NCS000580_Aquatic tox approval email_20240411

Young, Brianna A
From: Nicholson, Molly
Sent: Thursday, April 11, 2024 3:21 PM
To: Dishmon, Joyce Martin
Cc: Moore, Cindy;Young, Brianna A; Hall, Michael
Subject: NCS000580 Mayo Steam Electric Power Plant - Hydrex 6601 Approval
Attachments: Hydrex 6601 Approval.pdf
Good afternoon,
Please see the attached approval for Mayo Steam Electric Power Plant(NCS000580) use of Hydrex 6601 at the noted
dosage rate of< 10.0 mg/I.This product is also being added to the NC DWR List of Approved PAMS/Flocculants. Please
let me know if you have any questions.
Best,
Molly Nicholson
Environmental Specialist II -Compliance and Enforcement
Aquatic Toxicology Branch
N.C. Division of Water Resources-Water Sciences Section
N.C. Department of Environmental Quality
Please note that my phone number has changed:
919-743-8424 Office
[e-mail]
1621 Mail Service Center, Raleigh, NC 27699-1623
Submit AT Forms electronically to:[e-mail]
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
1

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
FtNc STATE aFA'
e.173 O
ROY COOPER
Governor
ELIZABETH S.BISERnlz.�� a2
Secretary *ftt QUAM W
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
April 11, 2024
To: Joyce Dishmon,Duke Energy
(via email: [e-mail])
Subject: NC DWR—Veolia: "Hydrex 6601"
Mayo Steam Electric Power Plant
NCS000580
The Aquatic Toxicology Branch,with the Division of Water Resources,has reviewed the SDS sheet,
specifically Section 12,provided for the use of the product"Hydrex 6601"as a flocculant at Mayo Steam
Electric Power Plant(see attachments). This review has been done per the DWR Guidance for Use of
Polyacrylamides,DWR PAM Guidance(htlps://deq.nc.gov/media/3310/download).
Surface Water Application Approval for Use:
Our review of the provided documents predicts the use of this product, at the stated dosage rate of
<10.0 mg/1 will not cause toxic impacts to aquatic life in the receiving stream. This approval relates
specifically to the application of this product to the surface waters of the State of NC,under best
management practices.
This assessment has been evaluated as a single use product. IF products are planned to be utilized
conjointly or interchangeably, it could classify this as a more complex use as an additive to the waste
stream. IF this is the case,then the ATB would recommend the use of a Full Range Ceriodaphnia dubia
Chronic Toxicity Test for documentation of potential toxic effects.
If you have any questions or concerns,please contact me at cindy.a.moorekdeq.nc.goy(919-743-8422)
or Molly Nicholson at molly.nicholsonkdeq.nc.gov(919-743-8424).
Sincerely,
DocuSigned by:
Clln.� �1.bbVY,
iric`1�y 11�°oore;2Supervisor
Aquatic Toxicology Branch
Division of Water Resources,NCDEQ
Attachments: SDS Sheet
Cc: Brianna Young(via email: [e-mail])
Michael Hall,RRO(via email: [e-mail])
ATB Electronic File&Laserfiche
North Carolina Department of Environmental Quality Division of Water Resources I Bio Lab
4401 Reedy Creek Road 1 1621 Mail Service Center Raleigh,North Carolina 27699-1621
NORTH CAROL INAD 919.743.8400
Department of Emlmnmenfal Duali�

