* Reduced rate For a qualifying low-income senior or disabled homeowner’s primary residence (see Sections 8.03.1760 and 8.03.8525).To see if you qualify for a tax exemption, check with the Spokane County Assessor's Office.
Single Family Residence
Rate Effective March 1, 2023
Single Family Residence Total Monthly Bill
$48.41
Operations and Maintenance (O&M)
$30.79
Wastewater Treatment Plant Charge (WTPC)
$17.62
Duplex
Rate Effective March 1, 2023
Duplex Total Monthly Bill
$96.82
Operations and Maintenance (O&M)
$61.58
Wastewater Treatment Plant Charge (WTPC)
$35.24
Multi-Family Dwellings**
Rate Effective March 1, 2023
Sewer Service Fee
$19.06 per unit
Wastewater Treatment Plant Charge (WTPC)
$12.33 per unit
Account Charge
$3.50
** For multi-family dwellings
The O&M Fee is calculated by reducing the single-family residence O&M Fee by the “account charge” (for account maintenance) and applying a factor of 0.7 (see Section 8.03.1247) to the balance. The account charge is then added to each sewer billing account.
Business/Commercial Properties***
Rate Effective March 1, 2023
Operations and Maintenance - Base Fee
$30.79
Operations and Maintenance - Volume Fee
$3.40
Wastewater Treatment Plant Charge - Base Fee
$17.62
Wastewater Treatment Plant Charge - Volume Fee
$2.20
Manufactured Home Parks***
Rate Effective March 1, 2023
Operations and Maintenance - Base Fee
$30.79
Operations and Maintenance - Volume Fee
$3.40
Wastewater Treatment Plant Charge - Base Fee
$17.62
Wastewater Treatment Plant Charge - Volume Fee
$2.20
*** For business/commercial and manufactured home parks
The O&M and WTPC fees are based upon the Customer’s volume of non-irrigation water consumption, and is calculated as follows:
(1) Base Fees (O&M & WTPC) - Charge for the first 800 CF (see Section 8.03.1247).
(2) Volume Fees (O&M & WTPC) - Charge per each 100 CF of water consumed over the first ERU.
General Facilities Charges (Per Equivalent Residential Unit Eru)
General Facilities Charge (GFC) Per ERU
Effective January 1, 2010
Effective January 1, 2011
Effective January 1, 2012
Effective February 1, 2016
Effective February 1, 2022
Elimination of subsurface effluent discharge
$1,885
$1,885
$2,690
$2,780
$2,900
New development
$3,930
$4,220
$4,510
$4,630
$4,830
Capital Facilities Rates (Per Equivalent Residential Unit Eru)
Prepayment Option (interest free) - Monthly Payment Option (includes interest and bond charges):
2011 Projects $5915 - $42.75 per month for 240 months
2010 Projects $5780 - $41.80 per month for 240 months
2009 Projects $5650 - $40.85 per month for 240 months
2008 Projects $5520 - $39.90 per month for 240 months
2007 Projects $5395 - $39.10 per month for 240 months
2006 Projects $5275 - $38.25 per month for 240 months
2005 Projects $5160 - $37.45 per month for 240 months
2004 Projects $5050 - $36.65 per month for 240 months
2003 Projects $4950 - $36 per month for 240 months
2002 Projects $4950 - $36 per month for 240 months
2001 Projects $4685 - $35 per month for 240 months
Helpful Resources
See additional detailed information about sewer service fees: