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.
A series of investigations produced inconclusive findings but culminated in the withdrawal of the troops (see FORT RINGGOLD). In 1925 Rio Grande City reported a population of 3,000, but by 1931 it had 2,283 residents and ninety businesses.