WSP01373

• File Number: 8112.600
• Description: Arkansas White Red Basins Interagency Committee - AWRBIAC -- Reports
• Basin: Arkansas
• Water Division: 2
• Date: 6/30/1957
• Title: 1956-57 Report of Arkansas White Red Basins -- Inter-Agency Committee
• Water Supply Pro - Doc Type: Report/Study

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that some of these phases of hydrologiC analysis can be achieved by
coordination field-level studies. Other phases, however, have a history
of unattained coordination which in large part rray be ascribed to dif-
ferent policies and planning procedures established by higher authority
in the several Federal investi~ting agencies, and consequently, are not
suscept1ble to resolution at field level. In view of the foregoing,
your coIlUllittee has reached the following conclusions:

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1. That bydrologic coordination with respect to items a, b, c,
k and n, discussed in Section I, can be resolved at local level. The
subject titles of the foregoing items are:

a. Collection of and agreement on factual data by watersheds
with respect to the pbysical factors which affect the rate,
amount and quality of runoff.

b. Determine the areal source of runoff within the watershed
and establish the runoff characteristics.

c. Establish a cr1tical dry period or periods for all sections
of a watershed.

k. Establish the relationships of water laws and rights to
water use and control development in hydrologic analyses.

n. Establish operational procedures both for projects exist-
ing and anticipated for the future to best serve all useful
purposes.

2. That hydrologic coordination with respect to 1tems d, e, f and g
must be resolved at Washington level. The subject titles of the foregoing
items are:

d. Establish the flood history of the watershed, including
I18gnitude and frequency of floods throughout the watershed,
and the origin and characteristics of the floods.

e. Establish uniform hydrologic factors for the watershed,
such as infiltration indices, times of runoff concentration,
travel times, channel losses, transportation losses, and
evaporation.

f. Develop uniform or commonly-acceptable hydrologic procedures
including frequency analysis, flood and water resource determina-
tions, flood routing, reservoir regulation and other hydrologic
analyses where differing approaches could affect the comprehensive
development of the watershed.

g. Adopt uniform approach to hydrologic criter1a for planning
and design such as storage allocation for flood control, spillway
design, safety factors.

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