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Innovative Solutions for Lead Service Connection and Water Main Rehabilitation

Acuro and Exotec provide unique trenchless services for the rehabilitation of lead service connection lines and adjacent water mains. Using a proven trenchless technology, our award-winning methods restore lead service lines, clean encrusted water mains, and generate significant cost savings compared to replacement. Our epoxy barrier coating process ensures durability and eliminates risks associated with lead contamination. With minimal excavation and non-destructive techniques, our solutions are safe, efficient, and long-lasting.

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Innovative Solutions for Lead Service Connection and Water Main Rehabilitation

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  1. Innovative solutions for the rehabilitation of lead service connection lines and adjacent water mains

  2. Objectives • Restore lead service lines and eliminate risks • Clean water main adjacent to the residence (s) • Use a trenchless technology having a 25 year track record • Use an award-winning water main restoration technology • Generate + 75% savings compared to replacement

  3. Acuro and Exotec are teaming to provide unique trenchless servicesto the potable water industry Acuro specializes in the rehabilitation of water and sewer service connections and inside plumbing Exotec specializes in the cleaning and hydraulic restoration of encrusted water mains

  4. Epoxy Barrier Coating

  5. Work Steps 1 of 6 Project Evaluation • Location • Entry points • System configuration • Cost estimate

  6. Work Steps 2 of 6 Start of operations • Shut water (interior valve or exterior curbstop) • Connect hoses to pipe • At the extremity of the pipe, install dust collector • Complete purge of the line using compressed air

  7. Work Steps 3 of 6 Tracing • Trace all pipe • Measure lengths • Evaluate quantity of epoxy required

  8. Work Steps 4 of 6 Cleaning with abrasives • Heat and dry pipe • Inject abrasives to remove all deposits inside the line • The line is now ready to receive the epoxy

  9. Work Steps 5 of 6 Epoxy coating • Inject epoxy inside the line using compressed air • Cure from 4 to 12 hours

  10. Work Steps 6 of 6 Final Verification • Pressure test and final check to ensure cleanliness and water tightness • NOTE: The epoxy fills small holes • 3. NOTE: the epoxy spreads throughout the ENTIRE inside wall

  11. Benefits

  12. Some Projects…

  13. HUGE Savings…

  14. The method presented by Nu Flow is the only one accepted by DC WASA

  15. Projects for Medical Centers… Fresenius Medical Care Jay Poswolsky Dialysis Services Division-FDMS 95 Hayden Ave. Lexington, MA 02420 781 402-9000 Renal Care Group Mid America Jay Poswolsky & Marco Zerega Four Westbrook Corp. Centre Suite 620 Westchester, IL 60154 USA 708 836-3821 Baptist Health Center Joyce Blackerby Director of Real estate Baptist Health Systems 817 Princeton Ave.SW Suite 112 Birmingham, AL 35211

  16. Avantages • No Excavation - Quick A few hours per service line restored • Durability – Fills small holes Tested to last 100 years, guaranteed for 10 years • Low cost + 75 % savings compared to replacement • Non destructive - No demolition Landscape and sidewalk stay untouched • Safe Epoxy is NSF certified

  17. Sample Project Description

  18. Work Sequence • Survey project site including location of service connection lines, water main, hydrants and valves

  19. Work Sequence 2. Identify lead service connection lines 3. Evaluate ‘C’-Factor (Hazen-Williams coefficient) OR Video inspection of water main

  20. Work Sequence 4. Confirm water main structural integrity (breaks history, etc.) 5. Install temporary water supply for residents (if required) 6. Excavate access pit 7. Clean service line using Nu Flow 8. Clean water main using Exotec

  21. Water Main Cleaning and C-Factor Restoration Veloce Plus Before After

  22. Work Steps 1 of 5 Preliminary preparation (a few days before start of work) • Public notices to residents affected by the work • Excavation of access pit by the utility

  23. Work Steps 2 of 5 Start of Work • Measure static - dynamic pressure, test water quality and isolate water main • Remove one (1) meter long section of water main to insert cleaning equipment • Video inspection to document water main initial condition • Optional: Close service connections

  24. Work Steps 3 of 5 Clean Water Main • Insertion of hose and low-pressured water • Remove sediments including those from the cleaned service connection line

  25. Work Steps 4 of 5 Passivation • Following cleaning, video inspection of water main to document results • Replace one (1) meter long section • Inject passivation and disinfection solution • Soaking for 2-4 hours. • NOTE: Proprietary passivation solution prevents the occurrence of discoloured water following cleaning ENV EXOTEC PASS passivation solution is NSF/ANSI Standard 60 certified

  26. Work Steps 5 of 5 …back in service • Flush water main to remove passivation solution • Measure chlorine and turbidity • Open all valves and restore service to residents • NOTE: Lab test, if required, is optional

  27. Safeguarding our infrastructure THANK YOU Toll free: 1 866 330-6832 www.acuro.cawww.exotec.ca

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