NC0000396_Administrative updates to Permit Application_20180223

DUKE
ENERGY,
PROGUSS
Certified Mail: 7016 2140 0001 0231 0893
File Pt.. 12520-B-01
February 23, 2018
Mr. Jeff Poupart
NCDEQ, Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Asheville Steam Electric Plant
NPDES Number NC0000396
Garry A Whisnant
Plant General Managei
Asheville Steam Electric Plant
Duke Energy Progress
ASVL PLT 1200 CP&L Dr
Arden, NC 28704
o 828.687-5201
f 828-687-5204
gamy whisnant@duke-energy com
RECEIVED/DENR/DWR
FEB 2 6 2018
Water Resources
Permitting Section
Administrative updates to NPDES permit applications
Dear Mr. Poupart -
The Asheville Steam Electric Plant submitted a chemical addition administrative update
to the NPDES application in November of 2011. Another update of the Form 2C Item
VI, was submitted with the supplemental application in 2014 and again in 2016. This
update includes a chemical used in the cleaning and maintenance of the process water
reverse osmosis system and may be sent to the ash pond in the reverse osmosis waste
stream The following update to this list represents a replacement of this chemicals due
to product improvements and/or availability
Hypersperse MCD7041
As needed
R O Anti-scalant
(Organic Polymer)
The Safety Data Sheets (SDS) for this chemical is enclosed for your information and
inclusion in the facility's application file. Also enclosed is an updated attachment to the
NPDES application entitled "Form 2C Potential Discharges" We do not anticipate any
changes to the permit being necessary based on this submittal This is being submitted to
update the administrative file. If you have any questions or if you need any additional
information, please contact Tina Woodward at (704) 3 82-45 85 or tina.woodward @ duke -
energy com.
Sincerely, n
6
Garry A. Whisnant
Asheville Plant Manager
Enclosures

NPDES Administrative Update
February 22, 2018
RO Chenucal list
cc Sergi Cherenkov
Complex NPDES Permit Supervisor
1617 Mail Service Center
Raleigh, NC 27699-1617
Landon Davidson
Asheville Regional Office Supervisor
2090 U S. Highway 70
Swannanoa, NC 28778

Duke Energy Progress, LLC
Asheville Steam Electric Plant
National Pollutant Discharge Elimination System Permit Number NC0000396
Form 2C - Item VI - Potential Discharges Not Covered By Analysis
Chemical
Estimated Quantity
Frequency
Purpose
Used (per ear)
Hydrazine (35%)
1840 Ib./yr.
Continuous
Oxygen scavenger in
boiler
Ammonium hydroxide
2730 Ib./yr.
Continuous
pH control of boiler
water
Sodium hydroxide
141,139 Ib./yr
Continuous
pH control of ash pond
(25%)
Sodium hydroxide
30 gallons
As required
pH control of boiler
50%)
water
Sodium hypochlorite
91,072 Ib./yr.
As required
Control of biological
(15%)
fouling on heat
exchangers
Sodium molybdate
100 pounds
As required
Corrosion control in
closed cooling water
system
Tetraammonia EDTA
35,000 pounds
Every 5 to 8 years
Boiler cleaning
(38%)
Urea (50%)
4165 tons/yr.
Continuous during
NOx control
high ozone months
Sulfuric acid (93%)
Variable
As needed
pH control of ash pond
Sulfuric acid 50%
Variable
As needed
pH control of ash pond
BetzDearborn Dustreat
11,400 pounds -
As required
Coal dust suppression -
DC9136
estimated
proprietary chemical
Fyrewash (detergent)
200 gallons
As needed
Combustion turbine
blade washing
Detergents/cleaning
Variable
As needed
Housekeeping
agents
Limestone (Calcium
40,000 tons/yr.
Continuous
Flue Gas
carbonate)
Desulfurization
Polymer (high weight,
3255 Ib./yr.
Continuous
Solids removal — FGD
anionic, emulsion -type)
wastewater
Calcium Hydroxide
435 ton/yr
Continuous
Applied to flue gases
(Hydrated Lime
for treatment
Coagulant (Sodium
3060 lb./yr.
Continuous
Solids removal — FGD
Sulphide)
wastewater
Sodium Hydroxide
17600 lb./yr.
Continuous
pH adjustment — FGD
25%
wastewater
Hydrochloric Acid
400 gallons -
Continuous
pH adjustment — FGD
30%
estimated
wastewater
Lime Away
Variable
As needed
Remove scale on UV
light system
Trac 101
11,177 Ib/yr
Continuous
Algae growth inhibitor
for FGD service water
Magnesium Hydroxide
Variable
Continuous
Applied to coal for slag
control
Calcium Carbonate
355 ton/yr
Continuous
Applied to coal for sla
Page 1 of 3 Rev. February 2018

