SAFETY DATA SHEET / MATERIAL SAFETY DATA SHEET Date of Preparation: March 19, Section 1: IDENTIFICATION. Produced Salt Water

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1 Product Name: Synonyms: Product Use: Restrictions on Use: Manufacturer/Supplier: Section 1: IDENTIFICATION Salt water; Produced water; Formation water. Waste water stream from gas and oil processing plants. Husky Oil Operations Ltd. PO Box 6525 Station 'D' Calgary, Alberta T2P 3G7 Phone Number: Emergency Phone: Date of Preparation of SDS: March 19, 2015 GHS INFORMATION Section 2: HAZARD(S) IDENTIFICATION Classification: Not hazardous according to OSHA criteria (29 CFR ). LABEL ELEMENTS Hazard None. Pictogram(s): Signal Word: Hazard Statements: None. Precautionary Statements Prevention: Response: Storage: Disposal: Hazards Not Otherwise Classified: Ingredients with Unknown Toxicity: 5% of this product mixture consists of ingredient(s) of unknown acute toxicity. This material is considered hazardous by the OSHA Hazard Communication Standard, (29 CFR ). Page 1 of 9

2 Section 3: COMPOSITION / INFORMATION ON INGREDIENTS Ingredient(s) Common name / CAS No. % wt./wt. Synonyms Water Sodium chloride (NaCl) Sodium chloride Calcium chloride Magnesium chloride Iron < 0.1 Potassium hydroxide (K(OH)) Potassium hydroxide < 0.1 Benzene < 0.1 Inhalation: Eye Contact: Skin Contact: Ingestion: General Advice: Note to Physicians: Section 4: FIRST-AID MEASURES If inhaled: Call a poison center or doctor if you feel unwell. Acute and delayed symptoms and effects: May cause respiratory irritation. Signs/symptoms may include cough, sneezing, nasal discharge, headache, hoarseness, and nose and throat pain. If in eyes: Rinse cautiously with water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Acute and delayed symptoms and effects: May cause eye irritation. Signs/symptoms may include redness, swelling, pain, tearing, and blurred or hazy vision. If on skin: Wash with plenty of soap and water. Call a poison center or doctor if you feel unwell. Acute and delayed symptoms and effects: May cause skin irritation. Signs/symptoms may include localized redness, swelling, and itching. If swallowed: Call a poison center or doctor if you feel unwell. If vomiting occurs naturally, have victim lean forward to reduce the risk of aspiration. Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Acute and delayed symptoms and effects: May cause gastrointestinal irritation. Signs/symptoms may include abdominal pain, stomach upset, nausea, vomiting and diarrhea. In case of accident or if you feel unwell, seek medical advice immediately (show the label or SDS where possible). Symptoms may not appear immediately. Section 5: FIRE-FIGHTING MEASURES FLAMMABILITY AND EXPLOSION INFORMATION Not flammable or combustible by OSHA/WHMIS criteria. At elevated temperatures or in headspaces of vessels this product may release combustible levels of flammable gases or vapours. These gases can accumulate in confined or poorly ventilated areas. Ensure no sources of ignition are present when working in any confined space containing this product. Page 2 of 9

3 Sensitivity to Mechanical Impact: Sensitivity to Static Discharge: MEANS OF EXTINCTION Suitable Extinguishing Media: Unsuitable Extinguishing Media: Products of Combustion: Protection of Firefighters: Emergency Procedures: Personal Precautions: Environmental Precautions: Methods for Containment: Methods for Clean-Up: Other Information: This material is not sensitive to mechanical impact. This material is not sensitive to static discharge. Use appropriate extinguishing media for surrounding fire. Oxides of carbon. Oxides of iron. Sodium oxide. Chlorine. Runoff from fire control or dilution water may cause pollution. Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing will only provide limited protection. Section 6: ACCIDENTAL RELEASE MEASURES Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Use personal protection recommended in Section 8. Keep out of drains, sewers, ditches, and waterways. Stop leak if without risk. Do not flush to sewer or allow to enter waterways. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. See Section 13 for disposal considerations. Section 7: HANDLING AND STORAGE Handling: Do not swallow. Wash thoroughly after handling. See Section 8 for information on Personal Protective Equipment. Storage: Store away from incompatible materials. See Section 10 for information on Incompatible Materials. Keep out of the reach of children. Exposure Guidelines Component Section 8: EXPOSURE CONTROLS / PERSONAL PROTECTION Water [CAS No ] Sodium chloride [CAS No ] Page 3 of 9

