Modified Asphalt - 212 - Valero

Canada. Quebec OELs. (Ministry of Labor - Regulation Respecting the Quality of the Work Environment)ComponentsCalcium oxide (CAS1305-78-8)Hydrogen sulfide (CAS7783-06-4)Vaccum tower bottoms(CAS 64741-56-6)Mexico. Occupational Exposure Limit ValuesComponentsAsphalt (CAS 8052-42-4)Calcium oxide (CAS1305-78-8)Hydrogen sulfide (CAS7783-06-4)Vaccum tower bottoms(CAS 64741-56-6)Engineering controlsPersonal protective equipmentEye / face protectionSkin protectionRespiratory protectionGeneral hygieneconsiderations9. Physical & Chemical PropertiesTypeTWASTELValue2 mg/m321 mg/m3Form15 ppmTWA14 mg/m310 ppmTWA 5 mg/m3 Fume.TypeValueFormSTEL 10 mg/m3 Fume.TWA 5 mg/m3 Fume.TWA2 mg/m3STEL21 mg/m315 ppmTWA14 mg/m310 ppmSTEL 10 mg/m3 Fume.TWA 5 mg/m3 Fume.Provide adequate general and local exhaust ventilation. Use process enclosures, local exhaustventilation, or other engineering controls to control airborne levels below recommended exposurelimits.Wear safety glasses. If splash potential exists, wear full face shield or chemical goggles.Wear chemical-resistant, impervious gloves. Flame retardant protective clothing is recommended.Wear a NIOSH-approved (or equivalent) respirator as needed.Consult supervisor for special handling instructions. Avoid contact with eyes. Avoid contact withskin. Keep away from food and drink. Wash hands before breaks and immediately after handlingthe product. Provide eyewash station and safety shower. Handle in accordance with goodindustrial hygiene and safety practice.Appearance Dark brown to black liquid at normal use temperatures above 300F. Semi-solid at 70F.Physical stateFormColorOdorOdor thresholdpHLiquid.Semi-Solid at 70FBrown/black.Strong petroleum.Not available.Not available.Vapor pressure < 0.01 kPa @ 20 °CVapor density > 1.6 (Air = 1)Boiling pointMelting point/Freezing pointSolubility (water)Specific gravityFlash pointFlammability limits in air,upper, % by volumeFlammability limits in air,lower, % by volumeModified Asphalt903302Prepared by 3E Company700 - 1100.1 °F (371.1 - 593.4 °C)> 135 °F (> 57.2 °C)Not available.1 - 1.2 (Water=1)> 350.1 °F (> 176.7 °C) Closed Cup< 7> 0.9Version #: 03Revison date: 01-10-2013 Print date: 01-10-2013CPH MSDS NA5 / 10

12. Ecological InformationEcotoxicological dataComponentsHydrogen sulfide (CAS 7783-06-4)AquaticFishSulphur (CAS 7704-34-9)AquaticFishLC50LC50SpeciesLake whitefish (Coregonus clupeaformis)Western mosquitofish (Gambusia affinis)Test Results0.002 mg/l, 96 hours> 10000 mg/l, 96 hoursEcotoxicityPersistence and degradabilityBioaccumulation /Accumulation13. Disposal ConsiderationsDisposal instructions14. Transport InformationNot expected to be harmful to aquatic organisms.Not available.Not available.Dispose in accordance with all applicable regulations.DOTBasic shipping requirements:UN numberUN3257Proper shipping name Elevated temperature liquid, n.o.s. (Asphalt)Hazard class9Packing groupIIISpecial precautions Not regulated by DOT if at room temperature and in containers of 119 gallons or less.Additional information:Special provisionsIB1, T3, TP3, TP29Packaging exceptions NonePackaging non bulk NonePackaging bulk173, 247IATAUN numberUN3257UN proper shipping name Elevated temperature liquid, n.o.s. (Asphalt)Transport hazard class(es) 9ERG code9LIMDGUN numberUN3257UN proper shipping name Elevated temperature liquid, n.o.s. (Asphalt)Transport hazard class(es) 9Packing groupIIIEnvironmental hazardsMarine pollutant No.EmSF-A, S-P*TDGProper shipping name ELEVATED TEMPERATURE LIQUID, N.O.S. (ASPHALT)Hazard class9UN numberUN3257Packing groupIII15. Regulatory InformationUS federal regulationsTSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)Not regulated.Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) ListPolycyclic Aromatic Hydrocarbons (CAS 130498-29-2)US EPCRA (SARA Title III) Section 302 - Extremely Hazardous Spill: Reportable quantityModified Asphalt903302Hydrogen sulfide (CAS 7783-06-4)Prepared by 3E CompanyVersion #: 03100 LBSRevison date: 01-10-2013 Print date: 01-10-2013CPH MSDS NA7 / 10

