This memorandum provides supplemental guidance for communities in the region for the evaluation of post-construction stormwater BMP proprietary devices. This document supplements Section 26 of the Site Development Controls Chapter in the iSWM Technical Manual and documents the assumptions and processes for preparing this information.
The following are documents that can assist local governments in adopting and implementing iSWM practices and developing a comprehensive stormwater management program.
Also check our our training page for detailed training on iSWM principles and general stormwater management best practices.
Other iSWM Related Documents
This memo summarizes our findings related to ownership, maintenance and inspection methods, waste management, appeals, variances, and enforcement actions. The intent is to provide a thorough description of how other cities and counties across the country are addressing these issues in their ordinances so that cities adopting iSWM might have a useful reference to develop their own water quality ordinance.
Stormwater master planning is an important tool with which communities can assess and prioritize both existing and potential future stormwater problems, as well as use to consider alternative stormwater management solutions. A stormwater master plan is prepared to consider, in detail, what stormwater management practices and measures are to be provided for an urban drainage area or a large development project.
Multi-objective stormwater master planning broadens this traditional definition to potentially include land use planning and zoning, water quality, habitat, recreation, and aesthetic considerations. The broadest type of stormwater master plan is the comprehensive watershed plan which is described in detail in this resource guide.
Floodplain management involves the designation of flood-prone areas and the limiting of their uses to those compatible with a given degree of risk. It is also aimed at minimizing modifications to streams, reducing flood hazards, and protecting the water quality of streams. As such, floodplain management can be seen as a subset of the larger consideration of surface water and stormwater management within a local community.
The Texas Commission on Environmental Quality (TCEQ) is responsible for administering state dam-safety laws. TCEQ has four primary areas of activity in the dam-safety program: (1) safety evaluations of existing dams, (2) review of plans and specifications for dam construction and major rehabilitation work, (3) periodic inspections of construction work on new and existing dams, and (4) review and approval of emergency action plans.
The Economic & Environmental Benefits of Stewardship tool can estimate the return on investment of implementing environmental stewardship to reduce the environmental effects of transportation projects. The tool can educate decision-makers about the value of environmental stewardship.
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