The City of Port Isabel has adopted the "Guidance for Sustainable Stormwater Drainage on the Texas Coast" as the local design manual. This manual includes a list of acceptable stormwater treatment practices, including the specific design criteria and operation and maintenance requirements for each stormwater practice. The manual may be updated and expanded from time to time, at the discretion of the city, based on improvements in engineering, science, monitoring and local maintenance experience. Stormwater treatment practices that are designed and constructed in accordance with these design and sizing criteria will be presumed to meet the minimum water quality performance standards of 80% removal of total suspended solids (TSS).
(Ord. 593-B, passed 7-12-2022)