City of Frisco Engineering Standards

Engineering Standards
The storm water management controls included in the SW3P should focus on providing control of
pollutant discharges with practical approaches that use readily available techniques, expertise,
materials, and equipment. The SW3P must be implemented prior to the start of construction
activity.
A. Construction Controls
Structural and non-structural controls may be used for controlling pollutants for storm water
discharges from small and large sites. Structural controls shall comply with details and
specifications in the latest edition of the NCTCOG iSWM Technical Manual and these standards.
When the NCTCOG Manual and these standards are in conflict, these standards shall govern.
The following are acceptable temporary controls for use during construction:
Non-Structural
• Minimizing the area of disturbance
• Preserving existing vegetation
Structural
• Silt fence
• Inlet protection
• Rock check dams
• Stabilized construction entrances
• Sediment traps
• Vegetated buffer strips
• Temporary detention structure
• Rock check dams
• Hydromulch
Suggested construction controls can be found on the NCTCOG iSWM website.
It is the responsibility of the design engineer to select and design appropriate construction
controls for each site. If the most appropriate control is not shown in the iSWM Technical
Manual, the design engineer shall submit calculations and references for design of the control to
the Department of Engineering Services for review and approval.
B. Waste and Hazardous Material Controls
Covered containers shall be provided for waste construction materials and daily trash. Hazardous
materials shall be stored in a manner that prevents contact with rainfall and runoff. Onsite fuel
tanks and other containers of motor vehicle fluids shall be placed in a bermed area with a liquidtight
liner or be provided with other secondary containment and spill prevention controls.
The SW3P shall require federal, state and local reporting of any spills and releases of hazardous
materials greater than the regulated Reportable Quantity (RQ) and reporting to Engineering
Services of all spills and releases to the storm drainage system.
Section 8 – Environmental Requirements May 2012 Page 8-4