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Quality Assurance For Trenchless Pipeline Rehabilitation. Data and Decisions QA is bigger than a single pipe. By, Andrew Pinello. Today I wish to cover Pipe Data Decision Processes Real world CIPP. Service Area – 204 Sq Miles 15 Lift Stations 33,000 Manholes
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Quality Assurance For Trenchless Pipeline Rehabilitation Data and Decisions QA is bigger than a single pipe. By, Andrew Pinello
Today I wish to cover Pipe Data Decision Processes Real world CIPP
Service Area – 204 Sq Miles • 15 Lift Stations • 33,000 Manholes • 1,640 Miles of collection system pipe • 18 Miles Interceptors (42” – 84”) • 90 Miles Trunk Lines (18” – 36”) • 160 Miles Collectors (10” – 15”) • 1,400 Miles Local Collector (<10”)
Condition Analysis Manhole Inspection, CCTV Inspection & Cleaning Perform Contracting Define Reinspection Schedule Determine Rehab Responses Data Quality Review Rehabilitation QA/QC Inspection Prepare Rehabilitation Design Perform Construction Management Rehabilitation Required No Yes Reject Accept
Gather Data • Methods • NASSCO (PACP) Guidelines • Closed Circuit Television (CCTV) • Structural and O&M Rankings • Consider age of pipe, material, and maintenance history
Defect Grades / Response Codes Assigned • Structural • Cracks, Fractures, Holes, Corrosion, etc. • O&M • Grease, Roots, Obstacles, etc.
Indicates Criticality – Targeted Time Frame for Rehabilitation Response
So now that I know “everything” about this line… What do I do?
Things to consider: • Safety • Access • Work times • What Will Work • Bypass Requirements
Styrene • Are you good with it? Can you answer the questions in public http://www.styrene.org/ http://www.epa.gov/ttnatw01/hlthef/styrene.html http://www.osha.gov/SLTC/styrene/index.html
Become informed about what the finished product will look like. • Compare to previous similar situations • Use contractor submitted examples • Use consultant submitted examples CIPP is a new pipe within the constraints of the old pipe • CIPP is NOT the host pipe • CIPP WILLreflect the host pipe in all aspects • CIPP will NOT change grade
CIPP When data and decisions come together a lot can happen.