SUBTITLE F: PUBLIC WATER SUPPLIES
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 671 MAXIMUM SETBACK ZONE FOR COMMUNITY WATER SUPPLY WELLS
SECTION 671.TABLE B WELL FUNCTIONS FOR UNCONFINED OR WATER TABLE AQUIFERS
Section 671.TABLE B Well Functions for Unconfined or Water Table Aquifers
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1/uA |
G = 0.001 |
G = 0.01 |
G = 0.06 |
G = 0.2 |
G = 0.6 |
G = 1.0 |
G = 2.0 |
G = 4.0 |
G = 6.0 |
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4.0x10 -1 |
2.48x10 -2 |
2.41x10 -2 |
2.30x10 -2 |
2.14x10 -2 |
1.88x10 -2 |
1.70x10 -2 |
1.38x10 -2 |
9.33x10 -3 |
6.39x10 -3 |
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8.0x10 -1 |
1.45x10 -1 |
1.40x10 -1 |
1.31x10 -1 |
1.19x10 -1 |
9.88x10 -2 |
8.49x10 -2 |
6.03x10 -2 |
3.17x10 -2 |
1.74x10 -2 |
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1.4x100 |
3.58x10 -1 |
3.45x10 -1 |
3.18x10 -1 |
2.79x10 -1 |
2.17x10 -1 |
1.75x10 -1 |
1.07x10 -1 |
4.45x10 -2 |
2.10x10 -2 |
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2.4x100 |
6.62x10 -1 |
6.33x10 -1 |
5.70x10 -1 |
4.83x10 -1 |
3.43x10 -1 |
2.56x10 -1 |
1.33x10 -1 |
4.76x10 -2 |
2.14x10 -2 |
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4.0x100 |
1.02x100 |
9.63x10 -1 |
8.49x10 -1 |
6.88x10 -1 |
4.38x10 -1 |
3.00x10 -1 |
1.40x10 -1 |
4.78x10 -2 |
2.15x10 -2 |
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8.0x100 |
1.57x100 |
1.46x100 |
1.23x100 |
9.18x10 -1 |
4.97x10 -1 |
3.17x10 -1 |
1.41x10 -1 |
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1.4x101 |
2.05x100 |
1.88x100 |
1.51x100 |
1.03x100 |
5.07x10 -1 |
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2.4x101 |
2.52x100 |
2.27x100 |
1.73x100 |
1.07x100 |
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4.0x101 |
2.97x100 |
2.61x100 |
1.85x100 |
1.08x100 |
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8.0x101 |
3.56x100 |
3.00x100 |
1.92x100 |
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1.4x102 |
4.01x100 |
3.23x100 |
1.93x100 |
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2.4x102 |
4.42x100 |
3.37x100 |
1.94x100 |
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4.0x102 |
4.77x100 |
3.43x100 |
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8.0x102 |
5.16x100 |
3.45x100 |
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1.4x103 |
5.40x100 |
3.46x100 |
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2.4x103 |
5.54x100 |
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4.0x103 |
5.59x100 |
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8.0x103 |
5.62x100 |
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1.4x104 |
5.62x100 |
3.46x100 |
1.94x100 |
1.08x100 |
5.07x10-1 |
3.17x10-1 |
1.41x10-1 |
4.78x10-2 |
2.15x10-2 |
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1/uB |
G = 0.001 |
G = 0.01 |
G = 0.06 |
G = 0.2 |
G = 0.6 |
G = 1.0 |
G = 2.0 |
G = 4.0 |
G = 6.0 |
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4.0 x 10-4 |
5.62 x 100 |
3.46 x 100 |
1.94 x 100 |
1.09 x 100 |
5.08 x 10-1 |
3.18 x10-1 |
1.42 x 10-1 |
4.79 x 10-2 |
2.15 x 10-2 |
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8.0 x 10-4 |
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4.80 x 10-2 |
2.16 x 10-2 |
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1.4 x 10-3 |
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4.81 x 10-2 |
2.17 x 10-2 |
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2.4 x 10-3 |
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4.84 x 10-2 |
2.19 x 10-2 |
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4.0 x 10-3 |
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5.08 x 10-1 |
3.18 x 10-1 |
1.42 x 10-1 |
4.78 x 10-2 |
2.21 x 10-2 |
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8.0 x 10-3 |
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5.09 x 10-1 |
3.19 x 10-1 |
1.43 x 10-1 |
4.96 x 10-2 |
2.28 x 10-2 |
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1.4 x 10-2 |
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5.10 x 10-1 |
3.21 x 10-1 |
1.45 x 10-1 |
5.09 x 10-2 |
2.39 x 10-2 |
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2.4 x 10-2 |
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5.12 x 10-1 |
3.23 x 10-1 |
1.47 x 10-1 |
5.32 x 10-2 |
2.57 x 10-2 |
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4.0 x 10-2 |
