What is a percolation (perc) test?
A percolation test measures how quickly water drains through soil. It tells you whether a site can support a conventional septic system.
Read moreGlossary
Learn the terms
Plain-English definitions for soil testing, septic design, land surveying, and environmental consulting work — with sources from EPA, NOWRA, NSPS, and state agencies.
What is septic system design?
Septic system design is the engineered plan for treating wastewater on-site when municipal sewer service is unavailable. It covers tanks, drainfields, and soil suitability.
Read moreEnvironmental consulting, explained
Environmental consultants help property owners, developers, and government agencies meet environmental regulations through testing, reporting, and permitting.
Read moreWhat is a land survey?
A land survey measures and maps a property — its boundaries, features, and elevations. Different survey types serve different legal and construction purposes.
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