Jefferson County septic services.

Jefferson County splits the two layers cleanly. On sewage, DEP's service tabulation puts 32 of the county's 34 municipalities under one body, the Jefferson County Sewage Association, so most permits run through that agency rather than a township office. On land use there is nothing at the county level at all: the county's own Department of Development states that Jefferson County has no county-wide subdivision and land development ordinance and no county zoning, so lot size and setbacks come from the municipality.

South Branch of North Fork Redbank Creek, Shippen Run, Craft Run are carried on DEP's Chapter 93 drainage lists as Exceptional Value, and 14 further Jefferson entries are High Quality. A lot draining to one of them loses the § 71.51(b) planning exemption: the sewage module goes to the municipality and then to DEP, which is a second reviewer and a longer clock rather than a different septic system. Check your own stream on the drainage list before assuming the ordinary path.

The dominant constraint here is slow-percolating subsoil below 12 inches (73.9% of rated soils), followed by bedrock within 60 inches of the surface (59.3%). NRCS rates 92.5% of rated ground very limited for a conventional in-ground trench, 63.8% for a sand mound and 42.6% for drip irrigation -- where conventional is out, drip is often the system that works.