Domenichelli & Associates, Inc. (D&A) is Civil Engineering firm located in EL Dorado Hills since May of 2002. We specialize in water resources planning, design and construction management. Our clients are primarily public agencies throughout California, along with local private development interests. Services span from large scale drainage studies for entire communities to the design and construction management of water and wastewater pipeline, pumping and storage facilities. D&A is a certified small business with 5 registered professional engineers and 12 total employees.