Richmond City Council
July 26, 2022

Santa Rosa | Auburn | Pleasant Hill | Fairfield
www.coastlandcivil.com
Date: January 3, 2022
To: Andre Jadkowski, P.E., NCE
From: Jenny Melman, P.E.,
NASSCO PACP Cert. U-0819-70306761
Subject: City of Richmond
Keller Beach Sanitary Sewer CCTV Review
and Assessment Report
At the City’s request, Coastland has reviewed CCTV video of the Keller Beach Sanitary Sewer and conducted an assessment of observed pipe conditions. The CCTV video, dated 3/22/2021 – 8/16/2021, was provided by the City of Richmond’s Contractor, Bayhawk, Inc., and Subcontractor Express Sewer on August 17, 2021. This report presents our findings. Based on these findings and our understanding of site conditions, we also offer preliminary recommendations for a full pipe replacement in a new alignment outside of the bay.

BACKGROUND
Keller Beach Sanitary Sewer
The Keller Beach sanitary sewer, as shown in City of Richmond Line ‘Q’ Shoreline Interceptor as- builts, consists of 5,392 linear feet of 8- to 12-inch concrete-encased cast iron pipe. The pipeline, constructed in 1959, is located off Keller Beach in the San Francisco Bay and is submerged during average tides. The location of the sewer is indicated by a red line in the image below and extends from sanitary sewer manhole MH Q-1 (adjacent to the Keller Beach sanitary sewer pump station) to sanitary sewer manhole MH Q-25. See Appendix A for an exhibit of sewer main locations and manhole numbering.

EXHIBIT A

Access to the sanitary sewer pipeline for maintenance or repair is extremely difficult because the manholes are submerged during high tides, and vehicles cannot get within fifty feet of the pipeline due to the cliffs and private property. Access for foot traffic is also limited to public beach access and through private properties.

Existing Facilities
According to the 1959 Shoreline Interceptor as-builts, the Keller Beach sanitary sewer pipe is shown to be cast iron pipe encased in concrete. The Class-B concrete encasement is shown with a typical outer dimension of D+12 inches, where D = pipe diameter.

The sanitary sewer is shallowly buried on the beach in sand (per as-builts, most segments have 2-4 feet of cover). Some segments of the concrete-encased sewer are exposed on the beach.

Some manholes were buried at the time of inspection, indicating sand elevations and depth of cover have shifted and varied over time.

Based on the as-builts of the twenty-five (25) sewer structures located within this Shoreline Interceptor pipeline, seventeen (17) are manholes and eight (8) are cleanouts, which the as-builts show to be tees with a plug. There are fifteen (15) bends (fittings) in the sewer main between manhole structures, eight (8) of which are greater than 30 degrees. Four (4) of these bends are greater than 45 degrees.

According to the as-builts, at the time of construction there were the following connections to the Keller Beach Sanitary Sewer: twenty-two (22) sewer laterals, twenty-nine (29) capped tees (future lateral connection points), a 12-inch branch sewer entering at MH Q-9, and two 8-inch branch sewers entering at Hartnett Street (MH Q-15) and at Marine Street (MH Q-19).

OBSERVATIONS OF SEWER MAIN PRIOR TO CLEANING
Express Sewer provided the following general observations of pipe conditions prior to cleaning. Severe internal pipe corrosion was observed throughout the pipeline length. Water jetting was insufficient to remove the corrosion and clean the pipe. Express Sewer used a chain flail to descale the pipes, which was effective to descale the upper sections of pipeline (MH Q-17 to MH Q-25), but was less effective for the downstream sections (MH Q-1 to MH Q-17).
Pipes Full of Water: The pipeline wouldn’t drain when plugged upstream and was holding full of water through most of its length. Standing water appeared to be caused by pipeline sags, the presence of heavy corrosion and deposits that obstructed flows, and possibly infiltration. Standing water was removed during pipe inspections by operating a hydronozzle in the downstream direction in advance of the camera. Sand Deposits: Much of the pipeline was observed to have substantial sand deposits.

Several pipe segments, particularly between MH Q-14 and MH Q-16, were essentially choked full of sand. Considerable effort was required to remove sand and clean the pipe prior to performing a video inspection. Some segments of pipe refilled with sand within the two-week period between the time of cleaning and the next suitable tide condition when crews returned to complete the video inspection, and needed to be cleaned again. The presence of sand in the sewer main is evidence of the presence of holes or defects in the upstream collection system (either the sewer main, laterals, manholes or cleanouts).

Another contributing source of sand and I&I was MH Q-14 which was discovered to have no manhole cover (the manhole cover has since been replaced).

Defective Laterals: Several laterals were observable from the beach, either encased in concrete or as exposed cast iron pipe. Some of these laterals have visible breaks or other defects. Broken and defective laterals are considered to be major sources of sand and infiltration in the sewer main s well as possible spills on the bluff and beach. Express Sewer observed pieces of small diameter pipe (broken lateral pipe) in the sewer main, which is further evidence of the presence of defective laterals upstream. We understand that the City is in the process of inspecting and making repairs of these laterals. Limited Maintenance Access: The cleanout structures (capped tee fittings described as lampholes in Appendix A, Sewer Express Notes) were too small to allow for use of the preferred cleaning and CCTV inspection equipment. The tighter bends in the pipe also limited camera access.
Buried Manholes: At the time of inspection, MH Q-4 and MH Q-5 were buried. They were uncovered and extended to the surface with ABS pipe for the purpose of the inspection efforts.
Work Hours Limited due to Tide Constraints: Cleaning and CCTV inspection work periods were limited to 3-4 hours during negative/low tide conditions. This necessarily resulted in video inspections being rushed.

