Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Aug 30, 2021, 01:03 PM
  • 20 0038_20 0594_08302021_061520.mp4

Date
08/30/2021
W/O
913489
Weather
Dry
Operator/Surveyor
S. LOPEZ
Sewer ID
Z00742
PipeID
P21695
Time
6:03 AM
Certificate
U-0720-70309212
System Owner
1
Date Cleaned
Pre-Cleaning
No Pre-Cleaning
Media Label
K9249
Sewer Name
20 TRUNK "A"
City
PALMDALE
Loc. details
Light Highway
Location Code
C
Use of Sewer
Sanitary Sewer
District
District 20
Page No.
03
Purpose
Routine Assessment
Project
CA_WO_913489
Sewer Type
Gravity
Material
Reinforced Concrete Pipe
Shape
Circular
Height
30 in.
Width
30 in.
Upstream MH
20 0038
Downstream MH
20 0594
Dir. of Survey
Downstream
Length Surveyed
142.4 ft.
Total Length
142.4 ft.
Structural Index
2
Structural Quick
2A00
Structural Rating
22
O&M Index
3
O&M Quick
4D2E
O&M Rating
160
Overall Index
3
Overall Quick
Overall Rating
182
Pipe schematic from manhole 20 0038 to 20 0594
MH: 20 0038MH: 20 0594downstream0 ft. AMH - Upstream Manhole, Survey Begins - 20 00380 ft. MWM - Water Mark, 65 %of cross sectional area0 ft. MWL - Water Level, 35 %of cross sectional area2 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 12 to 12 o'clock, , within 8 inches of joint: YES, Start16.4 ft. DSZ - Deposits Settled Other, 25 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start - DEBRIS/SLUDGE84.1 ft. SSS - Surface Spalling, from 11 to 01 o'clock, within 8 inches of joint: YES, Start119.6 ft. TFC - Tap Factory Made Capped, at 12 o'clock, -, within 8 inches of joint: NO, 6"141 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 12 to 12 o'clock, , within 8 inches of joint: YES, Finish141 ft. DSZ - Deposits Settled Other, 25 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish141 ft. SSS - Surface Spalling, from 11 to 01 o'clock, within 8 inches of joint: YES, Finish141.8 ft. MGO - General Observation - CONNECTION AT MH 3 O'CLOCK142.4 ft. AMH - Downstream Manhole, Survey Ends - 20 0594

Observation photos (3)

  • Deposits Attached Grease, 5 %of cross sectional area, from 12 to 12 o'clock,  , within 8 inches of joint: YES, Start

    2 ft. - Deposits Attached Grease, 5 %of cross sectional area, from 12 to 12 o'clock, , within 8 inches of joint: YES, Start

  • Deposits Settled Other,  25 %of cross sectional area, from 04 to 08 o'clock,  , within 8 inches of joint: YES, Start - DEBRIS/SLUDGE

    16.4 ft. - Deposits Settled Other, 25 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start - DEBRIS/SLUDGE

  • Surface Spalling, from 11 to 01 o'clock, within 8 inches of joint: YES, Start

    84.1 ft. - Surface Spalling, from 11 to 01 o'clock, within 8 inches of joint: YES, Start

Observations (12)

DistanceCodeObservation
0AMH20 0038
2DAGS
0MWM
141DAGS
141.8MGOCONNECTION AT MH 3 O'CLOCK
84.1SSS
0MWL
141DSZ
16.4DSZDEBRIS/SLUDGE
119.6TFC
141SSS
142.4AMH20 0594

Properties (7)

additional_info
630069083021001
custom_field_three
SPALLING/DEBRIS
custom_field_two
3
customer
1
datetime
2021-08-30T06:03:53-07:00
documentation
PRO PIPE
is_lateral_inspection
false