Geno Mammini, RG, is a senior hydrogeologist with Clear Creek Associates LLC. He has 21 years of experience in hydrogeologic and environmental consulting — 15 with Clear Creek, where he is responsible for managing hydrogeologic projects including groundwater investigations and hydrologic studies for groundwater supplies. Mammini has managed the design and construction of numerous public supply wells, ASR wells, vadose zone injection wells, and groundwater recharge basins throughout the Southwest. He has also authored many technical presentations on water supply well design, well evaluation and rehabilitation, groundwater recharge, and water resources planning. Mammini holds a B.S. in geology from California State University Sonoma.