SEWER CLEANING
Express Sewer conducted pipe cleaning prior to CCTV inspection of the Keller Beach Sanitary Sewer. Prior to cleaning, most segments were impassable to camera equipment due to high levels of sand and deposits and tuberculated pipe corrosion.

Extensive pipe cleaning was conducted, including high-pressure water jetting with a hydronozzle, chain flailing to break off (descale) corroded tubercules, and removal of sand and deposits.

According to Express Sewer, pipe cleaning took many hours for most segments due to the high levels of accumulated sand and deposits (particularly near MHs Q-9, Q-14 and Q-15) and/or pipe corrosion that was resistant to descaling.

Figure 1. View of Keller Beach sewer pipe prior to cleaning. Hydro nozzle is in use. Chain flail is in view.

CCTV INSPECTION
At the time of Coastland’s review of the CCTV videos, Express Sewer’s CCTV inspections had been conducted between MH Q-1 and MH Q-9, and between MH Q-13 and MH Q-25. No inspections have yet been conducted of the 1,144 feet of sanitary sewer between MH Q-9 and MH Q-13.

Express Sewer prepared an exhibit of sewer video locations and a spreadsheet with inspection notes (attached as Appendix A). The exhibit and spreadsheet have color coding for each sewer segment indicating various inspection results. Green colored segments indicate segments where the video captured clear visual images of the pipe interior. Yellow colored sewer segments indicate partial or limited visual images of the pipe interior. CCTV inspection of the remaining sewer segments (red-colored in spreadsheet, not colored on exhibit) did not obtain a clear visual image of the pipe or video inspection was not completed.

The CCTV video inspections conducted to date consist of 4,221 feet of pipe (out of the 5,392 linear feet of sewer per the as-builts). According to Sewer Express, the videos had the following characteristics:
2,735 feet of clear visual inspection (green coded)
1,108 feet of limited clear visual inspection (yellow coded) 379 feet of incomplete or not completed video (red coded) Eight of the videos were incomplete. Five of the incomplete videos recorded inspections for less than 50% of the pipe length. Three of the incomplete videos did not have distances measured so their lengths are unknown. Incomplete videos were generally caused by pipe obstructions, impassable bends, poor access which prevented the inspectors from using the equipment needed to drawdown the water level in the pipe, or for unknown reasons.

REVIEW OF CCTV INSPECTION
Coastland reviewed CCTV videos and prepared inspection reports for each segment as discussed in the section above. All comments are based on NASSCO PACP standards and guidelines. The CCTV inspection reports are attached as Appendix B. A summary table of CCTV inspection observations is included as Table 1.

CONDITIONS ASSESSMENT
Our assessment of pipe conditions was limited to the portions of the pipe that were observable on the inspection video. Most of the CCTV inspection videos are of poor quality in terms of presenting a complete view of wall conditions throughout the entire length of pipe. The CCTV inspections were conducted under extremely difficult site limitations and time restraints (due to tide) so the resulting poor video quality is expected and understandable. Several inspections were incomplete due to obstructions or camera being underwater. Other inspections were blurry or shaky and taken at high speed. Often there were significant periods where the camera was underwater (with zero visibility) or the camera was pointed at the soffit and only portions of the pipe were visible.

A general assessment of pipe deficiencies are summarized below.

Interior Pipe Wall Conditions
According to Express Sewer, the entire reach of Keller Beach sanitary sewer was extremely corroded prior to cleaning. As shown in the post-cleaning images below, the upstream reach of pipe (MH Q-17 to MH Q-25) was generally descaled, while further downstream (MH Q-1 to MHQ- 17) extensive turberculation and wall roughness remains.

MH Q-1 to MH Q-2 MH Q-2 to MH Q-3
MH Q-3 to MH Q-4 MH Q-4 to MH Q-5
MH Q-5 to CO Q-6 CO Q-6 to CO Q-8
(MH Q-7 was not constructed)

CO Q-8 to MH Q-9
No CCTV provided between
MH Q-9 and MH Q-13
MH Q-13 to MH Q-14 MH Q-14 to MH Q-15
MH Q-15 to CO Q-16 CO Q-16 to MH Q-17
MH Q-17 to CO Q-18 CO Q-18 to MH Q-19

MH Q-19 to CO Q-20 CO Q-20 to CO Q-22
CO Q-22 to CO Q-24
(blurry – poor visual)
CO Q-24 to MH Q-25
No holes or cracks were observed in any segment (that was visible) of the Keller Beach sanitary sewer main, though the pipe walls show extensive evidence of pipe corrosion. Corrosion of the pipe walls (with a decrease of the pipe’s structural integrity) has resulted over time due to the presence of corrosive hydrogen sulfide gas, a natural sewer gas, in the unlined pipe. The presence of extensive sags and pipe obstructions further exacerbate the problem by causing organic solids to settle and increases localized hydrogen sulfide gas production in the pipe.

Corrosion will continue to deteriorate the pipe’s structural integrity as long as the pipe remains exposed to sewage gases.

Sags in Pipe Profile
In the Keller Beach sanitary sewer, most segments were observed to remain full of water after cleaning, even after the upstream flow has been plugged. Non-draining gravity pipes are generally caused by sags in the pipe profile or obstructions/pipe roughness. All of these conditions are present in the Keller Beach sanitary sewer to varying degrees.

When water levels are high enough for the camera to be submerged underwater, that is generally an indication of a severe sag in the pipe. Moderate to severe sags were present in twelve (12) of the seventeen (17) inspected pipe segments.

