Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Feb 10, 2021, 06:58 PM
  • 21 0292_21 0291_02102021_111619.mp4

Date
02/10/2021
W/O
870706
Weather
Dry
Operator/Surveyor
J. BUENROSTRO
Sewer ID
Z00763
PipeID
P15487
Time
10:58 AM
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 0292
Downstream MH
21 0291
Dir. of Survey
Downstream
Length Surveyed
199.5 ft.
Total Length
199.5 ft.
Structural Index
2
Structural Quick
3121
Structural Rating
6
O&M Index
3
O&M Quick
3121
O&M Rating
5
Overall Index
2
Overall Quick
Overall Rating
11
Pipe schematic from manhole 21 0292 to 21 0291
MH: 21 0292MH: 21 0291downstream0 ft. AMH - Upstream Manhole, Survey Begins - 21 02920 ft. MWM - Water Mark, 10 %of cross sectional area0 ft. MGO - General Observation - CONNECTION AT MH 9 O'CLOCK0 ft. MWL - Water Level, 5 %of cross sectional area3.7 ft. SRI - Surface Roughness Increased, from 08 to 04 o'clock, within 8 inches of joint: YES, Start3.7 ft. MGO - General Observation - MAG COATING11.5 ft. SSS - Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Start43.4 ft. DSC - Deposits Settled Compacted, 10 %of cross sectional area, from 05 to 07 o'clock, , within 8 inches of joint: YES, Start - FALLEN PIPE MATERIAL71.9 ft. MWL - Water Level, 15 %of cross sectional area - DUE TO BLOCKAGE87.6 ft. SRI - Surface Roughness Increased, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish87.6 ft. SAV - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: YES, Start101.7 ft. OBM - Obstacles Pipe Material, 20 %of cross sectional area, from 03 to 09 o'clock102.8 ft. MGO - General Observation - BLOCKAGE BROKEN UP197.7 ft. SSS - Surface Spalling, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish197.7 ft. SAV - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish197.7 ft. DSC - Deposits Settled Compacted, 10 %of cross sectional area, from 05 to 07 o'clock, , within 8 inches of joint: YES, Finish199.5 ft. AMH - Downstream Manhole, Survey Ends - 21 0291199.5 ft. MGO - General Observation - CONNECTION AT MH 9 O'CLOCK

Observation photos (8)

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

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

  • General Observation - MAG COATING

    3.7 ft. - General Observation - MAG COATING

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

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

  • Deposits Settled Compacted,  10 %of cross sectional area, from 05 to 07 o'clock,  , within 8 inches of joint: YES, Start - FALLEN PIPE MATERIAL

    43.4 ft. - Deposits Settled Compacted, 10 %of cross sectional area, from 05 to 07 o'clock, , within 8 inches of joint: YES, Start - FALLEN PIPE MATERIAL

  • Water Level, 15 %of cross sectional area - DUE TO BLOCKAGE

    71.9 ft. - Water Level, 15 %of cross sectional area - DUE TO BLOCKAGE

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

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

  • Obstacles Pipe Material, 20 %of cross sectional area, from 03 to 09 o'clock

    101.7 ft. - Obstacles Pipe Material, 20 %of cross sectional area, from 03 to 09 o'clock

  • General Observation - BLOCKAGE BROKEN UP

    102.8 ft. - General Observation - BLOCKAGE BROKEN UP

Observations (18)

DistanceCodeObservation
87.6SRI
0AMH21 0292
3.7SRI
0MWM
71.9MWLDUE TO BLOCKAGE
0MGOCONNECTION AT MH 9 O'CLOCK
197.7SSS
43.4DSCFALLEN PIPE MATERIAL
199.5AMH21 0291
102.8MGOBLOCKAGE BROKEN UP
101.7OBM
87.6SAV
197.7SAV
0MWL
197.7DSC
199.5MGOCONNECTION AT MH 9 O'CLOCK
3.7MGOMAG COATING
11.5SSS

Properties (7)

additional_info
630075021021061
custom_field_three
SEVERE SPALLING, LARGE AMOUNTS OF MATERIAL FALLING
custom_field_two
2
customer
1
datetime
2021-02-10T10:58:50-08:00
documentation
PROPIPE
is_lateral_inspection
false