NC0050342_Permit (Issuance)_19990614

NPDES DOCYNENT SCANNIN4i COVER SHEET
NC0050342
Muddy Creek WWTP
NPDES Permit:
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:
June 14, 1999
Thies document iia printed on reuse paper - ignore any
content on the rew-ere a side

•
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
June 14, 1999
Mr. Thomas W. Griffin, Assistant City Manager
City of Winston-Salem
Post Office Box 2511
Winston-Salem, North Carolina 27102
Dear Mr. Griffin:
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Issuance
Permit Number NC0050342
Muddy Creek WWTP
Forsyth County
In accordance with the application for discharge permit received on February 3, 1998, the
Division is forwarding herewith the subject state - 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 December 6, 1983.
In accordance with your comments on the draft NPDES permit received on May 22. 1999,
the following modification has been made:
• The total residual chlorine limit has been removed from outfall 002 requirements per the
settlement agreement resulting from the petition for contested case filed by Winston-
Salem upon issuance of the previous permit:
With respect to your comment regarding the toxicity testing language. paragraphs 3 and 4 of
the existing language seem to make the point that was made in your comment letter. Aquatic
toxicology staff have reviewed the toxicity testing language and have determined that no modification
is necessary.
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 a demand is made, this permit shall be final and binding.
This permit does not affect the legal requirements to obtain other permits which may be
required by the Division of Water Quality or permits required by the Division of Land Resources,
Coastal Area Management Act. or any other Federal or Local governmental permits which may be
required.
1617 MAIL SERVICE CENTER. RALEIGH. NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 10% POST -CONSUMER PAPER

If you have any questions or comments regarding these speculative. limitations. please do not
hesitate to contact Mark McIntire at telephone number [phone], extension 553.
Sincerely
Original Signed By
David A. Goodrich
Herr T. Stevens
Cc: Central Files
NPDES Permit File
Winston-Salem Regional Office, Water Quality
Aquatic Toxicology Unit
EPA. Roosevelt Childress
Point Source Compliance/Enforcement Unit

Permit No. NC0050342
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,
City of Winston-Salem
is hereby authorized to discharge wastewater from a facility located at
Muddy Creek Wastewater Treatment Plant
Off Cooper Road
Winston-Salem
Forsyth County
to receiving waters designated as the Yadkin River (outfall 001) and Muddy Creek (outfall 002) in
the Yadkin -Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective July 1, 1999
This permit and authorization to discharge shall expire at midnight on June 30, 2004.
Signed this day June 14, 1999
Original Signed By
David P. Goo rich
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

r
Permit No. NC0050342
SUPPLEMENT TO PERMIT COVER SHEET
City of Winston-Salem
is hereby authorized to:
1. Continue operation of an existing 21.0 MGD wastewater treatment system consisting of bar
screens, grit chambers, primary clarification, three aeration basins, secondary clarification.
chlorination. dechlorination, instrumented flow measurement, anaerobic sludge digesters,
gravity thickener, sludge storage lagoons, belt filter press and solids blending tanks located at
the Muddy Creek WWTP off of Cooper Road in Winston-Salem, Forsyth County; and
2. Discharge from said treatment works at the location specified on the attached map into the
Yadkin River (outfall 001) and Muddy Creek (outfall 002), both of which are classified WS-
IV waters in the Yadkin -Pee Dee River Basin.

-SOO • .-_--
- •
••Tr ''•••
• - •
s, • ..-ntetS
SCALE 1:24000
Latitude (001): 35°55'51" Sub -Basin:
Longitude (001): 80°22'09" Ouad #:
Latitude (002): 36°59'37" Permitted Flow:
Longitude (002): 80°22'53"
Receivine Stream: Yadkin River (001), Muddy Creek (002)
Stream Class: WS-IV
03-07-04
D17NE
21.0 MGD
City of Winston-Salcm
NC0050342
Muddy Creek Wastewater Treatment Plant

A (1) . EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
Permit No. NC0050342
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 001-
Wastewater Treatment Plant Effluent. Such discharges shall be limited and monitored by the Permittee as specified below:
:EFFLUARACTERISTCS
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40.0 mg/L
_
Daily
Composite
I, E, U. D
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
I. E
NH3-N (April 1 - October 31)
14.0 mg/L
Daily
Composite
E, U, D
NH3-N (November 1 - March 31)
Daily
Composite
E. U. D
Dissolved Oxygen'
Daily
Grab
E. U, D
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
Daily
Grab
E. U, D
Total Residual Chlorine
28 µg/L
Daily
Grab
,
E
Total Nitrogen (NO2+NO3+TKN)
Weekly
Composite
E
Total Phosphorus
Weekly
Composite
E
Temperature
Daily
Grab
E. U, D
Conductivity
Daily
Grab
E. U, D
Zinc
Monthly
Composite
E
Chronic Toxicity'
Quarterly
Composite
E
pH5
I Daily
Grab
E
NOTES:
Sample Locations: 1 — Influent. E — Effluent, U — Upstream at idols Dam; D — Downstream 0.26 miles below US Hwy 64. Instream sampling requirements are provisionally waived
in light of the permittee's participation in the Yadkin -Pee Dee River Basin Association. Should participation in the Association cease. all instream sampling requirements are
immediately reinstated. Should instream sampling be reinstated, grab samples shall be collected 3/week during the months of June, July, August, and September and weekly
during the remainder of the year.
2 The monthly average effluent CBOD5 and Total Suspended Residue concentrations shall not exceed 15% of their respective influent values (85% removal).
J The daily average dissolved oxygen concentration in the effluent shall not be Tess than 5.0 mg/L. Effluent samples shall be taken prior to entering the 5 mile outfall line.
4 Chronic Toxicity (Ceriodaphnia) ChV @ 5.5%; January, April, July, October; See condition A(3) of this permit.
5 The pH shall not be less than 6.0 standard units or greater than 9.0 standard units.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER TIIAN TRACE AMOUNTS.

,4
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A (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
Permit No. NC0050342
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 002-
Wastewater Treatment Plant Effluent Overflow. Such discharges shall be limited and monitored by the Permittee as specified below:
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Flow (MGD)
Continuous
Recording
I or E
CI3OD, 5-Day, 20°C2
25.0 mg/L
40.0 mg/L
Daily
Grab
1. E
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Grab
I, E
NH3-N (April 1 — October 31)
14.0 mg/L
Daily
Grab
E
NH3-N (November 1 — March 31)
Daily
Grab
E
Dissolved Oxygen'
Daily
Grab
E
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
1
Daily
Grab
E
Total Residual Chlorine
Daily
Grab
E
Total Nitrogen (NO2+NO;+TKN)
Weekly
Grab
E
Total Phosphorus
-
Weekly
Grab
E
Temperature
Daily
Grab
E
Conductivity
Daily
Grab
E
Zinc
Monthly
Grab
E
PH4
Daily
Grab
E
NOTES:
Sample Locations: I — influent. E — Effluent
2 The monthly average effluent CBODS and Total Suspended Residue concentrations shall not exceed 15% of their respective influent values (85% removal).
3 The daily average dissolved oxygen concentration in the effluent shall not be Tess than 5.0 tng/L.
9 The pH shall not be less than 6.0 standard units or greater than 9.0 standard units.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
THE WINSTON-SALEM REGIONAL OFFICE SHALL BE NOTIFIED IMMEDIATELY UPON ACTIVATION OF OUTFALL 002.

Permit No. NC0050342
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (3). CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) — 21.0 MGD
The permittee shall conduct chronic toxicity tests using test procedures outlined in the "North Carolina Phase
II Chronic Whole Effluent Toxicity Test Procedure" (Revised -November 1995) or subsequent versions.
The effluent concentration defined as the Instream Waste Concentration (IWC) shall be 5.5%. The chronic
value 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 presence of 48 hour acute toxicity will be determined using Fisher's Exact Test
at 48 hours from test initiation. The definition of "detectable impairment," collection methods, exposure
regimes, and further statistical methods are described by the document referenced above.
The permit holder shall perform at a minimum, quarterly monitoring using these procedures to establish
compliance with the permit condition. The tests will be performed during the months of January, April, July,
and October. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent
discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter measures 48 hour acute toxicity or a
chronic value less than that specified above, then multiple concentration testing shall be performed. at a
minimum, in each of the two following months.
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 THP3B for
the Chronic Value and TGA3B for the 48 hour Acute Toxicity measure (Pass/Fail). Additionally, DWQ Form
AT-3 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, NC 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 all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste
stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating
the facility name. permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a valid test is submitted. Upon submission of a valid
test, this monthly test requirement will revert to quarterly in the months specified above.

Permit No. NC0050342
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (3). Continued
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.

