Leak Location Services, Inc. — Hazardous Materials Safety Interpretation

Page 1• • of Transportation U.S. Department 400 Seventh St., S.W. Special Programs Research and FEB 5 2004 Washington, D.C. 20590 Administration Mr. Daren L. Laine President Ref. No.: 03-0277 Leak Location Services, Inc. 16124 University Oak San Antonia, TX 78249 Dear Mr. Laine: • This responds to your letter dated October 30, 2003, regarding the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180), as they apply to Copper sulfate pentahydrate shipped on passenger-carrying airlines. Subsequently, you sent a letter dated November 5, 2003, to clarify your previous request for interpretation. You stated that your company transports small quantities (less than 5 lbs.) of Copper sulfate pentahydrate crystals (cupric sulfate, copper sulfate, etc.) in checked baggage on passenger- carrying aircraft. The Copper sulfate pentahydrate is packaged in a 16-ounce wide-mouth plastic bottle with a screw top and labeled "Copper Sulfate (CuSO, 5H,O) RQ=10 Ibs". The labeled plastic bottle is placed inside a larger PVC container with sealed ends. The double container is then placed inside a suitcase or fiberglass equipment case with other equipment. Your questions are paraphrased and answered as follows: Q1. Is this material (CuSO, 5H,O) regulated in either form as a hazardous material for purposes of transportation under the HMR? Al. Cupric sulfate is listed in the §172.101, List of Hazardous Substances, Table 1, Appendix A, with a reportable quantity (RO) of 10 Ibs. Therefore, the material would be regulated as a hazardous substance, as defined in § 171.8, if the quantity of Cupric sulfate, in one package, equals or exceeds the RQ, and must be packaged and shipped as cargo as specified in the HMR. Since your company is shipping less than 5 lbs. per package, the Cupric sulfate does not meet the definition of a hazardous substance, and provided your product does not meet the definition of any other hazard class, it would not be subject to the HMR and not regulated for purposes of transportation. Q2. The description in section 14 of the enclosed MSDS is "RQ, Environmentally hazardous substances, solid, n.o.s., (Cupric sulfate)." Does the information shown mean we cannot ship this material, and how do we complete Section 14 to continue to ship our product?#

Page 2A2. If the material is a hazardous substance, it would be described as "RO, Environmentally hazardous substances, solid, n.o.s., (Cupric sulfate), 9, UN3077, IT'and must be shipped in non-bulk packaging in accordance with § 173.213. A MSDS may be used to satisfy the emergency response information requirements specified in $172.602 of the HMIR. However, the information on a MSDS is required by the Department of Labor's Occupational Safety and Health Administration (OSHA), not the U.S. Department of Transportation. Q3. Do we have to declare this material prior to flight, and can it be shipped without special handling. A3. If the material is not a hazardous substance, and thus not a hazardous material, it would not be subject to the HMR, and would not require special handling. Although, it appears that your product may not be regulated, the issue of whether an airline may deny your shipment is not under our purview. Each airline determines what is allowed on its aircraft. Also, air carrier hazmat screening is conducted to comply with the Transportation Security Agency's (TSA) security rules. You may wish to contact the TSA to make sure your material is not considered a security risk. • I hope this information is helpful, If we can be of further assistance, please contact us. Sincerely, Dasa Dist Susan Gorsky Senior Transportation Regulations Specialist Office of Hazardous Materials Standards#