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
SAFETY DATA SHEET
QVEOLIA
Product identifier Hydrex 6601
Other means of identification None.
Recommended use Wastewater Treatment
Recommended restrictions PROFESSIONAL USE ONLY
Manufacturer/Importer/Supplier/Distributor information
Manufacturer
Supplier Veolia Water Technologies, Inc
Address 913 Industrial Park Drive
Vandalia, Ohio
45377
Contact Person Hydrex Product Manager
Telephone [phone]
Fax [phone]
e-mail [e-mail]
Global Emergency [phone] (Code: 333239)
Contact
• •
Physical hazards Not classified.
Health hazards Not classified.
Environmental hazards Not classified.
OSHA defined hazards Not classified.
Label elements
Hazard symbol None.
Signal word None.
Hazard statement The mixture does not meet the criteria for classification.
Precautionary statement
Prevention Avoid forming spray/aerosol mists. Observe good industrial hygiene practices.
Response Wash hands after handling.
Storage Store in cool place. Protect from sunlight. Store away from incompatible materials.
Disposal Dispose of waste and residues in accordance with local authority requirements. Dispose of
contents/container to an appropriate treatment and disposal facility in accordance with applicable
laws and regulations, and product characteristics at time of disposal.
Hazard(s) not otherwise None known.
classified (HNOC)
Supplemental information None.
r 3. Composition/information on ingredients
Mixtures
Chemical name Common name and synonyms CAS number 0/0
Distillates, (petroleum), 64742-47-8 20 -40
Hydrotreated Light
Fatty alcohol alkoxylate Mixture 2.5 - 10
Other components below reportable levels 60 - 80
*Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret.
rIMM- •
Inhalation Move to fresh air. Call a physician if symptoms develop or persist.
Skin contact Wash off with soap and water. Get medical attention if irritation develops and persists.
Eye contact Rinse with water. Get medical attention if irritation develops and persists.
Material name: Hydrex 6601
2568 Version#: 01 Issue date: 05-29-2015 Q VEOIIA 1/ 6
SDS US

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
Ingestion Rinse mouth. Do not induce vomiting without advice from poison control center. If vomiting occurs,
keep head low so that stomach content doesn't get into the lungs.
Most important Diarrhea. Headache. Nausea, vomiting. Irritation of eyes and mucous membranes. Irritation of nose
symptoms/effects,acute and and throat. Skin irritation.
delayed
Indication of immediate Treat symptomatically.
medical attention and special
treatment needed
General information Ensure that medical personnel are aware of the material(s) involved, and take precautions to
protect themselves.
Suitable extinguishing media Alcohol resistant foam. Water fog. Dry chemical powder. Dry chemicals. Carbon dioxide (CO2).
Unsuitable extinguishing Not available.
media
Specific hazards arising from Material can be slippery when wet. During fire, gases hazardous to health may be formed.
the chemical
Special protective equipment Self-contained breathing apparatus and full protective clothing must be worn in case of fire.
and precautions for
firefighters
Fire fighting Cool containers exposed to heat with water spray and remove container, if no risk is involved.
equipment/instructions
Specific methods Use standard firefighting procedures and consider the hazards of other involved materials.
General fire hazards No unusual fire or explosion hazards noted.
•r. '
Personal precautions, Keep unnecessary personnel away. For personal protection, see section 8 of the SDS. Slippery
protective equipment and when wet.
emergency procedures
Methods and materials for This product is miscible in water.
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 in vermiculite, dry sand or earth and place into containers. Following product
recovery, flush area with water.
Small Spills: Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to
remove residual contamination.
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.
Precautions for safe handling Avoid forming spray/aerosol mists. Material can be slippery when wet. Avoid prolonged or repeated
contact with skin. Avoid prolonged exposure. Use only in well-ventilated areas.
Conditions for safe storage, Keep away from heat and sources of ignition. Store in original tightly closed container. Store away
including any from incompatible materials (see Section 10 of the SDS).
incompatibilities
8. Exposure controls/persona I protection L
EL IN
Occupational exposure limits
US. NIOSH: Pocket Guide to Chemical Hazards
Components Type Value
Distillates, (petroleum), TWA 100 mg/m3
Hydrotreated Light(CAS
64742-47-8)
Biological limit values No biological exposure limits noted for the ingredient(s).
Appropriate engineering Not available.
controls
Individual protection measures,such as personal protective equipment
Eye/face protection Wear safety glasses with side shields (or goggles)and a face shield. Chemical goggles and face
shield are recommended.
Skin protection
Hand protection Chemical resistant gloves.
Material name: Hydrex 6601
2568 Version#: 01 Issue date: 05-29-2015 Q VEOLIA 2/ 6
SDS US

