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Piezometers. Introduction A. Piezometer (def): a non-pumping well that is used to measure the elevation of the water table or the potentiometric surface. Introduction

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Piezometers


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slide2
Introduction

A. Piezometer (def): a non-pumping well that is used to measure the elevation of the water table or the potentiometric surface

slide3
Introduction

A. Piezometer (def): a non-pumping well that is used to measure the elevation of the water table or the potentiometric surface

slide4
Introduction

A. Def: a non-pumping well that is used to measure the elevation of the water table or the potentiometric surface

B. Measures hydraulic head, or the total energy flowing through an aquifer.

slide5
II. Morphology

A. The criteria

1. Consists of a tube or pipe

2. Must be sealed along its entire length

slide6
II. Morphology

A. The criteria

1. Consists of a tube or pipe

2. Must be sealed along its entire length

3. Must be open to water flow at bottom

and open to atmosphere at top

slide7
II. Morphology

A. The criteria

1. Consists of a tube or pipe

2. Must be sealed along its entire length

3. Must be open to water flow at bottom

and open to atmosphere at top

4. The intake is usually slotted or

screened pipe

slide8
II. Morphology

A. The criteria

1. Consists of a tube or pipe

2. Must be sealed along its entire length

3. Must be open to water flow at bottom

and open to atmosphere at top

4. The intake is usually slotted or

screened pipe

B. Diagram

slide9

6

B. Diagram

1. Consists of a tube or pipe

2. Must be sealed along its entire length

3. Must be open to water flow at bottom and open to atmosphere at top

4. The intake is usually slotted or

screened pipe

5

3

4

3

2

1

slide11
IV. Uses of Piezometers

A. In general….

v, Q, K, dl, dh, S, Ss, T

slide12
IV. Uses of Piezometers

A. In general….

B. Spaced Piezometers

slide13
IV. Uses of Piezometers

A. In general….

B. Spaced Piezometers

C. Nested Piezometers

slide14
IV. Uses of Piezometers

A. In general….

B. Spaced Piezometers

C. Nested Piezometers

D. Equipotential and Flow Lines

slide16
IV. Uses of Piezometers

A. In general….

B. Spaced Piezometers

C. Nested Piezometers

D. Equipotential and Flow Lines

E. Relationships among h, z, and Ψ

slide17
IV. Uses of Piezometers

E. Relationships among h, z, and Ψ

slide18
IV. Uses of Piezometers

E. Relationships among h, z, and Ψ

slide19
IV. Uses of Piezometers

E. Relationships among h, z, and Ψ