For contact information, visit the Directory...


Tony Rubio,

District Manager/Chief Plant Operator

  • SWRCB Grade V WWTP Operator
  • CWEA Bio-solids Lands Application Management
  • CWEA Environmental Compliance Inspector I
  • CWEA Laboratory Analyst I
  • CWEA Plant Maintenance Technologist I
  • CWEA Collections System Maintenance I
  • 8 Years w/ SD5
  • 15 years of experience in the Wastewater Industry

Tim O’Day,

Sr. WWTP Operator & Lab Director

  • SWRCB Grade III WWTP Operator
  • CWEA Laboratory Analyst I
  • CWEA Plant Maintenance Technologist I
  • CWEA Collections System Maintenance I
  • 11+ Years w/ SD5

Stephen Driscoll,

Sr. WWTP Operator & Safety Coordinator

  • SWRCB Grade III WWTP Operator
  • CWEA Laboratory Analyst I
  • CWEA Plant Maintenance Technologist I
  • CWEA Collections System Maintenance I
  • 11 Years w/ SD5

Rulon (Casey) Cottrell,

WWTP Operator & Pollution Prevention Coordinator

  • SWRCB Grade III WWTP Operator
  • CWEA Plant Maintenance Technologist I
  • CWEA Collections System Maintenance I
  • CMSA Public Education Committee Member
  • 2+ Years w/ SD5

Robin Dohrmann

Office Manager

  • Graduated from Dominican U of California, BA
  • 20 years in Operations & Administration
  • 10 years in Finance & Office Management
  • 3 Years w/ SD5

Dan LaTorre,

Sr. WWTP Maintenance & Collections System Technician

  • CWEA Collections System Maintenance I
  • CWEA Trench & Excavation Training
  • Certified Disaster Preparedness Training
  • ACES Certified Damage Prevention Specialist
  • Underground Service Alert Training
  • 11 Years w/ SD5

John Rosser

WWTP Maintenance & Collections System Technician - Permits & Construction Inspector

  • SWRCB Grade I WWTP Operator
  • CWEA Trench & Excavation Training
  • Certified Disaster Preparedness Training
  • Underground Service Alert Training
  • FOG (Fats, Oils & Grease)/Commercial Greasetrap Training
  • 16 Years w/ SD5

Joseph Triola

WWTP Maintenance & Collections System Technician

  • CWEA Collections System Maintenance I
  • CWEA Safety Training
  • IBEW Electrician , 30 years of experience
  • 3 Years w/ SD5

Sewer Emergencies

24 Hours

(415) 779-9048

Dial 9-1-1 if public health or property is threatened.

Our Mission

Sanitary District No.5 of Marin County is a special District, which while meeting or exceeding all applicable local, state and federal laws and regulations, is dedicated to the protection of public health and the environment through effective and economical collection, conveyance, treatment and disposal of wastewater.