for each SIU. If more than one SIU discharges to the treatment works, copy questions F.3 through F.8 and
provide the information requested for each SIU.
F.3. Significant lndustrlal User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name:
Unifi, Inc., (104)
Mailing Address: 271 Cardwell Road
Mayodan, North Carolina 27027
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
See Attached
F.6. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Dyed polyester
Raw materiat(s): Natural polyester yarn
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day (gpd) and whether the discharge is continuous or intermittent.
0.866 gpd ( X continuous or intermittent)
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged into the collection system
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local Limits
® Yes ❑ No
b. Categorical pretreatment standards 0 Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 33 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED: I RIVER BASIN:
Modification 1 Roanoke
I
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
0 Yes N No If yes, describe each episode.
See Attached 2
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
0 Yes N No (go to F.12)
F.10. Waste transport Method by which RCRA waste is received (check all that apply):
0 Truck ❑ Rail 0 Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been
0 Yes (complete F.13 through F.15.) N No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLAJRCRA/or
the next five years).
notified that it will) receive waste from remedial activities?
other remedial waste originates (or is excepted to origniate in
to be received). Include data on
F.14. Pollutants. List the hazardous constituents that are received (or are expected
known. (Attach additional sheets if necessary.)
volume and concentration, if
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
0 Continuous 0 Intermittent If
intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
Aar
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 34 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES
All treatment works receiving discharges from significant industrial users
complete part F.
GENERAL INFORMATION: .
or which receive RCRA,CERCLA,
to, an approved pretreatment program?
Users (ClUs). Provide the number
4
or other remedial wastes must
of each of the following types of
questions F.3 through F.8 and
F.1. Pretreatment program. Does the treatment works have, or is subject
N Yes ❑ No
F.2. Number of Significant Industrial Users (Ms) and Categorical Industrial
industrial users that discharge to the treatment works.
c. Number of non -categorical SIUs.
d. Number of CIUs. 0
SIGNIFICANT INDUSTRIAL USER INFORMATION:
to the treatment works, copy
Supply the following information for each SIU. If more than one SIU discharges
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Unifi, Inc., (102)
Mailing Address: Post Office Box 737
Madison North Carolina 27025
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
See Attached
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Textured and covered nylon yarn
Raw material(s): Nylon yarn. spandex yarn
F.6. Flow Rate.
c. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
0.120 gpd ( X continuous or intermittent)
the collection system in gallons per
discharged into the collection system
d. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits N Yes 0 No
b. Categorical pretreatment standards 0 Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 35 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes IN No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
❑ Yes ❑ No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
❑ Truck ❑ Rail ❑ Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
.
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
❑ Yes (complete F.13 through F.15.) ❑ No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
c. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
d. Is the discharge (or will the discharge be) continuous or intermittent?
0 Continuous 0 Intermittent If intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
Nam
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 36 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA!CERCLA WASTES
All treatment works receiving discharges from significant industrial users
complete part F.
GENERAL INFORMATION: '
or which receive RCRA,CERCLA,
to, an approved pretreatment program?
Users (ClUs). Provide the number
4
or other remedial wastes must
of each of the following types of
F.1. Pretreatment program. Does the treatment works have, or is subject
N Yes ❑ No
F.2. Number of Significant Industrial Users (SIUs) and Categorical Industrial
industrial users that discharge to the treatment works.
a. Number of non -categorical SIUs.
b. Number of CIUs. 0
SIGNIFICANT INDUSTRIAL USER INFORMATION:
to the treatment works, copy questions F.3 through F.8 and
Supply the following information for each SIU. If more than one SIU discharges
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Sprinqwood Fabrics
Mailing Address: 131 Commerce Lane
Stoneville, North Carolina 27048
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
See Attached
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Pester fabric
Raw material(s): Polyester
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into
day (gpd) and whether the discharge is continuous or intermittent.
0.076 gpd ( X continuous or intermittent)
the collection system in gallons per
discharged into the collection system
b. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits N Yes 0 No
b. Categorical pretreatment standards 0 Yes 0 No
If subject to categorical pretreatment standards, which category and subcategory?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 37 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yeses,' No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
0 Yes 0 No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
❑ Truck 0 Rail ❑ Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
❑ Yes (complete F.13 through F.15.) 0 No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origni •e in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, it
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
b. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous 0 Intermittent If
intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 38 of 42

MOO
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION;- INFORMATION
PART F.INDUSTRIAL USER DISCHARGES'` AND RCRA/CERCLA`WASTES
All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA,
complete part F.
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have, or is subject to, an approved pretreatment program?
NI Yes ❑ No
F.2. Number of Significant Industrial Users (Sills) and Categorical Industrial Users (ClUs). Provide the number
industrial users that discharge to the treatment works.
c. Number of non -categorical Sills. 4
or other remedial wastes must
of each of the following types of
questions F.3 through F.8 and
d. Number of CIUs. 0
SIGNIFICANT INDUSTRIAL USER INFORMATION: •
Supply the following information for each SIU. If more than one SIU discharges to the treatment works, copy
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Unifi. Inc. (105)
Mailing Address: 805 Island Drive
Madison, North Carolina 27025
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
See Attached
F.5. Principal Product(s) and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Textured nylon
Raw material(s): Partially oriented nylon yarn, spandex yarn
F.6. Flow Rate.
c. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the
day (gpd) and whether the discharge is continuous or intermittent.
0.083 gpd ( X continuous or intermittent)
collection system in gallons per
into the collection system
d. Non -process wastewater flow rate. Indicate the average daily volume of non -process wastewater flow discharged
in gallons per day (gpd) and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ® Yes ❑
b. Categorical pretreatment standards 0 Yes 0
If subject to categorical pretreatment standards, which category and subcategory?
No
No
�. EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 39 of 42

ir
FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan VVWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems (e.g.,
upsets, interference) at the treatment works in the past three years?
❑ Yes N No If yes, describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck, rail or dedicated pipe?
❑ Yes 0 No (go to F.12)
F.10. Waste transport. Method by which RCRA waste is received (check all that apply):
❑ Truck 0 Rail 0 Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount (volume or mass, specify units).
EPA Hazardous Waste Number Amount Units
CERCLA (SUPERFUND) WASTEWATER, RCRA REMEDIATIONICORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently (or has it been notified that it will) receive waste from remedial activities?
❑ Yes (complete F.13 through F.15.) 0 No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates (or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received (or are expected to be received). Include data on volume and concentration, if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
c. Is this waste treated (or will be treated) prior to entering the treatment works?
❑ Yes ❑ No
If yes, describe the treatment (provide information about the removal efficiency):
d. Is the discharge (or will the discharge be) continuous or intermittent?
❑ Continuous 0 Intermittent If intermittent, describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
MOO
Ube
r.,
INN
MIER
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 40of42 ..,

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
SUPPLEMENTAL APPLICATION yIN FORIV�AION
[ W fV 2.a19'. ...,, •
rF ? _it-i:. , e .. 3 , . .. , ,, , ... <. ... , f;{'''
,. t t - ek � i .K
PART,'G `COMBINED SEWER�SYSTEMS � ♦ I. A ' ,,j' �t i y t
If the treatment works has a combined sewer system, complete Part G.
G.1. System Map. Provide a map indicating the following: (may be included
a. All CSO discharge points.
b. Sensitive use areas potentially affected by CSOs (e.g., beaches,
outstanding natural resource waters).
c. Waters that support threatened and endangered species potentially
G.2. System Diagram. Provide a diagram, either in the map provided in G.1
includes the following information.
a. Location of major sewer trunk lines, both combined and separate
b. Locations of points where separate sanitary sewers feed into the
c. Locations of in -line and off-line storage structures.
d. Locations of flow -regulating devices.
e. Locations of pump stations.
with Basic Application Information)
drinking water supplies, shellfish beds, sensitive aquatic ecosystems, and
affected by CSOs.
or on a separate drawing, of the combined sewer collection system that
sanitary.
combined sewer system.
.
CSO OUTFALLS:
Complete questions G.3 through G.6 once for each CSO discharge point.
G.3. Description of Outfall.
a. Outfatl number
b. Location
(City or town, if applicable) (Zip Code)
(County) (State)
(Latitude) (Longitude)
c. Distance from shore (if applicable) ft.
d. Depth below surface (if applicable) ft.
e. Which of the following were monitored during the last year for this
❑ Rainfall 0 CSO pollutant concentrations
❑ CSO flow volume 0 Receiving water quality
f. How many storm events were monitored during the last year?
G.4. CSO Events.
a. Give the number of CSO events in the last year.
events (0 actual or 0 approx.)
CSO?
0 CSO frequency
b. Give the average duration per CSO event.
hours (0 actual or 0 approx.)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22.
Page 41 of 42

FACILITY NAME AND PERMIT NUMBER:
Town of Mayodan WWTP, NC0021873
PERMIT ACTION REQUESTED:
Modification
RIVER BASIN:
Roanoke
c. Give the average volume per CSO event.
million gallons (❑ actual or ❑ approx.)
d. Give the minimum rainfall that caused a CSO event in the last year
Inches of rainfall
G.5. Description of Receiving Waters.
a. Name of receiving water:
b. Name of watershed/river/stream system:
United State Soil Conservation Service 14-digit watershed code (if known):
c. Name of State Management/River Basin:
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
G.6. CSO Operations.
Describe any known water quality impacts on the receiving water caused by this CSO (e.g., permanent or intermittent beach closings, permanent or
intermittent shell fish bed closings, fish kills, fish advisories, other recreational loss, or violation of any applicable State water quality standard).
END OF PART G.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 42 of 42

Additional information, if provided, will appear on the following pages.
Cal
fort
IrZSI
Industrial Processes
Unifi, Inc., 271 Cardwell Road (104)
Polyester yarn in the form of large spools is dyed in pressuized
vessels using a mulit-step, batch process. After drying, some yarn
is would onto paper cones and boxed for sale. Yarn lubricant is
added to some yarn at the end of the dyeing step. After drying the
yarn is boxed for sale.
Unifi, Inc., 805 Island Drive (105)
Partially oriented nylon yarn is texturized in a dry process where the
nylon yarn is heated and twisted to change the bulk and feel. In a
separate process, spandex yarn is covered by wrapping textured
nylon around a center of spandex yarn.
Unifi Inc., P.O. Box 737 (102)
Plant 1: Physical characteristics of nylon yarn are modified through
the texturizing process which draws and crimps the yarn using the
false twist process.
Plant 5: Textured nylon is wrapped around spandex yarn in a
process called covering. Mineral oil lubricants are applied to the
surface of the yarn products.
Springwood Fabrics
Textile operation, fabric finishing operation, heat transfer printing
and fabric cutting.
NPDES FORM 2A Additional Information

ATTTAC H E D 2
The discharge from this industry caused an upset at the POTW during the
period of March 2000 through July 2000. The yarn lubricant that is used in
the manufacturing process caused settling problems at the POTW. The
Town met with the industry to discuss the impact that the yarn lubricant
was causing at the POTW and to discuss corrective actions the industry
would take. Unifi, Inc. substituted the yarn lubricant with another type that
did not cause operation problems at the POTW. In addition, Unifi, Inc.
installed a DAF unit.
NPDES FORM 2A Additional Information

Speculative Limits

4 4 • 1 4.-01.401 11 VIJI N I
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State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Govemor
Bill Holman, Secretary
Kerr T. Stevens, Director
Ms. Debra E. Cardwell. Town Manager
Town of Mayodan
210 West Main Street
Mayodan. North Carolina 27027
March 2. 2000
AWA
AMA
NCDENR
Subiect: SpeculaUve Effluent Limitations
NPDES Permit No. NC0021873
Mayodan WWTP
Rockingham County
Dear Ms. Cardwell:
Reference is made to your request. dated February 3. 2000. for speculative limits for the proposed
expansion of the above referenced wastewater treatment plant. We are hereby supplying the following
speculative limits for a facility increase from 3.0 MGD to 4.5 MGl) at the existing discharge location into the
Mayo River:
BODs (Summer/Winter)
NHSN (Summer/Winter)
TSS
pH
Fecal Conform
Residual Chlorine
Total Phosphorus
Total Nitrogen
50/50 (mg/L)
9.3/27.5 (mg/L)
30/30 (mg/L)
6-9 (Standard Units)
20() (Colonies / 100 ml)
28 ({tg/L)
Monitor
Monitor
A quarterly whole effluent toxicity tent limit would also be assigned in the NP I)E:S permit. The test
assigned would be a chronic test at a concentration of 8.5%. It should also be noted that if the treatment plant
continues to serve any Significant industrial Users. the facility will he required to maintain a pretreatment
program. In addition. a complete evaluation of Limits and monitoring requirements for metals and other
toxicants will need to be addressed when a formal NPDES permit application is filed.
Under current UWQ procedure. dechlorinattoet and residual chlorine limits are required for all new or
expanding dischargers proposing the use of chlorine for disinfection. The level of residual chlorine in your
effluent necessary to ensure against acute toxicity given above. 'me process of chlorination/dechlorination or
an alternate form of disinfection. such as ultraviolet radiation. should allow the facility to comply with the
residual chlorine limit. Should an alternative form of disinfection he employed. the requirement to monitor
residual chlorine will he waived.
Please: be advised that response to this request dews not guarantee that the Division will issue an
NPDES permit to discharge treated wastewater into these receiving waters. It should he noted that the
1617 Mail Service Center. Raleigh. North Carolina 27699-1617 - Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Ernpk yor • 50% recycled 1 IO%. poet -consumer paper

r RVI 1 • 1 ...IWI'1. ur _I ors 1 1. urt•
1 1 Y 1 1 14,• • . .././�
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Ali
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1 t•hru.tr i 1
1'.ti;I•
expansion of an eximing facility invoiving an expenditure of public funds,, or unt of public (state). lands and
having a design capiuttty of ().5 MGl) or greater. will require preparation and milimitta1 of an environmental
assessment (EA) by the applicant. UWQ will not accept a permit application Car A project requiring an EA until
the document has been approved by the iDepartment of Environment :unit Natural Resources. and a Finding of
Nu Significant Impact (FONSI) has been sent to the state. Clearinghouse for review and cornment. The >•.A
should contain a clear justification for the proposed facility and an analysis of potential alternativets, which
should include a thorough evaluation of non -discharge alternatives. In addition. an FA should show how water
reuse, conservation and inflow/infiltration reductions have been considered. Nundis charge alternatives. such as
spray irrigation. water conservation. inflow and infiltration reduction or connection to a regional treatment and
disposal system. are considered to he environmentally preferably to a surface water discharge. North Carolina
General Statutes require that a practicable waste treatment and disposal alternative with the least adverse
irnpact on the environment be implemented. If the EA demonstrates that the protect may result in significant
adverse affects on the quality of the environment, an Environmental Impact Statement will be required. Gloria
Putnam of the Water Quality Planning Branch can provide further information regarding the requirements of
the N.C. Environmental Policy Act and can be contacted at [phone], eartrnainn 567.
Please note that the limits, given herein are speculative and are not binding unless they are part of an
issued NPDES permit. All information pertaining to the request has been sent to our Central Files for storage.
If it becomes necessary to request an NPDES permit, please submit a complete application package including
appropriate fees.
Should you have any questions or comments regarding this speculative limits request. please do not
hesitate to contact Mark McIntire at [phone]. extension 55.3.
Sincerely.
7/V )714,4<j°--
'gravid A. Goodrich
Supervisor. NPDES Unit
cc: Central Files (with attachments)
Winston-Salem Regional Office. Water Quality Section
NPDES Unit Files (with attachments)
Gloria Putnam, DWQ Planning Branch

WWTP Calculations

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11214
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.Ion Name: Town of Mavodan ww-rP
1 IUA No. MY0002
Date: 6-Nov-01
Description: Aeration Basin Sizing and Parameter Calculation Worksheet
Formulas:
Sludge Age (days) = Suspended Solids In Aeration
Suspended Solids To Aeration
MLSS (mg/I) = Desired Suspended Solids In Aeration
Weight Of Water In Aeration
MCRT (days) = Suspended Solids In Aeration
SS In WAS + SS In Effluent
Food To Microorganism Ratio = 130D To Aeration
MLVSS in Aeration
Input Parameters:
Calculated Parameters:
Wastewater Flow & Influent Conditions:
Calculated Parameters:
Peak Wet Weather Flow (mgd) = 6.000
ADF BOD5 Destroyed (Ib/day) _>
6,380
Design Year Flow, ADF (mgd) = 4.500
ADF Ammonia -Nitrogen Destroyed (Ib/day)=>
1,152
Start -Up Anticipated Flow (mgd) = 3.250
Yr.1 GODS Destroyed (lb/day) =>
4,608
Design Sludge Return Rate (mgd) = 1.000
Yr.1 Ammonia -Nitrogen Destroyed (lb/day) =>
832
Influent BOD5 (mg/I) = 200
Influent TSS (mg/l) = 200
Oxygen Rates
Influent TKN (mg/l) = 40
ADF Actual Oxygen Transfer Rate, AOTR (Ib/day) =>
13,275
Effluent BOD5 Required (mg/I) = 30
ADF Standard Oxygen Transfer Rate, SOTR (Ib/day) =>
21,514
Effluent TSS Required (mg/I) = 30
Yr.1 Actual Oxygen Transfer Rate, AOTR (lb/day) =>
9,588
Effluent NH3-N (mg/I) = 9
Yr.1 Standard Oxygen Transfer Rate, SOTR (Ib/day) =>
15,538
Max Temperature (deg C) = 27
Site Elevation = 100
HP Required
Temperature Correction Theta = 1.024
HP At Average Daily Flow =>
299
Saturation D.O. at Temp, Elev Cst (mg/I) = 7.99
HP At Year 1 Flow =>
216
Design Assumptions
Reactor Basin Volume (Based on IbBOD/1000 cuft)
Design MLSS (mg/I) = 3,000
Volume Required (gals) =>
1,590,772
Yr.1 MLSS (mg/I) = 3,000
Detention Time (hrs)=>
8.48
RAS and WAS Concentration (mg/l) = 10,000
Transfer Alpha Value = 0.85
i System Mass Requirements
Transfer Beta Value = 0.95
1 System Mass - BOD x MCRT x Yield (lb) =>
114,842
Mean Cell Residence Time (days) = 24
Volume Required (gal) =>
4,590,000
Operating Dissolved Oxygen, Co (mg/1) = 2.00
Detention Time (hrs) =>
24.48
Ib BODS/1000 cu ft Aeration Vol = 30
Sludge Yield (lb TSS/lb BOD5 Destroyed) = 0.75
Selected Volume - Input Value (gals)
4,500,000
Volatile SS Fraction (MLVSS/MLSS)= 0.65
Selected Basin Evaluation
Rate Coefficients
ADF Detention Time (hrs) =>
24.00
Ib Oxygen/lb BOD5 Applied = 1.25
1 Yr. 1 Detention Time (hrs) =>
33.23
Ib Oxygen/lb NH3-N Applied = 4.60
Mixing HP Required =>
902
ADF Process HP Required =>
216
HP Coefficients
ADF Food To Mass (lb BOD/lb MLSS) =>
0.09
Ib 02/BHP-Hr = 3.00
Yr. 1 Food To Mass (Ib BOD/lb MLSS)=>
0.06
BHP/1000 Cu Ft = 1.5
ADF Sludge Wasting Rate (gpd) =>
42,750
_ Yr. 1 Sludge Wasting Rate (gpd) =>
46,500

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.lob Name: 'town of Mayodan WWII'
I-IUA No. MY0002
Date: 6-Nov-0
Description: Clarifier Evaluation 2001 Clarifier Addition Only
Formulas:
Surface Loading Rate (GPD/SF) = Flow Rate (GPD) / Surface Area (SF)
Hydraulic Detention Time (Hrs) = Tank Volume (GALS) x 24 Hr/Day / Flow (GPD)
Solids Loading Rate (Lbs/Day/SF) = Solids Applied (Lb/Day) / Surface Area (SF)
Weir Overflow Rate (GPD/FT of Weir) = Flow Rate (GPD) / Weir Length (FT)
Input Parameters:
Calculated Parameters:
Wastewater Flow:
Calculated Diameter:
Peak Wet Weather Flow (mgd) = 2.000
Surface Loading Basis (FT) =>
56.42
Design Ycar Flow, ADF (mgd) = 1.500 '
Solids Loading Basis (FT) _>
39.91
Start -Up Anticipated Flow (mgd) = 1.000
Weir Overflow Basis (FT) =>
47.75
Design Sludge Return Rate (mgd) = 1.000
r
Detention Time Basis (FT) _>
72.93
Mixed Liquor Suspended Solids Concentration:
Minimum Diameter Required (FT) =>
72.93
ADF MLSS (mg/I) = 3,000
Selected Diameter (FT) =>
75.00
Yr.1 MLSS (mg/I) = 3,000
Calculated Conditions:
Clarifier Parameters:
Surface Loading Rate:
Number Of Units = 1
Peak Wet Weather (GPD/SF) _>
453
Sidewater Depth (ft) = 12.0
Design Year, ADF (GPD/SF) =>
340
Design Surface Loading Rate (GPD/SF) = 600
Design Solids Loading Rate (Lb/Day/SF) = 30
Design Weir Overflow Rate (GPD/LF) = 10,000
Design Detention Time (Hrs) = 6
Solids Loading Rate:
Peak Flow, ADF MLSS (Lb/Day/SF) =>
11
i ADF+RAS. ADF MLSS (Lb/Day/SF) =>
14
ADF+RAS, Yr.1 MLSS (Lb/Day/SF) =>
11
Weir Overflow Rate:
Peak Wet Weather (GPD/LF) _>
8,488
Design Year, ADF (GPD/LF) _>
6,366
Detention Time:
Peak Wet Weather (Hrs) =>
4.76
Design Year. ADF (Hrs) _>
6.34