Page 318/38/2883 16:61 210-408-1242 LEAK LOCATION SUS PAGE 01/09 LEAK LOCATION SERVICES, INC. 16124 UNIVERSITY OAK • SAN ANTONIO, TEXAS 78249 • (210) 408-1241 / FÁX (210) 408-1242 . October 30, 2003 Mr. Edward Mazzullo Engrum Director of The Office of Hazardous Materials Safety Washington, D.C §112.101 AppA Hazardous Substance Fax: (202) 366-3012 03-0277 Subject: Transportation of Copper Sulfate Pentabydrate as Checked Airline Baggage Dear Mr. Mazzullo: I talked today with Mr. Michael Stephens of your office regarding the DOT regulations for shipping copper sulfate pentahydrate (CuSO, 5Hl, O) on passenger airlines. As was discussed with Mr. Stephens our company transports on a regular basis as checked airline baggage the following: • Copper sulfate crystals (Cupric sulfate); Quantity shipped is less than 5 Ibs; Packaged in a plastic container and labeled; • We also use an overpack type containex for the plastic container; An MSDS data sheet accompanies the baggage; This double package is placed in an equipment suitcase. The airlines have recentiy stated that this material is a hazardous substance and must be transported as such. We have also been questioned by TSA personnel. However, as we understand the regulations, this material is not regulated or considered a hazardous material as long as we are transporting less than 10 Ibs. Therefore, we are transporting this material ia an appropriate manner. We request that The Office of Hazardous Materials Safety provide us with the proper guidance for transporting copper sulfate pentabydrate, cupric sulfate, copper sulfate, eic. This matorial is availablo ia crystal and powder forma from various suppliers. Specifically we request a letter answering the following questions: Is this material (CuSO, 5H, O) in either for regulated per DOT?; Is this material a hazardous material for shipping purposes?; Does the airline have cause for denying our shipment per the regulations? How do we respond to Section 14 of the attached ZEP MSDS? Does Section 14 mean we can not ship the material as we have in the past? • Do we have to declare this material prior to our flight?; and • Can this material be shipped as described without special bandling?; www.leaklocationservices.com/results@leaklocationservices.com#

Page 410/30/2003 16:01 210-408-1242 LEAK LOCATION SUS PAGE 02/09 DOT-OHMIS LLSI October 30, 2003 Page 2 of2 We thank you in advance for your prompt response to our questions. If you have questions about the this request, please contact the undersigned at (210) 408-1241. Very truly yours, Dawnsta Daren L. Laine President enclosure: MSDS - ZEP Root Kill II MSDS - Tennessee Brand Copper Sulfate cc: John Andrews - SWA Safety Manager - (214) 792-6201 leaklocationservices.com results@leaklocationservices.com#

Page 510/30/2803 16:01 218-408-1242 LEAK LOCATION SVS PAGE 83/09 • iT Matana Safety or hones AMANDING AROUN ORMATOR ENFORCER Products, Inc. P.O. Box 1060 Section 1. Chemical Product and Company Identification Cartersville, GA 30120 1-888-805-HELP Product name Root Kill IT Product Code ZDCR-2C Formula No. Not available, Dato of Issue 05/02/02 Version 1.0 Emergency talophone For MSDS Information: number Compliance Services, 104352 1680 INFOTRAC, 877 SAI 2016 (Calls Recorded) Fore Medical Emergency: Toll Free or a Transportation Emergency: Toll Fre HEMTREC, 800 424 9300 (Calls Recordo Prepared by 1420 Scaboard Industrial Bivd. Acuity Specialty Products Group Atlanta, GA 30318 Section 2. Composition, Information on Ingredients Name of Hazardous inpredients CAS * 1 Me by Weight, Exposure Limite 1) Copper sulfate pontabydrato 7758-99-8 90-100 OSHA PEL Z2 (United States). TWA: 1 mg/m Form: Dusts and Mists Section 3. Hazards Identification Acute Effects Routes or kantry Agerbed through skin. Eye contact. Antalation. Skün Hazardous in case ofskin contact (imitant, scositizes). Skin inflammaliun is characierized by itching, Eyes Sereraly initating to the eyes. Eye expoure may cause reversible eye injury. HIMES Inhalasion Hazardous in case of inhalation. Inhalation of dust will produce irritation to the respiratory tract, scaling, reddening, or, occasionally, blistering. Prolonged exposure may result in skin bums. 3 Ingestion Toxic if swallowed. Ingestion may cause severe gastric disturbances, burning in throat, and circulatory characterized by buring, sneezing and coughing. failure. Chronic Blees The substance is toxic to kidneys and the nervous syrem. Repead or prolonged exposure Personal Protation Carcinogenic Effects Not availablo. to the substance can produce target organs damsge. E Sec Iox/cological Information (section 11) Section 4. First Aid Measures Ingestion Section 5. Fire Fighting Moesures Flammability Not applicable. Flash Point Not applicable. Flammable Limits Not applicable Fire Hazard Not applicable. Fire-Fighting Procedures Notapplicable. • Conned on Nax Page#

