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Index/Organizations/San Francisco Public Utilities Commission

San Francisco Public Utilities Commission

Public agency of the City and County of San Francisco

Fact-Checks

2 results
Dec 21, 2025
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Does vitamin C powder added to water which has chloramine neutralize the chloramine?

Vitamin C in the form of ascorbic acid (or its salt sodium ascorbate) chemically neutralizes chloramine in water by reducing the chlorine moiety, and has been demonstrated in practical guides and util...

Jan 2, 2026

How much ascorbic acid (mg) is required per gallon to neutralize 1 ppm chloramine in tap water?

A narrow read of utility guides and practitioner how‑tos shows agreement that ascorbic acid neutralizes chloramine quickly, and that the stoichiometric practical dosages reported cluster between rough...