Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Apr 20, 2017, 07:48 AM
  • 21 0724_21 0723 _20170420_011335.mp4

Date
04/20/2017
W/O
630300
Weather
Dry
Operator/Surveyor
JUAN B
Sewer ID
Z00768
PipeID
P15836
Time
12:48 AM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
Not Known
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 0724
Downstream MH
21 0723
Dir. of Survey
Downstream
Length Surveyed
382 ft.
Total Length
382 ft.
Structural Index
3
Structural Quick
3121
Structural Rating
5
O&M Index
2
O&M Quick
2100
O&M Rating
2
Overall Index
2
Overall Quick
Overall Rating
7
Pipe schematic from manhole 21 0724 to 21 0723
MH: 21 0724MH: 21 0723downstream0 ft. MWL - Water Level, 10 %of cross sectional area0 ft. AMH - Upstream Manhole, Survey Begins - 21 07241 ft. MWM - Water Mark, 25 %of cross sectional area5 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start292.8 ft. CM - Crack Multiple, from 09 to 04 o'clock, within 8 inches of joint: YES318 ft. MWLS - Water Level, Sag in pipe, 10 %of cross sectional area, Start330.5 ft. MWLS - Water Level, Sag in pipe, 10 %of cross sectional area, Finish382 ft. AMH - Downstream Manhole, Survey Ends - 21 0723382 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish

Observation photos (3)

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

    5 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 09 to 04 o'clock, within 8 inches of joint: YES

    292.8 ft. - Crack Multiple, from 09 to 04 o'clock, within 8 inches of joint: YES

  • Water Level, Sag in pipe, 10 %of cross sectional area, Start

    318 ft. - Water Level, Sag in pipe, 10 %of cross sectional area, Start

Observations (9)

DistanceCodeObservation
0MWL
330.5MWLS
292.8CM
318MWLS
382AMH21 0723
1MWM
5DAGS
382DAGS
0AMH21 0724

Properties (5)

additional_info
SC340722
custom_field_two
4
customer
LACSD
datetime
2017-04-20T00:48:35-07:00
sewer_category
Gravity