Question Statement:
A fully penetrating test well discharges steadily at $Q = 1800.0\text{ m}^3/\text{day}$ from a confined aquifer of uniform thickness $b = 25.0\text{ m}$. Steady-state drawdowns observed in two observation piezometers are $s_1 = 3.60\text{ m}$ at radial distance $r_1 = 15.0\text{ m}$ and $s_2 = 1.20\text{ m}$ at $r_2 = 60.0\text{ m}$. The transmissivity ($T$) of the confined aquifer in square meters per day ($\text{m}^2/\text{day}$) is ________ (round off to one decimal place). Take $\pi = 3.1416$.
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Pumping Well (Q = 1800 m³/d)
| Observation Well 1 (r1=15m, s1=3.6m)
| | Observation Well 2 (r2=60m, s2=1.2m)
| | |
═══════╪════════════════╪═════════════════╪═══════════════ Static Piezometric Surface
| \ s1 | |
| `--___ | |
| `----o-----------------o────────────── Drawdown Cone
| Aquifer Thickness b = 25m
═══════╧═════════════════════════════════════════════════ Impermeable Stratum
```