NCG500175_Regional Office Historical File Pre 2018

PAT MCCRORY
ON
All) R. VAN DER VAART
S. JAY ZIMMERMAN
WaterResourcesDhmrwr
April 20, 2016
Mr. Damon, Crowther, QEHS Manager
Siemens Energy, Inc.
11 Westinghouse BIND
Charlotte, NC 28273
Subject: Compliance Evaluation inspection
Siemens Energy, Inc.
NPDES Permit N. NCG500175
Mecklenburg County
Dear Mr. Crowther:
Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted
at the subject facility on April 18, 2016 by Ori Tuvia. Your cooperation during the site visit was
much appreciated. Please advise the staff involved with this NPDES Permit by forwarding a copy
of the enclosed: report.
The report should be self-explanatory; however, should you have any questions
concerning this report, please do not hesitate to contact Ori Tuvia at [phone], or at
[e-mail].
Sincerely,
Ori Tuvia, Environmental Engineer
Mooresville Regional Office
Division of Water Resources, DEC!
C: NPDES Unit
MQ Files
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone. [phone] \ Fax: [phone] \ Customer Service.1-877-623-6748

United States Environmental Prat 'tin Agemy Form Approved.
EPA
Washington, D.C. 2N60 OMB No. 2040-0057
Water Compliance Inspection Report Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yrl day Inspection Type Inspector Fee Type
3 NCG500175 Ill Ej 121 1&04119 1 7 18 L! 19 1 LJ c{ 0
21 .._ :�J
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 CIA --- �---------Reserved ---
67 1.0 .:_ 70 � 71 [�j 72 [ 73 74 751 1 1 18
Section B: Facility Data
Name and Location of Facility Inspected (For industrial Users discharging to POTW, also Include Entry Time/Date Permit Effective Date
POTW name and NPDES permit Number) 9:15AM 16/04119 15110112
Charlotte Turbine Generator Service Center
5101 Westinghouse Blvd Exit TitnelDate Permit Expiration Date
Charlotte NG 282417002 %45AM 16104/1 20/07/ 1
Names) of Onsite Rep entative(s)/Titles(s)/Phorre and Fax 'Nu r(s) tither Facility Data
111
Damon G Crowther/a Control Environ"l Ofcr Safetyl704-551-5456 /7048515463
Name, Address of Responsible OfficiaVt le/Phone and Fax Number
Contacted
Damon G Crowther,P0 Box 7002 Charlotte NC
No
2824170021J704-551-5456[7045515463
Section C: Areas Evaluated During inspection (Check only these areas evaluated)
Permit a Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program 0 Facility Site Review Efftu ntlRet e ving Waters Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Names) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
On A Tuvia MRO Q004-663-16991
` 0
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
W. Corey Basinger MRO, WQ/170,4-2 5-2194#
EPA Form 560-3 (Rev 9-94) Previous editions are obsolete,
Page# 1

Permit: NCG5001 i5 Owner - Facility: Chartofte Turbine Generator Service Center-
Inspection Crate: 04/1912016 Inspection Tyne. Compliance Evaluation
Permit Y
sa No NA Ng
(if the present permit expires in 6 months or less). Has the permittee submitted a new C1 0
application?
Is the facility as described in the permit? SO El El
# Are there any special conditions for the permit? [IN ® 1:1
Is access to the plant site restricted to the general public? M 0 ® (l
Is the inspector granted access to all areas for inspection? N 0 © [
Comment: The sub`ect pgrimit expires on 7131/2020.
Record Keeping Yes No NA N
Are records kept and maintained as required by the permit? a ❑ Q `11
Is all required information readily available, complete and current? 0 Q 1:1'1
Are all records maintained for 3 years (lab, reg. required 5 years)?
Are analytical results consistent with datareported on DMRs? © 0 11 1:1
Is the chain -of -custody complete? In 0 El 1:1
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRscomplete: do they include all permit parameters? Q ❑ Is Q
Has the facility submitted its annual compliance report to users and D C? El E 0 Q
(if the facility is = or > 5 MGD permitted flow) Do they operate 247 with a certified operator El El 0 11
on each shift?
Is the ORC visitation log available and current? ® Q a Q
Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ a E]
Is the backup; operator certified at one grade less or greater than the facility classification? Q
Is a copy of the current NPD S permit available on site's 0 ❑ © Q
Facility has copy of previous year's Annual Report on file for review? ©-El N El
Comment: ; The r cords reviewed during the inspection were well or anized and maintained.
Self-monitorin` reports, Ct and calibration Iggg were reviewed for the eriod of 1201 d
312016.
labor too )Les No NA NE
Page# 3

Permit: NCG600176 Owner - Facffity: Charlotte Turbine Generator Service Center
Inspection Date: 04/19/2016 Inspection Type: Compliance EvaluatiOn
Laboratory
YSS- No NA L49
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified tab?
C1
13
00
# Is the facility using a contract tab?
1:1
0
N
C1
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
El
0
all
Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
11
El
0
0
Incubator (BOD) set to 20.0 degrees Celsius +/- 1 .0 degrees?
11
0
ME]
Comment: Qn-ske field analysis for PH gog temperature.
Flow hillasurement - Effluent
)Les No NA tig
# Is fiow, meter used for reporting?
0
0
Is
El
Is flow meter calibrated annually?
00NO
Is the flow meter operational?
13
El
0
El
(if units are separated) Does the chart recorder match the flow meter.?
El
0
Comment: Flow measurement is calgglated based on pumping Late g!2g ggipgft
Effigent Sarn2ling
Y2§ No M NE
Is composite sampling flow proportional?
0
13
ME]
Is sample collected below all treatment units?
0
0
1)
13
Is proper volume collected?
13
13
0
1:3
Is the tubing clean?
13
El
N
11
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
1-1
E3
N
13
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
13
11
M
0
representative)?
_q
Comment: The sutiggt permit Legui[es effluent rob samples,
EfflUgnt Pige
Yes No
NA_ NE
Is right of way to the outfall properly maintained?
N
El
0
11
Are the receiving water free of foam other than trace amounts and other debris?
N
El
El
0
If effluent (diffuser pipes are required) are they operating properly?
a
El
0
Cl
Comment:
Upstream / Downstream Sampling
Yes to tjA_ Ng
Page#
4

Upstream J fpownstream-Sarngling
Yes Na NA N
Is the facility sampling performed as required by the permit (frequency, sampling type, and
[
Q
sampling location}?
Comment.
© e ations & Maintenance
Yes No NA N
Is the plant generally clean with acceptable housekeeping?
0
[1 Q
0
Goes the facility analyze process control parameters, for ex; MLSS, MCRT, Settleable
11
d N
El
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Page#
5

ROY COOPER
MICHAEL S. REGAN
.�ecretczr
LINDA CULPEPPER
Ater Resources Interim Director
Environmental t talit
January 10, 2018
Damon Crowther, EHS Manager
Siemens Energy, Inc.
Post Office Box 7002
Charlotte, North Carolina 2873
Subject: Compliance Evaluation Inspection
Siemens Energy, Inc.
Charlotte 'Turbine Generator Service Center
IDES General Permit No. NCG500175
Mecklenburg County
Dear Mr. Crowther:
]Enclosed is a copy of the Compliance Evaluation inspection Report for the inspection conducted
at the subject facility on January 9, 2018, by Mr. Wes Bell of this Office.
Should you have any questions concerning this report, please do not hesitate to contact Mr. Bell
at (704) 35-21 2, or via email at we .bell ?nedetingov.
Sincerely,
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of rater Resources, NCDEQ
Enclosures:
Inspection Report
Approved Procedures for the Analyses of pH and Temperature
cc: Rusty Rozzelle, MCQP
MSC-1u17 Central -Basement
WB
State of North Carolina j Envirommnental Quality( Water Resources j Water Quality Regional Operations
Mooresville Regional Office 1610 East Center Avenue, Suite 3101 Mooresville, North Carolina 28t 15
704-663-1699

—n
(See attachment summary)
Name(s) and Signatur*s) of Ins p s Agency/OfficePhone and Fax Numbers Date
Wes Bell 17MRO WOI[704-663-1699 Exil
Signature of Management 0 A Reviewer Agency/hone and Fax Numbers Date
W. Corey Basinger MRO WQ//704-235-21941
EPA Forril 3560-3 (Rev 9-94) Previous editions are obsolete,
Alec
Page#

