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City of Frisco Engineering Standards

City of Frisco Engineering Standards

City of Frisco Engineering Standards

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<strong>Engineering</strong> <strong>Standards</strong><br />

Conditions Requiring Corrosion Protection System<br />

Soil Characteristics<br />

Conditions Requiring<br />

Corrosion Protection System<br />

Chloride<br />

>500 ppm<br />

Sulfate<br />

>2,000 ppm<br />

Soil pH ≤ 5.5 or >8.5<br />

Soil/Water Resistivity<br />

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