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Representative
(* denotes Gannett Fleming involvement)
brownfields/
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Gannett Fleming, Inc., is consultant to three out of the nine Pennsylvania municipalities that will receive Growing Greener Grants to implement biological nutrient removal (BNR) at wastewater treatment plants. This process is expected to reduce nitrogen loadings to streams and to the Chesapeake Bay. Blending At Wastewater Treatment Plants May Soon Be Resolved Many wastewater treatment plants utilize “blending” to maintain performance and protect processes during high flow periods (usually during extreme wet weather events). Selected units or processes are control-bypassed, resulting in a “blended” flow or effluent that still meets the plant’s effluent requirements. The intent of such designs has been to cost effectively achieve the water quality goals with reliability.
In recent years, USEPA Regions 3, 4 and 6 have ruled that
this in-plant bypassing is prohibited under the Clean Water Act and USEPA
regulations. Through a lawsuit and other actions, the Association of Metropolitan Sewerage Agencies and the Pennsylvania Municipal Authorities Association have urged the USEPA to issue a final policy that allows blending. As a result of these efforts, the USEPA created a draft blending policy. Release of the draft for public comment is expected shortly. "Clean Water" Central The Water Environment Research Foundation (WERF) and the Association of Metropolitan Sewerage Agencies have instituted, maintain and upgrade the CleanWater Central database. The web site contains operational and other information on 350 wastewater agencies and 500 wastewater treatment plants. This data enables administrators and operators to obtain comparative performance information and to perform “benchmarking.” Wastewater agencies throughout the U.S. are encouraged to join and use the database. Upgraded over the summer, the web site can be viewed at www.cleanwatercentral.org. Risk
Management Plans: Wastewater treatment plants, among other facilities, are required to develop Risk Management Plans (RMPs) as a result of handling or storing certain toxic or flammable materials (including chlorine gas). The original regulation was implemented in 1999 and 5-year updates are mandatory. The USEPA recently proposed a rule change regarding RMP
Release Prevention Requirements under the Clean Air Act. The amendment
would require facilities to update and re-submit the RMP
within 6 months of any accident date (under certain criteria). The proposed rule can be accessed through the USEPA web site. SSO/CSO Uncertainties Continue As reported in Issue 7, many municipalities experience problems with excessive wet weather flows, in addition to overflows from sanitary sewers and combined sewers (SSOs and CSOs). Over the past few years, the USEPA has refocused its efforts on pollution from overflows by modifying regulations and enforcing program requirements. Despite these initiatives, controversy continues over data adequacy linking CSOs and SSOs to environmental degradation and illness. The USEPA recently provided preliminary conclusions from data collection associated with its upcoming "Report to Congress on the Impacts and Controls of Combined Sewer Overflows (CSOs) and Sanitary Sewer Overflows Report." Advocacy groups, such as the Association of Metropolitan Sewerage Agencies, have questioned the quality of available data. Environmental
Justice:
Environmental Justice is about the pursuit of equal justice and equal environmental protection for all people - regardless of race, ethnicity or economic conditions. It affects federally funded programs, which must comply with Executive Order 12898. This mandate allows for full community participation and input in the environmental decision-making process. Gannett Fleming Project Manager Scott Duncanson assisted the Federal Highway Administration's Pennsylvania Division Office with a series of Environmental Justice Training Workshops for Pennsylvania Department of Transportation (PENNDOT) staff. Scott continues to work on related initiatives. » American Society of Civil Engineers » Association of Metropolitan Sewerage Agencies » Environmental
Justice » Water Environment Federation |
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