Sanitation Districts of Los Angeles Countyt4 Spatial
Wastewater/Activity/PacpInspection/1.0Oct 18, 2019, 05:13 PM
  • 21 1300_21 1299 _101819_101415.mp4

Date
10/18/2019
W/O
787682
Weather
Dry
Operator/Surveyor
J. BUENROSTRO
Sewer ID
Z00763
PipeID
P25691
Time
10:13 AM
Certificate
U-715-07000770
System Owner
LACSD
Date Cleaned
Pre-Cleaning
Not Known
Media Label
K7063
Sewer Name
21 DISTRICT #21 OUTFALL TRUNK
City
WALNUT
Loc. details
Easement/Right of Way
Location Code
D
Use of Sewer
Sanitary Sewer
District
District 21
Page No.
28
Purpose
Routine Assessment
Project
RFIR_WO_787682_TV21096_SEP2019
Sewer Type
Gravity
Material
Vitrified Clay Pipe
Shape
Circular
Height
27 in.
Width
27 in.
Upstream MH
21 1300
Downstream MH
21 1299
Dir. of Survey
Downstream
Length Surveyed
385.6 ft.
Total Length
385.6 ft.
Structural Index
1
Structural Quick
1M00
Structural Rating
70
O&M Index
2
O&M Quick
2H00
O&M Rating
88
Overall Index
1
Overall Quick
Overall Rating
158
Pipe schematic from manhole 21 1300 to 21 1299
MH: 21 1300MH: 21 1299downstream0 ft. AMH - Upstream Manhole, Survey Begins - 21 13000 ft. MWL - Water Level, 25 %of cross sectional area0 ft. MGO - General Observation - CONNECTION AT MH 9 O'CLOCK0 ft. MWM - Water Mark, 25 %of cross sectional area12.1 ft. MGO - General Observation - SLIM COAT THROUGHOUT37.1 ft. SRI - Surface Roughness Increased, from 08 to 04 o'clock, within 8 inches of joint: YES, Start140 ft. SRI - Surface Roughness Increased, from 08 to 04 o'clock, within 8 inches of joint: YES, Finish165 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Start383.7 ft. DAGS - Deposits Attached Grease, 5 %of cross sectional area, from 04 to 08 o'clock, , within 8 inches of joint: YES, Finish385.6 ft. AMH - Downstream Manhole, Survey Ends - 21 1299

Observation photos (4)

  • Upstream Manhole, Survey Begins - 21 1300

    0 ft. - Upstream Manhole, Survey Begins - 21 1300

  • General Observation - SLIM COAT THROUGHOUT

    12.1 ft. - General Observation - SLIM COAT THROUGHOUT

  • Surface Roughness Increased, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

    37.1 ft. - Surface Roughness Increased, from 08 to 04 o'clock, within 8 inches of joint: YES, Start

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

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

Observations (10)

DistanceCodeObservation
0AMH21 1300
165DAGS
0MWL
383.7DAGS
12.1MGOSLIM COAT THROUGHOUT
37.1SRI
0MGOCONNECTION AT MH 9 O'CLOCK
0MWM
140SRI
385.6AMH21 1299

Properties (7)

additional_info
SC378663
custom_field_two
4
customer
LACSD
datetime
2019-10-18T10:13:26-07:00
documentation
PROPIPE
is_lateral_inspection
false
year_laid
38809