US EPCRA (SARA Title III) Section 302 - Extremely Hazardous Substance: Threshold Planning QuantityHydrogen sulfide (CAS 7783-06-4)500 LBSUS EPCRA (SARA Title III) Section 313 - Toxic Chemical: De minimis concentrationPolycyclic Aromatic Hydrocarbons (CAS 130498-29-2) 0.1 % N590 Substance is not eligible for the de minimis exemptionexcept for the purposes of supplier notification requirements.US EPCRA (SARA Title III) Section 313 - Toxic Chemical: Reportable thresholdPolycyclic Aromatic Hydrocarbons (CAS 130498-29-2) 100 LBS N590US EPCRA (SARA Title III) Section 313 - Toxic Chemical: Listed substancePolycyclic Aromatic Hydrocarbons (CAS 130498-29-2)CERCLA (Superfund) reportable quantity (lbs) (40 CFR 302.4)Asphalt: 100Hydrogen sulfide: 100Superfund Amendments and Reauthorization Act of 1986 (SARA)Hazard categoriesSection 302 extremelyhazardous substance (40CFR 355, Appendix A)Section 311/312 (40 CFR370)Drug EnforcementAdministration (DEA) (21 CFR1308.11-15)WHMIS statusWHMIS classificationWHMIS labelingImmediate Hazard - YesDelayed Hazard - YesFire Hazard - NoPressure Hazard - NoReactivity Hazard - NoNoNoNot controlledControlledN590 Listed.D2A - Other Toxic Effects-VERY TOXICD2B - Other Toxic Effects-TOXICInventory statusCountry(s) or region Inventory name On inventory (yes/no)*AustraliaAustralian Inventory of Chemical Substances (AICS)NoCanadaCanadaChinaEuropeEuropeJapanKoreaNew ZealandPhilippinesUnited States & Puerto RicoDomestic Substances List (DSL)Non-Domestic Substances List (NDSL)Inventory of Existing Chemical Substances in China (IECSC)European Inventory of Existing Commercial ChemicalSubstances (EINECS)European List of Notified Chemical Substances (ELINCS)Inventory of Existing and New Chemical Substances (ENCS)Existing Chemicals List (ECL)New Zealand InventoryPhilippine Inventory of Chemicals and Chemical Substances(PICCS)*A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s)State regulationsToxic Substances Control Act (TSCA) InventoryUS - California Hazardous Substances (Director's): Listed substanceAsphalt (CAS 8052-42-4)Calcium oxide (CAS 1305-78-8)Hydrogen sulfide (CAS 7783-06-4)Listed.Listed.Listed.YesNoNoNoNoNoNoNoNoYesModified Asphalt903302Prepared by 3E CompanyVersion #: 03Revison date: 01-10-2013 Print date: 01-10-2013CPH MSDS NA8 / 10

