When 315 acres abutting the Black Hills National Forest became available, Jim and Dusty Schad of Schad Construction Inc. bought it. Father and son, noted for custom-built homes in Rapid City, S.D., envisioned a unique, upper-end development fitting into and preserving the surroundings. Although neither are developers, they picked the 1- to 3-acre building sites, then drew in the roads and lot lines.But the state Department of Environment and Natural Resources denied permits for conventional onsite systems because those in the Black Hills were contaminating Rapid City’s water supply. “We thought the project would die,” says Dusty Schad. “Bringing city
