NC0029190_Permit (Issuance)_19991027

NPDES DOCYNENT SCANNING COVER SHEET
NPDES Permit: NCO029190
I-77 Rest Area WWTP
Document Type: ermit Issuance s
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Staff Report
201 Facilities Plan
Instream Assessment (6713)
Environmental Assessment (EA)
Permit
History
Document Date: October 27, 1999
This document is printed oa reuse paper-more any
coateat on the reverse Bide

State of North Carolina
Department of EnvironmentAZ&A
and Natural Resources
Division of Water QualityAs k
James B. Hunt, Jr., Governor NCDENR
Wayne McDevitt, Secretary
KerrT. Stevens, P.E., Director
October 27, 1999
Mr. W. D. Johnson
N.C. Department of Transportation
P. O. Box 25201
Raleigh. North Carolina 27611
Subject: NPDES Permit Issuance
Permit No. NC0029190
NCDOT 1-77 Rest Area
Surry County
Dear Mr. Johnson:
In accordance with the request for discharge permit application received on February 3. 1998, the
Division is foneardine 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 Auenev dated December 6. 1983.
The following modifications have been included in the final permit:
• The addition of a quarterly monitoring requirement for the parameters of total nitrogen
and total phosphorus. This requirement has been added for the compilation of nutrient
data prior to the development of a nutrient management strategy for High Rock Lake
located in the Yadkin River Basin. This monitoring requirement has been added to
several dischargers within the subbasins above High Rock Lake.
• The addition of an effluent monitoring requirement for temperature. This requirement
has been added as a required test and measurement per 15A NCAC 2B .0508 (d).
Changes made since the draft permit mailed on September 8, 1999:
• The correction of the measurement frequency to continuous and the sample type to
recording for the flow parameter. These are the same monitoring requirements as in the
previous permit issued in September 1994.
• The deletion of upstream and downstream monitoring for conductivity and fecal coliform.
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 I50B 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.
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

Post Office Drawcr 27447. Raleigh. North Carolina 27611-7447. Unless such a demand is made, this permit
shall be final and hindin,.
Please take notice that this permit is not transferable. Part 11. E.A. addresses the requirements to be
followed in case of change in ownership or control of this discharge. 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 may be required.
If you have any questions or need additional information, please contact Ms. Jacquelyn Nowell at
telephone number (919) 7 33-5083.extension 512.
Sincerely,
Original Signed By
David A Goodrich
Kerr T. Stevens
cc: Central Files
Winston-Salem Reeional Office, Water Quality
rNPDES Unit, Permit File
Point Source Compliance/Enforcement Unit

Permit No. NCO029190
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.
N.C. Department of Transportation
is hereby authorized to discharge wastewater from a facility located at
DOT 1-77 Rest Area
on Interstate 77
southeast Of Lambsburg
Sorry County
to receiving waters designated as Naked Run in the Yadkin — Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts 1, II, III and IV hereof.
This permit shall become effective December 1, 1999
This permit and authorization to discharge shall expire at midnight on June 30, 2004
Signed this day October 27, 1999
Original Signed By
David A. Goodrich
Kerr T. Stevens. Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0029190
SUPPLEMENT TO PERMIT COVER SHEET
N.C. Department of Transportation
is hereby authorized to:
I. Continue to operate a 0.030 MGD wastewater treatment facility consisting of a
comminutor, parallel extended aeration basin, parallel clarifiers, dosing tank, two
surface sandfilters, tablet-type chlorinator, tablet-type dechlorinator, chlorine
contact chamber and step aeration. The facility is located DOT I-77 Rest Area, on
Interstate 77, southeast of Lambsburg, Sury County, and
2. Discharge from said treatment works at the location specified on the attached map
into Naked Run. which is classified WS-IV Trout waters in the Yadkin-Pee Dee
River Basin.

