本文介绍了三种用于控制藻类和减少对纽约杰维斯港市水库供水系统运行影响的技术。它们包括:人工破坏分类；养分截留；以及深度修改。每一种都对其在降低磷、铁和锰方面的有效性进行了评估。磷的减少会直接影响Port Jervis系统中的藻类生长，而铁和锰会影响处理的美观质量和效率。评估表明，终端水库的破坏等级和上游水库的排水深度的修改相结合可能提供最大的水质效益；然而，与预期效益相比，建设成本很高。

This paper describes three technologies used to control algae and reduce operational impacts for the City of Port Jervis, New York, reservoir water supply system. They include: artificial destratification; nutrient interception; and, withdrawal depth modification. Each was evaluated for its effectiveness in reducing phosphorus, iron, and manganese. Phosphorus reduction directly affects algal growth in the Port Jervis system, and iron and manganese affect aesthetic quality and efficiency of treatment. The evaluation indicated that a combination of destratification of the terminal reservoir and modification of the withdrawal depth of upstream reservoirs may potentially provide the greatest water quality benefit; however, construction costs are high compared to the expected benefits.