NPDES
NCt 500176 1 1 e
Sent on ©: Summary a
/day Inspection Type
1109 117, 18ICI

Permit.- NCG500176 owner.Facility: Chatiotte'rurbine Generator Service Center
Inspection Date: 01109/2018 Inspection Type- Compliance Evaluation
mit expires in 6 months or less). Has the permittee submitted a new
ascribed in the permit?
3ecial conditions for the permit?
lant site restricted to the general public?
ranted access to all areas for inspection?
staff.
Record Keeolno
Jos fL2 DLA, RE_
Are records kept and maintained as required by the permit?
MOOO
Is all required information readily available, complete and current?
0
000
Are all records maintained for 3 years (tab. reg. required 5 years)?
a
000
Are analytical results consistent with data reported on DMRs?
0
Ono
Is the chain -of -custody complete?
N
000
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
0
Are MRS complete: do they include all permit parameters?
13
0
9
0
Has the facility submitted its annual compliance report to users and DWQ?
0
0
a
0
(if the facility is = or > 5 MCI permitted flow) Do they operate 24/7 with a certified operator
0
0
a
0
on each shift?
Is the ORC visitation log available and current?
13
0
a
0
Is the ORC certified at grade equal to or higher than the facility classification?
13
0
a
0
Is the backup operator certified at one grade less or greater than the facility classification?
13
0
a
0
Is a copy of the current NPDES permit available on site?
a
0
11
11
Facility has copy of previous year's Annual Report on file for review?
1:1
1:1
a
0
Page#
3

Pennit: NCG500176 owner. Fe,:111 ty, Charlotte Turbine Generator Service Center
Inspection Date: 01/09/2018 Inspection Type: Compliance Evaluation
112jCream I p9wrlstream §aMPII[jg
Ys! No MAN-9
Comment:
022Latlonj Lt Maintenance
Yn N2,NA N9
Is the plant generally clean with acceptable housekeeping?
a 0 0
1:1
Does the facility analyze process control parameters, for ex: MLSS, MORT, Settleable
OOMO
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The ngO:p_gntgl;_t o_oliag w&[ jj gischgr2!gd into a larg§ pgno 2guigped LNiLh multi le LO_Ws
of el Voted IgLay nozzles coolie g) 2rigr to di§_char ge. The §2W ngz_ile §y§Lem is prima6ly
used during the Summer Season. No chemigal§, jbiociggs, corrosion inhitiLoLs, etc. e .j AL
added to the noO:go-nLagt- co lie water gy§,teM. All tLot!jr tjowd2wn and air corngressor
ggnden§,aLe jilchigrges, are ggnygeyed to, the saoita!y sewer §y§Lem Charlotte WtiterL
Flow Measurement - Effluent
Y_qs_ L4g NA _Ng
# Is flow meter used for reporting?
11 0 a
0
Is flow meter calibrated annually?
1:1 0 all
IS the flow meter operational?
11 0 a
11
(if units are separated) Does the chart recorder match the flow meter.?
Comment: The effluent flows are based on the pum2 flow rates.
Effluent Pipe
yes No NA ME
Is right of way to the outfall properly maintained?
M0110
Are the receiving water free of foam other than trace amounts and other debris?
0 0 11
11
If effluent (diffuser pipes are required) are they operating property?
11 0 N
0
Comment: The effluent gpoared dear with no floatatle goliog or Loam.
Fage#

Charlotte, North Carolina
Prepared for:
SIEMENS
SIEMENS ENERGY, INC.
5 101 Westinghouse Boulevard
PO Box 7002
RECEIVED/DENR/DWR
Charlotte, North Carolina 28273
FEB 112015'
Water Quality
Permittinq Sectior
Prepared by:
*S&ME
S&ME, Inc.
RECEWD/NCMENRIDWR
9751 Southem Pine Blvd
APR 7 2015
Charlotte, North Carolina 28273
Engineering License No. F-0 176
WOROS
MOORESVILLE REGIONAL OFFICE
January 22, 2015

TABLE OF CONTENT
1.0 INTRODUCTION„ ... ..I
L I COOLING WATER INTAKE STRUCTURE: PERMIT.- ...... ... ..... .............. ...... ........ ............. ... ....... ____ .......
1
12 NoN- ONTACT COOLING WATER DISCHARGE PI RMFF................ .............. ............................. ., ....: ... ......1
2.0 EXISTING CERTIFICATE OFCOVERAGE .......
3.0 COOLING WATER INTAKE STRUCTURE ........ ........ ........ ............. ......... ............ ........ 4
3.1 SOURCE WATER PHYSICAL DATA . ......:.. .. ....:.... ... ....... . ..,....,....... ........ ,., . ,. ,........ 4
3.2 COOLING WA`L R INTAKE STRUCTURE DATA...... .. ......... . . ......... ........... ___ ... ,
3.2.1 Tamp House Design ...,......... ___ ........... ......r 5
3,2,2 Traveling Screens ..:.... . ... ........ . ..::... .................., ,.. ........ ... ........... ........ 5
3.23 Cooling Water Pumps ........ .......... ...... ,..,,........... ........ ..:.......,................... ' 6
3.3 SOURCE WATER BASELINE BIOLOGICAL CHARACTERIZATION DATA ........ :........ : ...... .`....,... ..........
3A COOLING WATER SYSTEM DATA.... » ....: ................ ..... ........ ....,.. ......... ....... , .. ...,....7
3.5 PROPOSED IMPINGEMENT MORTALITY (IM) REDUCTJON PLAN ....>...... ...... .. ............. ... .................. .. 8
3.6 PERFORMANCE: STUDIi 9
.7 OPERATIONAL STATUS . ...... ....... ___ ... ,, . ....... .,,.......... ....... ,................... ..... .............. . 9
3.8 ENTRAiNMFNT CHARACTERIZATION STUDY.... . ... ........... ..... .......... :.,............. ......... ..,... 9
3.9 COMPRI:III:;NSIVE TECLINICAL FEASIBILITY AND COST E At,UATIoN STUDY .,-............ ......... ........
10
3.10 BCNEFFFs VALUATION STUDY___ .............. ....I— ........ ... ................. .......................... ................... .........
10
111 NON -WATER QUALITY AND OTHER ENvtRoNM NTAL IMPACTS STUDY .......
10
4.0 NON -CONTACT COOLING WATER. DISCHARGE........ ..11
4.1 EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FS ............... . ... _ ..... ........ ....... .,. ..........
4.2 SAMPI;.ING L ATIONs .
1 I
4.3 NoN-CONTACTWATER DISCHARGE MONFrORiNG FORM .......:........ ......... ___ ... .... ............ ,......
12
4A AVA[LABU ITY of RFPOwrs......:... ..... ........ . ......._ ... ....... , ............. ,..., ..... ,...... ,
1
4.5 DUTY To REPORT NONCOMPLIANCE .... ......... .. ...... <. ....,..., ' ....... ,.,... ...:...,,, „ ....... ............... ....
12
5.0 CERTIFICATION . ................. ................... ................ ". .............. ............. ........ `..........14
FIGURES
Figure I Cooling Water Sampling Location RECEIVEDIDENROWR
Figure 2; Cooling Water Pipe Line Plan
FEB �
Figure Pump House Drawing
ter Quality,
TABLES Permitting Section
`Fable 1 Pump House Pumps ... ................................. ...:....................... .......................6
Table 2 Cooling Water Use........................................................................................8
Table 3 Traveling Screen Flow "velocities ...................................................................9
Table 4 Effluent Limitations and Monitoring Requirements'................ .............. .....................
I I
Table 5 Non -Contact Cooling Water Sampling Locations .............................. .'12
APPENDICES
Appendix I Cooling Water System Photographs
Appendix 11 General Permit No. NCG500000
Appendix III Non -Contact Cooling Water NPDES Discharge Monitoring Form
:i

Siemens Energy Inc., Charlotte Turbine Generator Service Center S&ME Project No.
CWIS-arid Non -Contact Cooling Water NPDES Permits
r235-14-050
Clean Water Act's Section 316(b). The intent of the permit is to regulate the CWIS of each
facility that withdraws more than 2 million gallons per day of water of which at least 25
percent is used for cooling water. The regulations are designed to protect fish and other
aquatic life from impingement (being pinned against cooling water intake structures) and
entrainment (being drawn into cooling water systems and affected by heat, chemicals or
physical stress).
For impingement mortality control, EPA proposes two potential compliance approaches:
(1) Install modified traveling screens equipped with fish buckets, a low-pressure wash
and a fish handling and return system, or
(2) Reduce through -screen velocity to 0.5 feet per second or less.
For entrainment control, EPA proposes maintaining screen openings of 0.56 inches or less.
1.2 Non -Contact Cooling Water Discharge Permit
The Siemens facility presently operates under the General Permit No. NCG500000 to
"Discharge Non-(,'ontact Cooling Water, Cooling Tower and Boiler Blowdown,
Condensate, Exempt Stormwater, Cooling Waters Associated with Hydroelectric
Operations, and Similar Wastewater Under the National Pollution DischargeElimination
System. " The specific permit number is NCG500175, issued 8/l/2012 and scheduled to
expire 7/31/2015. According to NC DENR web page for Wastewater NPDES permits the
renewal application is due by February 1, 2015. The previous renewal application form
identified three discharge points for the non -contact cooling water; OF-001, OF-002 and
OF-003.