Ail). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Permit No. NCO029190
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall serial number
001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS
Monthly Weekly Daily Maximum Measurement Sample Sample
Average Average Frequency Type Location'
Flow MGD) 0.030 Continuous Recording I or E
BODS 30.0 mg/I 45.0 mg/I Weekly Composite E
Total Suspended Solids 30.0 m /I 45.0 m /I Weekly Composite E
NH3 as N Weekly Composite E
Dissolved Oxygen2 Weekly Grab E,U,D
Fecal Coliform (geometric mean) 2001100 ml 400/100 ml Weekly Grab E
H3 2/Month Grab E
Total Residual Chlorine 28 N /I 2/Week Grab E
Temperature °C Daily Grab E
Temperature °C Weekly Grab U,D
Chronic Toxicit 4 Quarterly Composite E
Total Nitrogen (NO2+NO3+TKN) --Quarterly Composite E
Total Phosphorus Quarterly Composite E
Notes:
1 Sample Locations: E- Effluent, I— Influent, U- Upstream 50 feet above the discharge point, D- Downstream 100 feet below the discharge point before the VA DOT rest stop
discharge.
2 The daily average dissolved oxygen effluent concentration shall not be less than 2.0 mg/I.
3 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 13%: February, May, August and November. See A (2) Supplement to Effluent Limitations Special Conditions.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

PerrniL No. NCO029190
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (2). CHRONIC "TOXICITY PERlvill' LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or
significant mortality to Ceriodaphnia dubia at an effluent concentration of 13.0%.
The permit holder shall perform at a minimum, quarterlu monitoring using test procedures
outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure." Revised
February 1998. or subsequent versions or "North Carolina Phase ❑ Chronic Whole Effluent
Toxicity Test Procedure- (Revised-February 1998) or subsequent versions. The tests will be
performed dur ng the months of February. May. August, and November. 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 Lest 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 11 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 THP313 for the Chronic Value.
Additionally. DWQ Form AT-3 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1 62 1
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch
no later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete. accurate, include all supporting chemical/physical measurements
and all concentration/response data, and be certified by laboratory supervisor and ORC or
approved designate signature. Total residual chlorine of the effluent toxicity sample must be
measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity
monitoring is required, the permittee will complete the information located at the top of the
aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number,
county, and the month/year of the report with the notation of "No Flow" in the comment area
of the form. The report shall be submitted to the Environmental Sciences Branch at the
address cited above.

Permit No. NCO029190
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
(continued)
Should the permittce 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.

