About Wastewater

 Facts & Figures

Wastewater Collection And Treatment

Collection, transport, treatment, reuse and disposal of wastewater from Los Angeles, some county areas and nine other cities. Planning for capital improvements, financial management of the Wastewater Program, and review & processing of sewer service charge adjustments.

Sewage collection and treatment facilities:

• Sewage collection system
• Pipelines - 6,520 miles
• Pump plants - 54
• No. of personnel - 270

Treatment Plants

• Hyperion Treatment Plant

  Daily flow - 362 million gal/day (mgd) 450 mgd capacity
  Treatment - Full secondary, solids handling
  No. of personnel - 277

• Tillman Water Reclamation Plant

  Daily flow - 67 mgd/80 mgd capacity.
  Treatment - Tertiary; Title 22 standards (for reclaimed water reuse).
  No. of personnel - 43

• LA/Glendale Water Reclamation Plant

  Daily flow - 20 mgd/20 mgd capacity.
  Treatment - Advanced secondary; Title 22 standards (for reclaimed water reuse).
  No. of personnel - 16

• Terminal Island Treatment Plant

  Daily flow - Design 30 mgd - Averaging 17.5 mgd
  Treatment -Full secondary and tertiary treatment with  up to 5 mgd advanced water treatment capability.

  No. of personnel - 66

• Maintenance Support of Treatment Plants

  No. of personnel - 453

• Biosolids (sewage sludge) Management

• 480 dry tons per day produced at Terminal Island and Hyperion
• 280 dry tons (58%) processed at Terminal Island and Hyperion
• 200 dry tons (42%) beneficially reused through three private contracts for compost
• San Joaquin (Composting) or land application (Bio Gro and Gardner-Arciero) 20 wet tons processed per day at the Griffith Park composting facility.

Enforcement of federal and City industrial waste pretreatment requirements

• No. of permittees - 7,000
• No. of personnel - 110

Support for the Wastewater Program

(environmental monitoring, engineering plant and equipment maintenance, and training)

• No. of personnel - 319