Mid-Level NPDES Permit Writer & Environmental Scientist

Sigma Earth; Fairfax (VA); On-site; USD 65,000 - 90,000; Full time

Job summary

ERG in Fairfax, VA is seeking a Mid-Level Environmental Scientist to support the National Pollutant Discharge Elimination System (NPDES) permitting program across the United States. You will work with multidisciplinary teams to develop permits, analyze data, and prepare technical and regulatory documents under the mentorship of senior staff.

Ideal candidates have 3–10 years of experience, strong communication and data analysis skills, and a background in Environmental Science or related field.

Qualifications

• Experience with NPDES program implementation or other water-related environmental programs.
• Familiarity with the NPDES permitting program and regulations pertaining to wastewater and stormwater.
• Outstanding written and oral communication skills.
• Strong data analytical skills.

Responsibilities

• Develop, review, and revise NPDES permits, fact sheets, notices, and regulatory records.
• Review permit applications and related technical materials for regulatory relevance and completeness.
• Characterize discharges, treatment systems, and pollutants of concern.
• Develop technology-based effluent limitations and monitor requirements.
• Coordinate with authorities, facilities, and project teams to resolve permitting issues.
• Prepare technical memoranda and regulatory analyses.
• Support public participation activities and responses to comments.
• Track assignments, budgets, schedules, and deliverables across permits.

Skills

Written & oral communication

Data analysis

Desktop research

Team collaboration

Education

MS/BS/BA in Environmental Science, Biology, Chemistry, Geology, Engineering

Tools

Microsoft Word

Excel

Job description

ERG in Fairfax, VA is seeking a Mid-Level Environmental Scientist to support the National Pollutant Discharge Elimination System (NPDES) permitting program across the United States. You will work with multidisciplinary teams to develop permits, analyze data, and prepare technical and regulatory documents under the mentorship of senior staff.

Ideal candidates have 3–10 years of experience, strong communication and data analysis skills, and a background in Environmental Science or related field.