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Clean Water Testimony

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Oyster Creeek Nuclear Generating Station's Pollution of Nearby Waterways


Before the New Jersey Department of Environmental Protection Division of Water Quality, Bureau of Point Source Permitting, Region 1.

As the new home of NJPIRG's environmental work, Environment New Jersey can be contacted regarding this news release.

Since Oyster Creek was built in 1969, the plant's operation has resulted in far-reaching and long-lasting environmental degradation in the nearby waterways of Forked River, Oyster Creek and Barnegat Bay.

Oyster Creek's once-through cooling system was designed in the 1960s. The system intakes water from Forked River to cool the reactor and the heated water, or thermal pollution, is then discharged into Oyster Creek. The plant intakes and discharges an enormous amount of water—over 1.4 billion gallons—on a daily basis. The water is taken in at a speed of 1-2,000 cubic feet per second, which is the force of a medium-sized river. The chlorine levels in the water are also 20 times the lethal level of many types of aquatic life.

Despite grates over the intakes, the water flushing creates a giant sucking action that brings with it an assortment of aquatic life. Some of this aquatic life is small, flows through the grate, and is killed in process of cooling the reactor. This lethal effect is called entrainment. Larger types of aquatic life, such as striped bass, white perch, and endangered sea turtles, get pinned on the grate and often die from, or are seriously injured by, the rush of oncoming water. This lethal effect is called impingement.

The plant has developed a record of killing threatened and endangered species, specifically sea turtles, over the last ten years. From 1992 to 2000, the plant recorded 17 captures of sea turtles and six sea turtle mortalities. Even though these figures are high, the problem could be much worse. A 2001 Nuclear Regulatory Commission report found discrepancies in the number of kills that Exelon reported to the NRC and the number in the archive, and concluded the "inconsistent and erratic availability of data on sea turtle captures at Oyster Creek underscores a wider unreliability of information supplied to the public."

In addition to daily impingement and entrainment, Oyster Creek's daily thermal pollution discharge often spreads a thermal plume over a distance of over four miles across the entire width of Barnegat Bay. The plume creates a "fry" zone for young larvae and spawn, and NRC studies indicate that the thermal plume has increased the population of tropical wood-boring species that serve as aquatic termites for boat bottoms and home foundations.

And as a result of this once-through cooling system, Oyster Creek has a long history of massive fish kills when plant operators have failed to turn off dilution pumps during planned or emergency shut-downs, allowing millions of gallons of hot water to enter the Creek and the Bay. In the 1972, the plant killed over half a million fish. Larger fish kills have continued sporadically over the last three decades. The most recent fish kill, in September 2002, was the largest fish kill since 1985.

All of the problems associated with Oyster Creek's cooling system put the plant in violation of the Clean Water Act, which requires plants to install modern pollution controls.

A closed-cycle cooling system, which draws water into the plant for cooling, re-circulates it, and expels the heat through cooling towers, meets this requirement. This system reduces water intake and discharge by over 95%, saving 13 million fish and shellfish and an estimated loss of tens of millions additional larvae annually. The system will also eliminate fish kills caused by thermal shock from the discharge, stop the dumping of over 365 tons of toxic chlorine into the bay annually, and create hundreds of jobs during construction.

Unfortunately, the NJ DEP's current draft permit for Oyster Creek does not require the plant to install a closed-cycle cooling system. Instead, the draft permit describes a closed-cycle system as the "preferred alternative", but also gives Exelon a fall-back option—the "restoration" of 3,500 acres of wetlands. This draft permit is unacceptable.

The final DEP permit must require Exelon to install a closed-cycle cooling system as the only method of fixing Oyster Creek’s water discharge problem. Further, the permit must ensure that a feasibility study regarding the installation of a closed-cycle cooling system is complete within 3 months of the permit issuance. Based on EPA contractor estimates, it would take 12-24 months to complete construction of a closed-cycle cooling system for a medium-sized, 600 MW nuclear power plant. Thus, the DEP permit must also require that construction of the closed-cycle system be complete by July 2008.

Oyster Creek has been degrading the local ecosystem for far too long. A permit representing true environmental stewardship would require Oyster Creek to install a closed-cycle cooling system.