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
Other Chemical resistant gloves.
Respiratory protection In case of insufficient ventilation, wear suitable respiratory equipment. Avoid forming spray/aerosol
mists.
Thermal hazards Not available.
O Q
General hygiene Always observe good personal hygiene measures, such as washing after handling the material and
considerations before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to
remove contaminants.
Appearance Viscous
Physical state Liquid.
Form Liquid.
Color Milky
Odor Aliphatic.
pH Not available.
Melting point/freezing point Not applicable. / < 41 OF(< 5 °C)
Initial boiling point and Not available.
boiling range
Flash point Not applicable.
Evaporation rate Not available.
Flammability(solid,gas) Not available.
Upper/lower flammability or explosive limits
Flammability limit- lower Not available.
(%)
Flammability limit- Not available.
upper(%)
Explosive limit- lower Not available.
(%)
Explosive limit- upper Not available.
(%)
Vapor pressure 2.3 kPa @ 20°C
Vapor density Not available.
Solubility(ies)
Solubility(water) Not available.
Partition coefficient Not available.
(n-octanol/water)
Auto-ignition temperature Not available.
Decomposition temperature Not available.
Viscosity 1200 cP
Other information
Density 1.05 g/cm3
pH in aqueous solution 5 - 8
Specific gravity 1 - 1.1
,10. Stability and reactivit Er
Reactivity The product is stable and non-reactive under normal conditions of use, storage and transport
Chemical stability Material is stable under normal conditions.
Possibility of hazardous Not available.
reactions
Conditions to avoid Contact with incompatible materials. None under normal conditions.
Incompatible materials Strong oxidizing agents. Oxidizing agents.
Hazardous decomposition No dangerous reaction known under conditions of normal use. At thermal decomposition
products temperatures, carbon monoxide and carbon dioxide and Hydrogen chloride. Nitrogen oxides (NOx).
Material name: Hydrex 6601
2568 Version#: 01 Issue date: 05-29-2015 Q VEOLIA 3/ 6
SDS US

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
• • • • • •
Information on likely routes of exposure
Inhalation Prolonged inhalation may be harmful.
Skin contact No adverse effects due to skin contact are expected.
Eye contact Direct contact with eyes may cause temporary irritation.
Ingestion Expected to be a low ingestion hazard.
Symptoms related to the Diarrhea. Headache. Nausea,vomiting. Irritation of eyes and mucous membranes. Irritation of
physical,chemical and nose and throat. Skin irritation.
toxicological characteristics
Information on toxicological effects
Acute toxicity
Product Species Test Results
Hydrex 6601
Acute
Inhalation
LC50 Rat 19804 mg/m3, 4 hours estimated
Oral
AT_LD50 Rat 10000 mg/kg estimated
LD50 Rat > 5000 mg/kg
* 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 Direct contact with eyes may cause temporary irritation.
irritation
Respiratory or skin sensitization
Respiratory sensitization Not a respiratory sensitizer.
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 0.1% are
mutagenic or genotoxic.
Carcinogenicity This product is not considered to be a carcinogen by IARC, ACGIH, NTP, or OSHA.
US. OSHA Specifically Regulated Substances(29 CFR 1910.1001-1050)
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 Not an aspiration hazard.
Chronic effects Prolonged inhalation may be harmful.
Further information This product has no known adverse effect on human health.
Ecological • •
me al
Ecotoxicity The product is not classified as environmentally hazardous. However,this does not exclude the
possibility that large or frequent spills can have a harmful or damaging effect on the environment.
Product Species Test Results
Hydrex 6601 DWR uses a 1:10 ratio for data that would give results in EC50(acute)
Aquatic versus a NOEGIC25 chronic effect.ATB will approve use at<10.0 mg/l.
Algae IC50 Algae > 100 mg/I, 72 hours
Crustacea LC50 Daphnia > 100 mg/I, 48 hours
Fish LC50 Danio (Danio) > 100 mg/I, 96 hours
* Estimates for product may be based on additional component data not shown.
Persistence and degradability This material is readily biodegraded and is not likely to bioconcentrate
Bioaccumulative potential
Mobility in soil No data available.
Material name: Hydrex 6601
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SDS US

