TAC Luncheon: Hot N Cold: Finding I/I Sources with Lasers 12/18/2025
A major challenge for any I/I reduction program is the ability to accurately locate significant sources of I/I in order to cost-effectively remediate them. Reviewing flow monitoring data, including temperature, reveals that I/I can have dramatic hot or cold influences on liquid temperatures and can provide key insights on I/I quantities. Distributed Temperature Sensing (DTS) technology combines a laser light-emitting source with a fiber optic cable that is placed in the sewer system and in contact with the wastewater. DTS gathers high-frequency (time and space) measurements of temperature, highlighting where significant I/I is entering the system during a wet weather event. Case studies will be presented that demonstrate the benefits of using such data to optimize a sewer rehabilitation program for I/I reduction.
Presenter:
As BC’s National Wet Weather Practice Leader, Andy Lukas is engaged on strategic projects across the country that are driven by state and federal consent orders related to wet weather compliance issues. He provides solutions for issues ranging from flow metering, hydraulic modeling, inflow and infiltration (I/I) reduction, sewer overflow control, regional solutions, system planning, long-term capacity assurance, and overall wet-weather regulatory strategy.
Registration:
A $15 registration fee applies to all attendees. This is reduced from our typical registration amounts to reflect the event's online nature. Registration and payment for TAC luncheons will be handled at TAC Registration. Registration may be made for a single attendee or for multiple attendees in a group. It is requested that each individual in a group either register individually or be included in the count for a group registration, and that multiple parties not participate in the presentation without registering. If, for some reason, you are unable to register online, please contact Steve Polson by phone (303-748-0931) to arrange payment by check or cash.
The registration deadline for this event is Wednesday, December 17, at COB. We will send out the link for the luncheon to the email addresses per the registration site by the end of the day on Wednesday. If you registered a group, please pass along the link to the members of your group. Please note the Teams program does not need to be installed on your computer to participate. When you click the link provided in the email, an option to participate through your browser is offered. There will also be a call-in number, but it is hoped that nobody is forced to do that, as you will only receive the audio in that case. If you registered but do not receive the email on Wednesday, please call Steve Polson (303-748-0931) on Thursday morning to determine how to obtain the link.
The program will start at 12 noon sharp. Please be sure and connect before 12 noon to avoid missing anything. Location: Virtual
