Analysis of Development Methods for
Gravel Envelope Wells

Table of Contents

1.0.. INTRODUCTION ...................................................................................... 1
1.1   Purpose and Scope .............................................................................. 2
 
2.0 PLEASANT VALLEY GROUND-WATER BASIN .................................. 1
2.1   Hydrogeology ...................................................................................... 1
2.1.1   Shallow Aquifers .....................................................................
 1
2.1.2   Fox Canyon Aquifer ................................................................
 1
2.1.3   Grimes Canyon Aquifer ...........................................................
 2
2.2   Wells Used in the Study ....................................................................... 2
2.2.1   Pleasant Valley Water District Wells ........................................
 2
2.2.2   Other Wells .............................................................................
 2
 
3.0 COMPARISON OF WELL YIELDS ......................................................... 3
3.1   Specific Capacity per Foot of Screen .................................................... 3
3.2   Relationship of Specific Capacity to Aquifer .......................................... 3
3.3   Specific Capacity and Length of Well Screen ........................................ 3
 
4.0 SUMMARY AND CONCLUSIONS ......................................................... 4
4.1   Summary .............................................................................................. 4
4.2   Conclusions .......................................................................................... 4
 
5.0 APPENDIX ................................................................................................. 5
5.1   Method of Analysis ............................................................................... 5
5.1.1   Basic Equation of Ground-Water Flow .....................................
 5
5.1.2   Estimation of Aquifer Hydraulic Conductivity ............................
 5
5.1.3   Calculation of Specific Capacity per foot of Well Screen ...........
 5
5.2   Calculation of Specific Capacity per foot of Well Screen ........................ 6

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