Siemens Energy Inc., Charlotte Turbine Generator Service Center SWE Project No. 7235-14-050
CWIS and Non -Contact Coolie a Water NPMi Permits Janua!y 201
2.0 EXISTING CERTIFICATE OF COVERAGE
The Existing Certificate of Coverage (CoQ was issued under permit numb"1400ft
The Co C contains the following facility information:
1) Mailing address of facility owner/operator:
Company Name: Siemens Energy, Inc.
Owner Name: Siemens Energy, Inc.
Street Address: PO Box 7002
City: Charlotte
State: NC
ZIP Code: 28241
Telephone Number: 704.551.5100
Fax: [phone]
Email address: damon.crowtherCa)siemens.com
2) Location of facility producing discharge:
Facility Name: Charlotte Turbine Generator Service Center
Facility Contact: Damon Crowther
Street Address: 5101 Westinghouse Blvd.
City: Charlotte
State: NC
ZIP Code: 28273
County: Mecklenburg
Telephone Number: 704.551.5456
Fax: [phone]
Email address: damon.crowther0asiernenscom
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? ❑ Yes No
b) Number of discharge outfalls (ditches, pipes, channels, etc. that convey wastewater
from the property): Three (3)
c) What type of wastewater is discharged? Indicate which discharge points, if more than
one.
0 Non -contact cooling water Outfall(s) #: 001, 002, 003
❑ Boiler Blowdown Outfall (s) #:
F1 Cooling Tower Blowdown Outfall (s) #:
0 Condensate Outfall (a) #: 001, 002, 003
Z Other Outfall (s) #: 001, 002, 003
(Please describe "Other"): Stormwater runoff
-2-

Siemens Energy Inc., Chariotte Turbine Generator Service Center SWE Project No. 7235-14-01
CWIS and Non -Contact Coolino Water NPDES Permits January 200
d) Volume of discharge per each discharge point (in GPD):
#001: 10.8 X 10" #002:21200 #003: 51.700 #004:-
4) Please check the type of chemical [s] added to the wastewater for treatment, per each
separate discharge point (if applicable, use separate sheet):
n Chlorine El Biocides El Corrosion inhibitors n Algaecide Other
2 None
5) If any box in item (4) above [other than None] was checked, a completed Biocide 101 Form
and manufacturers' information on the additive must be submitted to the following addre,,
for approval:
NC DER / DWQ / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
retention ponds, settling ponds, etc.)? ❑ Yes 0 No
7) Discharge Frequency:
a) The discharge is: Z Continuous El Intermittent 0 Se,
i) If the discharge is intermittent, describe when the discharge will occur: —
ii) *Check the month(s) the discharge occurs: []Jan ❑Feb [Mar ❑Apr ElMay
❑Jun E3JuI ❑Aug Elsept ElOct ONov ❑Dec
b) How many days per week is there a discharge?
c) Please check the days discharge occurs: ]Sat. ]Sun. ❑Mon. ElTue. E]Wed.
[-]Thu. OFri.
-3-

The specific requirements arc
1,22 and 125 (40 CFR 122 an,
CFR 122.21(r) under the falli
§ 122.21 (r) (2)Souro
§ 122.21 (r) (3) Coolh
§ 122.21 (r) (4) Sourc,
§ 122.21 (r) (5) Z—'()—olh
§ 122.21 (r) (6) Pro o p
§ 122.21 (r) (7) Pero)
§ 122.21 (r) (8) 0 pert
§ 122.21 (r) (9) Entry,
§ 122.21 (r) (10) Com
§ 122.2 1 (r) (11) Bene
§ 122.21 (r) (12) Vo—n-
3.1 Source Water Phy
40 CFR 122.21(r) (2) specifli
A description and sce
body, including area)
and characterization
estimate the intakes
vice Center SWE Project No, 7235-14-050
.1anuary 2015
NTAKESTRUCTURE
Data required for the permit submittal is detailed in 4
ategories:
Phy sical Data
,r Intake Structure Data
Baseline Biol
-r S ystem,Qala
Reduction Plan
Studies
status
17haracterizationStudv
lve Te
chnical and Cost Evaluation Stu A
cation Stud?
9ualitv and Other Environmental Impacts Stu
)ata
)Ilowing information:
I 11t; WULt;l NVU1LiZ tl Lar.V VV vv%'u F"r,�
.Ylll�,. tA%.AAJ1U1J16 LV "UW. , V-- I ---e
first created in 1904 near Fort Mill, South Carolina, was rebuilt in 1924 and the take's
surface expanded to approximately 13,443 acres and 325 miles of shoreline. In addition to
supporting Wylie Hydroelectric Station, Lake Wylie also supports Allen Steam Station and
Catawba Nuclear Station with cooling water and provides water supply for Belmont and
Rock Hill. Full pond elevation at Lake Wylie is approximately 569.4 feet. Full pond is the
level of the reservoir that corresponds to the point at which water would first begin to spill
from the reservoir's dam; the crest of the spillway. The Annual Normal Operating Range
for the take in 2014 has a minimum elevation of 563.4 and a maximum of 569.4. The
average water level for Lake Wylie, based on daily readings over the last 12 months, was
567.0.
Water temperatures in the take at the Cooling Water Intake Structure vary seasonally as
shown in the chart below for 2014.
http://www.duke-energy.com/lakes/facts-and-maps/lake-wylie.asp
-4-

Siemens Energy Inc,, Charlotte Turbine Generator Service Center SAME Project No. 7235-14-050
CWIS and Non -Contact Coolina Water NPDES Permits January 2015
. .... ... ........... ...... ..... ..
Lake Wylie
Pump House Temperatures
i 35
30
25
a 20
. ... . ......... .
10
5
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2014
3.2 Cooling Water Intake Structure Data
40 CFR 122.21(r) (3) specifies the following information:
The design of the intake structure and its location in the water column, design
intake flows, daily hours of'operation, number of days of the year in operation, and
seasonal changes, if applicable; aflow distribution and water balance diagram that
includes each source of water to the facility, recirculating flows, and discharges,
and engineering drawings qfthe cooling water intake structure.
3.2.1 Pump House Design
According to design drawings by Kidde Constructors for the CWIS, dated February 6, 1968
(construction happened soon thereafter); the structure (see Photo I in Attachment 1) is a cast
in place concrete structure 50 feet long by 30 feet wide and has two levels for a total height
of 43.5 feet. The bottom floor level is located at elevation 545.0 (see Figure 3) or 22.0 feet
below the average water level of Lake Wylie in 2014.
3.2.2 Traveling Screens
The intake structure is fitted with two Link -Belt Model 45A traveling screens to remove
debris from the lake water. They are each 4 feet wide and 40 feet high (see Photo 3 for a
view of the tops of traveling screens and design drawing in Figure 3), and have screen mesh
openings of approximately 1/z inch (Photo 4). The traveling screens have two spray pumps,
(P-5 and P-6 on Figure 3 and see Photo 3) for back washing the screens to remove debris.
The debris is washed into a concrete trough to exit the pump house building and spill back
into the cove (Photo 5).
-5-