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
July 12. 1999
Mr. Thomas W. Griffin. Assistant City Manager
City of Winston-Salem
Post Office Box 251 1
Winston-Salem. North Carolina 27102
Dear Mr. Griffin:
VA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
Permit Number NC0050342
Muddy Creek WWTP
Forsyth County
On June 14, 1999 the Division of Water Quality issued NPDES Permit No. NC0050342 to
the City of Winston-Salem for its Muddy Creek WWTP facility. In response to your request the
permit has been revised to incorporate a clarification to the toxicity language. Specifically,
compliance with the toxicity testing condition has been defined as a quarterly average chronic effect
value greater than or equal to 5.5%. Although compliance is currently based on a quarterly average. it
should be noted that in the near future compliance will be based on individual test results while a
quarterly average will be used to assess civil penalties.
Please find enclosed amended permit pages. These pages should be inserted into your permit
and the old ones discarded. All other terms and conditions contained in the original permit remain
unchanged and in full effect These permit clarifications are issued pursuant to the requirements of
North Carolina General Statutes 143-215.1 and the Memorandum of Agreement between North
Carolina and the U. S. Environmental Protection Agency.
If you have any questions or comments regarding these speculative limitations, please do not
hesitate to contact Mark McIntire at telephone number [phone], extension 553.
Sincerely
fev1( T. Stevens
Cc: Central Files
NPDES Permit File
Winston-Salem Regional Office, Water Quality
Aquatic Toxicology Unit
1617 MAIL SERVICE CENTER. RALEIGH. NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 10% POST -CONSUMER PAPER

Permit No. NC0050342
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (3). CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) — 21.0 MGD
The permittee shall conduct chronic toxicity tests using test procedures outlined in the "North Carolina Phase
11 Chronic Whole Effluent Toxicity Test Procedure" (Revised -November 1995) or subsequent versions.
The effluent concentration defined as the lnstream Waste Concentration (IWC) shall be 5.5%. The chronic
value 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 presence of 48 hour acute toxicity will be determined using Fisher's Exact Test
at 48 hours from test initiation. The definition of "detectable impairment," collection methods, exposure
regimes, and further statistical methods are described by the document referenced above.
The permit holder shall perform at a minimum, quarterly monitoring using these procedures to establish
compliance with the permit condition. The tests will be performed during the months of January. April, July.
and October. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent
discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter measures 48 hour acute toxicity or a
chronic value less than that specified above, then multiple concentration testing shall be performed, at a
minimum, in each of the two following months. Compliance is defined as a quarterly average chronic effect
level equal to or greater than 5.5%.
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 THP3B for
the Chronic Value and TGA3B for the 48 hour Acute Toxicity measure (Pass/Fail). Additionally. DWQ Form
AT-3 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
4401 Reedy Creek Road
Raleigh, NC 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 all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste
stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required.
the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating
the facility name. permit number, pipe number. county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a valid test is submitted. Upon submission of a valid
test, this monthly test requirement will revert to quarterly in the months specified above.

. Permit No. NC0050342
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (3). Continued
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.

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. • . • - • - 4 • ' . • • MUM. NOTICE -
OF NORTH CAROLINA'
RONMENTALMANAGEMENT COMMISSION
POST OFFICE BOX29535 ..•z• .
RALEIGH, NORTH CAROUNA 27628435:35 retetit-ii;e%
7A NOTIFICATION OF,INTENT.TO ISSUE A STATE NPDES
On .thesiebt.thafouglOtaff revlew and appicalion-of Article 24,at
Chapaa4148,..Geoeial Stputee-of North Carolina, Pubic Lew 92-503 and
Other *fit' rstanaaids aril teijulatIoneiytteNattt Caroina.Environmen-'
tal Maragerrient CommissionprOlidses to Orme apermit to &Scheme to
the *Sons -fisted beioireffectIve•5/25/99 and lubjectlo Special condi-
Persons wishing to catmint upon or °bleat to the proposed determina-
tions are invited to subrnitsame in writing to the above address no later
8'2115409. Alt comments received prior to that date wilhe conaidered.
In the forrnitallokof 8nal determinationsregarding the tierrnit.
A pubic meeting may be held where the Directr cf the DiViSiCfl 01 Errii-
ronmental Managernerit finds a sigrtficant degree of public interest in a
•
Pk.A•ki".
t.t.Mtitrg
•
A copy of the draft pemet is available by ivriting wailing the Mitsui a
Environmental Management, P.O. Box 29535, Raleigh, North Gamine . - - ' • - • •
27826-0535- 919 7U-7015,r *i•.4 • •••• - ••••,‘ ' ' ••it-e
The.applIcaliorrend tither TrifOnitation may beinspectedlitthese 1i:ca-
tions dLring'neimarof8ursCopofthe inforrhation tin 16e are
amiable upon request and payment of the toss of reprodu Ai
such comments or recti.ests regarding aproposed perrhit shotOd make
referenda to' the NPDESpermt number ft,*d
••, •
A.,Gotidrictr fcc-Kaiit-Stevens: Dire;tor".?
PUBUC FIOI10E OF. INTENT TO ISSUE A
-..-7:•:`• • STATE NPVES PERMIT TO THE FOLLOWING:fri4fe,..55
•:.
tr•••••••:
•
zr,.. • •
.:,2......1-,1•;•-•^:rAtd. .
1. NPOES No. NC0055093. R.J. Reynolds Toba= Company, P.O. Box . , ,, - - •
2959, Winston-Salem. N.C. 27102 has applied for a.permit renewal for a • ....."--..4.,t...:-a.a.t:SV.•,.."..r,,- -. ' :.' — • --t. 7 '
tacilY ter locate-teothath:mbralcIlieq. ., 4140ikiriwilf52,1-. Obath:i• f=....--_---...,.,:..--_,.....--....,..,.....,..,:,—r-;:.......,„.. ..,....
v
ile. rorsyth, t_The facility: discnarges treated industrial was'evra- .:. --- • - - - • - . -. _ tan:pow:atilt " ilariters-CdeVa azisTC's-lreeirein the,-Yaolcin-p"'
. .... _ . . . ....... . .4,7_ ,....
Pee SeieRViir ELia.h.l.F&earrie pararnete__mthe avallableloaddspecffy .. ....,- .s - . •••••••et,--..-:•,-...
cif the larnediate recefiring water may be Canaan— ed. Thie iney'alfect fu- :":"".•
tore water quality based effluent limrtafions for additional dischargers ' .
within this portion of the watershed. - - • ' - • -
2. NPDES No. NCI:050342. VVinst 'Forsyth County lltlity Com-
mission, P.O. Box 2511, Wfnston-Safen1C 27102 has applied for re-
newal of its NPDES permit for a fealty located at Muddy Creek WWTP.
off Cooper Fload,"sathwest of Winston-Salem, Forsyth County. The fa -
dirty is permitted to discharge up to 21.0 MGD af treated domestic and
industrial wastewater from two outfalls into Yadkin River (001) end Mud-
dy CreelC(002), CLassWS-IV streams in the Yadldn-Pee Dee Rive, Basin.
The Yadkin River has a 7010 flow of 554 efts and Muddy Creek has a
7010 tow of 55 ds. CE30 D5, ammonia and dissohed oxygen are water
quality limited. For sane parameters, the available load capactly of the
immediate receiving water wil be consumed. This may affea future wa-
ter quality based effluent limitations for additkind dischargers yithin this
portion of the watershed_ - i•••••,*:: -
3. NPDES Pemffl NC0084212. Davie -County (728 Sparks Road, Mock-
sville, NC 27028) has applied for renewal of the NPDES permit for the
Sparks Road Water Treatment Plant, located at 728 Sparks Road north-
east of Famfington In Davie County. The facility discharges filter back-
wash from One outfail into the Yadkin River, a C Law WS-IV stream in the
Yadkin -Pee Dee River Basin. Turbidity is water quality ranted. This may
affect future water quaffly based effluent limitations for additional cis -
chargers within this portion af the watershed.
4. NPDES No. N03036011..The City of Winston-Salem:P.O. Box2511.
Winston-Salem, NC 27102, has applied for renewal af its NPDES permit
for a facility located at the Robert Neilson Water Treatment Plant, Frye •
Bridge Road, Winston-Salem, Forsyth County. The facility discharges
treated filter backwash from one outfall into an unnamed tributary to
Muddy Creek. a Class C Steen' in the Yadkin -Pee Dee River Basin. No
parameters are water quaity ranted, but this discharge may affect future
-. •
•
et
•

NORTH CAROLINA
FORSYTH COUNTY.
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said County and State, duly
commissioned, qualified, and authorized by law to administer oaths, personally
appeared D.H. Stanfield, who being duly sworn, deposes and says: that he is
Controller of Piedmont Publishing Company, Inc., engaged in the publishing of
a newspaper known as Winston-Salem Journal, published, issued and entered as
second class mail in the City of Winston-Salem, in said county and State: that he
is authorized to make this affidavit and sworn statement: that the notice or other
legal advertisement, a true copy of which is attached hereto, was published in
Winston-Salem Journal on the following dates.
April 7,1999
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 newspaper meeting all the requirements and qualifications of Section 1-597 of
the General Statues of North Carolina and was a qualified newspaper within the
meaning of Section 1-597 of the general statues of North Carolina.
This 9 day of April 1999
(signatur of pe making affidavit)
Sworn to and sub ribed before me, this 9 day of April 1999
1
My Commission expires: September 28, 2000
OFFICIAL SEAL
Notary Public, North Carolina
COUNTY OF FORYTH
KlMALEY�OH�VS�UU
• My Commission Expires .22
Notary Public
•
• .7.8 9.
aaE ! *1 :C6-
P.::T . .11e.,3 • Br;..`
:i$!:} _•
+v yam"•
a

