9388

• UCREFRP Catalog Number: 9388
• Author: Maddux, H. R., W. R. Noonan and L. A. Fitzpatrick.
• Title: Overview of the Proposed Critical Habitat Designation for the Four Colorado River Endangered Fishes.
• USFW Year: 1993.
• USFW - Doc Type: Salt Lake City.
• Copyright Material: NO

Sector

Table 5. Industrial Sectors used in Economic Analysis

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Industry

Livestock
Other Crops
Livestock Feed
Other Agriculture
Non-petroleum Mining
Petroleum and Natural Gas Mining
Construction
Combined Manufacturing
Food Products
Wood Products
Petroleum and Coal Products
Transportation, Communication, and Utilities
Recreational Services
Electric Power
Wholesale and Retail Trade
Finance, Insurance, and Real Estate
Household and Business Services
. Local Amusements
Health, Education, and Social Services
Government Industries

Flow Activities

A critical element of the analysis was the determination of the current hydrologic conditions
in the Basin. This effort was undertaken by the Service and the Bureau of Reclamation. The
current conditions were determined by examining a historical set of flows for the years 1967
through 1985 at 10 United States Geological Survey (USGS) gaging stations. Next, flows for
recovery of the fishes were projected as well as depletions for future activities with and
without endangered fishes. These projections took into account both listing and proposed
critical habitat designations. An illustration of the hydrograph for one gaging station
(Colorado River at Cisco, Utah) is shown in Figure 2. The details of this analysis are
available in Chapter II-6 of Volume II of the Economic Analysis.

The hydrologic analysis formed the basis for the without fish and the with fish scenarios.
There are four hydrologic scenarios and these can be discussed in the context of Figure 2:

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