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City of Dayton Industrial Pretreatment Program

EXTRA-STRENGTH SURCHARGES

The City of Dayton Industrial Pretreatment Program administers the Extra-strength Surcharge Program. A surcharge may be applied to a business that discharges extra-strength wastewater. Extra-strength wastewater is defined as having a Biochemical Oxygen Demand concentration greater than 350 mg/L and / or a Total Suspended Solids concentration greater than 350 mg/L. Industrial Pretreatment Program personnel perform monitoring at businesses determined to be surchargeable. This monitoring is used to calculate the extra-strength charge.

The surcharge rates, as well as the water and sewer rates, vary depending on the location of your business within the City of Dayton Wastewater Treatment service area. Below is the formula for the surcharge bill calculations:

BOD surcharge =

  • [rate ($)] x [average BOD discharge concentration (mg/L) - 350 (mg/L)] x [flow (1000 cu.ft.)]

TSS surcharge =

  • [rate ($)] x [average TSS discharge concentration (mg/L) - 350 (mg/L)] x [flow (1000 cu.ft.)]

City of Dayton Water Rate Ordinance

City of Dayton Sewer Rate Ordinance

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