Sags in the pipe profile have likely resulted from inconsistent pipe support from the subgrade due to shifting sand under and around the pipe. Sags are expected to worsen as the pipe’s structural integrity weakens.

Broken Laterals and Missing MH cover
Prior to cleaning, several segments of the pipe were choked with sand, which is evidence of breaks in the collection system, which allows inflow of seawater and sand into the sewer collection

system. Some segments reportably refilled with sand in two weeks, suggesting the defects are extensive. Recent inspection by Bayhawk of sewer laterals on the beach has shown evidence of cracks and breaks. The City is currently undergoing the assessment and repair of these laterals which should significantly reduce the inflow of seawater and sand into Keller Beach sanitary sewer.

CONCLUSIONS
Coastland draws the following conclusions based on our CCTV assessment and understanding of the site conditions.

Poor Pipe Conditions
The Keller Beach sanitary sewer has been in service for approximately 62 years and has reached the end of its useful design life. The pipe that is visible and CCTV inspected is highly corroded and the remaining wall thickness and structural strength is unknown, but clearly compromised.

The sewer main has been partially descaled but remains weakened and increasingly prone to cracks and breaks. The pipe’s profile has extensive sags, and will continue to sag and adjust due to its location in the surf zone under the force of shifting sand and wave action. Laterals are in poor condition with known and suspected defects which the City/Homeowners are obligated to correct.

Poor Access Conditions
Access is poor to the Keller Beach Sewer which makes repair and maintenance difficult and expensive. Access issues include:
Lack of vehicle access to the sewer main on the beach. Limited foot traffic access due to private property and cliffs. Work periods that are restricted to negative/low tide conditions (often 3-4 hours). The sewer pipe is underwater and inaccessible during normal tide conditions. Lack of manholes at sharp bends in the sewer alignment. Bends greater than 30 degrees can block equipment access for maintenance and inspection. Cleanout structures are too small to allow equipment access for maintenance and inspection.
Manhole lids are corroded shut and must be replaced whenever they are opened. Beach access is slippery and creates a hazardous work condition.

High Risk of Environmental Impacts in the Event of Pipe Failure Due to the sewer main’s location in the bay, a pipe failure would cause significant and unavoidable environmental impacts.

Environmental Permitting
Environmental permits will most likely be required for improvements to the sanitary sewer system and may be very difficult to obtain.

RECOMMENDATIONS
Coastland recommends that the City take immediate action to address the following deficiencies in the Keller Beach Sanitary Sewer:
Poor conditions of the sewer main pipe, access points, and laterals; Poor access conditions for repair and maintenance; and High risks and costly environmental impacts in the event of a pipe failure.

For the City’s consideration, Coastland offers two options for making the needed improvements:
repair of the existing system in place, and replacing the sewer main in a new location.

Option 1: Repair of the Existing Sewer Main
The preferred method of repairing the sewer main in place would be Cured-in-Place Pipe (CIPP) lining, which is a completely trenchless repair method which involves a heat or UV-cured resin- impregnated “sock” liner that can be installed through manholes. Express Sewer, a CIPP contractor, evaluated the possibility of CIPP-lining the sewer main and considered the project doable but expensive. The following tasks would likely be required:
Repair the sewer laterals that are causing the sewer main to fill with sand (in progress).

Sewer laterals that are broken or crushed will need to be replaced and reconnected to the sewer main.
Descale the pipe walls of the lower portion of the sewer main and remaining pipe segments not yet cleaned or CCTV inspected using robotic equipment to remove tuberculation and roughness. It should be verified that descaling can be done to the degree that CIPP lining can be applied.
Install manholes at tight bends and as needed for equipment access. This task would require open cut excavation and a system to dewater/dam the excavation area.

Environmental permitting may not allow for open cut excavation in the bay. CIPP-line the sewer mains.
CIPP-line the sewer laterals (if possible) and seal the lateral/main connection with a top- hat.

The benefits of CIPP-lining the sewer main would be to prevent further corrosion and extend the design life of the sewer main. The CIPP-liner would provide some minimal structural wall strength, but would not fully recover the lost pipe strength and ductility which is unknown.

Additional assessment of the existing cast iron pipe thickness and strength would be needed to evaluate whether the CIPP-lined sanitary sewer main would provide sufficient strength to withstand site conditions. The extended design life of the CIPP-lined pipe is difficult to predict.

The drawbacks of the CIPP liner option are that the repair:
Does not provide a full new construction design life to the sewer main facilities, Does not correct sags, and the pipe profile will continue to adjust and degrade, Does not address the poor maintenance access, and
Does not address the high-risk and cost of sanitary sewer overflows into the bay in the event of a pipe break,

Is an extremely costly repair.
Environmental permits will most likely be required for improvements to the sanitary sewer system and may be very difficult to obtain.

Option 2: Replacement of the Keller Beach Sewer in a New Location The replacement of the Keller Beach Sewer in a new location would involve the following tasks:
Conceptual design of lift stations and alignment options, Alternative Analysis,
Survey,
Land or Easement Acquisition,
Detailed Design,
Permitting,
Funding Acquisition,
Construction of new sewer main and lift stations/Abandonment or removal of existing facilities, and
Installation of residential lift stations in houses below the proposed sewer main.

The benefits of this option is that it is capable of addressing all the deficiencies of the existing Keller Beach Sanitary Sewer, and providing a full design life for the new facilities.

The major drawbacks of the sanitary sewer main replacement options are that it:
Is an extremely costly project,
Would take years to implement, and
Would need numerous Homeowners’ participation.