Job Name: "town of Mayodan WWTP
IllJ% No. MYUOO2
Date: 6-Nov-0
Description: Clarifier Evaluation 1994 Clarifier Addition Only
Formulas:
Surface Loading Rate (GPD/SF) = Flow Rate (GPD) / Surface Area (SF)
Hydraulic Detention Time (Hrs) = Tank Volume (GALS) x 24 Hr/Day / Flow (GPD)
Solids Loading Rate (Lbs/Day/SF) = Solids Applied (Lb/Day) / Surface Area (SF)
Weir Overflow Rate (GPD/FT of Weir) = Flow Rate (GPD) / Weir Length (FT)
Input Parameters:
Calculated Parameters:
Wastewater Flow:
Calculated Diameter:
Peak Wet Weather Flow (mgd) = 2.000
Surface Loading Basis (FT) =>
60.94
Design Year Flow, ADF (mgd) = 1.750
Solids Loading Basis (FT) =>
43.11
Start -Up Anticipated Flow (mgd) = 1.500
Weir Overflow Basis (FT) =>
55.70
Design Sludge Return Rate (mgd) = 1.500
Detention Time Basis (FT) _>
78.78
Mixed Liquor Suspended Solids Concentration:
Minimum Diameter Required (FT) _>
78.78
ADF MLSS (mg/I) = 3,000
Selected Diameter (FT) =>
75.00
Yr.1 MLSS (mg/I) = 3,000
Calculated Conditions:
Clarifier Parameters:
Surface Loading Rate:
Number Of Units = 1
Peak Wet Weather (GPD/SF) =>
453
Sidewater Depth (ft) = 12.0
Design Year, ADF (GPD/SF) =>
396
Design Surface Loading Rate (GPD/SF) = 600
Design Solids Loading Rate (Lb/Day/SF) = 30
Design Weir Overflow Rate (GPD/LF) = 10,000
Design Detention Time (Hrs) = 6
Solids Loading Rate:
Peak Flow, ADF MLSS (Lb/Day/SF) =>
11
g ADF+RAS, ADF MLSS (Lb/Day/SF) =>
18
ADF+RAS, Yr.1 MLSS (Lb/Day/SF) =>
17
r
Weir Overflow Rate:
Peak Wet Weather (GPD/LF) _>
8.488
Design Year, ADF (GPD/LF) =>
7.427
1 Detention Time:
Peak Wet Weather (Hrs) =>
4.76
Design Year, ADF (Hrs) _>
5.44

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Job Name: Town of Mavodan WWII
1I11A No. MY0002
Date: 6-Nov-01
Description: Clarifier Evaluation 1981 Original Clarifiers
Formulas:
Surface Loading Rate (GPD/SF) = Flow Rate (GPD) / Surface Area (SF)
Hydraulic Detention Time (Hrs) = Tank Volume (GALS) x 24 Hr/Day / Flow (GPD)
Solids Loading Rate (LbslDay/SF) = Solids Applied (Lb/Day) / Surface Area (SF)
Weir Overflow Rate (GPD/FT of Weir) = Flow Rate (GPD) / Weir Length (FT)
Input Parameters: -
Calculated Parameters:
Wastewater Flow:
Calculated Diameter:
t
Peak Wet Weather Flow (mgd) = 1.750 .
Surface Loading Basis (FT) =>
36.42
Design Year Flow, ADF (mgd) = 1.250
Solids Loading Basis (FT) =>
25.76
Start -Up Anticipated Flow (mgd) = 1.250
Weir Overflow Basis (FT) =>
19.89
Design Sludge Return Rate (mgd) = 1.000 i
Detention Time Basis (FT) =>
47.08
Mixed Liquor Suspended Solids Concentration:
Minimum Diameter Required (FT) =>
47.08
ADF MLSS (mg/I) = 3,000
Selected Diameter (FT) _>
45.00
Yr.l MLSS (mg/I) = 3,000 f
Calculated Conditions:
Clarifier Parameters: 3
Surface Loading Rate:
Number Of Units = 2
t Peak Wet Weather (GPD/SF) _>
550
Sidewater Depth (ft) = 12.0
Design Year, ADF (GPD/SF) =>
393
Design Surface Loading Rate (GPD/SF) = 600
Design Solids Loading Rate (Lb/Day/SF) = 30
Design Weir Overflow Rate (GPD/LF) = 10,000
Design Detention Time (Hrs) = 6
Solids Loading Rate:
Peak Flow, ADF MLSS (Lb/Day/SF) =>
14
ADF+RAS, ADF MLSS (Lb/Day/SF) =>
18
ADF+RAS, Yr.I MLSS (Lb/Day/SF) =>
18
Weir Overflow Rate:
Peak Wet Weather (GPD/LF) =>
6,189
Design Year, ADF (GPD/LF) =>
4,421
Detention Time:
Peak Wet Weather (Hrs) =>
3.92
Design Year, ADF (Hrs) =>
v
5.48
Fat

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Job Name.: Town of \4avodan WWII)
1 IUA No. MY0002
Date: 6-Nov-01
Description: Sludge Digestor Calculations
Formulas:
Pounds Of Solids Wasted Per Day = (Q Was)(8.34)(MLSS Was)
Volume Of Thickened Sludge (gpd) = Pounds Of Solids Wasted Per Day
(Thickened Conc - Decant Conc)(8.34)
Input Parameters
Wastewater Flow
) Calculated Parameters
Sludge Digestion & Storage Calculated Parameters
Peak Wet Weather Flow (mgd) = 11.250
ADF Pounds Of Soilids Per Day =>
3,565
Design Year Flow, ADF (mgd) = 4.500
Yr.1 Pounds Of Soilids Per Day =>
3,878
Start -Up Anticipated Flow (mgd) = 3.250
ADF Thickened Sludge Volume (gpd) =>
17,169
Design Sludge Return Rate (mgd) = 1.000
Yr.l Thickened Sludge Volume (gpd) =>
18,675
Influent BODS (mg/I) = 200
ADF Annual Sludge Disposal Cost (S/Yr) =>
S156,664
Influent TSS (mgll) = 200
Influent TKN (mg/I) = 40
Effluent BODS Required (mg/I) = 30
Effluent TSS Required (mg/I) = 30
Yr. 1 Annual Sludge Disposal Cost (S/Yr) =>
Aerobic Digestion 503 Sludge Digestion & Storage Requirements
S170,407
Effluent NH3-N (mg/I) = 9
ADF Volume Required At 20 Dec C (40 Days)=>
686,747
Max Temperature (deg C) = 27
Yr. 1 Volume Required At 20 Dec C (40 Days)=>
746,988
Site Elevation = 100
Temperature Correction Theta = 1.024
Saturation D.O. at Temp, Elev Cst (mg/1) = 7.99
Sludge Storage Volume Required (30 days)=>
Sludge Digestion / Storage Volume Available / Provided
515,060
Design Assumptions
Aeration Basin (1981) Storage Volume
532,815
Design MLSS (mg/I) = 3,000
1981 WWTP Expansion Storage Volume
80,784
Yr. I MLSS (mg/I) = 3,000 .;
RAS and WAS Concentration (mg/I) = 10,000
'Pool/
613,599
Transfer Alpha Value = 0.85
' 1994 WWTP Expansion Sludge Digestion
431,783
Transfer Beta Value = 0.95
Proposed Digester - 2001 Sludge Digestion
388,604
Mean CeII Residence Time (days) = 24
Operating Dissolved Oxygen, Co (mg/1) = 2.00
lb BODS/1000 cu ft Aeration Vol = 30
'lima!
t Additional Storage Volume Available
820,38"
Sludge Yield (lb TSS/Ib BOD5 Destroyed) = 0.75
Volatile SS Fraction (MLVSS/MLSS)= 0.65 1
Sludge Digestion & Storage Input Parameters
ADF Sludge Wasting Rate (gpd) = 42,750
Yr. I Sludge Wasting Rate (gpd) = 46,500
Target Percent Solids After Thickening = 2.50%
Target Decant Solids Concentration (mg/1) = 100
Sludge Disposal Cost (S/Gal) = S0.03
1 Sludge Drying Beds (10 @ 4,000 sf each, 8" depth)
3
I
1
l,
v'
26,668

\\,
TOWN OF MAYODAN
WWTP MONITORING SUMMARY
Influent
Effluent
Month
BOD5
TSS
FLOW
BOD5
TSS
Ave
Max
Min
Ave
Max
Min
Ave
Max
Min
Ave
Max
Min
Ave
Max
Min
Jan-99
92.3
233.0
53.0
163.8
750.0
40.0
1.291
2.003
0.984
10.4
18.0
6.0
11.5
40.0
! 1.0
Feb-99
100.1
193.0
62.0
190.21
1408.0
38.0
1.253
1.516
1.077
9.8
18.0
5.0
10.9
26.0
3 .0
Mar-99
86.0
183.0
50.0
184.70
1826.0
16.0
1.330
1.743
1.045
8.0
27.0
3.0
5.7
20.0
_
<1.0
Apr-99
59.8
98.0
38.0
92.95
318.0
43.0
1.460
3.007
1.256
10.2
26.0
2.0
10.4
80.0
<1.0
May-99
74.8
156.0
42.0
224.90
1146.0
28.0
1.496
1.802
1.222
7.8
28.0
3.0
11.5
53.0
<1.0
Jun-99
60.9
106.0
39.0
261.45
806.0
70.0
1.377
1.662
1.016
7.9
18.0
3.0
10.1
36.0
4.0
Jul-99
77.7
106.0
54.0
341.07
1351.0
42.0
1.230
1.934
0.509
9.1
19.0
<2.0
15.2
44.0
3.0
Aug-99
83.4
187.0
42.0
251.35
2394.0
55.0
1.431
1.928
1.291
23.9
98.0
<2.0
18.9
34.0
7.0
Sep-99
47.1
83.0
16.0
62.38
200.0
23.0
1.658
3.171
1.282
8.7
23.0
<2.0
11.4
56.0
3.0
Oct-99
52.9
74.0
29.0
39.86
100.0
12.0
1.503
2.070
1.074
2.8
7.0
<2.0
5.4
16.0
1.0
Nov-99
80.5
134.0
59.0
79.21
278.0
14.0
1.198
1.344
1.072
10.2
21.0
<2.0
13.9
24.0
4.0
Dec-99
63.2
112.0
36.0
86.95
961.0
10.0
1.107
1.610
0.534
7.0
13.0
<2.0
15.0
39.0
2.0
Jan-00
80.3
130.0
9.0
75.25
430.0
17.0
1.350
2.010
1.154
13.9
106.0
<2.0
14.0
64.0
<1.0
Feb-00
107.0
180.0
48.0
89.67
664.0
18.0
1.347
1.585
1.118
19.9
42.0
10.0
10.6
28.0
<1.0
Mar-00
136.8
231.0
70.0
153.61
543.0
34.0
1.201
2.229
0.898
15.3
32.0
2.0
16.2
36.0
<1.0
Apr-00
125.7
440.0
69.0
131.28
980.0
34.0
1.316
1.909
1.128
20.7
34.0
8.0
23.2
58.0
<1.0
May-00
196.4
465.0
70.0
164.43
448.0
40.0
1.193
2.343
0.698
41.1
98.0
10.0
63.9
130.0
<11.0
Jun-00
118.6
253.0
34.0
130.45
368.0
10.0
1.655
2.528
1.175
11.8
26.0
2.0
15.3
50.0
<1.0
Jul-00
49.8
114.0
22.0
41.00
189.0
4.0
1.326
1.608
0.870
5.9
20.0
2.0
2.2
23.0
<1.0
Aug-00
52.2
112.0
23.0
39.32
116.0
10.0
1.564
2.390
1.404
7.1
36.0
<2.0
9.8
22.0
3.0
Sep-00
57.2
128.0
29.0
52.50
164.0
27.0
1.757
2.511
1.450
5.8
19.0
<2.0
10.1
66.0
1.0
Oct-00
58.9
118.0
21.0
65.48
284.0
13.0
1.452
2.250
1.235
5.7
29.0
<2.0
5.6
18.0 1-
1.0
Nov-00
95.2
360.0
50.0
68.1
120.0
21.0
1.403
1.655
1.229
5.4
15.0
<2.0
4.0
9.0
<1.0
Dec-00
100.6
190.0
34.0
85.1
220.0
23.0
1.123
1.437
0.608
7.1
32.0
<2.0
6.0
25.0
<1.0
Jan-01
107.4
188.0
52.0
176.1
720.0
40.0
1.700
2.325
0.746
8.4
31.0
<2.0
13.9
35.0
<2.0
Feb-01
143.0
370.0
50.0
166.9
873.0
45.0
1.629
2.743
1.234
3.7
12.0
<2.0
7.4
26.0
<1.0
Mar-01
85.9
191.0
47.0
54.9
176.0
23.0
1.544
2.770
1.201
6.5
26.0
2.0
9.0
46.0
2.0
Apr-01
78.2
189.0
16.0
65.1
364.0
24.0
1.435
2.258
1.034
5.8
11.0
2.0
9.0
29.0
3.0
May-01
75.8
194.0
28.0
69.4
132.0
26.0
1.235
1.480
1.066
4.7
13.0
2.0
5.5
19.0
1.0
Jun-01
67.1
232.0
25.0
57.6
152.0
12.0
1.286
1.595
0.956
12.8
34.0
3.0
8.3
28.0
1.0
JuI-01
86.2
580.0
24.0
101.3
820.0
10.0
1.165
1.571
0.719
6.8
19.0
2.0
15.0
30.0
4.0
Aug-01
61.5
113.0
24.0
65.5
304.0
22.0
1.378
1.998
0.787
9.1
30.0
2.0
9.4
26.0
3.0
Avg. All 86.3 201.3 39.5 119.7 612.7 26.4 1.387 2.031 1.034 10.4 30.7 3.8 12.4 38.6 2.6
Avg. 12 Months 84.8 237.8 33.3 85.7 360.8 23.8 1.426 2.049 1.022 6.8 22.6 2.2 8.6 29.8 2.0

FM
loci
Mil
Mal
flEi
T1
MEN
rAcl
WI
WI
MEI
FM
lawl
ORR
MI
Project: Mayodan, NC
Engineer: MAD
Date: 7/22/99
McKinney Calculations
The following calculations are based on the activated sludge model as developed by
Dr. McKinney (University of Kansas), and applied based on the following design criteria:
Flow
= Average daily influent flow rate
= 1.50 MGD = 5,678 m3/day
Volume = Total volume of all aeration cells
= 1.50 MG = 5,678 m3
T = Design basin temperature
= 20 °C
BOD5 = Design Influent BOD5
= 220 mg/I
TSS = Design influent total suspended solids
= 220 mg/I
TKN = Design influent total Kjeldahl nitrogen
= 40 mg/I
MLSS = Design Mixed Liquor Suspended Solids
= 4,000 mg/I
Aeration hrs = Aeration time per day
= 24 hrs/day
WS conc = Waste sludge concentration
= 10,000 mg/l(assumed)
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1998
Page 1 MCKINNEY.XLS

t;1
rwl
fan
fat
Facl
System Parameters
Hydraulic Retention Time, HRT
HRT = Volume / Flow Rate
1.0 days
Solids Retention Time, SRT
The solids retention time, or sludge age, is calculated by assuming an initial value
for the SRT, and then calculating the associated total mass, Mt. Iterations are
performed until the total mass calculated by the program is equal to the design
MLSS. Therefore:
SRT = 24.3 days
Food to Mass Ratio, F/M
F/M
BOD5 loading (Ibs/day) / Total MLSS, Ibs
0.06 1/day
Kinetic Coefficients (As a Function of Design Temperature)
BOD Removal Coefficient, Km
Km = 90 x exp (0.069315 x T)
360 1/day
Sludge Synthesis Coefficient, Ks
KS
7/22/99
= 62.5 x exp (0.069315 x T)
250 1 /day
Page 2 MCKINNEY.XLS
Copyright Aqua -Aerobic Systems, Inc. 1998

MEI
Endogenous Metabolism Coefficient, Ke
Ke =
1.,
System Mass Calculations
Active Mass, Ma
tI
Fml
REI
r1
Ma =
Endogenous Mass, Me
Me
0.12 x exp (0.069315 x T)
0.48 1/day
KsxF
(1 /SRT) + Ke
292 mg/I
0.24xKexMaxSRT
818 mg/I
Inert Organic Mass, M;
M; = TSS x (VSS Total x VSS Inert) x SRT/HRT
1,710 mg/I
Inert Inorganic Mass, Mil
M;;
Volatile Solids, MLVSS
MLVSS =
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1998
TSS x (1 - VSS Total) x SRT/HRT + (Ma + Me)/10
1,180 mg/I
Ma+Me+M;
2,820 mg/I
Page 3 MCKINNEY.XLS

MLSS Concentration
Total Mixed Liquor Suspended Solids, MLSS
'_' MLSS = MLVSS + MI,
,, = 4,000 mg/I
`'.' Effluent BOD
�, Effluent Soluble BOD5, F
F
Effluent TSS
Eff TSS =
Influent BOD5, mg/I / (Km x HRT) + 1
1 mg/I
Expected effluent TSS from properly designed clarifier
30 mg/I
Sludge Wasting
Waste Sludge Rate, WS
WS = (MLSS, Ibs - Effluent TSS, Ibs) / SRT
= 1,685 lb WS/day = 764 kg/day
Sludge Flow Rate, Qws (Assume 10000 mg/l TSS from clarifier)
Qws = WS / (Sludge concentration x 8.34)
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1998
20,202 gal/day = 76 m3/day
Page 4 MCKINNEY.XLS

Nitrification Requirement
1
Influent TKN Loading
Influent TKN = 500 lb/day = 227 kg/day
Nitrogen Utilized as a Nutrient
Based on 5% of the influent BOD5:
Nutrient-N = 0.05 x Flow, MGD x Influent BOD5, mg/I x 8.34
, = 138 lb/day = 63 kg/day
Fool
Refractory Organic Nitrogen
Assuming 1 - 2 mg/I organic nitrogen in the effluent:
Refractory-N = 1.5 mg/I x Flow, MGD x 8.34
Nitrification Requirement
Nite Req'mt
Nitrification Capability
19 lb/day = 8.5 kg/day
Influent TKN - Nutrient-N - Refractory-N
344 lb/day = 156 kg/day
Nite Cap. = Ibs NH3-N Nitrified / (Aeration hrs x Ibs MLVSS)
x 24 hrs/day x Ibs MLVSS
1.1 At 20 °C:
0.1 Nite Cap. = 2,269 lb/day = 1029 kg/day
At 10 °C:
Nite Cap. = 1,132 lb/day = 513 kg/day
7/22/99 Page 5 MCKINNEY.XLS
Copyright Aqua -Aerobic Systems, Inc. 1998

Objective:
Design Data:
Mayodan WWTP, NC
WestRock Engineering
Activated Sludge Basin
Revision 1
To size Aqua -Jet aerators for an activated sludge basin.
Wastewater Parameters
Average Flow
Temperature
Influent BOD
Influent TSS
Influent TKN
Basin Dimensions
WS Dimensions
Bottom Dimensions
Water Depth
Side Slope
Volume
Material
Elevation
= 1.50 MGD
= 20 °C (summer, assumed)
= 10 °C (winter, assumed)
= 220 mg/1 (assumed)
= 220 mg/1 (assumed)
= 40 mg/1 (assumed)
/44' j .¢ v
= 44679 ftx I-4679 ft
= 110ftx 110ft
= 12.3ft
= 1.5:1
= 1.5 MG
= eaa4hert- l....n h c .%G c.
= 571 ft
Scope:
Aqua -Jet aerators will be sized for an activated sludge basin. It is assumed that the wastewater is
domestic in nature with an influent BOD of 220 mg/1, influent TSS of 220 mg/1 and influent TKN of
40 mg/1.
Calculations:
Hydraulic Retention Time
HRT
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1999
= 1.5 MG / 1.5 MGD x 24 hr / 1 day
24 hrs
Page 1
Mayodan2

McKinney Model
Refer to the attached McKinney Calculation for an explanation of this model.
VSS Total = 80 % (assumed)
VSS Inert = 40 % (assumed)
SRT = 24.3 days
MLSS = 4,000 mg/1
F/M = 0.06 1/day
Waste sludge = 1,685 lb WS / day
Sludge flow = 20,202 GPD (at 1 % solids)
The effluent soluble BOD is expected to be less than the requirement.
Actual Oxygen Requirement
The oxygen demand is based on 1.25 lb 02 / lb BOD applied and 4.61b 02 /
lb TKN subject to nitrification.
For every mg of BOD applied, 0.05 mg of TKN is assumed to be used as a
nutrient. Oxygen must be supplied for the remaining TKN.
rxcl
AOR (BOD) = 1.25 lb/lb x 220 mg/1 x 1.5 MGD x 8.34 / 24 hr
1431b02/hr
Nutrient TKN = 0.05 mg TKN /mg BOD x 220 mg/1
11 mg/1
TKN Remaining = 40 mg/1- 11 mg/1
= 29 mg/1
AOR (TKN) = 4.61b/lb x 29 mg/1 x 1.5 MGD x 8.34 / 24 hr
701b02/hr
Therefore:
AOR = 2131b02/hr
Field Oxygen Transfer Efficiency
FTE = SOTE x [(Cs x (3) - Cr] x 1.024(1-20) x a
9.09
7/22/99 Page 2 Mayodan2
Copyright Aqua -Aerobic Systems, Inc. 1999

rxR
where:
SOTE = 3.0 lb 02 / BHP-hr
T = 20 " C
Cs = 8.90 mg/1 (at 20oC and 571 it)
(3 = 0.95 (typical, assumed)
a = 0.85 (typical, assumed)
Cr = 2.0 mg/1
cop
FTE = 1.81 lb 02 / BHP-hr
Power Requirement
,0.1 Power (aeration) = 213 lb/hr
Mr,
1.81 lb/BHP-hr x 0.92
128 HP
A mixing level of approximately 100 HP/MG is recommended to provide
complete mix conditions.
Power (mixing) = 100 HP/MG x 1.5 MG
150 HP
rfti
This leads to a recommendation of four (4) - 40 HP Aqua -Jet aerators.
0.1
Recommendation:
Four (4) - 40 HP Aqua -Jet aerators are recommended.
MAD
min
min
7/22/99 Page 3 Mayodan2
Copyright Aqua -Aerobic Systems, Inc. 1999

r=t
124
Objective:
Design Data:
Mayodan WWTP, NC
WestRock Engineering
Aerobic Digester
Revision 1
To size Aqua -Jet II aerators for an aerobic digester.
Sludge Characteristics
Maximum TSS = 2 % (assumed)
Wastewater Temp = 20 "C (assumed)
Basin Dimensions
Diameter = 75 ft
Water Depth = 15.5 ft
Volume = 0.41 MG
Material = concrete
Elevation = 571 ft
Scope:
Aqua -Jet II aerator will be sized for an aerobic digester. It is assumed that the maximum solids
concentration will be 2% and that the mixing demand will control the power requirements.
Calculations:
Power Requirement
It is assumed that the power requirement would be controlled by the mixing
demand. A mixing level of 175 HP/MG is recommended to provide complete
mix conditions.
Power = 175 HP/MG x 0.41 MG
72 HP
This leads to a recommendation of one (1) - 75 HP Aqua -Jet II aerator.
7/22/99 Page 1 Mayo_d2
Copyright Aqua -Aerobic Systems, Inc. 1999

