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AC17: Operations Challenge
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17th Annual Operations Challenge

Monday, November 13, 2017
8:00 a.m. Pre-competition Meeting
9:30 a.m. - 4:00 p.m. Maintenance, Safety, Collections, and Laboratory Events
Tuesday, November 14, 2017
9:00 a.m. Process Control Event
5:30 p.m. Awards Presentation at Gavel Gala

Thank You








In the Operations Challenge events, four person teams, along with their coach, compete in events that challenge their skills in various wastewater related
activities. The winner is determined by a weighted point system. At the national WEFTEC competition, there are five events in the Operations Challenge: collection system event, laboratory event, process control event, pump maintenance event, and the safety event. The 2017 North Carolina Operations Challenge Competition will include all five of these events.


The Collections System Event simulates the repair of a damaged 8-inch PVC sewer pipe, and the connection of a 4-inch sewer lateral, using an Inserta Tee fitting, while the 8-inch pipe remains in service. The event also simulates the installation and programming of an automated Hach AS950 composite sampler, to collect a composite sample of the “flow” in the 8-inch pipe.


The Maintenance Event simulates the failure of one pump in a duplex lift station, and the full servicing of a trailer mounted Godwin Dri-Prime NC80 pump. Once the pump service is complete, the Godwin Pump is temporarily connected to the lift station, and programmed for automatic operation with the use of a level probe.


The Laboratory Event simulates analyzing a series of process control samples for pH, alkalinity, and ammonia using Orion instruments. Once the samples have been analyzed, the teams must perform process control calculations to determine if sufficient alkalinity is in the treatment system to sustain nitrification.


The Safety Event simulates a confined space entry to repair a check valve. During the confined space entry, a worker collapses in the confined space, and a confined space rescue must also take place. The repairs to the check valve must continue on, while the rescue of the collapsed worker is carried out. This event uses a XTRIPA system to facilitate the confined space entry and rescue.


The Process Control Event is a timed event giving the teams an opportunity to demonstrate their accumulated knowledge and skill in the areas of laboratory procedures, collections system operation, maintenance, safety, and troubleshooting. The process control event will split the teams into two-person groups, with one group completing a thorough written test including multiple choice questions and short math questions, while the other group uses Hydromantis simulation software to complete complex operational scenarios on a simulated wastewater treatment plant.



For Questions Contact

Billy Allen,
Operations Challenge Committee Chair
Phone: (704) 400-7322

Greg Morgan,
Operations Challenge Committee Vice-Chair
Phone: (704) 507-0372


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