Leak Detection of Critical Watermains in the City of Hamilton

Transcription

1 Leak Detection of Critical Watermains in the City of Hamilton Chris Martire, Robinson Consultants Inc. Michael Zantingh, City of Hamilton TRENCHLESS TECHNOLOGY ROADSHOW May 28-29, 2014 Scotiabank Convention Centre, Niagara Falls, ON

2 Introduction Critical water distribution network consists of: 74 km (46 miles) of PCCP (cyan) 101 km (63 miles) of Metallic (blue)

3 Introduction The City s water distribution network consists of 2015 km (1250 miles) of watermains The City has completed the Risk Ranking of its Metallic (Cast Iron and Ductile Iron) and PCCP watermains prioritize their assessed condition in order to rank pipelines based on their assessed level of risk Initiatives underway within the City Leak Detection of Critical Network of watermains Condition Assessment of PCCP watermains

4 Leak Detection Technologies Smartball Leak Noise Correlators LDS 1000 Sahara

5 Important to the City Five Key operational elements: 1. Minimal impact on operations 2. Completed within a reasonable length of time 3. A reasonable cost for the product, 4. The level of detail for leak location and size 5. Additional services such as available CCTV

6 RFP Document Scope 1. The work is to be executed without alteration or gaining internal access to the watermains and is to involve minimal to zero operational impact to the City. 2. Term of Contract: (km110 miles) 4. Size range: 5. Large Valve Chamber inspection 1 year + ( 1 + 1) years?? 2250 mm (90 inch) 400 mm (16 inch)

7 RFP Scope Specs 1. Minimal impact 2. Length of time 3. Cost for the product, 4. The level of detail 5. Additional services 1. Executed without internal access and negligible operational impact 2. 3 year Contract km (110 miles) 4. Size range: Valve Chamber inspection

8 RFP Specifications The work is to be executed without alteration or gaining internal access to the watermains and is to involve minimal to zero operational resources.

9 RFP Components The RFP called for the deployment of Leak Detection inspection equipment broken down into four primary components: Mobilization Pre screening Data Acquisition Data Analysis

10 RFP Doc Deliverables Monthly Status Report 24 Hour Report Pipeline Leak Detection Report

11 Monthly Status Report Summary of the work accomplished to date Description of project activities Summary of findings to date Overall status of the project Indicates whether program is on track and on schedule

12 24 hour Report A report to the City within 24 hours of the identification of a leak of sizeable magnitude that should be addressed immediately by the City and include as a minimum: Leak parameters: location, magnitude, watermain material and diameter; Provide on site assistance to the City as requested; Other information deemed necessary.

13 Pipeline Leak Detection Report Summary of analyzed data from Pipeline Leak Detection: Results of the Leak Detection inspections Spreadsheet and charts showing the distribution of located leaks along the watermain GPS coordinates of all suspected leak locations Results of valve chamber visual inspections

14 Contract Award Leak detection program intended as a scanning tool to assess risk and prioritize capital investment Address the 5 key operational elements Contract awarded to Echologics Leak Noise Correlators

15 Leak Detection Deployment Pre inspection of all valve chambers from this To this

16 Valve Chamber Inspection Condition of valve chambers Condition of valve chambers after cleaning

17 Leak Detection Deployment Web based progress tracking

18 Leak Detection Deployment Simultaneous Leak detection of watermains Few expected with PCCP Several expected with CI and DI

19 Equipment Set Up

20 Leak Detection Inspection Results April/14 Leak Description Estimated Water Loss (gpm) 1 Water leaking from storm drain hitting the pipe Unknown 2 Leakingwater service off of main branch Unknown 3 LeakingAir Release Valve 1 4 LeakingAir Release Valve 1 5 Leaking Air Release Valve Corporation Stop within chamber 5

21 Progress to Date Project Start Date: November 11, 2013 Current Period: March 21, 2014 to May 1, 2014 Parameter Chambers Inspected Quantity of Pipelines DI pipe CI pipe PCCP pipe Summary m 8,486 m 19,318 m

22 Thank you Chris Martire, Robinson Consultants Inc. Michael Zantingh, City of Hamilton