Southwest Regional Office Staff

Physical Address:

Southwest regional counties

Southwest Drinking Water Operations
111 Israel Road S.E.Fifth floor
Tumwater, WA 98501

Map with driving directions

Mailing Address:
Southwest Drinking Water Operations
Post Office Box 47823
Olympia, WA 98504-7823

Main Phone: 360-236-3030
FAX: 360-236-3029
TTY: Relay Service 1-800-833-6388

Information and Technical Assistance

Our office is open Monday through Friday from 8 a.m. to 5 p.m. Please direct all general inquiries to our main line at 360-236-3030. Staff are available to assist with most questions immediately. As necessary, other questions will be referred to the appropriate staff for response.

The Southwest Regional Office regulates and provides technical assistance to over 2,266 Group A public water systems serving approximately 1,521,252 people in the following counties: Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Kitsap, Lewis, Mason, Pacific, Skamania, Thurston, Wahkiakum

Andy Anderson, P.E., Regional Manager, 360-236-3025

Manages the Southwest Regional Office. Supervises Program Staff.

Jocelyne Gray, P.E., Assistant Regional Manager, 360-236-3024

Supervises Regional Engineers and Planners.

Debbie Phillips, Office Manager, 360-236-3023

Supervises the Regional Administrative Staff. Manages region's records and public disclosure.

Engineering Staff

Regional engineering Staff are responsible for the implementation of the state's drinking water engineering program in assigned counties. They conduct sanitary surveys and special purpose investigations of public water systems and promote needed water facility improvements. They are the lead reviewer of specifications for system improvements and provide technical assistance to purveyors and local health departments upon request.

Jocelyne Gray, P.E., Clallam County, Specialty: Funding, Cross-Connection Control, 360-236-3024

Regina Grimm, P.E., Grays Harbor, Mason, and Wahkiakum Counties, Specialty: Disinfection By-Products, 360-236-3035

Connor Lockwood, E.I.T., Lewis and Skamania Counties, Specialty: Surface Water Treatment, Surface Water Treatment Reports, Groundwater Disinfection Reports, 360-236-3019

R. Scott Pollock P.E., Clark, Cowlitz, Jefferson, and Pacific Counties, Specialty: Groundwater Treatment, Corrosion Control Treatment, 360-236-3018

Vacant, Coverage temporarily provided by Regional Planner, Thurston County, 360-236-3038

Vacant, Coverage temporarily, provided by Jocelyne Gray, P.E., Kitsap County, 360-236-3031

Planning Staff

Regional planning staff are responsible for the implementation of the state's drinking water planning program in assigned counties. They are the lead reviewer of Water System Plans, Small Water System Management Program Plans, Water System Consolidations, Water Use Efficiency, Funding, and they provide technical assistance to purveyors and local health departments upon request.

Mark Mazeski, Clallam, Grays Harbor, Lewis, Pacific, and Thurston Counties, Specialty: System consolidations, 360-236-3038

Fern Schultz, Clark, Cowlitz, Jefferson, Kitsap, Mason, Skamania, and Wahkiakum Counties, Specialty: Affordability, Customer Assistance Programs, 360-236-3031


Program Staff

Provide the day-to-day contact for the implementation of the state's drinking water program requirements and compliance, and provide technical assistance to purveyors and local health departments upon request.

Charese Gainor, Coliform Water Quality Monitoring Program, 360-236-3045

  • Coliform: sampling results, requirements, and compliance
  • Coliform and E.coli technical assistance
  • Boil water/health advisories
  • Total Coliform rule
  • WFI Updates

Sophia Petro, Chemical Water Quality Monitoring Program, 360-236-3046

  • Nitrate, arsenic, inorganic chemicals, volatile organic chemicals, synthetic organic chemicals and radionuclides, asbestos, and lead & copper
  • Susceptibility assessment, pesticide vulnerability determinations, and waivers for organic and inorganic chemical monitoring
  • Water Quality Monitoring Schedules
  • Consumer Confidence Reports
  • Groundwater under the influence

Denise Miles, Sanitary Survey Program, 360-236-3028

  • Well-site inspections
  • Technical investigations

Gael Kantz, Technical Assistance Coordinator, 360-236- 3027

  • Sanitary surveys and special purpose investigations
  • SW Region groundwater disinfection specialist and technical assistance
  • Compliance strategies and enforcement
  • Operating Permit questions

Administrative Staff

Rebecca Jordan, 360-236-3022

  • Customer assistance
  • Public disclosure
  • Invoices: project review/approval, surveys
  • Complaints
  • Consumer Confidence Report
  • Publication requests
  • Monthly treatment reports