Page 610/30/2003 16:01 210-408-1242 LEAK LOCATION SVS PAGE 84/09 • Section 6. Accidental Refease Measures Spill Clean up Section 7. Handling and Storage Avoid contact with eyes, skin and clothing. Do not ingest. Wash thoroughly after handling. Keep corrainer dry and tightly closed. Keep container in a cool, wall-ventilated area. Store between 40°F and 120°F. Personal Protection Section 8. Exposure Controls, Personal Protection Splashi goggles. Protective Clothlog (Pictograms) Rcspiratory.. Wear appropriate respirator when ventilation is inadequate. Wear coveralls or long sleeved shir and long trousers. Section 9. Physical and Chomical Properties Physical State Solid. (Crystals.) Color Specific Gravity Bolling Point apor Pressur Odor Blue. Odoriess. They lie po alde 228 (Water = 1) Tapor Densics Not applicable. Not available. VOC (Consumer) Solubllity • 0 (s/). Easily soluble in cold water, hot waler. Evaporation Rate Not available. Section 10. Stability and Reactivily Stabllity aud Reactivity Incompatiblity Reactive with alkalis and phosphates. The product is stable. Hazardous Decomposition Products Not applicable. Hazardous Polymerization Notavailable. Section 11. Toxicological Information Toxicity tu Animals Chront Effeces on Humans Not available. ORAL (LDSO): Section 12. Ecological Information Ecotoxicity Biodegradable/OECD Not available, Not available. Section 13. Disposal Considerations Waste laformation Waste Stream Not aveilable. Waste must be disposed of in accordance with federal, state and local environmental control regulations. Consult your local or replonal authorides. Section 14. Transport Information Proper shipping name Rp-Hold Colly Dad BEN - 800-313-8439 ex 642/ IDG Classification TDG Class 9.2: Envizontentally hazardous material. Section 15. Regulatory Information U.S. Foderal Regulations SARA 313 roxic chemical notification and release reporting: Copper compounds Clean Water Act (CWA) 311: Copper sulfato pentabydrate Clean air act (CAA) 112 regulated toxic substances: No products were found. State Regulations Califomia prop. 65: No products were found. WHMUS (Canada) Gonated, on Next Rage#

