NC0085979_Issuance of Permit_20111223

•
Ara
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H.Sullins Dee Freeman
Governor Director Secretary
December 23, 2011
Mr. Eric Motzno
North Carolina Department of Transportation
4809 Beryl Road
Raleigh, North Carolina 27606
Subject: Issuance of NPDES Permit
NC0085979 NCDOT
Rosman Maintenance Facility
Transylvania County
Grade 1 P/C Facility
Dear Mr. Motzno:
•
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly,we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
This permit includes the following major changes from the draft permit sent to you on October 12, 2011:
• Turbidity monitoring and limit have been removed from the permit. The French Broad River, while
impaired for turbidity in some sections, is not at the discharge location.
• pH limits have been removed due to concern about naturally occurring low pH of the groundwater.
If any parts,measurement frequencies,or sampling requirements contained in this permit are unacceptable,you
have the right to an adjudicatory hearing upon written request within thirty(30)days after receiving this letter. Your
request must take the form of a written petition conforming to Chapter 150B of the North Carolina General Statutes,and
must be filed with the Office of Administrative Hearings, 6714 Mail Service Center,Raleigh,North Carolina 27699-6714.
Unless such demand is made,this permit remains final and binding.
This permit is not transferable except after notifying the Division of Water Quality. The Division may modify and
re-issue,or revoke this permit. Please notice that this permit does not affect your legal obligation to obtain other permits
required by the Division of Water Quality,the Division of Land Resources,the Coastal Area Management Act,or other
federal or local governments.
1617 Mail Service Center,Raleigh,North Carolina 27699-1617
Location:512 N.Salisbury St.Raleigh,North Carolina 27604 One
Phone:[phone] FAX:[phone] Customer Service:1-877-623-6748 NorthCarolina
Internet:http:!/h2o.state.nc.us 1 Natural/
An Equal Opportunity 1 Affirmative Acton Employer

Permit NC0085979
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,
North Carolina Department of Transportation
is hereby authorized to discharge wastewater from a facility located at the
NCDOT Rosman Maintenance Facility
100 Old Calvert Landfill Road
Brevard, NC 28716
Transylvania County
to receiving waters designated as the French Broad River in the French Broad River Basin
in accordance with effluent limitations,monitoring requirements, and other conditions set forth in Parts
I,If,III and N hereof.
This permit shall become effective February 1,2012.
This permit and authorization to discharge shall expire at midnight on September 30,2015.
Signed this day December 23,2011.
s
ljy-- leen H.Sullins,Director
vision of Water Quality
By Authority of the Environmental Management Commission

Permit NC0085979
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Permit NC0085979
A.(2.) ACUTE TOXICITY MONITORING(QUARTERLY)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the
North Carolina Procedure Document entitled"Pass/Fail Methodology For Determining Acute Toxicity
In A Single Effluent Concentration"(Revised-July, 1992 or subsequent versions). The monitoring shall
be performed as a Fathead Minnow(Pimephales promelas) 24 hour static test. The effluent
concentration at which there may be at no time significant acute mortality is 90% (defined as treatment
two in the procedure document). Effluent samples for self-monitoring purposes must be obtained
during representative effluent discharge below all waste treatment. The tests will be performed during
the months of January,April,July and October.
The parameter code for Pimephales promelas is TGE6C. All toxicity testing results required as part of
this permit condition will be entered on the Effluent Discharge Form(MR-1) for the month in which it
was performed,using the appropriate parameter code. Additionally,DWQ Form AT-2 (original)is to
be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh,N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete 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 any month,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 Section
at the address cited above.
Should any test data from either these monitoring requirements or tests performed by the North
Carolina Division of Water Quality indicate potential impacts to the receiving stream,this permit may
be re-opened and modified to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently then required by this permit,the results of such
monitoring shall be included in the calculation&reporting of the data submitted on the DMR&all AT
Form submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival 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.