Siemens Energy Inc,, Charlotte Tu
CWIS and Non -Contact Cooling \A
Presently, only one of the tw
operated and for only 1.0 hoi
32.3 Cooling Water Pun
The dra-linors (Figure 3) sho,
1 1 4V%
2 20(
4 75
Originally, Siemens tested
vacuum system. Asa cons
significantly reduced. Purr
house.
merator Service Center SW E Project No, 7235-14-05C
DES Permits January _ 2gl r
ns the nearer screen shown in Photo 3) is routinely
lay, typically at 10:30 am.
TRUM, MMIN"Mom
Tablet
P
luence, the amount of wa
3 was taken out of corrur
A description qJ*the In
structure,
24
30
a
eterization Data
in:
Z5UUU1VV1;ZtL V1 ­iiai tvw, ju "aatwix 444 AiA . .....
County, South CarolinW.
A review of rare, threatened, and endangered species known to occur within the three
surrounding counties of Lake Wylie (Gaston, Mecklenburg and York), revealed two
vertebrate species; the American eel (Anguilla rostrata) and Carolina darter (Etheostoina
collis collis). Both species are listed as federal species of concern (FSC). FSC is an
informal term. It is not defined in the federal Endangered Species Act. In North Carolina,
the Asheville and Raleigh Field Offices of the US Fish and Wildlife Service (Service)
define Federal Species of Concern as those species that appear to be in decline or otherwi�
in need of conservation and are under consideration for listing or for which there is
insufficient infon-nation to support listing at this time. Subsumed under the to "FSC" ai
all species petitioned by outside parties and other selected focal species identified in Servi
3
strategic plans, State Wildlife Action Plans, or Natural Heritage Program Lists .
The Carolina Darter inhabits small- to moderate -sized streams in areas of low current
2 http:H awba-watereeLtake-, lie.as
3

Siemens Energy Inc., Charlotte Turbine Generator Service Center S& E Project No. 7235-14-050
WIS and Non:Cont ct Cooling Water NP ES Permits AAnimry MIS
velocity. Habitat substrates preferred by this species are usually characterized by mud,
sand, and sometimes bedrock. This darter seems to be tolerant of fine sediments covering
the substrate it inhabits. The Carolina Darter exists only in the Piedmont region from south-
central Virginia through North Carolina into north -central South Carolina. The range in
South Carolina is restricted to the Santee River Fain"I.
The American eel is a catadromous species that spawns in the Atlantic Ocean. This species
is more common near the sea rather than inland streams and lakes. The American eel lives
in freshwater as adults, usually in larger rivers or lakes, primarily swimming near the
bottom in search of food. The species prefers to bunt at night and resides in crevices or
other shelter from the light during the day, often times burying themselves in the substrate;
whether mud, sand or gravel.
list ofcommon sports fish that inhabit Lake Wylie can be obtained by visiting the South
Carolina Department of Natural Resources webste. A request for additional wildlife, fish
and habitat information collected by Duke Energy was requested on January 9, 2015. A
response from Duke Energy was received on January 16, 2015 that the Water Resources
group within Duke Energy would be able to provide additional information. 1-However, as of
this date, the additional data has not been received.
.4 Cooling Water System Data
0 Cl~ R 122.21(r) (5) specifies the following information:
The operation of the cooling water system including descriptions of reductions in
water withdrawals, recycled water-, proportion of the source water body withdrawn.
The Non -Contact Coaling Water is screened and pumped from the Pump House to the
Powerhouse and passes through the condensers of Chiller ##2 and 43, then discharges to the
Spray fond. Pumping records for cooling water withdrawal and return to Lake Wylie for
2013 is summarized in Table 2. With the reported average water withdrawal of 7,547,066
gallons per day and the pumps operating 4/7, the pumping rate is 5,241 gallons/minute
(gpm)
htt vv.clnr.sc. tav sva` su lemental freshatrFih carolinadarterCl2. d
htt : animal iversit .car /accounts/Anizuilia rostrat
ilitgj
jdnr.sc. ov freshW t r. tml
-7-

Siemens Energy Inc., Charlotte Turbine G
CVVIS and Non -Contact Coofinq Water NF
•
wim one rep0r= UaKC wyne surtace urca ot attu all avvaagv� UVPul VIC.V
the daily withdrawal calculates to be roughly 0.01 percent of the take volume.
3.5 Proposed Impingement Mortality (IM) Reduction Plan
40 CFR 122.21 (r) (6) specifies the following inforination:
A description of how the impingement mortality will be addressed, such as intake
screen modifications orflow reductions.
EPA specifies that impingement mortality can be addressed by installing modified traveling
screens equipped with fish buckets or reducing through -screen velocities to 0.5 feet per
second or less. Based on the design drawings (Figure 3), the Lake Levels, and the pumping
rates, the screen velocity calculations are shown in Table 3.
7 Wikipedia: h!!pL.//en.wikipediaor wiki/Lake W He
8-

Lake averse level 56TO MSL Lake minimum level 563.4 MSL
Bottom of CWS1 545 M L Bottom of CWSI 545.0 MSL
Water Lie' th 220 feet Water Depth_ 18.4 feet
Screen width 4 O feet Screen width 4.t1 feet
Flow area 88`.0 sq. ft. Flaw area 73.6 . ft.
F'u flow`rate 1,24I:O al/min F'um ` flow rate 5,241.0al/ruin
701:0 c . ft./min 701.Q cu. ft./min
117 cu. ft./sec 11.7 cu. ft./sec
Flaw velocitv 0.13 ft./sec Flaw velocitv 0.16 ft./sec
With using only one of the traveling screens, the screen velocity is calculated to he 0.13 feet
per second for the average lake water level, and 0.16 feet per second for the minimum lake
water level. Since these velocities are less than the EPA recommendation of 0.5 feet per
second, no Impingement Mortality Reduction Plain is required.
.6 Performance Studies
40 CFR 122.21(r) (7) specifies the following info ation;
A summary of biological survival studies conducted at the fa ilaty and a summary;
of any conclusions or results, including; site -specific studies addressing technologvj
f f icac , entr anment survi al, anti other mpingeme �t and en ainment mortality
.studies.
o biological survival studies are warranted for the facility.
3.7 Operational' Status
40 CFR< 122.21(r) (8) specifies the following information:
description of the ale of the unit; capacity utali al ionfor the previous S years, and
any major upgrades completed within the last 15 years.
The CIS was constructed in 1968 making the system 47 years old this year. The capacity
utilization for the past five years is the same as used. today. Pump #3 was removed in 2007
reducing the flow rate of the system to the present level of approximately 5,000 gpm.
3.8 Entrainment Characterization Study
40 CFP 122.21(r) (9) specifies the :following information:
,Requiredforfacilities withdrawing greater than 125 million gallons per day.
The screen openings are approximately 1 inch; complying to the EPA proposed
recommendation of maintaining screen openings of 0.6 inches or less for entrainment
-9-

Siemens Energy Inc., Charlotte Turbine Generator Service Center S&ME Project Na. 72 5-14-05
CWIS and Non-Contacl Cooling Water NPDE S Permits JgagM 2015
control. Since the withdrawal rate of5.7 million gallons per day is less than 125 million
gallons per clay; no Entrainment Characterization Study is required.
3.9 Comprehensive Technical Feasibility and Cost Evaluation Study
40 CFR: 122.21(r) (10) specifies the following information.
quired lbr facilities withdraiving greater than 125 million gallons per day.
Since the withdrawal rate 5.7 million gallons per clay is less than 125 million gallons per
day, no Comprehensive Technical Feasibility and host Evaluation Study is required.
3.10 Benefits Valuation Study
40 CFR 122.21(r) (11) specifies the following information:
Required,for facilities withdrawing greater than 15 million gallons per day.
Since the withdrawal rate 5.7 million gallons per day is less than 125 million gallons per
day, no Benefits Valuation Study is required.
.11 Non -Water Quality and Other Environmental Impacts Study
0 CFR 12 .21(r) (12) specifies the following info ation:
Required ;fi r,facilities withdrawing greater than 12,E million gallons per day.
i A i hL` :__ *Y Y'."._ ........11 .....,.e ... .._...,.
clay, no Non -Water Quality and Other Environmental Impacts Study is required.
10

