Date 06/11/2019
W/O 0772128
Weather Dry
Operator/Surveyor SANTIAGO OBREGON
Sewer ID Z00941
PipeID P11119
Time 9:25 AM
Certificate U-1014-06022541
System Owner LACSD
Date Cleaned —
Pre-Cleaning Not Known
Media Label G7997
Sewer Name H JOINT OUTFALL H - UNIT 9B
City WHITTIER
Loc. details Yard
Location Code Y
Use of Sewer Sanitary Sewer
District District 15
Page No. 29
Purpose Routine Assessment
Project 20190611_SHO_JOINT_OUTFALL_UNIT_9B
Material NRCP
Shape Circular
Height 25 in.
Upstream MH H 0712
Downstream MH H 0711
Dir. of Survey Downstream
Length Surveyed 581 ft.
Total Length 581 ft.
Structural Index 3
Structural Quick 3221
Structural Rating 8
O&M Index 2
O&M Quick 2100
O&M Rating 2
Overall Index 3
Overall Quick —
Overall Rating 10 Pipe schematic from manhole H 0712 to H 0711 MH: H 0712 MH: H 0711 downstream 0 ft. AMH - Upstream Manhole, Survey Begins - H 0712 0 ft. MWM - Water Mark, 45 %of cross sectional area 0 ft. MWL - Water Level, 25 %of cross sectional area 12.6 ft. MGO - General Observation - MAG COAT IS 80% INTACT 80.1 ft. SSS - Surface Spalling, from 09 to 03 o'clock, within 8 inches of joint: YES, Start 115.1 ft. SAV - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: YES, Start 379 ft. SAV - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish 379 ft. DAE - Deposits Attached Encrustation, 5 %of cross sectional area, from 08 to 04 o'clock, , within 8 inches of joint: YES, Start - POSSIBLE GREASE OR SILT BUILD UP AT 8 & 4 390.8 ft. MGO - General Observation - MAG COAT HAS ENDED 491.5 ft. SSS - Surface Spalling, from 09 to 03 o'clock, within 8 inches of joint: YES, Finish 566.1 ft. SAV - Surface Aggregate Visible, from 09 to 03 o'clock, within 8 inches of joint: YES, Start 580.4 ft. DAE - Deposits Attached Encrustation, 5 %of cross sectional area, from 08 to 04 o'clock, , within 8 inches of joint: YES, Finish 580.4 ft. SAV - Surface Aggregate Visible, from 09 to 03 o'clock, within 8 inches of joint: YES, Finish 581 ft. AMH - Downstream Manhole, Survey Ends - H 0711 Observation photos (5) 12.6 ft. - General Observation - MAG COAT IS 80% INTACT
80.1 ft. - Surface Spalling, from 09 to 03 o'clock, within 8 inches of joint: YES, Start
115.1 ft. - Surface Aggregate Visible, from 08 to 04 o'clock, within 8 inches of joint: YES, Start
379 ft. - Deposits Attached Encrustation, 5 %of cross sectional area, from 08 to 04 o'clock, , within 8 inches of joint: YES, Start - POSSIBLE GREASE OR SILT BUILD UP AT 8 & 4
566.1 ft. - Surface Aggregate Visible, from 09 to 03 o'clock, within 8 inches of joint: YES, Start