1. Hydraulic Fracturing Regulation in the U.S. William J. Brady, Esq. Partner - Grimshaw & Harring; Adjunct Professor University of Denver Sturm College of Law 1700 Lincoln St., #3800 Denver, CO 80203 303-839-3800 2255 East Evans Avenue Denver, Colorado 80208 303-871-6000 Source: Anadarko Petroleum Corporation

2. Hydraulic Fracturing Regulation in the United States: The Laissez-Faire Approach of the Federal Government and Varying State Regulations Professor William J. Brady University of Denver, Sturm College of Law Grimshaw & Harring, P.C. Wells Fargo Center 1700 Lincoln Street, Suite 3800 Denver, Colorado 80203 303-839-3992 | 303-839-3838 (fax) wmjbrady@grimshawharring.com | www.grimshawharring.com An Introduction to Hydraulic Fracturing in the U.S.

3. Rocky Flats – Former NuclearWeapons Facility, Golden, Colorado, US

11. Northwest Colorado, Northeast Utah, Southwest Wyoming

17. In the absence of competent scientific evidence, an action or policy which has a suspected risk of causing harm to the public or to the environment requires that the burden of proof falls on those undertaking the action or policy. Simply stated, in the face of scientific uncertainty, when a potentially serious harm is likely to occur, policymakers should make discretionary decisions to prohibit the proposed conduct or activity. Once proof of a lack of harm is established, the prohibition may be lifted. “The Precautionary Principle”

20. Source: Anadarko Petroleum Corporation

21. Hydraulic Fracturing Regulation in the United States: The Laissez-Faire Approach of the Federal Government and Varying State Regulations Professor William J. Brady University of Denver, Sturm College of Law Grimshaw & Harring, P.C. Wells Fargo Center 1700 Lincoln Street, Suite 3800 Denver, Colorado 80203 303-839-3992 | 303-839-3838 (fax) wmjbrady@grimshawharring.com | www.grimshawharring.com An Introduction to Hydraulic Fracturing in the U.S.

22. Hydraulic Fracturing Regulation in the U.S. William J. Brady, Esq. Partner - Grimshaw & Harring; Adjunct Professor University of Denver Sturm College of Law 1700 Lincoln St., #3800 Denver, CO 80203 303-839-3800 2255 East Evans Avenue Denver, Colorado 80208 303-871-6000 Source: Anadarko Petroleum Corporation