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Archive for the ‘Waste Water’ Category

PICA finds a hole in one!

May 31, 2013 1 comment

Last July, we posted a blog about inspecting 4,400 ft of 16-in ductile iron force main in the southern U.S. using PICA’s patented SeeSnake. The resulting condition assessment indicated that the first 550 ft of line was heavily corroded while the remaining line was in great shape. A report was written that provided the remaining wall thickness along with axial and clock positions for the three thinnest pitting regions in each pipe.

Last week, a dig was performed to confirm PICA’s assessment on one of the assessed pipes. PICA predicted a through hole (0% remaining wall) located 2.7 ft from the joint along with two other corroded regions approximately 6 ft from the joint. The excavated pipe contained exactly that.

Knowing that PICA’s technology provides direct condition assessment that works, the client can now make informed decisions regarding their pipeline.

Through hole in Ductile Iron

PICA completes a successful inspection of 12″ FM in Midwest

November 26, 2012 Leave a comment

PICA crew with 12-in SeeSnakePICA was recently entrusted with the responsibility of inspecting 3,000 ft of ductile iron force main for a client on the banks of Lake Michigan. This critical pipeline carries treated wastewater between two plants and was targeted for inspection due to a failure on a parallel pipeline.

To facilitate this inspection, PICA inserted their free-swimming 12″ SeeSnake tool into the line by way of a launch barrel, used the plant’s pumps to push the tool the entire distance, and received it in a catch barrel. To ensure the tool would successfully navigate the pipeline, a gauge pig was run prior to inspection. Calibrations runs were also conducted on site to ensure the best possible data would be collected.

After three days of field work, the PICA team demobilized and sent the data to Toronto where it is currently being analysed.

For more information about this job, contact PICA USA at 1.704.236.3771.

PICA receives “Project of the Year” recognition from Trenchless Technology

November 23, 2012 Leave a comment

PICA is honored to receive the Runner Up Rehabilitation Project of the Year in the October 2012 issue of Trenchless Technology. The award celebrates the successful inspection of a 24″ force main in Raymore, Missouri. With a total circulation of 36,000 readers, the award signals a growing awareness of the benefits of Direct Condition Assessment.

You can read more about this project and the award by grabbing the October issue (they’re free!) or by reading the article online.

Costa Mesa uses PICA SeeSnake on award winning project.

September 14, 2012 1 comment

CMSD Logo

Costa Mesa Sanitary District (CMSD) was recently presented the Avoiding Disasters by Proactively Assessing Sewer Force Main Conditions – INNOVATIVE PROGRAM/PROJECT AWARD by the California Special Districts Association.

As stated in their application, “Sewer force main pipes are ticking time bombs for public agencies”. Aiming to prevent a ruptured force main similar to one that ruptured for a nearby agency (spilling nearly 2.3 million gallons of untreated sewage into three creeks), CMSD employed an innovative process to accurately assess their pipeline.

First, CMSD’s team of experts successfully cleaned 1,500 ft of sewer force mains using poly pigs made of flexible open cell polyurethane foam. No pigs got lodged in the pipeline and there was no disruption of service to customers. Then PICA employed its SeeSnake RFT tool to measure wall thickness. The results have confirmed CMSD’s decision to assess these lines and are immediately making plans to rehabilitate the force main before a sanitary sewer overflow occurs.

CMSD Engineer, Rob Hamers, stated that he has “waited over 30 years for a tool like SeeSnake” and compares it to be equivalent to the invention of the calculator for engineers.

Congratulations to CMSD and their proactive approach to force main management!

PICA inspects 8″ and 12″ force mains in Southern California

August 28, 2012 Leave a comment

Inspecting FMs in SoCalPICA just delivered a final report for two force mains inspected in Southern California. The first line was 300 feet of 12-in ductile iron pipe and the second line was over 1,000 feet of 8-in ductile iron.

The two lines were selected by the client in order to obtain wall thickness measurements of the pipes as well as to assess the reliability and performance of the SeeSnake tools. Each run was accessed via manhole openings and contained multiple bends. The success of this job will allow the client to make proactive decisions about their infrastructure.

 

For more information about PICA’s services, please email us at info@picacorp.com or give us a call. We look forward to hearing from you!

PICA inspects 16-in force main

July 4, 2012 Leave a comment

InspectionLast week PICA completed the field work for a 16-in wastewater pipeline inspection. Located in the southern U.S., this cement lined ductile iron pipe had a history of failure and was a candidate for replacement and up-sizing. PICA was called in to assess the remaining life of the force main by measuring the actual remaining wall thickness of the pipe.

During the inspection, PICA’s SeeSnake Direct Condition Assessment tool traveled 4,400 ft, navigating five bends and crossing under major roadways.

The data is now in the Toronto office being analysed and a report will be issued shortly. For more information about this project and how PICA can improve your Asset Management plan, give us a call – we are happy to help!

PICA paper receives a 97% rating at NASTT No-Dig in TN.

June 22, 2012 Leave a comment

Many companies can offer an extensive list of the pros (many) and cons (few) of their technologies. No doubt, they are even true. Personally. I like to see case studies that give more practical information including a description of why the technology was needed, what pipeline or tool adaptations needed to be done to facilitate  using the technology, challenges faced (and hopefully overcome) and what the results were. And case studies usually provide a story-style narrative that makes it a better read than technology specifications.

Chris Garrett (PICA USA) and Ad Shatat (Russell NDE Systems) presented a paper at the NASTT No-Dig this year that scored in the top 1% of papers presented. Titled “NDE Techniques for Water and Wastewater Pipe Condition Assessment”, it offers two case studies:

  • 30 year old 12-in steel water main in Hong Kong
  • 20 year old 24-in ductile iron wastewater line in Missouri

Both lines were in sensitive areas, had fragile liners that could not be damaged and were inspected using PICA’s free-swimming SeeSnake RFT technologies.

To view this highly rated paper, click here. I am looking forward to the sequel.