Polycyclic Aromatic Hydrocarbons (CAS 130498-29-2) Listed.Sulphur (CAS 7704-34-9)Listed.Vaccum tower bottoms (CAS 64741-56-6)Listed.US - California Proposition 65 - Carcinogens & Reproductive Toxicity (CRT): Listed substanceAsphalt (CAS 8052-42-4)Listed.Bis(2-ethylhexyl) phthalate (CAS 117-81-7)Listed.US - California Proposition 65 - CRT: Listed date/Carcinogenic substanceAsphalt (CAS 8052-42-4)Listed: January 1, 1990 Carcinogenic.Bis(2-ethylhexyl) phthalate (CAS 117-81-7)Listed: January 1, 1988 Carcinogenic.Vaccum tower bottoms (CAS 64741-56-6)Listed: January 1, 1990 Carcinogenic.US - California Proposition 65 - CRT: Listed date/Developmental toxinBis(2-ethylhexyl) phthalate (CAS 117-81-7)Listed: October 24, 2003 Developmental toxin.US - California Proposition 65 - CRT: Listed date/Male reproductive toxinBis(2-ethylhexyl) phthalate (CAS 117-81-7)US - New Jersey RTK - Substances: Listed substanceAsphalt (CAS 8052-42-4)Listed.Calcium oxide (CAS 1305-78-8)Listed.Hydrogen sulfide (CAS 7783-06-4)Listed.Polycyclic Aromatic Hydrocarbons (CAS 130498-29-2) Listed.Sulphur (CAS 7704-34-9)Listed.Vaccum tower bottoms (CAS 64741-56-6)Listed.US - Pennsylvania RTK - Hazardous Substances: Special hazardAsphalt (CAS 8052-42-4)Vaccum tower bottoms (CAS 64741-56-6)US. Massachusetts RTK - Substance ListAsphalt (CAS 8052-42-4)Listed.Calcium oxide (CAS 1305-78-8)Listed.Hydrogen sulfide (CAS 7783-06-4)Listed.Sulphur (CAS 7704-34-9)Listed.Vaccum tower bottoms (CAS 64741-56-6)Listed.US. New Jersey Worker and Community Right-to-Know ActHydrogen sulfide (CAS 7783-06-4)Polycyclic Aromatic Hydrocarbons (CAS 130498-29-2)US. Pennsylvania RTK - Hazardous SubstancesAsphalt (CAS 8052-42-4)Calcium oxide (CAS 1305-78-8)Hydrogen sulfide (CAS 7783-06-4)Polycyclic Aromatic Hydrocarbons (CAS 130498-29-2)Sulphur (CAS 7704-34-9)Vaccum tower bottoms (CAS 64741-56-6)16. Other InformationOther informationHMIS® ratings Health: 2*Flammability: 1Physical hazard: 1NFPA ratings Health: 2Flammability: 1Instability: 1Listed: October 24, 2003 Male reproductive toxin.Special hazard.Special hazard.500 LBS500 LBSListed.Listed.Listed.Listed.Listed.Listed.Note: This Material Safety Data Sheet applies to the listed products and synonym descriptions forHazard Communication purposes only. Technical Specifications vary greatly depending on theproducts and are not reflected in this document. Consult specification sheets for technicalinformation.Modified Asphalt903302Prepared by 3E CompanyVersion #: 03Revison date: 01-10-2013 Print date: 01-10-2013CPH MSDS NA9 / 10

DisclaimerThis Material Safety Data Sheet (MSDS) was prepared in accordance with 29 CFR 1910.1200 byValero Marketing & Supply Co., ("VALERO"). VALERO does not assume any liability arising out ofproduct use by others. The information, recommendations, and suggestions presented in thisMSDS are based upon test results and data believed to be reliable. The end user of the producthas the responsibility for evaluating the adequacy of the data under the conditions of use,determining the safety, toxicity and suitability of the product under these conditions, and obtainingadditional or clarifying information where uncertainty exists. No guarantee expressed or implied ismade as to the effects of such use , the results to be obtained, or the safety and toxicity of theproduct in any specific application. Furthermore, the information herein is not represented asabsolutely complete, since it is not practicable to provide all the scientific and study information inthe format of this document, plus additional information may be necessary under exceptionalconditions of use, or because of applicable laws or government regulations.Modified Asphalt903302Prepared by 3E CompanyVersion #: 03Revison date: 01-10-2013 Print date: 01-10-2013CPH MSDS NA10 / 10