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Year  Assessment Roll Hectares within Irrigation Districts
ha
Area actually irrigated in the Irrigation Districts
ha
Utilisation rate of Assessment Roll Hectares
%
Water License Allocation for Irrigation Districts
m3
Total Volume of Water Diverted to Irrigation Districts
m3
Utilisation rate of water license allocation
%
Total Private Hectares Irrigated
ha
Total Number of Private Irrigation Licences
#
Average number of Hectares per Licence
ha
Total Hectares Licenced for Irrigation
ha
 
 
1899         275,797,905                     
1900         275,797,905                     
1901         275,797,905                     
1902         275,797,905                     
1903         275,797,905                     
1904         969,014,699                     
1905         969,014,699                     
1906         969,014,699                     
1907         969,014,699                     
1908         1,154,036,975                     
1909         1,154,036,975                     
1910         1,154,036,975                     
1911   19,223     1,154,036,975                     
1912   31,039     1,154,036,975                     
1913   31,889     1,536,909,738                     
1914   37,415     1,536,909,738                     
1915   34,203     1,536,909,738                     
1916   29,800     1,536,909,738                     
1917   42,509     1,721,932,014                     
1918   61,727     1,721,932,014                     
1919   76,055     1,784,839,588                     
1920   53,410     1,784,839,588                     
1921   87,905     1,784,839,588                     
1922   97,657     1,784,839,588                     
1923   56,730     1,794,090,702                     
1924   96,405     1,794,090,702                     
1925   97,060     1,794,090,702                     
1926   107,903     1,794,090,702                     
1927   17,091     1,794,090,702                     
1928   55,393     1,794,090,702                     
1929   103,615     1,794,090,702                     
1930   136,392     1,794,090,702                     
1931   142,536     1,794,090,702                     
1932   113,656     1,794,090,702                     
1933   136,868     1,794,090,702                     
1934   132,349     1,794,090,702                     
1935   154,936     1,794,090,702                     
1936   153,235     1,794,090,702                     
1937   165,069     1,794,090,702                     
1938   163,389     1,794,090,702                     
1939   150,259     1,794,090,702                     
1940   163,887     1,794,090,702                     
1941   161,597     1,794,090,702                     
1942   139,810     1,794,090,702                     
1943   164,496     1,803,650,186                     
1944   173,919     1,803,650,186                     
1945   167,074     1,810,434,336                     
1946   171,185     1,810,434,336                     
1947   181,006     1,810,434,336                     
1948   162,752     1,810,434,336                     
1949   183,885     1,810,434,336                     
1950   181,674     2,441,245,584                     
1951   138,163     2,441,245,584                     
1952   145,335     2,441,245,584                     
1953   131,190     2,539,924,131                     
1954   184,709     2,539,924,131                     
1955   164,921     2,539,924,131                     
1956   201,217     2,539,924,131                     
1957   197,628     2,539,924,131                     
1958   199,646     2,539,924,131                     
1959   212,809     2,539,924,131                     
1960   240,703     2,539,924,131                     
1961   246,213     2,539,924,131                     
1962   255,867     2,539,924,131                     
1963   256,599     2,786,016,093                     
1964   258,151     2,786,016,093                     
1965   200,316     2,786,016,093                     
1966   199,566     2,786,016,093                     
1967   231,684     2,786,016,093                     
1968   238,126     2,786,016,093                     
1969   218,106     2,786,016,093                     
1970279,877  231,894  82.86  2,786,016,093                     
1971281,496  230,932  82.04  2,786,016,093                     
1972283,065  233,182  82.38  2,786,016,093                     
1973294,832  271,327  92.03  2,786,016,093                     
1974346,769  285,966  82.47  2,868,659,376                     
1975362,324  275,796  76.12  2,868,659,376                     
1976377,823  320,195  84.75  2,868,659,376  2,075,175,310  72               
1977397,724  339,571  85.38  2,868,659,376  2,301,763,457  80               
1978407,043  311,579  76.55  2,868,659,376  1,296,015,669  45               
1979408,714  352,052  86.14  2,868,659,376  1,912,633,241  67               
1980419,729  344,921  82.18  2,868,659,376  1,994,515,466  70               
1981429,713  345,661  80.44  2,868,659,376  2,108,751,919  74               
1982439,553  365,529  83.16  2,935,267,395  1,905,034,993  65               
1983448,248  392,384  87.54  2,935,267,395  2,144,762,188  73               
1984454,294  402,818  88.67  2,935,267,395  2,484,480,356  85               
1985462,109  417,324  90.31  2,935,267,395  2,429,603,982  83               
1986468,915  418,387  89.22  2,935,267,395  2,325,678,203  79               
1987472,839  419,720  88.77  2,935,267,395  2,313,187,966  79               
1988478,418  426,001  89.04  2,935,267,395  2,923,238,480  100               
1989484,494  434,133  89.61  2,938,967,841  2,361,431,908  80               
1990492,148  443,669  90.15  2,938,967,841  2,504,275,272  85               
1991496,761  433,344  87.23  3,255,355,933  2,300,956,760  71               
1992500,988  441,071  88.04  3,321,347,211  2,301,361,342  69               
1993502,011  356,402  70.99  3,342,316,403  1,384,426,713  41               
1994504,652  447,318  88.64  3,342,316,403  2,251,253,609  67               
1995508,526  399,574  78.58  3,347,558,700  2,019,461,402  60               
1996513,197  474,089  92.38  3,433,902,429  2,446,471,846  71               
1997517,144  478,439  92.52  3,433,902,429  2,341,970,031  68  102,737  2,508  40.96  619,881   
1998519,632  467,140  89.90  3,433,902,429  2,264,850,280  66  103,273  2,523  40.93  622,905   
1999524,527  481,646  91.82  3,433,902,429  2,017,365,717  59  104,109  2,509  41.49  628,635   
2000526,489  492,496  93.54  3,433,902,429  2,786,942,438  81  112,432  2,771  40.57  638,921   
2001529,646  493,445  93.16  3,433,902,429  2,583,837,318  75  110,217  2,786  39.56  639,864   
2002535,441  495,570  92.55  3,433,902,429  1,994,187,359  58  111,531  2,808  39.72  646,972   
2003536,410  499,528  93.12  3,433,902,429  1,984,049,372  58  114,629  2,828  40.53  651,039   
2004542,182  498,658  91.97  3,453,823,161  1,768,938,774  51  115,447  2,840  40.65  657,629   
2005543,280  496,184  91.33  3,453,823,161  1,488,462,272  43  118,595  2,864  41.41  661,875   
2006544,025  488,568  89.81  3,453,823,161  1,584,793,503  46  120,177  2,888  41.61  664,202   
2007548,853  491,531  89.56  3,451,356,197  1,953,602,106  57  125,749  2,924  43.01  674,602   
2008550,030  495,776  90.14  3,451,356,197  1,797,940,399  52  125,563  2,929  42.87  675,592   
2009                               
2010                               
2011                               
2012                               
2013                           687,840   
 

