1. Water Use in Columbia County Since 1980
Kathleen A. McKee, M.S. University of Florida Water Institute
Annual water use data in Columbia county using records from USGS and SRWMD from 1980 to 2007 for Agriculture (estimates by USGS every 5 yrs), Commercial/Indust/Power (from permitee reports), Public Supply (from permittee reports), and Domestic Self Supply (estimates by USGS).
Fig 2. Total water use by category in Columbia county, FL from 1980 to 2007 in millions of gallons per year. Population served by public supply was always less than population served by on-site wells. Agric from USGS = Agricultural calculated by USGS every 5 years using estimated irrigated crop acreage mul­tiplied by a use coefficient from selected crop irrigation models; DomSelfSup = Domestic Self-Supply (USGS calculates using statewide per capita water use rate * population not using public supply)¥; PubSupp = Public Supply (from monthly permittee reporting); Comm Ind Pow = Industrial/commercial/mining/power (from monthly permittee reporting).
Fig 1. Ichetucknee springshed, counties, cities, springs, water management district boundaries.
Table 1. Largest permitted water users in Columbia county for 3 different years showing millions of gallons per year. Data from SRWMD.
¥ From 1980 to 2010 the estimated per capita rate for Dom Self supply was between 95 and 108 gallons per day per person
Project funded by SJRWMD with assistance from Rich Marella, USGS.
Contact: · x2114
Fig 3. Population from 1980 to The population of Lake City in 2009 was 12,614.
April 14, 2011