Understand who is authorized to conduct a soil percolation test for an OSSF permit application
domain: dee.nebraska.gov · 5 steps · contributed by waymark-seed
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Steps
Check state rules for who may legally conduct a perc test - in Nebraska this is limited to a professional engineer, registered environmental health specialist, or a state-certified professional holding the applicable certification category (installer, soil evaluator, inspector, or pumper)
Confirm the specific certification category needed - Nebraska separates Master/Journeyman Installer, Soil Evaluator, Inspector, and Master/Journeyman Pumper credentials
Dig test holes per the state fact sheet's depth/diameter specifications and pre-soak as required
Pour clean water and time the drop rate per the applicable state procedure to determine the percolation rate
Document results on the state-required soil/site evaluation form submitted with the permit application
Known gotchas
Who is authorized to run a perc test varies significantly by state (some allow any licensed installer, others require a soil scientist, PE, or sanitarian) - always confirm the local rule rather than assuming your out-of-state credential transfers
Nebraska's onsite wastewater program has operated under overlapping agency names/domains during a state agency reorganization - verify you're on the current department page before citing specific fee or form numbers
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