Siemens Energy Inc., Charlotte Turbine Generator Service Center SWE Project No. 7235-14-050
CWIS and Non -Contact Coolie o Water NPDES Permits Janggry 2015
4.0 NON -CONTACT COOLING WATER DISCHARGE
The Siemens facility presently operates under the General Permit No. NCG500000 to
Discharge Non -Contact Cooling Water (Appendix 11). The specific permit number issued
for the Siemens facility is NCG500175, issued 8/l/2012 and scheduled to expire 7/31/2015,
4.1 Effluent Limitations and Monitoring Requirements
Part I of the General Permit specifies the effluent limitations and monitoring requirements
as indicated in Table 4.
Table 4
Effluent Limitations and Monitoring Requirements
Average Frequency TYPO
Flow Semi-annual) Estimate Effluent
Temperature Semi-annually Grab ffil
ent
ULstrearn & Downstre
Total Residual ITT pg/L (freshwater) Semi-annually Grab Effluent
Chlorine (TRC) 110 pg/L (saltwater)
Oil and Grease �5.0mg/L 20k mg/L. Semi-annually Grab Effluent
pH > 6.0 and < 9.0 standard units (freshwater) Semi-annually Grab Effluent
> 6.8 and < 8.5 standard units (saltwater)
ChemicalCrab Semi annually Effluent
Demand (
The temperature limit for fresh water is 2.8'C above natural water temperature. However,
the receiving water temperature in no case should exceed 32°C at the downstream
monitoring location for lower piedmont waters.
Since no chlorine is present in the discharge, TRC monitoring is not required. Oil and
Grease monitoring is not required because the cooling water does not contain any air
compressor condensate. Likewise, no water treatment or chemical additives are added so
the COD monitoring is not required. Monitoring requirements for the Non -Contact Water
Discharge permit consists of Flow, Temperature, and pH.
4.2 Sampling Locations
Figure I shows the seven cooling water sampling locations. The water is sampled at the
pump house (1) when taken from Lake Wylie [Photo I]. After it is used for cooling in the
plant, it is sampled just before discharging into the Spray Pond (2) [Photo 6]. As the water
flows from the Spray Pond principal spillway conduit (3) [Photo9] it is sampled before
entering the surface stream which flows back to Lake Wylie. When the water re-enters
Lake Wylie it is sampled at the dock at Cove Center (4) [Photo 10]. Some HVAC runoff is
_11-

•
4.4 Availability of Reports
Except for data determined to be confidentials, reports shall be made available for public
inspection at the offices of DWQ or at the site of the discharge within a reasonable time
period, not to exceed five (5) days. As required by the Act, effluent data shall not be
considered confidential.
4.6 Duty to Report Noncompliance
The permittee shall report to the central office or the appropriate regional once ofDW
any noncompliance which may endanger health or the environment. Any information shall
be provided orally within 24; hours from the time the pennittee became aware of the
circumstances. A. written submission shall also be provided within 5 days of the time the
8 under NCGS 143- 15. (a)( ) or Section 308 of the federal Act, 33 USC 1:318
-12-

Siemens Energy Inc., Charlotte Turbine Generator Service tenter SWE Project No. 7235-14-050
CWIS and Non -Contact Coofina Water NP ?ES Permits Jgnua2Q15
pertnittee becomes aware of the circumstances. The written submission shall contain a
description of the noncompliance, and its cause; the period of noncompliance, including
exact dates and times, and if the noncompliance has not been corrected., the anticipated time
it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent
reoccurrence of the noncompliance The following shall be included as information
which must be reported within 24 hours under this paragraph.
• Any unanticipated bypass which exceeds any effluent limitation in the permit.
• Any upset which exceeds any effluent limitation in the permit.
• Violation of a`maximum daily discharge limitation for any of the pollutants listed by
the Director in the permit to be reported within 24 hours.
13-

Siemens Energy Inc., Charlotte Turbine Generator Service Center SWE Project No, 7235-14-050
OWIS and Non -Contact Cooling Water NPDES Permits January 201
5.0 CERTIFICATION
This permit submittal must be signed and certified by a principal executive officer of at least
the level of vice-president, or his duly authorized representative, if such representative is
responsible for the overall operation of the facility from which the discharge described in
the permit originates. The signer certifies that they are familiar with the information
contained in this application and that to the best of their knowledge and belief such
infoanonis true, complete, and accurate; and makes the following certification:
I certify, under penalty of law, that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted.
Based on my inquiry of the person or persons who manage the system, or those
persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations.
Printed Name of Person Signing: Mark A. Pringle
Title: Vice President, Charlotte Energy Hub
(Signature is Applicant,} (te gned)
North Carolina General Statute 143-215.6 b (i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report,
plan or other document filed or required to be maintained under Article 21 or regulations of the Environmental
recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine
not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a
punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.)
-14-

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Page 4 of 7

Siemens Ene
CWIS and Nc
•
w
Cooling
46. i�UM50
t � �
•. • !i • • •
Sampling point at Cove Center.
Page 5 of 7

Siemens Energy, Inc.
MIS and Non -Contact Cooling Water #S&ME
QAU1= Prniar# Nr% 7911MA-n-nn
Df facility.
Above Photo Notes:
Outfall OF-003 from the northwest corner of the facility.
Page 6 of 7

Siemens
'rgYa Inc, *vS&ME
sn-Contact Coaling Water
A No. 7235=14-050

ER GENERAL PERMIT
�CG500000

STATE OF NORTH Cj
DEPARTMENT OF ENVIRONMENT Ali
DIVISION OF WATER.
GENERAL PERMIT NO
r
iA
IATURAL RESOURCES
LITY
;G500000
WASTEWATERS UNDER THE
lance with the provision of North Carolina :General Statute 143-215.1, otht
s permit shall become effective August 1, 2012.
s permit shall expire at midnight on July 31, 2015,
L7ri ' al signed by Matt Matthews
for Charles Wakild, P.E.
Director, Division of Water Quality `
By Authority of the Environmental Management Commission

General Permit NCG500000
PART I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FOR NON -CONTACT
COOLING WATER, COOLING TOWER AND BOILER BLOWDOWN, AIR COMPRESSOR
CONDENSATE AND SIMILAR WASTEWATERS
Mai=
T,qmperalur-�'�! 771
However, the receiving water temperature in no case to exceed 20'C at the
downstream monitoring location for trout waters.
Salt water classifications 0.8°C above the natural water temperature during the months of June, July and August
.2°C above the natural water temperature during any other months
However, the receiving water temperature in no cases to exceed 32'C at the
downstream monitoring location for salt waters due to the discharge of heated
liquids,
The Permittee shall demonstrate compliance with the effluent temperature limitations by monitoring the temperature
of the receiving stream upstream and downstream of the discharge outfall. The Division should be consulted in
selecting representative upstreani/downstream sampling locations. Upstream and downstream mogjtqKjpg_jg
not necessary if the discharffe is to a receiving stream that does not contain an flowing water At he
1-
time of discharge.
2. Limit and monitoring requirements apply only if chlorine is present in the discharge. The Division shall consider all
effluent TRC values reported below 50 gg/ L to be in compliance with the permit.
3. Monitoring requirement applies only for discharges of air compressor condensate,
4. Monitoring requirement applies only if water treatment and/or chemical additives, i.e. corrosion inhibitors, oxygen
scavengers, biocides or cleaning solvents are added to the system; see A, (4) for discharge additive restrictions.
Page 2 of 6
8/1/2012

General Permit NCG00000
All non -contact cooling water sample locations shall provide repres
prior to discharge commingling with any other waters or subst
characterization of a pollutant of concern.
discharge from the permitted discharge outfall.
There shall be no discharge of floating solids or visible foam in oth
A. ()' EFFLUENT LIMITATIONS D IW ONITORIN
FACILITIES — ONCE -THROUGH COOLING Wj
During the period beginning on August 1, 2012 and lasting until e
rable event that results in an actual
amounts.
e Permittee is authorized to &
)y the Permittee). Su
! i M•
•: :b8itil hbrine
f •
R
1. Effluent temperature will be regulated so that the temperature of the receiving stream does not increase more than.
Fresh water classifications 2.8°C above the natural water temperature
However, the receiving watertemperature in no case to exceed 29°C at the
downstream monitoring location for mountain and upper piedmont waters.
However, the receiving water temperature in no ease to exceed 2°C at the
downstream monitoring location for lower piedmont and coastal plain waters.
Trout water classifications O C above the natural water temperature due to discharge of heated liquids
However, the .receiving water' temperature in no case to exceed 20°C at the
downstream monitoring location for trout wasters.
Salt water classifications 0.8°G above the natural water temperature during the months of June, July and August
2.2°C above the natural water temperature during any other months
However, the receiving water temperature in no cases to exceed 32°C at the
downstream monitoring location for salt waters due to the discharge of heated
liquids.
The Permittee shall demonstrate compliance with the effluent temperature limitations by monitoring the temperature
of the receiving stream upstream and downstream of the discharge outfall. The Division should be consulted i
selecting representative upstream/downstream sampling locations. Unstrearn and downstream monitoring is not
necessary if the discharge is to a receiving stream that dues not contain any flowing water at the time o
discharge.
Page 3 of 6
8/1/2012

