KCWMB is located 20 miles northwest of Houston, TX, on the Katy Prairie. The KCWMB service area includes the watershed associated with Cypress Creek, the Brazos River, the Trinity River and Buffalo Bayou. The service area also includes the Katy Prairie and similar prairie and low-quality forested ecosystems located within Harris, Chambers, Galveston, Brazoria, Fort Bend, Matagorda, Calhoun, Wharton (east of the Colorado River), Austin, Waller, Montgomery, and Liberty Counties. KCWMB offers its wetland credit solution to mitigate wetland impacts in these 12 counties.