July Newsline: Steelmakers take on China; Bobcat plants idle; new AWWA publication

July 2009 Vol. 64 No. 7
AEM Construction Challenge winners

Bobcat spokeswoman Laura Ness Owens said salaried workers, including research and development and engineers, will remain at work during the suspensions. The company still plans a trade show in mid-June to showcase its newest products.
Bobcat is owned by Doosan Infracore International, a subsidiary of South Korea-based Doosan Infracore.

AWWA publishes Math for Wastewater Treatment Operators

The American Water Works Association (AWWA) has announced the publication of two new guides for wastewater treatment operators: Math for Wastewater Treatment Operators: Grades 1 and 2, and Grades 3 and 4.

Most water and wastewater operators cite math as the subject that gives them the most trouble on their certification exams and on the job. Math for Wastewater Treatment Operators Grades 1 and 2 and Grades 3 and 4 were written to provide students and operators with a focused way to prepare for the many challenging math problems likely to be encountered on certification exams. The books also serve as easy reference guides to common calculations wastewater operators encounter every day on the job.

Actual certification exam questions were used to develop the many problems in these essential guides, and each book offers hundreds of math problems and solutions covering the full spectrum of wastewater treatment operations. Appendixes include common conversion factors, a summary of wastewater treatment equations, chemistry tables, wastewater flow chart diagrams, and more.

All grade levels of Math for Wastewater Treatment Operators are available in AWWA’s online bookstore at www.awwa.org/bookstore.

Leigh A. Cerda recipient of the Sidney L. Allison Award

Leigh A. Cerda, P.E., a project manager and engineer with more than 100 sewer system evaluation and rehabilitation projects, received the Sidney L. Allison Award by the Water Environment Association of Texas (WEAT). This honor is presented each year to a person who has made significant contributions to the engineering, science, and/or operation and maintenance of wastewater collection and pumping stations with the mission to transport wastewater to a treatment plant.

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