Stormwater & Watershed Quality Management

Storm Water

The water that is produced by natural precipitation such as snow, sleet, and rain. As this water accumulates it begins to move and migrate through a process known as runoff. Storm Water Runoff moves through our environment picking up items along the way. These items can include plastic bottles, wood, sediment, and petroleum products to name a few. A Watershed is a topographical surface feature on our Planet Earth where rainfall and precipitation drain to a common location.


What Watershed Am I In?

Click here to view a map of the local sub-watersheds of Grapevine.  These are the streams that receive water within the City's boundaries. 


​Stormwater Management Plan

The City of Grapevine has developed a Storm Water Management Plan (SWMP) per the Texas Commission of Environmental Quality's (TCEQ) General Permit to Discharge Under the Texas Pollutant Discharge Elimination System (TPDES) - Stormwater Discharges from Phase II (Small) Municipal Separate Storm System Sewer System (MS4s) TXR040000 (FAQ). The Current Permit was issued on August 15, 2024, and is a 5-year permit. The 2024 MS4 Permit and FAQ provided guidance for the development of the City's SWMP. The City of Grapevine holds Permit Number TXR040114. This permit allows the City to discharge unpolluted waters to the Water of the United States. The purpose of the SWMP is to provide a guidance document for the City to reduce and/or eliminate potential stormwater pollution sources before those pollutants enter the Waters of the U.S.

The City of Grapevine received 2024 MS4 Permit Authorization on August 14, 2025. The City's Permit Authorization, Notice of Intent, and SWMP for the are posted here (see previous links) for review. 

The previous 2019 MS4 Permit and FAQ provided guidance for the development of the City's previous SWMP.

The Annual Reports for the 2019 MS4 Permit, which have been submitted to the TCEQ for the fiscal years 2019-2025 can be found here: 2019, 2020, 2021, 2022, 2023, 2024, and 2025 (The 2025 Annual Report will be posted here November 2025 once it has been submitted to the TCEQ).
Management of stormwater resources is governed by the Clean Water Act under the National Pollutant Discharge Elimination System. The City of Grapevine’s goal is to work in a cooperative teamwork spirit with the Texas Commission on Environmental Quality, the United States Environmental Protection Agency www.epa.gov, the North Central Texas Council of Governments, as well as all county and local governments to manage stormwater quality concerns as effectively as possible.

TO EXPAND YOUR KNOWLEDGE AND DISCOVER MORE ABOUT STORMWATER AND OTHER ENVIRONMENTAL ISSUES VISIT OUR ECOLOGICAL ROUNDUP PAGE DOWN AT THE CONSERVATION CORRAL.