Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 20, 2017, 07:49 AM
  • 21 0723_21 0722 _20170420_013016.mp4

Date
04/20/2017
W/O
630300
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00768
PipeID
P15835
Time
12:49 AM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
No Pre-Cleaning
Media Label
4508
Sewer Name
21 FIRST STREET DIVERSION TRUNK
City
POMONA
Loc. details
Main Highway - Urban
Location Code
A
Use of Sewer
Sanitary Sewer
District
District 21
Page No.
20
Purpose
Routine Assessment
Project
WO_630300_TV21070_APR2017
Material
Vitrified Clay Pipe
Shape
Circular
Height
15 in.
Width
15 in.
Upstream MH
21 0723
Downstream MH
21 0722
Dir. of Survey
Downstream
Length Surveyed
392.1 ft.
Total Length
392.1 ft.
Structural Index
3
Structural Quick
4132
Structural Rating
10
O&M Index
2
O&M Quick
2100
O&M Rating
2
Overall Index
3
Overall Quick
Overall Rating
12
Pipe schematic from manhole 21 0723 to 21 0722
MH: 21 0723MH: 21 0722downstream0 ft. MWL - Water Level, 15 %of cross sectional area0 ft. AMH - Upstream Manhole, Survey Begins - 21 07230 ft. MWM - Water Mark, 30 %of cross sectional area3 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start7.8 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES80.9 ft. FM - Fracture Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES101.5 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Start392 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish392.1 ft. AMH - Downstream Manhole, Survey Ends - 21 0722392.1 ft. CM - Crack Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish

Observation photos (4)

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

    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

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

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

    80.9 ft. - Fracture Multiple, from 08 to 04 o'clock, within 8 inches of joint: YES

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

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

Observations (10)

DistanceCodeObservation
0MWL
101.5CM
392DAGS
0AMH21 0723
392.1AMH21 0722
3DAGS
80.9FM
392.1CM
7.8CM
0MWM

Properties (5)

additional_info
SC340722
custom_field_two
3
customer
LACSD
datetime
2017-04-20T00:49:32-07:00
sewer_category
Gravity