Transcript Document

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.
LAKE CITY, CITY OF
COLUMBIA CORRECTIONAL
MELTON BISHOP S/D
CLAYTON SMITH S/D
FORT WHITE, TOWN OF
1995
897
70
58
34
-
2000
1071
98
83
54
22
2007
1287
85
80
67
28
¥ 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.
Fig 3. Population from 1980 to 2007. The population of Lake City in 2009 was 12,614.
Contact: [email protected] · 352-392-5893 x2114
April 14, 2011