Kalamazoo City
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Wastewater Rates

The City of Kalamazoo charges for flows coming from any building or premises having a connection to the sewer collection system. The City bases rates for treatment service on the water consumption of the user's premises*.

If the owner of the building receives water from any source other than the City Water Department, the owner must arrange to have suitable metering facilities installed at the owner's expense. The Water Department will provide, maintain and read the meter, and will charge an applicable water service fee in addition to the established rate for wastewater service.

Any user of the wastewater system may elect to rearrange his water supply pipes and metering for the purpose of eliminating water consumption charges for water that is not running to sanitary sewers. All such arrangements are subject to the approval of the Director, and expenses for installation, maintenance and operation will be borne by the user.

*Summer water consumption for lawn sprinkling and swimming pools should not exceed 120% of winter quarter consumption for quarterly users whose winter quarter consumption is less than 200 cubic meters and monthly costumers whose winter quarter water consumption does not exceed 66 cubic meters per month.

Rate Determination For Retail Commodity Users

The City of Kalamazoo owns and operates the Kalamazoo Water Reclamation Plant (KWRP). As a return on taxpayers' investment, users within the city limits of Kalamazoo are charged a lower rate for wastewater discharged to the KWRP than users outside the city limits.

Values used to represent domestic strength of wastewater are:

  • 236 mg/L BOD (biochemical oxygen demand)
  • 168 mg/L SS (suspended solids)
  • 23 mg/L NH3 (ammonia nitrogen)

Most users of the system discharge at or below domestic strength. These users are billed based on a commodity value per cubic meter of water consumption.

Rates For Commodity Users

All rates can be found on our pdf  Rate Schedule .

Wholesale Rate For Municipalities

Kalamazoo also provides a wholesale rate for several municipal customers. This rate is approximately two-thirds the rate charged to City of Kalamazoo commodity users. Wastewater from wholesale municipalities is channeled through a master metering station.

The Villages of Augusta and Vicksburg along with the Cities of Parchment and Portage are classified as "Master Metered Customers."

Additionally, the City of Galesburg and portions of the City of Portage discharge wastewater that does not flow through a master meter. The customers are charged a rate that accounts for infiltration and inflow of groundwater.

Rate Determination For Surcharge Users

Industrial users pay "Quantity/Quality" charges based on the strength of their wastewater. This billing system establishes a value on several variables representative for the strength of the wastewater compared with typical residential discharges. City technical services staff routinely monitor industrial flows for BOD, SS and NH3 strength. If this monitoring demonstrates a particular user has higher than normal waste characteristics, the user is billed according to the strength of the discharge.


Dewatering is the temporary discharge of ground water associated with a construction project that needs to maintain below grade excavation free from surface or subsurface infiltration of water.

Septage and Liquid Industrial Waste Haulers

Hauled waste may be discharged only at the KWRP hauled waste receiving station. Hauled waste will be accepted only if the hauler meets the following conditions:

  1. The hauled waste is domestic waste and:
    • consists only of septage waste;
    • is delivered by a hauler licensed for septage hauling in the state of Michigan.
  2. The hauled waste is non-domestic waste and:
    • consists only of nonhazardous waste;
    • is delivered by a hauler licensed for hauling liquid industrial waste in the state of Michigan.
    • The generator provides in writing a description of the origin of the waste, identification of all pollutants, and certification that the waste is not hazardous by either listing or characteristic as defined by the Resource Conservation and Recovery Act (RCRA,0);
    • prior to discharge, the generator provides sample analysis that demonstrates the waste is not a RCRA characteristic hazardous waste and meets all local discharge limits and applicable categorical pretreatment standards;
    • has been approved by the Directory prior to hauling to the KWRP;
    • delivery times have been arranged with KWRP personnel prior to disposal.
  3. In addition to the above, the waste must meet any other applicable conditions imposed by the Director.
  4. Upon deliver of waste, a hauler must complete and sign a form provided at the receiving station. This form details the source of the waste and presents a certification statement that the waste is nonhazardous and that the hauler understands the consequences for noncompliance.

Septage haulers average strength of wastewater is:

  • 6,000 mg/L BOD (biochemical oxygen demand)
  • 14,000 mg/L SS (suspended solids)
  • 157 mg/L NH3 (ammonia nitrogen)

Septage haulers whose wastewater strengths are below these amounts may document their wastewater strengths to the satisfaction of the Director and will be allowed to lower quantity/quality rates.

Septage rates are the same inside and outside The City of Kalamazoo - $12.506 per cubic meter.

If you have further questions, contact the Customer Service Office at (269) 337-8149.