UNITED STATES ENVIRONMENTAL PROTECTION AGENCYWASHINGTON, DC 20460

OFFICE OF CHEMICAL SAFETYAND POLLUTION PREVENTION

May 23. 2012

Wayne PenickDPC Industries, Inc.P.O. Box 24600Houston, TX 77229

Subject: Dixichlor Max-MPEPA Registration Number: 813-17Letter Date: March 19, 2012EPA Receipt Date: March 26, 2012

Dear Mr. Penick:

The label amendment, submitted in connection with registration under section of the federalInsecticide, Fungicide, and Rodenticide Act (FIFRA), as amended, is acceptable.

Proposed label amendment:

» Update Storage & Disposal statements as per PR Notice 2007-4.

General Comments:

A stamped accepted copy of the label is enclosed for your record. This amendment and acopy of this letter have been placed in this product's file for future reference. Should youhave any questions or comments concerning this letter, please contact Eliza Blah" via email atblair.eliza(qlej}a.eov or by telephone at (703) 308-7279.

Sincerely,

£e>rMonisha HarrisProduct Manager (32)Regulatory Management Branch IIAntimicrobials Division (751 OP)

Pfr^,

S/£ VUnder the ':eders! Msfirtiodr '•'•nrpde. and]Bodenticide, Aci as arns'.&a ior thepesticide, reEPA Reg. No.

DIXICHLOR MAX - MP

BLEACHManufacturing Use

FIRST AIDIF SWALLOWED:

IF IN EYES:

IF ON SKINOR CLOTHING

• Call poison control center or doctor immediately for treatmentor advice.

• Have person sip a glass of water if able to swallow.• Do not induce vomiting unless told to do so by the poisoncontrol center or doctor.

• Do not give anything by mouth to an unconscious person.• Hold eye open and rinse slowly and gently with water for 15-20 minutes.

• Remove contact lenses, if present, after the first 5 minutes,then continue rinsing the eye.

• Call a poison control center or doctor for treatment advice.• Take off contaminated clothing.• Rinse skin immediately with plenty of water for 15-20 minutes.• Call a poison control center or doctor for treatment advice.

Have a product container or label with you when calling a poison controlcenter or doctor going for treatment.

NOTE TO PHYSICIAN:Probable mucosal damage may contraindicate the use of gastric lavage.

ACTIVE INGREDIENT: % BY WT.SODIUM HYPOCHLORITE 12.5%Other Ingredients 87.5%TOTAL 100%Available Chlorine: 12.0%

EPAREG. NO. 813-17EPAEST. NO. 813-CO-001

See container for actual producing establishment

NET CONTENTS:

aaaaBULK

15 GALLONS30 GALLONS50 GALLONS54 GALLONS300 GALLONS

GALLONS

Manufactured by

DPC INDUSTRIES, INC.1919 Jacintoport Blvd. Houston, TX 77015

(281)457-4888FOR 24 HOUR EMERGENCY INFORMATION CALL CHEMTREC: 1(800) 424-9300

PRECAUTIONARY STATEMENTS

HAZARDS TO HUMANS AND DOMESTIC ANIMALS

UANo t ix: Corrosive. May cause severe skin irritation or chemical burns to broken skin. Causes eye damage. Wear safety glasses or goggles and rubbergloves when handling this product. Wash after handling. Avoid breathing vapors. Vacate poorly ventilated areas as soon as possible. Do not return until odors havedissipated.

ENVIRONMENTAL HAZARDS:This product is toxic to fish and aquatic organisms. Do not discharge into lakes, streams, ponds, estuaries, oceans, or public waters unless in accordance with therequirements of the National Pollutant Discharge Elimination Systems (NPDES) permit and the Permitting Authority has been notified in writing prior to discharge.Do not discharge effluent containing this product to sewer systems without previously notifying the sewage treatment plant authority. For guidance, contact yourState Water Board or Regional Office of the EPA.