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
MEMORANDUM
APR 2 6 i999
W i n s:`0 r.; 9 e f,,
Regional Office
April 19,1999
To: Hornlean Chen
Division of Environmental Health
From: Kim Murphy
Subject: Review of DRAFT PERMIT
Muddy Creek WWTP
Davie County
NC0050342
DEHNR
-P
7/“,)-( /-&d
---LAg42
Please indicate below your agency's position or viewpoint on the DRAFT permit
return this form by 5/24/99. If you have any questions on the draft permit, please contact
Mark McIntire at 919/733-5083 ext. 553.
and
RESPONSE:
This agency has reviewed the draft permit and determined that the proposed
discharge will not be sufficiently close to any existing or know proposed
public water supply intake so as to create an adverse effect on water quality.
We concur with the issuance of this permit provided the facility is operated
and maintained properly, the stated effluent limits are met prior to discharge,
and the discharge does not contravene the designated water quality standards.
Concurs with issuance of the above permit, provided the following conditions
are met:
Opposes the issuance of the above permit, based on reasons stated below, or
attached:
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

CITY OF WISTON-SALE'I
PUBLIC WORKS DEPARTMENT
P.O. BOX 2511 • WINSTON-SALEM, NORTH CAROLINA 27102-2511
May 19, 1999
Mr. Mark McIntire
Division of Water Quality
Department of Environment and
Natural Resources
P.O. Box 29535
Raleigh, North Carolina 27626-0535
RE: Comments on Draft NPDES Permit
Muddy Creek WWTP (NC0050342)
City of Winston-Salem; Forsyth County
Dear Mr. McIntire:
p`Y 2 ; 1999
�s1ER QUTu
DF.HR- „�cr.tAUlf,.
P41tg aU11,.
We have completed our review of the draft permit for the Muddy Creek Wastewater Treatment
Plant and would like for DWQ to consider the following concerns prior to issuing the final permit:
"* The effluent limitations page for the 002 discharge stipulates that the plant must meet an
average daily residual chlorine limit of 28 ppb. DWQ removed this limitation from the
plant's existing permit as part of an agreement to settle an adjudication initiated by
Winston-Salem following the issuance of the plant's current permit.
The 002 discharge is used only when the plant's effluent flow rate exceeds the carrying
capacity of the 001 outfall. When this occurs, a portion of the treated discharge overflows
into a channel leading to Muddy Creek. This discharge occurs approximately five times
per year during heavy rainfall events and each discharge lasts about four hours.
In that a typical 002 discharge lasts for only a short while during flood events, Winston-
Salem does not feel that it is appropriate for DWQ to impose a residual chlorine limit. We
feel that the dilution factor resulting from the discharge into a flooded stream is adequate to
insure that the chlorine residual does not violate the water quality standard for chlorine.
We ask that the final permit require that we monitor for residual chlorine and that DWQ
remove the proposed limit.
* Special Condition A(3). entitled Chronic Toxicity Permit Limit (Quarterly)-21 MGDdoes
not clearly stipulate what constitutes a violation of the permit limit. The existing
language could be interpreted to mean that a single test failure constitutes non-compliance.

Mr. Mark McIntyre
May 19, 1999
Page 2
Winston-Salem requests that the language in our existing permit defining compliance be
incorporated into the new permit. This language stipulates that."The effluent discharge shall
at no time exhibit 48 hour acute toxicity as lethality in an effluent concentration of 5.5% nor
measure a quarterly arithmetic average chronic effect value less than this same concentration
of waste".
Please note that the draft permit for the Elledge Plant should include BOD limits reflecting the
plant's existing average daily effluent dissolved oxygen limit of 6.5 mg/1.
Please call me at 336-765-0130 if you have any questions regarding this matter.
Sincerely:
tth
Stanley B. Webb
Wastewater Operations Superintendent
PC: David Saunders; Utility Plants Engineer
Ref:1051999b

R.
MEMORANDUM
TO:
Dave Goodrich
Division of Water Quality
THROUGH: Matt Matthews 1`1'M"
FROM:
SUBJECT:
May 14, 1999
Kristie Robeson 1�1�
Draft Permit Corrections
Winston -Salem -Muddy Creek WWTP
NPDES Permit No. NC0050342
Forsyth County
Winston -Salem -Archie Elledge WWTP
NPDES Permit No. NC0037834
Forsyth County
Our office has received the draft permits for these subject facilities. The Special
Condition pages for these drafts contain incorrect language for Phase II chronic toxicity
testing. The paragraph which states, "If the test procedure performed as the first test of
any single quarter measures 48 hour acute toxicity or a chronic value less than that
specified above, then multiple concentration testing shall be performed, at a minimum, in
each of the two following months", was omitted in these drafts. Please find attached, a
copy of the correct chronic toxicity language to be used in these permits.
We appreciate your assistance to undertake the necessary steps to correct the
existing draft permits and incorporate the recommendation cited above. Please feel free
to contact me at 2136 if you have any questions.

CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit 48 hour acute toxicity as lethality in an effluent concentration
of % nor measure a quarterly arithmetic average chronic value less than this same percentage of waste.
The chronic value 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 presence of 48 hour acute toxicity will be determined using
Fisher's Exact Test at 48 hours from test initiation. 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 -November 1993) or subsequent versions.
The permit holder shall perform at a minimum, quarterly monitoring using these procedures to establish
compliance with the permit condition. The tests will be performed during the months of
. 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 measures 48 hour acute toxicity or a
chronic value less than that specified above, then multiple concentration testing shall be performed, at a
minimum, in each of the two following months.
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 THP3B
for the Chronic Value and TGA3B for the 48 hour Acute Toxicity measure (Pass/Fail). Additionally, DWQ
Form AT-3 (original) 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 all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the
waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Environmental Sciences Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly
test requirement will revert to the schedule specified above.
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.
QPIIL Version 9/96

\Ns\\\.s,
\
DENR/DWQ r''11���' - 8 ���
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0050342 V:,, i
RECEIV
N.C. Dept. of Pi-H
Applicant/Facility Name:
Applicant Address:
Facility Address:
Permitted Flow
Type of Waste:
Facility/Permit Status:
County:
Receiving Stream:
Stream Classification:
303(d) Listed?:
Subbasin:
Drainage Area (mi2):
Summer 7Q10 (cfs)
Winter 7Q10 (cis):
Facility Information
City of Winston-Salem — Muddy Creek WWTP
P.O. Box 2511, Winston-Salem, NC 27102
Off of Cooper Road. Winston-Salem, NC
21.0 b1GD
26% industrial
74% domestic
Renewal w/o expansion
Forsyth
Miscellaneous
Yadkin River - 001
Muddy Creek - 002
WS-1V
NO
03-07-04
Average Flow (cis):
IWC (%) @ 21.0 MGD:
Primary SIC Code:
Treatment Plant Class:
1967
554
854
1849
5.5%
4952
IV
Regional Office:
USGS Topo Quad:
Permit Writer:
Date:
Winston-Salem
D17NE
Mark Mclntire
February 4, '99
SUMMARY
This facility is a major municipal treatment plant operating in Forsyth County. Over the years it has
undergone numerous expansions. The facility is currently permitted to discharge 15.0 MGD and
21.0 MGD upon completion of construction. An Authorization to Construct (ATC) was issued on
May 31, 1996 for the expansion to 21.0 MGD. An engineer's certification for the
chlorination/dechlorination facilities was received on December 3, 1998. Stanley Webb with the
City's Public Works Department indicated that all construction associated with the expansion to 21.0
MGD will be completed sometime in March. He confirmed in a telephone conversation on February
5, 1999 that it would not be necessary to include effluent limitations pages for flows less than 21.0
MGD.
The facility operates two outfalls. The primary outfall is labeled 001. The second outfall, 002, is
essentially an overflow outfall for 001. This outfall is used when discharge to the Yadkin River
through 001 is not possible. Discharge through 002 occurs perhaps once a year for approximately 2
hours.
Upon permit renewal in 1994, the City filed a Petition for Contested Case Hearing with the Office of
Administrative Hearings. The issues related to the petition were resolved in a mediated settlement
conference held on March 10. 1995. The primary issue was with respect to cyanide. Specifically, a
cyanide limit was installed in the originally issued permit. As a result of the settlement, a one-year
cyanide study was completed. As a result of that study, cyanide monitoring was subsequently
3
WS — Muddy Creek Fact She J E DATE -2-
NPDES Renewal
Page 1