Field Oxygen Transfer Efficiency
FTE = SOTE x [(Cs x (3) - Cr] x 1.024( 1 -20) x a
9.09
where:
SOTE = 2.1 lb 02 / BHP-hr
T = 20 °C
Cs = 8.90 mg/1(at 20oC and 571 ft)
R = 0.95 (typical, assumed)
a = 0.85 (typical, assumed)
Cr = 2.0 mg/1
FTE = 1.27 lb 02 / BHP-hr
Oxygen Supplied
Oxygen Supplied = 75 HP x 1.25 lb/BHP-hr x 0.92
87 1b 02 / hr
As long as the oxygen demand is less than the oxygen supplied, the
recommended equipment is expected to maintain aerobic conditions and
eliminate odors that are related to low levels of dissolved oxygen.
Recommendation:
One (1) - 75 HP Aqua -Jet II aerator is recommended. The minimum operating depth for
this unit is 5.5 ft.
MAD
7/22/99 Page 2 Mayo_d2
Copyright Aqua -Aerobic Systems, Inc. 1999

WWTP Flow Schematic

EXISTING
DISTRIBUTION
BOX
-J
a
J
a
00
EXISTING
INFLUENT
PUMPING
& WET WELL
EXISTING
MECHANICAL
SCREENING
0
J
0
0
EXISTING
AERATION
1.75 MGD
SLUDGE RECIR.
EXISTING
AERATION
0.625 MGD
SLUDGE
EXISTING
CLARIFIER
EXISTING
CLARI-
FIER
RECIR.
EXISTING
AERATION
0.625 MGD
DRAIN FROM DRYING BEDS
HEAVY
w
0
W
SLUDGE
F
EXISTING
AEROBIC
DIGESTION
EXISTING
SLUDGE
TANK
idEXISTING
CHLORINE
CONTACT
EXISTING
DRYING
BEDS
EFFLUENT n 001
DISCHARGE. 3 MGD
Figure 4.2
Schematic of Wastewater
Flow —
Moyodan Treatment Plant
Western Rockingham County
Regional Wastewater Treatment
201 Facilities Plan
BY:
WestRock Engineers

] ] ] Mill] ] ] ] 7 ] ]
,
\ENG\DWGS\
FROM DISTRIBUTION
BOX
PROPOSED
1.5 MGD
AERATION BASIN
PROPOSED
DIGESTER
t 1
PROPOSED
1.5 MGD
� CLARIFIER
TO PLANT
EFFLUENT
PROPOSED
CHLORINE
CONTACT
1
FUTURE
1.5 MGD
AERATION BASIN
•
1
1
i
PROPOSED ,
SLUDGE
PUMPING
FUTURE
1.5 MGD
CLARIFIER
NOTE: ALL PROPOSED PROCESS UNITS
TO BE INTERCONNECTED BY PIPING AND
VALVES TO EXISTING UNITS FOR FLEXIBILITY
OF OPERATION.
0
N
a
2
Figure 4.3
Proposed Expansion—EDA—
Mayodan, NC WWTP
to 4.5 MGD
Western Rockingham County BY:
Regional Wastewater Treatment WestRock Engineers
201 Facilities Plan

LEGEND
• UNE N0. SYMBOL
PROPOSED YARD PIPING
EXISTING YARD PIPING
o EXISTING MANHOLE
• PROPOSED MANHOLE
•—•—•—•—• E%J511N0 FENCING
• EXISTING HYDRANT
• NEW YARD HYDRANT
GATE VALVE
—•—•—•— PROPOSED SILT FENCE
—' 564^" T]GST1N0 CONTOUR
PROPOSED CONTOUR
500
1 EXISTING COSTING INFLUENT
JL01/1 RAR SCRE3 O STATION
°546.s9
4o0
I
•
i 300
1
•
COSTING
D51RIB1R10N BOX
O
I 4H/2
sm.%%
I M 557.03 1
tN� 556.61 �
COSTING I
COSTING
AERATION
BASIN /1
SO2
INJECTION I % 0O
MANHOLE I, /
DUSTING EFFLUENT •
SAMPLER TD BE I
RELOCATED TO NEW •
CONTACT BASIN /3 I
EXISTING I
CHLORINE •
CONTACT I 100 .5
•
11N/11
NEW SO2J
FEED AND
SAMPJ110
COSTING
N.-Eoce or
GRAVEL
PA MLIENT
COSTING
FENCE X 0
COST- NG
DASD /3
20
PROPOSED
AERADON
BASIN /4
0
•
•
•
•
0
0
maw/2
COSTIIO
CONTROL
BUDDING
DIGESTER /1
p, 0,w ] 1
CHLORINE
CONTACT /3
EXSRNO
WASH DOWN
AND
PUMSAMPLING VAULT
COSTING
SO MAID RMER
12
545.47
100 200
PROPOSED
SUIDGE NO
ION
0
/3
•
G
20'
MI5 INV; 559
FUTURE
1 CLARIREA
•
PROPOSED DOGHOUSE
MANHOLE 2
RNElEY. /572.50
IThh 550.28
PROPOSED 00OHOUSE 'I"'ACT/2 urn VAULT Di DE* 672.3 •~•1•�.ti�
W/FLOW METER ON; 559.32
EICISTIPG
I /2 INNJSCFION
300 400 500
NOTE 100 YEAR FL000 DbVAIIOIO 371.00
LAYOUT PLAN
SNVF. 551.00
600
/
1 /
COSTING
SLUDGE
BEDS
1 1
1 1 1
Aa MINke562.90
700 B00
900 1000 •
GRAMM SCALE
Ws'41
1IW MIL
1 00
s
1
BOL
N OM
o ne
Imo ti0l
AI MOM
• G-5
M 17
F [ F f C f i E c a Mil t

t!I DISTRIBUTION Walt
f fil I1ll
100 YEAR FLOOD ELEV: 571.0 J1� 11 11
DfISRNO T-1 rpm---1 T--
WJ*$OU 111 J J � L1__NI I
11 I J J 1i i -rr -
JJ I
24' PLANT I I n a g 1I I 1
n1FUJD T —a i I I � J 111
Iet IIJ, 0I_J
11
o to
„D
i Il DOS7010
API IXIST0117
UPON c
assWllj�l /3
E
.JR42
I11- i 1.. II n 11 i
II
:11111111
L` .k. COSTING AERA,IDN FIASIIL CJ
Lf _at=
L --IT---cam -�/ III ��,,�
tic-- 11'DFJIEms ax.____1.L --I{�
PROPOSED
DCGHOUSE11
ILANHOLE
EXISEHILSUSGE
PIMP STATON
rr-
----_RmeueBIB aU1U1aa---
I
COSTING
WHHOIE
n
1
PROPOSED AERAt1ON RAM 14
VP M.
‘y s»ae l#P//)—*1
BM 75
» OAR aJA( MUM
'TT
LL---------Epp I''
J1 �L
-1-r
II
SIJIQSE
-�, B,
-n n-T
11 II II II
�1rw� 11 n 'L��
II II jj 11 /
I I 11 II l;�
"IJL• 1h*J.
1.
117/11
VY nJr. aaiaa CFTWINT
is
DEM
an Acr
m - T
II d II Il
----> 4
CoSTRio „; m WLI. IIPY E1211
Wilff// /L
ir
OOSIINO 1n % /' ' 114,0
MANHOLE /
tEI 1n �j -z ssas / 'MF
1 1 ,/
-----J Y/
ra. Mtu Eft er.0
.+..+. MI ..��, J MILTI 1
r� 1-• - F-71 Er----11 I I UMW new
J 1 II II lj Q_jj II 11L__ -u_ oar
__-�++ II —T T__-7awu+a p
DOSTIkO T`JL_troo__. =—C_IL. .�=
MANHOLE 1
12:1=01£-C211aL
B6SQLl2
rats
PRCPOSED
DOGHOUSE COSTING
MANHOLE 12 LAULHOLE
n
1 1
T'J 'It
IIMPL
11
r,----T-----r-
EXISTING
SLUDGE
DRAW BEDS
COMM
MANHOLE I
1.4 L L__1-=�==
N+asN—�'l
l 1L11L1J4J J_f_L_
I
°'w 140. 3001
ALL
Waft
OR/
oao
110.
n+a
as■ON
Wmr G-8
., 17
C IF lit t I ill

201 Facilities Plan Approval / FONSI

r
/ ••� Y
�f lr
>_ i
Michael t Easley. Governor
William G. Ross Jr Secretary
North Carolina Department of Environment and Natural Resources
Gregory J Thorpe, Ph 0
Acting Dcrector
Division of Water Quality
l., September 7, 2001
r,
P=,
ezr
Ms. Debra Cardwell, Town Manager
Town of Mayodan
210 West Main Street
Mayodan, North Carolina 27027-2706
SUBJECT: Approval
Western Rockingham County
Regional Wastewater System
201 Facilities Plan Amendment
Project No. CS370466-04
Dear Ms. Cardwell:
The Construction Grants and Loans Section of the Division of Water Quality has
completed its review of the Western Rockingham County Regional Wastewater System 201
Facilities Plan Amendment. The town of Mayodan's 3.0 mgd wastewater treatment plant will be
upgraded and expanded to a 4.5 mgd regional facility to accommodate the flows from the towns
of Madison and Stoneville, which will abandon their existing wastewater treatment plants and
install transport facilities so that the flows can be treated at the regional facility. Madison will
install a 1,735-gpm pump station at the existing treatment plant site to transport wastewater to
the regional facility via 9,000 1.f. of 12-inch force main. Stoneville will transport wastewater to
the regional plant by installing a 480 gpm pump station with 5,150 1.f. of 10-inch force main, a
620 gpm pump station with 5,280 l.f. of 10-inch force main, and 3,500 l.f. of 18-inch gravity
line. Stoneville's transmission facilities will connect to 2,455 1.f. of new 15-inch and 1701.f. of
new 16-inch gravity pipe that will be installed by Mayodan. This gravity sewer pipe will
connect to an existing line that will be replaced with 9,255 1.f. of 24-inch gravity pipe. The
proposed Mayodan transmission facilities will provide a connection for Stoneville to deliver
wastewater to the regional treatment plant. Madison and Stoneville will also perform sewer
rehabilitation/replacement to reduce infiltration/inflow (I/I) and this work will consist of
Stoneville installing 5001.E of 18-inch replacement line, waterproofing/regrouting/raising
manholes, repairing pipes that cross creeks, and repairing cleanouts; and Madison replacing a
segment of the Big Beaver Island interceptor with 3,0001.E of 15-inch pipe and 500 1. f: of 16-
inch pipe and replacing 15 manholes. The estimated project cost is $7,061,655.
12.4
Construction Grants and Loans Section
is -Mail Address www.nccgl.net
1633 Mail Service Center Raleigh, NC 27699-1633 (919) 7 6930
FAX [phone]
c f.
Customer Service
1 800 623-7748

The subject Western Rockingham County Regional Wastewater System 201 Facilities
Plan Amendment is hereby approved.
If you have any questions concerning this matter, please contact Mr. Larry Horton, P.E.
of our staff at [phone].
Sincerel
ohn R. Blowe, P.E., Chief
Construction Grants & Loans Section
KLH:dr
cc: Bob Wyatt, Town of Stoneville
Michael Brooks, Town of Madison
Senator Phil Berger
Representative Wayne Sexton
Representative Nelson Cole
Bill Lester, Hobbs, Upchurch & Associates
Winston-Salem Regional Office
Daniel Blaisdell, P.E.
PMB/DMU/FEU/SRG
Ft
Met
PRI

July 20, 2001
Ms. Debra Cardwell, Town Manager
own of Mayodan
9rWest. Main Street
a"od ,'NorthCarolina27027,2706
SUBJECT:
Michael F. Easley
Governor
William G. Ross. Jr. Secretary
Department of Environment and Natural Resources
Kerr T. Stevens
Division of Water Quality
JUL 2 6.2Un1
FNSI Advertisement
Wastewater Transport/Treatment Facilities
Project No : CS370466-04
.is to inform you that the Finding o£No Sign cant Impact (FNSI) and the
,en s nmental assessment have been submitted to the State Clearinghouse The documents wi11'
w�ad ed for thirty (30) calendar days in the N.C. Environmental Bulletin. Advertising' ..the
&;,r, equired prior to a local unit of government receiving financial support under the State
knng Fund. You will' be informed of any significant 'comment.
or public objection when the
ementperiod is completed..
copy of the documents. is transmitted for your record:. The documents should be made
available to the public: If there are any questions, please contact me [phone].
Since ely,
' Daniel M. Blaisdell, P.E., Assistant Chief
for Engineering Branch
t'(all cc's)
Winston-Salem' Regional•Officel.
•
ti•
bs, Upchurch & Associates, Bill Lester, P.R.
ofMadison,.Sharon Garner
c� Townnof Stoneville; Bob Wyatt'
:Sye�hafor Phil Berger ,
x T w
presentative Wayne Sexton•
'
bt , sentative Nelson Cole
x • •
e'+ + kA x (• k -i4'
� �7 '�i, ��ewa
toS'rj't? Y�1
Lrl +� L{r y.: ♦ �yi�r✓ {;R. S i 5 �`�, f f 11 } ,i
t *
l 'o Graff 5ec •16 3 5 W;CI:ee
FAX919-71t:r%n6 j"�",`. E MadAddies
�i
r,:rh'•?J`tt
+T'

rmt
ir
POO
Pin
FINDING OF NO SIGNIFICANT IMPACT
AND ENVIRONMENTAL ASSESSMENT
CONSTRUCT REGIONAL WASTEWATER TRANSPORT AND TREATMENT
FACILITIES FOR THE TOWNS OF MAYODAN, MADISON, AND STONEVILLE
ROCKINGHAM COUNTY, NORTH CAROLINA
RESPONSIBLE AGENCY: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT
AND NATURAL RESOURCES
CONTACT: JOHN R. BLOWE, P.E., CHIEF
CONSTRUCTION GRANTS AND LOANS SECTION
DIVISION OF WATER QUALITY
1633 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1633
TELEPHONE NO. [phone]
JULY 20, 2001

FINDING OF NO SIGNIFICANT IMPACT (FNSI)
Title VI of the amended Clean Water Act requires the review and approval of environmental
information prior to the construction of publicly -owned wastewater treatment facilities financed
by the State Revolving Fund (SRF). The proposed project has been evaluated for compliance
with the North Carolina Environmental Policy Act and determined to be a major agency action
which will affect the environment.
Project Applicants: Towns of Stoneville, Mayodan, and Madison
North Carolina
Project Number: CS370466-04
Project Description: The town of Mayodan's 3.0 mgd wastewater treatment plant will be
upgraded and expanded to a 4.5 mgd regional facility to accommodate the
flows from the towns of Madison and Stoneville. Both Madison and
Stoneville will abandon their existing wastewater treatment plants, and the
necessary transport facilities will be installed so that the flows can be
treated at Mayodan's treatment plant. Additionally, sewer
rehabilitation/replacement work will be performed by the towns to reduce
the am.ount of infiltration/inflow.
Total Project Cost: $7,061,655
State. Revolving Loan: S5,068,655
Economic Development Administration: $1,000,000
Clean Water Management Trust Fund: $ 643,000
North Carolina Rural Center: $ 350,000
Mitigative measures will be implemented to avoid significant adverse environmental impacts,
and an environmental impact statement (EIS) will not be required. The decision was based on
information in the facilities plan, a public hearing document, and reviews by governmental
agencies. An environmental assessment supporting this action is attached. This FNSI completes
the environmental review record, which is available for inspection at the State Clearinghouse.
No administrative action will be taken on the proposed project for at least thirty calendar days
after notification that the FNSI has beenpublished in the North Carolina Environmental Bulletin_
Sincerely,
Kerr T. Stevens, Director
Division of Water Quality

Topographic Map

Current NPDES Permit

I
• • •
1.1 State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
`=' A. Preston Howard, Jr., P.E., Director
Mr` Jerry Carlton
Town Manager
r� = 210; West Main Street _.
i:• k4 odan, North Carolina' 27027
•
Fal
roil
Purl
MIR
Owl
Dear Mr. Carlton:
January 20,1997
;ItTA
11::3 la HI NI Fl
Subject: '` NPDES Permit Issuance
Permit No NC0021873
MayodanWWTP
Rockingham County
In accordance_** application for a discharge permit received on July 29, 1996, the Division is
forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memoranduim of Agreement between North Carolina and the US
Environmental Protection•Agency dated December 6,1983.
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, Post Office Drawer
27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and
binding.
Please take notice this,'permit is not transferable. Part II, E.4: addresses the requirements to be followed
in case of change in ownership or control of this discharge. •
This permit does notaffect the iegai_req'uirements,to, obtain other permits which may be required by:the
Division of WateQuality Qr, p routs reguired.by the bi
rvision of Land Resoi rcesr.Coastal_ Area Management
Actor any other Federal or Local governmental permit that may be required.
,. • If you have any quest ons concerning_ this permit,: please contact Mack Wiggins at telephone number (919)
:. 7335083, extension 542.
cc.: Central: Files
Winston-Salem leg 0.'nal".Office
Mr Roosevelt Ch id
a Permits and Er giniie.$ 1.*it
Facility A¢�essn�e�nt' ��i�
;Aquatic. Suey.&,To..)ogy Unit
Sincerely,
Preston Howard, Jr., P.
•
'FAX (919) 733=0719
�n Umr`paper

fmt
'r •
Permit No. NC0021873
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
. • • PERMIT
TO DISCHARGE WASTEWTEii,l4NDER THE
• • .; • . :10.4Sp% ' '
)
.1!*1 NATIONAL POLLUTANT DISCHARGELIMINATION SYSTEM
• - •
• '• . ,:i'ls. ' ' s
. . .•
. ,
,
In compliaiiCro'iwith the provisiokoOsTorth Carolina General Statute 143-215.1;
other lawful gtandards and regutfitiiiiis.promulgated and'adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
Town of Mayodan
is hereby authorized to discharge wastewater from a facility located at
Mayodan Wastewater Treatment Plant
on NC Highway 135West
southeast of Mayodan
Rocldngham County
• .•
to receiving Waters designated as The Mayo River in tlieiRoanoke River Basin,
in accor with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, 11;J. and IV hereof.
This, permit 4011 become effective March 1, 1997.
•
Thus,pem4a9d authorization to discharge shall expire atpMidnight on January 31, 2002.
• • - •
; •
. • ,
Signed thikOk January 20, 1997.
•
•
•
•
1,; •
•". ;"•:.
•
wi§,194
By Authority
• •
, . , irector
'tY
nvironmental Mqqagernent Commission
, • •

Permit No. NC0021873
SUPPLEMENT TO PERMIT COVER SHEET
Town of Mayodan "
Mayodan.Wastewater Treatment Plant
is hereby authorized to:
Continue. to operate a 3.0 MGD extended aeration treatment plant •consisting of bar screens,
lift station; ;dual path aeration basins, secondary clarifiers, chlorination%dechlorination, gravity
thickener"s%"aerobic digester; and sludge drying beds located at Mayodan WWTP, NC
Highway 135 West, southeast 'of Mayodan, Rockingham County (See Part III of this Permit),
and
2. Discharge, from said treatment: works" at the location specified- on."tile: ttached-map into the
Mayo" River which is classified as Class C waters in the Roanoke RivefBasin.

SCALE 1:24'000
1.MILE
�.A- :•® . may :4®,
.PRIMARY HIGHWAY
HARD SURFACE
LIGHT -DUTY ROAD, HARD OR
IMPROVED SURFACE
SEOONDARYHIGHWAY
HARD SURFACE . 1=11111111=1 UNIMPROVED ROAD
Latitude: 36°24125" Longitude'79°57'56"
Map # BI9NW Sub -basin ; 03-02-02
Stream Class C.
DischargeClass 01:38'.40 50 55
Receiving: Stream Mayo: T('er
Qw: 3 0, IGD Permit ex' 'st:, 1/31/02

A.(1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31)
Permit No. NC0021873
During the, period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number
00i';;Sucti drschar as shall be limited and monrtored;by the Permittee as spi,3crfied below:
.�qq .� ..,.:� 3 �q f"`" i:Ai. < gg t ,�,�, a
"�6. Vg i. �. �?RR � ft�! �.la�pE.. •Jssaa�Frvr:. z d ��,r�'sc... f���-
"7 :..'+.fvN Y. k3xN
_-.:, Yy:.v. k dT•
-.-. ., ;..... a ,.< ase' E{�
• .. .F.....: --. �' " ` � • `
'WraS`•..assaw•...aewa..au,xi>.«� s�::,:wa.;r.-'..'eJ..'k;8.:sw`".�fnaadsIDu�u.<<e�4;.c.3bue1.�.:..:k=baa�n
sok i;'S.'.' E., . .. .:'
Fr
5 �4✓' �('
� . • � •�;.. ¢„
r .'
k •F T"'P 1
1 '
if.."1 iota. .9 ,.•:1w�.".8X
a,� `� � ' , 6
: s's s<
"K a�s^G f..t
�'.✓..�N
3t'.: s ^:':.- »Hf
: ..i 3 1 � Q�11�
ug� ,.,✓A1i.. {{ f�`' j
Sr
:..skier •
�,�tl;I; EMENTS,�,�,
Y. r *[: i C.4
�• f3t;'�.^Qgs k '"'� ;raN s�
R�`,.r.1`7�rv<yt>.:w
..r
w ,P (� tA � <'� G
.�c .a
..,`�.
q �,,� .� �"�
F VIU
rn�1•H ,S
a ws
, .. �fUN'`i
,F:. �. ��n�'
�r3�r,.�e
yrcyr
f ��.H .: ' Y/1fr .
�,'•:. ^ens"M_.• .3. •.,%<
,..
f': r- (.}, �,i'..,
.>,r:�1��Ci�Y��:'�'
F1ow....y>� .: , .- :.--3.0aitAG'DII
r_
, - f i 4r .
-
Continuous
' - Recording
I or E
BOD 5 day,-.20°C 2: '
30:0=m03/I
45.0 mg/I ;
Daily: -
Composite
E
}Total}Suspended Residue z'
=30 0 xii Jl
45.0 nicJ
• Daily:
Composite
E
NEI3'aOL .:.__ 1':.::
=14:0tn /i . -_
. :-ix;
.
Daily:
Composite
E
Dissolved=Oxygen z: :`
-
Daily ..,
, Grab '
E, U, D
fecal dlifomh tre—dnietriernean)
200/ 100- m1
- ` 400/ :100..m1 --'
=
• Daily:' •
Grab
E
TdtalfRetido'a ehloriii .. , : - -::--4
:
1, . 1
t ->r -o� i. ,,1:
_. 28 u9/I
-:7 Dadys -
Grab ; "
• - E
, ...
,,,_ .,. r,
..
Dal -';
- L.:Grab_ _ ..-
E, U, p
=p114MM":" ....-:2 :<-•, _.- ,- - ,
Temperature'•
j
Daily
Grab
E, U, D
Conductivity'
Daily
Grab
E, U, D
Total -Phosphorus
Monthly
Composite
E
Tota1Nitrog'eriITKN .+ NO2 + NO3)
Monthly
Composite
E
ChronicToxicity-4
Quarterly
Composite
E
Cadmium`
34.0 µg/I
Weekly
Composite
E
Copper-
2/Month
Composite
E
':Cyanides....: - ..: ... -._-
.
2/Month-
: - -::-J Grab _-- -.-:.
E
:Leads ,.. --.: =: -
... 1
• .
2/Month,.
.,.,Composite
E
Mercury
0.21 µ.g/I
Weekly
Composite
E
Zinc
2/Month
Composite
E
Notes:
Sample locations: E - Effluent, I - Influent, U - Upstream at NC 135, D - Downst7:3am at NCSR 2177. lnstream samples shall be grab samples and shall be
conducted 3/week during -the months of June, July, August, and Septenber.'and weekly during the remainder of the year.
The :monthly average; effluent BOD5 and Total Suspended Residue conc.i:nt;htions shall not exceed 15% of the respective influent value (85% removal).
i
The pH shall not be less than 6.0 standard units rior greater than 9.0 standard units.
4 Chronic Toxicity (Ceriodaphnia) P/F at 6%; March, Jure, September, and December; See Part III, Condition F.
There shall be no discharge of floating solids or visible foam in other than trace arr ounts.

