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Onondaga Lake RecoveryByCory Gionet

1History

HISTORY22Location of many homes and beach resorts.Great lake for fishing.

NATURAL BEAUTY3POLLUTION ERAAs Syracuse became more industrialized in the late 19th century, factories continuously dumped sewage and waste into the lake.4POLLUTANTS5-Phosphorus from Metro and other sources stimulates the excessive growth of algae in the lake. This decreases the lake's water clarity and eventually causes the loss of oxygen in the lake's bottom waters.

-Ammonia and nitrite are nitrogen compounds which can be toxic to fish and other aquatic life.

-Approximately 6 million pounds of salty wastes, made up of chloride, sodium, and calcium were discharged daily to Onondaga Lake from the Solvay Process soda ash facility

-30 tons a day of sediment from mudboils5EFFECTS6Reduced level of oxygen has a damaging effect on the aquatic plant life which ultimately effects the overall food web and species of fish that are in the lake6THE RESULT

7RESTORATION8891970sClean Water Act in 1972required that all of New York state's fresh waters should be suitable for swimming and the propagation of fish and other aquatic life

The county and the state banned the use of phosphorus in laundry detergents

A lawsuit was filed against Allied Chemical Corporation to stop mercury dumping

An upgrade occurred at the Syracuse solid waste treatment plant (METRO) to improve sewage treatment

Allied Chemical Corporation's chlorinated benzene and Willis Avenue chlor-alkali plants were closed

Studies were conducted on the impacts of industrial wastes, combined sewer overflows and treated sewage

lawsuit soudn proces9101980sUse of best management practices for sewer interception which reduced combined sewer overflow events by 90%

Filing of a complaint against the Onondaga County Department of Drainage and Sanitation by the New York State Department of Environmental Conservation, the New York State Attorney General and the Atlantic States Legal Foundation alleging violation of state discharge permit

Filing of a complaint by the New York State Department of Environmental Conservation and the New York State Attorney General against Allied-Signal Inc. alleging pollution violation and resource damage

Industrial pre-treatment program instituted by the County

Closure of Allied Corporation's soda ash facility

Catch and release fishing reinstatement

Closure of LCP-Hanlin's Bridge Street chlor-alkali plant. filing of complain registrace stnostialleging - obviujc111990sCreation of a "Plan for Action" for the Lake written by the newly established Onondaga Lake Management Conference, a group consisting of representatives from local, state and federal governments

Signing of the Amended Consent Judgment by Onondaga County, which requires the County to upgrade existing sewage treatment system and construct facilities and transport system to comply with permit discharge limits and water quality standards

Modifications to pump station at Liverpool and Ley Creek to eliminate raw sewage overflows

Commencement of aquatic habitat restoration projects in Onondaga Lake

Completion of mudboil remediation projects to reduce flow of sedimentation to Onondaga Creek

amended opraven, zlepencommencement zahjenremediation uzdraven, napraven12PROGRESSSeveral improvements made to Metropolitan Syracuse Wastewater Treatment PlantInsulation of the roofs of digesters #1 and #3 Replacement of three waste-gas burners Ventilation improvements in the digester control house Installation of new instrumentation Replacement of a sluice gate Installation of new piping and overflow weirs in the diversion structure.

sluice gate stavidlo, propus13CONTDAlong with the updates made in the 1970s on the waste water plant, Biological Aerated Filters were installed into plant in 2004 and have accounted for a massive decrease in ammonia in the lake.

Average ammonia-N concentrations in Metro Outfall 001, seasonal basis, 1995-2006

Average daily phosphorus discharge from Metro, 1990-2006 14CONTDThrough new facilities and high-rate flocculated settling, Onondaga Lake has seen dramatic decrease in its phosphorus levels.The system uses coagulation, flocculation (assisted by polymers), and sedimentation (assisted by microsand) to convert the soluble phosphorus to a particulate form that is readily removed. 1415GOALSRestore and maintain the ecosystem of the lake

Allow swimming once again in the lake

Allow fishing propagation again

Allow secondary recreational activitiesAll goals are to hopefully be reached by December 1, 2012 in accordance to the Clean Water Act and Environmental Law.http://www.ongov.net/lake/ol32.htmhttp://www.ongov.net/lake/ol32.htmhttp://www.dec.ny.gov/chemical/8668.htmlWORKS CITED

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