NORTH CAROLINA SURRY COUNTY CLIPPING OF LEGAL
ADVERTISEMENT
ATTACHED HERE
AFFIDAVIT OF PUBLICATION
PUBLIC NOTICE
Before the undersigned, a Notary Public of said Count and State, duly Stale of North�Cep rorina
b rY Y Y Environmerial
commissioned, qualified and authorized by law to administer oaths, Management Commission
Post Office Box 29535
personally appeared George W- Stimmerl in Raleigh, NC 27626.0535
who being first duly swom,deposes and says: that he (she) is Notification of intent to
Publisher (Publisher or other officer or employee issue a slate NPDES
permit
authorized to make affidavit) of MOUNT AIRY NEWSPAPERS, INC., On the basis of thorough
engaged in the publication of'a newspaper known as MOUNT AIRY staffing review and applica-
NEWS, published issued, and entered as second class mail in the cif of I,{on of Article 21 of Chapter
I Y `43, General Statutes of
Mount Airy in said County and Slate; that be (she) is authorized to make orth Carolina, Public Law
92-500 and other lawful
this affidavit and swom statement; that the notice or other legal standards and regulations,
the North Carolina
advertisement, a true copy of which is attached hereto, was published in E n v 1 r o n m e n t a I
MOUNT AIRY NEWS on the followingd Management Commission
ates: proposes to issue a permit
to discharge to the persons
September 6 . 1999 listed below effective
10/25/99 and subject to I
special conditions.
Persons.wishing to_com-
menl upon or object to the
proposed dot
arm
ination=--
and that the said newspaper in wluch such notice, paper, document or are invited to submit same
in writing to the above
legal advertisement was published was, at the time of cacti and every address no later mar
such publication, a newspaper meeting all of the requirements and 10/9/99. All comment:
received prior to that date
qualifications of Section 1-597 of the General Statutes of North Carolina will be considered in the
formulation of final determi
and was a qualified newspaper within the meaning of Section 1-597 of nations regarding the pro
Posed permit. A public
the General Statutes of North Carolina. meeting may •be helc
where the Director of the
Division of Environmenta
This da of 19 9 9 Management finds a signi
10 Y �ht ember cation degree of public
interest in a proposed per
mit
A copy of the draft permit k
Sfgnature of person making allidavit available by writing or call
ing the Division o
E n v I r o n m e n t a
Sworn to and subscribed before me, this 10 day of Management. Po Bo,
29535,Raleigh,NC 27626'
0535, [phone].
sP }t-PIFl�B 19---�� The application and other
information may bE
inspected at these loca
(Ck 61) Ir Lot. tions during normal office
hours. Copies of the infor
Notary Public mation on file are available
upon request and paymen
M Commission expires: ust 17 ?004 of the costs of reproduc
Y p g r tion.All such comments of
requests regarding a pro
Posed permit should make
Gt,,% v•
11j`"•. reference to the NPDEE
.Permit. I
J`_•t�' %,� 1:NP-DES.No.-NC002919F
ice N.G Department o- 1/ n
�,pTAny 2. Transportation, PO Bor
_ p 25201,Raleigh,NC 27611.
5201 has applied for a per
mit renewal for a faciliti
located at DOT 1.77 Res'
Area on Interstate 77
southeast of Lambsburg
++ ��U.�t`( •,�� Surry County. The facilit
discharges 0.030 MGD
treated domestic waste
water form one outfall inic
Naked Run,a Class WS-IN
Trout stream In the Yadkin

Permit Notes
NC0029190
NC DOT 1-77 Rest Area is requesting renewal of existing permit. This is upstream of the
Va DOT 1-77 Rest Area. Discharges into Naked Run Branch. This stream is not on the
303d list for impaired streams in the Yadkin River Basin. Facility is permitted for 0.030
MGD with limits of:
BOD5 30 mg/l
NH3 monitor
DO 2 mg/I
TSS 30 mg/I
Fecal 200/100m1
TRC 10.6 ug/I
pH 6-9 SU
This rest area has a chronic toxicity test of 13%, in FEB MAY AUG NOV.
Review of compliance data indicated that facility appears to be well operated. It has met
all limits consistently for the past two years. There were some exceedences of the TSS
and NH3 limits in 1996. However, 1998 data seems to indicate improvements were made
and the plant is meeting current limits with no problems.
Recommend renewal of the permit with all existing limits. All parameters and
monitoring frequencies remain the same.

SUMMER
MODEL FOR I77 REST AREAS,
UPDATED CBOD & NBOD
- -- - -- ---- MODEL RESULTS - - ----- - - -
Discharger NC DOT I-77 REST AREA
Receiving Stream NAKED RUN
-------- ---------- - - - - --- ------ --- - --- ----- -- - -- -------- - - - ----- - - --- -
The End D.O. is 7 . 75 mg/l .
The End CBOD is 5 . 50 mg/l .
The End NBOD is 5 . 56 mg/l .
-------- -------- -- - - - - ---- -- --- -- - ---- -- ------ --- - - - -- ------ - - ---- - ---
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
----- - ---- ----- --- ---- --- - ---- -- --- -- -----
Segment 1 6 . 41 0 . 00 1
Reach 1 45 . 00 90 . 00 2 . 00 0 . 03000
Reach 2 45 . 00 27 . 00 0 . 00 0 . 02000
Reach 3 0 . 00 0 . 00 0 . 00 0 . 00000
Reach 4 0 . 00 0 . 00 0 . 00 0 . 00000
Reach 5 0 . 00 0 . 00 0 . 00 0 . 00000

