Quality Assurance For Trenchless Pipeline Rehabilitation Data and Decisions QA is bigger than a single pipe. Intro Andrew Pinello Colorado springs By, Andrew Pinello

Today I wish to cover Pipe Data Decision Processes Real world CIPP

1,640 Miles of collection system pipe 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”) This is how I see our system

Define Reinspection Schedule Condition Analysis Rehabilitation Required No Manhole Inspection, CCTV Inspection & Cleaning Yes Determine Rehab Responses Define Reinspection Schedule Reject How it all begins, ends and begins Data Quality Review Prepare Rehabilitation Design Rehabilitation QA/QC Inspection Perform Contracting Perform Construction Management Accept

Gather Data Methods NASSCO (PACP) Guidelines Closed Circuit Television (CCTV) Structural and O&M Rankings Consider age of pipe, material, and maintenance history Adherence to NASSCO PACP Proper codes Rate of speed Flow level in pipe Picture quality

Defect Grades / Response Codes Assigned Structural Cracks, Fractures, Holes, Corrosion, etc. O&M Grease, Roots, Obstacles, etc.

Indicates Severity – Structural Damage or Defects Condition Grades Definitions 1 Excellent: Minor defects (failure unlikely in the foreseeable future) 2 Good: Defects that have not begun to deteriorate (pipe unlikely to fail for at least 20 years) 3 Fair: Moderate defects that will continue to deteriorate (pipe may fail in 10 to 20 years) 4 Poor: Severe defects that will become Grade 5 defects in the near future (pipe may fail in 5 to 10 years) 5 Immediate Attention: Defects requiring immediate attention (pipe has failed or will likely fail within the next five years) Numbers represent time.

Indicates Criticality – Targeted Time Frame for Rehabilitation Response Response Codes Schedule A Requires immediate attention B Requires near term repairs or maintenance in 90 to 180 days C Requires repairs or maintenance to be completed within 1-2 years D Re-inspect within 3-5 years E Perform a re-inspection within 15 years of the initial inspection. Letters represent condition.

Discuss the culmination of history and observation and how it can be leveraged.

So now that I know “everything” about this line… What do I do? Run what you want to do through the constraint tools and see what you will do. Cost of point repairs vs. replacement.

Things to consider: Safety Access Work times What Will Work Bypass Requirements A few images to keep in mind during decision making

Can you answer the questions in public Styrene Are you good with it? Can you answer the questions in public Tell first hand why “I was told” isn't good enough 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 WILL reflect the host pipe in all aspects CIPP will NOT change grade

Replacement can make more problems than it solves What we want to avoid

The camera only shows what the operator looks at… Why The camera Lies

Hospital 6” Before

Hospital 6” after

Before

After

CIPP When data and decisions come together a lot can happen.