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5.16 x 10-1 |
3.27 x 10-1 |
1.52 x 10-1 |
5.68 x 10-2 |
2.86 x 10-2 |
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8.0 x 10-2 |
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1.09 x 100 |
5.24 x 10-1 |
3.37 x 10-1 |
1.62 x 10-1 |
6.61 x 10-2 |
3.62 x 10-2 |
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1.4 x 10-1 |
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1.94 x 100 |
1.10 x 100 |
5.37 x 10-1 |
3.50 x 10-1 |
1.78 x 10-1 |
8.06 x 10-2 |
4.86 x 10-2 |
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2.4 x 10-1 |
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1.95 x 100 |
1.11 x 100 |
5.57 x 10-1 |
3.74 x 10-1 |
2.05 x 10-1 |
1.06 x 10-1 |
7.14 x 10-2 |
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4.0 x 10-1 |
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1.96 x 100 |
1.13 x 100 |
5.89 x 10-1 |
4.12 x 10-1 |
2.48 x 10-1 |
1.49 x 10-1 |
1.13 x 10-1 |
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8.0 x 10-1 |
5.62 x 100 |
3.46 x 100 |
1.98 x 100 |
1.18 x 1010 |
6.67 x 100 |
5.60 x 10-1 |
3.57 x 10-1 |
2.66 x 10-1 |
2.31 x 10-1 |
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1.4x 100 |
5.63 x 100 |
3.47 x 100 |
2.01 x 100 |
1.24 x 100 |
7.80 x 10-1 |
6.42 x 10-1 |
5.17 x 10-1 |
4.45 x 10-1 |
4.19 x 10-1 |
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2.4 x 100 |
5.63 x 100 |
3.49 x 100 |
2.06 x 100 |
1.35 x 100 |
9.54 x 10-1 |
8.50 x 10-1 |
7.63 x 10-1 |
7.18 x 10-1 |
7.03 x 10-1 |
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4.0 x 100 |
5.63 x 100 |
3.51 x 100 |
2.13 x 100 |
1.50 x 100 |
1.20 x 100 |
1.13 x 100 |
1.08 x 100 |
1.06 x 100 |
1.05 x 100 |
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8.0 x 100 |
5.64 x 100 |
3.56 x 100 |
2.31 x 100 |
1.85 x 100 |
1.68 x 100 |
1.65 x 100 |
1.63 x 100 |
1.63 x 100 |
1.63 x 100 |
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1.4 x 101 |
5.65 x 100 |
3.63. x 100 |
2.55 x 100 |
2.23 x 100 |
2.15 x 100 |
2.14 x 100 |
2.14 x 100 |
2.14 x 100 |
2.14 x 100 |
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2.4 x 101 |
5.67 x 100 |
3.74 x 100 |
2.86 x 100 |
2.68 x 100 |
2.65 x 100 |
2.65 x 100 |
2.64 x 100 |
2.64 x 100 |
2.64 x 100 |
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4.0 x 101 |
5.70 x 100 |
3.90 x 100 |
3.24 x 100 |
3.15 x 100 |
3.14 x 100 |
3.14 x 100 |
3.14 x 100 |
3.14 x 100 |
3.14 x 100 |
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8.0 x 101 |
5.76 x 100 |
4.22 x 100 |
3.85 x 100 |
3.82 x 100 |
3.82 x 100 |
3.82 x 100 |
3.82 x 100 |
3.82 x 100 |
3.82 x 100 |
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1.4 x 102 |
5.85 x 100 |
4.58 x 100 |
4.38 x 100 |
4.37 x 100 |
4.37 x 100 |
4.37 x 100 |
4.37 x 100 |
4.37 x 100 |
4.37 x 100 |
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2.4 x 102 |
5.99 x 100 |
5.00 x 100 |
4.91 x 100 |
4.91 x 100 |
4.91 x 100 |
4.91 x 100 |
4.91 x 100 |
4.91 x 100 |
4.91 x 100 |
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4.0 x 102 |
6.16 x 100 |
5.46 x 100 |
5.42 x 100 |
5.42 x 100 |
5.42 x 100 |
5.42 x 100 |
5.42 x 100 |
5.42 x 100 |
5.42 x 100 |
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8.0 x 102 |
6.47 x 100 |
6.11 x 100 |
6.11 x 100 |
6.11 x 100 |
6.11 x 100 |
6.11 x 100 |
6.11 x 100 |
6.11 x 100 |
6.11 x 100 |
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1.4 x 103 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
6.67 x 100 |
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2.4 x 103 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
7.21 x 100 |
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4.0 x 103 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
7.72 x 100 |
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8.0 x 103 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
8.41 x 100 |
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1.4 x 104 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
8.97 x 100 |
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2.4 x 104 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
9.51 x 100 |
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4.0 x 104 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
1.94 x 101 |
SOURCE: Adapted from SP Neuman Water Resources Research 11(1985)329-42.