*** MODEL SUMMARY DATA ***
Discharger NC DOT I-77 REST AREA Subbasin 030703
Receiving Stream NAKED RUN Stream Class : WS-IV TR
Summer 7Q10 0 . 2 Winter 7Q10 0 . 39
Design Temperature : 25 . 0
LENGTH SLOPE VELOCITY DEPTH Kd Kd Ka Ka KN
mile ft/mij fps ft design @20° designj @200 Idesignj
Segment 1 0 . 22 87 . 00 0 . 136 0 . 36 0 . 54 0 . 43 23 . 74 21 . 29 0 . 73
Reach 1
------ ---- - -- - - ---- -- ----- -- - - - - - ---- --------- -- - ---- - --- ------------- - - ---- - ---
Segment 1 0 . 01 87 . 00 0 . 149 0 . 37 0 . 56 0 . 44 26 . 06 23 . 38 0 . 73
Reach 2
----- ----- - -------- - - ----- - --- - - ------ ---------- - ---- ---- ----------- -- - ----- ----
Segment 1 0 . 17 117 . 60 0 . 164 0 . 36 0 . 60 0 . 48 38 . 71 34 . 72 0 . 73
Reach 3
--- - ----- -------- -- - - ----- ---- - - --- ------------- ----- --- - --- -------- - - ----- - ----
Segment 1 1 . 00 80 . 00 0 . 153 0 .40 0 . 54 0 . 43 24 . 62 22 . 08 0 . 73
Reach 4
- - ----- -- ------ - - --- - -------------------------- - ---- ---- ---- ------- -------- -----
Segment 1 0 . 80 50 . 00 0 . 143 0 . 47 0 . 48 0 . 38 14 . 33 12 . 85 0 . 73
Reach 5
- ------ - - ----- - - ----- - --- --------- ------------- - ---- ---- ---- ------- -- ------ -----
t
Flow CBOD NBOD I D .O.
cfs mg/l mg/1 I mg/l
Segment 1 Reach 1
Waste 0 . 046 45 . 000 90 . 000 2 . 000
Headwaters 0 . 200 2 . 000 1 . 000 7 . 440
Tributary 0 . 000 2 . 000 1 . 000 7 . 440
* Runoff 0 . 110 2 . 000 1 . 000 7 . 440
Segment 1 Reach 2
Waste 0 . 031 45 . 000 27 . 000 0 . 000
Tributary 0 . 000 2 . 000 1 . 000 7 . 440
* Runoff 0 . 110 2 . 000 1 . 000 7 . 440
Segment 1 Reach 3
Waste 0 . 000 0 . 000 0 . 000 0 . 000
Tributary 0 . 000 2 . 000 1 . 000 7 . 440
* Runoff 0 . 110 2 . 000 1 . 000 7 . 440
Segment 1 Reach 4
Waste 1 0 . 000 1 0 . 000 1 0 . 000 1 0 . 000

Tributary 0 . 000 2 . 000 1 . 000 7 . 440
* Runoff 0 . 110 2 . 000 1 . 000 7 . 440
Segment 1 Reach 5
Waste 0 . 000 0 . 000 0 . 000 0 . 000
Tributary 0 . 000 2 . 000 1 . 000 7 . 440
* Runoff 0 . 110 2 . 000 1 . 000 7 . 440
* Runoff flow is in cfs/mile

