Freshwater withdrawals by category in Hillsborough County, 1965-2000
(Compiled by the U.S. Geological Survey, Tallahassee, all values in million gallons per day; ----, no or partial data were available; N/A, totals not available)
				Domestic		Commercial-		Agricultural		Recreational
	Public supply			self-supplied		industrial-mining		self-supplied		irrigation		Power generation		Total freshwater withdrawn
Year	Ground	Surface	Transfers	Ground	Surface	Ground	Surface	Ground	Surface	Ground	Surface	Ground	Surface	Ground	Surface	Total
1965	18.80	38.20	13.20	6.50	0.00	82.00	2.00	44.73	11.21	----	----	0.00	0.00	152.03	51.41	203.44
1966	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1967	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1968	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1969	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1970	35.20	44.60	28.00	14.44	0.00	40.00	11.90	64.20	5.10	----	----	0.00	0.00	153.84	61.60	215.44
1971	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1972	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1973	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1974	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1975	31.44	52.70	24.27	21.26	0.00	20.80	8.10	48.50	2.27	----	----	0.00	0.00	122.00	63.07	185.07
1976	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----	----
1977	41.38	56.64	27.96	8.73	0.00	26.76	7.40	52.28	2.52	----	----	0.00	0.00	129.15	66.56	195.71
1978	43.40	45.00	22.40	9.65	0.00	35.50	9.30	61.60	3.00	----	----	0.00	0.00	150.15	57.30	207.45
1979	54.21	39.00	25.11	8.14	0.00	21.40	7.90	62.54	3.02	----	----	0.00	0.00	146.29	49.92	196.21
1980	58.27	49.87	23.44	5.92	0.00	20.54	6.23	74.97	2.18	----	----	0.00	0.00	159.70	58.28	217.98
1981	63.61	58.70	22.31	6.15	0.00	15.20	7.20	91.57	3.15	----	----	0.00	0.00	176.53	69.05	245.58
1982	65.74	48.26	24.30	10.17	0.00	14.96	6.59	78.21	2.42	----	----	0.00	0.00	169.08	57.27	226.35
1983	56.77	49.48	23.07	18.31	0.00	22.57	0.07	79.77	2.47	----	----	0.07	0.00	177.49	52.02	229.51
1984	78.67	50.79	30.82	9.87	0.00	30.72	0.00	124.50	3.85	----	----	0.01	0.00	243.77	54.64	298.41
1985	81.81	64.46	32.18	6.05	0.00	34.36	0.00	103.15	2.84	4.75	0.61	0.05	0.00	230.17	67.91	298.08
1986	73.72	54.06	30.05	6.46	0.00	24.83	0.00	103.24	3.16	----	----	0.00	0.00	208.25	57.22	265.47
1987	63.64	58.96	17.44	14.67	0.00	20.47	0.00	88.52	3.07	----	----	0.00	0.00	187.30	62.03	249.33
1988	68.58	65.77	14.06	10.75	0.00	16.42	4.59	84.77	5.29	----	----	0.00	0.00	180.52	75.65	256.17
1989	68.06	68.69	7.36	14.75	0.00	22.07	4.18	96.50	12.80	----	----	0.04	0.00	201.42	85.67	287.09
1990	61.79	76.05	12.65	2.68	0.00	25.82	4.21	82.97	7.98	6.47	0.70	0.00	0.00	179.73	88.94	268.67
1991	56.78	77.28	13.20	2.86	0.00	22.46	9.33	73.74	19.99	3.75	3.58	0.00	0.00	159.59	110.18	269.77
1992	65.98	80.89	22.40	4.24	0.00	20.02	10.12	72.15	15.82	3.14	3.77	0.00	0.00	165.53	110.60	276.13
1993	63.13	68.07	17.23	13.85	0.00	36.83	5.62	64.74	3.15	6.49	4.11	0.00	0.00	185.04	80.95	265.99
1994	64.92	65.80	22.26	13.41	0.00	32.51	5.59	62.79	3.24	5.04	2.85	0.00	0.00	178.67	77.48	256.15
1995	63.75	65.75	15.67	12.37	0.00	27.60	5.54	60.39	2.90	5.11	2.93	0.00	0.00	169.22	77.12	246.34
1996	67.53	67.78	20.34	11.56	0.00	12.36	5.61	69.66	3.04	6.81	4.15	0.00	0.00	167.92	80.58	248.50
1997	77.16	74.52	19.80	10.39	0.00	12.24	4.42	63.18	3.15	9.38	4.39	0.00	0.00	172.35	86.48	258.83
1998	80.01	77.35	21.35	2.57	0.00	11.72	5.11	64.67	2.99	7.69	4.75	0.00	0.00	166.66	90.20	256.86
1999	83.91	86.67	29.57	5.65	0.00	10.28	5.60	68.25	3.28	7.48	4.25	0.00	0.00	175.57	99.80	275.37
2000	85.51	80.88	11.30	4.71	0.00	14.17	5.50	83.84	3.31	9.21	4.59	0.00	0.00	197.44	94.28	291.72
	Public supply transfers represent water withdrawn in Hillsborough County and exported for use in Pinellas County and includes transfer losses.
	Agricultural self-supplied includes water withdrawn for crop irrigation, livestock, and fish farming purposes.
	Recreational irrigation includes water used for all turf grass (golf, commercial, industrial, and public) irrigation. This category was accounted for under Agricultural from 1965-1984 and 1986-1989.
	Data source;	1965-1990 - Modified from USGS Open-File Report 94-521 (Marella, 1995).
		1991-1994, 1996-1999 - USGS unpublished water-use data files, Tallahassee, and published data from the Southwest Florida Water Management District, Brooksville.
		1995 - USGS Water-Resources Investigations Report 99-4002 (Marella, 1999).
		2000 - USGS Scientific Investigations Report 2004-5151 (Marella, 2004) and Southwest Florida Water Management District (2002).