Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 24, 2017, 09:51 AM
  • 21 0447_21 0446 _20170424_035824.mp4

Date
04/24/2017
W/O
630321
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00777
PipeID
P15655
Time
2:51 AM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
No Pre-Cleaning
Media Label
K4512
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
Sewer Type
Gravity
Material
Vitrified Clay Pipe
Shape
Circular
Height
18 in.
Width
18 in.
Upstream MH
21 0447
Downstream MH
21 0446
Dir. of Survey
Downstream
Length Surveyed
351.9 ft.
Total Length
351.9 ft.
Structural Index
3
Structural Quick
3100
Structural Rating
3
O&M Index
2
O&M Quick
2500
O&M Rating
10
Overall Index
2
Overall Quick
Overall Rating
13
Pipe schematic from manhole 21 0447 to 21 0446
MH: 21 0447MH: 21 0446downstream0 ft. MWL - Water Level, 10 %of cross sectional area0 ft. MWM - Water Mark, 20 %of cross sectional area0 ft. AMH - Upstream Manhole, Survey Begins - 21 04473.3 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start16.5 ft. TBC - Tap Break-In Capped, at 03 o'clock, -, within 8 inches of joint: NO, 6"29.5 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start139 ft. TBC - Tap Break-In Capped, at 03 o'clock, -, within 8 inches of joint: NO, 4"241.2 ft. TBC - Tap Break-In Capped, at 03 o'clock, -, within 8 inches of joint: NO, 6"343 ft. TBC - Tap Break-In Capped, at 03 o'clock, -, within 8 inches of joint: NO, 6"351.9 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish351.9 ft. AMH - Downstream Manhole, Survey Ends - 21 0446351.9 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish

Observation photos (2)

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

    3.3 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

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

Observations (12)

DistanceCodeObservation
351.9DAGS
29.5CM
343TBC
351.9AMH21 0446
139TBC
16.5TBC
0MWL
3.3DAGS
0MWM
351.9CM
241.2TBC
0AMH21 0447

Properties (4)

additional_info
SC340726
custom_field_two
4
customer
LACSD
datetime
2017-04-24T02:51:25-07:00