This class will teach the participants how to effectively flush a water distribution system using unidirectional flushing techniques. Whether used for routine maintenance or as a response to water quality issues, unidirectional flushing ensures that impurities in the distribution system are effectively removed. It also identifies problems such as closed valves and poor hydraulic capacity that can affect water quality and delivery. Subjects covered include basic distribution system hydraulics, flushing program objectives, tool and equipment requirements, valve and hydrant operation, flushing program design, dechlorination criteria, data collection, customer relations and flushing problem solving. The students will apply the knowledge gained by working in teams to design a unidirectional flushing program for a small distribution system.
Upon the successful conclusion of this workshop, the participant will be able to:
1. Explain the objectives of a flushing program.
2. Discuss the basis for determining the location and frequency of flushing.
3. Explain the flushing process, including:
A) Personnel, material and equipment requirements
B) Mechanics of field operations.
C) Dechlorination requirements and techniques.
4. Describe the customer relations requirements of a flushing program.
5. Give examples of typical problems that can be encountered and their solutions.
6. Develop a workable plan for conducting a flushing operation.
7. With at least 70% accuracy, answer the questions provided in the review test
Course Instructor: Glynn Stoffel, CET
President of GLS Environmental Associates, a full service training and operations consulting company serving the water utility sector.
Glynn served from 1994 until 2004 as the Utility Maintenance Superintendent of the Anne Arundel County (Md.) department of Public Works, where he was responsible for managing, maintaining and upgrading the County's 1100 mile water distribution system.
Prior to 1994, he was Manager of Anne Arundel County's Collection System Evaluation and Rehabilitation Division.
His experience in water and wastewater systems has evolved through a structured progression of job activities which included plumbing, industrial well drilling, equipment operation, system maintenance, plant operation, and utility maintenance management.
EDUCATION: B.S., cum laude, University of Baltimore, 1991. Business Administration;
Anne Arundel Community College, 1984. Civil Engineering Technology.
LICENSES and CERTIFICATES: CET (Certified Environmental Trainer); State of Maryland Operator Certifications in both Wastewater Collection and Water Distribution.
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