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0085979/NCDOT Rosman Maintenance Facility
Facility Information
Applicant/Facility Name: NCDOT-Rosman Maintenance facility
Applicant Address: 4809 Beryl Road,Raleigh,NC 27606
Facility Address: NCSR 1388
Permitted Flow 0.0288 MGD
Type of Waste: 100%Chloride contaminated Ground Water remediation—Road Salt storage
facility
Facility/Permit Status: Active/Renewal
County: Transylvania
Miscellaneous
Receiving Stream: French Broad River Regional Office: ARO
Stream Classification: C-Trout State Grid/ G7NE
USGS Quad Rosman
303(d)Listed? Yes,Statewide Permit Writer: Jim McKay
impairment for Hg _
Subbasin: 04 03 01 Date: _ December 20,2011
Drainage Area(mi2): 103 Miles
Summer 7Q10(cfs) 72
Winter 7Q10(cfs): 86
Average Flow(cfs): 340
IWC(%): 0.06
Primary SIC Code: 4952
SUMMARY
NCDOT operates a 0.0288 MGD Ground Water Remediation(GWR)facility which originally was covered under
General Permit#NCG510365.In 1992,a salt(chloride)pollution plume was detected in the groundwater<1 mile
from the former salt storage facility operated by the NCDOT.Monitoring of the plume was done from 1992-1998.
The highest contamination in GW occurred 10/19/95,9950 mg/L in MW-3. The facility was not planning any
remediation;just pump it to the French Broad River. After performing an EAA in 1996,ARO suggested that the
facility pump the contaminated groundwater and discharge it into the French Broad River. On 10-2-96 the facility
was changed to an individual permit,NC0085979,that discharges into the French Broad River with monitoring
requirements.
The facility pumps from three(3)recovery wells contaminated with chlorides(road salt). The facility is required to
do monthly monitoring for flow,Chloride and pH.Quarterly monitoring is required for Chemicals-EPA Method
624/625 and Acute Toxicity(Fathead Minnow)Pass/Fail.
Originating in Transylvania County,the headwaters of the French Broad and Little Rivers are in Subbasin 04-03-01.
Most of this Subbasin is forested,and half of the land is protected as part of the Pisgah National Forest.According to
the EPA approved 2010 303(d) list for the French Broad River, there are approximately 43.4 miles of impaired
water, from Craggy Dam to the Tennessee State line. The waters are impaired for turbidity or for ecological/
biological integrity benthos in different sections,but do not include the Rosman discharge site.
TOXICITY TESTING:
Current Requirement: Acute P/F @ 90% (also recommended with renewal).
NCDOT Rosman Maintenance Facility GWR
NPDES NC0085979 Renewal
Page 1

Freshwater RPA
REQUIRED DATA ENTRY
Table 1. Project Information Table 2. Parameters of Concern
❑CHECK if HQW or ORw only Name Type Chronic Modifier Acute PQL Units
Facility Name NC DOT Rosman Maintenance Facility Par01 Arsenic C 50 FW ug/L
WWTP/WTP Class PC 1 Par02 Arsenic C 10 HH/WS ug/L
NPDES Permit NC0085979 Paros Beryllium NC 6.5 FW ug/L
Outfall 001 Par04 Cadmium NC 2 FW 15 ug/L
Flow,Qw(MGD) 0.029 Paros Chlorides(AL) NC 230 FW mg/L
Receiving Stream French Broad River Paros Chlorinated Phenolic Compounds NC 1 A ug/L
Stream Class C Trout Paros Total Phenolic Compounds NC 300 A ug/L
7Q10s(cfs) 72.00 C Par09 Chromium NC 50 FW 1,022 ug/L
7Q10w(cfs) 86.00 C Par09 Copper(AL) NC 7 FW 7.3 ug/L
30Q2(cfs) C Pardo Cyanide NC 5 FW 22 10 ug/L
QA(cfs) 340.00 C Pull Fluoride NC 1,800 FW ug/L 1
1Q10s(cfs) = Par12 Lead NC 25 FW 33.8 ug/L
Data Source(s) DMRs 2009-2011 YTD Parti Mercury NC 12 FW 0.5 ng/L
❑CHECK for MODEL Par14 Molybdenum NC 2,000 HH ug/L
Par15 Nickel NC 88 FW 261 ug/L
Par16 Selenium NC 5 FW 56 ug/L
Par17 Silver(AL) NC 0.06 FW 1.23 ug/L
Parte Zinc(AL) NC 50 FW 67 ugIL
Follow directions for data entry.In some cases a Par19
comment menu list the available choices or a Par20
dropdown menu will provide a list you may select
from.Error message occur if data entry does not Par21
meet input criteria. Par22
61 SA,
R PK
2011 RPA-Freshwater,input
12/20/2011