Duke Energy Progress, LLC
Asheville Steam Electric Plant
National Pollutant Discharge Elimination System Permit Number NC0000396
Form 2C - Item VI - Potential Discharges Not Covered By Analysis
Page 2 of 3 Rev. February 2018
control
Aluminum Chloride
variable
As required
Water treatment
Hydroxide 25%-50%
processes, TSS control
(Alum)
Sumachlor 50
As needed
Coagulant for water
treatment filter
Hypersperse MCD7041
As needed
R.O. Anti-scalant
(Organic Polymer)
50% Caustic
Variable for R.O. pH
As needed for pH
R.O. pH adjustment
adjustment
adjustment
and
1000 gallons for
Periodic Typically 4/yr
R.O. cleaning per
for R.O. cleaning
R.O. cleaning
event
Hydrochloric Acid
1000 gallons/event
Periodic Typically 4/yr
R.O. membrane
cleanin
Citric acid
1000 gallons/event
Periodic Typically 4/yr
R.O. membrane
cleaning
Verseen 100
- 12 gallons
Periodic Typically 4/yr
R.O. Cleaning
Hydrogen Peroxide
- 1 gallon
Periodic Typically 2/yr
R.O. Cleaning
35%) 1
Biomate MBC781
- 1 gallon
Variable
2/yr for R.O. cleaning
and at each shut down
for la u .
Bisulfite (sodium
As needed
R O. layup
bisulfate
600gallons/event
Defoamer (Nalco
10 gallons
As needed
Used once for foaming
60103)
in absorber tower sum
Alkyl alcohol
Variable
As needed
Freeze conditioning
agent
Propylene Glycol
Variable
As needed
Freeze conditioning
agent
Calcium Chloride
Variable
As needed
Freeze conditioning
agent
Diethylene glycol
Variable
As needed
Freeze conditioning
agent
Glycerin
variable
As needed
Freeze conditioning
agent
Fertilizer
Variable
As needed
Wetland treatment cell
plant management
Pelletized Lime
Variable
As needed
Wetland treatment cell
plant management
Pol Floc 12
Variable
Continuous
TSS Control
PolyClean 7
Variable
As needed
Organic growth inhibitor
for WWT polymer tank
Page 2 of 3 Rev. February 2018

• Duke Energy Progress, LLC
Asheville Steam Electric Plant
National Pollutant Discharge Elimination System Permit Number NC0000396
Form 2C - Item VI - Potential Discharges Not Covered By Analysis
EcoGreen
Variable
As needed
Dust suppression for
ash stockpile
Nalclear 7738
Variable
Continuous
TSS control in rim ditch
VpCI-690
As needed
Corrosion inhibitor
Page 3 of 3 Rev. February 2018