4 Calcium chloride [CAS No ] Magnesium chloride [CAS No ] Iron [CAS No ] Potassium hydroxide [CAS No ] ACGIH: 2 mg/m³ (C); (1992) OSHA: 2 mg/m³ (C) [Vacated]; Benzene [CAS No ] ACGIH: 0.5 ppm (TWA); 2.5 ppm (STEL); Skin; A1; BEI (1996) OSHA: 1 ppm (TWA); 5 ppm (STEL); PEL: Permissible Exposure Limit TLV: Threshold Limit Value TWA: Time-Weighted Average STEL: Short-Term Exposure Limit C: Ceiling Engineering Controls: PERSONAL PROTECTIVE EQUIPMENT (PPE) Use ventilation adequate to keep exposures (airborne levels of dust, fume, vapour, gas, etc.) below recommended exposure limits. Eye/Face Protection: Hand Protection: Skin and Body Protection: Respiratory Protection: Wear safety glasses. Ensure that eyewash stations are close to the workstation location. Use equipment for eye protection that meets the standards referenced by CSA Standard CAN/CSA-Z and OSHA regulations in 29 CFR for Personal Protective Equipment. Wear protective gloves. Consult manufacturer specifications for further information. Wear protective clothing. If engineering controls and ventilation are not sufficient to control exposure to below the allowable limits then an appropriate NIOSH/MSHA approved air-purifying respirator that meets the requirements of CSA Standard CAN/CSA- Z , or self-contained breathing apparatus must be Page 4 of 9

5 General Hygiene Considerations: Appearance: Colour: Odour: Odour Threshold: Physical State: used. Supplied air breathing apparatus must be used when oxygen concentrations are low or if airborne concentrations exceed the limits of the air-purifying respirators. Handle according to established industrial hygiene and safety practices. Consult a competent industrial hygienist to determine hazard potential and/or the PPE manufacturers to ensure adequate protection. Section 9: PHYSICAL AND CHEMICAL PROPERTIES Dirty/hazy liquid. Colourless. Mild hydrocarbon. Liquid. ph: 6.34 Melting Point / Freezing Point: Initial Boiling Point: Boiling Range: Flash Point: Evaporation Rate: Flammability (solid, gas): Lower Flammability Limit: Upper Flammability Limit: Vapor Pressure: Vapor Density: 0 C (32 F) (Water) 100 C (212 F) (Water) 16 mmhg at 20 C (68 F) Relative Density: 1 (Water = 1) Solubilities: Partition Coefficient: n- Octanol/Water: Auto-ignition Temperature: Decomposition Temperature: Viscosity: Percent Volatile, wt. %: VOC content, wt. %: Soluble in water. Page 5 of 9

6 Density: Coefficient of Water/Oil Distribution: Reactivity: Chemical Stability: Possibility of Hazardous Reactions: Conditions to Avoid: Incompatible Materials: Section 10: STABILITY AND REACTIVITY Contact with incompatible materials. Sources of ignition. Exposure to heat. Stable under normal storage conditions. None known. Hazardous Decomposition Products: EFFECTS OF ACUTE EXPOSURE Product Toxicity Oral: Dermal: Inhalation: Contact with incompatible materials. Sources of ignition. Exposure to heat. Strong acids. Strong oxidizers. Section 11: TOXICOLOGICAL INFORMATION Component Toxicity Component CAS No. LD50 oral LD50 dermal LC50 Water > 90 ml/kg (rat) Sodium chloride mg/kg (rat) > mg/kg (rabbit) > mg/m³ (rat); 1H Calcium chloride Magnesium mg/kg (rat) chloride Iron mg/kg (rat) Potassium mg/kg (rat) hydroxide Benzene mg/kg (rat) > 9400 µl/kg (rabbit) ppm (rat); 7H Likely Routes of Exposure: Target Organs: Eye contact. Skin contact. Inhalation. Ingestion. Skin absorption. Skin. Eyes. Gastrointestinal tract. Respiratory system. Page 6 of 9