A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31)
Permit No. NC0021873
During the -period beginning on: the effective date of the permit and lasting u itil expiration, the Permittee is authorized to discharge from outfall(s) serial number
001. Such; discharges shall be limited and monitored by the Permittee as specified below:
} At e , �
: .:.. iM
•�' ciw:a.� F" i '.. r .,M
i ^': y�ri.: : ✓> '''�'1R
`�... ,. d'... Y :... 3. .. ;2:..
1k ' • ..
:gym ,•:<
".'Mww..x r3:
< �'.�7..
'� ..73-
n w., rV-Y .kw
� �..,
wi... !.y .,.-"S"tK
i7`..'ai nk wv�k.: :2..2 zw
5 "S-,3.,t ..�-'c•
"YYS '•` Y:
Kt
dRS
2Haz irir`"...�M::ba"ws.YhWw'i£�5�q
bra z^<
'�� y ��
� r
E
..`� x ,,'':"
•fie.� �/'4':/x'
, i :u'
�� �5
4
�F i. a�rd
1•y � k,�'
. S }ice.
b U%iPI
Flt'
' N "R�tU..1 EME
.�:5. 'a">
F'• 'S.'%`�'3�y
X�
N TS
{. ;�^1� ,1.,. �Y.
..
a
/''I� v1N
.acairio ..:.
ibi6yw: 1 4 -'
1:-t g
k:,
.ti3'1V1G,n_PN.
Virtitike-
...D
,: _.
- Continuous , x
Recordmq
,;-i
" .
I or E
130D7Sdal4tre, -' -
-.
=,t-'`3O(1rht/i
-s--245.0: mg/I.:. :
i
-
.. -_Daily =.
'Composite
E
Total -Suspended Residue 2
30.0•mq/I
.- 45-.0 mg/I •
Daily, -=
Composite
E
--NH3_a.N - .`_- _
3/Week
Composite
E
=Dissolved`Oxygen:
_ i ;: _
Daily
Grab
E, U, D
Edda-fGollformk(geometricmean)
200/ 100 ml
400/ 100 ml r
Daily
Grab
E
Tofal lR'esidual-Chloane ----
28 gg/I
Daily-
Grab
E
F{ g,,^:;: ,�- - , _
_ _ _ ..
- r
Daily,-
p
Grab ..
E, U, D
Mem eratvre :. .
P
�
Daily ..
-Grab
E, U, D
Zorilli tivity - -.: _. .:.
- =. ..
.: ' _.,
: - , .:-
:.
: _
:Daily-', ..
-
, =-Grab
E, U, D
Rtat Pf dspionis t _ ::.
-
Monthly -- _
,;. 'Composite
, -
E
Total:Nitrogen°(TKN + NO2 + NO3)
Monthly
Composite
E
Chronic Toxicity 4
Quarterly
Composite
E
tCadmium
34.0 gg/I
Weekly
Composite
E
CPPer;
2/Month -
Composite
E
Cyanide
2/Month
Grab
E
Lead
2/Month
Composite
E
Mercury
0.21 µg/I
Weekly..
-. : Composite
E
Zinc"' -
i
2/Month
Composite
E
Notes:
1 Sample locations: E - Effluent, I - Influent, U - Upst:Fam at NC 135, D - E' nslream at NCSR 2177. Instream samples shall be grab samples and shall be
conducted 3/week during -the months of June, July, August, and Septem er, and weekly during the remainder of the year.
2 The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal).
The pH shall not be less than 6.0 standard/units-nor greater than 9.0 standard units.
4 Chronic Toxicity (Ceriodaphnia) P/F at 6%; March, June, September, and December; See Part III, Condition F.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
1 1 1 1 1 1 i 1 1 1 1 1 1 1 1 1 1 l 1

MI •
Part II
Page 1 of 14
J1
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
5ECTION A DEFINITIONS . •
Permit Issuing Authcjiity.
' •-• . "
. .
•:-Tiie Director of the Division of Water Quality. • •••
•
• • • •.;
2. - pEm or "the Division"
Means the Division of Water Quality, Department of Environment, Health and Natural Resources.
•
3. EMC • •
. .
•
. Used hereinMeans th North Carolina Environmental Management Commission.
4. Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC
1251, et. seq.
5. Mass/Day Measurements
• ..
a. The "monthlysay.eta:ge discharge" is defined as the total mass of all daily discharges samplea
and/or measured during a calendar month on which ilailyi:.*.ciischarges...are sampl&Vand
.,
measur.edldiyidAtiy the number of dikOdischargeiSaMpled"OiCl/or measured during such
month. It is -s.re, an aritiiirietic,mean.fbund by addmg theweights of the pollutant found
each:44*L-0 " ivot*
of days the test.' were
. ,
reporteciv,fThe _ is identified onthly Average" in ait' I of the perriiii. •
b. The "weekly:av, discharge" is defltedas the total mass of: all daily discharges.- * ' led
' • the calendar,weE•
iiiiiitiber of daily aichatgeksampled•-aiiii bi-' '- triariiiied
and/or ' '
(Sundayi- Saturday) on which daily d . '. are
du ,
.4.It is, .thfore,... ; tic e '.r.,4* " t by, addingqIien ,w1,, of
mean, .0
• flab* of ,.
en diviairiithis.' 4' -by the nuiiibeilitr- the,
tests iv' bni , . .,-,... - .- -4-5
as "WeeldrA.yekage" in Part I of'the.pnit.
.• 1.• ', 'x'
IC:. • The:i.
--,;
Their
• • and/
•.
•
•
mass (Weigh09fAVINtant dlscl gdt,d, g a
*mg any c40c14Y:the s nt
y!..01scliarge." This IIMItifition is identiffealaWmilly
s the total,
YA1';Ofl.W11
...1 iarge
y - ,.„-,...7„,-... 44'; t
mid
rgeal
:::::-....,,..!:
o!,,,.,:,......,
or,
..11 . . .4„..,..,,,,,
:p ,
tests were: i, 1,::, .:. .„:, . I', .141, -• i, i, :.:•,,,,,,k
•
*- : .. r .. , •• 1 ', . -

Partll
Page 2 of 14
6. Concentration Measurement
.••
a. The "average monthly concentration,other than for fecal coliform bacteria, is the sum of the
, _.c9rtmtrAti,ons.,pf.,agdallyodischarges, sampled and/or measured durinKar calendar. month on
which daily discharges are sampled and measured, divided by the nuinbei, of daily discharges
..
sampled and/oineasuled during such month, (aritlunetic Mean of thedaily concentration
• • . x ..4, • .••• • • . ' •,••• • -.• - ,IF•exost..-- J - • • • • , : ttr• -‘..s., - • •
.,,..lialues).k".,1116 daily concentration yal.tieis_eqUal to4,•the.concentratiOn of a:composite sample or in ::: .!•••
• •••••,•••• • , ,,;s•,..A1'. 414 14.240'.1 ' r'qe •44P : q.,-"4 e a .. .tTtit, 0,qe- 7 n . '-.•• • ' ' • • • • . , • •
tite case of grabomplettjklheantlunetic mean. (weighted„byi flowt *Wile), of-411; tlie samples:
--,:-...-,..c.-.?,-- _ . . .,••_. ,....:..,..,,. ..,
collected durif,n1,,. that calendar day.41eayer agsmcinttuy, count for fecatcoliform bacteria is •,. .
thei moinetricean, okthekcounti:. foik„L'iamPle0Collectedbliiiinz, i.!'caleiidaiirittoiiiiii-;‘71iiaf''''.•.'"..-
..-1- ,.. ..... ....: .., . .;rs• . • .1, 4.,..,.: • • :,.t., ...'..a.0.4 , PI. . • .% • fo...1.• t..,..• .4 - •.• I A rt.7---,..1•!, • -,,r. ,...,..- - - - - .. • , .., _ ___ ________ _ , .: _ L.,. . ' •
hirdiatiOn is identified as..41Montliiy 'yerage" ' 'dal; "()thev—thi'iltin iiit#iii the.40H......% • '''''
uti
...' :: ----:: ••,-..tt---K,x.••:,..,•••,.. ,..,..14:-.:..,...t. •••• ....i....:44„,•vx,...,........ ..; I,. i ..s.A • ..1,.. k....$1.....,„ .-.--,,. .:. . f.., . f , ' . _ i of permit • '
•,' ti iifi: 11,..:-_ e .:: •:. it'. ,, .. .:,p!, ' 3*.:,. ; ..,.. . ... -
,•...kt.1,•.,:--'...tp,•...-..--. \'.- a$','.*. ,.... .,1 .:,,,f .• Sk. • ' : • •
1 . •I' •-• • ,Y
b. The:: average weekly thanco#centration,";Othex.,,,tiqec.al colqorm.baCterik,is thesum of the
concentrations of ?dAtiVircliic.liargeS:fsalitiiled‘qtd/or measured .di4Itig.-a calendar week ..
(04Ciaii§ittiioitfr);.61fSkTItich •••daily.:, disMarges* sampled and 'meas.z ; -..',...4o:04.:ditrided'; by the
number of daily dlintd0 iiiicticii,fiiecii*ect during such week(iritlintetic mean of the
diili-Oikeitt.ratiOn 'ValtieW,f;glieslaily:cOneert4‘.411On;value is equal .tii",•tiiidincentiation of a
composite sample or in, the case of grab -samplesis the arithmetic mean (weighted by flow
value).,of all the •sainpleti;,,COlected during that calendar day. The average weekly count for
feCal.,coliforrq bacteria is the geometric mean„of the counts, for samplew...collected during a
calendar week This limitation is identified as' "Weekly Average" under ."Other Limits" in
Part i:•9f the pgirill .,...,......;.• • .
c. The s'maximum.d4ily concentration!' is the concentration of a pollutant discharge during a
dar.',day. 1,,t If : only' oneit'sample4is, taken. clUringi any calendar daythe concentration of
..wi• • c•;.,-Al... 0 ••••• C.74461,, 44,4.0. ' .t.titliqn1': ' . ''. ' ' . ..fi:;1.1.1 ' ' '. 4-"‘ . ' : • . •• •
..
plutint. calada4,4 fronte: the,:i'Maxiinimi, PaifY: Concentration". '.1. It is..identified as -"Daily
i • 1. -. • .
d.. Tite„.„Taire.ra
ft Ft0. 1.• f•••-•,;` Ki*
e.
• . g.1,1••••‘.
Mmamumt! underp. "Qther 'tsl. iitlPiirt I of.thelleprii t.
• • ••
„ • •'' '
•
co 1.4 fecal, coliform bactiiii,a): is the sum of the
• ...• ••
ict
!: •
.,. • . • t;.,.‘ „i '•i• •
• • 1- • , ‘•
•
,. ,... „• , , _
'Cla disdkaizeil ledt tor measureddtirlit , a -calendar on
tp;s1tr,..,0474, if.?,./ g.:-;•-•1•E • .,. • ....r.1,•:•:. • .o, , .1, . Ili,: . •ii ' l'aliaiii, '
Ili, , • * dem byi uteFntun or mug. ges .
tic, 'ream of - dailrconcentration
goricfltlragOn of al., site sample or in •
'
'1 • • , . ". '
tl*ams- 1
countionfecito5 • . ••
•
• :•••.•:•i:i. "-0,31,,,
a;
4 t
!In:bad:0:4*LT the
144.1110ilari°i1 LS:
111410..
'
•
• •• .. i.e.. • •
.•
. •
• .! t •
•.." :r4;1;t
• I j • I • .1 ;• IV:1;r • •
(*fable amount of
2over a
is •
• Y
enti
44,
Oiloirep.ar0.0c1ar:i
I of thepeith1t.
,throuii

I�1
Partl
Page 4 of 14
1214
r=1
fl
•
5BCTION B. GENBRAL CONDITIONS
1. Duty to Comply •
The = permittee!='must, comply with'\Yall conditions of this permit. Any permit -noncompliance
constitutes a violation of;,the Clean titer• Acts and is' grounds . for enforcement action; for permit
termination, `revocation and reissu- "ante, or modification; or`denial of a permit renewal application.
a. The permittee:'shall comply with:effuent standards or prohibitions established under section
ean' a'•te Ac( xi pollu•
ants`,an j
isludiifde 4.. d) o
10. Calendar Day
A calendar day is defined as the period from midnight of one day until midnight of the next day.
However, for purposesof this permit, any consecutive 24-hour period that treasonably represents
the calendar day, may be used for sampling
11. Hazardous Substance
:•r A • hazardous substance means any substance designated • under40 CFR Part 116 pursuant to Section
e � �F.'v , ,Y Ll 1 .rt c ;c� . r.
i 311'of the C[' IWater'Act�x ;� . � ,t�rat� 3� :. :1 . ,... « - .4. • , s • ••
• •'-'1"..
, : , �., ,f. , .
. 1•. C.J•r,t t '�•, ,Y ? 2...�•'+ :" r1.;? l,:l 113t 1 r♦ x ", l• - + a=.l
12. Toxic Pollutant,., , ; .. u :9 s4 _ , no r
' !•.(!..r - 1• '.! i. i:[,� ,,'�}.1 "��. •r 1; •/41.P,Iiii ..'••. et. •(, 1 .,...iLt. i•� a'••
• .w,.:;i
7i •1f{I -
• A toxic pollutant is any pollutant listed as toxic under Section307(a)(1) of the Clean Water Act.
•
307(a) of Attu Cl
d 1teRI b
the 'r
iSr•= _` i �:r• a �f m•:
egtila<
use or
vio
.Ulder sty
array._
standards for sewage'sludge use or
f tlie' '' ,WatYYe•r. Act within the•tine!`/ rovided in
tort prro i pits' or standards Mae,. vfage: sludge
' to incorporate the reuirement
a permit condihonyis. subject to a
•ion: Any' perm' 1hor"neghgently
et` of • $2• 500 to`-$25i�,0 O'4�p`errday of
th. Any person.;who' knowingly
of $5,000 to *.r day 'of
Also, any perms -irirlio' Violates a
to' e ' ' ` '$1Q 1,o,';• "t '`:vi aation
of 309 �of 'a►1° Act 33
ou. ($1d :violation
act in• aecorda nceih the terms,
' 15:6A]
,e';Adikdnie
•�. 1:tcone
•
der section' •
77
•
kcli rvfolating
:,oP umtafion
of the: Act.
icon: with
Class
z. dr. i. e: violation
�;i
•

Part II
Page 6 of 14
10. Expiration of Permit
: - . i• • ;-
Others. information 4ested;byitItif-PerinittIStiting
Auorty• • .
-
'1?U-
A
veort ' 'authoriie:ct regfesentatitre of
that • .
•
(!),:• ,r I • It4
• (2) :Air; • 44
.ot • -vzdual�ra)
• .1
! . ;•7:1 '41,•-•
>t,
lir
L: • s Vie if'*' I - '• 4SI .4. •
3AA-0 •
, on
fr
(3)
•
ri
r
t' • • .
Ye;
"F.
L�rity.
: •
for the
lant
ent
:161
ai• or.b.: pi: *Ills- sectiote:shal 1
, ' • ' .• • .10.4j.
rk '' . • r -qi:,ki.4-,z,cl`". ' Li:1-Acl.,:r?
...-1 ' '' - 4 • ;',,;11:;:,f.:
,.. ;.....
I — '-'tswere - • . -.under
, u.'• 'lir ,.,:•.....-,..:i -.,;.'* .,
• ?..., ru.k.• . -to ' e• .0. ed
• ' f.';''';
" •
• !!:'e".'.**;:1;:;:i•!..-4,
• 1:
• ;
•;.;::•••
the,
false
, .

Part II
Page 8 of 14
Rwl
fail
•..-••/y.+vc t..�rt} .�,�-� �.i i �. .�';. A i ��I�{f�.=si sf.i �a{Li1: t�4?4ti'.':t ` ':�' r eK� '� i :i: �•: '7•`Y"� i 1�: ��r��• •�lM ���•
T 1 '4 r
• r .
of Treatment Fadlitiesir .',.
•
a Y Definitions
•
rL:• f:- "•"y•. t� _ : r�. i r ` s.r ;� pJ'tr:'�
•
1): "Bypass" means the known diversion of waste streams from any.•
(2)
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 orderto maintain compliance :with the condition of this
44 1' •:` Yrc r �`., .,. .-+ tifft Erika
• •
+' ---r
collection syste
cl•causea
�ES means
> •:���` ` treatrnentj a, t]
i. Eat l f!r '•-..,,v {•M r' I..n..M,tc v'i e: fr.. eL.r a .. K
•loss of natural, resources whi can
bypass. ' Severe . property damage
production.
•
fir{. I:!sl 4d ' .0
rtion of a treatment
m,• whic}h is not w lesigned or stabliished or operating
Substantial: ph` 'cal dazMg•ej toj o: `'dame a to the
.etc r •b» v-..� ��• t.:.g
me inoperable; or; substantial' and permanent
reasonably; be expected tatoccur: in the'absence of a
'does not mean economic loss. caused by delays in
b.. ]Bypass..not exceeding) mitations.
t� ii:r i �� `, Yjl(l7Y: �t r
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. effident operation. These
bypasses are not subject: to the provisions of Paragraphs c. and d.' of this` ''setion
(1); Anticipated*by .pass: If the pernuttee kno*s:in advance of• the needtfor a
submit priori nail a if •possible rat least ten •ys before the date of<t i+
evaluation: of the}aitW tldpated� quality°ancf" e vvass.
required-i�i
d.' Pirohibition ofiBypass;
of
sr:
notice).`
c. Notice ;
idlity, includ•
q fort the;
pass it shall
,tit"cludirigan
fifinfintidpatedk•bypass as

Part II
Page 10 of 14
SECTION D. MONITORING AND RECORDS
. •
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be characteristic of the
,:avolume and,;,n't.tuye of the permitted,disc.harge:..., Samples',collected at, a .frequerilesi*than' daily
shall b"ei3Oceilion: a day and time t1at is.F.hatictiristiii-Wthe'dischairge oveirthere*irelieriod.
• ,. !.* • • • •
; • .
whicktheiiiin—ple be: taken. at momtonng Poiri ed in this
permik: andippless otherwise Speanea,, before the„ er uent joins or \is ; dilu any other
IvastestreamAr• body of water:, or gecri/ithout_
. • •
notificatlgnito and the approval othe:Permit Issihig'Authontyr.k. •
. • ,- . -
2. Reporting
, •
'V4,044104 C4P:Y#01;#1091.i.* IT,c.411(02:1.:110 be summarized foeath month and
(DE14 NoM11, 11; 2;i 3) or
0tet4ti,q9ri*siapprD4ed.i bYtilieliDirestor, DEM)' i5ostmarked no: later: thirrOt' the 30th• day
• fOlkowingsthettoinpleted'rePorting period.' . • • .'• - •
The first DKR .ts. 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:
3. FlowMeasureipnts •
APPIPPri!f.10tiv
shall be se1eteds"-
:Division otlity
• Water; quahty4Section,.,
,,,.13•A. ITEM'''. Post OfficeN:Ctne53.141iles
Raleigh, North% el 12762641535
•
measurement de.y.ic'es. and rnethods
d used to* accuracy arid 'oemeas.
•• t•
• -7
Otific practices
volume of
0 the 'a ; of. device.
qiri
4.T
41;the'•E0
'
:•
;•. .
• ...,,„ „....., i 1
• _.02.isl.c..'1
.1 ,‘.il-ii 'ta. '
...,.. t: 4 '?'... r..--cE:- ,---,
c'l
• -
thatthe
• "
111;1 cx,,2"t"
I . •
ugh
edin
to this
u 1400
tiOns
produce
the
r e'll.)41 'Ig :if
44
' iltlfr' 'c
fectiontind
n,1 AI,. • •
r"
0-4
!ml
fl

Part II
Page 12 of 14
SECTION E. REPORTING REOUIREMENTS
1.. Change in. Discharge
. t •i.J: '. 7 ��.Y �,7 j . '�h•"ri rv': 1 r 1..-�'•.i� - ;' f
1
• • this Permit
�- • �rAll: gesl autho��,zed herein: shall..be consistent with the terms'�and' conditions 'of
,,i'he. '': _ _ .e of an pollutant identified inrthis permit more frequently than or at a leiieli in excess
,� , Hof that autho ized sli ll:constitute a violation of the permit. �;skf"�x'f• Y Ti*z ;�:� �lf�ia- `•" =�+, �Y;`.
,1 _
j ', `i1�+d 'y.r«�'�+,�,,[}/~'�'j�,�• `k •rr+ t• r'' -pp h4li,�a, 1, a�(2p..�.4� 11 ( 1�'.t; ¢i' ..' �7y;'�.. Sr, :.iit'C [•yC41,,rj�• t,
i tf,..�O rAF„r�M�il fi 1.5 i'it • . ,. .. . . r 1. •riNF�i.h4 ii.E f' i JL i J iti y . are t"1 1 �a ��
•
',a ,•1 1Pa ned �Yl g r•-4,6 (�: • . -3.. ..r...y.tt;j•� 1. ?.`�.lxis-.'d1;-' ,..,. i. as -:i.f t; ,.4IA t.i a1 :j.�•:Fi L�•,�t� c,I� i. 1y..1 Yg•I
•
permittee: shall,' give. notice to the Director as soon , as. possible of any planned physical
{ ;f• Iterations or. additions to` the: permitted facility: r• Notice is required qoiily: when: °: or't a, ';'' '
may, • �.
' The alterationoaddition toa permittedfa ' ty meetoone!oif the criteria:for de •
term+
ining"whee"4;'t�a.rz""1"�'" isranew..so..urce: .in40CFRPat122:29:(b) rrice."l►.'•f �~tz.`e.e f�.
.
• • b. The alterationoiraddition- could: si '• icantly change
' the -nature; or increase the- • anti of
llutants' 'discharged. This notification applies to pollutants, hi ' neither , g pp po ts• which are subject neither to
effluent limitations; in the permit; nor to notification requirements under 40 CFR Part 122.42 (a)
(I).
;. c.: , :The ,alteration; or: ,addition. results in, a significant change in' the permitte e's sludge ,use or
disposal practice's; and such alternation, 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`s or not
reported pursuant to an approved land application plan.
ticipated _• Noncompliance
•
Fgive advance notice to:the, Director of, any pl ; - ed
`or activity whhIcch may result in noncompliance'with petrni? uirem
it.Transfers
x=
Rol
•is is not: transferable to any person�exceptt aft er notioeao tl e D rector: �11
Ij ratio. � revocation:and rgis. ance;:of,tne :pe 00,004 uicorporai
may lnecssary; under the:Cliaii Water Act
:et:theliittervals: s
permitted
•
fD. 2
•use
st
an

Part 1I
Page 14 of 14
Persons reporting such occurrences by telephone shall also file a written report in letter form within
5 days following first knowledge of the occurrence.
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
pubhcIinspection at the offices of the Division of Water Quality..As required by, the:Act, effluent i;'`
data shall not be considered confidential. Knowingly making any false statements on any: such '
report` may result in the imposition of criminal penalties as provided for ut NCGS 143-215.1(b)(2) or
in Section 309 of the Federal Act.
11. Penalties for Falsification of Reports •
The Clean Water, Act 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 $10,000 per violation,
or by imprisonment for not more than two years per violation, or by both.