dropped. Also. the settlement indicated that the TRC limit would be considered a daily average
instead of a daily maximum. This agreement has been maintained in the draft permit.
No reasonable potential analysis is necessary for this renewal as lead has not been detected and there
is no adopted state standard for zinc. No other toxicant monitoring is required outside of the
facility's LTMP administered by its pretreatment program.
LTMP REVIEW
The facility's LTMP data is being reported on its DMRs. This data was reviewed during the
compliance review.
PROPOSED CHANGES:
• Monitoring Frequencies: In accordance with the Division's current strategy for permitting
facilities discharging in the Yadkin -Pee Dee River Basin, the monitoring frequency for total
phosphorus and total nitrogen has been changed from monthly to weekly.
• Effluent Pages: All effluent limitations pages for flows less than 21.0 MGD have been
eliminated as all necessary construction for the expansion will be completed sometime in March.
• Instream Monitoring: Due to Winston Salem's participation in the Yadkin -Pee Dee River Basin
Association (the Association), instream monitoring requirements have been provisionally waived
and stated as such on the effluent limitations page.
• Lead Monitoring: Lead monitoring will be removed from the permit as it was never detected
during 1998.
• Sample Type: With the permit renewal application. the permittee requested that the sample
type for all parameters monitored at outfall 002 be changed from composite to grab. The
reason being that discharge occurs extremely seldom and when it occurs, it lasts for a few hours
at the most. The short duration of discharge makes composite sampling impossible as it is
defined in the permit. Additionally. there have been times when discharge did not last long
enough to provide enough sample for analytical testing. As such. all sample types have been
changed from composite to grab.
TOXICITY TESTING:
Type of Toxicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
This facility has passed
Chronic Phase II
001: Chronic ChV @ 5.5%
002: None
001: Chronic ChV @ 5.5%
002: None
January, April, July, and October
all toxicity tests during the previous four years.
COMPLIANCE SUMMARY:
This facility has had no compliance problems in at the least the last two years.
WS — Muddy Creek Fact Sheet
NPDES Renewal
Page 2

INSTREAM MONITORING:
Instream monitoring is currently required for CBOD, ammonia, DO. fecal coliform. temperature,
conductivity and lead (lead will be removed from this renewal). All instream monitoring requirements
have been provisionally waived due to the facility's participation in the Association.
PROPOSED SCHEDULE FOR
Draft Permit to Public Notice:
Deadline for Public Comment:
Permit Scheduled to Issue:
PERMIT ISSUANCE:
April 7, 1999
May 7, 1999
May 25, 1999
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit. please contact
Mark McIntire at [phone] ext. 553.
NPDES UNIT COMMENT:
NAME: DATE:r ?` �' (74-77,
REGIONAL OFFICE COMMENT:
, \%1
NAME:
EPA COMMENT:
.ZDATE:
WS — Muddy Creek Fact Sheet
NPDES Renewal
Page 5

Permit No. NC0050342
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,
City of Winston-Salem
is hereby authorized to discharge wastewater from a facility located at
Muddy Creek Wastewater Treatment Plant
Off Cooper Road
Winston-Salem
Forsyth County
to receiving waters designated as the Yadkin River (outfall 001) and Muddy Creek (outfall 002) in
the Yadkin -Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on June 30, 2004.
Signed this day
.61
A. Preston Howard, Jr.. P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

A. PRESTON HOWARD,
JR., P.E.
DIRECTOR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
February 11, 1998
Mr. Stanley B. Webb
Wastewater Operations Superintendent
City of Winston-Salem
P.O. Box 2511
Winston-Salem, NC 27102
Subject: Archie Elledge WWTP (NC0037834)
Muddy Creek WWTP (NC0050342)
Permit Information Request
City of Winston-Salem/Forsyth Co.
Dear Mr. Webb:
In response to your letter dated December 10, 1997 pleas' note the following information
about the Division's Yadkin River Basinwide Management Plan, as well as speculative limits for
the Archie Elledge WWTP coupled with a reduced effluent dissolved oxygen (DO) limit:
• During the next five year permitting cycle for the Yadkin River Basin the Division does not
anticipate any permit limit changes for either the Archie Elledge (30 MGD) or Muddy Creek
(21 MGD) WWTPs at current permitted flow. However, the City should expect stricter limits
for oxygen consuming wastes in the Archie Elledge NPDES permit if this facility plans any
expansion of its wasteflow above its current 30 MGD limit, or if water quality standards in
Salem or Muddy Creeks are not being met. Currently, the instream standard for DO is being
protected, however the Division is concerned about the relatively low DO concentrations (mid
5 to 6 mg/L range) which were reported during a low stream flow period in 1995. During this
period the Elledge WWTP was treating to well below its BODS limit, which suggests that the
assimilative capacity of Muddy and Salem Creeks may be over allocated.
Additional field data may need to be collected before an assessment could be made regarding
speculative permit limits for the Muddy Creek WWTP in association with an expanded
wasteflow from this facility. Additional information concerning oxygen consuming wastes
and related management strategies for Salem and Muddy Creeks can be found on pages 6-14
and 6-15 of the ensed DRAFT Yadkin Basinwide Management Plan.
As you may already be aware, the Division is investigating the possibility of designating all or
a portion of the High Rock Lake watershed as Nutrient Sensitive Waters (NSW). Both of the
City's major WWTPs would likely be affected by a reclassification to NSW of the respective
receiving streams. Again, during the next 5 years no changes to NPDES permits are
expected. However, the Division does recommend that major dischargers in the High Rock
Lake watershed, which includes the City of Winston-Salem, act to improve phosphorous
removal. Additional information on this topic can be found beginning on page 6-9 of the draft
management plan.
• In your letter you requested speculative limits for BODS and ammonia coupled with a
reduced DO effluent concentration. With a DO limit of 6.0 mg/L and 5.5 mg/L the following
limits would apply for oxygen consuming wastes at the Elledge WWTP:
P.O. BOX 29535, RALEIGH, NORTH CAROLINA 27626-0535
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10q POST -CONSUMER PAPER

Archie Eliedge WWTP
Summer Winter
Wasteflow (MGD) 30 30
BOD5 (mg/L) 16.0 30.0
NH3-N (mg/L) 1.2 4.0
DO (mg/L) 6.0 6.0
Summer Winter
Wasteflow (MGD) 30 30
BOD5 (mg/L) 12.0 24.0
NH3-N (mg/L) 1.2 4.0
DO (mg/L) 5.5 5.5
A complete review of other permit limits including toxicants/metals will be conducted after receipt of a permit
application or modification.
If you have any questions please contact Andy McDaniel, 919-733-5083 ext 513.
Sincerely, /
(.---'
David Goodrich
NPDES Unit Supervisor
Cc: Mike Mickey (Winston-Salem Regional Office)
Permits and Engineering Unit
Modeling/TMDL Unit
Attachment: Draft Yadkin Basinwide Management Plan

CITY OF \VJNSTON-SALEM
PUBLIC WORKS DEPARTMENT
P.O. BOX 2511, WINSTON-SALEM, NORTH CAROLINA 27102
December 10, 1997
Mr. David Goodrich
North Carolina Department of Environment,
Health and Natural Resources
Division of Water Quality
P.O. Box 29535
512 North Salisbury Street
Raleigh, North Carolina 27626-0535
Dear Mr. Goodrich:
WORIMI;11
DEC 1 7 1997
POINT SOURCE BRANCH
Subject: Request for Probable NPDES Limits
Archie Elledge WWTP (NC0037834)
Muddy Creek WWTP (NC0050342)
City of Winston-Salem/Forsyth County
The NPDES Permits for Winston-Salem's two wastewater treatment plants will expire on July 31,
1998. We are currently preparing the applications to renew these permits.
To assist us in planning, we would appreciate your office providing us some idea of the limits
which DWQ may implement in these permits as a result of the Yadkin River Basin Study. An
upgrade is currently underway at our Muddy Creek Plant and we are planning to make some
modifications to the secondary system at the Elledge Plant. If further work is needed at these
facilities to accommodate more stringent permit limits we need to know this as soon as possible.
Winston-Salem would also like to know what effect a reduction in the effluent Dissolved Oxygen
limit from 6.5mg/1 to 6.0 and 5.5 mg/1 will have on the BOD and Ammonia limits at our Archie
Elledge WWTP (NC0037834).
This information should be sent to my attention at the City of Winston-Salem; 4561 Cooper
Road, Winston-Salem, North Carolina 27127. If you have questions regarding this request please
call me at 910-784-4700. If you need to call me after December 15 please note that our area code
is changing from 910 to 336.
Thank you for your assistance in this matter and best wishes for the upcoming holidays.