7 Symptoms (including delayed and immediate effects) Inhalation: May cause respiratory irritation. Signs/symptoms may include cough, sneezing, nasal discharge, headache, hoarseness, and nose and throat pain. Eye: Skin: Ingestion: May cause eye irritation. Signs/symptoms may include redness, swelling, pain, tearing, and blurred or hazy vision. May cause skin irritation. Signs/symptoms may include localized redness, swelling, and itching. May cause gastrointestinal irritation. Signs/symptoms may include abdominal pain, stomach upset, nausea, vomiting and diarrhea. Skin Sensitization: Respiratory Sensitization: Medical Conditions Aggravated By Exposure: EFFECTS OF CHRONIC EXPOSURE (from short and long-term exposure) Target Organs: Skin. Eyes. Gastrointestinal tract. Respiratory system. Lungs. Blood. Cardiovascular system. Bone marrow. Liver. Chronic Effects: Carcinogenicity: Prolonged or repeated contact may dry skin and cause irritation. Long term inhalation of Benzene vapours can result in bone marrow abnormalities with damage to blood forming tissues and may cause anemia and other blood cell abnormalities. Immunodepressive effects have also been reported. Long-term inhalation exposure to Iron has resulted in siderosis (mottling of the lungs). This is considered a benign pneumoconiosis and does not ordinarily cause significant physiological impairment. Ingestion of greater than 50 to 100 mg of Iron per day may result in pathological iron deposition in body tissues. Repeated iron ingestion can produce cardiac toxicity. Product is not classified as a carcinogen. See Component Carcinogenicity table below for information on individual components. Chronic exposure to benzene has been associated with an increased incidence of leukemia and multiple myeloma (tumour composed of cells of the type normally found in the bone marrow). Component Carcinogenicity Component ACGIH IARC NTP OSHA Prop 65 Benzene A1 Group 1 List 1 OSHA Carcinogen. Listed. Mutagenicity: Reproductive Effects: Developmental Effects Teratogenicity: Embryotoxicity: Toxicologically Synergistic Materials: Benzene has caused adverse fetal effects in laboratory animals. Page 7 of 9

8 Ecotoxicity: Persistence / Degradability: Bioaccumulation / Accumulation: Mobility in Environment: Other Adverse Effects: Disposal Instructions: Section 12: ECOLOGICAL INFORMATION U.S. Department of Transportation (DOT) Proper Shipping Name: Not regulated. Class: UN Number: Packing Group: Label Code: Section 13: DISPOSAL CONSIDERATIONS Disposal should be in accordance with applicable regional, national and local laws and regulations. Local regulations may be more stringent than regional or national requirements. Section 14: TRANSPORT INFORMATION Canada Transportation of Dangerous Goods (TDG) Proper Shipping Name: Not regulated. Class: UN Number: Packing Group: Label Code: Federal Regulations Section 15: REGULATORY INFORMATION Canada This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all the information required by the Controlled Products Regulations. WHMIS Classification: Hazard Symbols: Class D2B - Eye irritant. United States This SDS has been prepared to meet the U.S. OSHA Hazard Communication Standard, 29 CFR Page 8 of 9

9 SARA Title III Component Section 302 (EHS) TPQ (lbs.) Section 304 EHS RQ (lbs.) CERCLA RQ (lbs.) Section 313 RCRA CODE CAA 112( r ) TQ (lbs.) Potassium hydroxide Not listed. Not listed Not listed. Not listed. Not listed. Benzene Not listed. Not listed U019 Not listed. State Regulations Massachusetts US Massachusetts Commonwealth's Right-to-Know Law (Appendix A to 105 Code of Massachusetts Regulations Section ) Component CAS No. RTK List Potassium hydroxide Listed. Benzene E Note: E = Extraordinarily Hazardous Substance New Jersey US New Jersey Worker and Community Right-to-Know Act (New Jersey Statute Annotated Section 34:5A-5) Component CAS No. RTK List Potassium hydroxide SHHS Benzene SHHS Note: SHHS = Special Health Hazard Substance Pennsylvania US Pennsylvania Worker and Community Right-to-Know Law (34 Pa. Code Chap ) Component CAS No. RTK List Potassium hydroxide E Benzene ES Note: E = Environmental Hazard; S = Special Hazardous Substance California California Prop 65: Component Benzene WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Type of Toxicity cancer; developmental, male Section 16: OTHER INFORMATION Disclaimer: The information contained in this document applies to this specific material as supplied. It may not be valid for this material if it is used in combination with any other materials. It is the user s responsibility to satisfy oneself as to the suitability and completeness of this information for their own particular use. Date of Preparation of SDS: March 19, 2015 SDS Expiry Date (Canada): March 18, 2018 Version: 2.0 GHS SDS Prepared by: Phone: (403) Page 9 of 9