WSP01018

• File Number: 8059
• Description: Section D General Studies-State Water Plan
• State: CO
• Date: 4/1/1973
• Author: Howe Udis Kreider
• Title: State Water Plan Economic Base-An Economic Hydrologic Air Pollution Model of the Upper Main Stem Basin Colorado River
• Water Supply Pro - Doc Type: Report/Study

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UNIVERSITY OF COLORADO

BOULOER, COLORADO 80302

OI:PARTMl!NT 0... I:CONOMlce

RECEIVED
JUN 11 1973

June 5. 1973

Mr. T. W. TenEyck, Director
Department of Natural Resources
State of Colorado
1845 Sherman
Denver, Colorado

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I am writing as a follow-up to our two recent phone conversations regarding f~
the economic-environmental models of the Upper' Colorsdo Basin which have been . ~~
developed here at C.U. by Bernard"Udis, Jan Kreider, and myself. The developmental ~
work done to date over the past 18 months has been sponsored by the Economic Develop- ~~
ment Administration. They intended to have our group continue on with a sequence ~
of studies of the economic and environmental impacts of alternative development ~
patterns for the Upper Colorado Basin, some of which EDA itself might be promoting.
With the phasing out of EDA, we find ourselves with some major tools of analysis
ready to be applied to policy related questions, but no agency with which to
collaborate.

COLO. WATER
CONSERVATION BOARD

jun 8' \m'3;
DEPII.RTMENT or.
NP-.TURP-.L RESOURCES

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Dean Mr. TenEyck:

There are models for the Upper Main Stem, the Green, and the San Juan River
Basins. Each model consists of 3 component parts:

1. An input-output model of the basin economy, showing the interdependence
of the various sectors of the basin's economy, and permitting calculations
of direct and indirect economic impacts of new development;

2. A set of hydrologic-salinity models covering in total the same basin as
the economic model, but in greater detail, for purposes of calculating
patterns of water withdrawals, consumptive uses, and changes in the
dissolved solids ("salt") content of surface and ground waters. Changes
in economic activities from agriculture to manufacturing to households
are translated into their effects on monthly hydrologic flows and salt
loads.

3. A set of air pollution models capable of tracing for each major point
source the seasonal background levels and extreme episodes of particulate
pollution, sulphur dioxide, oxides of nitrogen, etc. The calculations
are based on the detailed specifications of existing point sources in
Wyoming, Colorado, Utah, Arizona, and New Mexico.

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