SUMMER
MODEL FOR I77 REST AREAS,
UPDATED CBOD & NBOD
Seg # Reach # Seg Mi D.O. CBOD NBOD Flow
1 1 0 . 00 6 . 41 10 . 11 17 . 79 0 . 25
1 1 0 . 01 6 . 53 10 . 05 17 . 66 0 . 25
1 1 0 . 02 6 . 63 9 . 99 17 . 52 0 . 25
1 1 0 . 03 6 . 72 9 . 93 17 . 39 0 . 25
1 1 0 . 04 6 . 80 9 . 87 17 . 27 0 . 25
1 1 0 . 05 6 . 87 9 . 81 17 . 14 0 . 25
1 1 0 . 06 6 . 94 9 . 76 17 . 01 0 . 25
1 1 0 . 07 7 . 00 9 . 70 16 . 89 0 . 25
1 1 0 . 08 7 . 06 9 . 64 16 . 76 0 . 26
1 1 0 . 09 7 . 10 9 . 59 16 . 64 0 . 26
1 1 0 . 10 7 . 15 9 . 53 16 . 52 0 . 26
1 1 0 . 11 7 . 19 9 . 48 16 . 40 0 . 26
1 1 0 . 12 7 . 23 9 . 42 16 . 28 0 . 26
1 1 0 . 13 7 . 26 9 . 37 16 . 16 0 . 26
1 1 0 . 14 7 . 29 9 . 31 16 . 04 0 . 26
1 1 0 . 15 7 . 32 9 . 26 15 . 93 0 . 26
1 1 0 . 16 7 . 34 9 . 21 15 . 81 0 . 26
1 1 0 . 17 7 . 36 9 . 16 15 . 70 0 . 27
1 1 0 . 18 7 . 39 9 . 11 15 . 59 0 . 27
1 1 0 . 19 7 . 40 9 . 05 15 . 48 0 . 27
1 1 0 . 20 7 . 42 9 . 00 15 . 37 0 . 27
1 1 0 . 21 7 . 44 8 . 95 15 . 26 0 . 27
1 1 0 . 22 7 . 45 8 . 90 15 . 15 0 . 27
1 2 0 . 22 6 . 69 12 . 61 16 . 37 0 . 30
1 2 0 . 22 6 . 70 12 . 61 16 . 36 0 . 30
1 2 0 . 22 6 . 71 12 . 60 16 . 35 0 . 30
1 2 0 . 22 6 . 72 12 . 59 16 . 34 0 . 30
1 2 0 . 22 6 . 72 12 . 58 16 . 33 0 . 30
1 2 0 . 23 6 . 73 12 . 58 16 . 31 0 . 30
1 2 0 . 23 6 . 74 12 . 57 16 . 30 0 . 30
1 2 0 . 23 6 . 75 12 . 56 16 . 29 0 . 30
1 2 0 . 23 6 . 76 12 . 56 16 . 28 0 . 30
1 2 0 . 23 6 . 77 12 . 55 16 . 27 0 . 30
1 2 0 .23 6 . 78 12 . 54 16 . 26 0 . 30
1 3 0 .23 6 . 78 12 . 54 16 . 26 0 . 30
1 3 0 . 24 6 . 91 12 . 48 16 . 16 0 . 30
1 3 0 . 25 7 . 03 12 . 41 16 . 06 0 . 30
1 3 0 . 26 7 . 13 12 . 35 15 . 97 0 . 31
1 3 0 . 27 7 . 21 12 . 28 15 . 87 0 . 31
1 3 0 . 28 7 . 29 12 . 22 15 . 77 0 . 31
1 3 0 . 29 7 . 35 12 . 16 15 . 68 0 . 31
1 3 0 . 30 7 . 41 12 . 09 15 . 58 0 . 31
1 3 0 . 31 7 . 46 12 . 03 15 . 49 0 . 31
1 3 0 . 32 7 . 50 11 . 97 15 . 40 0 . 31
1 3 0 . 33 7 . 54 11 . 91 15 . 30 0 . 31
1 3 0 . 34 7 . 57 11 . 85 15 . 21 0 . 31
1 3 0 . 35 7 . 60 11 . 79 15 . 12 0 . 32
1 3 0 . 36 7 . 63 11 . 73 15 . 03 0 . 32
1 3 0 . 37 7 . 65 11 . 67 14 . 94 0 . 32
1 3 0 . 38 7 . 67 11 . 61 14 . 85 0 . 32
1 3 0 . 39 7 . 69 11 . 55 14 . 76 0 . 32
1 3 0 . 40 7 . 70 11 . 49 14 . 68 0 . 32
1 4 0 . 40 7 . 70 11 . 49 14 . 68 0 . 32
1 4 0 . 50 7 . 64 10 . 94 13 . 81 0 . 33
1 4 0 . 60 7 . 63 10 . 43 13 . 02 0 . 34
1 4 0 . 70 7 . 65 9 . 95 12 . 28 0 . 35

