Scientific Investigations Report 2008–5162
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5162
Version 1.1, December 2008
Table 2. Estimated results of monitoring well slug tests near Park Avenue stormwater control system, South Lake Tahoe, California.
[Sites are shown in figure 3. Abbreviations: ft, foot; ft/d, foot per day]
Site No. | Date of test | Initial water-level altitude (ft) |
Aquifer material at screened interval |
Mean displacement (ft) |
Number of tests |
Hydraulic conductivity (ft/d) |
|
---|---|---|---|---|---|---|---|
Mean | Range | ||||||
MW-194 | 06-07-06 | 6,292.2 | Sandy clay | 1.82 | 2 | 0.9 | 0.9–0.9 |
MW-196 | 06-06-06 | 6,231.7 | Medium sand | 1.67 | 2 | 0.3 | 0.3–0.4 |
MW-197 | 06-06-06 | 6,239.0 | Medium sand | 1.74 | 3 | 4 | 2–5 |
MW-198A | 06-07-06 | 6,231.1 | Medium sand | 1.80 | 2 | 0.8 | 0.6–1 |
MW-198B | 06-07-06 | 6,230.9 | Medium sand | 1.55 | 2 | 7 | 2–20 |
MW-199A | 06-07-06 | 6,230.9 | Medium sand | 0.90 | 3 | 20 | 20 |
MW-199B | 06-07-06 | 6,230.9 | Medium sand | 1.99 | 2 | 3 | 2–3 |
MW-201B | 06-06-06 | 6,230.2 | Medium sand | 1.05 | 4 | 8 | 6–10 |