Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 21, 2017, 10:10 AM
  • 21 0442_21 0441 _20170421_032322.mp4

Date
04/21/2017
W/O
630321
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00777
PipeID
P15650
Time
3:10 AM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
No Pre-Cleaning
Media Label
K4511
Sewer Name
21 MOUNT SAN ANTONIO TRUNK
City
WALNUT
Loc. details
Easement/Right of Way
Location Code
D
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
21 in.
Width
21 in.
Upstream MH
21 0442
Downstream MH
21 0441
Dir. of Survey
Downstream
Length Surveyed
218.3 ft.
Total Length
218.3 ft.
Structural Index
2
Structural Quick
2100
Structural Rating
2
O&M Index
2
O&M Quick
3122
O&M Rating
7
Overall Index
2
Overall Quick
Overall Rating
9
Pipe schematic from manhole 21 0442 to 21 0441
MH: 21 0442MH: 21 0441downstream0 ft. MWM - Water Mark, 25 %of cross sectional area0 ft. MWL - Water Level, 10 %of cross sectional area0 ft. AMH - Upstream Manhole, Survey Begins - 21 04424.4 ft. DSGV - Deposits Settled Gravel, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start4.4 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start134.2 ft. DSGV - Deposits Settled Gravel, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish207.3 ft. MWLS - Water Level, Sag in pipe, 15 %of cross sectional area, Start218.2 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish218.2 ft. MWLS - Water Level, Sag in pipe, 15 %of cross sectional area, Finish218.2 ft. DSGV - Deposits Settled Gravel, 15 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES218.3 ft. MSA - Survey Abandoned - DSGV

Observation photos (2)

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

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

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

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

Observations (11)

DistanceCodeObservation
4.4DSGV
0MWM
0MWL
218.3MSADSGV
4.4DAGS
0AMH21 0442
218.2DAGS
218.2MWLS
134.2DSGV
207.3MWLS
218.2DSGV

Properties (4)

additional_info
SC340725
custom_field_two
5
customer
LACSD
datetime
2017-04-21T03:10:43-07:00