• .
Mr. David Goodrich
December 10, 1997
page 2
Sincerely;
6(.}2-W
Stanley B. Webb
Wastewater Operations Superintendent
PC: David Saunders; Utility Plants Engineer
Mike Mickey; DEHNR Regional Office
Ref:let1210.97a

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Stanley B. Webb
City of Winston-Salem
P. O. Box 2511
Winston-Salem, NC 27102
Dear Permittee:
NC DENR
September 21, 1998
Subject: Modification of NPDES Permit No. NC0050342
Muddy Creek WWTP
.. Forsyth County
The Division is beginning the second five-year cycle of river basin planning and permit renewals. An
examination of the basin planning schedule has revealed that the timing of permit renewals does not
allow an evenly distributed workload as first envisioned. This results in problems with the efficiency
and effectiveness of the NPDES program. In an effort improve customer service, and after thorough
review of the water quality issues in your area, the Division is changing the permit renewal schedule for
all NPDES permits in your sub -basin.
This permit modification changes the expiration date of the subject permit to June 30, 1999. Please
find enclosed the revised permit cover page. Insert the new cover page into your permit and discard the
old page. All other terms and conditions contained in the original permit remain unchanged and in full
effect. This permit modification is issued pursuant to the requirements of North Carolina General
Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U. S.
Environmental Protection Agency.
If you have already submitted a permit renewal application for the subject facility, the Division will
retain the application until your permit is due for renewal. No additional forms or fees will be required.
If any parts, measurement frequencies or sampling requirements contained in this permit modification
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 a written petition conforming to
Chapter 150B of the North Carolina General Statutes, 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.
If you have questions about this modification, please contact Charles Weaver of my staff at the
telephone number or address listed below.
Sincerely,
Preston Howard, C/Jr., P.E.
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
Roosevelt Childress, EPA
NPDES Unit Files
Point Source Compliance Enforcement Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 919 733-5083, extension 511 (fax) 919 733-0719
An Equal Opportunity Affirmative Action Employer [e-mail]

Permit No. NC0050342
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,
City of Winston-Salem
is hereby authorized to discharge treated wastewater from a facility located at
Muddy Creek WWTP
Winston-Salem
Forsyth County
to receiving waters designated as subbasin 30704 in the Yadkin -Pee Dee River basin.
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III and IV hereof.
This permit shall become effective September 21, 1998.
The permit and authorization to discharge shall expire on June 30, 1999.
Signed this day September 21, 1998.
v
. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

A"lr
NORTH CAROLINA
DAVIDSON COUNTY
Notice of Intent
'o Extend The Duration of NPDES Discharge Permits in the Yadkin River basin
:UBJECT: The Division or Water Quality plans to extend the duration of existing
4PDES Permits for the following facilities:
'emit Facility
4C0070637 Piedmont Convening. Inc.
4C0083941 Heater Utilities -Twin Creeks
4C0070033 Quail Run Mobile Home Park
4C0040045 Bills Truck Stop, Inc.
4C0004626 PPG Industries - Lexington
40;059218 Captain Steven's Seafood Restaurant
4C0084425 Davidson Water, Inc. - WTP
4C0023604 Thomasville Fumiturc - SFD Plant
4C005936 Hilltop Living Center
4C0041599 Davidson Co. Schools -Central Middle/Senior High
4C0029947 Davidson Co, Schools-Churchland Elementary
4C0042072 Davidson Co. Schools -Northwest Elementary
400042072 Davidson Co. Schools -Silver Valley Elementary
4C0044249 Davidson Co. Schools -Southwood Elementary
4C0042056 Davidson Co. Schools -'Tyro Jr. High
4C0031950 Davidson Co. Schools -West Davidson H.S.
4C0061204 Scarlett Acres Mobile Home Division
4C0046931 Norfolk Southern Railway Company
4C0057223 Head Mobile Home Park
4C0051489 Three R's Mobile Home Park
4C0057509 Carolina Water Service -Sequoia
400065587 Mid -South Water Systems/Frye Bridge
4C0085871 ABB Flakt.Ine./Flakt Products
4C0080853 Lucent Technologies. Inc./Salem Business Park
4C0004707 RI Reynolds - Downtown
4C0055093 RJ Reynolds - Tobaccoville
4C0086011 City of Winston-Salem / Neilson WTP
400079821 City of Winston-Salem /Thomas WTP
4C0037834 City of Winston-Salem / Elledge WTP
4C0050342 City of Winston-Salem / Muddy Creek WTP
:C0083739 Crown Central Petroleum Corporation
4C0067385 BP Service Station - Site ff24•••
4C0084 115 Wachovia Southern Oil Co.
4C0084760 Usair Smith -Reynolds Maintenan
4C& 085138 Lowes Foods-S. Main St; M826
4C0037184 Oak Haven Mobile Home Park
4C0061034 Rowan Associates & Mercantile Center
4C0042439 Westside Swim & Racquet Club
4C0045675 Majestic Properties - Rowan Site
4C0025593 Town of Spencer - W WTP
IC0027502 Town of Landis - WTP
4C0035921 Rowan -Salisbury Schools/Faith Elementary
400034703 Rowan -Salisbury Schools/ Knollwood Elementary
4C0049905 Inman Asphalt, Inc. - Salisbury
40005487 Color -Tex Finishing Corporation
4C0004774 Duke Power - Buck Steam Station
4C0023S84 City of Salisbury - Grant Creek WWTP
4C0023892 City of Salisbury - Town Creek WWTP
County
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON.
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
DAVIDSON
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
FORSYTH
ROWAN
ROWAN
ROWAN
ROWAN
ROWAN
ROWAN
ROWAN
ROWAN
ROWAN
ROWAN
. ROWAN
ROWAN
ROWAN
'urpose: The facilities listed above all discharge into the Yadkin River basin. Other
ermils in the Yadkin River basin have expiration dates in calendar year 1999. The
OCiilliCS listed above have permit expiration dates in 1998. In order for the Division to
.valuate all permit renewal requests in the Yadkin River basin during the same calendar
Tar, the Division plans to extend the expiration dates of the permits for the facilities
isted above. No conditions in the existing permits will be changed or modified. This is
at administrative change to better align permitting and Basinwide Planning operations
vithin the Division of Water Quality. On the basis of preliminary staff review of Article
!I Chapter 143, General Statutes of North Carolina (and other lawful standards and
egulations), the North Carolina Environmental Management Commission proposes to
:stead the duration of the NPDES permits listed above. subject to specific pollutant
imitations and special conditions.
NFORMATION: A copy of the existing NPDES permits and a sketch showing the
ocation of each discharge is available by writing or calling:
Mr. Charles Weaver
NC DENE - DWQ - NPDES Unit
P.O. Box 29535
Raleigh, North Carolina 27626-0535
Telephone Number. [phone], ext. 511
The existing permits are on file at the Division of Water Quality, Archdale Building, 512
North Salisbury Street (Room 925), Raleigh, North Carolina. They may be inspected
luring normal office hours. Copies of the information on file are available upon request
and payment of the costs of reproduction.
-
Date: July 27, 1998 11 � — ill (—
For A. Preston Howard. Sr., P.E., Director
Division of Water Quality
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said
County and State, duly commissioned, qualified, and
authorized by t w to admiqister oaths, personally
appeared fa.Niv,,- , who
being first duly sworn deposggs and says: that he is
q. 4n.11,.1lI(4....r�t.L CAM.0 of The
Thomasville Timk Inc., engaged in the publication of
a newspaper known as The Thomasville Times,
published, issued, and entered as second class mail in
the City of Thomasville in said County and State; that
he (she) is authorized to make this affidavit and swom
statement; that the notice or other legal advertisement,
a true copy of which is attached hereto, was published
in. The Thomasville Times on the following dates:
; 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
newspaper meeting all the requirements and
qualifications of Section 1-597 of the General Statutes
of North Carolina and was a qualified newspaper
within the meaning of Section 1-597 of the General
Statutes of North Carolina.
r r
This .day of , 19. 9.2..
��rrf
Swom to and subscribed beffR�r me, this ....:i ..
day of ....
%.,....19..Y /
My Commission Expires
Nofary Public
IcY uoo

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
.Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
July 27, 1998
Stanley B. Webb
City of Winston-Salem
P. O. Box 2511
Winston-Salem, NC 27102
NC DENR
Subject: Status of NPDES Permit NC0050342
Forsyth County
Dear Permittee:
After a thorough review of the Yadkin -Pee Dee River basin management plan and water quality issues relevant to
the subject facility, the Division of Water Quality has decided to extend the duration of the subject permit. The
expiration date of your permit will be changed in order to allow the Division to review all NPDES discharge
permits in the Yadkin River Basin during calendar year 1999.
All terms and conditions in the existing permit will apply until a new expiration date is assigned by the Division.
Extension of existing Effluent Limitations and Monitoring Requirements does not exempt the subject facility from
the new Enforcement Policy recently enacted by the Division.
Attached to this letter is a copy of the Public Notice that is being published to announce the planned extension of
your permit. After Public Notice has been made by the Division, the expiration date of your permit will be
changed via a permit modification. No draft permit will be sent out with the Public Notice, as none of the
conditions in the existing permit will be modified.
The Division appreciates your patience and understanding to date regarding the rescheduling of the subject
permit. If you have already submitted your renewal application package, no additional fees or documentation will
be required as a result of this change to your permit's expiration date.
If you have questions about this proposed modification or about the permit renewal process, contact Charles
Weaver of my staff at the telephone number or address listed below.
A. Preston Howard, Jr., P.E.
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
NPDES File
P.O. Box 29535, Raleigh, North Carolina 27626-0535 919 733-5083, extension 511 (fax) 919 733-0719
An Equal Opportunity Affirmative Action Employer [e-mail]

