BOARD01555

• Board Meeting Date: 11/23/1998
• Description: WSP Section - Colorado River Basin Issues - Colorado River Basin Salinity Control Program
• Board Meetings - Doc Type: Memo

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CWCB Agenda Item 17.h.,
November 23-24, 1998,
Page 4 of 4

of the "aquatic resource". The attached table summarizes the evaluations that make up the
Assessment. All of the mainstem Arkansas from Leadville to the Kansas state line plus Fountain
Creek were assigned to Category 1, "in need ofrestoration". The Eagle, Blue, Colorado below
Glenwood, Dolores/San Juan, and Lower Gunnison were also placed in Category 1. The CRBSCP
will likely fare well under the Assessment since all existing project areas are in Category 1,
essentially by definition since impacts on national salinity standards was a criteria used for inclusion
in Category I. With over half of the 94 units being assigned to category 4, "insufficient data" its
not clear how useful the Assessment will be or how much reliance agencies will place on it.

BASIN HYDROLOGIC UNITS IN CATEGORY TOTAL
UNITS
CAT 1 CAT 2 CAT 3 CAT 4 IN
[degraded] [sustain] [pristine] [lack data] BASIN
North Platte 0 0 1 2 3
South Platte 6 1 0 11 18
Republican I 0 0 10 11
Arkansas 5 0 0 10 15
Cimmarron/Canadian 0 0 0 5 5
Rio Grande 6 0 0 1 7
Colorado 3 1 1 1 6
Gunnison 2 1 1 2 6
Dolores 3 I 0 1 5
GreenlY arnpalWhite 2 3 2 2 9
San Juan 3 1 0 4 8
TOTAL 31 8 5 50 94

RECOMMENDATION

Staff makes the no recommendations, these items are informational only.

cc: David Robbins
David Holm
Jack Barnett
Dave Merritt

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