Page 710/30/2003 16:01 210-408-1242 LEAK LOCATION SVS PAGE 05/09 ASTRO PRODUCT CODE # 25004 Griffin MATERIAL SAFETY DATA SHEET Page 1 of 5 Tennessee Brand Copper Sulfare (CUSO, 0M,0) DATE PREPARED: JUne 27, 1998 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION FRODUCT IDENTIFICATION Product Nama(s): Tennesser Brand Copper Sulfare Crystals Tennessee Brand Copper Sulfare Feed Grade Tennesses Brand Coppor Sulfate Instant Synonyms: Tennesses Brand Copper Sulfate Industrial Grade Crystals, Coppur Suttate Granular Crystals, Cappor Copper Sulfaté Lato Grystals, Copper Sulfate Medium Sulfate Snow Crystals, Copper Sulfare Supertine Crystals, Sultata Faud Gracie, Bluostone, Bhe Vitrial CoppEr Sufface Powdered instant Bluestono, Copper • HAZARD CLASSIFICATION (0-minimal, 1-sfignt, 2-modarara, 3-serioua, 4-gavare) NFPA: HEALTH-2 FIRE-O REACTIVITY-O MANUFACTURER Address: Company Name: Griftin Corporation 0 Box 1847, Rocky Ford Roa aldosta, GA 31603-184 HEMPREC mergency Phone d (800) 424 9300 (800) 237 1854 2. COMPOSITION/ INFORMATION ON INGREDIENTS Compar one a Paralydiate 7758-98-7 OSHA PEL An one dust or mis ere are proproar or not hazardous. HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Praduct is toxic orally but not dormally. It is a skin sensinizer and skin iricant it is corrosive to the eyes. POTENTIAL HEALTH EFFECTS Inhalation: Copper sulfare is a akin iritant and sensitizer including Eye Irritation: Skin Irritation: Skin iritant and sensitizer especially to some Individuals. Ingestion: Skin Absorption: Not toxic dermally. toxicity. Copper sulface may induce severe gastroenteric Moderately taxic in human orally. High intraparitones! and hemorrhagos). Prostration, anurla, hematuria, anemia, distress ivomiting, gastraanseria pain, and loaal corrosion increase in white blood cells, coma, respiratory aifficulties and circulatory failure. Chilin Caboration • PO B0X :947, Macky Ford Road, Valdosca, GA 31603-1847 • 18001 225-TE6a"#

Page 810/30/2003 16:01 210-408-1242 LEAK LOCATION SVS PAGE 86/89 ASTRO PRODUCT CODE # 25004 Griffin MATERIAL SAFETY DATA SHEET Tennessee Brand Copper Sulfare (CUSO, 5H,0) Page 2 of 5 DATE PREPARED: June 27, 1995 Chronic: umans which affects the metabolic and excretan opper sulfate is reported to havo systemic affects i functions of the liver and kidney. 4. FIRST AID MEASURES Inhalation: • respiration preferably mouth-to-mouth. Get medical Remove victim to fresh air. If not breathing, give artificial Eye Contact: attention immediataly. of chemical renalns (at Ieast 15 - 20 minutes). Get Hold eyelids open and flush with water, until no evidonce Skin Contect: Remove contaminated clothing and shoes. Wash with medical arrantion immodiazely. remain leproximately 1-20 minutes medical Ingestion: attention. Drink i to 2 glasses of water and induce vomiting by couching back of throat with finger. Do not induce vomiting or give anything by moush to an unconscious Nate to Physician: gastric lavage. Mexaure against circulatory shock, Probable mucosal damago may contraindicato sto use of person. Get medical attention. respiratary depresaion and convulsion may be noodod. 5. FIRE FIGHTING MEASURES - Flammable Limits: Flash Point & Method; Not applicable. Auroignition Temperature: Not applicable. Not applicadle. FIRE FIGHTING HAZARDS & PROCEDURES Ganeral Hazard: Extinguishing Mecia: Naglisible fire hazard when exposed to heat or flame. combustion. If storad with other combuatible products, use Capper sulfare done not bum, nor will it aupport Fire Fighting Instructions: water, CO, or dry chemical. Avoid contact with molton product to prevant serious Fire Fighting Egulament: burns. Wear protective clothing and soll-contained breathing Hazardous Cambustion apparatus. Producta: used, it will sclubilize the CuSO, -SH,O, and care shauld be If dry heated above 600°C, SO, is evolved, If water in taken ta keep such warer due of sinaams or other bodies of water. 6. ACCIDENTAL RELEASE MEASURES Weer prorective clothing. Sweep up and placa in an aporopriare chemical waste container for disposal. Orin conorason 70 Box 1729. Rocky Ford Rese. Valdria, at 31805-1867 - 18001 287-1456#

