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ESSA has been assisting provincial, state and national agencies with the development and application of environmental policy and regulations in North America for over 15 years. The breadth of our professional staff in the natural and social sciences combined with our skills in adaptive environmental management, ecological modelling, and facilitation/mediation allow us to work closely with agencies in the articulation and evaluation of new and existing policy and regulations for environment management and protection.

In Canada clients that have retained our assistance are the Canadian Environmental Assessment Agency (formerly the FEARO), Federal Departments of Fisheries and Oceans (DFO) and Environment (DOE), Ontario Ministries of Natural Resources (OMNR) and Environment (OMOE), and Ontario Power Generation (formerly Ontario Hydro). Example work products are revisions to the Fisheries Act, re-development of national and provincial class environment assessment protocols, articulation of cumulative effects assessment methods, and evaluation of environmental effects monitoring programs of power plants.

Section 316b of US Clean Water Act

Recently ESSA has been assisting State Departments of Environmental Protection and Conservation with the evaluation of National Pollutant Discharge Elimination System (NPDES) permit applications for electric power generation stations and other industries that withdraw ambient cooling water for industrial processes. The NDPES serves section 316b of the Clean Water Act, which ensures that best technology available (BTA) is used at cooling water intakes to minimize entrainment and impingement of aquatic biota, and that the costs of BTA are not disproportionate with the benefits.

At arms length, ESSA's multidisciplinary team provides the expertise required to evaluate assessments of:

1. effectiveness of BTA to reduce entrainment and impingement at cooling water intakes;
2. the costs, benefits, and safety issues associated with BTA; and
3. the fisheries and aquatic ecosystem effects of entrainment and impingement.

As of April 2002, ESSA has assisted the states of New York, New Jersey, Delaware, and Connecticut with their evaluations of NPDES permit applications.

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