WSP10386

• File Number: 8210.470
• Description: Pacific Southwest Interagency Committee
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 2/1/1966
• Author: Unknown
• Title: Report of the Hydrology Subcommittee - Limitations in Hydrologic Data - As Applied to Studies of Water Control and Water Management - February 1966
• Water Supply Pro - Doc Type: Report/Study

vi

CONTENTS

COil1IlIon errors and lilnitations.--Continued.
Soil 'water. . . . . . . e,' . . . . . . . . . .". . . . . .
General concepts and "constsnts". . . . . . . .' . . . .
The simple -case . ': . . . . . . . . . . . . . . . .
Non-homogeneous conditionS in the field . . . . . .
Methods of measuring soil-water content ... . . . . .
Periodic sampling of the,~oil . . . . . . . . . . .
Neutron-scattering soil-watsr meter . . . . . . . .
Tensiometers . . . . . . .- . . . . . . . 0 0 ! . . 0
Electrical resistance of porous blocks . . . . . . .
Other methods ........ ..........
Station networks . . . . . . . . . . . . . . . . . .
Uses of data .. ....". . . . . . . . . . . . .
References cited . . . . . . " . . . . . . . . " . . . .
Ground water . . . . .. ........ '. .. .' . . . . . .
General considerations . . . . . . . . . . . . . . . . 0
Well and spring dimensions . . . . . . . .. .....
Water levels . . . . . . .,. . . . . . '. . . . " . . . .
Well logs .. . . . . ... . . . . . 0 . . . . . .
The visual log . . . . . . . . . . .. ..'....
The instrument log. ...............
The a,ample log .. .. . . . . . . . . . II . ..
Aquifer properties . . " . . 0 . . . ... . . . 0 II . 0 .
Laboratory determinations . . . . . . . . . . .
Field measurements . . . . . . . . . . . . . . . . .
Basin-wide budgets . . . . . ., . . . . . . . . . . . . .
storage . . . . .' . . . ',' . . . . . . . . . . . .
Dispersed discharge ..... . , . . . . . . . . .
Withdrawals II" . II . II . . Il . . . II . II . . . ..
Selected references .. ....".. It . . . " . " .
Chemical, physical, and biological quality . . . . . . . . .
General considerations . . . .. . Il . . . . . . II II . II .
Sampling . . It , . . . . . . . It " . II . II . 0 . " . . II
Selection of si tea . . . .. ....... .. . . .
Equipment and procedures .. . . . . . . . . . . . . ..
Accuracy of analytical data ..... . . . . . . . . .
Use and interpretation of water-quality records ....
References ci'ted . " . . . . . . . . . . . . . . . . . .
Movement and 'deposition of sediment .. . . . . . . . . . .
Field measurements . . . . . " . . . . . ~ . . . . . . .
Suspended sediment discharge . . . . . . . . .. . .
Bedload ... . . . . .'.' .' . . . . . . . . . . . . 0
Deposi ts in reservoirs . . . . " . . . . . . .. . . .
Deposits on fans and flOod plains .........
Sediment yield . .' . . . . . . . . . . . . . . . . . . .
General a'spects ..................
Relation to suspended load . . . . . . . . .'. . . .
Relation to deposits in r~s~rvoirs . . . . . . . . .

Page

87
87
87
89
91
91
92
93,
94
94
94
95
96
97
97
98
99
102
102
105
1<:6
107
107
108
109
109
110
110
112
114
114
116
116
118
120
122
123
125
125
125
126
127
,128
128
128
129
129