Page 910/30/2003 16:01 210-408-1242 LEAK LOCATION SVS PAGE 07/09 ASTRO PRODUCT CODE # 25004 Griffin MATERIAL SAFETY DATA SHEET Pega 3 of 5 Tennessee Brand Copper Sulfare iCuSO, "5H,0) DATE PREPARED: June 27, 1995 HANDLNG ANO STORAGE Storaçe Tamperature: Ganeral Information: Not available. reach of children. Store in a clean, dry area. Keep this material out of the EXPOSURE CONTROLS! PERSONAL PROTECTION PESTICIDE APPLICATOAS & WORKERS produst for Agricuitural Use Requirementa in accordance with the EPA Worker Proraction These workers must refer to the Product Label and Cirections For Uon attached to the MANUFACTURING. COMMERCIAL BLENDING, & PACKAGING WORKERS Standard 40 CFR part 170. Ventlation: Control enclosed spaces with adequate yantilation to mo/m". ravent exceedance of ACGIH TLV or OSHA PEL (1 Respiratory Protaction: In enclosed spacas where the TLV or PEL may be respirator. excorded, wear NIOSHIMSHA appraved dusz or mist Eve Protectior: Wear protective eyewear to prevant contact with this Protective Clothing: substance, shirt and long pants, waterproof gloves and shoes plus Applicarors and other handiers must wear long-steeved ocks. 9. PHYSICAL AND CHEMICAL PROPERTIES Vapor Density (Air- 1): Vapor Pressure: 7.3 mg Ha @ 25°C. Specifie Gravity: Not determined. in Busyd Acetate = 11: Evaporation Raro Solublicy in Water (% by wr.): 22.37 @ 0°C, 117.95 @ 100°C. Ner determined. pH (596 soln.): Meling Point: Boiling Point (760 mm Hg): -5 HO @ 150°C. Odor: No odor. 4H,0@110°C. Physical State: Color: Blue. Crystals or powder. 10. STABILITY AND REACTIVITY Incomparble Materials: General: This material is stablt under normal conditions. Nane known. Product is highly soluble in water, but does Condidone to Avoidi not react with the water. Hazardous Decomposition: Excessiva heat. None at normal process temperatures and pressures. It dry Hazardous Polymorization: Will not accur. heated above 1100°F 1600°C) 50, may be relaased. - Gritin Corporation a F0 Box 1547, Aocky Ford Road, Veidoria, GA 37603-7847+16007 25B5E#

Page 1010/30/2003 16:01 210-408-1242 LEAK LOCATION SVS PAGE 08/09 ASTRO PRODUCT CODE # 25004 Griftin MATERIAL SAFETY DATA SHEET Pape 4 of 5 Tennessee Brand Copper Sulfare (CuSO, 5H,01 DATE PREPARED: June 27, 1995 11. TOXICOLOGICAL INFORMATION ACUTE Inhalation: irritation of the mucous membranes. Acure intalation LEss > 1.48 mg/Lair. May cause Eye imitation: Skin Absorption: Skin Irritation: CHRONIC: Ingestion: Special Health Effacts: 12. ECOLOGICAL INFORMATION ECOTOXIITY (coppor sulfate pentatsydrare) Tast Type Speciat Value Bluegill 1.5 m97 Aquatic LOgo Aquatic ECo Rainbow Trout Daphnia magne 0.182 mg/L 0.17 miL 13. DISPOSAL CONSIDERATIONS regiscared transporters. Comply with appropriato disposal regulations, Landfit aolids at permitted stes. Use 14. TRANSPONT INFORMATION DOT (Departmert of Transportation) PROPER SHIPPING NAME: RO, Environmentally Hazardoua Subarances, Solid, HAZAFID CLASS: 9 N.O.S. (Cupric Sulfata Pentabydraca) 9, UN3077, 11! IDENTIFICATION NUMBER: RQ: 10 (bs. UN3077, Ill 15. REGULATORY INFORMATION TSCA; All product components are on the SCA Chemical CERCLA: Inventory. RQ - 10 Ibs. IThe Reportable Quantity for Cupila Sultase, FDA: • CAS 47758-98+7, according to 40CFR 302.4) This product is Genarally Racognized as Safe (GRAS) as i race mineral for Ilvestock when used in accordance with This product is Ganorally Rocoonizad as Safe (GRASI aS good management practices. when used in food wrap paper and paperboard products. Gillia Copardion Pox 1647, Rocky Ford Road, Vacoata, LA J803-1647 (300 235-155 •#

