Kansas Data Entry
Annually, water use data (points of diversion, reported diversion quantity,
reported acres irrigated, system types, etc) are collected statewide via the
Kansas water use reporting system. Data for the model study domain is queried
from our Water Right Information System where the water use data is stored,
after entry and review.
Since water use is reported by point of diversion, little manipulation of the
data is required to develop the pumping files. Each point of diversion is
associated with a coordinate and its pumping is assigned to model cells based
that location. This same procedure is used to estimate ground water
withdrawals within the Almena Irrigation District as well as to estimate
pumping for non-irrigation uses required by the Accounting Procedures.
Recharge quantity is computed by point of diversion by multiplying the pumping
by the recharge rates prescribed in the accounting procedures for surface water
systems with the addition of a new system type for pivots with drops at 12%.
Zero recharge is assumed for drip systems. For non-irrigation uses, 50% of the
diversion is assumed to be recharge.
Recharge and irrigated acreage distribution
Note: See below for additional information regarding special handling of
overlaps within the Almena Irrigation District.
For our 1940-2000 datasets, recharge was essentially applied to the location of
the point of diversion, with adjusted when the resulting acreages as greater
than the grid cell. For non-irrigation use, recharge will continue to be done
in this manner. However, for years 2001, 2002, and beyond, Kansas' method
distributes recharge, as well as reported acres irrigated, to the authorized
place of use.
Each water right in Kansas has a specified authorized place of use. In many
cases, not all authorized lands are irrigated each year. While the annual
water use report includes a reporting of the quantity of acres irrigated for
that year, the report does not designate the particular acres irrigated. In
addition, Kansas system of water rights allow for overlapping places of use and
points of diversion between water rights.
To distribute estimated recharge as accurately as data will allow, we utilize a
procedure developed by DWR to analyze water right groups with overlaps. A data
query is utilized to develop "overlap groups" which is a listing of all the
water rights and their points of diversions which have an association with one
another, whether overlapping places of use or points of division. Our
procedures for distributing recharge and acreages irrigated utilize these
Within WRIS, the authorized place of use is designated by a listing of each
quarter-quarter section (commonly known as 40-acre tracts) and the number of
acres within it which is authorized for water use under that right.
So for each overlap group the following tasks are done:
- the estimated recharge and reported acres irrigated for the year for each
point of diversion within an overlap group is summed,
- a full listing of the authorized place of use for all water rights within
the overlap group is developed, and
- the total recharge and reported acres irrigated for the overlap group is
distributed proportionally over the groups' total authorized places of use and
then distributed to the model grid cells, based on the location.
Additional specifics on the procedures for distributing recharge and acres
irrigated is contained in the attached document which details in the program's
inputs and outputs.
Almena Irrigation District
The only area in the model domain in Kansas with significant co-mingled lands
is the Almena Irrigation District of the Prairie Dog Creek sub-basin. In this
area, groundwater is often used to supplement the surface supply of the
Irrigation District. Procedures to determine the quantity of groundwater
pumping for purposes of the model data sets did not need to be changed since
they were determined based on water use records. However, distribution of
recharge and determination of acres irrigated were determined based on the
- A good approximation of the District's lands was developed using GIS and
available coverages. See Almena_qq01-02.xls for this listing of the
quarter-quarter tracts within the district. The listing may be refined in
- Total surface-water diversions were determined based on Bureau records.
- Total return flows due to surface-water diversions were developed based on
historic methods used by the RRCA.
- Groundwater points of diversion within the District boundary or within 0.5
miles outside of the District boundary were assumed to be co-mingled with the
District's surface water use. See PDsOverlappingWithAlmena.xls for this
- Rather than use the commingled model data files, we assigned the surface
water acres based on Almena's report first and then prorated the reported
groundwater acres within the boundary of the district so that total reported
irrigated acreage was correct. We believe the will yield an appropriate number
of irrigated acres in both the base run and the no-Kansas pumping run.
Recharge from other surface water irrigation use
The quantity of recharge from surface water uses was determined based on
reported use and system type. The recharge was distributed to the authorized
lands in the same manner as groundwater use.
Determination of non-irrigation uses less than 50 AF
As is discussed above, water rights which share either overlapping places of
use and/or overlapping points over diversions were placed in a common "overlap
groups" for purposes of developing the location of irrigation recharge and the
location of the irrigated acres. Non-irrigation uses were also placed in a
separate set of overlaps groups. Municipalities and industries should have
their water use within a common overlap group. Within the spreadsheet
RRCS_Overlap_Group_2003.xls, the page Non_Irr_Use_2003 has a full
listing of all non-irrigation reported use within the model domain, regardless
of quantity. A pivot table was built to summarize the reported non-irrigation
use by group. The page Non_Irr_Use_2003_gt_50AF has all the records from
the Non_Irr_Use_2003 page for which the overlap group has more than 50
AF of reported use. This page was used to determine the non-irrigation use over
Data Files provided
RRCS_Overlap_Groups_2003Final.xls provides the following data:
Note: The overlap groups numbers for irrigation and non-irrigation are
independent of one another and the reported non-irrigation use includes both
surface water and groundwater.
- Authorized acreage by overlap group for irrigation use, both surface water and groundwater (excluding Almena);
- Reported groundwater use by overlap group and point of diversion (PDIV_ID);
- Reported surface water use by overlap group and point of diversion (excluding Almena);
- Reported use by the Almena irrigation district;
- Total reported non-irrigation use for each overlap group numbers;
- Reported non-irrigation use by overlap group numbers and point of diversion.
Almena-qq01-02.xls includes data needed to develop recharge estimates
for the Almena Irrigation District including authorized place of use, reported
use and acreage, and an estimate of return flows (recharge).
PDsOverlappingWithAlmena.xls includes a listing of wells (PD's or points
of diversions) with overlaps with the Almena Irrigation District.
Precipitation Data Entry
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ET Data Entry
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