Iwn
' . PART III
OTHER REQUIREMENTS
A. Requirements for Control of Pollutants Attribute to Industrial Users4
1. > Effluentlimitations are listed inPart I of this permit. : Other pollutants attributable- to inputs
fromin ustries using the•municipal system.,may, bepresentin the permittee s;discharge. At
such 41t ,as sufficient: information becomes• availableto: 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:
s rJ
�• R c ': t y •r '
Under no circumstances shall the}}' p�irermittee allow introduction • `of the following' "y astes -in the
•.iir'�.1.A 1•4.• i... c'i••! f+.le...44,*'.'• .t;.0 .'.•-4 .• `�•tt�p!f• .t �: ''�;
waste treatment system:•'. • ° 1'
a. Pollutants which create a fire or explosion hazard in the• POTW, including, but;not limited to,
wasfestreams With closed cupfflashpoin �' ` ` •<' • a reit'A' _
�,y� t of less than 140 degrees Fahrenheit or 60 degrees
( '1'i_f!.,64� S,t '�r.�iF the �'' N.. r.._.?,� fir .-. !. .t �. � t� l.tr»'•-r {-. +jay•
; Ceiltigiade usuig test meth`l ds specified in 40 CFR` 221:21;• - . . j1!.-. . , r !
ar. .. � �. •
• Pollutants,�wvhich= will cause corrosive structural•' damage! to -the POTW, but' in no case
Dischiarges with pH lower than 5.0, unless the works is specifically designed to accommodate
such Discharges;
c. • Solid pr viscous pollutants in amounts which will cause obstruction to the flow in the POTW
resulting in Interference; . ,
d. • *Any pollutant, including oxyge demanding pollutants (BOD, etc.) released in a Discharge at
a flow rate and/or pollutant concentration which will cause Interference with the POTW;
e. Heat in amounts which will inhibit biological activity in the POTW resulting in Interference,
r*)
but inn() case heat in such uantities that the temperature at the POTW Treatment Plant
exceeds .40°C (104°F) 'unless: th'e Division, upon request of the POTW,; approves alternate
ram, temperature lunits,
r t `gr j cutting oil,,or products of mineral oil. origin in' amounts that
f. Petroleum` o1I, nonbiode adab `�'
.i'' { k' n • tut
will cause inter'ference'orpass,'through;
Rim g. Pollut is which result in the'.1e enc•e oft xi gales/vapors,
�`� �+Y' o c or fumes within the•POTW in a
tLr4' '1 ''f.7•C��'.�.aAjiet - 11i -}�''t.�:w�ayi r;' ,y.,.� •?
quant ty,thatt may{ ca , 4,.. er health'and safety problems;
h. Anytr'uick"ed• or hauled pollutantk';� except at'discharge points' designated by tlie'POTW.
3. .:With regdttolthe• effluent regt}lreinents• listed in Part I of•this permit, it' stay belnecessary for
,.the-pe'- li�eeto;supplel*ient�}the.. uirements of the Feaera1Pretreatmehi'Star fards (40 CFR,
.Part:4O.3)4tOensurecorripliance;b''?the permittee with all- applicable'effluent limitation. Such
,_, „ action0,; 'e+periruttee may!be,t essaryJregarding•some-or'all of. the`ind}istr�` gdischarging
'to tfickin ' ip al s stein: x ,, . ,. • , . ;, . •, •1:.;: ,
� y
SIR
4. _"eer shall'reuu any
►astewater f Onl.an
t,torthe Di ipn,
rf '
The. pert
Pretre2
accept}
atd.su
,.
its',trial discharges. intothe Permitted systeper tZ meet Federal
ted in response to:Section' 307(l)iofthe/ ct... Prior to
uficant industrial 'ti erk thepern ttee siall;. f bier develop
'tment Program for approval per 15At NCAC ..R.0907(a) or
dram per. 15At.NCAqr2I H:0907(b):;
e ti %e�'` Progran „or: to I nit"ol� e•ra�`compl leis e', for the
.0 ��`e it: Pro/g}'y�am is re�iui 0d-unders�S hop '1 8)°o€'the
-{F .?„?�r+,�j` '• !� 7` R� I'. 7 °..Si. �Y. :... V';, -.. 1�, .... `.•�. �.. _ 4 C! •' - y `./�
le�ai�': ' Act'arf� u j[pl rrtel# O'iegUlations.or;by'.11iti 'eclui ementssof`-th4Oiaved State
'(I ,�. f t'=i jai , �. !•i��
rpretrea rbgrain• as ap i'o nate•.
� .a.? : rTF firer .- •r!. s'•••ut+� t .., •
Under authoPit iof'sections
regy ations
ernatively • revoked' atd reissued; to inco ` ; f e or modify
•
•
7(b) anc (c). and 402(b)(8) of the Clean Water'Act'and implementing
North Carolina General. Statute.143-215.3 (14) and::;implementing
{ ` {(�r !� •( •.7f, ' r.Yl �fF. S`' -}l''� } ... ` to { 14.1 • ,.. -•• ..• �!. I r. 'r�•,
:
? `a`rt III ° Pagejlr of 4

7a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year; and
7b. Sample.:all Significant Industrial Users (SIUs) at least twice per calendar year for all
permit -limited pollutants, once during the period from January 1 through June 30
and once, during the period from July 1 through December 31, except for organic
compounds which shall be sampled once per calendar year;
8. SIU Self Monitoring and Reporting
The permittee'shallrequire all industrial users to comply with the applicable monitoring and
reporting requirements. outlined in the Di ision approved pretreatment program the industry's
� Ew.� :1 ,. �iw .. •t .-'< / •t Sri.
pretreatment •per_ nut, or' in 15A NCAC-2HH.0908 , ,
a
9. Enforcement Response Plan (ERP)
The permittee shall enforce and obtain appropriate remedies fo .violations of ialt pretrea firient
•f • standards promulgated pursuant .tq section 307(b). and (c) of ,thesclean Water Act (40 CFR 405
et.seq.), prohibitive` discharge standards as set forth in 40 CFR 403.5 and 15A NCAC 2H .0909,
•• . •=�..' •. 1 ,::.. . • ... .
and specific local,lunitations.: 'All enforcement actions shall be consistent with the Enforcement
Response Plan (ERP) approved by the Division; • ..
10. Pretreatment Annual ~Reports (PAR)
The permittee shaltreport to the Division in accordance with 15A NCAC 2H .0908. In lieu of
submitting annual reports, Modified Pretreatment Programs developed under 15A NCAC 2H
.0904 (b) may be required to meet with Division personnel periodically to discuss enforcement
of pretreatment requirements and other pretreatment implementation issues.
For all other: active pretreatment' rograms, the permittee. shall submit two copies' of a
Pretreatment, nal Re , ort PAR de 'r 1_.,r r ,.A�nrt�, t . p , (FAR) ,}', _:scii>aing.""its pretreatment activities over the''previous
twelve monthsto tie Division, at: the following address:
• • NC DWQ, Pretreatment Group
P.O. BOX;29535
RALEIGH, NC 27626-0535
These. 'reports; s be, submitted -according to a schedule established by the Director and shall
contain the following:
a.)
easous,;foi+, status of, and actions .taken 'for•all-Significant
•u S �t ,opt Non -Compliance: (SNC),
11
ambsiinninary (PPS) on specific., forms: approved: by7'the
rt^(SNCR)
a,nd 'the''actions; taken:or
pxoved by;the Diyis}on;
zi1DSFF
,coheat�d;by bot> tii� PQ T
, ,T t e�= anaIytieal: results must' bk rep •
�Qr: ether spec' 'c for t ppOoved
TWsiallocation,table, new -or modified, enforce} e ;com ihnce
� tb1}notice ,of •SIUs in SNC, and any other i fori atiop,; tip on
`hel opuud of the Director•is
' needed to deternv elcoinpli• ce
entation requiremen ,of this a t�o t•
•
Part III

PR1
Part III NPDES No. NC0021873
r,
G. CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"
Revised November 1995, or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction
or significant mortality is 6.0 % (defined as treatment two in the procedure document).
The permit holder shall perform quarterly monitoring using this procedure to establish
compliance with the permit condition. The tests will be performed during the months of
March; June,: September;: ,and December. Effluent sampling for this: testing `shall be
performed at the NPDES permitted final effluent discharge below all treatment processes:
All toxicity testing results required as part of this permit condition will be entered on the.
Effluent Discharge Monitoring. Form (MR-1) for the month in which it was performed,
using`the.paraineter code TGP3B. Additionally, DWQ Form AT-1(origiiml) is to be sent to
the following address: .
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical
measurements :performed in association with the toxicity tests, as well- as' al dose/response
data: Total residual chlorine of the effluent toxicity sample must be measured and reported
if chlorine is=employed-foi=disinfection of the waste stream.
Shouldjthere be no dischargesof .flow from the facility during a month in:which toxicity
monitignng is required, the pe. • pittee will complete the information located at the top of the
uatie'toxici (AT)test foul indicating thefacili y name,permit number' i ,
aq , ty . ......, • :�! Pe �:P P.e
county land the month/yeat 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
addss'cited above.
Shoulcl'any siriglequaiteriyognitoring,indicate a -fa ju e, to meet specified, limits, then
montfilxmonito_ i ng will l ' 'i�miiaediatelyuntil: s` ch time that a single testis passed.:
U po pass•ng this'monthli+ 't requirement will revert to quarterly in the months specified
above:
Shoul4Ethe permittee fail tofmonitor during a month in which toxicity monitoring is
req ;j then monthly monitoring will begin immediately until such time that a single test
is passed. Upon,passing, this'monthly test requirement will revert to quarterly in the
mointlik specified, above.
Sho
l�erm•J�,•,.
limits::
anx. test=data from thi
tvisidn, o ,ry,
e re -open
monitoring,requi ement or tests performed by the North
f .
't r apoten
dlcatetiaa�"uapacts to the receiving stream,ahis
'� . 'eci'to include alternate monitoring re piiiiements or

Part III NPDES No. NC0021873
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.
1

001
1.
PART IV
ANNUAL ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
A. The permittee must pay the annual administering and compliance monitoring fee
within 30 (thirty) days after being billed by the Division. Failure to pay the fee in a
timely manner in accordance with 15A NCAC 2H .0105(b)(4) may cause this Division to
initiate action to revoke the permit.

NCDENR Compliance Inspection Report

n
Michael F. Easley, Governor }•
• William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D.
Acting Director
Division of Water Quality
September 4, 2001
MS. Debbie Catdwwell, Town Manager
Town of Mayodan
210 W.= Main Street
Mayodan, N.Cir 27027
Compliance. Evaluation inspection Report
dn;Town' of Mayodan WWTP
�'"and Land' Application Program
'NODES Permit No. NC0021873
aiid Land Application Permit No. WQ0002672
Rockingham County
SUBJECT:
Dear Ms. Cardwell:
The subject inspection was performed on August 28, 2001, by Mr. David Russell with our
Winston-Salem Regional Office. Mr. Jamie Whitten, ORC was present.
The inspection consisted of two basic parts: an on -site visit and an in -office review of facility
self -monitor ii i ta.
Self -monitoring data July 2000. through June 2001 shows:effluent limits were met throughout
,, the period with; a few exceptions:: Notilccs of Violation were sent for BOD= exceedances in ,
December ancdjJanuary. A;TSS violation occurred in May and another Notice of Violation was sent.
You-. are reminded that under . current:: policy, civil penalties will be assessed:; for significant
exceedances ofnonthly. average, weekly average or maximum hmits
•
Featment`plant ieceived an average flaw of- I.47 mgdfrrs• thee,jrzod July:2(00
' # i ' " d" eration basins'+was•beurggused:to tr t` the influent
nl� one' o� the t�vo- ol• ��.
WI 2a� t s � + if . , .. n i ,t.otftold"� a, ratioi .basin,wasbei ig usedfors1ud a.storage Overhalfbf the treatment
•
capacity: for tfacility] is lri tl e.. new. i aeration bas1n/clan iet� and is presently, idle:-
i -
t
Futu eq{plakis'.f•or :they f•acility: would. be to expand�to .4r5_mgd and,take the�wastewater. flow
•
from: Madison and'Stoneville.
is.ve 4welx:`o rat d. Fier the 'nod Jul 2Q00 tliirQu h
rout! omit vio atthns;:; No, deficiencies- were found: with `thei operation' of . the plant except:
ex p h
ecianical barcreen.wasp vic out`of sere. This should be rep
aired shortly since money has been
allocated for this: project:
n , rS' pe pe y g May�2Od1 there . no were
r e
N. C: Oiyision. of Water ( utility.. ;.
585 Waughtown, Street Winston Salem, NC 27107
Phone [phone]; Fa4336) 771-4630;'• Internet httpa/wq.ehnr.state.nc.us
Customs Simice•'
1 800 623-7148

Ms Debbie Cardwell `'
. Sep a nber 4�2001
Page #2
• Z:
At the time of this visit, no sludge receiver sites were visited since no, sludge: Had, been
applied since April 2001. The land application is contracted to Southern Soil Builders, Inc Mr.
Whitten seemed pleased with the service provided by the company..
It is apparent Mr.' Whitten is very conscientious in the properoperation of all facets of
• wastewater treatment.
z.
summary;- there were no on -going problems observed. with the wastewater treatment
program.
Should you have questions, please call Mr. David Russell or me at (336-771-4600)
Sincerely,
ctiv,---(5 -
Larry D. Coble
Water Quality Supervisor
cc: Jamie Whitten
Rockingham County Health Department
Central Files
WSRO
MCI

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•
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Form Approved.y.r•1 ', •,:: :
OMB No. 204070057
Approval expires 8-31-98
21
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action 8: Facility Data
Inspector
18)G�
Name and Location of,Fedility Inspected (For industrial users discharging to POTW; also.
• include POTW name and NPDES omit numbert,•:: ,.� ,l/th; Go i
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Section C: Areas Evaluated During Inspection.. (Check only those areas evaluated)
5 Flo , 1 asurem9! Operations &
CI;, : pies/ vi : Maintenance
Records/Reports 5 Self -Monitoring Program $ Sludge Handling/Disposal Pollution Prevention
�,.._
,r/� Compliance Schedules Pretreatment Multimedia
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Agency/Office/Phone and Fax Numbers , ;
Date •

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James B Hiint, Jr, P.0!?Prr:lor
Bill Holman, Secretary.g
Kerr T. Stevens, Director
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'page .1 •

Non Discharge Compliance Residua! inspection
ram
T
e
(9/Land Application 0 Distribution and Marketing
Record Kee • in
Copy of current permit available?.. •
raq Current metals and nutrient analysis? (see permit for frequency)
a. TCLP analysis?
b. SSFA ( Standard Soil Fertility Analysis)?
Permittee
Permit Number
Inspection.Date
`YJ/3yoJ# i
i,JQ 0007-671-
0/0 8 ;
Nutrient and Metal loading calculations to determine most limiting parameters? YTD!
Hauling„ Records?
# gallons / tons hauled during the calendar year to date?
Field Loading Records?
r' Records f lime purchased?
Fields ❑ Pathogen and Vector Attraction Reduction (if applicable)
Are Operation and Manintance records present?
Are Operation and Manintance records Complete?
Calibration of Land Application Equipment?
Pathogen and Vector Attraction' (if applicable):
n a. Fecal coliform SM 9221 E ( Class A or B )
0 ( Class A, all test must be <1000 MPNdry gram )
period for Class
0 (Geometric mean of. 7 samples per
monitoring
Fecal coliform SM 9222 D ( Class B only) for Class
o ( Geometric meant'of 7 samples per monitoring period
b.. Salmonella (Class.:A `all tests must be < 3MPN / 4 grams dry )
c: Time /Temp on:
Digester MCRT , 0 Com post 0 Class: A lime stabilization
y `� �
fugi
r
.d. Volatile Solids Calculations:
e. Bench -Top Aerobic/'.Anaerobic digestion results.
• f. pH records fo LimeStabilization (Class A or B).
`' Treatment
Equipment
Additional
Equipment
�i Ae obi PJ,b—P t_ion
❑:Auto'�heiit ophdIC, Aerobic
❑Anaerobic Digestion
❑ ryj.. g B,eds
ADlkaltrte�:Stabtlization (Lime)
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es O No
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es No
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0 Yes QNo
0 Yes O No
0 Yes- Q No
0 Yes :0 No
0 Yes'. Q No
❑ AlkalineStab!li?ation (Other)
om ost, � Niridrow).
Digestion 0 C P �• _ . • ; . .
Compost (Aerated Static Pile).
❑ Other
page 2

/Ton Discharge Compliance Residual Inspection
/Y17
004N
Trans ort �.�
Permit in transport v
Spill control plan in vehicle? Not
Does transport vehicle appear to be maintained?
vehicle?
`� S
(40,51/-- reAl
Permittee
Permit Number
Inspection Date
a / ZVO/
0/OS -34
•
10Yes QNo•:...
{Q Yes QNo
QYes QNo
Piz Storage
- • ❑ Lagoon ❑ AST 11iST ❑ Septic Tank ❑ Drying Beds ❑ Concrete Storage Pads
(9
rmi
Number of months storage?
Spill control plan on site?
If Applicable:
Is lagoon lined?
Above Ground Tank
�❑ Aerated ❑ Mixed
Under Ground Tank I Aerated ❑ Mixed
Aerated Hp:
Aerated Hp: ( 75 1
Sampling
Describe Sampllin :L A-QR ,0 .ZSIN
Q Yes ( No
10 Yes QNo
Mixed Hp:
Mixed Hp: 1 75
Is sampling adequate?
Is sampling representative? t � h4I5.
��/�sQ �s 'I�
}— Q es ,. 1/s;4
Disposal � � Zv0/
Buffers Adequate? ;N 4Pg; f
Cover Crop Type Specified in Permit?
' Documented exceedence of PAN limits?
Site Condition adequate (improvement)?
Signs of runoff / ponding?
Is the acerage specified in the permit being utilized?
r=1 Is application equipment present and operational?
Are there any limiting slopes on disposal field?
(10% for surface application)
(18% for subsurface application)
Are monitoring wells called for in permit?
Access restrictions and / or signage?
Permit on site during application event?
Odors or Vectors present at land application site?
Nutrient / crop removal? •
es QNo
'9'Yes QNo
'Q Yes QNo
10 Yes QNo
p Yes QNo
p Yesiio
Q Yes QNo
YeS QNo
QYes QN
Q Yes QNo
QYes ONO'
Q Yes Q. No
page 3

TOWN OF MAYODAN
OFFICE OF THE TOWN MANAGER
210 W. MAIN STREET • MAYODAN, N.C. 27027 • [phone]
FAX [phone]
July 31, 2001
Mr. Charles H. Weaver, Jr.
NCDENR/Water Quality/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: NC0021873
Dear Mr. Weaver,
Enclosed is the permit renewal application for the Town of Mayodan WWTP.
If you have any questions, please advise.
Sincerely,
Town of Mayodan
Co,Acuc_,
Debra Cardwell
Town Manager
C7
Y 1

Town of Mayodan
NPDES Permit NC0021873
Present Operating Status
The Town of Mayodan Wastewater Treatment Plant is a 3.0 MGD design capacity facility. The
facility treats a combination of domestic and commercial wastewaters. The current treatment
scheme includes a mechanical bar screen, grit removal system, activated sludge and secondary
clarification. The treated effluent is disinfected by chlorination followed by a dechlorination
through the use of Sulfur Dioxide. Following is a schematic of the existing wastewater treatment
plant. The volumetric capacities are noted on the schematic.

