Most alcohol is metabolized, or burned, in a manner similar to food, yielding carbon dioxide and water. A small portion of alcohol is excreted, such as through the breath, leaving the body as alcohol, unchanged. It is this latter process that allows for breath alcohol testing.
RIO GRANDE CITY, TEXAS. Rio Grande City, the county seat of Starr County and one of the oldest settlements in South Texas, is on the Rio Grande 100 miles from both Brownsville and Laredo in the extreme south central part of the county.
RIO GRANDE VALLEY. RIO GRANDE VALLEY. The Rio Grande valley is a complex economic and perceptual region. What Texans call the Valley centers on Starr, Cameron, Hidalgo, and Willacy counties in the lower Rio Grande region and extends from the mouth of the Rio Grande up the river for a distance of some 100 miles.