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Barry Shearin
City of Winston-Salem / Muddy Creek WWTP
P.O. Box 2511
Winston-Salem, NC 27102
June 1, 1998
A717•A
Ar...gaimzujiT
NC DENR
Subject: Implementation of Yadkin Pee -Dee River Basin Association
NPDES Permit Modification for Instream Sampling
NPDES Permit NC0050342
Forsyth County
Dear Permittee:
As a participant in the coordinated instream monitoring efforts within the Yadkin -Pee Dee River basin,
your facility and the North Carolina Department of Environment and Natural Resources (DTNR) have
entered into an agreement that provides both parties with an effective environmental monitoring tool. By
this letter, the DENR is waiving the instream monitoring requirements as specified within your individual
NPDES permit beginning June 1, 1998. As specified in the Memorandum of Agreement (MOA) signed by
this agency and you (or your representative), the agreement identifies the stations, parametric coverage
and frequency of analysis required in order that the instream monitoring requirements be waived for your
facility.
All other terms and conditions in the original permit remain unchanged and in full effect. These
modifications are 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 December 6, 1983. Should your membership in the agreement be terminated, the instream
monitoring requirements specified in your permit will be reinstated. You shall notify the Division
immediately upon termination of membership.
I would like to express my appreciation for the cooperation and participation of all participants in this
innovative approach to environmental monitoring. It is expected that the results of the agreement will
effectively contribute to our understanding of the Yadkin -Pee Dee River basin environment. We have
designated Cathy Tyndall as our primary contact for issues related to the MOA. She can be reached at
[phone].
We also look forward to the advances that this cooperative agreement will provide in our management of
the Yadkin -Pee Dee River basin and ask that you feel free to contact us should any questions arise
regarding the monitoring efforts or interpretations of the information collected. We will be maintaining
our own series of monitoring stations in the basin which, when added to the information collected by this
agreement, will greatly expand our knowledge of this environmental system. We thank you again for your
participation and look forward to a successful monitoring effort.
Sincerely,
Preston Howard, Jr., P.
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
Susan Wilson, Point Source Compliance Enforcement Unit
Cathy Tyndall, Environmental Sciences Branch
NPDES Unit Files
P.O. Box 29535, Raleigh, North Carolina 27626-0535 919 733-5083, extension 511 (fax) 919 733-0719
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

GITY or WJNSTON-SALEM
PUBLIC WORKS DEPARTMENT
P.O. BOX 2511, WINSTON-SALE\1. NORTH CAROLINA 27102
January 20, 1998
Mr. Don Safrit
North Carolina Department of Environment,
Health and Natural Resources
Division of Water Quality
P.O. Box 29535
512 North Salisbury Street
Raleigh, North Carolina 27626-0535
Re: NPDES Permit Renewal Application
Muddy Creek WWTP (NC0050342)
Winston-Salem; Forsyth County
Dear Mr. Safrit:
©202
JAN 3 0 1998
POINT SOURCE BRANCH
Three sets of the documents necessary to renew the NPDES permit for Winston-Salem's Muddy
Creek WWTP are attached. A check in the amount of $800 is also attached to cover the permit
renewal fees for both the Muddy Creek and Archie Elledge WWTPs. The discharge permits for
both of these facilities expire on July 31, 1998.
Please note that Winston-Salem is also submitting an application to renew the federal sludge
disposal permits for these facilities to EPA. Although Region IV of EPA has never issued
Winston-Salem a sludge disposal permit, we are required to reapply for a 503 permit at the same
time we apply to renew our NPDES permit.
Winston-Salem has several concerns regarding the existing permit monitoring requirements. We
would appreciate DWQ considering these concerns while preparing the draft permit.
Monitoring Requirements for 002 Discharges:
The Muddy Creek Plant's 002 discharge outfall is essentially an overflow point on the 001 outfall
which allows the flow that cannot be discharged to the Yadkin River via the 001 outfall to flow
into Muddy Creek. An 002 discharge occurs about once a year and lasts — two hours. It occurs
during flood events when the plant's discharge flow rate exceeds the hydraulic capacity of the 001
outfall.
The Muddy Creek Plant's existing permit requires that a 24 hour composite sample be used to

Mr. Don Safrit
January 20, 1998
Page 2
monitor for CBOD-5, TSS, Ammonia, Total Nitrogen, Total Phosphorus, Lead and Zinc. An
002 discharge, however, typically lasts for only a couple of hours and this makes it impossible for
us to perform monitoring on a daily composite as required by the permit.
There have also been occasions when an 002 discharge did not last long enough for a composite
sample to contain sufficient volume to provide analytical aliquots for all the analyses that were
required on the sample.
Winston-Salem feels that the duration and low flow associated with an 002 discharge, especially
since it occurs during times when the stream is flooded, is such that all the monitoring
requirements should be based on a grab sample. This provision will allow us to ensure that we
will always have an adequate volume of sample to perform the necessary monitoring regardless of
how brief the discharge was.
Residual Chlorine Limit
The Muddy Creek Plant's existing permit requires the plant to meet an average daily residual
chlorine limit of 28 ppb upon expansion above a permitted flow of 15 MGD. The facilities
necessary to allow the plant to meet this limit must be constructed in Davidson County. Davidson
County has refused to grant us the special use zoning permit we need to begin work and we have
filed a suit against them. The court recently ruled in Winston-Salem's favor and we are now
waiting for Davidson County to either grant us a special use permit or appeal to a higher court.
Since Winston-Salem is unable to meet this limit until the dechlorination facilities are constructed,
we ask that the renewal permit include language delaying the implementation of this limit until
DWQ receives the Engineer's Certificate of Completion. ' ""i ` �d
�s Pb.,.c
Thank you for your consideration in this matter and please call me at 336-784-4700 if you have
any questions or need additional information.
Stanley B. Webb
Wastewater Operations Manager
PC: David Saunders; Utility Plants Engineer
Mike Mickey; DEHNR Regional Office
Ref let0112.98a

Influent
15.2
M.G.D.
Screening
And Grit Removal
Digested
Sludge
•
Gravity thickener Supernatant 4
119 T.G.D.
44.2
T.C.D.
74.9
Prima
Anaerobic
Digesters
Primary
Clarifier
\\Z
Sfirigp 72 T_C'•-I?.
Mechanical
newaturing
Sludge Storage
Lagoons
Thickened W.A.S.
4
Activated Sludge
Basins
Return Sludge
W.A.S.
4-7
Secondary
Clarifier
Chlorination
Plant Effluent
To Yadkin
River
•
42 T.G.D. 1 15.1 M.G.D.
C:\OFFICE\WPWIN\WPDOCS\FLOWCHAR. WPD
Sludge
Blending
Facility
To Land
Application
•
Dechlorination
Schematic of Process Flow
Muddy Creek W.W.T.P.
NPDES NO. NC0050342
Winston Salem
North Carolina
December 15, 1997

BIOSOLIDS DISPOSAL STRATEGY
CITY OF WINSTON-SALEM
ARCHIE ELLEDGE WWTP
MUDDY CREEK WWTP
Residual biosolids from both of Winston-Salem's two wastewater treatment plants are treated to
meet the Class B criteria established by the EPA's 503 Sludge Disposal Regulations. This level of
treatment is achieved by subjecting the biosolids to anaerobic digestion at 94 degrees Fahrenheit
for at least 45 days. The average digestion time at the Elledge Plant is -48 days and the Muddy
Creek Plant's digestion time is -67 days. Both facilities meet or exceed the volatile solids
reduction criteria established by USEPA for vector control.
Winston-Salem's primary sludge disposal strategy is to land apply its digested biosolids to farm
land at an agronomic rate. Winston-Salem currently has 8,622.08 acres of agricultural land
permitted to receive biosolids. These lands lie in Davie and Yadkin counties and solids are
applied to these sites in accordance with the requirements of DWQ non discharge permit
WQ0000094.
Winston-Salem has also applied to Region IV of EPA for a federal sludge disposal permit. We
submitted this application to EPA in February of 1994 but the permit has not yet been issued.
Archie Elledge WWTP
The Archie Elledge WWTP currently produces —24 dry tons of digested biosolids daily. Under
normal conditions, these solids are stored in one of three sludge holding lagoons until they are
land applied. These three lagoons have a combined storage capacity of 32.4 million gallons.
While in the lagoons free water forms as the solids settle to the bottom. This free water is
removed and this process serves to thicken the solids content of the biosolids from —2% to —5%.
The solids concentration in the biosolids actually land applied varies according to the crop being
grown, but on average this value is 5.47%.
Adverse weather and cropping patterns prevent our being able to land apply biosolids on a
continual basis. During these times, solids are stored in the holding lagoons until we are able to
resume land application.
If conditions are such that we anticipate exhausting all our storage space before we can resume
application operations, we utilize contract dewatering firms to dewater the plant's daily sludge
production. The plant may also utilize its sixteen acres of sand drying beds in conjunction with
mobile dewatering equipment to dewater its sludge production. All biosolids dewatered under
these conditions are disposed of in a lined solid waste landfill.