Page 1110/30/2003 16:01 210-408-1242 LEAK LOCATION SVS PAGE 09/09 ASTRO PRODUCT CODE # 25004 Griffin MATERIAL SAFETY DATA SHEET Page 5 of 5 Tennessee Brand Copper Sulfate (Cus0, 5H,0) DATE PREPARED: Juno 27, 1995 SARA TITLE I 313 Roportable Ingrediants: Ther d and Tier Il: Copper 25.2%. For R: 10,000 Ibs. Asportable. 16. OTHER INFORMATION REVISION SUMMARY • THE INFORMATION IN THIS MSDS RELATES TO THIS SPECIFIC MATERIAL. IT MAY NOT BE IN ANY PROCESS. IT IS THE USERS' RESPONSIBILITY TO SATISFY THEMSELVES AS TO VALID FOR THIS MATERIAL IF USED IN COMBINATION WITH ANY OTHER MATERIALS OR PARTICULAR USE. THE SUITABILITY AND COMPLETENESS OF THIS INFORMATION FOR THEIR OWN Gatin Carponson • PO Box 1977, Hocky Ford Hood, Valdosra GA 71603-1847 - 4001 2871255#

Page 1211/05/2003 17:49 210-408-1242 LEAK LOCATION SUS™ PAGE 01/06 LEAK LOCATION SERVICES, INC. 16124 UNIVERSITY OAK • SAN ANTONIO, TEXAS 78249 • (210) 408-1241 / FAX (210) 408-1242 November 5, 2003 Engrum $172.101 App.A Mr. Edward Mazzullo Hazardous Substance Director of The Office of Hazardous Materials Safety 03-0277 Washington, D.C Fax: (202) 366-3012 Subject: Transportation of Copper Sulfate Pentahydrate as Checked Airline Baggage Dear Mt. Mazzullo: I wist to clarify our letter of October 30, 2003. As stated, Leak Location Services, Tac. bas a requirement to transport small quantities (less than 5lbs) of copper sulfate pentalydrate (CuSO, 5H,O) in checked airline passenger baggage. Copper sulfate is a salt that is used for various applications including a dietary supplement for livestock, plant root remover for sewer lines, and as we use as an electrolyte when making electrical measurements. The copper sulfate pentahydrate is packed ia a 16-ouace wide-mouth plastic bottle with a screw top and labeled: Copper Sulfate (CuSO, • 5H,O) RQ = 10 Ibs. Causes irritation to eyes, skin and respiratory tract. Harmful or fatal if swallowed. The labeled plastic bottle is placed inside a larger PVC container with sealed ends. The double-container is then placed inside a suite case or fiberglass equipment case with orher equipment. The material is then shipped as passenger baggage when LLSI field personnel travel to a project site: The airline's concena is that this is a hazardous substance. In addition, the airline has stated that this is a "corrosive" material and if spilled would damage the aircraft. As we understand the regulations this material is not regulated or considered a hazardous material as long as we are transporting less than the reportable quantity of 10 Ibs. Also, the "corrosive" warning for this material is listed as a health warning and refers to a "corrosive" that is harpaful to the eyes, skin, and respiratory tract and not a "corrosive" for metal parts. www.leaklocationservices.com/results@leaklocationservices.com#

