Maximum Extent Practicable (MEP) Calculator Spreadsheet

MS4s with PAG-13 General Permit coverage that discharge to impaired waters must submit to DEP a Volume Management Plan (VMP) that demonstrates how the MS4 will achieve a Volume Management Objective. The Volume Management Objective for the permit term will be calculated using DEP’s Maximum Extent Practicable (MEP) Calculator Spreadsheet. 

The MEP Calculator Spreadsheet and Instructions are available on the DEP's MS4 website. 

Click https://view.officeapps.live.com/op/view.aspx?src=https%3A%2F%2Ffiles.dep.state.pa.us%2FWater%2FBPNPSM%2FStormwaterManagement%2FMunicipalStormwater%2FMEP_Calculator.xlsm&wdOrigin=BROWSELINK link to open resource.