WATER MAIN REHABILITATION Extending & increasing the value of your assets for decades Spray-Applied ANSI/NSF61-5 Polymeric Resin (Polyurea)

Common Water Infrastructure Problems Corrosion Reduces flow and pressure Reduces water quality Fatigue Leaks and breaks through: Soil type Aging Temperature variations

Spray-Applied Lining Spray hose up to 150 meter length Number of spray passes (1mm each) determines the level of protection desired from non, to semi, to fully structural.

Modern and ‘’green’’ Technology Spray-Applied Polymeric Resin Atomizing plural components BEFORE spraying enhances structural properties

About Spray-Applied Polymeric Resin 100mm (4’’) diameter and above, larger diameters sprayed by hand (pipes, manholes, …) Currently, design calculations are ASTM F1216 to determine liner thickness 7 seconds snap cure, bonds to the substrate No intercoat delamination detected in any spray applications. If only partially completed after 8 hours, suggest mechanical abrasion to lining in place to insure proper adhesion Ring stiffness, resistance to vacuum C-Factor: 110 or higher, 10% elongation, not brittle

About Spray-Applied Polymeric Resin Burst: exceeding 150 psi internal pressure (ie. 3mm thickness, 150mm) Withstand external load and groundwater Bonds to the host pipe (pull test in excess of 1 500 psi) Excellent sealing of service connections Life extension: decades, according to real life testing 3rd party testing:

Independent Test Programs for ASTM F1216

New ASTM Standard Acuro is part of the research group working on the development of the new ASTM WK23937 Standard

May 2009 EPA State of Technology Report http://www.epa.gov/nrmrl/pubs/600r09048/600r09048.pdf

EPA May 2009 Technology Report

SUMMARY OF PROJECT WORK STEPS

Project Area

Bypass System Bypass installed on both sides of the street

Water Main Characteristics Dark spots show Bitumen After cleaning, we noticed that the walls were coated with bitumen. Location: Barnardo and Lee Streets Diameter: 150mm (6in.) Material: Ductile iron Length: Approximately 225 meters in total Historic: Some water quality complaints, … About two months later, we lined an additional 120meters of 125mm diameter (5’’) water main

Resin Projection In the access pit… Spray gun Spray hose

In the field… Cleaner CCTV Spray rig Power rig Utilities Pit

In the field…

Standard Project Start Temporary Bypass Access pit at both ends Clean water main using pressurized water or scrapers

Dry Pipe Dry wall Damp wall Air flow Pressurized air

Patching holes (when needed) Install pipe patch to cover apparent holes prior to spray

Structural Assessment (Optional) Electromagnetic probe (Eddy Current) inserted along the entire length of the water main determines wall thickness loss Wall thickness loss

Results in Peterborough

Results in Peterborough Summary % Wall Thickness Loss

Work Steps 1. Cleaning 2. Assess 3. Rehabilitate Water Main Rehabilitation - CARE Work Steps 1. Cleaning 2. Assess 3. Rehabilitate AWWA Classes: 4 3 2 1

Spray-Applied Equipment

Spray-Applied Technology

Spray-rig software provides results for each spray Computerized Control Cataloging spray applications Spray-rig software provides results for each spray

Pipe Lining Results

Natural waving inside PVC pipe Acuro Polymeric resin lining Our Goal to Achieve a Smooth Interior Wall Natural waving inside PVC pipe Acuro Polymeric resin lining

Service Connections

CCTV Inspections & Cutter Stand-alone camera & cutter

Service Restoration Water main disinfection and flushing Hydraulic readings and pressure testing Water sampling and testing Service and site restoration

Benefits & Costs Savings Non, semi, or fully structural liners Seals service connections Adds decades of service Benefits Stops leakage / breaks Increased pressure / flow and water quality Costs Savings Reduced emergency repairs High savings vs replacement 100% Renewable Minimal C02 emmissions Minimal public disruption

THANK YOU QUESTIONS? Ottawa – Montreal – U.S. (Ohio, Michigan) www.acuro.ca