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In February 2006, the Jim Naismith Reservoir in San Patrico, Texas, has an infestation of the invasive Asian Clam, Corbicula fluminea (Müller, 1774). A 52-inch pipe was half-full of clams, and a treatment was done to erradicate the pipe-clogging clams. On 2006-04-18, with my colleague, Noe Barrera, I visited the reservoir and collected samples of sediment throughout the reservoir. We did not find any live clam by them, but did find empty shells. Near the reservoir there were thousands f empty shells removed from the pipes. Some samples were collected and brought to the lab for study and photography. By the time we were contacted, the problem had already be resolved. We did not receive any further information, so I believe the problem did not repeat in subsequent years. We wrote a short report: Moretzsohn, F. and N. Barrera. 2006. Occurrence of the Asian Clam, Corbicula fluminea, in the Jim Naismith Reservoir, Ingleside, Texas, April 2006. Report to the San Patricio Municipal Water Treatment Plant, San Patricio, Texas, May 2006. 19 pp. A record of the observation was filled at USGS Non Indigenous Species database: http://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=630284 This species is originally from Asia, and it was introduced in the US in 1924. It is now widespread throughout the country. The photos show different specimens that were removed from the pipes by the water treatment plant staff.