### Record of Communication

Subject : Number of EPA Protocol Gas Production Sites On October 30, 2009, an EPA contractor responded to an inquiry from John Schakenbach of the Environmental Protection Agency (EPA) regarding the number of EPA Protocol gas production sites in the U.S. The EPA contractor conducted a survey to identify

specialty gas companies which produce gas standards (tri

-blends containing SO 2 

### , NO, and CO 2 

### ) that are prepared and certified according to EPA’s Traceability Protocol. Internet searches and review of previous EPA audit publications were performed to develop a list of specialty gas producers for consideration as audit candidates. Specialty g as companies and their production sites identified by a 2008 EPA study were also reviewed and served as a “baseline” list of producers. The survey identified 14 specialty

gas companies, some with several production sites each, which produce EPA Protocol gas standards

. There are other companies that only distribute Protocol gases. The specialty gas companies are : 1. Airgas a. Also known as Airgas Specialty Gases/Airgas National Welders/ Linde/BOC. b. Purchased AGA Gas, Inc. in Ohio. c. Claims to be the largest specialty gas network in the U.S. d. State they

manufacture EPA Protocols at six laboratories, but do not identify them. 2. Air Liquide America a. Purchased Scott Specialty Gases in 2007. b. Locations nationwide. 3. Liquide Technology

Corporation 4. Matheson Tri

- Gas 5. MESA Specialty

Gas & Equipment a. Gases blended b y MESA, then certified b y Scott- Marrin. 6. PraxAir a. Locations nationwide. 7. Red Ball Oxygen 8. Scott- Marrin 9. Spec Air Specialty Gas 10. Specialty

Air Technologies, Inc. a. “Small wholesale specialty gas company” in CA. 11. Specialty

Gases of America a. Member of the American Gas Group. 12. Spectra Gases, Inc. 13. Applied Gas, Inc. a. Contacted EPA ab out being included in the list of Protocol Gas producers. 14. GTS - Welco a. “A Praxair Venture” b. These could be gases produced b y Praxair. However, GTS states their EPA Protocol Gases are produced at their production facility in Morrisville, PA, which is not a faci lity listed by Praxair. EPA Protocol Gas Producers Production Locations / Sales Offices 

### Ai rgas Airgas National W elders 630 United Drive Durham, NC 27713

### EPA

Protocol Gas Producers Production Locations / Sales Offices (also known as Airgas/Linde/BOC and Airgas National W elders) Airgas Specialty Gases 6421 Monclova Rd Maum ee, OH 43537 419 - 893 - 7226 Airgas Southwest 21 W aterway Court Suite 550 The Wo odlands, TX 77380 832 - 585 - 0540 

### Ai rgas (cont.) Airgas NCN (Northern Calif. & Nevada) 6790 Florin Perkins Road Suite 300 Sacramento, CA 95828 916 - 379 - 1000 Airgas So uth 125 Townpark Drive, NW Suite 400 Kennesaw, GA 30144 770 - 590 - 6200 Airgas East 17 and 27 Northwestern Dr. Salem, NH 03079 800 - 562 - 3815 Airgas Mid America 2950 Industrial Drive Bowling Green, KY 42101 270 - 842 - 9489 Airgas North Central 1250 W. W as hington Street We st Chicago, IL 60185 630 - 231 - 9260 Airgas Great Lakes 6055 Rockside Wo ods Blvd. Independence, OH 44131 216 - 642 - 6600 

### Ai rgas (cont.) Airgas Mid South 31 N. Peoria Tulsa, OK 74120 918 - 582 - 0885 Airgas We st 4007 Paramount Blvd. Suite 100 Lakewood, CA 90712 562 - 497 - 1991 

### Ai r Liquide America 11426 W est Fairmont Pkwy La Porte, TX 77571 281 - 474 - 8419 

### Scott Specialty

Gases (is now Ai r Liquide America Specialty Gases LLC

– purchase completed in 2007) 500 W eaver Park Road Longm ont, CO 80501 30 3 - 442 - 4700 1290 Combermere Street Troy , MI 48083 248 - 589 - 2950 2330 Hamilton Blvd. South Plainfield, NJ 07080 908 - 754 - 7700

