Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 25, 2017, 06:41 AM
  • 21 0452_21 0451 _20170425_001720.mp4

Date
04/24/2017
W/O
630321
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00777
PipeID
P15661
Time
11:41 PM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
Not Known
Media Label
K4513
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
WO_630321_TV21046_APR2017
Material
Vitrified Clay Pipe
Shape
Circular
Height
18 in.
Width
18 in.
Upstream MH
21 0451
Downstream MH
21 0452
Dir. of Survey
Upstream
Length Surveyed
232.3 ft.
Total Length
232.3 ft.
Structural Index
3
Structural Quick
3100
Structural Rating
3
O&M Index
2
O&M Quick
2300
O&M Rating
6
Overall Index
2
Overall Quick
Overall Rating
9
Pipe schematic from manhole 21 0451 to 21 0452
MH: 21 0451MH: 21 0452upstream0 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish0 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish0 ft. AMH - Upstream Manhole, Survey Ends - 45231.2 ft. TBA - Tap Break-In Active, at 03 o'clock, -, within 8 inches of joint: NO, 6"69.8 ft. TBC - Tap Break-In Capped, at 09 o'clock, -, within 8 inches of joint: NO, 4"128.1 ft. TB - Tap Break-In, at 12 o'clock, -, within 8 inches of joint: NO, 4"172.1 ft. TBC - Tap Break-In Capped, at 09 o'clock, -, within 8 inches of joint: NO, 4"226.3 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start226.9 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start232.2 ft. MWM - Water Mark, 25 %of cross sectional area232.3 ft. MWL - Water Level, 20 %of cross sectional area232.3 ft. AMH - Downstream Manhole, Survey Begins - 21 0451

Observation photos (2)

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

    5.4 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

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

Observations (12)

DistanceCodeObservation
6CM
0MWL
0.1MWM
60.2TBC
162.5TBC
232.3DAGS
0AMH21 0451
232.3CM
232.3AMH452
201.1TBA
5.4DAGS
104.2TB

Properties (5)

additional_info
SC340727
custom_field_two
3
customer
LACSD
datetime
2017-04-24T23:41:50-07:00
sewer_category
Gravity