Public Works and Environmental Services

CONTACT INFORMATION: Our administrative offices are open Mon – Fri by phone, email, and virtual 8 a.m. - 4:30 p.m. For in-person service, front-desk hours are 9 a.m. – noon.
703-324-5015 TTY 711
12000 Government Center Parkway
Suite 358, Fairfax, Va 22035
Shahram Mohsenin
Director, Wastewater Planning & Monitoring

Sewer Charges

Billing policies and sewer charges are established by the Board of Supervisors as prescribed by Article 10, Chapter 67.1 of the County Code. Charges and code language are reviewed annually by county staff as part of the county’s annual strategic planning and budgeting process and revised as necessary. Following are specific billing practices:

A Sewer Base Charge, for all customers, became effective with the billing period beginning July 1, 2009. The base fee is to partially recover fixed expenses for billing, wastewater collection, engineering, planning and administration.

Sewer service charges are billed and collected in quarterly combined water and sewer billings through two water billing agents. To establish a sewer billing account contact the appropriate water supplier:

Contact the Wastewater Planning and Monitoring Division at 703-324-5015, TTY 711, with questions regarding sewer service charge rates and billing.

Fee Increase at a Glance

  • The residential base charge is increasing $4.92 per quarter. The base charge for commercial customers will vary depending on the meter size. Both residential and commercial customers will see an increase of $0.35 in the volumetric rate.
  • New environmental rules to protect the Potomac River and Chesapeake Bay are one reason for the increase.
  • Sewer rates are also increasing to cover the cost of replacing our aging sewer system.
  • The county rates are competitive with other regional jurisdictions.

Fairfax Virtual Assistant