Introduction to Corrosion Control - LearnH2O

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Why Corrosion Control? 10 Topics

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1975 Lead Regulations

Corrosion Pre-1990’s

History of Lead in Plumbing

Safe Blood Level

The History of Copper in Plumbing

Safe Blood Level

Lead and Copper Rule 11 Topics

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Lead and Copper Rule

Initial Monitoring

Initial Sampling

Water Quality Parameter Testing

Lead and Copper Sampling Protocol

Analytical Methods

Optimal Corrosion Control

Feasibility Study

Lead Service Line Replacement

Reduced Monitoring

Review Questions

What Causes Corrosion? 10 Topics

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Source Water Effects on Rate of Corrosion

The Chemistry of Water

pH and Carbon Dioxide

Neutralizing Carbonic Acid

pH and Lead Solubility

pH and Langelier Saturation Index

Electrochemical Cell 6 Topics

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Galvanic Corrosion

Sources of Lead and Copper

Minimizing Lead and Copper Exposure

Review Questions

Corrosion Control Treatment 8 Topics

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Influence of Alkalinity

Chemical Characteristics

Personal Safety Protection for Caustic Soda

Basic Equipment

Impacts and Constraints

Choosing a Chemical 6 Topics

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Picking a Phosphate

Orthophosphates

Feed Considerations

Ortho/Poly Blends

Review Questions

Corrosion Math 9 Topics

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Mixing a Percent Solution

Changing Percent Concentration

Calculating Weight of Chemical

Weight of Active Ingredient

Liquid Feed Using a Percent Strength

Determining Gallons Used

Review Questions