Coastland’s preliminary assessment is that Option 1: CIPP-lining the Keller Beach sewer main may be constructable with additional study (additional CCTV, descaling and pipe material thickness study), but is an expensive repair that does not sufficiently address the deficiencies of the system to render it a cost-effective solution. In addition, environmental permits will most likely be required for improvements to the sanitary sewer system and may be very difficult to obtain. Option 2: Replacement of the Keller Beach Sewer is an expensive solution but it addresses all the system deficiencies. Coastland considers the high cost of replacement to be a necessary expense to avoid the high risk of pipe failure due to aged sanitary sewer system that is difficult to maintain.

Coastland advises the City to conduct its own assessment and take immediate action to address the Keller Beach sanitary sewer deficiencies.

In the short term, Coastland supports the City’s in-progress efforts to CCTV inspect and repair or replace the sewer laterals connecting to the Keller Beach Sanitary Sewer. 11/17/2021 3:52 PM Page 1 of 3
Coastland/NCE/City of Richmond
Keller Beach Sewer CCTV Assessment
Table 1. Summary Table of CCTV Inspection Observations Downstream
MH
Upstream
MH
Direction
of Survey
Pipe
Length
Inspection
Length
% of Pipe
Inspected
Pipe
Size (in)
Pipe
Material Interior Pipe Wall Condition Water Level Condition during Inspection Pipe Features Observed General Inspection Notes MH Q-1 MH Q-2 DS 393 153 39% 12 CI
Severe roughness remains after
descaling efforts, especially on
top half of pipe.

Pipe holding full of water; Water
surface pulled down by
hydronozzle, even so pipe was
typically 20-50% full; Moderate
to severe sags
Start at MH Q-2;
Did not reach MH Q-1;
No laterals observed
Distance indicated on camera was
not accurate; Forward progress in
camera stopped due to obstruction
MH Q-2 MH Q-3 DS 139 139 100% 12 CI
Severe roughness remains after
descaling efforts, especially on
top half of pipe.

Pipe holding full of water; Water
surface pulled down by
hydronozzle, even so pipe was
typically 20-50% full; Moderate
to severe sags
Start at MH Q-3;
Inspection ended at MH Q-2;
No laterals
Complete inspection
MH Q-3 MH Q-4 DS 242 242 100% 12 CI
Severe roughness remains after
descaling efforts, especially on
top half of pipe.

Pipe holding full of water; Water
surface pulled down by
hydronozzle. Water level
5-10% during inspection
Start at MH Q-4;
Inspection ended at MH Q-3;
2 laterals observed
Complete inspection
MH Q-4 MH Q-5 DS 219 Unknown Unknown 12 CI
Severe roughness remains after
descaling efforts. Infiltration
runner observed (at 21:20
minutes)
Pipe holding full of water; Water
surface pulled down by
hydronozzle. Water level
5-10% during inspection
Start at MH Q-5;
Did not reach MH Q-4;
No laterals observed
Distance indicated on camera was
not accurate; Camera stopped due
to unknown impediment
MH Q-4 MH Q-5 US 219 96 44% 12 CI
Severe roughness remains after
descaling efforts, especially top
half of pipe.

Pipe holding full of water; Water
surface pulled down by
hydronozzle, even so pipe was
typically 5-40% full; Moderate
sags
Start at MH Q-4;
Did not reach MH Q-5;
6" sewer connected at
MH Q-4
Distance indicator working;
Inspection abandoned by debris in
pipe.

MH Q-5 CO Q-6 DS
(reverse) 305 291 95% 12 CI Significant/Severe roughness remains after descaling efforts.

Pipe holding almost full of water;
Camera underwater; Severe sags
Start at CO Q-6;
Did not reach MH Q-5;
No laterals observed
Inspected in reverse. Distance
indicator not working. Poor visual -
view obscured by pull-rope. No
survey from CO-6 for 14.3'.

Inspection abandoned at sharp 30-
degree bend.

CO Q-6
CO Q-8
(MH Q-7
was not
constructed)
DS
(reverse) 357 Unknown Unknown 12 CI
Unknown: Pipe wall visible for
only 11 seconds of video. Severe
roughness remains after
descaling efforts.

Pipe full of water during survey:

Camera underwater; Severe sags
Start at CO Q-8;
Did not reach CO Q-6;
No laterals observed
Pull back with push camera;
Unusable footage due to equipment
limitations because of poor access;
Only visual was 11 seconds on
partial pipe wall (16:08 - 16:19)
CO Q-8 MH Q-9 DS 182 21.7 12% 12 CI
Significant/Severe roughness
remains after descaling efforts.

Only 22' of pipe was observed.

Inspectors unable to plug off
flows for TV inspection due to
large line coming in from
neighborhood. Pipe at start
flowing 40-50%. Camera
underwater; Severe sags
Start at MH Q-9;
Did not reach CO Q-8;
No laterals observed
Camera blocked by tuburculated
corrosion at 22'
MH Q-9 MH Q-10 257 0 0% 12 CI No CCTV provided
MH Q-10 CO Q-11 166 0 0% 12 CI No CCTV provided
CO Q-11 MH Q-12 393 0 0% 12 CI No CCTV provided
MH Q-12 MH Q-13 328 0 0% 12 CI No CCTV provided
11/17/2021 3:52 PM Page 2 of 3
MH Q-13 MH Q-14 DS 261 261 100% 12 CI
Significant/severe roughness
observed, expecially top half of
pipe; Grease observed
Pipe was empty during
inspection. Water surface pulled
down by hydronozzle. Camera
underwater
Start at MH Q-14;
Intruding lateral at 161.1';
Inspection ended at MH Q-13
Complete inspection
MH Q-14 MH Q-15 DS 173 Unknown Unknown 12 CI
Severe roughness observed,
expecially top half of pipe; Deep
sags present throughout pipe
Water level 25-100%; Camera
underwater; Severe sags
Start at MH Q-15;
Did not reach MH Q-14;
High-flowing lateral into MH Q-15;
Visual poor due to high water level
MH Q-15 CO Q-16 DS 252 45 18% 10 CI Severe roughness observed, especially top half of pipe.