Page 1311/05/2003 17:49 210-408-1242 LEAK LOCATION SVS PAGE 02/06 DOT-OHMS LLSI November 5, 2003 Page 2 0f2 We filly understand and appreciate the airlines concern for passenger safety and the safety of their aircraut. We are also aware that the airlines wust follow aud comply with FAA regulations tor the transportung of hazardous materials. However, we do not believe the copper sulfate pentahydrate (CuSO,-5H,O) in the quantities we transport should be considered a hazardous material per DOT guidelines. Furthermore, we feel we are following OSHA and DOT regulations when we tratsport, store, aad handle this material and are transporting this material in a safe and responsible manner. Therefore, we request that The Office of Hazardous Materials Safety provide us with the proper DOT guidaace for transporting copper sulfate pentabydrate (CuSO,-SH,O) as checked baggage on passenger aircraft. We thank you in advance for your prompt response to our questions. It you have questions about the this request, please contact the undersigned at (210) 408-1241. Very truly yours, Dawn Saw Daren L. Laine President John Andrews - SWA Safety Manager - (214) 792-4086 attachment: C.J. Martin Company - MSDS for Copper Sulfate Pentahydrate leaklocationservices.com results@leaklocationservices.com#

Page 1411/05/2003 17:49 218-408-1242 LEAK LOCATION SUS PAGE 03/06 MATERIAL SAFETY DATA SHEET Revised: 02/16/99 SECTIONI - IDENTIFICATION OF PRODUCT MANUFACTURER'S NAME: 2739 PASADENA BLVD. C.J. MARTIN COMPANY PASADENA, TX 77502 PRODUCT NAME: MARTIN'S COPPER SULFATE CRYSTALS EMERGENCY TELEPHONE: (800) 424-9300 - CHEMTREC CHEMICAL NAME: Copper Sulfate Pentahydrate G.A.S. NAME: See Section VII CA.S. NUMBER: See Section VII CHEMICAL FORMULA: N/A MOLECULAR WEIGHT: N/A CHEMICAL FAMILY: NIA D.O.T. HAZARD CLASS: 9 (misc. hazardous materiale) D.O.T. SHIPPING NAME: ORM-D, Consumer Commodity SECTION II - PHYSICAL DATA ODOR: odorless MELTING POINT: 110 degrees Celsius APPEARANCE: transparent blue crystals PARTICLE SIZE: NIA LBS/GAL: NIA CLOUD PT: COLOR (G-H): NIA PERCENT VOLATILE: BOILING POINT: 150 deg. Celsius EVAPORATION RATE: NA VAPOR PRESSURE: N/A FLASH POINT: NIA VAPOR DENSITY: N/A SPECIFIC GRAVITY: N/A BULK DENSITY (FLUFFED): N/A BULK DENSITY (SETTLED): NIA REFRACTIVE INDEX: NA SOLUBILITY (OIL): NIA SOLUBILITY (WATER): 30 degrees Celsius 24.3 grams/100 grams at SECTION III - PHYSICAL HAZARDS STABILITY: Stable CONDITIONS TO AVDID: High heat, Reducing agents INCOMPATIBILITY (Materials to avoid): Contact with magnesium metal may generate dangerous levels of hydrogen gas. HAZARDOUS DECOMPOSITION PRODUCTS: A emperatureres Celsius sulfur dioxide may be evoived, none at normal process Page -1-#

Page 1511/05/2003 17:49 210-408-1242 LEAK LOCATION SVS PAGE 04/06 • MATERIAL SAFETY DATA SHEET HAZARDOUS POLMERIZATION: Will not accur. Page -2-#

