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August 1, 9-10 a.m.
Renovation of an 80-Year Old Water Plant Linda Pass, Stantec Approved for 1.0 credit hour for Water, and PE Webinar Description: In 2014, Hardin County Water District No. 1 initiated a water quality modeling and capital improvement planning study of the 7 MGD Fort Knox Army Base water distribution system to resolve water quality issues and low pressures from eight existing water storage tanks. The water quality study recommended the replacement of the 8 existing elevated storage tanks with two new tanks at a significant cost savings to the District ;which was used to fund renovation of the Ft Knox Muldraugh WTP. Built in the 1940 , the Ft Knox Muldraugh WTP was in poor condition with aged, undersized, and extremely deteriorated mechanical, architectural, HVAC, plumbing, and electrical systems ;and a not-so-good reputation of producing water with taste and odor problems. The renovation of this lime softening treatment facility was challenging due to the extent of deferred maintenance and deterioration. Muldraugh WTP process treatment design included plant data review, hydraulic analyses, unit process evaluations, chemical storage volumes and feed rates, chlorine contact time, and finished water hydraulic grade line modeling for the new storage tanks. Preliminary investigations identified many issues and established the path forward for plant renovation. Improvements included cascade aeration; rapid mix; raw water metering; flow splitting, lime softening/clarification; pH adjustment; sedimentation basin finger troughs; filter air scour underdrains, blowers, and dual media replacement; new high service pumps and valves; chemical bulk storage and feed systems (PAC, high-density lime, alum, carbon dioxide, sodium hypochlorite, fluoride, liquid ammonium sulfate), and new electrical, instrumentation and SCADA systems. Special designs included cascade aeration, flow splitting/metering between two differently sized treatment trains, high-density lime feed to minimize scaling, tunneling of a pipe under a sedimentation basin slab, partial replacement of severely deteriorated cast iron filter piping, restoration of two lime softening clarifiers, and extensive concrete repairs. In addition to process improvements, the 1940 Operations Building was gutted and retrofitted with new control room, lab, offices, roofing, doors and windows, HVAC, plumbing, electrical, SCADA, access control and security system, and other sitework. This presentation will discuss the Muldraugh Water Treatment Plant renovation challenges. The presentation will not only provide some of the highlights of project, from planning through design, but also focus on lessons learned, design challenges for an active Army Base with high fluctuations of troop levels, and a creative means of supplying water to the Base during plant shutdown for construction.
Pricing: - Cost is $30 per attendee.
Webinar Information and Requirements: Webinar Technical Requirements - NC One Water will provide each attendee with the link to access the webinar and call-in audio instructions. NC One Water is not responsible for technical support before, during or after the webinar.
- Attendees must ensure that they have the needed equipment, that it is functioning, that it is compatible with the webinar system and that they know how to use it.
- Refunds will be handled according to NC One Water’s current seminar refund policy and will not be issued for attendees that experience technical or equipment failures during the webinar.
- NC One Water webinars are conducted using Zoom. It is highly recommended that you test your computers compatibility before planning to attend a webinar. How-to videos and additional Zoom resources can be found here: https://learn-zoom.us/show-me.
- To participate in the webinar, you must have access to a computer with an internet connection AND an audio connection (phone line or VOIP connection). It is recommended that you participate from a semi-private, quite location where there will be few distractions.
Webinar Continuing Education Units Requirements - Attendees must be on camera at all times during the presentation. Visibility and participation will be monitored. Failure to participate and be visible will result in no CEUs being given.
- Attendees must pre-register and provide a valid certification numbers issued by the NCWPCSOCC, NCWTFOB or NC Professional Engineers.
- Attendees must be logged in at the beginning and must remain logged in through the end of the session. Attendees must promptly respond to brief quizzes that appear randomly throughout the webinar.
- Each attendee must be logged into a separate computer so that their participation may be accurately tracked.
- No partial credit will be given.
- After the webinar, NC One Water staff will email CEU documentation/certificates to attendees meeting the CEU requirements. Reports will also be sent to the appropriate certification boards.
- NC One Water will report all cases of fraudulent attendance to the appropriate licensing boards.
- Inability to complete CEU requirements due to technical difficulties will result in no CEU’s being issued.
Contact Hours: - Water Treatment Facility Operators, Distribution Operators, Cross Connection/Backflow Operators: This seminar is approved for 1 contact hour for continuing education by the NCWTFOCB. Course ID: 230129.
- Professional Engineers: This course is approved for 1 PDH.
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