Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Feb 10, 2021, 10:11 PM
Date
02/10/2021
W/O
870709
Weather
Dry
Operator/Surveyor
J. BUENROSTRO
Sewer ID
Z00763
PipeID
P15484
Time
2:11 PM
Certificate
U-715-07000770
System Owner
1
Date Cleaned
Pre-Cleaning
Not Known
Media Label
K7836
Sewer Name
21 DISTRICT #21 OUTFALL TRUNK
City
POMONA
Loc. details
Easement/Right of Way
Location Code
D
Use of Sewer
Sanitary Sewer
District
District 21
Page No.
18
Purpose
Routine Assessment
Project
RFIR_WO_870709_TV21044_JAN2021
Sewer Type
Gravity
Material
Reinforced Concrete Pipe
Shape
Circular
Height
27 in.
Width
27 in.
Upstream MH
21 0289
Downstream MH
21 0288
Dir. of Survey
Downstream
Length Surveyed
339.7 ft.
Total Length
339.7 ft.
Structural Index
2
Structural Quick
2100
Structural Rating
2
O&M Index
3
O&M Quick
3300
O&M Rating
9
Overall Index
3
Overall Quick
Overall Rating
11
Pipe schematic from manhole 21 0289 to 21 0288
MH: 21 0289MH: 21 0288downstream0 ft. MWM - Water Mark, 20 %of cross sectional area0 ft. MWL - Water Level, 20 %of cross sectional area3.7 ft. SSS - Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Start7 ft. DSC - Deposits Settled Compacted, 15 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start93.6 ft. OBZ - Obstacles Other, 20 %of cross sectional area, from 04 to 08 o'clock - DEBRIS208.9 ft. OBM - Obstacles Pipe Material, 15 %of cross sectional area, from 03 to 06 o'clock252.8 ft. MGP - General Photograph - SEVERE SPALLING336.3 ft. DSC - Deposits Settled Compacted, 15 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish336.3 ft. SSS - Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish339.7 ft. AMH - Downstream Manhole, Survey Ends - 21 0288339.7 ft. MGO - General Observation - CONNECTION AT MH 9 O'CLOCK

Observation photos (5)

  • Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

    3.7 ft. - Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

  • Deposits Settled Compacted,  15 %of cross sectional area, from 04 to 08 o'clock,  , within 8 inches of joint: YES, Start

    7 ft. - Deposits Settled Compacted, 15 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start

  • Obstacles Other, 20 %of cross sectional area, from 04 to 08 o'clock - DEBRIS

    93.6 ft. - Obstacles Other, 20 %of cross sectional area, from 04 to 08 o'clock - DEBRIS

  • Obstacles Pipe Material, 15 %of cross sectional area, from 03 to 06 o'clock

    208.9 ft. - Obstacles Pipe Material, 15 %of cross sectional area, from 03 to 06 o'clock

  • General Photograph - SEVERE SPALLING

    252.8 ft. - General Photograph - SEVERE SPALLING

Observations (11)

DistanceCodeObservation
339.7AMH21 0288
252.8MGPSEVERE SPALLING
7DSC
336.3DSC
336.3SSS
0MWM
208.9OBM
0MWL
93.6OBZDEBRIS
3.7SSS
339.7MGOCONNECTION AT MH 9 O'CLOCK

Properties (7)

additional_info
630075021021061
custom_field_three
SEVERE SPALLING, LARGE AMOUNTS OF MATERIAL FALLING
custom_field_two
2
customer
1
datetime
2021-02-10T14:11:36-08:00
documentation
PROPIPE
is_lateral_inspection
false