Catalyst is a leader in the oil and gas industry, working for both industry and government. With over 30 years of experience working with local and national oil and gas operators, and has served as expert advisors to the Governor, legislature, and local agencies in California. For the past 30+ years, our team has assisted operators with environmental regulatory compliance in all matters of day-to-day field operations, including stormwater sampling, groundwater monitoring, biological and paleontological surveys, permitting and reporting. We have conducted environmental constraints analysis of potential new or expanded field operations to optimize site selection and minimize environmental impacts. Over the last decade we have become expert advisors to government agencies overseeing oil and gas operations. This work has been conducted under the umbrella of the California Council on Science and Technology (CCST) addressing hydraulic fracturing, water management, and gas handling.