NC DOT Rosman Maintenance Facility REASONABLE POTENTIAL ANALYSIS Outfall 001
NC0085979 Qw = 0.0288 MGD •
Qw(MGD)= 0.0288 WWTP/WTP Class: PC 1
IQIOS(cfs)= 58.91 IWC @ 1QIOS = 0.08%
7QIOS(cfs)= 72.00 IWC @ 7Q1OS= 0.06%
7QIOW(cfs)= 86.00 IWC @ 7QIOW= 0.05%
30Q2(cfs)= NO 30Q2 DATA IWC @ 30Q2= N/A
Avg.Stream Flow,QA(cfs)= 340.00 • IWC @ QA= 0.01%
Receiving Stream: French Broad River Stream Class: C Trout CHRONIC TEST N/A ASSIGN 90%ACUTE TEST
PARAMETER TYPE STANDARDS&CRITERIA(2) J F REASONABLE POTENTIAL RESULTS RECOMMENDED ACTION
(1) NC WQS/ Applied '/2 FAV/ g
Z Il #Det. Max Pred Allowable Cw
Chronic Standard Acute Cw
•
Acute: NO WQS
Chlorides(AL) NC 230 FW(7Q10s) mg/L 29 29 3,520
Chronic: 383,333 No RP,Monitor but no limit
No value>Allowable Cw
2011 RPA-Freshwater,rpa
Page 1 of 1 12/20/2011

REASONABLE POTENTIAL ANALYSIS
y Chlorides(AL) Values"WITH
-PA "COPY"
STE Date Data BDL=1I2DL Results COMMAND
1 1600 1600 Std Dev. 440.7403
2 1000 1000 Mean 946.6
3 1400 1400 C.V. 0.4656
4 1300 1300 n 29
5 710 710
6 1300 1300 Mult Factor= 1.8
ug/L 7 1100 1100 Max.Value 2000.0 mg/L
ug/L 8 1300 1300 Max.Pred Cw 3,520.0 mg/L
9 1000 1000
10 1200 1200
11 1300 1300
12 1100 1100
13 960 960
14 970 970
15 1000 1000
16 910 910
17 640 640
18 860 860
19 1000 1000
20 2000 2000
21 920 920
22 850 850
23 150 150
24
25 210 210
26 960 960
27 1100 1100
28 110 110
29 120 120
30 380 380
31
2011 RPA-Freshwater,data
-2- 12/20/2011

AFFIDAVIT OF PUBLICATION
CLIPPING OF LEGAL ADVERTISING NORTH CAROLINA
ATTACHED HERE TRANSYLVANIA COUNTY
PUBLIC NOTICE Before the undersigned, a Notary Public of said
NORTH CAROLINA County and State,duly commissioned,qualified,and
ENVIRONMENTAL authorized by law to administer oaths, personally
MANAGEMENT appeared Sean A.Trapp,who being first duly sworn,
COMMISSION/NPDES. deposes and says: that he is Operations Manager
. UNIT 1617 MAIL
SERVICE CENTER. 1 (Owner, partner, publisher, or other officer or
RALEIGH,NC employee authorized to make this affidavit) of The
27699-1617 Transylvania Times, published, issued, and entered
NOTICE OF INTENT as second class mail in the Town of Brevard in said
,TO ISSUE A NPDES
WASTEWATER County and State; that he is authorized to make this
• PERMIT .. affidavit and sworn statement; that the notice or
North Carolina) other legal advertisement, a true copy of which is
'Environmental; attached hereto, was published in The Transylvania
Management Commission
proposes to issue a NPDES Times on the foll4owing dates:
wastewater discharge per-
mit to the person(s) listed October 17,2011
below. and that the said newspaper in which such notice,
Written comments regard-
ing
ing the proposed permit paper, document, or legal advertisement was
will be accepted until 30 published was, at the time of each and every such
days after the publish date publication, a newspaper meeting all of the
of this notice. The Director
of the N.C. Division off' requirements and qualifications of Section I-597 of
Water Quality (DWQ) may the General Statutes of North Carolina and was
hold a public hearing qualified newspaper within the meaning of Section
should there be a signifi- 1-597 of the General Statutes of North Carolina.
cant degree of public inter-
est. Please mail comments `-)/\
and/or information requests This Jv day of 10(kieft\PeA--- ,2011.
to DWQ at the above
address. Interested persona.'
may visit the DWQ at 512 (�(
N. Salisbury Street, (Signature of pe n making affidavit)
Raleigh, NC to review
information on file. �^
Additional information on Sworn to and subscribed� "� before me, this �.�J.f
NPDES permitsbe o and this � r`-C
notice may be found on our day of lUlAJ ,2011.
website: http://portal. /�
itdenr.org/web/wq/swp/ps/ 144:Lfl4
i�+ es/calendar, or by call
hg(919) 807-6304, Notary Public
North Carolina DOT hag
applied for renewal of itti LINDA M. MCCANTS
Rosman Maintenance NOTARY PUBLIC
Facility permit number Transylvania County,NC
NC0085979. Discharge My Commission Expires 4/27/2013
from the Ground water
Remediation facility in to
the French Broad River A
nch Broad River Basin.;
M10/17/1T