General Permit NCG500000
2. Limit and monitoring requirements apply 9AIA if chlorine is present in the discharge. The Division shall consider all
effluent TRC values reported below 50 gg/ L to be in compliance with the permit.
3. Monitoring requirement applies only if water treatment and/or chemical additives i.e. corrosion inhibitors, oxygen
scavengers, biocides or cleaning solvents are added to the system; see A. (4) for discharge additive restrictions.
All samples collected should be from a representative discharge event, a measurable discharge event that results in an
actual discharge from the permitted discharge outfall.
All non -contact cooling water sample locations shall provide representative samples of the discharge and require sampling
prior to discharge commingling with any other waters or substances, such as stormwater or surface water to enable
characterization of a pollutant of concern.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent
IN 1111111111011!1,11, 111 lill'F.,�'t 111A 1 11011911 IMIJIN:
I
11111 1 1
1 1&0 mq/L 1 20.0 mqJL I
PR > 6.0 and < 9.0 standard units (freshwater) Quarterly Grab Effluent
> 6.8 and < 8.5 standard units (saltwater) I
Total Residual Chlorine 1U pg1L (freshwater) Semi-annuallGrab Effluent
(TRC) 2 13.0 1 y (saltwater) I
Chemical Oxygen Demand Effluent
(COD) 3 Semi-annually Grab
1. The tailrace shall be visually inspected for oil sheens when a permitted discharge occurs immediately after the
lubrication of wicket gates (or other lubrication operations which might result in the discharge of oil and grease)
at the hydroelectric facility,
2. Limit and monitoring requirements apply a if chlorine is present in the discharge. The Division shall consider
all effluent TRC values reported below 50 gg/ L to be in compliance with the permit.
& Monitoring requirement applies piLly if water treatment and/or chemical additives i.e. corrosion inhibitors,
oxygen scavengers, biocides or cleaning solvents are added to the system; see A. (4) for discharge additive
restrictions.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pits occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with solvents pre -approved by the Division. The
Permittee is responsible for retaining documentation of all solvent approvals. Should the Permittee wish to change
cleaning solvents (other than solvents previously approved) a written request should be made to the Division including the
MSDS for the proposed solvent.
Page 4 of 6
8/l/2012

General Permit NCG500000
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit.
Non -discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility
operation.
All non•contact cooling water sample locations shall provide representative samples of the discharge and require sampling
prior to discharge commingling with any other waters or substances, such as stormwater or surface water to enable
characterization of a pollutant of concern.
All samples collected should be from a representative discharge event, a measurable discharge event that results in an
actual discharge from the permitted discharge outfall.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.
4SDS for the additive, and a map indicating the c
B. SCHEDULE OF COMPLIANCE
)f the pollutant before dilution with
appropriate location in the impounded waterbody. Effluent is the outflow from the powerhouse. The temperature
change between these two values is considered the heat added and judged for compliance with Note 1 of the permit
and 15A NCAC 2H.0211 0).
SECTION C. APPLICABILIMY
This permit is applicable to the following types of discharges defined below:
1. Non -contact cooling water and open recirculation cooling water systems used in industrial processes for the sole
purpose of cooling machinery and other equipment. Non -contact cooling water is defined as water used for cooling
which does not come into direct contact with any raw material, intermediate product, waste product or finished
product. Contact cooling water is defined as cooling water that comes into contact with raw material, intermediate
product, finished product, byproduct or waste product. Open recirculating cooling water systems, continuously reuse
the cooling water which passes through the heat transfer equipment. Open recirculating cooling water system
discharges to a Water Supply water body may require an individual NPDES permit. Contact cooling water discharges
require an individual NPDES permit.
2. Condensate wastewater from atmospheric cooling systems.
Page 5 of 6
8/1/2012

General Permit NCG500000
3. Blowdown wastewaters. Blowdown is defmed as the mir
discharging materials contained in the water, the further
exceeding limits established by best engineering practice.
)oling waters, waters from sumps and drains, dam
its General Permit
H shall include the following information:
ator
will occur.
i the site.
lints, the volume of discharge
iing waters and the stream
�y irrigatimE
WA& El
corrosion inhibitors, and cleaning solvents. Water treatment and chemical additives include any material that is added
to water used at the facility or to a wastewater generated by the facility to condition or treat water.
Page 6 of 6
8/1/2012

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i
JNTAC 1 COOLING A

NPDES Certificate of Coverage NCG600176
SIEMENS
Precipitation

North Carolina Department of Environmental Quality
11 Cif
Pit McCrory, Governor Donald R. van der as , ere
October 12, 2015
WQR S
r. Damon Crowther MOORFtiWLLE REGIONAL OFFJ�
Siemens Energy Inc
P.O. Box 7002
Charlotte, NC 28241-7002
Subject: Renewal of General Permit NCG500000
Charlotte Turbine Generator Service Center
Certificate of Coverage NCG500175
Mecklenburg County
Dear Permittee
The Division has renewed the subject General Permit. ,In response to your request for an updated
Certificate of Coverage (CoC) the Division hereby issues the updated version of NCG500175 under Genera
Permit NCG550000. It is issued pursuant to the requirements of North Carolina GeneralStatue 143-215.
and. the Memorandum of Agreement between North Carolina and the US Environmental :Protection agency
dated October 15, 2007 [or as subsequently amended].
If any parts, measurement frequencies or sampling requirements contained in this General Permit
are unacceptable to you, you have the right to request an individual permit by submitting an individual
permit application. Unless such demand is made, the certificate of coverage shall be final and binding.
General Permit, please` contact Charles Weaver of the NPDES staff [019 807-63-91 or
Charles. we avert�ncdonr. gov].
Si cer2y,
>fortimernan, D actor
Division of Water Resources
cc:
AWN
NPDES file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 512 North Salisbury Street, Raleigh, North Carolina 27694
Phone; 919 07-6300 / FAX [phone] I Internet: www.ncwaterquality,org
An Equal Opportunity/Affirmative Action Employer -50% Re ycled119°!a Post Consumer Paper

1 {
A
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500175
DISCHARGE OF NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE, EXE MPT STORMWATER, COOLING WATERS ASSOCIATED
WITH HYDROELECTRIC OPERATIONS, AND SIMILAR WASTEWATERS UNDER THE
NATIONAL P©LLUT T DISCHARGE ET.IIUIINATIfJN SYSTEM
In compliance with the provision of North Carolina General Statute l 43-21 .1, other lawful standards and
regulations promulgated and adapted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Siemens Energy Inc
is hereby authorized to discharge from a facility located at the
Charlotte Turbine Generator Service Center
5101 Westinghouse Blvd
Charlotte
Mecklenburg County
to receiving waters designated as the Catawba River Lake Wylie), a Mass -V & B stream in
subbasin 03-08-34 of the Catawba River Basin in accordance with the effluent limitations,
monitoring requirements, and other conditions set forth in Parts 1,11, III and. IV hereof.
This certificate of coverage takes effect October 12, 2015.
This Certificate of Coverage shall remain valid for the duration of the General Permit.
Signed this day October 1, 2015
for` a ;Zimmerman, Director-""
ivision of Water Resources
By Authority of the Environmental Management Commission
i
I