1 4 0 . 80 7 . 68 9 . 50 11 . 60 0 . 37
1 4 0 . 90 7 . 71 9 . 09 10 . 96 0 . 38
1 4 1 . 00 7 . 73 8 . 70 10 . 37 0 . 39
1 4 1 . 10 7 . 76 8 . 33 9 . 82 0 . 40
1 4 1 . 20 7 . 78 7 . 99 9 . 31 0 . 41
1 4 1 . 30 7 . 81 7 . 67 8 . 83 0 . 42
1 4 1 .40 7 . 83 7 . 36 8 . 38 0 . 43
1 5 1 .40 7 . 83 7 . 36 8 . 38 0 . 43
1 5 1 . 50 7 . 72 7 . 08 7 . 94 0 . 44
1 5 1 . 60 7 . 68 6 . 82 7 . 53 0 . 45
1 5 1 . 70 7 . 67 6 . 57 7 . 15 0 . 46
1 5 1 . 80 7 . 68 6 . 33 6 . 79 0 . 48
1 5 1 . 90 7 . 69 6 . 11 6 . 45 0 . 49
1 5 2 . 00 7 . 71 5 . 89 6 . 14 0 . 50
1 5 2 . 10 7 . 73 5 . 69 5 . 84 0 . 51
1 5 2 . 20 7 . 75 5 . 50 5 . 56 0 . 52
Seg # Reach # Seg Mi D.O. CBOD NBOD Flow

DENR/DW Q
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO029 t90
Facility Information
(L) Facility Name: North Carolina De t. of Trans ortation-1-77 Rest Area
(2.) Permitted Flow: 0.030 MGD (5.) County: Sum
(3.) Facility Class: II (6.) Regional Office: Winston-Salem
(4.)Facility/Permit Status: Renewal (7.) USGS Topo Quad: A16SW
(i.e. New, Modification,
Existing or Renewal)
Stream Characteristics
(1.) Receiving Stream: Naked Run
(2.) Stream Classification: WS-IV Trout (6.) Winter 7QI0 (cfs): 0.6
(3.) Subbasin: 030703 (7.) 30Q2 (cfs): 0-7
(4.) Drainage. Area (mi2): 1.13 (8.) Average Flow (cfs): 1.37
(5.) Summer 7QI0 (cfs) 0.3 (9.) IWC (%): 13
Chances Incorporated into Permit Renewal
Proposed Changes Parameters Affected Basis for change
Addition of quarterly effluent Total Nitrogen, Total Per Yadkin Management Plan
monitoring Phosphorus for data gathering for the
development of nutrient
management strategy for lakes
Addition of effluent Temperature Required test and
monitoring measurement per 15A NCAC
213 .0508 (d)
Summary
NC DOT—I-77 Rest Area is requesting renewal of its existing NPDES
permit. The receiving stream, Naked Rum Branch, is not on the 303d list for
impaired streams. Review of compliance data indicates no real problems
with plant. Plant appears to be well operated. Has consistently passed the
chronic toxicity test, however there was no report in May 1999. Recommend
renewal of existing effluent limits.
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: 09/08/99
Permit Scheduled to Issue: 10/30/99
State Contact
Page I
Version: August 25, 1999