Water level 15-50%; Moderate to
severe sags
Start at CO Q-16;
Did not reach MH Q-15
Camera blocked by tuburculated
corrosion at 45'
MH Q-15 CO Q-16 US 252 15 6% 10 CI Unknown:

No pipe visual
Inspectors unable to drawdown
water due to reverse setup;
Camera underwater 0-15'+;
Severe sag
Start at MH Q-15;
Did not reach CO Q-16;
No visual due to high water;
Inspection abandoned at 15'; Could
not drawdown water due to poor
access conditions from CO;
CO Q-16 MH Q-17 DS 207 208 100% 10 CI Significant/Severe roughness observed
Water level 5-50%; Moderate to
severe sags
Start at MH Q-17;
Lateral at 188.1';
Bend at 206';
Ended at CO Q-16
Good pipe visual; Difficulty passing
bend in pipe
MH Q-17 CO Q-18 DS
(reverse) 246 246 100% 10 CI
Pipe visual is poor; Where pipe is
clear, pipe appears to be fully
descaled. Evidence of significant
pipe corrosion, especially top half
of pipe.

Water level 5-100%
Severe sags (camera underwater)
last third of pipe up to MH Q-17
Start at MH Q-17;
Push cam to CO Q-18;
Pull back with hydronozzle;
Ended at CO Q-18
Poor pipe visual; rapid/shaky
footage; only one side of pipe in
view; no stills to inspect pipe
condition; distance meter not
working
CO Q-18 MH Q-19 US
(reverse) 185 185 100% 10 CI Pipe walls are fully descaled after cleaning. Rough wall surface.

Pipe holds water, may be due to
sags. Water level 10-20% in
reverse footage
Start at MH Q-19;
Push cam to CO Q-18;
Pull back with hydronozzle;
2 laterals observed;
Ended at MH Q-19
Pipe inspected in reverse. MH Q-19
appears to be possible source of I/I
and should be inspected.

MH Q-19 CO Q-20 DS 201 201 100% 8 CI Pipe walls are fully descaled after cleaning. Rough wall surface.

Water level 5-100%
Severe sags (camera underwater)
Start at CO Q-20;
Push cam to MH Q-19;
Pull back with hydronozzle;
1 lateral observed at 5';
Ended at CO Q-20
Push cam operated in reverse. Poor
visual: rapid/shaky footage; no stills
to inspect wall condition
CO Q-20 CO Q-22 US
(reverse) 273 273 100% 8 CI
Rough wall surface. Pipe walls
are fully descaled after cleaning.

Poor visual (blurry and rapid
return footage)
Low water level in most of
reverse footage due to
hydronozzle. Severe sags; Camera
underwater 206'-226'
Start at CO Q-22;
Ended at CO Q-20;
Pull back with hydronozzle;
Ended at CO Q-22
Push cam operated in reverse. Poor
visual: rapid/shaky footage; no stills
to inspect wall condition
CO Q-22 CO Q-24 DS
(reverse) 344 344 100% 8 CI
Very poor visual (blurry and
rapid). Rough wall surface. Pipe
walls appear to be fully descaled
after cleaning.

Low water level in footage due to
hydronozzle.

Start at CO Q-24;
End at CO Q-22
Push cam operated in reverse. Poor
visual: rapid/shaky footage; no stills
to inspect wall condition
CO Q-24 MH Q-25 DS 307 274 89% 8 CI
Rough wall surface. Pipe walls
are fully descaled after cleaning.

Poor visual (blurry and rapid
return footage)
Water level 5-25%
Start at MH Q-25;
2 laterals observed;
Did not reach CO Q-24
Push cam operated in reverse. Poor
visual: rapid/shaky footage; no stills
to inspect wall condition; complete
inspection (including US footage)
Coastland/NCE/City of Richmond
Keller Beach Sewer CCTV Assessment
Table 1. Summary Table of CCTV Inspection Observations Downstream
MH
Upstream
MH
Direction
of Survey
Pipe
Length
Inspection
Length
% of Pipe
Inspected
Pipe
Size (in)
Pipe
Material Interior Pipe Wall Condition Water Level Condition during Inspection Pipe Features Observed General Inspection Notes 11/17/2021 3:52 PM Page 3 of 3
CO Q-24 MH Q-25 US 307 70 23% 8 CI
Rough wall surface. Pipe walls
are fully descaled after cleaning.

