The description was very vague, suggesting a college degree but not in anything in particular.

Here is job opening for an environmental protection specialist at the National Park Service (I did not see any at the EPA)

DUTIES:
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Oversees preparation, internal review, public involvement and review process for all environmental compliance documents. Oversees review of all non-NPS environmental documents that have a bearing on the Park programs. Functions as an environmental specialist who manages all aspects of compliance processes and environmental documentation for the Park. May act as project manager or team leader for preparation of environmental documents for projects that can potentially affect park resources and values.
Provides or coordinates with other specialists in obtaining technical and policy analysis of complex external proposals potentially affecting parks and other areas of NPS jurisdiction and prepares comments on NPS position. Advises and keeps supervisor informed of sensitive issues and NPS concerns regarding external proposals. Participates in policy development, development of recommendations, and implementation of proposed actions associated with environmental impact studies and special projects.
Area Information:
Lewis and Clark National Historic Trail (the Trail) was established by Congress in 1978 as a component of the National Trails System. The National Park Service administers the Trail in partnership with many Federal, State and local agencies, private organizations, and private landowners. This site commemorates the heroic expedition of the Corps of Discovery, led by Captains Meriwether Lewis and William Clark. Today the Trail follows that route as closely as possible and is approximately 4,600 miles long. The office is located near the Old Market District in downtown Omaha. Housing in the Omaha metropolitan area, which includes Council Bluffs, Iowa, is plentiful and moderately priced for rental or purchase. Public, private and parochial education opportunities abound. Colleges, universities, technical and business schools, hospitals, churches, and most other amenities are readily available. The mean temperature is 50 degrees, with 87 degrees being the average summer high and 16 degrees the average winter low. Various recreational opportunities are abundant in the area.

QUALIFICATIONS REQUIRED:
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All qualifications must be met by the closing date of this announcement, Monday, August 24, 2015.

Qualifying experience may be obtained in the private or public sectors. http://www.opm.gov/qualifications

One year of specialized experience equivalent to the GS-9 level in the federal service. Examples of qualifying experience include: Assisting in the management of federal, state, tribal, and county orders, ordinances, statutes, laws and regulations, directives and policies involving National Environmental Protection Act (NEPA) and underlying laws including Endangered Species Act (ESA) 7, National Historic Preservation Act (NHPA) 106 and 110, Wilderness Act, Clean Air Act (CAA) and Clean Water Act (CWA). I have experience assisting in the administration of compliance documentation in an ecologically diverse park experiencing a broad range of activities from resource monitoring to large scale construction. I engage in oral and written consultation with pertinent public, private, and professional agents, as well as other federal, state, and tribal agencies in facilitation of project implementation and program development regarding NEPA related compliance programs on a daily basis. I utilize my experience with Microsoft Excel, PowerPoint, Word, and other developed systems in the development, maintenance and administration of required NEPA related tracking, recordkeeping and administrative file and record systems. I assist in the development, administration, maintenance and presentation of plans and programs including NEPA based training. I utilize my experience in preparing, maintaining, reviewing, managing and administering environmental compliance files, projects, plans and programs. This includes Categorically Excluded actions, NHPA 106 and 110 and ESA 7 consultations and documentation, Records of Decision (RODs) and preparing, administering or managing other related environmental plans or programs as they may relate to diverse projects.
OR
A Ph.D. or equivalent doctoral degree, or I have 3 full years of progressively higher level graduate education leading to such a degree or LL.M. (Master of Law) that is directly related to the occupation such as Environmental Science, Environmental Policy, or Natural or Cultural Resource fields (for example, Ecology or Biology, Historic Preservation or Archeology). Note: Applicants who are qualifying on the basis of their education must submit a copy of their school transcripts. Transcripts do not need to be official.
OR
A combination of successfully completed graduate level education beyond the second year and some specialized experience that together meet the qualifications requirements of the position. Note: Applicants who are qualifying on the basis of their education must submit a copy of their school transcripts. Transcripts do not need to be official