SPDSS_CUWBScope_20020916

• Title: SPDSS Phase 1 & 2 - Consumptive Use ans Water Budget Component
• Description: Scope of Work for the Consumptive Use and Water Budget component of the South Platte Decision Support System.
• Decision Support - Doc Type: Scope of Work
• Date: 9/16/2002
• DSS Category: Consumptive Use
• DSS Category: Water Budget
• DSS: South Platte
• Basin: South Platte
• Contract/PO #: C153953
• Bill Number: SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
• Prepared By: CWCB

Abbreviations -
Abbreviation Description
CWCB Colorado Water Conservation Board
CU Consumptive Use
SPDSS South Platte Decision Support System
SEO State Engineer's Office
FY Fiscal Year
Basin Definitions - South Platte River Basin -area included in the SEO's Division 1, except
for the Republican River drainage.
North Platte River Basin -area included in the SEO's Water District 47 in
Division 6.
Ground Water Model Area -area defined by active cells within the State's SPDSS
ground water model
Memorandum Submittal Process
Technical memoranda will be prepared using a standard SPDSS format to be provided by the
State's Project Manager. Draft technical memoranda will be initially submitted to the State in
electronic format. The State will have up to 6 weeks to review memoranda and provide
comments and questions to the CU contractor. The State's comments will be addressed and both
paper copies and an electronic version of the final Memoranda will be submitted. In general,
technical memoranda will be included in the final Historic Consumptive Use Report as
appendices.
Deliverable Formats
All deliverables will be consistent with the DSS design, including use of data structures,
formats, and standards that are being developed by the Database DSS team (e.g. all maps will be
provided in ArcView format). All deliverables provided under this Scope of Work will use DSS
standards for memoranda, reports, data, GIS, program documentation, etc.
Task 1 -Research and Identify Appropriate Study Period
Background:
The SPDSS Feasibility Study recommended a study period of 1950 to the current year based on
the availability of digitized streamflow and diversion records. This study period should be further
refined based on the data being digitized as part of the SPDSS and the long-term hydrology of
the basin.
Objective:
To identify the best study period to capture the variability in the hydrologic conditions which
have occurred in the South Platte and North Platte River basins while maintaining cost-effective
modeling efforts.
Approach:
1.1 Quantify the range of hydrologic events included (flood and drought events) in the
proposed 1950 to 2002 study period. The study period should include wet, dry, and
SPDSS Consumptive Use and Water Budget Component 3