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City of Fillmore Facing a Chloride Pollution Problem

City of Fillmore Facing a Chloride Pollution Problem. July 7, 2008. The Problem. Well water chloride: 55 to 35 mg/L Human use: +25 mg/L Brine Discharging Softeners: +57 mg/L Average Chloride Concentration: 137 mg/L Chloride Limit: 100 mg/L. Path To A Solution.

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City of Fillmore Facing a Chloride Pollution Problem

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  1. City of FillmoreFacing a Chloride Pollution Problem July 7, 2008

  2. The Problem • Well water chloride: 55 to 35 mg/L • Human use: +25 mg/L • Brine Discharging Softeners: +57 mg/L • Average Chloride Concentration: 137 mg/L • Chloride Limit: 100 mg/L

  3. Path To A Solution • Chloride Source Assessment • Brine Discharging Water Softener Prohibition Ordinance, In Effect Since May 2005 • Water Softener Buy Back Program Beginning Fall 2008 • Build water softening Plant?

  4. Chloride Source Study • Evaluated water supply, industrial, influent and effluent data • Mass balance calculation to determine water softener load • Check water softener contribution based on Fillmore hardness, Fillmore demographics, regional surveys • Second check using 24 hour profile data

  5. Fillmore Influent Chloride Sources

  6. WWTP INFLUENT PROFILE

  7. Drinking Water Source Data

  8. City Council Chloride Reduction Plan • Switching to Ultra Violet disinfection in new Water Recycling Plant • Ban new water softeners, Effective May 2005 • Persuade residents to remove brine discharging water softeners

  9. Fillmore is not alone! Photo from Sacramento.

  10. Summary of Chloride Source Assessment • Largest controllable sources • Water softeners • Treatment plant chlorination • Brine Discharging Softeners must be eliminated or dramatically reduced

  11. Customer Outreach • Asked business to stop selling rock salt • Prohibited businesses from using brine discharging softeners • Starting softener buyback program Fall 2008

  12. Will We Comply by 2013? • If residents will unplug their brine discharging water softeners we will! • Write letters of support for AB 2270 cosponsored by Assemblywoman Audra Strickland allowing communities violating salt limits to prohibit the use of brine discharging water softeners. • THE END

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