Page 1611/05/2003 17:49 210-408-1242 LEAK LOCATION SVS PAGE 05/06 MATERIAL SAFETY DATA SHEET • SECTION IV - FIRE & EXPLOSION HAZARD DATA FLASH POINT (METHOD USED): NIA FLAMMABLE LIMIT (LOWER): N/A FLAMMABLE LIMIT (UPPER): N/A FIRE EXTINGUISHING MEDIA: Does not burn or support combustion. SPECIAL PROCEDURES: water. Avoid direct water stream on moltan material (splattering occurs). Use extinguisher media for surrounding fire, CO2, dry chemical o UNUSUAL FIRE/EXPLOSION HAZARDS: Heated above 110 degrees Celslus will melt and flow. Sealed containers may when dissolved in water, contact with magnesium metal may evolve hydroge upture when heated due to release of water from crystals. Materlal Is acldi gas. Anhydrous cupric sulfate formed on water loss (white color). Anhydrous degrees Celslus decomposes to cupric axide and sulfur dioxide. At temperatures greater than 600 SECTION V - HEALTH HAZARD RATA ACUTE: Corrosive: Harmful or fatal if swallowed Causes eye damage and irritation to the skin and mucous membranes. CHRONIC: Very rare, except In Individuals with Wilson's disease. SIGNS AND SYMPTOMS OF EXPOSURE: Locallzed skin discoloration, itching, eye irritation, ulceration of nasal septum may occur, repeated or prolonged skin contact may cause dermatitis. MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE: Wilson's disease (Retains and stores copper excessivaly). CHEMICAL LISTED AS CARCINOGEN: No SECTION VI - SPECIAL PROTECTION EYE PROTECTION: Chemical goggles in splash hazard areas. RESPIRATORY PROTECTION: NIOSH/MSHA approved respirator for toxic dusts. VENTILATION: Yes LOCAL EXHAUST: Yes PROTECTIVE GLOVES: Rubber OTHER PROTECTIVE EQUIPMENT: Eye wash station should be available in work areas. WORKHYGENIC PRACTICES: Observe good personal hygiene practices. Wash hands before eating. SECTION VII - HAZARDOUS COMPONENTS OF MIXTURES MATERIAL PERCENT Copper Sulfare Pentahydrate, CAS # 7758-99-8 99% Inent Ingredients: * Inert ingredients may contain: Cupric Sulfate (CuSO4) Blue Vitriol 1% Page -3-#

Page 1711/05/2003 17:49 210-408-1242 LEAK LOCATION SVS : PAGE 06/06 MATERIAL SAFETY DATA SHEET SECTION VII - EMERGENCY & FIRST AID PROCEDURES IF INGESTED: May be fatal if swallowed. Do not induca vomiting. Get medical attention. IF INHALED: Move to fresh air. Administer CPR if necessary. • IF ON SKIN: -lush with large amounts of water at least 15 minutes. Remove contaminated clothing. Get medica attention if iritation persists. IF IN EYES: atention trition pens alter for at least 15 minutes. Hold yolas open during fushing. Cet modical Treat most urgent symploms first cessation of breathing, eye injury, skin contact, shock, in all cases seek medical assistance. SECTION IX - SPILLAGE OR LEAKAGE PROCEDURES alts and dispose of In an approved landfill. Prevent accidental entry of solution into streams and other water bodie: weep up crystals, vacuum is preferred. If spilled solution is in a confined area, introduce lime or soda ash to form insoluble coppe SECTION X - WASTE: DISPOSAL METHODS Contact appropriate local, state and federal officials. SECTION XI - ADDITIONAL PRECAUTIONS Do not contaminate water, food, or feed by storage or disposal. Storage: Store in closed containers in a cool, dry, well ventilated place away from heat sources and reducing agents. Use good housekeeping practices to prevent dust accumulation. Contalner Disposal: Do not reuse container. Securely wrap original continer in several layers of newspaper and discard in trash. Envlronmental Hazards: This product is toxic to fish. Direct application of Copper Sulfate to water may cause a significant reduction in populations of aquatic invertebrates, plants and fish. Do not treat more than one-half of lake or pond a treatments for oxygen levels to recover. one time in order to avoid dapletion of oxygen from decaying vegetation. Allow 1 to 2 weeks betwear recommended on this label especially in soft or acid waters. However, fish toxicity generally decreases ure the a dose cat safe fish an. Pane Agency before applying this product to pubie waters. Permits may be required before treating such waters. SECTION XII - COMMENTS • • Page -4-#