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Ag Water Demand
PROJECTED ANNUAL WITHDRAWALS
Ocmulgee River Basin


Projected withdrawals from groundwater (GW) and surface water (SW)
for agricultural irrigation of major row crops and specialty crops
Annualized pumping rate (MGD) for the earliest projection through furthest projection years.

Year - Sub-basin GW
Wet *		 GW
Med *		 GW
Dry *		 SW
Wet 		SW
Med 		SW
Dry
 
  2011 - Little Ocmulgee 4.22 6.67 9.52 1.38 2.17 3.12
  2020 - Little Ocmulgee 4.31 6.82 9.73 1.42 2.23 3.2
  2030 - Little Ocmulgee 4.43 7.01 10 1.47 2.3 3.31
  2040 - Little Ocmulgee 4.57 7.22 10.3 1.52 2.38 3.43
  2050 - Little Ocmulgee 4.71 7.45 10.7 1.58 2.47 3.56
 
  2011 - Lower Ocmulgee 41.2 60.5 82 7.86 11.9 16.6
  2020 - Lower Ocmulgee 42.1 61.8 83.9 8.08 12.3 17.1
  2030 - Lower Ocmulgee 43.2 63.5 86.4 8.36 12.7 17.7
  2040 - Lower Ocmulgee 44.4 65.3 89 8.67 13.2 18.4
  2050 - Lower Ocmulgee 45.7 67.3 91.9 9.01 13.7 19.2
 
  2011 - Upper Ocmulgee 0.93 1.38 1.98 0.08 0.13 0.18
  2020 - Upper Ocmulgee 0.95 1.4 2.01 0.08 0.13 0.18
  2030 - Upper Ocmulgee 0.97 1.43 2.06 0.08 0.13 0.19
  2040 - Upper Ocmulgee 0.99 1.47 2.11 0.08 0.13 0.19
  2050 - Upper Ocmulgee 1.01 1.5 2.17 0.08 0.13 0.19
 
  2011 - Basin Total 46.4 68.5 93.5 9.32 14.2 19.9
  2020 - Basin Total 47.3 70 95.7 9.58 14.6 20.5
  2030 - Basin Total 48.6 71.9 98.4 9.91 15.1 21.2
  2040 - Basin Total 49.9 74 101 10.3 15.7 22
  2050 - Basin Total 51.4 76.3 105 10.7 16.3 22.9
 
  

* Wet year = irrigation withdrawals expected for the wettest 25th percentile (one in 4 years), Med years = median year, Dry year, irrigation withdrawals expected for the driest 25th percentile (one in four years).

Source: Details on the methods for projecting withdrawals and month by month withdrawals HERE.

Last Updated on 7/31/2009 by Jim Hook