### EPA

Protocol Gas Producers Production Locations / Sales Offices 

### Scott Specialty

Gases (is now Ai r Liquide America Specialty Gases LLC

– purchase completed in 2007) Corporate Headquarters 614 1 Easton Road, Bldg 1 Plum steadville, PA 18949 215 - 766 - 7221 9810 Bay Area Boulevard Pasadena, TX 77507 218 - 474 - 5800 ADDITIONAL LOCATIONS – Ai r Liquide America Specialty Gases LLC 301 South 45 th Ave. Phoenix, AZ 85043 602 - 273 - 1328 700 Decoto Road Uni on City, CA 94587 510 - 429 - 4216 9857 Bachman Road Orlando, FL 32824 407 - 856 - 6932 1311 New Savannah Road Augusta, GA 30901 706 - 724 - 8721 27 Forestwood Court Unit A Romeoville, IL 60446 815 - 372 - 0204 18222 East Petroleum Drive Baton Rouge, LA 70809 225 - 754 - 0609 373 Southwest Cutoff Wo rcester, MA 01604 508 - 792 - 0437 326 Forestville Road Wa ke Forest, NC 27587 919 - 556 - 6461 ADDITIONAL LOCATIONS – Ai r Liquide America Specialty Gases LLC 2708 South Meridian Ave Ok lahom a City, OK 73108 405 - 681 - 0589 6529 NW Front Avenue Portland, Oregon 97210 503 - 224 - 4351 1001 Alvin W einberg Drive Oak Ridge, TN 37830 865 - 482 - 7046 1676 South 700 We st Salt Lake City, UT 84101 801 - 972 - 5893 

### Liquid Technology Corporation 2564 Pemberton Dr. Apopka, FL 32703 800 - 465 - 0405 

### Matheson Tri - Gas 1650 Enterprise Parkway Tw insburg, OH 44087 973 - 257 - 1100 

### MESA Specialty

Gas & Equipment 3619 W. Pendleton Ave Suite C Santa Ana, CA 92704 714 - 434 - 7102 

### PraxAir 145 Shimersville Road Bethlehem, PA 800 - PRAXAIR

### EPA

Protocol Gas Producers Production Locations / Sales Offices 5700 South Ala me da Street Los Angeles, CA 90058 800 - PRAXAIR Connecticut Wo rld Headquarters 39 Old Ridgebury Road Danbury, CT 06810 - 5113 203 - 837 - 2000 Georgia 900 W estpark Drive, Ste 100 Peachtree City, GA 30269 678 - 364 - 8080 Illinois 7000 High Grove Blvd. Burr Rid ge, IL 60527 - 7595 630 - 320 - 4000 Texas 222 Pennbright Dr., Ste 300 Houston, TX 77090 281 - 872 - 2100 

### Red Ball Oxygen 555 Fontenac St Shreveport, LA 71107 800 - 551 - 8150 

### Scott - Marrin, Inc. 6531 Box Springs Blvd. Riverside, CA 92507 951 - 653 - 6780 

### Spec Air Specialty

Gas 22 Albiston W ay

Auburn, ME 04210 207 - 777 - 6218 

### Specialty

A ir Technologies, Inc. 6544 1⁄2 Cherry Avenue Long Beach, CA 90805 562 - 984 - 7230 

### Specialty

Gases of Am erica 6055 Brent Drive Toledo, OH 43611 419 - 729 - 7732 

### Spectra Gases, Inc. 3434 Route 22 We st Branchburg, NJ 08876 800 - 932 - 0624 Accurate Gas Company (owned and operated by ARGO, Inc.) P.O. Box 608 Alexandria, AL 36250 256 - 820 - 8427 

### Ap plied Gas, Inc. Applied Gas, Inc. 13903 Highway 35 Danbury, TX 775 34 www.appliedgas.com 979 - 922 - 1804 Atlantic States Specialty Gases (ASG) PO Box 2519 We stfield, NJ 07090 908 - 654 - 7954 DeLille Specialty Gases 772 Marion Road Colum bus, OH 43207 877 - 935 - 3377 

### GTS -Welco ("A Praxair Venture) One Steel Road East Morrisville, PA 19067 800 - 942 - 1148

### EPA

Protocol Gas Producers Production Locations / Sales Offices NorLab Pacific NW Regional Representative

– Norco, Inc. Corporate Office 1125 W. Am ity Boise, ID 83705 www.norco - inc.com 800 - 657 - 6672 South Atlantic Regional Representative

– JDF Associates Corporate Office 1061 Cambridge Square Suite A Alpharetta, GA 30004 www.jdfassoc.com 770 - 751 - 9267 Spec Gas, Inc. 86 Vincent Circle Ivyland, PA 18974 215 - 355 - 24053rd Party Vendors - Sell Gases Produced by Vendors A bove

>> Accuate Gas Company sells Airgas gases >> ILMO Products Company sells Specialty Gases of America >> Norlab S pecialty Gases sells Specialty Air Tech. Gases Ad ditional companies found to be distributors: >> Scientific Gases Corporation >> Special Gas Services, Inc. >> Coastal Specialty Gas >> Butler Gas Products Company >> Linde North America, Inc.

—“Through Spectra Gases we provide specialized high purity gas and biochemical knowhow”; although, statement on Airgas website makes claim that Airgas bought Linde Gas USA in June 2007 (not sure which is the package gas, or specialty gas, divis ion)