Start with the segment list: since the issued Section 33 01 30.72 has no note listing what the drawings must show, confirm that the rehabilitation plans give every segment to be lined by its entry and exit manholes, with host pipe size, material, length, depth of cover, groundwater depth, and the live load above it, because the liner design table takes those values from the plans. Then check that the system kept, CIPP or fold-and-form, the deterioration condition, and the design and testing standards agree, that bypass, set-up, and traffic control fit the site, that point repairs, manhole seals, and service reconnections are located and specified, and that the defect, warranty, and as-built requirements cover both storm and sanitary lines where both are lined.
Assemble the review package
Gather the sewer rehabilitation plans and profiles with every main and manhole ID, the segment schedule with host pipe size, material, length, depth of cover, and condition, the geotechnical report or borings with groundwater levels and soil data, the plans showing roads, rail, taxiways, or aprons over each segment, the engineer’s field investigation report and Pre-TV video with defect codes and active and abandoned services, the point repair drawings, the manhole schedule and any manhole rehabilitation details, the service lateral list, the bypass pumping and flow data, the traffic control drawings and set-up areas, the process water discharge point, the owner’s record drawing requirements, and the issued Section 33 01 30.72 with Section 33 01 30.16, Section 01 78 00, and any manhole rehabilitation section. Follow one segment from its entry manhole to its exit manhole, through design, wet-out, curing, reconnection, sampling, and Warranty-TV, before assuming the others match.
WBDG publishes UFGS 33 01 30.72: Relining Sewers as a public guide-specification reference (accessed November 11, 2026). Use your project’s issued specification and amendments for the actual comparison; the guide specification does not automatically govern your project. The checklist below is an original suggested review workflow, not a reproduction of the UFGS requirements.
Eight checks to run against the issued set
Use one record per location or system. The CSV contains the same eight prompts plus fields for source revisions, observed evidence, the review owner, the decision, and closure references.
| Check | Sources to compare | Question to resolve |
|---|---|---|
| Segments, host pipe data, and the system chosen | No drawing note + opening note (storm and sanitary; CURED-IN-PLACE PIPE or FOLD-AND-FORM PIPELINER tailoring) + System Description + Performance Requirements (full length, entry to exit, manhole to manhole) + CIPP Structural Requirements (fully or partially deteriorated gravity pipe bracket) + CIPP and FFP design tables (groundwater depth and soil depth above the crown as specified or indicated on the plans; highway, railroad, or airport live load; ovality as measured) + rehabilitation plans, profiles, segment schedule, and borings | Does every segment to be lined appear on the plans or in a schedule with its entry and exit manholes, host pipe size, material, length, depth of cover, groundwater depth, and the live load above it, since the design tables take those values from the plans but the section has no note asking for them, is one system kept, CIPP or fold-and-form, and has the designer chosen the fully or partially deteriorated condition from the field investigation for each segment? |
| Liner design, thickness, and calculations | CIPP Structural Requirements (calculations sealed by a registered engineer under ASTM F1216 Appendix X1; one design per diameter for the most severe condition; calculated and proposed thicknesses; a minimum thickness list by size and depth; no bond to the host pipe) + properties and design parameter tables (soil modulus by AASHTO LRFD Section 12 and AWWA M45) + FFP Structural Requirements (calculations to the F1216 appendix, then wall thickness to ASTM F1504 and F1533; manufacturer’s modulus retention) + Tolerances (flow capacity not less than the original; thickness tolerance) + Engineering Design Calculations and Resin To Tube Ratio submittals | For segments larger or deeper than the minimum thickness list covers, do the plans give the depth and loads the calculations will rely on, which AASHTO edition governs the soil modulus, since the References article lists none, for fold-and-form, which standard governs the design, since the paragraph cites the CIPP appendix and then two material standards, and do the plans give the slope and flow data needed to show that the lined pipe keeps the original capacity? |