TOWN OF MAYODAN WWTP
Influent
To
Plant
Effluent
Sampler
Chlorine
Contact
Chamber
V\i/
To Stream
Influent
Bar
Screen
Cl2
Injector
Flow
Splitter
Box
Effluent
Flow
Meter
Aeration Basins
1.25 MGD Total
v Vi
Control
Building
Generator
Room
To Drying Beds
Aeration Basin
1.75 MGD
0.143
E- Clarifier
Effluent To Stream
S udge
Pumping
Building
Sludge
Thickeners
0.14
Clarifier
Digester
(400,000 gals.)
CI21S02
Injector
Chlorine
Contact (
Chamber
Pump
Building
Clarifier
0.400 MG
Effluent
Flow
Meter
Sand
Drying
Beds
10 Beds=
40,000 sq.
ft.

Town of Mayodan
NPDES Permit No. NC0021873
PROJECTED FUTURE EXPANSION
The Town of Mayodan is anticipating on expanding the existing treatment plant to accept
wastewater from two neighboring Towns, the Town of Madison and the Town of
Stoneville. It is estimated that the expansion will require a total time of approximately
two years from start of design to completion of construction. This would break down into
about four months for design, two months for approvals and bidding and eighteen
months for construction. There would, of course, be some variations here if any
unforeseen problems are encountered in the approval/permitting process.
WWTP Expansion Units
Review of the existing Mayodan treatment facility indicates the following components
must be included in the plant upgrade form 3.0 to 4.5 MGD.
• Revise/Upgrade mechanical bar screen
• Revise/Upgrade influent pumping
• Revise/Upgrade distribution box
• Add 1.5 mgd aeration basin
• Add 1.5 mgd clarifier
• Add aerobic digestion
• Add sludge pumping
• Add/revise/combine disinfection facilities
• Install all required electrical wiring and devices
• Furnish additional generator
• Install all necessary metering, controls, etc.
• Minor grading/excavating will be required
• Site is currently fenced
• All structures will be above 100 year flood level
The Mayodan WWTP Plant layout and flow diagram are on the attached figures as
prepared by West Rock Engineers.

•
EXISTING
DISTRIBUTION
. BOX.
185
12
EXISTING -
INFLUENT
PUMPING
& WET WEI4.
EXISTING
MECHANICAL
SCREENING
• et
co
0
L
t0
l
A
EX SI1NG
AERATION
1.75 MGD
4 ' SLUDGE RECMt.
EXISTING
AERATION
D.825 MGD
SLUDGE
.`.
EXISTING
AERATION
0.625 MGD
M
RECIR.
EXISTING
CLAl --
FIER
DRAIN FROM DRYING BEOS
EXISTING
SLUDGE
TANK
EXISTING
CHLORINE
CONTACT
EXISTING
DRYING
BEDS
1
E.-,,. ffLUEML�O�-.-
OISCFIARGE. 3 MC
Figure 4.2
Schematic of Wastewater
Flow
Meyodan Treatment Plant
Western Rockingham County BY:
Regional Wastewater Treatment WestRock Engineers
201 Facilities Pion
co
3

FROM DISTRIBUTION
BOX
TO PLANT
1
PROPOSED
1.5 MGD
AERATION BASIN
i
PROPOSED
1.5 MGD
CLARIFIER
EFFLUENT
PROPOSED
CHLORINE
CONTACT
FUTURE
1.5 MGD
AERATION BASIN
1
1
PROPOSED ,
SLUDGE -
PUMPING
FUTURE
1.5 MOD •
CLARIFIER
1OTE: • ALL PROPOSED PROCESS UNITS
TO BE INTERCONNECTED BY PIPING AND
VALVES TO EXISTING UNITS FOR FLEXIBILITY
• OF OPERATION.
Figure 4.3
roposed Ex onsion--EDA--
Ma dvnp NC WWTP
fig_ 4.5 MGD
Western Rockingham County
Regional Wastewater Treatment
201 Facilities Plan
BY: •
WestRock Engineers

Town of Mayodan
NPDES Permit NC0021873
SLUDGE MANAGEMENT PLAN
The Town of Mayodan VW TP thickens sludge in one of two gravity thickeners and then
it is digested in an aerobic digester with the capacity of 0.4 MGD. The stabilized sludge
is then land applied either as a liquid directly from the digester or it may be dewatered
on one of the 10 sand drying beds and then land applied. The Land Application Permit
(WQ0002672), permits a total of 197.6 acres.

qr
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 11. BASIC DISCHARGE DESCRIPTION
Complete this section for each present (or proposed) discharge indicated in Section I.
All values for an existing discharge should be representative of the twelve previous months of operation.
(If this is a proposed discharge, values should reflect best engineering estimates.)
1. Facility Discharges, Number and Discharge Volume
Specify the number of discharges described in this application and the volume of water discharged or lost to each of the categories below.
Estimate average volume per day in MGD. Do not include intermittent discharges, overflows, bypasses or seasonal discharges from lagoons, etc.
Discharge To:
Number of Discharge Points Total Volume Discharged (MGD)
Surface Water
1
1.391
Other (describe below)
TOTAL
1
1.391
If 'other' is specified, describe:
2. Outfall Number: 001
Assign a three -digit number beginning with 001 for the point of discharge covered by the first description. Discharge serial numbers should be
consecutive for each additional discharge described; hence, the second serial number should be 002 , the third 003, etc.
3. Discharge to End Date
If the discharge is scheduled to cease within the next 5 years, give the date (within best estimate) the discharge will end:
Give the reason(s) for discontinuing this discharge in your cover letter.
4. Receiving Stream Name
Give the name of the waterway (at the point of discharge) by which it is usually designated on published maps of the area. If the discharge is to an
unnamed tributary, so state and give the name of the first body of water fed by that tributary which is named on the map, e.g., UT to McIntire Creek,
where McIntire Creek is the first water way that is named on the map and is reached by the discharge.
Mayo River
5. Outfall Structure
Describe the outfall structure and any significant changes since the last permit was issued (repairs, shoreline maintenance, etc.).
The structure is a 24" RCP pipe, which discharges into the Mayo River.
3of3

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows _?:1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11! for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU
Unifi, Inc. Plants 1 & 5
Street address 802 S. Ayersville Road
City Mayodan County Rockingham
State North Carolina Zip Code 27027
Telephone Number ( 336 ) 427-4051
Fax Number ( 336 ) 427-1529
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Textured Nylon
11,900,000
lbs/yr
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.123 MGD
Intermittent ❑x Continuous
4of4

` NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows ?1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Unifi, Inc.
Street address 271 Cardwll Rd.
City Mayodan County Rockingham
State North Carolina Zip Code 27027
Telephone Number ( 336 ) 427-1144
Fax Number ( 336 ) 427-1529
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Dyed Polyester
30,172,868
lbs/yr
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.866 MGD
0 Intermittent Q Continuous
4 of 4

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows >1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Unifi, Inc.
Street address Island Drive
City Madison County Rockingham
State North Carolina Zip Code 97095
Telephone Number ( 336 ) 427-1162
Fax Number ( 336 ) 427-1529
e-mail address
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Textured Nylon
76,400,000
lbs/yr
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.083 MGD
[] Intermittent ® Continuous
4 of 4

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 25,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU Springwood Fabrics
Street address 111 Commerce Lane
City Stoneville County Rockingham
State North Carolina Zip Code 27048
Telephone Number ( 704 ) 854-9438
Fax Number
e-mail address
( 704 ) 853-3365
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Polyester Fabric
6,500,000
lbs/yr
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.076 MGD
Intermittent ❑x Continuous
4ofa

Hobbs, Upchurch & Associates,
Consulting Engineers 1.1300 S.W. Broad Street • Post Office Box 1737 • Southern Pines, NC
Li 1 (-I L 3 2002 J
- WATEFt Ct14.1 tTY
June 24, 2002
Mr. Dave Goodrich, Supervisor
NCDENR Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: Town of Mayodan, Rockingham County
WWTP NPDES Application for Modification
HUA No. MY0001.p
Dear Mr. Goodrich:
Fax: [phone]
On November 7, 2001, the above referenced project was submitted to your office for review. As
stated in the correspondence, the project at that time had received approval of the 201 Facilities
Plan and design was being completed. We have recently received comments on the design from
NCDENR Construction Grants and Loans and will be addressing these comments accordingly.
As such, it is imperative that we obtain the approval of the additional discharge from your office
as soon as possible.
Our situation is further complicated by the other funding sources that have been made available
for the project. We were fortunate to receive EDA grant funding of $1,000,000 for the
improvements, however, these funds are in jeopardy if we cannot proceed in the very near future.
As all parties have approved the 201 Plan, we have anticipated no significant issues with our
request. The regional office has also been very supportive of the project as it eliminates two (2)
existing discharges.
Thank you for your assistance and cooperation in the approval of this project. If you should have
any addiiioriai questions regarding this project, please do not hesitate to contact this office.
Sincerely,
HOBBS, UPC
Bill Lester, Jr., • .E.
H AND ASSOCIATES, P.A.
Governmental Division Manager
Cc: Debby Cardwell, Town Manager, Town of Mayodan
Sharon Garner, Town Manager, Town of Madison
Bob Wyatt, Town Administrator, Town of Stoneville
Southern Pines. NC • Telephone [phone] • Fax [phone] • e-mail: [e-mail]
Myrtle Beach • Nags Head • Raleigh • Charlotte • Beaufort

•
Additional information, if provided, will appear on the following pages.
019
,o?
Fitt
Industrial Processes
Unifi, Inc., 271 Cardwell Road (104)
Polyester yarn in the form of large spools is dyed in pressuized
vessels using a mulit-step, batch process. After drying, some yarn
is would onto paper cones and boxed for sale. Yarn lubricant is
added to some yarn at the end of the dyeing step. After drying the
yarn is boxed for sale.
Unifi, Inc., 805 Island Drive (105)
Partially oriented nylon yarn is texturized in a dry process where the
nylon yarn is heated and twisted to change the bulk and feel. In a
separate process, spandex yarn is covered by wrapping textured
nylon around a center of spandex yarn.
Unifi Inc., P.O. Box 737 (102)
Plant 1: Physical characteristics of nylon yarn are modified through
the texturizing process which draws and crimps the yarn using the
false twist process.
,,; Plant 5: Textured nylon is wrapped around spandex yarn in a
process called covering. Mineral oil lubricants are applied to the
surface of the yarn products.
Springwood Fabrics
Textile operation, fabric finishing operation, heat transfer printing
and fabric cutting.
NPDES FORM 2A Additional Information
rof

ATTTAC H E D 2
The discharge from this industry caused an upset at the POTW during the
period of March 2000 through July 2000. The yarn lubricant that is used in
the manufacturing process caused settling problems at the POTW. The
Town met with the industry to discuss the impact that the yarn lubricant
was causing at the POTW and to discuss corrective actions the industry
would take. Unifi, Inc. substituted the yarn lubricant with another type that
did not cause operation problems at the POTW. In addition, Unifi, Inc.
installed a DAF unit.
NPDES FORM 2A Additional Information

Checklist for permit renewal
Permit No. 00002/g/ 3 Facility /O Y7 0/ rnayoda41
Date reviewed 9�//O �-
Industrial Category/SIC code Municipal
Treatment system classification Class I Class II Class III Class IV
sampling agrees with classification
Basin, sub -basin Rva,nokt,
`Basin plan
✓303(d) list Impared Y/ I)
Compliance review: t/ DMR NOV lnstream data review
Water Quality based limits 4/Wnoxa
Effluent Guidelines Technology based limits
Dept Policies (chlorine, instream monitoring, fecal coliform)
t/ ATC (expansion, new units)
Application complete
PPA PO
Second species tox test �17
Owner signature V
Fact Sheet (note which parameters are water quality limited or effluent limited, attach reasonable
potential spreadsheet and limits calculations, pre-treatment)
RPA
Map
Reviewers/Approvals
EPA x Region County/City )Toxicology
Env. Health Others
Peer review .0e .
`Ammonia limit or monitoring - include ammonia wording
Mercury limit or monitoring — include mercury wording and footnote about sample change to grab
I i tI�TRC — if no limit in permit, include wording about the adoption of a standard in the future.
Special conditions: PPA
Comments:
1 ,65l/t/5 uyydzire-ee-

Job Name: Town 01 Niavodan WWII)
11UA No. MY0002
Date: 6-Nov-01
Description: Aeration Basin Sizing and Parameter Calculation Worksheet
Formulas:
Sludge Age (days) = Suspended Solids In Aeration
Suspended Solids To Aeration
MLSS (mg/l) = Desired Suspended Solids In Aeration
Weight Of Water In Aeration
MCRT (days) = Suspended Solids In Aeration
SS In WAS + SS In Effluent
Food To Microorganism Ratio = BOD To Aeration
MLVSS in Aeration
Input Parameters:
Calculated Parameters:
1
Wastewater Flow & Influent Conditions:
Calculated Parameters:
Peak Wet Weather Flow (mgd) = 6.000
ADF BODS Destroyed (Ib/day) =>
6,380
Design Year Flow, ADF (mgd) = 4.500
ADF Ammonia -Nitrogen Destroyed (Ib/day)=>
1,152
Start -Up Anticipated Flow (mgd) = 3.250 a
Yr. I BOD5 Destroyed (lb/day) =>
4,608
Design Sludge Retum Rate (mgd) = 1.000 1
Yr.1 Ammonia -Nitrogen Destroyed (lb/day) =>
832
Influent BOD5 (mg/1) = 200
Influent TSS (mg/1) = 200
1 Oxygen Rates
Influent TKN (mg/1) = 40
ADF Actual Oxygen Transfer Rate, AOTR (lb/day) =>
13,275
Effluent BODS Required (mg/1) = 30 t
ADF Standard Oxygen Transfer Rate, SOTR (Ib/day) =>
21,514
Effluent TSS Required (mg/I) = 30
Yr.l Actual Oxygen Transfer Rate, AOTR (Ib/day) =>
9,588
Effluent NH3-N (mg/1) = 9 I
Yr.l Standard Oxygen Transfer Rate, SOTR (lb/day) =>
15,538
Max Temperature (deg C) = 27 Ir� t
Site Elevation = 100
HP Required
Temperature Correction Theta = 1.024 I
HP At Average Daily Flow =>
299
Saturation D.O. at Temp, Elev Cst (mg/l) = 7.99
HP At Year 1 Flow =>
216
Design Assumptions
4 Reactor Basin Volume (Based on IbBOD/1000 cult)
Design MLSS (mg/I) = 3,000
Volume Required (gals) =>
1,590,772
Yr.l MLSS (mg/l) = 3,000
r Detention Time (hrs) =>
8.48
RAS and WAS Concentration (mg/1) = 10,000
I
Transfer Alpha Value = 0.85
System Mass Requirements
Transfer Beta Value = 0.95
System Mass - BOD x MCRT x Yield (Ib) =>
114,842
Mean Cell Residence Time (days) = 24
Volume Required (gal) =>
4,590,000
Operating Dissolved Oxygen, Co (mg/l) = 2.00
lb BOD5/1000 cu fi Aeration Vol = 30
Y Detention Time (hrs) =>
rt
24.48
Sludge Yield (Ib TSS/Ib BODS Destroyed) = 0.75
s Selected Volume - Input Value (gals)
4,500,000
Volatile SS Fraction (MLVSS/MLSS)= 0.65
Selected Basin Evaluation
Rate Coefficients
ADF Detention Time (hrs) =>
24.00
lb Oxygen/Ib BODS Applied = 1.25
i Yr. I Detention Time (hrs) =>
33.23
lb Oxygen/Ib NH3-N Applied = 4.60
• Mixing HP Required =>
902
ADF Process HP Required =>
216
HP Coefficients
ADF Food To Mass (lb BOD/Ib MLSS) =>
0.09
Ib 02/BHP-Hr = 3.00
Yr. 1 Food To Mass (lb BOD/lb MLSS) =>
0.06
BHP/1000 Cu Ft = 1.5
ADF Sludge Wasting Rate (gpd) =>
42,750
i Yr. I Sludge Wasting Rate (gpd) =>
46,500

Job Name: 'Town of Mayodan W WTI)
IIUA No. MY0002
Date: 6-Nov-0
Description: Clarifier Evaluation 2001 Clarifier Addition Only
Formulas:
Surface Loading Rate (GPD/SF) = Flow Rate (GPD) / Surface Area (SF)
Hydraulic Detention Time (Hrs) = Tank Volume (GALS) x 24 Hr/Day / Flow (GPD)
Solids Loading Rate (Lbs/Day/SF) = Solids Applied (Lb/Day) / Surface Area (SF)
Weir Overflow Rate (GPD/FT of Weir) = Flow Rate (GPD) / Weir Length (FT)
Input Parameters:
Calculated Parameters:
Wastewater Flow:
Calculated Diameter:
Peak Wet Weather Flow (mgd) = 2.000
, Surface Loading Basis (FT) =>
56.42
Design Year Flow, ADF (mgd) = 1.500
Solids Loading Basis (FT) =>
39.91
Start -Up Anticipated Flow (mgd) = 1.000 1,
Weir Overflow Basis (FT) =>
47.75
Design Sludge Return Rate (mgd) = 1.000
Detention Time Basis (FT) =>
72.93
Mixed Liquor Suspended Solids Concentration:
Minimum Diameter Required (FT) =>
j
72.93
ADF MLSS (mg/I) = 3,000
I Selected Diameter (FT) =>
75.00
Yr.1 MLSS (mg/I) = 3,000
Calculated Conditions:
Clarifier Parameters:
Surface Loading Rate:
Number Of Units = 1
Peak Wet Weather (GPD/SF) =>
453
Sidewater Depth (ft) = 12.0
' Design Year, ADF (GPD/SF) _>
340
Design Surface Loading Rate (GPD/SF) = 600
Design Solids Loading Rate (Lb/Day/SF) = 30
Design Weir Overflow Rate (GPD/LF) = 10,000
Design Detention Time (Hrs) = 6
' Solids Loading Rate:
Peak Flow, ADF MLSS (Lb/Day/SF) =>
11
ADF+RAS, ADF MLSS (Lb/Day/SF) =>
14
ADF+RAS, Yr.1 MLSS (Lb/Day/SF) =>
11
Weir Overflow Rate:
Peak Wet Weather (GPD/LF) =>
8.488
, Design Year, ADF (GPD/LF) _>
6.366
E
Detention Time:
Peak Wet Weather (Hrs) _>
4.76
Design Year. ADF (Hrs) =>
6.34
4
1

ao
r�1
rs1
.1 oh Name: Town of Mayodan VV\V'I'I'
IIUA No. MY0002
Date: 6-Nov-O 1
Description: Clarifier Evaluation 1994 Clarifier Addition Only
_Formulas:
Surface Loading Rate (GPD/SF) = Flow Rate (GPD) / Surface Area (SF)
Hydraulic Detention Time (Hrs) = Tank Volume (GALS) x 24 Hr/Day / Flow (GPD)
Solids Loading Rate (Lbs/Day/SF) = Solids Applied (Lb/Day) / Surface Area (SF)
Weir Overflow Rate (GPD/FT of Weir) = Flow Rate (GPD) / Weir Length (FT)
Input Parameters:
Calculated Parameters:
Wastewater Flow:
Calculated Diameter:
Peak Wet Weather Flow (mgd) = 2.000
Surface Loading Basis (FT) =>
60.94
Design Year Flow. ADF (mgd) = 1.750
Solids Loading Basis (FT) _>
43.11
Start -Up Anticipated Flow (mgd) = 1.500
Weir Overflow Basis (FT) =>
55.70
Design Sludge Return Rate (mgd) = 1.500
Detention Time Basis (FT) =>
78.78
Mixed Liquor Suspended Solids Concentration:
Minimum Diameter Required (FT) =>
78.78
ADF MLSS (mg/1) = 3,000
Selected Diameter (FT) =>
75.00
Yr.1 MLSS (mg/I) = 3.000 I
Calculated Conditions:
Clarifier Parameters:
Surface Loading Rate:
Number Of Units = 1
1 Peak Wet Weather (GPD/SF) =>
453
Sidewater Depth (ft) = 12.0
Design Year, ADF (GPD/SF) =>
396
Design Surface Loading Rate (GPD/SF) = 600
t
Design Solids Loading Rate (Lb/Day/SF) = 30
Design Weir Overflow Rate (GPD/LF) = 10,000
Design Detention Time (Hrs) = 6
Solids Loading Rate:
Peak Flow, ADF MLSS (Lb/Day/SF) =>
11
ADF+RAS. ADF MLSS (Lb/Day/SF) =>
18
1 ADF+RAS, Yr.1 MLSS (Lb/Day/SF) =>
17
1
i
4
Weir Overflow Rate:
t Peak Wet Weather (GPD/LF) =>
8.488
Design Year, ADF (GPD/LF) _>
7,427
,
Detention Time:
i Peak Wet Weather (Hrs) =>
4.76
Design Year, ADF (Hrs) =>
5.44

Job Name: Town of Mayodan Ww' it)
I Il1A No. MY0002
Date: 6-Nov-r' '
Description: Clarilic . tluati, -
Formulas:
1981 ('l iginal iar ors
Surface Loading Rate i)/SF; . i `i) } . face .
Hydraulic Detention 1 ( Hrs) (CT I ' 24 ' PD)
Solids Loading Rate (: Jay/S. plied (I_: Day) t : . c Air.. F)
Weir Overflow Rate C. 'FT o: :.,W Rate (, /
Inpt .
Wastewater Flow: ziam•
Peak Wt.: Pi
Design 1 A
Start -Up ,•d
Design
Mixed Liquor Suspended • "'onc.
ADF MI.' I) _
Yr.l MI..' i) _
Clarifier Parameters:
Number C: is =
Sidewate, '1 (fl)
Design S.. Loadir
Design So' .oadinc
Design 1t' . rI1ov.
Design D Tin
gym'•
-;•d D,
:ond
• Iculatc ;mc; -s:
'i') 36.42
r) _ 25.76
!-) - 19.89
r) 47.08
quired : 47.08
F =>
.e Lo:+
eak We r (GPD/SI
sign (GPD'SI
45.00
550
393
Loa,'
:kII. 1LSS(1.' i 14
T . :I.SS r: 18
i= ; .LSS :. 18
;yeti
• k;I'D ;
sign ' (GPD-1 t
'ion i.
_ak fit: (11rs)
sign ` . (I1rs)
6,189
4,421
3.92
5.48

