Maryland TMDL Data Center

                     

TMDL Search

 

WLA Search

 

TMDL Maps

Search for approved TMDLs by county, by watershed or for the entire state

 

Find the stormwater or wastewater waste load allocations for an NPDES permit

 

View the geographic extents of existing TMDLs and download GIS shapefiles

                     

Stormwater Toolkit

 

Stormwater Documents

 

TMDL Implementation
Research Projects

Tools to assist in applying stormwater WLAs to regulated stormwater systems

 

Guidance documents to assist stormwater permittees in implementing TMDLs

 

Studies and analyses related to TMDL Implementation


​​


Disclaimer​

PLEASE READ THE FOLLOWING TERMS OF USE AND DISCLAIMER CAREFULLY BEFORE USING THIS WEB SITE. BY ACCESSING OR USING THE SITE, YOU AGREE TO THE DISCLAIMER AND ALL OTHER TERMS PROVIDED BELOW. IF YOU DO NOT AGREE TO THE DISCLAIMER AND ALL OF THESE TERMS, DO NOT ACCESS OR USE THIS SITE.

The TMDL Data Center is provided for informational purposes only. Official waste load allocations are provided in the TMDL report and associated documents. The State of Maryland makes no warranty or representation, express or implied, with respect to the quality, content, accuracy or completeness of any of the materials and items contained in or displayed on this site. All such items and materials are provided on an "as is" basis, and you are fully and solely responsible for your use of them and for any results or consequences of your use. In no event shall the State or its agencies, officers, employees, agents, or representatives be liable for any direct, indirect, special, punitive, incidental, exemplary or consequential damages arising your accessing or using the site, or otherwise arising from the site or from anything contained in or displayed on the site. Nothing contained in or displayed on this site constitutes or is intended to constitute legal advice by the State or any of its agencies, officers, employees, agents, attorneys, or representatives.

Please direct questions or comments concerning Maryland's TMDL Program to mde.tmdlcoordinator@maryland.gov or call​ (410) 537-3884.​​

​​




Human Trafficking GET HELP

National Human Trafficking Hotline - 24/7 Confidential

1-888-373-7888 233733 More Information on human trafficking in Maryland

Customer Service Promise

The State of Maryland pledges to provide constituents, businesses, customers, and stakeholders with friendly and courteous, timely and responsive, accurate and consistent, accessible and convenient, and truthful and transparent services.

Take Our Survey

Help Stop Fraud in State Government

The Maryland General Assembly’s Office of Legislative Audits operates a toll-free fraud hotline to receive allegations of fraud and/or abuse of State government resources. Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources.

More Information