Biosolids Disposal Strategy
Winston-Salem, N.C.
Page 2
Muddy Creek WWTP
The Muddy Creek WWTP produces —8 dry tons of biosolids daily. The plant has mechanical
dewatering facilities which dewater —37% of the daily biosolids production. The remaining solids
are stored the plant's 12.8 million gallon lagoon storage system until they are land applied. The
plant's lagoons are not large enough to contain the daily sludge production during periods when
land application is not possible, so belt filter presses are operated continually to supplement the
lagoon's storage capacity.
The Muddy Creek Plant is equipped with a sludge blending facility which is designed to mix
dewatered cake with the thinner biosolids removed from the holding lagoons. This operation
allows the plant to formulate a biosolids slurry with a nutrient content that is appropriate for the
crop being grown on the application site.
In the event the plant exhausts all its lagoon and cake storage capacity during periods when field
operations cannot be conducted, the plant's strategy is to dewater its entire daily solids
production and dispose of the resulting cake in a lined landfill.
Future Disposal Strategy
Winston-Salem has retained Black and Veatch Engineers to evaluate its residual management
program and recommend an appropriate long term strategy.
This evaluation concluded that Winston-Salem's total biosolids production will ultimately increase
from the current 32 dtpd to —52 dtpd. Given this, it is expected that the rate of development in
our service area may result in an inadequate supply of suitable farmland to support land
application as our sole disposal option.
Black and Veatch has recommended that Winston-Salem begin building permanent dewatering
facilities for the Elledge Plant as a first phase of a long term residuals management strategy.
These facilities are currently in design and we expect to begin construction in early summer of
1998. The engineer estimates that this equipment will be on line by the fall of 1999.
The second phase of the management strategy recommended by Black and Veatch will be to begin
piloting work to identify a Class A disposal option to augment our land application program. Our
long term strategy is to continue land applying all the residual biosolids that we can and utilize the
most cost effective Class A option to dispose of the excess.
We will continue disposing of sludge cake in a lined landfill until the facilities are on line to
implement a suitable Class A disposal option.

ALTERNATIVES TO DISCHARGE ANALYSIS
ARCHIE ELLEDGE WWTP
MUDDY CREEK WWTP
CITY OF WINSTON-SALEM, NORTH CAROLINA
Upon the completion of the upgrade currently in progress at Winston-Salem's Muddy Creek
WWTP, the combined permitted flow for these facilities will be 51 MGD. Winston-Salem is not
requesting an increase in permitted flow capacity for either of these plants at this time. Facilities
are either currently in place or under construction to adequately treat the permitted flow at each
of the plants.
The size and location of these plants are such that it is difficult to identify and implement
alternatives to continuing point source discharges to a receiving stream. Several alternatives to
surface water discharge were evaluated as part of this permit renewal application and the results
of these evaluations are itemized below.
Diverting Discharges to a Regional Treatment Facility:
This alternative is not a viable option because there are no other treatment facilities in the area
with the capacity to assimilate the flow and organic loading currently being treated by the Archie
Elledge and Muddy Creek WWTPs.
This option is also not considered a means by which a discharge of treated wastewater to a stream
is actually prevented since the wastewater treated by the "Regional Facility" would only be
discharged into a different stream.
Land Applying the Treated Wastewater to Agricultural Land:
This alternative would involve pumping the combined effluents from the two plant to a site where
treated wastewater would be applied at rates of -5 feet/acre/year to agricultural crops or a tree
farm. This alternative would involve the purchase of a large tract of land and the construction of
pumping and distribution facilities needed to get the plant's effluent to the application site and
apply it. The construction of a lagoon to provide - 20 days storage capacity during freezing
weather and precipitation events would also be constructed.
The criteria used to evaluate this alternative are as follows:
- Type of System
- Design Flow
- Avg. Annual Precipitation
- Soil Percolation Rate
- Design Hydraulic Loading Rate
- Estimated portion of Discharge
Site unavailable for use
Slow Rate Application
51 MGD
42.6 inches
0.6 to 2 inches per hour
5 feet/acre/vear (1.63 MG/acre/vear)
15%

Alternatives to Discharge Analysis
City of Winston-Salem, North Carolina
Page 2
-Total area Required Annually for --- 13,400 acres
- Inclement Weather Storage 20 days (1 billion gallons)
A "Slow Rate" System was chosen for this evaluation because this system is less likely to cause
nitrate contamination in the underlying ground water. A low rate of application will also reduce
the possibility of "run-off' from the site into adjacent lands or waterways. The operation of this
system would have to be conducted at low hydraulic loading rates due to the low percolation
rates of the clay loam soils prevalent in the upland regions of the piedmont area.
The estimated cost to purchase the land and construct the facilities that would be needed to
implement this alternative are shown below:
***Ladd Discharge Facility Cost Estimates***
* Effluent Pumping Station and Forced Main $7,100,000
* Cost of Land (Disposal Site and Storage Lagoon) $108,427,000
13,554 acres @ $8000
* Cost to Construct Storage Lagoon $99,030,000
4,951,475 yards @ $20
* Cost for Distribution System on Application Site $2,000,000
Subtotal $216,557,000
* Engineering and Contingency at 20% $43,311,000
Grand Total: $259,868,400
This option is to expensive to be a practical alternative to a surface water discharge.
Furthermore, the region in and around Winston-Salem are highly developed and there are no large
tracts of land available for use as a land disposal site.
Winston-Salem is also concerned that the implementation of this alternative may result in the
removal of enough water from the Yadkin River Basin to cause water supply problems in the
lower reaches of the river during 7Q10 flow events. Currently, the permitted flow capacity of
Winston-Salem's wastewater treatment plants amounts to 14% of the rivers 7Q10 flow.

Alternatives to Discharge Analysis
City of Winston-Salem, North Carolina
Page 3
Reduction in Discharge Flow
The size and location of the Muddy Creek and Archie Elledge Wastewater Treatment Plants are
such that practical alternatives to continued discharge to surface waters do not exist. Winston-
Salem feels that it is necessary for us to continue discharging to a receiving stream but we have
adopted a strategy to minimize the rate of increase in our discharge flows by constantly surveying
our collections system to control routes of inflow and infiltration.
During the past two years we have concentrated these efforts in the collection lines we
incorporated into our system from the Town of Kernersville and Rural Hall. Our best estimate is
that we have reduced inflow and infiltration in these systems by —40%.
We have also established rainfall monitoring equipment in key drainage areas so we can correlate
increases in pumping rates at lift stations with rainfall events. This allows us to determine the time
lag between rainfall events and peak flow periods so we can locate likely areas where an I&I
problem may be occurring.
We are also reviewing proposals from various Engineering Firms to conduct a detailed study of
our system to identify ways to reduce uncontaminated flow into our POTWs.
Ref:alteff98

CITY OF WINSTON-SALEM
I'1JBI,I(; \V(RKS 1)EPAIZ'1'MEN'1'
I''O. BOX 2511, \VINS I'ON .SALEN1. NO11111 (:AROI.INA 27102
December 10, 1997
Mr. Mark McIntire
North Carolina Department of Environment,
Health and Natural Resources
Division of Water Quality
P.O. Box 29535
512 North Salisbury Street
Raleigh, North Carolina 27626-0535
Subject: NPDES Permit Renewal Application
Authorization to Delete Section IV of Standard Form A
City of Winston-Salem/Forsyth County
Dear Mr. McIntire:
Per our telephone conversation of December 10, 1997. Winston-Salem will not be required to
complete Section IV of Standard Form A when submitting the applications to renew the NPDES
permits for our Archie Elledge and Muddy Creek Wastewater Treatment Plants (NPDES #s;
NC0037834 and NC0050342 respectively).
This section of Standard Form A requires information on each plant's major contributing
industries. This information is also included in our annual Pretreatment Compliance Report and
DWQ has agreed to utilize the information in this report in lieu of our having to complete Section
IV of Form A.
Thank you for your cooperation in this matter and please call me at 910-784-4700 if you have any
questions.
Stanley B. Webb
Wastewater Operations Superintendent
PC: Mike Mickey; DEHNR Regional Office
Ref: let1210.97b

