Catalog Search Results
Pub. Date
1995.
Description
The requirement to develop a SWMP prior to application for the general permit applies to all facilities. The applicant needs to develop a SWMP for their facility, and certify to the Division that it has been developed and implemented. The SWMP shall be prepared in accordance with good engineering practices.
Author
Pub. Date
[2012]
Description
In this study, the Regional Transportation District's (RTD's) light rail operations were examined for pollutant production and runoff. Conclusions from the study: Water leaving ballasted tracks carries only a small fraction of the heavy metals that are introduced into tracks from the light rail operations. Heavy metal concentrations at the most heavily traveled light rail station showed that pollutant concentrations were far below the regulatory limits....
Author
Pub. Date
2012.
Description
The goal of this project is to investigate the hydraulic efficiencies of Type 13 (bar inlets), Type 16 (vane inlets), and Type R (curb-opening inlets) for street and roadway drainage. Although these inlets have been widely used in many metropolitan areas, the design empirical formulas and coefficients have not been verified.
Author
Pub. Date
[2012]
Description
In this study, the Regional Transportation District's (RTD's) light rail tracks were modeled to determine the Rational Method runoff coefficient, C, values corresponding to ballasted tracks. The runoff coefficient for ballasted tracks is significantly larger than the previously tabulated values for railroad yards. The higher runoff coefficient reflects the design of ballasted tracks to drain rainfall as quickly as possible.
15) Cost-effective design and operation of urban stormwater control systems: decision-support software
Series
Completion report volume no. 135
Pub. Date
[1984]
Pub. Date
2006.
Description
Our drinking water supplies, fishing and recreational waters are fouled by uncontrolled pollution when rainwater and snowmelt wash over city streets, parking lots, and suburban lawns and pick up toxic chemicals, disease-causing organisms (from pet waste), and dirt and trash. This problem is called urban stormwater pollution. Recent studies have found that urban stormwater rivals and in some cases exceeds sewage plants and large factories as a source...
Author
Pub. Date
2015.
Description
The revegetation of previously disturbed areas from highway construction activities is a critical component to overall site stormwater management strategy. Poor revegetation actions during and after construction can lead to difficulty in deactivating stormwater construction permits (SCPs). Excessive duration of open permits due to poor revegetation success can result in higher non-project costs for erosion control, revegetation rework and maintenance,...
Author
Pub. Date
2009.
Description
The purpose and focus of this study is to identify and promote stormwater management technologies and practices that may be implemented locally to protect and conserve water resources through mitigation of detrimental impacts caused by land disturbances and modifications associated with land development. Naturally vegetated or undisturbed ecosystems produce little to no runoff from the vast majority of precipitation events. While runoff is part of...
