Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 22, 2019, 08:59 AM
  • 21 0454_21 0453 _04222019_020551.mp4

Date
04/22/2019
W/O
761208
Weather
Dry
Operator/Surveyor
S. LOPEZ
Sewer ID
Z00777
PipeID
P15663
Time
1:59 AM
Certificate
U-111-11880
System Owner
LACSD
Date Cleaned
Pre-Cleaning
No Pre-Cleaning
Media Label
K6508
Sewer Name
21 MOUNT SAN ANTONIO TRUNK
City
WALNUT
Loc. details
Main Highway - Urban
Location Code
A
Use of Sewer
Sanitary Sewer
District
District 21
Page No.
28
Purpose
Routine Assessment
Project
RFIR_WO_761208_TV21084_APR2019
Sewer Type
Gravity
Material
Vitrified Clay Pipe
Shape
Circular
Height
18 in.
Width
18 in.
Upstream MH
21 0454
Downstream MH
21 0453
Dir. of Survey
Downstream
Length Surveyed
48.3 ft.
Total Length
48.3 ft.
Structural Index
3
Structural Quick
3200
Structural Rating
6
O&M Index
2
O&M Quick
2100
O&M Rating
2
Overall Index
3
Overall Quick
Overall Rating
8
Pipe schematic from manhole 21 0454 to 21 0453
MH: 21 0454MH: 21 0453downstream0 ft. AMH - Upstream Manhole, Survey Begins - 21 04540 ft. MWM - Water Mark, 20 %of cross sectional area0 ft. MWL - Water Level, 10 %of cross sectional area2 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start11.5 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start26.8 ft. MMC - Material Change, Cast Iron26.8 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish26.8 ft. SCP - Surface Corrosion Metal Pipe, from 08 to 04 o'clock, within 8 inches of joint: YES, Start35.1 ft. MMC - Material Change, Vitrified clay pipe35.1 ft. SCP - Surface Corrosion Metal Pipe, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish46 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish48.3 ft. AMH - Downstream Manhole, Survey Ends - 21 0453

Observation photos (5)

  • Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock,  , within 8 inches of joint: YES, Start

    2 ft. - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start

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

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

  • Material Change, Cast Iron

    26.8 ft. - Material Change, Cast Iron

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

    26.8 ft. - Surface Corrosion Metal Pipe, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

  • Material Change, Vitrified clay pipe

    35.1 ft. - Material Change, Vitrified clay pipe

Observations (12)

DistanceCodeObservation
0AMH21 0454
26.8MMC
26.8CM
26.8SCP
35.1MMC
0MWM
2DAGS
46DAGS
35.1SCP
0MWL
48.3AMH21 0453
11.5CM

Properties (5)

additional_info
SC366226
custom_field_two
3
customer
LACSD
datetime
2019-04-22T01:59:29-07:00
is_lateral_inspection
false