- EPA Region 1
- Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
- 1 Congress Street
- Boston, MA 02203
- (617) 565-3420
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- EPA Region 2
- New Jersey, New York, Puerto Rico, Virgin Islands
- 290 Broadway
- New York, NY 10007
- (212) 637-3000
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- EPA Region 3
- Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia
- 841 Chestnut Street
- Philadelphia, PA 191107
- (215) 597-9800
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- EPA Region 4
- Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee
- 345 Courtland Street, NE
- Atlanta, GA 30365
- (404) 347-4727
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- EPA Region 5
- Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin
- 77 W. Jackson Boulevard
- Chicago, IL 60604
- (312) 353-2000
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- EPA Region 6
- Arkansas, Louisiana, New Mexico, Oklahoma, Texas
- 1445 Rose Avenue
- Dallas, TX 75202
- (214) 665-6444
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- EPA Region 7
- Iowa, Kansas, Missouri, Nebraska
- 726 Minnesota Avenue
- Kansas City, KS 66101
- (913) 551-7000
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- EPA Region 8
- Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming
- 999 18th Street
- Denver, CO 80202
- (303) 293-1603
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- EPA Region 9
- Arizona, California, Hawaii, Nevada, Guam, Marianas
- 75 Hawthorne Street
- San Francisco, CA 94105
- (415) 744-1702
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- EPA Region 10
- Alaska, Idaho, Oregon, Washington
- 1200 Sixth Avenue
- Seattle, WA 98101
- (206) 553-1200
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