PHYSICAL AND CHEMICAL HAZARDS:STRONG OXIDIZER: Flush drains before and after use. Do not mix with other household chemicals, such as toilet bowl cleaners, rust removers, acid or ammoniacontaining products. To do so will release hazardous gasses. Prolonged contact with metal may cause pitting or discoloration.

STORAGE AND DISPOSALDo not contaminate water, food or feed by storage and disposal.

PESTICIDE STORAGE: Store this product in a cool dry area, away from direct sunlight and heat to avoid deterioration. In case of spill, isolate container (ifpossible) flood area with large quantities of water. Products or rinsates that cannot be used should be diluted with water before disposal in a sanitary sewer.Emergency Handling: In case of contamination or decomposition, do not reseal container. Isolate in open, well-ventilated area. Flood with large volume ofwater. Cool unopened containers in the vicinity of water spray.PESTICIDE DISPOSAL: Pesticide wastes may be hazardous. Improper disposal of excess pesticide, spray mixture, or rinsate is a violation of Federal Law. Ifthese wastes cannot be disposed of by use according to label instructions, contact your State Pesticide or Environmental Control Agency, or the HazardousWaste Representative at the EPA Regional Office for guidance.CONTAINER HANDLING AND DISPOSAL[For rigid non-refillable container greater than 5 gallons]Container Handling: Non-refillable rigid container. Do not re-use or refill this container. Triple rinse as follows. Empty the remaining contents intoapplication equipment or a mix tank. Fill the container full with water. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring atleast one complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth several times. Turn the container over onto its other endand tip it back and forth several times. Empty the rinsate into application equipment or a mix tank or store rinsate for later use or disposal. Repeat this proceduretwo more times. Then offer for recycling or reconditioning, or puncture and dispose of in trash or in a sanitary landfill, or incineration, or, if allowed by state andlocal authorities, by burning. If burned, stay out of smoke[For Refillable Container]Container Handling Refillable Container. Refill this container with this product only. Do not reuse this container for any other purpose. Cleaning the containerbefore final disposal is the responsibility of the person disposing of the container. Cleaning before refilling is the responsibility of the refiller. To clean thecontainer before final disposal, empty the remaining contents from the container into application equipment or mix tank. Fill the container about 10 percent fullwith water. Agitate vigorously or recirculate water with a pump for 2 minutes. Pour or pump rinsate into application equipment or rinsate collection system. JRepeat this rinsing procedure two more times before final disposal of the container or recycling if available. r^

MANUFACTURING USE ONLY

FOR MANUFACTURING USE ONLY IN THE FORMULATION OF END-USE PRODUCTS INTENDED AS:• Disinfection of potable drinking water (emergency / public / individual), swimming pool water, Hubbard / immersion tank water, spas / hot tub, hydrotherapy

pools• Algaecide for use in cooling towers or evaporative condensers• Sanitization of dialysis machines• Sanitization of porous or nonporous food contact surfaces• Sanitization of porous or nonporous non-food contact surfaces• Sewage and wastewater effluent treatment• Sanitizers for commercial and household laundry• Agents to help control microorganisms on eggs for human consumption• Agents to help control algae and bacteria in fish and lobster ponds and conditioning oysters• Agents to help control algae on boat bottoms• Agents to kill scavenger fish in fish hatchery ponds• Emergency disinfection after droughts, fires, floods, water main breaks• Zebra Mussel control agent• Sanitization agent for dinnerware and utensils• Sanitization agent for oilfield applications

This product may be used to formulate products for specific use(s) not listed on the MP label if the formulator, user group, or grower has complied withU. S. EPA data submission requirements regarding support of such use(s).

FORMULATORS AND REPACKAGERS OF THIS PRODUCT MUST OBTAIN THEIR OWN REGISTRATION FROM THE ENVIRONMENTAL PROTECTIONAGENCY

HYPOCHLORITE CORROSIVESOLUTION MATERIAL

UN 1791