KEM Excavation LLC Locally Owned & Operated By Keith E. Minard is offering a wide range of residential and commercial excavation and landscaping services. Serving the Ulster, Orange & Dutchess counties for almost 20 years KEM Excavation has built a reputation for prompt and reliable service in the Hudson Valley. Whether you in need of a new septic system, land and lot clearing, driveways/sidewalks or a drainage systems KEM Excavation can help!