Tacoma Water quality mechanic Craig Carrara monitors sodium hydroxide added to water from ground wells at the Hood Street Reservoir Groundwater Treatment Facility. Sodium hydroxide helps raise PH in water to stave off corrosion in pipes.
Tacoma Water quality mechanic Craig Carrara monitors sodium hydroxide added to water from ground wells at the Hood Street Reservoir Groundwater Treatment Facility. Sodium hydroxide helps raise PH in water to stave off corrosion in pipes. Lui Kit Wong lwong@thenewstribune.com
Tacoma Water quality mechanic Craig Carrara monitors sodium hydroxide added to water from ground wells at the Hood Street Reservoir Groundwater Treatment Facility. Sodium hydroxide helps raise PH in water to stave off corrosion in pipes. Lui Kit Wong lwong@thenewstribune.com

Q&A: Tacoma water bosses talk Flint and what’s different here

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