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation
potential, endocrine disruption, global warming potential) are expected from this component.
Disposal
Disposal instructions Collect and reclaim or dispose in sealed containers at licensed waste disposal site.
Local disposal regulations Dispose in accordance with all applicable regulations.
Hazardous waste code The waste code should be assigned in discussion between the user,the producer and the waste
disposal company.
Waste from residues/ Dispose of in accordance with local regulations. Empty containers or liners may retain some product
unused products residues. This material and its container must be disposed of in a safe manner(see: Disposal
instructions).
Contaminated packaging Empty containers should be taken to an approved waste handling site for recycling or disposal.
Since emptied containers may retain product residue, follow label warnings even after container is
emptied.
DOT
Not regulated as dangerous goods.
IATA
Not regulated as dangerous goods.
IMDG
Not regulated as dangerous goods.
Transport in bulk according to Not established.
Annex II of MARPOL 73/78
and the IBC Code
• •Ti i F i il Lei
US federal regulations All components are on the U.S. EPA TSCA Inventory List.
This product is not known to be a "Hazardous Chemical" as defined by the OSHA Hazarc
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.
US. OSHA Specifically Regulated Substances(29 CFR 1910.1001-1050)
Not listed.
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 No
Hazardous chemical
SARA 313 (TRI reporting)
Not regulated.
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)
US state regulations WARNING: This product contains a chemical known to the State of California to cause cancer:
Residual acrylamide.
US. California Controlled Substances. CA Department of Justice(California Health and Safety Code Section
11100)
Not listed.
Material name: Hydrex 6601
2568 Version#: 01 Issue date: 05-29-2015 Q VEOLIA 5/ 6
SDS US

DocuSign Envelope ID:2B498AC3-4C73-4880-AA65-19FAFA569ACA
US. Massachusetts RTK-Substance List
Distillates, (petroleum), Hydrotreated Light(CAS 64742-47-8)
US. New Jersey Worker and Community Right-to-Know Act
Distillates, (petroleum), Hydrotreated Light(CAS 64742-47-8)
US. Pennsylvania Worker and Community Right-to-Know Law
Distillates, (petroleum), Hydrotreated Light(CAS 64742-47-8)
US. Rhode Island RTK
Not regulated.
US. California Proposition 65
WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other
reproductive harm.
International Inventories
Country(s)or region Inventory name On inventory(yes/no)*
Australia Australian Inventory of Chemical Substances(AICS) Yes
Canada Domestic Substances List(DSL) Yes
Canada Non-Domestic Substances List(NDSL) No
China Inventory of Existing Chemical Substances in China (IECSC) Yes
Europe European Inventory of Existing Commercial Chemical Substances No
(EINECS)
Europe European List of Notified Chemical Substances(ELINCS) No
Japan Inventory of Existing and New Chemical Substances(ENCS) No
Korea Existing Chemicals List(ECL) Yes
New Zealand New Zealand Inventory Yes
Philippines Philippine Inventory of Chemicals and Chemical Substances Yes
(PICCS)
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).
Issue date 05-29-2015
Version # 01
NFPA ratings Health: 0
Flammability: 1
Instability: 0
NFPA ratings
4 0
Disclaimer Veolia Water Technologies is not able to anticipate all conditions under which this information and
its product, or the products of other manufacturers in combination with its product, may be used.
It is the user's responsibility to ensure safe conditions for handling, storage and disposal of the
product, and to assume liability for loss, injury, damage or expense due to improper use and or non
respect of Veolia Water Technologies'requirement.
Revision Information Product and Company Identification: Product Review
Physical &Chemical Properties: Multiple Properties
Ecological Information: Ecotoxicity
Material Attributes&Uses; Experimental Data: Experimental Datz
Material name: Hydrex 6601
2568 Version#: 01 Issue date: 05-29-2015 Q VEOIIA 6/ 6
SDS US