How Much Hot Spring Water is Collected?
In 1987 the United State Geological Survey (USGS) installed a weir in the basement of the park administration building to measure how much water flows into the collection reservoir and another weir to measure how much water is not used and flows into Hot Springs Creek. Now we can see data on exactly how much water is coming into the system to be used each day in bathhouses and drinking fountains. The USGS makes this information available on their website. Before the weirs were installed, data on the amount of water produced by the hot springs was estimated by periodically draining the collection reservoir and recording how long it took to refill. Older park publications reflect an estimate of 850,000 gallons of water per day. Now we know that that estimate was too high because the current weir data shows around 700,000 gallons per day being collected into the reservoir for use by bathhouses and at drinking publics for the public. The weir system only measures the amount of hot spring w