.r
If you have any questions on any of the above information or on the attached
permit, please contact Jacquelyn M. Nowell at [phone], extension 512.
DENRIDWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO029190 (Continued)
Copies of the following are attached to provide further information on the permit
development:
• Existing permit effluent sheets with changes noted (existing facilities only)
• Draft Permit
Signature:
NPDES Recommendation b
V
Regional Office Comments
i�u f low r�a a-u2emwrn a� -f-p.
l'iaA 11crm>7nu0-ti�. On Mi.A clraFE uts 'rnstaOIOAUcn>t-a /5 its
CcnrtQ ct ? freaks 1007o CIMM a k-
�'rnc-Q— fh.( . ems �u u /t�z�
W OW,b- t� th.en-c. and w� y �ma� �pstream� ¢ do um skit ears
rvtvn:ttcntn� �c.ec�u��errt�� ��"i Crmclu�vriz' �- ><emP. flnd wh;.tt 9vly
CtD�c Cgmdry (� R-cCL� d reW)out.6 too stY�cSz r t
U90.. t A�La" WyJ c LU5l tr2. ? �U 10- , W c '� r OVa� o�vW7K�✓
�Signa ure: �_3_9cq tpjj
Re ional Recommendation b : J
Reviewed By:
Signature: Date:tRe ional Su ervisor:
Signature: Date
NPDES Unit:
,mod �i �-- ►' y�y`l
Page 2
Version: August 25, 1999

3p 77
vo
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
JAMES B. HUNT JR. P.O. BOX 25201,RALEIGH,N.C. 27611-5201 E. NORRIS TOLSON
GOVERNOR SECRETARY
December 17, 1998
Mr. Charles H. Weaver, Jr.
NPDES Permits Unit
N. C. Division of Water Quality
P. O. Box 29535 0
Raleigh, NC 27626-0535
RE: NPDES Permit Renewal
Permit No. NC 0029190
I-77 Sorry County 77
Rest Area/Welcome Center 1/2 Miles S. of NC/VA Stateline
Dear Mr. Weaver:
The N. C. Department of Environment and Natural Resources has advised us by letter of
November 10, 1998 that the NPDES permit for the 1-77 Surry'Couniy WC/RA, Permit No.
NC 0029190, will expire on June 30, 1999.
This is to request a permit renewal for the NPDES permit at this facility. We do not
anticipate any major changes in this system. Sludge removal from this treatment plant is by private
license septage hauler. Quotations are requested from private haulers within the area and purchase
orders are issued by DOT Purchasing Unit. The licensed private hauler is required to furnish a
certification, along with the invoice, that the material was properly disposed of in an approved system.
The discharge point will not change and the volume may increase slightly.
Attached are three copies of the completed renewal application form along with
check #364977 in the amount of $200.00 for payment of the NPDES permit renewal processirtg fee.
Your attention and consideration of this request will be greatly appreciated.
Sincerely,
,� ..
W. D. Johnson
State Roadside Environmental Engineer
WDJ/ARP:cgc
Attachment
cc: Mr. C. A. Gardner, Jr., P.E.
Mr. C. L. Tomlinson
Mr. W. E. Hoke, P.E.
Mr. J. F. Sloop, P.E.

DIVISION OF ENVIRONMENTAL MANAGEMENT
July 13, 1994
MEMORANDUM �o moll
TO: Dave Goodrich ti q�'u//j ( i
THROUGH: Matt Matthews Y' /30 f y
@X� 6I
FROM: Kristie Robeson 4 /
SUBJECT: Permit Modification
NCDOT Surry Co. I-77 Rest Area
NPDES Permit No. NCO029190
Surry County
By cover letter dated June 30, 1994, the subject facility was issued NPDES Permit
No. NCO029190 with an effective date of August 1, 1994, and expiration date of June 30,
1999. Upon review of the permit a discrepancy was noted in the M3 page and the
conditions page of the permit. The M3 page of the permit indicates that toxicity testing
information is found in Part III, Condition D. However, the conditions page indicates
toxicity testing information is found in Part III, Condition E. It is the recommendation of
this office that the M3 page be modified to read "Chronic Toxicity (Ceriodaphnia) P/F at
13%: February, May, August, and November; See Part III, Condition E.
I appreciate your assistance to undertake the necessary steps to modify the existing
permit and incorporate the recommendation cited above. Should you have any questions,
please feel free to contact me at 2136.
cc: Steve Tedder
Winston Salem Regional Office
Larry Ausley
Central Files