GE Power
Water & Process Technologies
SAFETY DATA SHEET
HYPERSPERSE* M DC7041
1. Identification
Product identifier
Other means of identification
Recommended use
Recommended restrictions
Company/undertaking identification
GE Betz, Inc
4636 Somerton Road
Trevose, PA 19053
T 215 355 3300, F 215 953 5524
Emergency telephone
[phone]
2. Hazard(s) identification
Physical hazards
Health hazards
OSHA defined hazards
Label elements
Signal word
Hazard statement
Precautionary statement
Prevention
Response
Storage
Disposal
Hazard(s) not otherwise classified
(HNOC)
Supplemental information
HYPERSPERSE MDC7041
None
Membrane Deposit Control Agent
Noneknown
Corrosive to metals
Not classified
Not classified
�Y
Warning
May be corrosive to metals
Category 1
Keep only in original container
Absorb spillage to prevent material damage
Store in corrosive resistant/ container with a resistant inner liner
Dispose of waste and residues in accordance with local authority requirements
None known
None
3. Composition/information on ingredients
Mixtures
The manufacturer lists no ingredients as hazardous according to OSHA 29 CFR 19101200
*Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret
Version 10
Effective Date Jun -28-2017
Previous Date Jun -15-2017
Page 1/8

4. First-aid measures
Inhalation
If breathing is difficult, remove to fresh air and keep at rest in a position comfortable for breathing Call a
physician if symptoms develop or persist
Skin contact
Rinse skin with water/shower Get medical attention if irritation develops and persists
Eye contact
Rinse with water Get medical attention if irritation develops and persists
Ingestion
If ingestion of a large amount does occur, call a poison control center immediately
Most important
Direct contact with eyes may cause temporary irritation
symptoms/effects, acute and
delayed
Indication of immediate medical
Treat symptomatica ly
attention and special treatment
needed
General information
Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect
themselves
5. Fire -fighting measures
Suitable extinguishing media
Water fog Foam Dry chemical powder Carbon dioxide (CO2)
Unsuitable extinguishing media
Do not use waterjet as an extinguisher, as this will spread the fire
Specific hazards arising from the
During fire, gases hazardous to health may be formed
chemical
Special protective equipment and
Wear full protective clothing, including helmet, self-contained positive pressure or pressure demand
precautions for firefighters
breathing apparatus_, protective clothing and face mask
Fire fighting
In case of fire and/or explosion do not breathe fumes Use standard firefighting procedures and consider
equipment/instructions
the hazards of other involved materials Move containers from fire area if you can do so without risk
Cool containers /tanks with water spray
Specific methods
Use standard firefighting procedures and consider the hazards of other involved materials
6. Accidental release measures
Personal precautions, protective
Keep unnecessary personnel away Keep people away from and upwind of spill/leak Wear appropriate
equipment and emergency
protective equipment and clothing during clean-up Do not touch damaged containers or spilled
procedures
material unless wea-ing appropriate protective clothing Ensure adequate ventilation Local authorities
should be advised if significant spillages cannot be contained For personal protection, see section 8 of
the SDS
Methods and materials for
Prevent entry into waterways, sewer, basements or confined areas
containment and cleaning up
Large Spills Stop the flow of material, if this is without risk Dike the spilled material, where this is
possible Absorb spil age to prevent material damage Use a non-combustible material like vermiculite,
sand or earth to soak up the product and place into a container for later disposal Following product
recovery, flush area with water
Small Spills Wipe up with absorbent material (e g cloth, fleece) Clean surface thoroughly to remove
residual contaminat on
Never return spills to original containers for re -use For waste disposal, see section 13 of the SDS
Environmental precautions Avoid discharge into drains, water courses or onto the ground
7. Handling and storage
Precautions for safe handling Avoid prolonged exposure Provide adequate ventilation Wear appropriate personal protective
equipment Observe good industrial hygiene practices Use care in handling/storage
Conditions for safe storage, Store in a cool, dry place out of direct sunlight Keep only in the original container Store away from
including any incompatibilities incompatible materials (see Section 10 of the SDS) Store in accordance with
local/regional/national/international regulation
8. Exposure controls/personal protection
Biological limit values No biological exposure limits noted for the ingredient(s)
Appropriate engineering controls Good general ventilation should be used Ventilation rates should be matched to conditions If
applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain
airborne levels below recommended exposure limits If exposure limits have not been established,
maintain airborne levels to an acceptable level
Individual protection measures, such as personal protective equipment
Eye/face protection Splash proof chemical goggles
Material name HYPERSPERSE* MDC7041 page 2 / 8
Version number 10