Inn
PRI
rat
Ral
r=1
MEI
rat
.lol) Name: Town of Mavodan WWII)
1111A No. MY0002
Date: 6-Nov-01
Description: Sludge Digestor Calculations
Formulas:
Pounds Of Solids Wasted Per Day = (Q Was)(8.34)(MLSS Was)
Volume Of Thickened Sludge (gpd) = Pounds Of Solids Wasted Per Day
(Thickened Conc - Decant Conc)(8.34)
Input Parameters
1 Calculated Parameters
Wastewater Flow
Sludge Digestion & Storage Calculated Parameters
Peak Wet Weather Flow (mgd) =
11.250
ADF Pounds Of Soilids Per Day =>
3,565
Design Year Flow, ADF (mgd) =
4.500 a
Yr.1 Pounds Of Soilids Per Day =>
3,878
Start -Up Anticipated Flow (mgd) =
3.250
ADF Thickened Sludge Volume (gpd) =>
17,169
Design Sludge Return Rate (mgd) =
1.000
Yr. 1 Thickened Sludge Volume (gpd) =>
18,675
Influent BODS (mg/l) =
200
ADF Annual Sludge Disposal Cost ($/Yr) =>
$156,664
Influent TSS (mg/1) =
200
Yr. 1 Annual Sludge Disposal Cost (S/Yr) =>
$170,407
Influent TKN (mg/1) =
40
Effluent BODS Required (mg/1) =
30
Aerobic Digestion 503 Sludge Digestion & Storage Requirements
Effluent TSS Required (mg/1) =
30
Effluent NH3-N (mg/1) =
9
ADF Volume Required At 20 Dec C (40 Days)=>
686,747
Max Temperature (deg C) =
27
Yr. 1 Volume Required At 20 Dec C (40 Days)=>
746,988
Site Elevation =
100
Sludge Storage Volume Required (30 days)=>
515,060
Temperature Correction Theta =
1.024
Saturation D.O. at Temp, Elev Cst (mg/1) =
7.99
Sludge Digestion / Storage Volume Available / Provided
Design Assumptions
r Aeration Basin (1981) Storage Volume
532,815
Design MLSS (mg/I)=
3,000
1981 WWTP Expansion Storage Volume
80,784
Yr.1 MLSS (mg/1) =
3,000
"Total
613,599
RAS and WAS Concentration (mg/1) =
10,000
Transfer Alpha Value =
0.85
1994 WWTP Expansion Sludge Digestion
431,783
Transfer Beta Value =
0.95
Proposed Digester - 2001 Sludge Digestion
388,604
Mean Cell Residence Time (days) =
24
'T'olal
820.38'
Operating Dissolved Oxygen, Co (mg/1) =
2.00
lb BOD5/1000 cu II Aeration Vol =
30
: Additional Storage Volume Available
Sludge Yield (lb TSS/lb BODS Destroyed) =
0.75
Sludge Drying Beds (10 Q 4,000 sf each, 8" depth)
26,668
Volatile SS Fraction (MLVSS/MLSS)=
0.65
Sludge Digestion & Storage Input Parameters
ADF Sludge Wasting Rate (gpd) =
42,750
Yr. 1 Sludge Wasting Rate (gpd) =
46,500
Target Percent Solids After Thickening =
2.50%
Target Decant Solids Concentration (mg/1) =
100
o
Sludge Disposal Cost ($/Gal) =
$0.03

TOWN OF MAYODAN
WWTP MONITORING SUMMARY
Influent
Effluent
Month
BOD5
TSS
FLOW
BOD5
TSS
Ave
Max
Min
Ave
Max
Min
Ave
Max
Min
Ave
Max
Min
Ave
Max
j Min
Jan-99
92.3
233.0
53.0
163.8
750.0
40.0
1.291
2.003
0.984
10.4
18.0
6.0
11.5
40.0
1.0
Feb-99
100.1
193.0
62.0
190.21
1408.0
38.0
1.253
1.516
1.077
9.8
18.0
5.0
10.9
26.0
3.0
Mar-99
86.0
183.0
50.0
184.70
1826.0
16.0
1.330
1.743
1.045
8.0
27.0
3.0
5.7
20.0
<1.0
Apr-99
59.8
98.0
38.0
92.95
318.0
43.0
1.460
3.007
1.256
10.2
26.0
2.0
10.4
80.0
<1.0
May-99
74.8
156.0
42.0
224.90
1146.0
28.0
1.496
1.802
1.222
7.8
28.0
3.0
11.5
53.0
<1.0`
4.0
Jun-99
60.9
106.0
39.0
261.45
806.0
70.0
1.377
1.662
1.016
7.9
18.0
3.0
10.1
36.0
JuI-99
77.7
106.0
54.0
341.07
1351.0
42.0
1.230
1.934
0.509
9.1
19.0
<2.0
15.2
44.0
3.0
Aug-99
83.4
187.0
42.0
251.35
2394.0
55.0
1.431
1.928
1.291
23.9
98.0
<2.0
18.9
34.0
7.0
Sep-99
47.1
83.0
16.0
62.38
200.0
23.0
1.658
3.171
1.282
8.7
23.0
<2.0
11.4
56.0
3.0
Oct-99
52.9
74.0
29.0
39.86
100.0
12.0
1.503
2.070
1.074
2.8
7.0
<2.0
5.4
16.0
1.0
Nov-99
80.5
134.0
59.0
79.21
278.0
14.0
1.198
1.344
1.072
10.2
21.0
<2.0
13.9
24.0
4.0
Dec-99
63.2
112.0
36.0
86.95
961.0
10.0
1.107
1.610
0.534
7.0
13.0
<2.0
15.0
39.0
2.0
Jan-00
80.3
130.0
9.0
75.25
430.0
17.0
1.350
2.010
1.154
13.9
106.0
<2.0
14.0
64.0
<1.0
Feb-00
107.0
180.0
48.0
89.67
664.0
18.0
1.347
1.585
1.118
19.9
42.0
10.0
10.6
28.0
<1.0
Mar-00
136.8
231.0
70.0
153.61
543.0
34.0
1.201
2.229
0.898
15.3
32.0
2.0
16.2
36.0
<1.0
Apr-00
125.7
440.0
69.0
131.28
980.0
34.0
1.316
1.909
1.128
20.7
34.0
8.0
23.2
58.0
-
<1.0
May-00
196.4
465.0
70.0
164.43
448.0
40.0
1.193
2.343
0.698
41.1
98.0
10.0
63.9
130.0
<11.0
Jun-00
118.6
253.0
34.0
130.45
368.0
10.0
1.655
2.528
1.175
11.8
26.0
2.0
15.3
50.0
<1.0
Jul-00
49.8
114.0
22.0
41.00
189.0
4.0
1.326
1.608
0.870
5.9
20.0
2.0
2.2
23.0
__
<1.0
Aug-00
52.2
112.0
23.0
39.32
116.0
10.0
1.564
2.390
1.404
7.1
36.0
<2.0
9.8
22.0
3.0
Sep-00
57.2
128.0
29.0
52.50
164.0
27.0
1.757
2.511
1.450
5.8
19.0
<2.0
10.1
66.0
1.0
Oct-00
58.9
118.0
21.0
65.48
284.0
13.0
1.452
2.250
1.235
5.7
29.0
<2.0
5.6
18.0
1.0
Nov-00
95.2
360.0
50.0
68.1
120.0
21.0
1.403
1.655
1.229
5.4
15.0
<2.0
4.0
9.0
<1.0
Dec-00
100.6
190.0
34.0
85.1
220.0
23.0
1.123
1.437
0.608
7.1
32.0
<2.0
6.0
25.0
<1.0
Jan-01
107.4
188.0
52.0
176.1
720.0
40.0
1.700
2.325
0.746
8.4
31.0
<2.0
13.9
35.0
<2.0
Feb-01
143.0
370.0
50.0
166.9
873.0
45.0
1.629
2.743
1.234
3.7
12.0
<2.0
7.4
26.0
<1.0
Mar-01
85.9
191.0
47.0
54.9
176.0
23.0
1.544
2.770
1.201
6.5
26.0
2.0
9.0
46.0
2.0
Apr-01
78.2
189.0
16.0
65.1
364.0
24.0
1.435
2.258
1.034
5.8
11.0
2.0
9.0
29.0
3.0
May-01
75.8
194.0
28.0
69.4
132.0
26.0
1.235
1.480
1.066
4.7
13.0
2.0
5.5
19.0
1.0
Jun-01
67.1
232.0
25.0
57.6
152.0
12.0
1.286
1.595
0.956
12.8
34.0
3.0
8.3
28.0
1.0
JuI-01
86.2
580.0
24.0
101.3
820.0
10.0
1.165
1.571
0.719
6.8
19.0
2.0
15.0
30.0
4.0
Aug-01
61.5
113.0
24.0
65.5
304.0
22.0
1.378
1.998
0.787
9.1
30.0
2.0
9.4
26.0
3.0
Avg. All 86.3 201.3 39.5 119.7 612.7 26.4 1.387 2.031 1.034 10.4 30.7 3.8 12.4 38.6 2.6
Avg. 12 Months 84.8 237.8 33.3 85.7 360.8 23.8 1.426 2.049 1.022 6.8 22.6 2.2 8.6 29.8 2.0

fon
Project: Mayodan, NC
Engineer: MAD
pm Date: 7/22/99
fan
Fin
nal
INI
McKinney Calculations
The following calculations are based on the activated sludge model as developed by
Dr. McKinney (University of Kansas), and applied based on the following design criteria:
Flow = Average daily influent flow rate
c, Volume
fon
MR
Mat
T
BOD5
1.50 MGD
= 5,678 m3/day
Total volume of all aeration cells
1.50 MG
Design basin temperature
20 °C
Design Influent BOD5
220 mg/I
= 5,678 m3
TSS = Design influent total suspended solids
= 220 mg/1
TKN = Design influent total Kjeldahl nitrogen
= 40 mg/I
MLSS
= Design Mixed Liquor Suspended Solids
= 4,000 mg/I
Aeration hrs = Aeration time per day
= 24 hrs/day
WS conc = Waste sludge concentration
= 10,000 mg/I (assumed)
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1998
Page 1 MCKINNEY.XLS

rah
System Parameters
Hydraulic Retention Time, HRT
HRT = Volume / Flow Rate
= 1.O days
Solids Retention Time, SRT
The solids retention time, or sludge age, is calculated by assuming an initial value
for the SRT, and then calculating the associated total mass, Mt. Iterations are
performed until the total mass calculated by the program is equal to the design
MLSS. Therefore:
SRT = 24.3 days
,... Food to Mass Ratio, F/M
MK,
lagi
F/M
BOD5 loading (Ibs/day) / Total MLSS, Ibs
0.06 1/day
Kinetic Coefficients (As a Function of Design Temperature)
BOD Removal Coefficient, Km
Km = 90 x exp (0.069315 x T)
= 360 1/day
Sludge Synthesis Coefficient, Ks
KS
= 62.5 x exp (0.069315 x T)
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1998
250 1/day
Page 2 MCKINNEY.XLS

Endogenous Metabolism Coefficient, Ke
Ke
= 0.12 x exp (0.069315 x T)
= 0.48 1/day
, System Mass Calculations
Active Mass, Ma
f
Ma = KS x F
(1 /SRT) + Ke
pm= 292 mg/I
Ms
Ma
Endogenous Mass, Me
Me
Inert Organic Mass, M;
M;
Inert Inorganic Mass, Mu
Mii
Volatile Solids, MLVSS
MLVSS =
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1998
0.24 x Kex Ma x SRT
818 mg/I
TSS x (VSS Total x VSS Inert) x SRT/HRT
1,710 mg/I
TSS x (1 - VSS Total) x SRT/HRT + (Ma + Me)/10
1,180 mg/I
Ma + Me + M,
2,820 mg/I
Page 3 MCKINNEY.XLS

•
MLSS Concentration
Total Mixed Liquor Suspended Solids, MLSS
MLSS = MLVSS + Mil
4,000 mg/I
Effluent BOD
Effluent Soluble BOD5, F
F
Influent BOD5 mg/I / (Km x HRT) + 1
1 mg/I
Effluent TSS
Eff TSS = Expected effluent TSS from properly designed clarifier
< 30 mg/I
Sludge Wasting
Waste Sludge Rate, WS
04
WS = (MLSS, Ibs - Effluent TSS, Ibs) / SRT
= 1,685 lb WS/day = 764 kg/day
Sludge Flow Rate, Qws (Assume 10000 mg/I TSS from clarifier)
Qws = WS / (Sludge concentration x 8.34)
1
= 20,202 gal/day = 76 m3/day,
faq
7/22/99 Page 4 MCKINNEY.XLS
gm,Copyright Aqua -Aerobic Systems, Inc. 1998

OM
•
Mk
(041
Nitrification Requirement
Influent TKN Loading
Influent TKN = 500 lb/day = 227 kg/day
Nitrogen Utilized as a Nutrient
Based on 5% of the influent BOD5:
W' Nutrient-N
0.05 x Flow, MGD x Influent BOD5, mg/I x 8.34
E..,= 138 lb/day = 63 kg/day
a" Assuming 1 - 2 mg/I organic nitrogen in the effluent:
Refractory-N = 1.5 mg/I x Flow, MGD x 8.34
Refractory Organic Nitrogen
19 lb/day = 8.5 kg/day
Nitrification Requirement
m' Nite Req'mt = Influent TKN - Nutrient-N - Refractory-N
= 344 lb/day = 156 kg/day
m' Nitrification Capability
0.► Nite Cap. = Ibs NH3-N Nitrified / (Aeration hrs x Ibs MLVSS)
x 24 hrs/day x Ibs MLVSS
At 20 °C:
MP Nite Cap. = 2,269 lb/day = 1029 kg/day
At 10 °C:
Nite Cap. = 1,132 lb/day = 513 kg/day
7/22/99 Page 5 MCKINNEY.XLS
pa,Copyright Aqua -Aerobic Systems, Inc. 1998

Objective:
Design Data:
Mayodan WWTP, NC
WestRock Engineering
Activated Sludge Basin
Revision 1
To size Aqua -Jet aerators for an activated sludge basin.
Wastewater Parameters
Average Flow
Temperature
Influent BOD
Influent TSS
Influent TKN
Basin Dimensions
WS Dimensions
Bottom Dimensions
Water Depth
Side Slope
Volume
Material
Elevation
1.50 MGD
20 °C (summer, assumed)
10 °C (winter, assumed)
220 mg/1 (assumed)
220 mg/1 (assumed)
40 mg/1 (assumed)
= ft x 14679 ft
= 110ftx110ft
= 12.3 ft
= 1.5:1
= 1.5 MG
=ea;then—
= 571 ft
Scope:
Aqua -Jet aerators will be sized for an activated sludge basin. It is assumed that the wastewater is
domestic in nature with an influent BOD of 220 mg/1, influent TSS of 220 mg/1 and influent TKN of
40 mg/l.
Calculations:
Hydraulic Retention Time
HRT = 1.5 MG / 1.5 MGD x 24 hr / 1 day
7/22/99
Copyright Aqua -Aerobic Systems, Inc. 1999
24 hrs
Page 1
Mayodan2

McKinney Model
Refer to the attached McKinney Calculation for an explanation of this model.
VSS Total = 80 % (assumed)
VSS Inert = 40 % (assumed)
SRT = 24.3 days
MLSS = 4,000 mg/1
F/M = 0.06 1/day
Waste sludge = 1,685 lb WS / day
Sludge flow = 20,202 GPD (at 1% solids)
The effluent soluble BOD is expected to be less than the requirement.
Actual Oxygen Requirement
The oxygen demand is based on 1.25 lb 02 / lb BOD applied and 4.61b 02 /
lb TKN subject to nitrification.
For every mg of BOD applied, 0.05 mg of TKN is assumed to be used as a
nutrient. Oxygen must be supplied for the remaining TKN.
AOR (BOD) = 1.251b/lb x 220 mg/I x 1.5 MGD x 8.34 / 24 hr
1431b02/hr
Nutrient TKN = 0.05 mg TKN /mg BOD x 220 mg/1
11 mg/1
TKN Remaining = 40 mg/1 - 11 mg/1
29 mg/1
AOR (TKN) = 4.61b/lb x 29 mg/1 x 1.5 MGD x 8.34 / 24 hr
701b02/hr
Therefore:
AOR = 2131b02/hr
Field Oxygen Transfer Efficiency
FTE = SOTE x [(Cs x (3) - Cr] x 1.024(l-20) x a
9.09
7/22/99 Page 2 Mayodan2
Copyright Aqua -Aerobic Systems, Inc. 1999

aaa
,
where:
SOTE = 3.0 lb 02 / BI-IP-hr
T = 20 "C
Cs = 8.90 mg/1 (at 20oC and 571 It)
�3 = 0.95 (typical, assumed)
a = 0.85 (typical, assumed)
Cr = 2.0 mg/1
FTE = 1.81 lb 02 / BHP-hr
Power Requirement
Power (aeration) = 213 lb/hr
1.81 lb/BHP-hr x 0.92
128 HP
A mixing level of approximately 100 HP/MG is recommended to provide
complete mix conditions.
Power (mixing) = 100 HP/MG x 1.5 MG
150 HP
This leads to a recommendation of four (4) - 40 HP Aqua -Jet aerators.
Recommendation:
Four (4) - 40 HP Aqua -Jet aerators are recommended.
MAD
7/22/99 Page 3 Mayodan2
Copyright Aqua -Aerobic Systems, Inc. 1999

Objective:
Design Data:
Mayodan WWTP, NC
WestRock Engineering
Aerobic Digester
Revision 1
To size Aqua -Jet II aerators for an aerobic digester.
Sludge Characteristics
Maximum TSS = 2 % (assumed)
Wastewater Temp = 20 "C (assumed)
Basin Dimensions
Diameter = 75 ft
Water Depth = 15.5 ft
Volume = 0.41 MG
Material = concrete
Elevation = 571 ft
Scope:
Aqua -Jet II aerator will be sized for an aerobic digester. It is assumed that the maximum solids
concentration will be 2% and that the mixing demand will control the power requirements.
Calculations:
Power Requirement
It is assumed that the power requirement would be controlled by the mixing
demand. A mixing level of 175 HP/MG is recommended to provide complete
mix conditions.
Power = 175 HP/MG x 0.41 MG
72 HP
This leads to a recommendation of one (1) - 75 HP Aqua -Jet II aerator.
7/22/99 Page 1 Mayo_d2
Copyright Aqua -Aerobic Systems, Inc. 1999

Field Oxygen Transfer Efficiency
FTE = SOTE x [(Cs x [3) - Cr] x 1.024` 1-20) x a
9.09
where:
SOTE = 2.1 lb 02 / BHP-hr
_ T = 20 °C
Cs = 8.90 mg/1 (at 20oC and 571 ft)
0.95 (typical, assumed)
a = 0.85 (typical, assumed)
Cr = 2.0 mg/1
FAI
FTE = 1.27 lb 02 / BHP-hr
Oxygen Supplied
Oxygen Supplied = 75 HP x 1.25 lb/BHP-hr x 0.92
87 113 02 / hr
As long as the oxygen demand is less than the oxygen supplied, the
recommended equipment is expected to maintain aerobic conditions and
eliminate odors that are related to low levels of dissolved oxygen.
Recommendation:
One (1) - 75 HP Aqua -Jet II aerator is recommended. The minimum operating depth for
r=1 this unit is 5.5 ft.
MAD
7/22/99 Page 2 Mayo_d2
Copyright Aqua -Aerobic Systems, Inc. 1999

L-
1-- 1---- B— ----, I- -' 1-7-;
\MAT20W \LN(;\UWIi,\PI 4-L.UW'
EXISTING
DISTRIBUTION
BOX
EXISTING
INFLUENT
PUMPING
& WET WELL
EXISTING
MECHANICAL
SCREENING
0
J
0
0.625 MGD
to
N
EXISTING
AERATION
1.75 MGD
11 EXISTING
AERATION
0.625 MGD
SLUDGE RECIR.
EXISTING
AERATION
0.625 MGD
SLUDGE
EXISTING
CLARIFIER
EXISTING
CLARI—
FIER
RECIR.
EXISTING
CLARI—
FIER
DRAIN FROM DRYING BEDS
L
J
HEAVY 1
SLUDGE
EXISTING
SLUDGE
TANK
l;
EXISTING
AEROBIC
DIGESTION
EXISTING
DRYING
BEDS
1,1EXISTING Fa. EFFLUENT /1 001
.-{ CHLORINE
CONTACT DISCHARGE. 3 MGD
Figure 4.2
Schematic of Wastewater
Flow —
Mayodan Treatment Plant
Western Rockingham County BY:
Regional Wastewater Treatment WestRock Engineers
201 Facilities Plan

3
z
s
FROM DISTRIBUTION
BOX
PROPOSED
1.5 MGD
AERATION BASIN
PROPOSED
DIGESTER
TO PLANT
PROPOSED
1.5 MGD
CLARIFIER
EFFLUENT
PROPOSED
CHLORINE
CONTACT
FUTURE
1.5 MGD
AERATION BASIN
PROPOSED ,
SLUDGE
PUMPING
1
FUTURE
1.5 MGD
CLARIFIER
NOTE: ALL PROPOSED PROCESS UNITS
TO BE INTERCONNECTED BY PIPING AND
VALVES TO EXISTING UNITS FOR FLEXIBILITY
OF OPERATION.
Figure 4.3
Proposed Expansion—EDA—
Mayodan, NC WWTP
to 4.5 MGD
Western Rockingham County BY:
Regional Wastewater Treatment WestRock Engineers
201 Facilities Plan

