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Flushing Bay CSO Retention Facility—Hydraulic Performance Evaluation

机译：冲洗湾CSO保留设施-液压性能评估

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The New York City Department of Environmental Protection (DEP) constructed an underground, 43 million gallon (MG) retention facility to reduce combined sewer overflows (CSO) to Flushing Creek and Flushing Bay from the Kissena Corridor portion of the Tallman Island Wastewater Pollution Control Plant (WPCP) service area. To represent and evaluate the performance of this facility, the existing Tallman Island sewer system model was updated to account for the storage provided by the retention facility through the operation of its influent sluice gates, screening channels and dewatering pumps. The model was calibrated using hydraulic data monitored at various locations around the facility. The calibrated model is now being used as a tool to develop information for permit-reporting requirements to New York State for post-construction monitoring of the facility's performance and as a tool in an ongoing study to assess alternatives to maximize conveyance of wet-weather flow for treatment at the Tallman Island WPCP. This paper summarizes the model refinement around the facility, calibration and application to meet the above goals.
机译：纽约市环境保护局（DEP）建造了一个地下4,300万加仑（MG）的保留设施，以减少从塔曼岛废水污染控制厂的基塞纳走廊部分到法拉盛克里克和法拉盛湾的下水道溢流（CSO） （WPCP）服务区。为了表示和评估该设施的性能，对现有的塔尔曼岛下水道系统模型进行了更新，以说明保留设施通过其进水闸，筛选通道和脱水泵的运行所提供的存储量。使用在设施周围各个位置监视的液压数据对模型进行了校准。校准后的模型现在被用作开发信息以向纽约州报告许可证要求的信息的工具，以对设施的性能进行施工后监控，并在进行中的研究中评估替代方案以最大程度地提高雨天流量的传递。在塔曼岛WPCP接受治疗。本文总结了围绕设施，校准和应用的模型改进，以实现上述目标。

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