| CIPP tube, resin, wet-out, and curing | Fabric tube (ASTM F1216, F1743, D5813, F2019) + Resin-Impregnated Tube (inversion) and Thermosetting Resin Pipe (pull-in) notes and articles + Resin (premium resin, no fillers, no quick-cure systems measured against a “specified time” the section does not set) + Product Data, Test Reports (IR analysis), and Certificates (wet-out forms by work order and manhole numbers) + CIPP installation (sensors at the invert and at heat sinks; UV light train readings; temperature and curing logs per segment) + tube paragraph (field-measured length and inside diameter before ordering; light reflective interior; tube markings; thickness increments) + Liner Manufacturer | Do the wet-out forms, curing logs, and samples use the same manhole and segment IDs as the plans, are the heat sinks the sensors must cover, groundwater, creek crossings, and cold structures, located, which installation method and cure is intended, since the resin and tube paragraphs cite a glass-reinforced pulled-in-place standard and one item addresses UV curing but no tube article covers that system, and what cure time the quick-cure limit is measured against? |
| Fold-and-form materials, processing, and testing | Delivery marking (diameter, cell classification, DR, ASTM designation) + Fold-And-Form Poly (Vinyl Chloride) Pipe (ASTM F1871, F1867, or F1504) and Polyethylene Liner (F1606 or F1533) + FFP installation (temperature sensors; F1867 or F1606) and finish + FFP Tests (ASTM F1871 and F1504 only; sample locations shown on as-built drawings; Contracting Officer’s location for large pipe) + FFP Inspection (non-destructive thickness; leakage against local tolerances for new sanitary sewers) + Quality Control Laboratory (certified to a list of CIPP-related standards) | Where fold-and-form is kept, is the liner PVC or polyethylene, and if polyethylene is allowed, which standard the samples are tested to, since FFP Tests names only PVC standards, does the Quality Control Laboratory paragraph name the standards the FFP samples are tested to, and for storm lines, what leakage basis applies, since the inspection paragraph refers to new sanitary sewer tolerances? |
| Bypass, set-up, traffic, and process water | Scheduling + Traffic Control (plan where access manholes are in or beside a road) + Set-Up and Sequence (bypass plan in advance; sequence plan with set-up locations coordinated with traffic control) + Sewer Flow Control (plug or bypass; spill response) + Bypassing Existing Sewage Flows (capacity for peak flows; service plugs not left overnight; tested under full operating conditions; for CIPP, bypass held until cured, cooled, televised, and ends finished) + Environmental Requirements and Disposal of Process Water + Project/Site Conditions + bypass, flow, and site plans | Do the plans or the contract give the peak flows the bypass must carry, the upstream manholes, force mains, and lift stations it must handle, and the set-up areas the sequence plan must use, how are services handled between lining and reinstatement, since the service plugs may not stay overnight while the CIPP bypass is held until the liner is cured, cooled, and televised, and where may cooled process water be discharged? |
| Cleaning, Pre-TV, point repairs, and service locations | Examination (Pre-TV under Section 33 01 30.16 before work) + Cleaning note (ends mid-sentence) and article (clean to Section 33 01 30.16; remove roots, deposits, and protruding laterals) + Line Obstructions note (most point repairs by open cut) and bracket (open cut or sectional point repair to ASTM F1216) + Protection + Surface Preparation (Pre-TV after cleaning; confirm service locations; the Contracting Officer decides an undefined service) + Installation (stop or bypass flow before cleaning and CCTV) + field investigation report and point repair drawings | Are the point repairs located on the plans with the method kept, and since neither this section nor Section 33 01 30.16 specifies point repair materials, excavation, bedding, or surface restoration, which issued section does, which Pre-TV governs, the one at Examination or the one after cleaning, and do the plans list the active and abandoned services on each segment so the contractor knows which to reinstate? |
| Manholes, end seals, and service reconnections | Hydrophilic Seals + Finish paragraphs (hydrophilic end seals; watertight service connections) + Manhole Connections (seal at the wall; annular space repair material; non-shrink grout or cementitious band; epoxy coating; continuous invert; liner through a manhole keeps its bottom; bench shaped or invert built up) + CIPP Performance Requirements (robotic reopening of active services and others as directed) + Reconnections of Existing Services (after cure and cool down; external tee or internal cut; over-cut repair; coupons collected downstream) + Lateral Connections + manhole schedule and service list | Do the plans show at which manholes the liner runs through and at which it ends, are the manhole wall repair material, grout or cementitious liner, and epoxy coating the Manhole Connections article calls for specified in this or another issued section, since no product article or submittal covers them, and where external reconnections need excavation, are those locations and the restoration shown? |
