| High | Schedule emergency point repair or replacement of the pipe section from approximately 9 to 12 ft. A grade 5 masonry obstruction at 9.6 ft is immediately followed by a pipe collapse and multiple severe breaks at 11.5–11.7 ft, with displaced pipe fragments, exposed soil, and near-total loss of structural integrity — this section has effectively failed. |
| High | Excavate and repair the collapsed section at 217.6 ft, then re-inspect the remaining line beyond this point. The pipe has fully collapsed at 217.6 ft; the camera could not pass and no continuing pipe was visible, meaning the line is blocked and downstream conditions past this point are unverified. |
| High | Repair the broken pipe and resolve the utility conflict at 143–143.4 ft, coordinating with the owner of the intruding utility. A grade 5 broken pipe at 143 ft with exposed surrounding soil sits adjacent to a foreign utility pipe passing through the sewer at 143.4 ft (grade 4), which obstructs flow and compromises the pipe structure. |
| High | Remove the root intrusions at 281.1 ft and 281.5 ft by mechanical cutting, then assess the joints and taps for repair or sealing. A root ball occupying an estimated 70–80% of the pipe and a dense root mass at the adjacent joint (both grade 4) are significantly restricting flow and indicate open joints or defective connections allowing root entry. |
| Medium | Clean the heavy encrustation near 340.3 ft and re-inspect the underlying pipe wall. Grade 3 attached encrustation with iron staining is partially obscuring possible surface deterioration; cleaning is needed to reduce flow restriction and allow proper assessment of the pipe wall beneath the deposits. |
| Low | Monitor the lighter crown deposits at 342.6 ft during routine maintenance cycles. Grade 2 attached deposits partially coat the upper quadrant of the pipe; this is a minor condition that should be tracked but does not require immediate action. |
| # | Dist (ft) | Code | Description (NASSCO) | Clock | Gr | Remark | Snapshot |
|---|---|---|---|---|---|---|---|
| 1 | 9.6 | OBB | Obstacle, brick/masonry/object | 12 to 6 | 5 | Large masonry/aggregate object obstructing the majority of the 8-inch pipe cross-section at 9.6 ft, severely restricting flow and camera passage. | |
| 2 | 11.5 | X | Collapse | 12 to 12 | 5 | Pipe collapse at 11.5 ft with displaced pipe wall fragments and a large mass of soil/debris occupying the majority of the pipe cross-section, severely restricting the bore. | |
| 3 | 11.6 | B | Broken pipe | 9 to 3 | 5 | Pipe is severely broken at 11.5 ft with displaced pipe wall sections, exposed surrounding soil, and accumulated debris obstructing the bore; near-total loss of structural integrity at this location. | |
| 4 | 11.7 | B | Broken pipe | 12 to 6 | 5 | Pipe is broken at 11.5 ft with displaced clay pipe fragments and surrounding soil/debris visible, substantially obstructing the pipe bore. | |
| 5 | 143 | B | Broken pipe | 8 to 12 | 5 | Broken pipe with displaced wall fragments and surrounding soil visible through the pipe wall at 143 ft. | |
| 6 | 143.4 | OBB | Obstacle, brick/masonry/object | 12 to 6 | 4 | Foreign pipe/object (appears to be an external utility pipe) passes through the pipe/structure at 143.4 ft, obstructing a significant portion of the cross-section, with exposed brick/masonry visible adjacent to the intrusion. | |
| 7 | 217.6 | X | Collapse | 12 to 12 | 5 | Pipe collapse at 217.6 ft with broken pipe fragments and debris obstructing the bore; camera unable to pass and no continuing pipe line visible. | |
| 8 | 281.1 | RTB | Roots, tap/ball | 3 to 9 | 4 | Large ball of roots occupying an estimated 70-80% of the pipe cross-section at 281.1 ft, significantly restricting flow. | |
| 9 | 281.5 | RMJ | Roots, mass, joint | 12 to 6 | 4 | Dense root mass intruding into the pipe, occupying the majority of the pipe cross-section and obscuring the camera view at 281.5 ft. | |
| 10 | 282.2 | AMH | Access point, manhole | 1 | Pipe segment terminates at a brick masonry access structure (manhole) at 282.2 ft, with the far brick wall and channel visible beyond the pipe end. | |
|
| 11 | 340.2 | MGO | General observation / photo | 1 | Frame captured at 340.2 ft is severely motion-blurred; possible surface staining or attached deposits visible along the right pipe wall (approx. 1 to 4 o'clock) but no defect can be reliably coded from this image. | |
|
| 12 | 340.3 | DAE | Deposits attached, encrustation | 9 to 3 | 3 | Heavy attached encrustation with orange mineral/iron staining observed on the pipe wall at 340.3 ft, with underlying surface deterioration partially obscured by deposit buildup. | |
| 13 | 342.6 | DAE | Deposits attached, encrustation | 10 to 2 | 2 | Attached deposits/encrustation observed on the pipe wall at the crown, partially coating the upper quadrant of the 8 in. main at 342.6 ft. | |
