Last updated: May 30, 2026. Screening-grade public-source guide only.
What to ask next
Who handles septic permits for this parcel?
Is a perc test, soil evaluation, or site visit required before approval?
Are there known soil, slope, flood, or drainage limits for this area?
What records or prior septic permits exist for this parcel, if any?
What a perc test is
A perc test is shorthand buyers often use for a soil absorption or soil/site review that helps show whether wastewater conditions need closer review.
If public sewer is not available, wastewater feasibility can affect price, timing, offer terms, and whether the parcel still fits the intended use.
A perc test is a first-pass screen, not a final answer. Soil, slope, wetness, setbacks, and the county path still matter.
What public sources can show
Those sources can help you identify likely concern, parcel context, and the office path to ask next. They do not substitute for county review or site evaluation.
Public source limits
Safe boundary
A favorable map or an old record can be useful, but it does not prove septic approval, permit approval, or buildability certainty.
Use the public-source signal to decide what needs written follow-up, not as a final parcel conclusion.
Questions to ask
Which office handles septic permits or onsite wastewater review for this parcel?
What document type would answer this question: soil/site evaluation, perc result, permit, or another record?
Does the record apply to the current parcel boundaries and intended use?
If the county parcel viewer or soil map looks favorable, what still needs site evaluation?
What should I verify in writing before I make an offer?
What to verify next
Use the first-pass tool to spot obvious public-source questions before you rely on the parcel.
Coming later. For now, keep using the free checker, the sample report, and the Parcel Pre-Screen Report.
Preview the source-backed structure, status language, and buyer questions before you order.
Use the paid report when the parcel is close to an offer and you need a source-cited pre-screen.
Shows mapped soil context that can flag drainage, landscape, and soil-property clues worth a closer look.
Explains the basic system types, common site concerns, and the public guidance context around onsite wastewater.
Explains what soil surveys are and how they help you read mapped soil conditions before you ask the county.
Helps you check flood-map context when drainage, wetness, or site access need another public-source look.
Start with NRCS Web Soil Survey and the USDA soil survey overview for mapped soil context, then use EPA septic guidance and FEMA flood maps when drainage or wetness need more context. For the parcel-specific path, ask your county health department or local onsite wastewater office which record and review step applies to the lot.
It usually means the soil or site conditions raised a concern in the review process, but the exact meaning depends on the record, the parcel, and the current county or state standards.
No. A soil map is a broad public-source clue. A perc test or soil/site evaluation is parcel-specific and still needs the right office or professional review path.
Usually the county health department, environmental health office, or another local wastewater office does. Ask the county which office handles the current parcel.
Yes. A favorable map is only a first-pass signal. The county can still need parcel-specific review, field work, or other verification before you rely on the land.
This page uses source-backed screening language from NRCS Web Soil Survey, USDA soil survey guidance, EPA septic guidance, county parcel viewer context, and county health / septic office paths. It turns those sources into buyer questions rather than parcel-specific conclusions.
Before You Buy Land helps identify red flags, unknowns, public-source links, and verification questions. We do not provide legal, title, survey, engineering, appraisal, septic, wastewater, permitting, utility, or final land-use advice.