ASSESSMENT, PLANNING, AND DESIGN OF STORMWATER QUALITY CONTROLS AT NORTHEAST U.S. INDUSTRIAL FACILITIES
Abstract:Industrial facilities throughout the United States are facing increasing scrutiny about the quality of their stormwater discharges. As the NPDES Stormwater program has evolved from its implementation stages in the early and mid-1990s, State and Federal stormwater regulators have been relying upon enforcement to improve the quality of industrial stormwater discharges. The recently promulgated NPDES Stormwater Phase II regulations and ongoing efforts to improve the quality of impaired water bodies through the development of Total Maximum Daily Loads (TMDLs) are placing additional pressure on industrial facilities to reduce stormwater pollutant levels by implementing source controls and stormwater treatment.
A variety of non-structural and structural stormwater best management practices (BMPs) are available which industries can utilize to improve stormwater quality and meet NPDES stormwater permit requirements. Identification of the target pollutants and associated sources is a critical first step in screening control methods for technical feasibility. The effectiveness of particular controls for addressing the target pollutants, as well as site suitability and other important design considerations, ultimately determine the most appropriate stormwater controls for a particular site.
In the Northeast U.S., where a humid climate and the effects of acid rain exist, dissolved metals are a common pollutant and source of aquatic toxicity in stormwater discharges from a wide variety of manufacturing facilities. Removal of dissolved metals from stormwater typically requires the use of technologies which rely on biological or chemical treatment rather than conventional settling or filtration. This paper presents an overview of the assessment and planning phases of stormwater treatment evaluations for industrial facilities, with a focus on structural control measures for removal of dissolved metals and other industrial stormwater pollutants common to the Northeast U.S.
Document Type: Research Article
Publication date: January 1, 2001
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