Statistics

Conversions
  • 1 acre inch = 27,154 gallons
  • 1 acre foot = 325,851 gallons
  • 1 acre foot approximately = football field from goal line to far 10 yard line and from sideline to sideline, filled with one foot of water.
  • 1 acre = 43,560 square feet
  • 14.5 acre inch allocation = 1.21 acre feet
This is something Frenchman Valley Coop tells farmers.  The DNR and UNL does not agree.

Water to Bushels

The first 9 inches of water is needed to grow the plant.  Each additional inch of water allows for about 13.2 bushels of seed production per acre.

Rainfall        10.0
Irrigation        14.5
Total Water Available        24.5
 
Water Required for Plant Growth          9.0
Water Available for Seed        15.5
Bushels per Inch        13.2
Possible Production      204.6

This is a WaterClaim prepared map based on Gary Hergert data.  Dr. Martin from UNL uses the same data and advocates farmers can maximize their profit if they use 8 inches of irrigation.

 

Compact Compliance Numbers

  • By the end of year 2007 Nebraska and Colorado must both reduce their usage to less than 0. 

 

Compact Overage by Year NE CO KS
2003 -25,420 -12,050 118,870
2004 -36,640 -12,130 99,330
2005* -42,000 -11,000 ?
2006 ? ? ?
2007 ? ? ?
Total Overage -104,060 -35,180 218,200
3 Year Average -34,687 -11,727  

2005 numbers are DNR estimates

 

Virgin Water Supply in Acre Feet
1995 650,670
1996 773,684
1997 633,962
1998 585,622
1999 561,922
2000 481,979
2001 553,021
2002 390,633
2003 416,570
2004 364,620


 

Basin "Facts"

  • Registered wells in the Nebraska portion of the Basin  
District Registered Wells Share
Upper Republican NRD 3,364 28.1%
Middle Republican NRD 3,317 27.7%
Lower Republican NRD 3,743 31.2%
Tri Basin NRD 1,558  13.0%
Total Acres 11,982   

 

  • Active Registered Wells according to the DNR Registration Database 1938-2003

District Registered
 Wells		 Share Registered
Acres		 Share
Upper Republican  3,424 33.4% 525,283 38.9%
Middle Republican  3,196 31.2% 409,402 30.3%
Lower Republican  3,634 35.4% 417,252 30.9%
Total Acres 10,254   1,351,937  

 

  • Certified Acres (includes acres no longer irrigated such as pivot corners with water allocation) 
District Certified Acres
Upper Republican NRD 446,800
Middle Republican NRD 313,545
Lower Republican NRD 326,587
Tri Basin NRD 189,677
Total Acres 1,276,609

 

  • Average Field Size

District

Wells

 Acres Size

Upper Republican NRD

 3,364 395,150 117.5

Middle Republican NRD

 3,317 209,226 63.1

Lower Republican NRD

 3,743 217,180 58.0

Tri Basin NRD

 1,558  422,299 271.1
  11,982  1,243,890 103.8

 

  • Allocation of the Nebraska supply by District

District

Allocation

Upper Republican NRD

44%

Middle Republican NRD

30%

Lower Republican NRD

26%

Tri Basin NRD

 

 

  • Pumpage by district as used by the Model

Pumpage is estimated for the Middle and Lower Districts based on power company readings.  

    Year URNRD MRNRD LRNRD Total
    1992 334,973 169,657 145,458 650,088
    1993 256,709 60,881 41,515 359,105
    1994 494,951 271,512 174,458 940,921
    1995 439,376 280,015 246,010 965,401
    1996 328,475 174,909 124,411 627,795
    1997 489,546 288,260 237,626 1,015,432
    1998 503,415 297,421 194,440 995,276
    1999 380,234 135,750 153,409 669,393
    2000 663,490 380,069 263,751 1,307,310
    2001 446,481 307,861 238,542 992,884
    2002 644,833 426,294 361,303 1,452,430
    Average 452,953 253,875 198,266 905,094

Share of the Pumpage by District

Year URNRD MRNRD LRNRD
1992 52% 26% 22%
1993 71% 17% 12%
1994 53% 29% 19%
1995 46% 29% 25%
1996 52% 28% 20%
1997 48% 28% 23%
1998 51% 30% 20%
1999 57% 20% 23%
2000 51% 29% 20%
2001 45% 31% 24%
2002 45% 30% 25%
Avg 50%

22%

There is very close to the same number of wells in each district but usage is dramatically different.