What a perc test tells you
A traditional percolation test measures how water moves through soil under a defined procedure. Modern onsite-wastewater review can also consider soil profile, seasonal water table, limiting layers, slope, setbacks, lot size and design flow.
The result should be interpreted under current local rules and for the specific planned use.
What affects perc-test cost
Cost varies with location, authority fees, evaluator type, test method, number of test locations, excavation, access, travel, site plan and whether additional design work is included.
The lowest quoted test price may not include the full application, design or permit process. Ask what deliverables and authority fees are included.
What happens if land does not perc
A poor result does not always end the project, but alternatives can be expensive or unavailable. Possible paths may include a different location, lower design flow, alternative system, additional land, public sewer or a different intended use—subject to local approval.
Do not assume that an advanced system will automatically solve the issue. Confirm that the authority allows it and that the site can meet the design requirements.
Protect the land purchase
Where septic is essential, structure the investigation so an acceptable result is obtained before the relevant contract deadline. Preserve the report, site plan, approval, expiration information and design assumptions.