- Date
- 11/19/2019
- W/O
- 798663
- Weather
- Dry
- Operator/Surveyor
- E. RUIZ
- Sewer ID
- Z00831
- PipeID
- P16712
- Time
- 7:26 AM
- Certificate
- U-116-07001919
- System Owner
- LACSD
- Date Cleaned
- —
- Pre-Cleaning
- No Pre-Cleaning
- Media Label
- K7204
- Sewer Name
- 22 WALNUT CREEK TRUNK, SECTION 3
- City
- COVINA
- Loc. details
- Easement/Right of Way
- Location Code
- D
- Use of Sewer
- Sanitary Sewer
- District
- District 22
- Page No.
- 33
- Purpose
- Routine Assessment
- Project
- WO_798663_TV22066_NOV2019
- Sewer Type
- Gravity
- Material
- Reinforced Concrete Pipe
- Shape
- Circular
- Height
- 21 in.
- Width
- 21 in.
- Upstream MH
- 22 0378
- Downstream MH
- 22 0379
- Dir. of Survey
- Upstream
- Length Surveyed
- 378.6 ft.
- Total Length
- 378.6 ft.
- Structural Index
- 3
- Structural Quick
- 3N2N
- Structural Rating
- 375
- O&M Index
- 2
- O&M Quick
- 2800
- O&M Rating
- 16
- Overall Index
- 2
- Overall Quick
- —
- Overall Rating
- 391
Pipe schematic from manhole 22 0378 to 22 0379 Observation photos (8)

0 ft. - Water Level, 25 %of cross sectional area

0 ft. - Water Mark, 30 %of cross sectional area

2 ft. - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: NO, Start

2 ft. - General Observation - 65% MAG COATING THROUGH OUT

213.5 ft. - Tap Break-In Active, at 12 o'clock, -, within 8 inches of joint: YES, 4", 6"

239.6 ft. - Alignment Right, 20 %, Start

288 ft. - Water Level, 25 %of cross sectional area

378.6 ft. - Upstream Manhole, Survey Ends - 22 0379