Poor visual (rapid footage)
Water level 5-10%
Start at CO Q-24;
1 lateral observed (overlapping
DS inspection);
Did not reach MH Q-25
Push cam operated in reverse. Poor
visual: rapid/shaky footage; no stills
to inspect wall condition; complete
inspection (including DS footage)
Coastland/NCE/City of Richmond
Keller Beach Sewer CCTV Assessment
Table 1. Summary Table of CCTV Inspection Observations Downstream
MH
Upstream
MH
Direction
of Survey
Pipe
Length
Inspection
Length
% of Pipe
Inspected
Pipe
Size (in)
Pipe
Material Interior Pipe Wall Condition Water Level Condition during Inspection Pipe Features Observed General Inspection Notes APPENDIX A:

EXPRESS SEWER NOTES AND EXHIBIT
City of Richmond
Keller Beach Sewer Video Notes
Start Node End Node Distance Notes
MH 4 MH 3 237.0
Left Tap @ 78.8'
Left Tap @ 210.3'
Clear visual
MH 3 MH 2 137.0 Pipe holding full pipe water, used Vaccon to pull water down for TV inspection MH 2 MH 1 393.0 Pipe holding full pipe water, used Vaccon to pull water down for TV inspection MH 5 MH 4 233.0 Pipe holding full pipe water, used Vaccon to pull water down for TV inspection Part 1 MH 4 MH 5 96.0 Pipe holding full pipe water, used Vaccon to pull water down for TV inspection Part 2 CO 6 MH 5 320.0
Pipe holding almost full pipe water, no acces with mainline TV camera from US CO. Inspected from downstream to upstream CO-06. Pulled back camera while recording to capture visual of pipe. Operator wheel rolled distance and made it to MH 5 Clear visual from 319.8' - 203.8'
Belly from 203.8' (Approximately 3 - 5 ft no clear visual) hard to determine due to distance staying at 203.8' on pull back.

Clear visual approximately from 198.8' - 58.1'
Belly approximately from 58.1' - 14.3', TV truck got a visual up to the bend There is still an unclear visual from CO 6 up to 14.3'
CO 8 CO 6 357.0
Pipe holding full pipe water, no accress thru lamphole for mainline TV camera, camerad with push camera and pulled back live.Clear visual @ 16:08 - 16:19 from video (Distance stayed at

0.0 Ft throughout video, couldn't determine distance).

Operator wheeled rolled distance from CO 8 to CO 6. 357' MH 9 CO 8 21.7
Unable to plug off flows for TV inspection due to large line coming in from neighborhood.

Pipe at start flowing 40-50%. Clear visual up to 21.7'
Unable to pass corrosion in pipe at 21.7'. Pipe has severe scaling that camera could not pass and cleaning crew could not remove with chain flail.

Line is incomplete
MH 17 CO 16 208.0
Pipe is in fair condition, some areas of moderate to severe scaling. Left Tap @ 188.1' 45 bend in pipe 3' from CO 16
CO 16 MH 15 45.0
Attempted to Tv inspect pipe from MH15 reverse but too much water to get visual. Set up from MH 17, ran camera down to CO16. Started TV inspection, Clear visual to 45 ft.

Severe corrosion @ 45.3', unable to pass
Did not meet up, line is incomplete Part 1
MH 15 CO 16 153.0
Belly from 0.0' - 15.3'
Unable to Camera due to line holding water and reverse setup Did not meet up, line is incomplete Part 2
MH 19 CO 18 189.0
Mainline holds water, Tv insopected while Jetting to pull water out of pipe. Captured clear video of pipe during pull back with footage. Left Tap @ 42.5' Left Tap @ 94.4'
Clear visual from pull back
CO 18 MH 17 246.0
Unable to access with main line camera, unable to push with push camera, operator had to pull push camera in with hydro nozzle and then video while pulling camera back. There are sections in the video that have clear and not clear visual.

Operator made it to MH 17. Footage distance shows 0.0 throughtout due to process.

Operator verifies footage with wheel roller.

CO 20 MH 19 201.0 Clear visual
CO 22 CO 20 275.0
Unable to access with main line camera, unable to push with push camera, operator had to pull push camera in with hydro nozzle and then video while pulling camera back, 7:08 mark CO 24 CO 22 344.0
Unable to access with main line camera, unable to push with push camera, operator had to pull push camera in with hydro nozzle and then video while pulling camera back with hydro running to capture video. Footage distance shows 0.0 throughtout due to process. operator verifies footage with wheel roller.

MH 25 CO 24 274.0
Left Tap @ 232'10"
Left Tap @ 177'4"
No clear visual from 0'0" - 13'0"
Line is incomplete
Overlapped with inspection #2, confirmed by locating Part 1 CO 24 MH 25 70.0
Right Tap @ 58'7"
Right Tap @ 67'5"
Overlapped with inspection #1, confirmed by locating Part 2 MH 15 MH 14 162.0
Pipe Has poor grade , crew fighting water and areas of corrosion in pipe. Crew had to follow hydro nozzle close for visual. Close to nozzle video 0 - 162' then debris, unable to pass end of video
MH 14 MH 13 260.0
Left Tap @ 161.2'
Clear Visual
Segment of belly @ 232.0' - 242.4'

APPENDIX B:

CCTV INSPECTION REPORTS
CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 3/22/2021 Length: 152.8' inspected out of 393' (incomplete) Street: 3+92.95 Material: CI
Upstream MH: MH Q-2 Pipe Diameter: 12"
Downstream MH: MH Q-1 Direction of Video: Downstream
Distance (feet) Code Clock/
Position Comment Image

0.0 AMH Q-2
MWL
>50%
Only top of pipe
visible

0.5 Severe internal
corrosion

16.2 Severe internal
corrosion

16.2 MWL
20%
Severe internal
corrosion

16.2 MGO
cam in pipe view
17m44s, mostly under
water

16.2 MWL 20% with vac wash

16.2 MGP 09 unk, possible tap?
(18:32)

16.2 SCP 08-03 S01 (18:34)

16.2 MGP 09 unk, unsure if void
(18:41)

43.5 MCU cam tilted & aimed to
soffit right after

64.0 MCU Camera underwater

66.4 MGO cam stationary 26m to
40m,

77.1 MGO cam in motion but
choppy video
131.2 MWL 35%
131.2 MGO cam stationary,
difficulty moving
forward
152.8 OBZ 03-09
no forward progress
from here (51:30 to
end of video)
152.8 MSA Survey abandoned

