Practice Areas



Natural resources and permitting expertise

SEPI’s team of scientists, planners, and engineers provide a wealth of knowledge and experience in the environmental field. Our team has served a wide range of clients in the private, municipal, state, and federal arenas.  

North Carolina Rare Species Survey Calendar

This interactive calendar includes optimal survey periods for some of the rare species of North Carolina that may need addressing for the development of projects. Click on  the individual images for species information.

Visit for a complete list of protected species.

Phase I Environmental Site Assessment (ESA)

SEPI, Inc. understands that a Phase I Environmental Site Assessment (ESA) is the gold standard for evaluating potential environmental liabilities associated with a real estate asset of any type. Done correctly and the Phase I ESA provides significant protection for the developer. Done incorrectly, and the developer will likely find instances of contamination they will be responsible for later.

For that reason, SEPI’s environmental team adheres closely to those requirements set by the American Society for Testing and Materials (ASTM) for completing Phase I Environmental Site Assessments. Our team of qualified environmental professionals have a proven track record identifying potential environmental issues associated with sites and have the expertise to distinguish what should and should not be considered a Recognized Environmental Condition. In addition, our team’s capacity allows us the flexibility to begin work immediately to meet project schedules.

“Thank you so much! You and the SEPI team have outdone yourselves, once again.” -Mariana Molina, President, Bella Vista Development Group, LLC.

Take a Glimpse at Our Environmental Team




Natural resources
Environmental due diligence
Stream & wetland delineations
Riparian buffer determinations
Wetland & stream mitigation design & monitoring
Surface & groundwater sampling & monitoring
Sediment sampling
Stormwater management
Biotic community assessment & inventory
Threatened & endangered species surveys
Invasive species survey, monitoring, & management
Aquatic & marine assessment
Submerged aquatic vegetation (SAV) surveys/mapping
Benthic macroinvertebrate surveys
404/401 & CAMA permitting
Coastal areas evaluations & delineations
Beach renourishment & biological monitoring
Coastal science
Coastal scour monitoring
Phase I Environmental Site Assessment (ESA)

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SEPI [A Division of TranSystems]