Inspection of Multiple Small Municipal Systems

Client: 
Township of Oro-Medonte
Contact: 
Lisa McNiven, Director of Engineering Services Township of Oro-Medonte Phone: 705-487-2171
Brief: 
Video Inspection and Well Performance Testing
Year: 
2006-2008
Project: 

The Township of Oro-Medonte operates over 20 small municipal water systems serviced by one or more wells.  The well systems are between 15 and 40 years old with many lacking basic well construction and equipping details.  The Township is in a process of conducting individual detailed well inspections and performance testing to document basic performance details and well construction information.  Lotowater has completed investigations of fourteen (14) Township wells since 2006.  This is an ongoing project that will extend for up to 5 years.

 

Well & Pump Equipment Performance Testing
Lotowater has conducted basic well and pump performance tests of 14 wells since 2006, including step drawdown tests, pump performance tests, motor current & insulation tests, sand tests and turbidity testing.  After testing each pump was removed and all equipment was and carefully inspected.  Make & model numbers, serial numbers, dimensions, and general condition were carefully documented.  After each inspection all equipment was disinfected, reinstalled, purged to waste and then retested to confirm satisfactory operation.


Video Inspections
Detailed video inspections were undertaken at each location to document well conditions after removing the pumps.  Lotowaters Laval R2000 camera provided higher video quality compared to previous well videos and revealed heavy biological and mineral buildup in several of the wells inspected.  The camera also identified the major water producing fractures in the several of the bedrock wells. 


Preparation of Detailed Well Reports
Stand alone reports were prepared for each site for the Townships records.  This included as-constructed drawings, well performance test records, a DVD copy of the well video and a brief narrative of the testing process including recommendations.    Well performance details were compared with as-constructed well records and identified wells that showed reduced performance and signs of plugging.  These wells can now be scheduled for rehabilitation once budget monies are available.  Pump performance was compared to manufacturer’s specifications and pumps that were not meeting spec can be scheduled for replacement.  Lotowaters efforts greatly exceeded expectations as this testing has given the Township a detailed record of each well and equipment with recommendations for maintenance based on observed data.