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 3/22/2021 Total Length: 139' - complete inspection Street: 5+29.63 Material: CI
Upstream MH: MH Q-3 Pipe Diameter: 12"
Downstream MH: MH Q-2 Direction of Video: Downstream
Distance (feet) Code Clock/Positi
on Comment Image

0.0 AMH Q-3

0.0 MWL 20% with power wash

0.0 SZ 09-04 S01, is this SCP?

15.1 SZ F01

15.1 SZ 07-05 S02, throughout line

99.5 OBR 04-08 20%, removed by jet wash
105.3 DAZ 05, 07 S03
122.7 DAZ F03
123.9 MWL(S) 40%, S04
130.8 MGO cam rotated 90 degrees
132.1 MGO equip issue, cam has no
traction

140.4 AMH Q-2, adjusted from 137.3

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 3/22/2021 Total Length: 242' - complete inspection Street: 7+71.85 Material: CI
Upstream MH: MH Q-4 Pipe Diameter: 12"
Downstream MH: MH Q-3 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.0 AMH Q-4

0.0 MWL 10%

0.0 SCP 07-04 S01

6.0 OBZ 04-08

21.9 MGP 10 possible TFC

46.0 MWL 5%

78.8 TFA 09 adjusted distance, was 82.5
on approach
101.3 OBZ 04-08 S02 repetitive
210.3 TFA 09 adjusted distance, was 212.3
on approach
237.4 AMH Q-3, dist adjusted from 239.4

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 3/23/2021 Total Length: Unknown distance inspected out of 219' (incomplete) Street: 9+90.03 Material: CI
Upstream MH: MH Q-5 Pipe Diameter: 12"
Downstream MH: MH Q-4 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image
0*
Minutes of video
because distance
indicator was not
working
AMH Q-5

0.0 MWL 20%

0.0 SCP 07-05 S01
16:12 MGP dist adjusted to 232.8 prior to
start of survey
17:00 MGO distance remains 232.8 during
survey
17:59 OBZ 04-08
18:09 MWL 5%
21:20 IR 2:00 Infiltration runner
46:47 OBZ 03-09 30% blocked
47:33 to end MGO-MSA
no progress, would eventually
lose visibility (possibly MCU),
not completed

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 3/24/2021 Total Length: 96' out of 219' (incomplete) Street: 9+90.03 Material: CI
Upstream MH: MH Q-5 Pipe Diameter: 12"
Downstream MH: MH Q-4 Direction of Video: Upstream
Distance (feet) Code Clock/Position Comment Image

0.0 AMH Q-4:

0.0 MWL 20% Lateral at manhole

0.0 SCP 07-05 S01

17.6 MGO cam unsteady

20.7 SCP

22.3 MWL 40%

88.9 MGP debris

96.1 MWL 5%

96.1 MSA Abandoned, 2 of 2

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/2/2021 Total Length: 319.8'
Street: 12+95.89 Material: CI
Upstream MH: CO Q-6 Pipe Diameter: 12"
Downstream MH: MH Q-5 Direction of Video: Downstream (reverse) Distance (feet) Code Clock/Position Comment Image

0.0 AMH At MH Q-5

0.0 MCU S01 Camera underwater (no image)
319.8 MCU F01 Camera underwater (no image)
319.8 ACO At MH Q-6
319.8 MGO
camera on grade, in reverse
(pulled); distance remains
319.8
10:56 SCP 07-05 S02
11:47 MWL 20%
12:11 MCU S03 Camera underwater (no image)
20:53 MCU F03 Camera underwater (no image)
23:03 MCU S04 Camera underwater (no image)
34:03 MGO camera stopped, 14.3'
distance; possibly at bend
34:24 MGO end of survey

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/5/2021 Total Length: Unknown distance out of 357' Street: 16+52.06 Material: CI
Upstream MH: CO Q-8 Pipe Diameter: 12"
Downstream MH: CO Q-6 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.00 ACO At CO Q-8
MGP
16:08 - 16:19 per survey, 6
seconds:

Camera in reverse, mostly
MCU, DAE/DAGS 08-09

0.00 MSA no usable footage

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/7/2021 Total Length: 21.7' inspected out of 182' (incomplete) Street: 18+08.07 Material: CI
Upstream MH: MH Q-9 Pipe Diameter: 12"
Downstream MH: CO Q-8 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.0 AMH Q-9

0.0 MWL

4.9 SCP 03

5.9 MWL 50%

6.5 MCU Camera underwater

7.3 MGP out of MCU

8.9 MGP possible RMB

9.0 MCU Camera underwater (no images)

11.7 DAE 09-03 S01

13.9 DAE 09-03 S01, distance adjusted

6.0 MGP distance adjusted from 13.9

6.0 MCU Camera underwater (no images)

10.9 MGP out of MCU, distance
adjusted

13.1 MCU S02 Camera underwater (no images)
Camera underwater (no images)

21.7 MCU F02 Camera underwater (no images)

21.7 MSA no forward progress Camera underwater (no images)

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 7/14/2021 Total Length: 260 - complete inspection Street: 32+05.23 Material: CI
Upstream MH: MH Q-14 Pipe Diameter: 12"
Downstream MH: MH Q-13 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.0 AMH Q-14