Skin protection
Hand protection
Other
Respiratory protection
Thermal hazards
General hygiene considerations
Wear appropriate chemical resistant gloves Suitable gloves can be recommended by the glove supplier
Wear suitable protective clothing
If engineering controls do not maintain airborne concentrations below recommended exposure limits
(where applicable) or to an acceptable level (in countries where exposure limits have not been
established), an approved respirator must be worn
Wear appropriate thermal protective clothing, when necessary
Always observe good personal hygiene measures, such as washing after handling the material and
before eating, drinking, and/or smoking Routinely wash work clothing and protective equipment to
remove contaminants
9. Physical and chemical properties
Appearance
Color
Colorless
Physical state
Liquid
Odor
Slight amine
Odor threshold
Not available
pH (concentrated product)
111
pH in aqueous solution
113 (5% SOL)
Melting point/freezing point
23 °F (-5 °C)
Initial boiling point and boiling
215 °F (102 °C)
range
Flash point
Not applicable
Evaporation rate
< 1 (Ether= 1)
Flammability (solid, gas)
Not applicable
Upper/lower flammability or explosive
limits
Flammability limit - lower (%)
Not available
Flammability limit- upper
Not available
M)
Explosive limit- lower M)
Not available
Explosive limit- upper M)
Not available
Vapor pressure
18 mm Hg
Vapor pressure temp
70 °F (21 °C)
Vapor density
< 1(Air= 1)
Relative density
114
Relative density temperature
70 °F (21 °C)
Solubility(ies)
Solubility (water)
100%
Partition coefficient
Not available
(n-octanol/water)
Auto -ignition temperature
Not available
Decomposition temperature
Not available
Viscosity
Not available
Viscosity temperature
70 °F (21 °C)
Other information
Explosive properties
Not explosive
Oxidizing properties
Not oxidizing
Percent volatile
0 (Estimated)
Pour point
28 °F (-2 °C)
Specific gravity
1 136
10. Stability and reactivity
Reactivity May be corrosive to metals
Material name HYPERSPERSE* MDC7041
Version number 10
Page 3 / 8

Chemical stability Material is stable under normal conditions
Possibility of hazardous reactions Hazardous polymerization does not occur
Conditions to avoid Contact with incompatible materials
Incompatible materials Strong oxidizing agents Metals
Hazardous decomposition No hazardous decomposition products are known
products
11. Toxicological information
Information on likely routes of exposure
Inhalation No adverse effects cue to inhalation are expected
Skin contact Prolonged or repeated contact may cause transient irritation
Eye contact Direct contact with eyes may cause temporary irritation
Ingestion Expected to be a low ingestion hazard
Symptoms related to the physical, Direct contact with eyes may cause temporary irritation
chemical and toxicological
characteristics
Information on toxicological effects
Acute toxicity
Product
Species
Test Results
HYPERSPERSE MDC7041 (CAS Mixture)
Acute
Dermal
LD50
Rabbit
> 5000 mg/kg, (Calculated according to GHS
additivity formula)
Inhalation
LC50
Rat
> 5 mg/I, 4 Hour, (Calculated according to
GHS additivity formula)
Oral
LD50
Rat
> 5000 mg/kg, (Calculated according to GHS
additivity formula)
* Estimates for product may be based on additional component data not shown
Skin corrosion/irritation Prolonged skin contact may cause temporary irritation
Serious eye damage/eye irritation Direct contact with eyes may cause temporary irritation
Respiratory or skin sensitization
Respiratory sensitization This product is not expected to cause respiratory sensitization
Skin sensitization This product is not expected to cause skin sensitization
Germ cell mutagenicity No data available to indicate product or any components present at greater than 01% are mutagenic or
genotoxic
Carcinogenicity This product is not considered to be a carcinogen by IARC, ACGIH, NTP, or OSHA
IARC Monographs. Overall Evaluation of Carcinogenicity
Not listed
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
Not regulated
US National Toxicology Program (NTP) Report on Carcinogens
Not listed
Reproductive toxicity This product is not expected to cause reproductive or developmental effects
Specific target organ toxicity - Not classified
single exposure
Specific target organ toxicity - Not classified
repeated exposure
Aspiration hazard Based on available data, the classification criteria are not met
Material name HYPERSPERSE* MDC7041 Page 4 / 8
Version number 10

