Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Mar 2, 2016, 09:19 AM
  • 21 1128_21 1127_20020101_044515.mp4

Date
03/02/2016
W/O
552368
Weather
Dry
Operator/Surveyor
J. HARTOOG
Sewer ID
Z00780
PipeID
P16222
Time
1:19 AM
Certificate
U-507-03-3386
System Owner
LACSD
Date Cleaned
Pre-Cleaning
Not Known
Media Label
K3214
Sewer Name
21 POMONA BOULEVARD INTERCEPTOR TRUNK
City
POMONA, CA
Loc. details
Easement/Right of Way
Location Code
D
Use of Sewer
Sanitary Sewer
District
District 21
Page No.
14
Purpose
Routine Assessment
Project
WO_552368_TV21019_FEB2016
Sewer Type
GRAVITY
Material
Reinforced Concrete Pipe
Shape
Circular
Height
33 in.
Upstream MH
21 1128
Downstream MH
21 1127
Dir. of Survey
Downstream
Length Surveyed
312.5 ft.
Total Length
312.5 ft.
Structural Index
1
Structural Quick
1H00
Structural Rating
44
O&M Index
2
O&M Quick
2200
O&M Rating
4
Overall Index
1
Overall Quick
Overall Rating
48
Pipe schematic from manhole 21 1128 to 21 1127
MH: 21 1128MH: 21 1127downstream0 ft. MWL - Water Level, 15 %of cross sectional area0 ft. AMH - Upstream Manhole, Survey Begins - 21 11280 ft. MWM - Water Mark, 30 %of cross sectional area0.1 ft. MGO - General Observation - Magnesium hydroxide coating start9.9 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start88.9 ft. SRI - Surface Roughness Increased, from 09 to 03 o'clock, within 8 inches of joint: YES, Start307.7 ft. SRI - Surface Roughness Increased, from 09 to 03 o'clock, within 8 inches of joint: YES, Finish307.7 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish312 ft. MGO - General Observation - FLOW CONTROL GATE AT MANHOLE312.5 ft. MGO - General Observation - FLOW CONTROL GATE AT MANHOLE 9 O'CLOCK312.5 ft. AMH - Downstream Manhole, Survey Ends - 21 1127

Observation photos (3)

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

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

  • Surface Roughness Increased, from 09 to 03 o'clock, within 8 inches of joint: YES, Start

    88.9 ft. - Surface Roughness Increased, from 09 to 03 o'clock, within 8 inches of joint: YES, Start

  • General Observation - FLOW CONTROL GATE AT MANHOLE 9 O'CLOCK

    312.5 ft. - General Observation - FLOW CONTROL GATE AT MANHOLE 9 O'CLOCK

Observations (11)

DistanceCodeObservation
88.9SRI
0MWL
9.9DAGS
0AMH21 1128
312.5MGOFLOW CONTROL GATE AT MANHOLE 9 O'CLOCK
0.1MGOMagnesium hydroxide coating start
307.7SRI
312.5AMH21 1127
312MGOFLOW CONTROL GATE AT MANHOLE
307.7DAGS
0MWM

Properties (5)

additional_info
SC305303
custom_field_two
4
customer
LACSD
datetime
2016-03-02T01:19:00-08:00
year_laid
19840209