Ground Water, Guest Speaker Part 1, 2-2-11

Ground Water Guest - I Ground water water that saturates permeable zones a Soil horizons i Organic horizon(Betos zone the zone above the saturated

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I. Ground water: water that saturates permeable zones a. Soil horizons: i. Organic horizon (Betos zone, the zone above the saturated water zone [the water table]) ii. Top soil (Betos) iii. Subsoil (Saturated) iv. Regolith (Saturated) v. Bedrock (impermeable) vi. Below bedrock, usually very good drinking water (but can be too saline, and sometimes people inject contaminated water into this saline zone) b. Inorganic and Organics have a high affinity for organics II. If the headwater is higher than where the wellhead is, you don’t even need to pump it. III. Perched water table: it is “hung up”, not getting replenished very quickly, and if it is contaminated it is hard to fix, they’re easy to overdraft (pulling water out faster than its being replenished) a. In order to combat overdrafting, they put infiltration galleries, dig a hole nearby and put used water in it so it can recharge the aquifer IV. Most ground-water is used for irrigation (56k mill), then public supply (16),
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This note was uploaded on 03/10/2011 for the course ETX 102A taught by Professor Ronaldtjeerdema during the Winter '10 term at UC Davis.

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Ground Water Guest - I Ground water water that saturates permeable zones a Soil horizons i Organic horizon(Betos zone the zone above the saturated

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