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
F'� ""- C E P
Governor Director Secretary
DIVISHON OF 'VVA I ER QUALITY
August 13, 2012
2`012
Mr, Damon Crowther
Siemens Power Generation, Inc. AFIOORESV�LLE 1
P.O. Box 7002 O'NA L 0 F F I C E
Charlotte, NC 28241-7002
Subject, Renewal of coverage / General Permit NCG500000
Charlotte Turbine Generator Plant
Certificate of Coverage NCG600175
Mecklenburg County
Dear Permittee-,
The Division is renewing Certificate of Coverage (CoC) NCG500175 to discharge under NPDES
General Permit NCG600000, This CoC is issued pursuant to the requirements of North Carolina General
Statue 143-215.1 and the Memorandum of Agreement between North Carolina and the US Environmental
Protection agency dated October 15, 2007 [or as subsequently amended].
If you have any questions concerning the requirements of the General Permit, please contact John
Hennessy [919 807-6377 or john.hsnnes,%y@ncdenrgovl.
c - ly,
r Charles Wail, P.E.
CC
:
tit *E
NPDES file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
612 North Salisbury Street, Raleigh, North Carolina 27604 Phone: [phone]M / FAX [phone] / Internet: www.newaterqua#ty.org NorthCarofina
An Equal Opportunity/Ormative Action Employer-- 50% Recycled/101/o Post Consumer Paper NaturWl�

TO DISCHARGE N1
BLOWDQWN,
NATION)
In compliance with the
regulations promul atei
is hereby authorized
located at
714 9 ME .1 f ZT.7-2 .
conditions set forth in farts I, II, 1II and. IV hereof.
This Certificate of Coverage shall become effective August 1
This Certificate of Coverage shall remain in effect for the d
Signed this day August 1.3, 2012
for Wakild, 'Director �-
Zision of Water Quality
By Authority of the Enironme

Vqk
SIEMENS
July 26, 2012
Division of Water Quality
Attention: Marcia Allocca
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Subject: NPDES Wastewater, #NCG500000, CoC NC G500175
NPDES Stormwater, #NCS000021
Siemens Energy, Inc.
Delegation of Signatory Authorization
mits (NPDES).
tther, EHS Manager
EHS, Specialist
EHS Specialist
Jell, EHS Specialist
Damon Crowther at -[phone].
Yours Truly,
SIEMENS ENERGY, INC.
Mark A. le
Vice President /C oto Energy Hub

ther, Damon G (E F PR GN CLT CSS QM
Crowther, Damon G (E F PR GN CLT CSS
Friday, July 27, 2012 12:02 PM
`Mitchell, Jeffery G.'
et: RE: Duly Authorized Representative
,iments: 2012072712004156.pdf
MINIM.
!rmit.
Address:
Marcia Allocca
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Sincerely,
Jeff Mitchell, Environmental Specialist
Charlotte -Mecklenburg Storm Water Services
W"t 1`6 YNITCAACIL �:bl
�I C I i:�
County Water Quality
�_OLgT) 0
700 North Tryon Street
Charlotte, NC 28202
Office 704.336.3926
rl I -PC, tj
Cell 980.721.3565
Fax [phone]
7/27/2012

SIEMENS
4
.dune 15, 201
NCDENR Division of Water Quality
Surface Water Protection -- Stormwater
Mr. Michael Parker, DWQ Moorseville
10 East Center Ave., Suite 301
1loorsville, NC 2115
REF.: Change in Outfall 002 & 003 Locations, NCG5 01 5
Gear Sir:
This letter serves as notification of the change in location of (utfalls 002 and 003 as self
V t 1
has changed.
Please call or email if further clarification is required.
Sincerely,
SIEMENS ENERGY, INC.
Damon G. Crowther
ENS Manger
Charlotte Turbine Generator plant
Enclosure(s)
1. Map: Area Surface Drainage and Stormwater Sampling Locations - NEW
. Map: Area Surface Drainage and Stormwater Sampling Locations -COLD

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€'iYDING Atria STORM SEWPR ¢NFGR ARYIN PROWDED BY VEMENS POKA PENCRAVON, INC.

\
.. . . . . . « m 2. .. ..

vvrs j Michael P. Easley Governor
»( William G. Ross Jr. secretary
' North Carolina Depailim tt ol'Envircnrmcra and Natural Rcsourw'-
( C'olcen Fl, Sullins, Director
Division of Winter Quality
December 3, 2008
MARK A PRINGLE
PLANTMANAGER
SIEMENS ENERGY INC
PO BOX 7002
CHARLOTTE NC 28241
Subject: NPDES Permit Modification — Ownership Grange
Facility; Charlotte Turbine Generator Service Center
Certificate of Coverage NC 50 175
Mecklenburg County
ty
Dear Mr. Pringle:
Division personnel have reviewed and approved your request for ownership cbange of the subject
certificate of coverage received on November 13, 2008 and supporting documents on December 1,
2008. This pertnit modification documents the change of ownership of the above reference facility.
Please find enclosed the revised certificate of coverage. All other tenns and conditions contained in the
original certificate remain unchanged and in full effect. This modification is issued under the requirements
of North. Carolina General Statutes 143-215.1 and the'Memorandum of Agreement between. North Carolina
and the t T.S. Environmental Protection Agency.
If you have any questions concerning this permit modification; please contact Laurie Singleton of the
Point Source Branch at 919 807-64.
Sine rely,
leer H. Sullins
Ai
RECr-
cc. Central Files y= tt
Surface Water Protection
Damon G. Crowther, Safety& Environmental Control Officer, Siernelow,94yri� ,ll
Fran McPherson, DWQ Budget Office Metter only}
7ES Unit File NCC 5 0175
hi'>ih.rrralirta
,1 rttirt
North Carolina Division ol° Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet. h2n.ennstate.nc.us 512 N. Safistruty St, Raleigh, NC 27004 FAX [phone]
An Equal OpportunitylAffirmative Acticin Employer— 50 fir Recycled/10% Post Consumer Paper

STATE OF NORTH CAROLINA NCG500175
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG500000
CERTIFICATE OF COVERAGE No. NCG500175
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER BLOWDOWN,
CONDENSATE AND SIMILAR WASTEWATERS 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,
SIEMENS ENERGY, INC.
is hereby authorized to discharge from a facility located at
CHARLOTTE TURBINE GENERATOR SERVICE CENTER
5101 WESTINGHOUSE BLVD
CHARLOTTE
MECKLENBURG COUNTY
in Parts 1, 11, 111, and IV hereof
This certificate of coverage shall become effective December 3, 2008.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Sigmed this day December 3, 2008.
n H.Sul ins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

VSIEMENS
January 24, 2008
JAN 2 5 ?Lioa
Mr. A4ichael L. Parker
Division of Water Quathy
North Carolina Department (?f Environment
And Natural Resources
,Mooresville Regional Qffice
610 East Center Avenue Suite 301
Mooresville, North Carolina 28115
S UBJE (7- Request to Discharge Non process waters
NPDES Certificate oj*Coverage ffo.,Ar(_,'G500l7.5
9eme ms Power Generation
5101 Westinghouse Boulevard
Charlotte, Mecklenburg County, North Carolina
Dear Mr. Parker:
This letter is to confirm our conversation of Wednesday January 23, 2008, requesting
authorization to discharge approximately 100,000 gallons of non process waters from our
clarifier tank on site to the receiving waters designated as Lake fYjdie, a classSw water, in the
Catawba River Basin. this type q( discharge is not authorized under our current ATPDE"S
Permit.
This request results from discovery ref a damaged pipe caused by corrosion ,factors which is
qffecting the quality of water fear plant use. Refurbishing the , "Ttem would comVist of' a
reasonable release qf eater from the tank, repair the line while providing an application of a
protective coating, then refilling the tankf6r normal use.
A britf, description of the clarifier tank has a capacity of approximately 250,000 gallons of
river water previously pumped from Lake Wylie. 7 his water is pranardy used for .sanitary
purpose with discharge to the Charlotte Alecklensurg Utility system, our local POT facility:
In addition, small amounts of water from the clarifier system is also used for non -contact
cooling with discharges under the APDE,'� General Permit.No. NCG500000. The only known
contaminants within this system would be small amount of chlorine added to the river water to
prevent alga growth.
Siemens believes there will be no related damage to the environment, or to the aquatic lift* of
the lake, as a result of this releave of water.
Siemens Power Generation, Ins, P,O, Box 7002
Charlotte, NC 28241

