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 County Website. The gateway to the San Juan Mountains, Rio Grande County is one of the highlights of the San Luis Valley. The county covers 913 square miles ranging from around 7,000 feet on valley floor to numerous 13,000-foot peaks.