•
LEGEND
• UNE N0. SYMBOL
PROPOSED YARD PIPING
EXISTING YARD PIPING
o EXISTING MANHOLE
• PROPOSED MANHOLE
•—•—•—•—• EXISTNC FENCING
4 DOSTINC HYDRANT
• NEW YARD HYDRANT
CATE VALVE
•—•—•— PROPOSED SILT FENCE
EMSTIN0 CONTOUR
PROPOSED CONTOUR
500
I . 400
•
.
I
• 300
I
•
INMMN 3 I
557.03
UHIIO
I 558.61
EXISTING
SO2 •
INJECTION 1
MANHOLE ,1!
EXISTING OFTI IENT
SAMPLER TO BE
RELOCATED TO NEW
CONTACT BASIN f3
CIIS11NC
CHLORINE
CONTACT /1
MH 11
I . 548.40•-•
0
EXISTING
BAR SCREEN
Hi
°546.60
E10STN0
AE'TAT10N
BASIN /1
O 100
380 TMA' RNFR
►IH/I2
ON 545.47
INFLUENT
STATION cOSTNO
ST IBUTION BOX
EDGE OF
DUSTING
GRAVEL
PAVEMENT
AERA
/3
PROPOSED
oGE WADI
r
G
PROPOSED SE
MANHOLE /1
RDA ELEV! 5
DM 559.32
•G
VAULT MANHO ' /2 CL2
200 300 400 500
NOTE: 100 YEAR FLOOD ELEVATION: 571.00
LAYOUT PLAN
°POSED DOGHOUSE
ELEV: /572.50
302.20
600 700 \ 600
GRAPHIC SCALI
900 1000
(WINS
1100
C
I pi
11r6 M01. Tool
0011111131
COL
ar•
OFr
SOL
As •10M1
."'tl G-5
17
•

EXISTING
DI PUII 11O MD ols noel BOX
DOWENT,00 rFAR FtCOo EJ EV 571.0 j5 1 I1n
r-, r, --- L.,It--� 11 II
ICOLLE .11 1,
L 1 _ jJ 1
1
I 1 11 Ii' 1—T T
11 1
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1 p1 11,1< FiIJ
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r=
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auk f�
1 1
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I
OWNS 1 tl C
PROPOSED AERATION RASIN 14
7o.e II74.
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rr
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_JL• - _lima_
PROPOSED
/2
r e1r. WAX MCM:tARnr
COS2NG I
11
COSMO rI "
lHANH LLE jj
.._..
v.a 1 /
,.
EXISTING
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al
1—,
1
PROPOSED CLARIFIER /,f
4
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=-*-JL_abm__ ->` -C=L-.=air-- - - - - 3
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e
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11
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11
11
Il
Il
II
Il
11
11
11
II e
./, II
I li
a• II
rl---T------r-
COStNIG
SLUDGE
DRYING BEDS
acoma {Mp1OLE 1 �1
L L-_1__J___1
ast.7sL' 1'"'
I L 1LL1J1J_U_L_
i
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Part
raft
Mccnael F Easley, Governor
WrlGam G Ross Jr , Secretary
North Carolina Department of Environment and Natural Resources
Gregory J Thorpe. Ph D
Acting Director
Division of Water Quality
September 7, 2001
Ms. Debra Cardwell, Town Manager
Town of Mayodan
210 West Main Street
Mayodan, North Carolina 27027-2706
SUBJECT: Approval
Western Rockingham County
Regional Wastewater System
201 Facilities Plan Amendment
Project No. CS370466-04
Dear Ms. Cardwell:
The Construction Grants and Loans Section of the Division of Water Quality has
completed its review of the Western Rockingham County Regional Wastewater System 201
Facilities Plan Amendment. The town of Mayodan's 3.0 mgd wastewater treatment plant will be
upgraded and expanded to a 4.5 mgd regional facility to accommodate the flows from the towns
of Madison and Stoneville, which will abandon their existing wastewater treatment plants and
install transport facilities so that the flows can be treated at the regional facility. Madison will
install a 1,735-gpm pump station at the existing treatment plant site to transport wastewater to
the regional facility via 9,0001.f. of 12-inch force main. Stoneville will transport wastewater to
the regional plant by installing a 480 gpm pump station with 5,150 1.f. of 10-inch force main, a
620 gpm pump station with 5,2801.f. of 10-inch force main, and 3,500 1.f. of 18-inch gravity
line. Stoneville's transmission facilities will connect to 2,455 1.f. of new 15-inch and 170 1.f. of
new 16-inch gravity pipe that will be installed by Mayodan. This gravity sewer pipe will
connect to an existing line that will be replaced with 9,255 l.f. of 24-inch gravity pipe. The
proposed Mayodan transmission facilities will provide a connection for Stoneville to deliver
wastewater to the regional treatment plant. Madison and Stoneville will also perform sewer
rehabilitation/replacement to reduce infiltration/inflow (I/I) and this work will consist of
Stoneville installing 5001.E of 18-inch replacement line, waterproofing/regrouting/raising
manholes, repairing pipes that cross creeks, and repairing cleanouts; and Madison replacing a
segment of the Big Beaver Island interceptor with 3,0001.f. of 15-inch pipe and 500 1.f. of 16-
inch pipe and replacing 15 manholes. The estimated project cost is $7,061,655.
Oler
Construction Grants and Loans Section 1633 Mail Service Center Raleigh, NC 27699.1633 [phone]
E-Mail Address www.nccgi.net FAX (919) 715`6229
4 7A
L'E`.=
Customer Service
1 800 623-774s

The subject Western Rockingham County Regional Wastewater System 201 Facilities
Plan Amendment is hereby approved.
If you have any questions concerning this matter, please contact Mr. Larry Horton, P.E.
of our staff at [phone].
Sincerel
ohn R. Blowe, P.E., Chief
Construction Grants & Loans Section
KLH:dr
cc: Bob Wyatt, Town of Stoneville
Michael Brooks, Town of Madison
Senator Phil Berger
Representative Wayne Sexton
Representative Nelson Cole
Bill Lester, Hobbs, Upchurch & Associates
Winston-Salem Regional Office
Daniel Blaisdell, P.E.
PMB/DMU/FEU/SRG

July 20, 2001
s;•Debra Cardwell, Town Manager
own of Mayodan
19 West Main Street
r•
ayodan,,NorthCarolina 27027-2706
Michael F. Easley
Governor
William G. Ross, Jr. Secretary
Department of Environment and Natural Resources
Kerr T. Stevens
Division of Water Quality
J U L 2 6 2001
SUBJECT: FNSI Advertisement
Wastewater Transport/Treatment Facilities
Project No CS370466-04
i0, to inform youthat the Finding of No.Sigmficant Impact (FNSI) and the
eiital assessment, have been submitted to the State Clearinghouse. The documents•wi
iced: for thirty (30) calendar days in the N.0 Environmental Bulletin: Advertising the;,
wired prior to a local unit of government receiving:financial support under. the State
g Fund You will be informed of any significant, comment or,public objection when the
ement.penod is completed...
is
<<A�copy of the documents -is transmitted for your record. The`documents should be made
availab1eSt 5 the public: If there are any questions, please contact me at [phone].
Since ely,
Daniel M. Blaisdell,.P E., Assistant Chief
for Engineering: Branch
unen (all cc'.$)
Wuistori-Salem`Regional Office ,
o bs, Upchurch & Associates; Bill'Lester,
't Qwn;of Madison, Sharon Garner
o of4Stoneville, Bob•Wyatt
1nr
ator Phil Berger
esentative Wayne Sexton
�esntative Nelson Cole
°�DamellaIsdell, P.E ti r1i,Y4fL
egi uttOrlit h.D 1� �?9�raraY+rye
♦
°� _ �.,.'.•vY,'�{`?' ;..la ;�' "Y..,i.�si.niFi. f �: �'. 64i:
800 62327748
Vto
ref);.‘
c + 5
ttudtOn_Grants &Loans 4eclwn•f1633 Zenrice!pc.i4ps
919=71516229 Dr E-M.tjaa■il Addies
ht. 4VVOZ
•
27699-1633 A733150

FINDING OF NO SIGNIFICANT IMPACT
AND ENVIRONMENTAL ASSESSMENT
CONSTRUCT REGIONAL WASTEWATER TRANSPORT AND TREATMENT
FACILITIES FOR THE TOWNS OF MAYODAN, MADISON, AND STONEVILLE
ROCKINGHAM COUNTY, NORTH CAROLINA
RESPONSIBLE AGENCY: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT
AND NATURAL RESOURCES
CONTACT: JOHN R. BLOWE, P.E., CHIEF
CONSTRUCTION GRANTS AND LOANS SECTION
DIVISION OF WATER QUALITY
1633 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1633
TELEPHONE NO. [phone]
JULY 20, 2001

IMO
FINDING OF NO SIGNIFICANT IMPACT (FNSI)
Title VI of the amended Clean Water Act requires the review and approval of environmental
information prior to the construction of publicly -owned wastewater treatment facilities financed
by the State Revolving Fund (SRF). The proposed project has been evaluated for compliance
with the North Carolina Environmental Policy Act and determined to be a major agency action
which will affect the environment.
Project Applicants: Towns of Stoneville, Mayodan, and Madison
North Carolina
Project Number: CS370466-04
Project Description: The town of Mayodan's 3.0 mgd wastewater treatment plant will be
upgraded and expanded to a 4.5 mgd regional facility to accommodate the
flows from the towns of Madison and Stoneville. Both Madison and
Stoneville will abandon their existing. wastewater treatment plants, and the
necessary transport facilities will be installed so that the flows can be
treated at Mayodan's treatment plant. Additionally, sewer
rehabilitation/replacement work will be performed by the towns to reduce
the amount of infiltration/inflow.
Total Project Cost: $7,061,655
State. Revolving Loan: $5,068,655
Economic Development Administration: $1,000,000
Clean Water Management Trust Fund: $ 643,000
North Carolina Rural Center: $ 350,000
Mitigative measures will be implemented to avoid significant adverse environmental impacts,
and an environmental impact statement (EIS) will not be required. The decision was based on
information in the facilities plan, a public hearing document, and reviews by governmental
agencies. An environmental assessment supporting this action is attached. This FNSI completes
the environmental review record, which is available for inspection at the State Clearinghouse.
No administrative action will be taken on the proposed project for at least thirty calendar days
after notification that the FNSI has beenpublished in the North Carolina Environmental Bulletin.
Sincerely,
Kerr T. Stevens, Director
Division of Water Quality

September 4, 2001
. ,_•• • 4 •
..‘ Mayodan, N.C.4.27027
••..•,
. • .. • .
- • . • . • .
SUBJECT: Compliance Evaluation Inspection Report
•. • • •
04.:70371.11. .9f Mayodan WWTP
• and Land Application Program
'INTPDES Permit No. NC0021873
and Land Application Permit No. WQ0002672
Rockingham County
Dear Ms. Cardwell:
The subject inspection was performed on August 28, 2001, by Mr. David Russell with our
Winston-Salem Regional Office. Mr. Jamie Whitten, ORC was present.
The inspection consisted of two basic parts: an on -site visit and an in -office review of facility
•qp • •
self-thonitorin ata.
Self-rnsopOring,datOuly 2000,thr.ough June 2001 shows - effluent limits were'met throughout
‘•-•
the, period Witht'a few: exceptions Notices of. Violation. were sent • for BOD':'eXteedances in ,
. .. .
December an armary. - A,TSS violation occurred in May and another Notice of Violation was sent.
' - • . ,-...,$),*.•;.",., ... ,.. •• , . : . •• •,..,:- - • . • . .. • . :. -; • .. • . ,...,. i • . .
You:. are. rerrUnctecl that: under current policy, civil penalties will be assessed for significant
exceedances of monthly average; weekly average or • maximumlimits.
••:,.
•
•
Ais;3410i.,,iiig41.00i1.01.t1P10*.00J.8q0 an average 00StYf,'.1,47 mgctfcr theerod July2000:
;t0:ttheinfluent
fldw1 TI otlit'o1d" aratkrn basin was being used for s1ude storage Over halfbf the treatment
Ca0Citi,.fOr ”itelefattation.basin/clanfiand is presently:.
Futurierirps fOIT:-t4e.facility'WOOld•be to exPand•toi.44;mgd and.take':thiWistevvater• flow
. ,
from. Madison:4nd Stoneville.
• •
' • ' •
. •The Sykteni. is V*57,40i.e r4t. For thelpqm4.July:..:2900.thro.ugli My.12 ere werepo
. .•
••••• #14,101:4: vitagons;:,'ipicp,:deficiencies, were found, theitiperaqop of the p, ant: except the
, • • • . • z...5 • . • • 7- ,';'. i•- '• " • .
..nlectiaiiiCal.b07§:dieert.Wat. out of .serViCe. This should be repaired shortly since money has been
for tlits.14foject:
•
N C DMsion ofWateruaIity- .;
585 iliaughtoWtrii0tINInstcirj 'Salem, NC 27107 ,
Phone [phone]; • Fa(336) 771-4630; • Internet httri://wq.ehnr.state.nc.us
1 800 623-7748

•
r
•
;Ms. Debbie Crdwe11.
Seember 2001
. :
Page #2
At the time of this visit, no sludge receiver sites were visited since no sludge had been
applied sinceApril 2001. The land application is contracted to Southern Soil Builders, Inc Mr.
Whitten seemed pleased with the service provided by the company. .
It is apparent Mr.' Whitten is very conscientious in the proper operation of all. facets of
wastewater treattrient. • •
In summary, there were no on -going problems observed with the wastewater treatment
program.
Should you have questions, please call Mr. David Russell or me at (336-771-4600)
41s1
1=1 cc: Jamie Whitten
Rockingham County Health Department
Central Files
WSRO
•
•
'1=1
Sincerely,
Laft,--b • C.0V-L-
Larry D. Coble
Water Quality Supervisor

• ' Ur�iid agate Environmental••
Prateeooe+ Ap.r+.
�y ..WhiNngton, o:C. -2O 6o .��! ;�tt.n
1-IK�Iy �.4 .. j-•. •ti• •V •!
�/, �I-/`i►� < :.:; Inspection Re
z. WateirCompisiance;`fnsp Report
p
• •r•*fe.'4.1
ectioii A:: Natioria! Data System Coding (i.e.; PCS) '
hno/da - '
yr y.;
�v111o181�81'7
Inspection Type
18�
21! I11.I11.1.11111111 :11
Inspection Work Days Facility Sett-Monttorttng Evacuation Rating '- B1 . OA
671 1 l 169 ' �_ _ • ' S . 70 } ' 711, .. 72 73 I
IN 174
.. Section B:. FadCtY` Data
• Remarks
1111111/11
Nemo and Location of•Facility Inspected For indirstr a/ users discharging to POTW, also
include POTW name and ,NPDES permit dumber);; �, " ' '
'Me.; Cr.
ax Number(s)•
•5�1-7 5�33
L. Name. Address of. Responsib e•OffictetlTtle/Phone and Fax Number •
.954e2
D-(p West f,#bi Ststee ` •
1'1'4 044,-1 /y C. )- v:7
030 L?-%- 0)`5//
i
rya
rwl
f•
Iris
, r"s►
•
II�•1
dON v 1a odR
Name(s) of On -Site Rep entative(s)rntte(s)/Phoseard
c-J,144; e 4)ki• !Ai -10 R c• 33
4' :q.
Permit
Contacted
❑ Yes Or No
Foi n Approved s1
OMB •No. 2040-0057
Approval expires 8-31-98
Entry Time/Dete.
o/oSAm•
Inspector
19LSi.
Fac Type
20 LA
I•l11.•"I.1.111166
Reserved
7511 1'•1 1 1 1 180
Permit Effective Date
Exit.Tirne/Date`og
Permit Expiration Date
Other Facility Data
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Flo• *fm
M e asure9r1,t/
�PRi1 IIJJ
Records/Reports S Self -Monitoring Program
Facility Site Review 4 Compliance Schedules
Effluent/Rece vir►g .Waters. �A Labotatory
S- SAtiVi4t'fb e y 4 LC "• tv..s •NsiAcT0ft i lr� - i!•i.9rel lw. y
DM �S1n(ma . �' "�` % Attach" ed
' Saction� r ry:.o�.,�ndngslCocrin�ents=��.
Plo Sly Aueit;0y
Flow
A ob.'
.�l
• :•'1st.•
3 0
a,y
•
3,0
S.
$
Operations &
Maintenance
Sludge Handling/Disposal
Pretreatment
Stone Water
AP-,wa'et•,;/,4/1zd- N/1-
rtlo:at sheets of narrative •and"c.
174./
mA yJ/i��M l%
I4rl%.,r
/.44114414.
CSO/SSO (Sewer Overflow)
Pollution Prevention
Multimedia
Other:
T' ff 'ih (44�e
c st ; .$' 1 ecessa y .
W,i# ••alA-d/,SO :,NJ ;cie•.. OVurry•..i
Name(s) Arid SignetlA(sf of irispectort(s)
'.'::/ • �
•.
r r
.�.v• ,yr-..
•
•
- •- •
•Agency/Officerhone and Fey► Number's
Q/0)7C0D
Date
•
C�fP
v
•
..i
.\4011410 *Si
4
.
Signature of Management, a A Reviewer
Agency/Office/Phone and Fax. Numbers , •
, :
Daate
• .

r1
•N
Ncrsrri CA O_NA Danner OF .
ENVIQnMiI NT 41JCs NAT:IPAL RCIVII I4c'Lr.
ischarge .Compliance Inspec
• WQ Permit Number fdtP appo72
� � Permittee d� M.
Issuance Date .
Expiration Date
Soc Issuance Date
Permittee Contact ,/
ORC Certification #
/E 7 /8
County /CU
Npdes Numbers) ,'/C: 06'
Soc ExpirationDate
(ortd �I'sj eflone Permittee Contact6Z?
ORC Name jj,,);e <' - ed
24hr Contact Name ��, e:.: :OA; I ,N
Phone ORC (33i 9a.7 5723Ct
Phone 24hr33G45' 7 3 — 20Qo
Reason For InspectionIII/Routine 0 Complaint 0 Follow -Up 0 Other..
(Select One)
Type Of Inspection (Select One) Q, Collection System 0 Spray Irrigation l! ' esidual .
'nspection Summary
q.,
Inspector's Name.
Phone .inspector
Inspection:Date
Pig
2OOf .
Inspector's Title fr/ai
• Fax, Inspector
page 1

7.1
b.. Salmonella ( Class A all tests must be < 3MPN / 4 grams dry )
c. Time / Temp on:
• Digester (MCRT:) ❑ Compost ❑ Class A lime stabilization
d Volatile Solids Calculations:
e. Bench -Top Aerobic/Anaerobic digestion results.
f. pH records fo Lime,Stabilization (Class A or B)
M3 Treatment
Equipment
Additional
Equipment
e
Non Discharge Compliance .= Residua! Inspection
•
Land Application 0 Distribution and Marketing
Record Kee ' in
Copy of current permit available?.
Current metals and nutrient analysis? (see permit for frequency)
a. TCLP analysis? :.
• b. SSFA ( Standard Soil Fertility Analysis)?
Nutrient and
Metal loadingcalculations to determine most limiting parameters? YTD!
Permittee 14/3 yo 4: 4iJ. •
Permit Number WO 0007-67-
Inspection.Date 0/0 029
Hauling:: Records?
# gallons / tons hauled during the calendar year to date?
Field Loading Records?
Records- f lime purchased?
Fields
❑ Pathogen and Vector Attraction Reduction (if applicable)
Are Operation and Manintance records present?
Are Operation and Manintance records Complete?
Calibration of Land Application Equipment?
Pathogen and Vector Attraction (if applicable):
a. Fecal coliform SM 9221 E ( Class A or B )
(Yes QNo
aWes QNo
tQ4e
0-No
QYes QNo •
(D4es QNo
(es QNo
Yes QNo
es QNo
es QNo
Q Yes QNo I
!Q Yes No
Q ( Class A, all test rn.ust be <1000 MPN / dry gram )
O(Geometric mean of.7 samples per monitoring period for Class B <2.0'106 CFU / dry gram )
Fecal coliform SM 9222 D ( Class B only)
Q ( Geometric mean of 7 samples per monitoring period for Class B <2.0'106 CFU / dry gram
Q Yes O No
0Yes QNo
Q Yes. O`
0 Yds.. ; 0 No
QY,es;:: QNo
'i"r"�Digeefion ❑ Alkaline;Stabilization (Other)
Aeo
������:�>>.,. - .�. �M_. Com ost; Windrow)
❑:Auto T.ftermophilip. Aerobic Digestion ❑ pas..( i
s,.=• E: tompail (Aerated Static Pile).
Anaerobic Digestion ❑ p
❑ _ ❑❑ �;
❑Other
AlkatineStab.lization (Lime)
page 2

�on Discharge Compliance Residual Inspection
.B*/ Op/1'N
Trans ort
y
Permit in transport vehicle?
Permittee
Permit Number
Inspection Date
Q;
t#/212") N Zvo /
;
1/eAid.ft. No t At.
Spill control plan in vehicle?
Does transport vehicle appear to be maintained?
►ar Storage
1
❑ Lagoon ❑ AST 1ST
r.;' Number of months storage?
Spill control plan on site?
r=1 If Applicable:
Is lagoon Tined?
r�r
o/o8 -74
(QYes QNo'°''- I
(OYes QNo
Q Yes QNo
0 Septic Tank ❑ Drying Beds ❑ Concrete Storage Pads
Above Ground Tank (❑ Aerated ❑ Mixed I Aerated Hp: 1
Under Ground Tank M"Aerated 0 Mixed 1 Aerated Hp: I 75
Sampling
1.1 Describe Samplin :�/4-�Q� ,0 klsiNmg.. l,4.l�v /rL �-.�,
Q Yes ( I to
(Q Yes QNo
Mixed Hp:
Mixed Hp: 17S
Is sampling adequate?
Is sampling representative?
Disposal �
�' cls /)�1'�" [/rs Ace
2
f Q
iN 4�i / 2.001
Buffers Adequate?
Cover Crop Type Specified in Permit?
Documented exceedence of PAN limits?
Site Condition adequate (improvement)?
0.1 Signs of runoff / ponding?
Is the acerage specified in the permit being utilized?
Pel Is application equipment present and operational?
Are there any limiting slopes on disposal field?
(10% for surface application)
(18% for subsurface application)
Are monitoring wells called for in permit?
Access restrictions and / or signage?
Permit on site during application event?
Odors or Vectors present at land application site?
Nutrient / crop removal? '
/1Q
taYes QNo
le -Yes QNo
O Yes QNo
10 Yes QNo
Q Yes QNo
Q Yes QNo
p Yes O No
�0 Yes O No i
1
Q Yes QNo
Q Yes O. No
QYes 0No
QYes QNo
Page 3