WSP11669

• File Number: 8149.100
• Description: Miscellaneous Small Projects and Project Studies - NRCS-Ft Lyon Canal Co Limestone Graveyard Creeks
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 9/1/1996
• Author: Bent Soil Conservati
• Title: Limestone-Graveyard Creeks Watershed Bent County Colorado Prowers County Colorado Watershed Plan and Environmental Assessment
• Water Supply Pro - Doc Type: EIS

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thus proJl~~~ a similar
the area.

impact on the social economic conditions in

The known cultural resources in the area would not be impacted.

In analyzing the beneficial effects to the project area and off-site,
it is necessary to make every effort to address the sponsors concerns.
These concerns include protection of the water resource from pollution,
protection of the soil resource from irrigation induced erosion and
effective irrigation water application. Irrigation water management
is an essential component in addressing these concerns. However, the
on-farm irrigation water conveyance and application systems must also
be improved to achieve an adequate level of irrigation water
management.

The benefits previously mentioned are directly correlated to the degree
of irrigation water management attained in the project area. Sponsors
concerns and objectives cannot be met by management practices alone
even if cost shared. Meeting water quality standards could not be
reached with this alternative. The effects shown in the summary and
comparison of the candidate plans in Table D used a 20% participation
level by farmers.

Sponsors and farmers input was also obtained on a participation rate
that would actually occur if technical assistance were available with
out cost sharing management practices. It was their opinion that due
to the risk and uncertainty of applying just management practices, the
participation rate would actually be in 20-25% range. The benefits
derived from this alternative were therefore be proportionally reduced.

Alternative 3. Management Plus Enduring Irrigation System Improvements
(NED and recommended plan)

149,610 Feet of concrete ditch lining,
213,710 Feet of irrigation pipeline,
Mitigation practices including (10 multi-purpose ponds and 20 acres of
wetland development),
3,300 Acres of land leveling,
56 Water control structures, and appurtenances, for irrigation
pipeline and lined ditch systems,
Management practices which include; 26,700 acres of nutrient
management, B,BOO acres of conservation tillage, crop residue use,
and polyacrylamides; 26,700 acres of pest management and 26,700
acres of irrigation water management.

Costs - Total Project
PL - 566
Other

$5,326,000
$3,056,500
$2,269,500

See Table 1 for further cost breakdown and Appendix B for map of area
to be treated.

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