This guidance can be used to assist Municipal Separate Storm Sewer System (MS4) Permittees in completing the MS4 General Stormwater Permit Application and the Commissioner-approved TMDL Annual Reporting Form (TMDL Form). The guidance linked below contains information about baseline years for TMDLs approved prior to the effective date of the MS4 permit that do not explicitly define a baseline year in the TMDL report.

Please click here to download the baseline year guidance document: File:TMDLbaselinesMS4.docx