M
AA
Siemens is appreciative in your understanding (?f this matter in granting authorization to
release the requested contents of the clarifier to the Catawba River Basin. As you requested
Siemens Power Generation will release the water in afashion that will all ow.further oxidation
of any residual chlorine that may be present, while changing discharge locations along the rim
of the clarifter. As afinal measure, a sample of the discharge water downstream will
be collected and anal yzed.fbr total residual chlorine.
Ifdart should have an y questions, please do not hesitate to contact me at [phone]. 1 can
also be reached ky e-mail asfollows: bob, carpenter@s4emens. com
Sincerely,
"POW ER GE NE, RA,
Robert H. crr ente P
Site Environ ental
Meer

F."A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Coleen H. Sullins, Director
July 23, 2007
Robert H. Carpenter
Siemens Power Generation, Inc.
5101 Westinghouse Blvd
Charlotte, NC 28241-7002
Subject: Renewal of coverage / General Permit NCG500000
Charlotte Turbine Generator Plant
Certificate of Coverage NCG500175
Mecklenburg County
Dear Permittee:
U11mada,
requirements contained in this Genere
ss sucii aemanu is maue, une certaiieme oi coverage huan uu innu unu umullig.
McKay [919 733-5083, extension 595 or ia_n_i_e_s_._m-c_k-ayg-n-cr-n-a-il-.-n-etj
Sincerely,
3
&"q �xq
for Coleen H. Sullins
cc: Central Files
NPDES file
Vic,
LORI, , 4:""iILL 1'� .i' 1's; Lid
An Equal Opportunity/,
ter, Raleigh, North Carolina 27699-1617
rest, Raleigh, North Carolina 27604
/ FAX [phone] / Intemet: www,ncwaterquality.org
Mfirmative Action Employer - 50% Recycled/1 0% Post Consumer Paper
One
NofthCarohna
Natzmally

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT PAC 0000
CERTIFICATE OF COVERAGE NCG500175
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE AND SIMILAR WASTEWATERS UNDER THE
NATIONAL POLLUTANT DISCHARGE RGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina general Statute 14 - 1 .1, ether lawful standards and
regulations promulgated and adopted by the North Carolina. Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Siemens Power Generation, Inc.
is hereby authorized to discharge Non -contact Cooling Water & Condensate from a facility
located at
Charlotte Turbine Generator Plant
5101 Westinghouse Boulevard
Charlotte
Mecklenburg County
to receiving waters designated as Lake Wylie in subbasin 3034 of the Catawba River
Basin in accordance with the effluent limitations, monitoring requirements, and other
conditions sot forth in Parts I, 11,1I1 and. IV hereof.
This certificate of coverage shall becomeeffective August 1, 2007.
This Certificate of Coverage shall remain in effect for the duration of the general Permit.
Signed this day July 23, 2007.
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, ir,, Secretary
Alan W. Klimek, P.E., Director
November 15,2006
Robert Carpenter
Siemens Power Generation, Inc.
5101 Westinghouse Blvd
Charlotte, NC 28273
Subject: NPDES Permit NCG500000 renewal
Certificate of Coverage (CoC) NCG500175
Charlotte Turbine Generator Plant
Mecklenburg County
Dear Permittee:
The facility listed above is covered under NPDES General Permit NCG500000. NCG500000 expires
on July 31, 2007, Federal (40 CFR 122.41) and North Carolina (15A NCAC 2H.0105(e)) regulations require
that permit renewal applications must be filed at least 180 days prior to expiration of the current permit. If
you have already mailed a renewal request, you may disregard this notice.
To satisfy this requirement, the Division must receive a renewal request postmarked no later than
February 1. 2007. Failure to request renewal by this date may result in a civil penalty assessment. Larger
penalties may be assessed depending upon the delinquency of the request. This renewal notice is being sent
well in advance of the due date so that you have adequate time to prepare your application.
If any discharge previously covered under NCG500000 will occur after July 31, 2007, the
CoC must be renewed. Discharge of wastewater without a valid permit would violate North Carolina
General Statute 143-215, 1; unpermitted discharges of wastewater may be assessed civil penalties of up to
$25,000 per day.
If all discharge has ceased at your facility and you wish to rescind this CoC for if you have other
questionsl, contact me at the telephone number or e-mail address listed below.
Sincerely,
AND fVATU!Z A
Charles H. Weaver, Jr.
NPDES Unit NOV 1 6 200,
cc: Central Files
NPDES File 51 14
1617 Mail Service Center, Raleigh, North Carolina 27699.1617 One
512 North Salisbury Street, Raleigh, North Carolina 27604 NofffiCarohna
Phone: [phone], extension 511 / FAX [phone] / charles.weaver@ncmail,net Natmally
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Michael F. Easley, Govern
William G, Ross Jr., Secrets
North Carolina Department of Environment and Natural Resourc
Alan W. Klimek, P.E, Direct
Division of Water Quat
2005
Mr. Robert H. Carpenter, P.E.
Site Environmental Engineer
Siemens Power Generation, Inc.
PO Box 7002
Charlotte, NC 28241-7002
Certificate of Coverage NCG500175
Charlotte Turbine Generator Plant
Mecklenburg County
Dear Mr. Carpenter.
Division personnel have reviewed and approved your request to transfer coverage under the General Permit,
received on November 1, 2005.
Please find enclosed the revised Certificate of Coverage, a copy of General Wastewater Discharge Pen -nit
NCG500000, and a copy of a Technical Bulletin for General Wastewater Discharge Permit NCG500000. The terms
and conditions contained in the General Permit remain unchanged and in full effect. This revised Certificate of
Coverage is issued under 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 anycluestions, please contact the NPDES Pemutting Unit at [phone], extension 520.
Sin erely,
" UVA"I
an
cc: DWQ Central Files
,,�Mooreaville Reocatal Office, Surface Water Protection,
Stormwater and General Perants Unit Files
One �arolina
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
An Equal Opportunity/Affirmative Action Employer - 501/1. Recycled/1 0% Post Consumer Paper

STATE OF NORTH CY
DEPARTMENT OF ENVIRONMENT AN
DIVISION OF WATER
GENERAL PERMIT NO.
CERTIFICATE OF COVERA(:,
M11,1111: I F, I I '"'Ji I I ljfj,'X �SN A 4
MWOMM910 =1# FAUN
SIE
is hereby authorized to discharge
water or similar wastewater from a fa
CHARI
to receiving waters designated as Laki
effluent limitations, monitoring requii
Permit No. NCG500000 as attached.
This certificate of coverage shall becc
This Certificate of Coverage shall rery
Signed this day November 8, 2005.
xth Carolina General Statute
as amended,
ENS POWER GENERATION, INC.
BOILER BLOWDOWN AND
COOLING TOWER BLOWDOWN
ility located at
Mai
A. "n. Klimek,"P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
he

State of North Carolina 10mr-Sw4w
kTvWA
Department of Environment :o
'T
4Ad
and Natural Resources A&
Division of Water Quality
Michael F Easley, Governor
William G. Ross Jr., Secretary NCDENR
Alan W. Klimek, P.E., Director NORTH CAROLINA DEPARTMENT OP
ENVIRONMENT AND NATURAL, RESOURCES
July 26,2002
SUSAN SAUNDERS
SIEMENS WESTINGHOUSE TURBINE
4400 ALAFAYA TR
ORLANDO, FL 32826
Subject: Reissue - NPDES Wastewater Discharge Permit
Siemens Westinghouse Turbine
COC Number NCG500175
Mecklenburg County
Dear Permittee:
In response to your renewal application for continued coverage under general permit NCG500000, the Division of
Water Quality (DWQ) is forwarding herewith the reissued wastewater general permit Certificate of Coverage
(COC). This COC is reissued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
1994 (or as subsquently amended).
g information is included with your permit package:
A the Certificate of Coverage for your treatment facility
)f General Wastewater Discharge Permit NCG500000
)f a Technical Bulletin for General Wastewater Discharge Permit NCG500000
for compliance with any other applicable federal, state, or local law rule, standard, ordinance, order, judgment, or
decree.
If you have any questions regarding this permit package please contact Aisha Lau of the Central Office Stormwater
and General Permits Unit at [phone], ext. 578
Sincerely,
NC DrIf,"T', CIF
AN0,11i,tJ
for Alan W. Klimek, P.E.
JUL 3 1 2002
cc: Central Files
Stormwater & General Permits Unit Files
Mooresville Regional Office
1617 Mail Service Center, Paleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper