Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 671 - MAXIMUM SETBACK ZONE FOR COMMUNITY WATER SUPPLY WELLS
Subpart C - REQUESTS FOR AGENCY REVIEW AND CONFIRMATION
Appendix A - Volumetric Flow Equation
Universal Citation: 35 IL Admin Code ยง A
Current through Register Vol. 48, No. 38, September 20, 2024
For unconfined unconsolidated, or unconfined non-fractured bedrock aquifers the lateral radius of influence can be calculated as follows:
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|
Sand |
0.21 |
Sandstone |
0.06 |
|
Gravel |
0.19 |
Limestones: |
|
|
Sand & Gravel |
0.15 |
Primary dolomites |
0.18 |
|
Secondary dolomites |
0.18 |
||
|
Figure A-1 |
|||
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