MAR-27-97 THU 12:15
P. 02
HAZENAND SAWYER
Environmental Engineers & Scientists
March 27, 1997
Mr. Donald L. Safrit, P.P.
North Carolina Department of Environment.
Health and Natural Resources
512 North Salisbury Street
P.O. Box 29538
Raleigh, North Carolina 27626-0535
Dear Mr. San:
Hazen and Sawyer, P.C.
4011 WastChase Blvd-
Ralel0h, NC 27607
919 833-7162
Fax [phone]
Re: Request for Interim Increase in
Permitted Capacity from 15 mgd to 16 mgd
Muddy Creek WWTP
City of Winston-Salem
This letter is submitted on behalf of the City of Winston-Salem related to the
City's request for an interim increase in permitted capacity at the Muddy Creek Plant
from 15 to 18 mgd. Hazen and Sawyer completed a process and hydraulic review of
the Muddy Creek Plant in 1994 which was subsequently submitted to DEHNR and
hereby certifies that the existing plant is fully capable of meeting applicable permit
limits at a permitted capacity of 18 mgd including ammonia and toxicity requirements.
Please call if additional information is needed.
Per your request, we have attached copies of previous correspondence
concerning residual chlorine requirements. Construction of approved dechiorination
facilities continues to be delayed pending approval of a spacial use permit by Davidson
County. Construction is proceeding on the hypochlorite facilities included in the
project.
Very truly yours,
HAZEN AND SAWYER, P.C.
4-1:Ai"a
es A. Cramer, P.E.
Vice President
JACtbpr
Attachments
cc: Barry Shearin
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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. Thomas W. Griffin
Utilities Superintendent
City of Winston-Salem
P.O. Box 2511
Winston-Salem, North Carolina 27102
ArA
�EHNR
March 27, 1997
Subject: Permit No. NC0050342
Muddy Creek WWTP
Flow Increase Request
Forsyth County
Dear Mr. Griffin:
This is in reference to a letter dated 2/13/97 from Mr. James Cramer, Hazen and
Sawyer, P.C., stating that the above referenced facility is capable of meeting current permit
limits at an increased flow of 18 MGD. The letter is sealed with the engineer's certification.
The certification is hereby approved by the Division; attached is your copy of the stamped
approved certification. A copy of this certification shall be maintained on file by the
Permittee for the life of the facility.
The permit limits for expansion ABOVE 15 MGD will take effect at the increased
flow of 18 MGD. The following are the summarized changes:
• There is a summer NH3 as N limit of 14.0 mg/1 at both outfalls.
• Effluent conductivity monitoring is required at both outfalls.
The Chronic Toxicity test for outfall 001 is to be performed at 5.5%.
Per Mary Cabe's conversation with Mr. Cramer today, the facility will be able to meet
the permit limits for expansion ABOVE 15.0 MGD. If I can be of further assistance or if you
have any questions on this matter, please contact Ms. Cabe at [phone], extension
518.
Attachment
Sincerely,
. Preston Howard,
q
r., P.�.
cc: Winston-Salem Regional Office
Central Files
Permits and Engineering Unit
Mr. James Cramer, P.E.
Hazen and Sawyer, P.C.
4011 WestChase Blvd.
Raleigh, NC 27607
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

HAZENAND SAWYER
Environmental Engineers & Scientists
February 13, 1996
Mr. Donald L. Safrit, P.E.
North Carolina Department of Environment,
Health and Natural Resources
512 North Salisbury Street
P.O. Box 29538
Raleigh, North Carolina 27626-0535
Dear Mr. Safrit:
Hazen and Sawyer, P.C.
4011 WestChase Blvd.
Raleigh, NC 27607
919 833-7152
Fax: [phone]
Re: Request for Interim Increase in
Permitted Capacity from 15 mgd to 18 mgd
Muddy Creek WWTP
City of Winston-Salem
This letter is submitted on behalf of the City of Winston-Salem related to the
City's request for an interim increase in permitted capacity at the Muddy Creek Plant
from 15 to 18 mgd. Hazen and Sawyer completed a process and hydraulic review of
the Muddy Creek Plant in 1994 which was subsequently submitted to DEHNR and
hereby certifies that the existing plant is fully capable of meeting current permit limits at
a permitted capacity of 18 mgd. Please call if additional information is needed.
Per your request, we have attached copies of previous correspondence
concerning residual chlorine requirements. Construction of approved dechlorination
facilities continues to be delayed pending approval of a special use permit by Davidson
County. Construction is proceeding on the hypochlorite facilities included in the
project.
Very truly yours,
HAZEN AND SAWYER, P.0
es A. Cramer, P.E.
Vice President
JAC/bpr
Attachments
cc: Barry Shearin
APPROVED
North Carolina Envir onmantal
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New York. NY • Armonk, NY • Upper saddle River. NJ • Raleigh. NC • Charlotte. NC • Richmond, VA • Hollywood, FL • Boca Raton, FL • Fort Pierce, FL • Jupiter, FL • Miami. FL • Bogota, D.E. Colombia

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Thomas W. Griffin
Utilities Superintendent
City of Winston Salem
P.O. Box 2511
Winston-Salem, North Carolina 27102
Dear Mr. Griffin:
AfirA
1:3EHNR
April 21, 1995
APR 2 5
Subject: NPDES Permit No. NC0050342 & NC0037834
Muddy Creek & Archie Elledge WWTPs
Winston-Salem Forsyth County Utility Commission
Mediation Settlement
Forsyth County
In accordance with your Petition for Contested Case Hearing filed on October 31,1994 and subsequent
mediation conference held March 10, 1995, we are forwarding herewith the subject draft permits. The
permits have been modified as follows:
• Fecal Coliform Limit: The summertime 200 MPN/100 ml monthly average and 400 MPN/100 ml daily
maximum fecal limit for both wastewater treatment plants (WWTP) will delayed until April 1,
1996.
• Residual Chlorine Limit: Since a continuous monitoring system will be used, the chlorine residual
permit limit for the Muddy Creek WWTP has been changed to 28 µg/1 as a daily average, to be
effective May 1, 1997. A special condition has also been added requiring the submittal of plans and
specifications for the chlorination/dechiorination system by March 1, 1996. t7
• Cyanide Limit: The effective date of the cyanide limit has been postponed until December 1, 1996. A
footnote to the limit specifies that upon completion of the one year cyanide study, if DEM determines
that there is no reasonable potential for the levels of cyanide in the effluent to exceed 6.6 1.1g/1, DEM
will remove the limit from the permit. A special condition has also been added to the permit which
requires Winston-Salem to complete a one year cyanide study analyzing the levels of cyanide in the
effluent and evaluating the collection system and wastewater treatment plant to determine sources of
cyanide in the effluent, incorporating by reference the mediated settlement agreement. Attached is a
typed copy of the mediated settlement agreement in which the cyanide study requirements are
detailed.
As a result of the mediation conference, DEM and Winston-Salem are required to schedule a joint
meeting with the third party consultant hired by the city to perform the cyanide study. Please contact
Coleen Sullins at 919/733-5083 (ext. 550) to schedule the meeting. The meeting should be held as soon as
possible and prior to May 5, 1995.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

City of Winston-Salem
NPDES Permit Nos. NC0037834 & NC0050342
April 21,1995
Page 2 . -
Attached are drafts of the revised permits. If any terms or conditions proposed by these
modifications are not in accordance with the mediated settlement, you should notify us by April 28,
1995. If these permit modifications are acceptable, the attached Notice of Withdrawal of Petition
should be completed by May 5,1995 and submitted as follows: the original to the Office of
Administrative Hearings, one copy to the Attorney General's Office as specified on the withdrawal
form, and one copy. to this division.
If you have any questions or comments, please contact Coleen H. Sullins of the Permits and
Engineering Unit at 919/733-5083 (ext. 550).
Sincerely,
cc Winston-Salem Regional Office
Jill Hickey, Attorney General's Office
Permits and Engineering Unit
Central Files

City of Winston-Salem
NPDES Permit Nos. NC0037834 & NC0050342
April 21, 1995
Page 3
Terms of the Mediated Settlement Agreement
City of Winston- Salem and NC Division of Environmental Management
March 10,1995
#1. With respect to the Muddy Creek NPDES Permit (NC0050342), the chlorine limit will become
effective on May 1,1997. Winston- Salem/Forsyth County will submit plans and specifications to DEM by
March 1,1996 for an authorization to construct the chlorination/dechlorination system.
#2. With respect to the cyanide limit:
• The City of Winston-Salem will obtain the services of a third party consultant to collect and preserve
effluent samples on a weekly basis for a minimum of one year, in accordance with standard methods
established by the U.S. EPA and submit split samples to at a minimum of two North Carolina
certified laboratories for analysis. The data will be reported in accordance with the procedures set
forth in the NPDES permit NC0037834.
• City of Winston-Salem will also use the third party consultant to evaluate the collection system and
wastewater treatment plant for sources of cyanide for a minimum of one year during the above effluent
evaluation process.
• If at the end of the year of sample collection and evaluation by the third party, it is determined by
DEM that there is no cyanide in the effluent or the levels of cyanide in the effluent do not have a
reasonable potential to exceed 6.6 µg /1, DEM will remove the permit limitation.
• If at the end of the year of sample collection and evaluation by the third party, it is determined by
DEM that there is reasonable potential to exceed 6.6 µg/1 cyanide in the effluent, the limit will take
effect in six (6) months.
• DEM and the City of Winston-Salem agree that the schedule as set forth above will be evaluated
upon the selection of the third party consultant and subsequent consultation with DEM the City and
consultant as to whether the 18 month time frame established above is feasible. This consultation
shall occur within the next 30 days. The consultation will establish the procedures for verification of
sample analysis to include the acceptable level of variation in the split samples.