iSWM Program Guidance contains documents that guide local governments in adopting and implementing the iSWM Program and in developing a comprehensive stormwater management program.

Recent materials have been developed for local government implementation of iSWM. Additional information is being developed and will be posted. For more information, please contact the NCTCOG Environment & Development Department at or 817-695-9210.


iSWM Implementation Review Process Guide

This document is to serve as a guide on the procedures of the iSWM Implementation Review Process.

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iSWM Program Implementation Tiered Measurement

This document provides communities with a checklist of outcomes that they can use to determine iSWM status when applying to become an iSWM certified community.

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Guidance for Partial Application of Outcomes

This document is to serve as a guide on the intent of the outcomes used to measure a jurisdiction's partial application. It also provides generalized examples of acceptable and not acceptable partial applications.

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Redevelopment Guidance

This document provides before and after examples of redevelopment using iSWM principles. Includes labeled drawings and photo examples.

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Sample Ordinance Language for Integrated Site Design Practices

This document can be used as a guide for municipalities wishing to achieve the iSWM program outcomes which may require updates to municipal codes related to site design practices.

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Downstream Assessment Practices Review and Benchmarking

This document provides a summary of review for downstream assessment criteria used by various municipalities and provides additional options when applying the downstream assessment.

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Benefits and Incentives

Local governments that achieve Bronze, Silver, or Gold iSWM Implementation may be entitled to a series of benefits that are being considered by the iSWM Implementation Subcommittee.

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Other iSWM Related Documents

Comparison of Maintenance and Inspection Methods

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.

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Watershed-Based Stormwater Planning

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.

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Floodplain Management

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.

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Dam Safety and Water Rights

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.

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