| Defects, warranty, Post-TV, and as-builts | Inspection and Inspections articles (both call the TV phases under Section 33 01 30.16; Post-TV and repairs before acceptance) + Repair of Defects for CIPP (locate and define defect categories only; warranty CCTV of unrepaired defects) and for FFP (repair; FFP Repair Method shop drawing; Re-TV) + Warranty note (default period in the note only; storm drain commissioning) and Warranty-TV Inspection (start window bracket; Contracting Officer selects locations; repairs per the Repair or Replacement Procedures of the quality control plan) + Inspections (as-built drawings for the sanitary sewer portions and inspection forms after acceptance) + Section 01 78 00 + Section 33 01 30.16 Warranty-TV timing | Is the warranty period stated in an article or the contract, since the section times the Warranty-TV from its expiration but gives the period only in a note, does the CIPP Repair of Defects paragraph require repair and Re-TV as the FFP paragraph does, do the start windows here and in Section 33 01 30.16 agree, and are as-built drawings and inspection forms required for storm segments too and listed as closeout submittals, since the article names only the sanitary sewer system and the submittals list has no closeout item? |
Worked example: CIPP under a taxiway with no cover depth, a UV liner the section never describes, and a sanitary-only as-built clause
Illustrative example: an air station relines a run of corrugated metal storm drain under an aircraft apron and a clay sanitary main under a housing street in one contract, keeping only the CURED-IN-PLACE PIPE tailoring. The rehabilitation plans give manhole numbers and pipe sizes, but no depth of cover, groundwater level, or live load for the storm runs, and one storm run is larger than the minimum thickness list covers. The contractor proposes a UV-cured glass-reinforced liner, which the resin paragraphs allow by citing its standard, but the tube articles describe only felt inversion and pull-in. The issued section keeps the Manhole Connections epoxy coating with no product named, leaves the CIPP Repair of Defects paragraph as printed, gives the warranty period only in the deleted note, and keeps the as-built paragraph for the sanitary sewer system only.
Ask the civil engineer to add depth of cover, groundwater level, and the airfield live load to the segment schedule for each storm run, to confirm the deterioration condition chosen, and to show where the liner ends at each manhole and which services are active. Ask the specifier to add or reject the UV-cured glass-reinforced system explicitly, with its tube, curing, and monitoring requirements, to name the AASHTO edition, to specify the manhole wall repair materials and epoxy coating or name the section that does, to require repair and Re-TV of defects in the CIPP paragraph, and to extend the as-built clause to the storm segments with a closeout submittal, and ask the contracting officer to state the warranty period and confirm that the Warranty-TV windows here and in Section 33 01 30.16 agree.
Avoid a false conflict
Section 33 01 30.72 covers trenchless renewal of existing gravity storm and sanitary sewer pipe with cured-in-place or fold-and-form liners, with point repairs only as a bracketed method. Cleaning and the Pre-, Post-, Re-, and Warranty-TV inspections themselves follow Section 33 01 30.16 and the sewer CCTV guide, new sanitary sewers follow Section 33 30 00 and the sanitary sewer guide, new storm drains follow Section 33 40 00 and the stormwater utility guide, and lift stations follow Section 33 32 16 and the sewage lift station guide, so check those before calling a requirement missing. Some of the section’s own wording needs resolving before it is compared with the drawings: it has no drawing note, its design tables cite an AASHTO publication its References article does not list, the fold-and-form design cites the CIPP appendix and its tests name only PVC standards, the Cleaning note ends mid-sentence, Pre-TV is called in three places, the warranty period appears only in a note, the CIPP defect paragraph never requires repair, the as-built and leakage clauses speak of sanitary sewers in a section that also covers storm lines, the manhole repair materials have no product article, the quick-cure limit refers to a cure time the section does not set, and UV-cured glass-reinforced liners are cited but not described. Ask the specifier which wording the project intends before treating a difference as a design conflict.
When requirements disagree, follow the project’s document-control and clarification process. Do not assume that drawings always override specifications, or the reverse. Identify the exact sources and request an authorized decision.
Close the issue across the affected documents
Record the location or tag, drawing and specification references, issue dates, observed difference, and the decision needed. Assign an owner and keep the item open until the response identifies the governing requirement. Check the revised drawings and specification references together; a response email alone may leave the issued package inconsistent.
For the overall process, use the guide to drawing and specification conflicts. Mark an inapplicable checklist row with a reason, and distinguish a verified correction from a question that still needs design information.
Where Groundbook fits
Groundbook’s drawing and specification review helps investigate potential disagreements in the documents you supply. Include the relevant specification sections and drawing references, then verify the cited evidence with the responsible reviewers before acting on a finding.