WADMALAW ISLAND — Residents here are concerned that a planned wetland mitigation bank near the Leadenwah Creek would introduce salt into freshwater habitat for a number of animals, including the threatened American wood stork.

The plan by Point Farm, MB LLC is meant to enhance and restore tidal salt marsh on more than 2,000 acres in Charleston County, the company said in a permit application to the state.

The proposal would change an already salty pond to tidal salt marsh, turn 10.14 acres of freshwater impoundments brackish and expand non-wetland waters to 20.60 acres of tidal salt marsh and creeks.