References and Related Online Materials

Assessment Roll Hectares within Irrigation Districts:

Alberta Agriculture and Rural Development, Water Resource Branch. (2009). Alberta Irrigation Information: Facts and Figures for the Year 2008. Last updated March 29, 2010. http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/irr7401 (accessed June 22, 2010).

Note: Acres converted to hectares using conversion factor 1 acre = 0.404685642 hectares.

Area actually irrigated in the Irrigation Districts:See reference for: Assessment Roll Hectares within Irrigation Districts
Utilisation rate of Assessment Roll Hectares:Calculated from first two columns.
Water License Allocation for Irrigation Districts:

Calculation based on: Alberta Agriculture and Rural Development. (no date). Irrigation District Water Licence Allocations. Last updated March 29, 2010. http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/irr12434 (accessed June 22, 2010).

Note: Acre-feet converted to cubic metres using conversion factor 1 acre-foot = 1233.48184 cubic metres.

Total Volume of Water Diverted to Irrigation Districts:

See reference for: Assessment Roll Hectares within Irrigation Districts

Note: Acre-feet converted to cubic metres using conversion factor 1 acre-foot = 1233.48184 cubic metres.

Utilisation rate of water license allocation:Calculated from previous two columns.
Total Private Hectares Irrigated:See reference for: Assessment Roll Hectares within Irrigation Districts
Total Number of Private Irrigation Licences:See reference for: Assessment Roll Hectares within Irrigation Districts
Average number of Hectares per Licence:Calculated from previous two columns. 
Total Hectares Licenced for Irrigation:

2013. http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/irr13223/$file/irrigstatsbrochure2013.pdf?OpenElement 

Calculted by adding \"Assessment Roll Hectares within Irrigation Districts\" and \"Total Private Hectares Irrigated.\"