t e
12. Ecological information
Ecotoxicity
Product
HYPERSPERSE MDC7041 (CAS Mixture)
LC50
Aquatic
Crustacea
Fish
Bioaccumulative potential
Mobility in soil
Other adverse effects
Persistence and degradability
- COD (mgO2/g)
- TOC (mg C/g)
13. Disposal considerations
Disposal instructions
Local disposal regulations
Hazardous waste code
Waste from residues / unused
products
Contaminated packaging
14. Transport information
XN11111111
LC50
NOEL
LC50
NOEL
Species
Test Results
Fathead Minnow 7040 mg/I, Static Renewal Bioassay, 96
hour, (pH adjusted)
Fathead Minnow 5000 mg/I, Static Renewal Bioassay, 96
hour, (pH adjusted)
Daphnia magna
3535 mg/I, Static Renewal Bioassay, 48
UN number
hour, (pH adjusted)
Daphnia magna
2500 mg/I, Static Renewal Bioassay, 48
Transport hazard class(es)
hour, (pH adjusted)
Rainbow Trout
6830 2 mg/I, Static Renewal Bioassay, 96
Subsidiary risk
hour, (pH adjusted)
Rainbow Trout
5000 mg/I, Static Renewal Bioassay, 96
Special precautions for user
hour, (pH adjusted)
No data available
Not available
Not biodegradable
65 (calculated data)
22 (calculated data)
Collect and reclaim or dispose in sealed containers at licensed waste disposal site Dispose of
contents/container in accordance with local/regional/national/international regulations
Dispose in accordance with all applicable regulations
The waste code should be assigned in discussion between the user, the producer and the waste disposal
company
Dispose of in accordance with local regulations Empty containers or liners may retain some product
residues This material and its container must be disposed of in a safe manner (see Disposal
instructions)
Since emptied containers may retain product residue, follow label warnings even after container is
emptied Empty containers should be taken to an approved waste handling site for recycling or disposal
DOT
UN number
UN3267
UN proper shipping name
Corrosive liquid, basic, organic, n o s (Phosphonic Acid, [Nitrilotris(Methylene)]Tris, Sodium Salt)
Transport hazard class(es)
Class
8
Subsidiary risk
-
Packing group
III
Special precautions for user
Read safety instructions, SDS and emergency procedures before handling
ERG number
153
Some containers may be exempt
from Dangerous Goods/Hazmat Transport Regulations, please check BOL for exact container
classification
IATA
UN number
UN3267
UN proper shipping name
Corrosive liquid, basic, organic, n o s (Phosphonic Acid, [Nitrilotris(Methylene)]Tris, Sodium Salt)
Transport hazard class(es)
Class
8
Subsidiary risk
-
Packing group
III
Environmental hazards
No
Material name HYPERSPERSE* MDC7041 Page 5 / 8
Version number 10

