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8570 Executive Park Avenue
    Fairfax, VA 22031
Main: 703-698-5600
    Customer Service: 703-698-5800
After Hours / Emergencies: 703-698-5613
    TTY: 711

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FAQs

 

Sewer Charges and Taxes

Fairfax Water does not maintain the sewer system, but we do provide sewer billing and collection services for Fairfax County, the City of Falls Church and the City of Fairfax. This allows most of our customers to pay for both water and sewer services on a combined statement.

Fairfax County

Information can be found at: http://www.fairfaxcounty.gov/dpwes/wastewater/sewerrate.htm or you can direct questions to DPWES at 703-324-5015, TTY 711.

Base Charge

Effective with meter readings on or after October 1, 2013, the sewer base charge is based on account type and meter size. The larger the meter size, the higher the base charge. The sewer base charge is collected to partially recover fixed expenses to operate and manage the system, which continue to increase. The aging system and increased regulatory requirements are contributing factors.

METER SIZE BASE CHARGE
3/4" and smaller, Residential, as well
as Fixture Accounts
$12.79
1" $31.98
1 1/2" $63.95
2" $102.32
3" $191.85
4" $319.75
6" $639.50
8" $1,023.20
10" or larger $1,279.00

For accounts with more than one main meter, the base charges will be added and appear on the bill as one line item. Sub-meters will not be charged a sewer base.

Consumption

Residential customers are billed for use of the sanitary sewer system at a rate of $6.55 per 1,000 gallons. Sewer usage is based on water consumption during the current billing period or the preceding winter quarter billing period, whichever is lower. This prevents residential customers from being charged sewer rates on water used outdoors during the summer.

Residential customers who use the County’s sanitary sewer system and obtain water from a private well are charged based on the number of persons residing in the home.

Commercial customers are billed for sewer use based on their actual water consumption at a rate of $6.55 per 1,000 gallons. Some commercial customers use meters to separately measure water that does not drain to the sanitary sewer system, such as water used for irrigation or cooling systems. These metering arrangements do not benefit residential customers, whose winter quarter water consumption limits the amount of sewer usage billed in the summer months.

Commercial customers who use the County’s sanitary sewer system and obtain water from a private well are charged based on the number of fixtures in the commercial building.

City of Falls Church

Information can be found at: www.fallschurchva.gov or you can direct questions to the Department of Public Works at 703-248-5350, TTY 711. For computational purposes, the billing year begins on July 1 and end the following June 30.

Base Charge

A fixed charge of $6.00 for quarterly customers (and $2.00 for monthly customers) is paid to the City of Falls Church to partially recover administrative and customer service costs.

Consumption

Residential customers are billed at a rate of $9.40 per 1,000 gallons. It is based on winter quarter water consumption or the actual water consumption during the current billing period, whichever is lower. This prevents residential customers from being charged sewer rates on water used outdoors during the warmer months because it does not drain to the sanitary sewer system. The City of Falls Church prorates this amount on initial and final bills based on average winter quarter consumption.

Non-metered Services - Single-family residences are billed on the basis of per capita average of similar users. These customers are charged based on the number of persons residing in the home.

Commercial customers are billed at a rate of $9.40 per 1,000 gallons. It is based on actual water consumption. Some commercial customers use additional meters to separately measure water that does not drain to the sanitary sewer system, such as water used for irrigation or cooling systems. Residential customers would not benefit from this type of metering because their winter quarter consumption already limits the amount of sewer usage billed in the summer months.

Taxes

Water and sewer utility taxes are assessed by and collected for the City of Falls Church. Residential customers are taxed on water and sewer at a rate of 10 percent each, with a maximum of $15 each. Commercial customers are taxed on water and sewer at a rate of 8 percent each, with no maximum.

City of Fairfax

Information can be found at: www.fairfaxva.gov or you can direct questions to 703-385-7810, TTY 711. Ordinance No. 2014-11, which concerned these rates, took effect on July 1, 2014.

Sewer Minimum Charge is based on all water used up to 5,000 gallons during the current billing period.

Residential customers are charged $29.37.
Commercial customers are charged $34.55.

Consumption

Customers are charged $5.61 per 1,000 gallons above the minimum.

Some commercial customers use additional meters to separately measure water that does not drain to the sanitary sewer system, such as water used for irrigation or cooling systems.

Non-metered Services - Residences are billed a flat sewer service charge.

Apartment sewer charges are calculated by taking the greater of the following:

(a) The consumption times the rate ($5.61) + the minimum charge ($34.55)
(b) The Flat Sewer Rate ($22.91) times the number of units

Taxes

Utility tax is assessed by and collected for the City of Fairfax. The tax is equal to 15 percent of the water service charge. There is a maximum of $15 that is assessed to residential customers and a maximum of $500 to commercial customers.

Apartment water taxes are calculated by taking the lesser of the following, but shall not exceed $500 per month:

(a) The number of units multiplied by $2.25, or
(b) 15 percent of the water charges