Science – Society – Technology
From: Groundwater age and hydrothermalism of confined aquifers in the Argentine Pampean plain
Hydraulic occurrence | Depth (m) | Hydraulic conductivity (K) (m/d) | Effective porosity (ep) (%) | Hydraulic gradients (%) | Groundwater velocity (m/d) | |
---|---|---|---|---|---|---|
Unconfined aquifer | Up to 75–100 | 1–5 | 5–10 | 0.2–0.3 | 0.04–0.2 | |
Confined aquifer systems | A1 CAS | 120–200 | 2–8 | 15–20 | 0.2–0.3 | 0.03–0.12 |
A2 CAS | 225–350 | 5–10 | 20–30 | 0.1–0.3 | 0.025–0.1 |