ERG Code
Special precautions for user
IMDG
UN number
UN proper shipping name
Transport hazard class(es)
Class
Subsidiary risk
Packing group
Environmental hazards
Marine pollutant
EmS
Special precautions for user
DOT
IATA, IMDG
15. Regulatory information
US federal regulations
153
Read safety instructions, SDS and emergency procedures before handling
UN3267
CORROSIVE LIQUID, BASIC, ORGANIC, N 0 S (Phosphonic Acid, [N itri lotris(M ethyl ene)]Tris, Sodium Salt)
No
F -A, S -B
Read safety instructions, SDS and emergency procedures before handling
This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29
CFR 1910 1200
TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)
Not regulated
CERCLA Hazardous Substance List (40 CFR 302.4)
Not listed
SARA 304 Emergency release notification
Not regulated
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050)
Not regulated
Superfund Amendments and Reauthorization Act of 1986 (SARA)
Hazard categories Immediate Hazard - No
Delayed Hazard - No
Fire Hazard - No
Pressure Hazard - No
Reactivity Hazard - No
SARA 302 Extremely hazardous substance
Not listed
SARA 311/312 Hazardous Yes
chemical
SARA 313 (TRI reporting)
Not regulated
Material name HYPERSPERSE* MDC7041 Page 6 / 8
Version number 10

It
Other federal regulations
Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPS) List
Not regulated
Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68 130)
Not regulated
Safe Drinking Water Act Not regulated
(SDWA)
Inventory status
Country(s) or region Inventory name On inventory (yes/no)*
Canada Domestic Substances List (DSL) Yes
Canada Non -Domestic Substances List (NDSL) No
United States & Puerto Rico Toxic Substances Control Act (TSCA) Inventory Yes
*A "Yes" indicates that all components of this product comply with the inventory requirements administered by the governing country(s)
A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing
country(s)
US state regulations
US - California Proposition 65 - CRT Listed date/Carcinogenic substance
No ingredient listed
US - California Proposition 65 - CRT. Listed date/Developmental toxin
No ingredient listed
US - California Proposition 65 - CRT Listed date/Female reproductive toxin
No ingredient listed
US - California Proposition 65 - CRT Listed date/Male reproductive toxin
No ingredient listed
US - Massachusetts RTK - Substance List
Not regulated
US - Pennsylvania RTK - Hazardous Substances
Not regulated
US - Rhode Island RTK
Not regulated
US California Proposition 65
Not Listed
16. Other information, including date of preparation or last revision
Issue date
Feb -11-2016
Revision date
Jun -28-2017
Version #
10
List of abbreviations
IATA International Air Transport Association
IMDG International Maritime Dangerous Goods Code
CAS Chemical Abstract Service Registration Number
TSRN indicates a Trade Secret Registry Number is used in place of the CAS number
ACGIH American Conference of Governmental Industrial Hygienists
TWA Time Weighted Average
STEL Short Term Exposure Limit
LD50 Lethal Dose, 50%
LC50 Lethal Concentration, 50%
NOEL No Observed Effect Level
COD Chemical Oxygen Demand
BOD Biochemical Oxygen Demand
TOC Total Organic Carbon
References
No data available
Disclaimer
The information provided in this Safety Data Sheet is correct to the best of our knowledge, information
and belief at the date of its publication The information given is designed only as a guidance for safe
handling, use, processing, storage, transportation, disposal and release and is not to be considered a
warranty or quality specification The information relates only to the specific material designated and
may not be valid for such material used in combination with any other materials or in any process,
unless specified in the text
Material name HYPERSPERSE* MDC7041 Page 7 / 8
Version number 10

Revision information Exposure controls/personal protection Respiratory protection
Regulatory information California Prop 65
HazReg Data North America
GHS Classification
Prepared by This SDS has been prepared by GE Water & Process Technologies Regulatory Department
(1-215-355-3300)
* Trademark of General Electric Company May be registered in one or more countries
Material name HYPERSPERSE* MDC7041 Page 8 / 8
Version number 10