LOWER ARKANSAS WATER MANAGEMENT ASSOCIATION
  • Home
  • STAFF
  • News
  • Helpful Member Info
How to Estimate Augmentation Plan Pumping

Pumping for a well in LAWMA’s Augmentation plan requires the well owner to know the following four components:
  1. Number of LAWMA Common Shares
  2. LAWMA Common Share Allocation Percentage (Alloc %)
  3. Number of LAWMA Preferred Shares (assumed at 100% Allocation)
  4. Presumptive Depletion Factor for the well (PDF)


The following equation is used to determine the annual pumping volume per well:

​     Common Share x Alloc %  = Pumping
                         PDF 

​

Example:  A well located between JMR and the Buffalo that is sole source flood irrigation and is assigned 100 LAWMA Common Shares by the owner.  The LAWMA Board has set the allocation to a common share at 60%.

​     100 Common Shares x 60%  =  88.2 acft
                       0.68


If a well has only Preferred shares, then the formula uses 100% for the allocation percentage.
If a well has Common and Preferred shares, then the formula is used to determine the allocation for the Common and Preferred shares independently with both totals added together for a final annual allocation.
​
Note:  The Usability Factor for all structure in the Augmentation Plan is 1.00
Lower Arkansas Water Management Association
310 South 6th Street
P.O. Box 1161
Lamar, CO 81052
719-336-9696 Phone 
719-336-2422 Fax
[email protected]

2022 © Copyright  LAWMA. All rights reserved. Website design by Western Web Consulting