0.0 MWL 20%

0.0 MGP prewash, MWL to 5%

0.0 SRI 09-03 S01

10.3 SCP 08-05 at joint

28.7 SCP 08-04

71.3 SCP 08-02

78.1 SSS 02 S01

85.4 SSS F01
102.5 SSS 10 S02
109.4 SSS F02
109.4 SCP 07-05 at joint

111.3 SSS 11-01
116.1 SSS 02
123.4 SSS 10-03
126.6 SCP 09-05 at joint
136.9 SSS 10-03 S03
154.4 MWL 20%
161.1 TBI 11 1-inch intrusion
197.0 MWLS 50%, S04
203.8 SCP 09-04
210.0 SCP 09-04 at joint
215.3 MGP 03
232.2 H or SCP 01
231.2 MGO-MCU cam aimed at soffit Camera underwater (no image) 255.5 MCU Camera underwater (no image)
260.0 AMH Q-13

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 5/28/2021 Total Length: Unknown distance out of 173' - incomplete Street: 33+78.23 Material: CI
Upstream MH: MH Q-15 Pipe Diameter: 12"
Downstream MH: MH Q-14 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.0 AMH Q-15

0.0 MWL 25%

0.0 SSS 09-03 S01

7.3 MGO cam titled 90 deg left

15.8 SSS F01

15.8 SCP 09-03 S02

19.7 MCU Camera underwater (no image)

53.8 54.4 MCU Camera underwater (no image)

74.6 OBZ 02-09
- MGO-MSA
poor visibility, multiple
blackouts/MCU thorughout
remainder of video (from 44-
min mark to end)

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/21/2021 Total Length: 45' out of 252' (incomplete) Street: 36+30.20 Material: CI
Upstream MH: CO Q-16 Pipe Diameter: 10"
Downstream MH: MH Q-15 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.0 ACO At CO Q-16

0.0 MWL 50%

0.0 DAE 09-03 S01

3.9 MCU Camera underwater (no image)

5.6 DAE F01

5.6 MWL 25%

6.0 SSC 10-02 S02

40.2 SSC F02

41.4 SCP 12-12 at/near joint

44.3 to 45.2 MGP 12-03

45.3 MSA Abandoned, equipment
retrieved Inspection incomplete due to severe corrosion obstruction

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/22/2021 Total Length: 15.3' out of 252' (incomplete) Street: 36+30.20 Material: CI
Upstream MH: CO Q-16 Pipe Diameter: 10"
Downstream MH: MH Q-15 Direction of Video: Upstream
Distance (feet) Code Clock/Position Comment Image

0.00 AMH Q-15

0.00 MWL 100%

0.00 MGP Surcharged up the structure

0.00 MCU Camera underwater (no image)

6.00 MGP will attempt vac behind cam

15.30 MSA Abandoned

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/21/2021 Total Length: 207.9 - complete inspection Street: 38+37.70 Material: CI
Upstream MH: MH Q-17 Pipe Diameter: 10"
Downstream MH: CO Q-16 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.0 AMH

0.0 MWL

9.4 SSS 08-12 S01, repetitive throughout

11.7 SRI 09-03 S02
111.2 MWL 40%
141.3 SCP 08-04
147.4 SCP 08-04
148.1 MGP cam mostly submerged,
difficulty with forward motion
163.9 SCP 08-04
184.2 SCP 08-04

188.1 TF 09, w/ OBZ 03-09, 50%
188.3 MWL 40%, submerged
195.6 MGP used VAC to drop MWL,
unsure if there's MWLS
203.0 MGO cam stationary for minutes,
no forward progress Difficulty passing bend in pipe
207.9 ACO Q-16; mid-line, looks more
like TFC 11 o'clock

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/30/2021 Total Length: 246 - complete inspection Street: 40+83.63 Material: CI
Upstream MH: CO Q-18 Pipe Diameter: 10"
Downstream MH: MH Q-17 Direction of Video: Downstream (Push camera with hydronozzle in reverse) Distance (feet) Code Clock/Position Comment Image

0.0 ACO At CO Q-18

0.0 MWL surcharged at structure

0.0 MGO
footage out of focus, appears
to be pushing cam on
grade/invert; distance
remains 0.0' throughout
06:51 MGP-AMH
At MH Q-17 per survey note;
cam on grade (not
centered/elevated); blurred,
out of focus; footage by video
timestamp, not by distance,
cam in reverse
07:49 MGO start of reverse footage
07:57 MWL 40%, out of focus
07:58 MCU Camera underwater (no image)
08:05 OBZ 05-07 S01, debris
08:47 MGO cam unstable
09:23 MGO cam unstable
14:05 ACO At CO Q-18, end of reverse
footage

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/29/2021 Total Length: 185 - complete inspection Street: 42+68.13 Material: CI
Upstream MH: MH Q-19 Pipe Diameter: 10"
Downstream MH: CO Q-18 Direction of Video: Upstream (Push camera with hydronozzle in reverse) Distance (feet) Code Clock/Position Comment Image

0.0 AMH Q-19

0.2 MWL 20% (20:53)

0.5 SSS 10-02 S01, throughout pipe

24.9 MGP abrupt drop

29.3 MWL 10%

42.5 TBI 11 4" lat, 2" intrusion

91.9 obz 04-08

94.4 TF 09 4" lat
134.6 OBZ 03-09 50% blocked, chain flailed
140.7 MGO blackout, no actrivity 10:35 -
42:00

94.8 MGP
42:00 resumed, dist from
140.7, may have been
retrieved
119.1 MGO turbulent footage (44:39)
124.9 MCU (46:07) Camera underwater (no image)

131.5 MGO cam tilted 90d
counterclockwise
132.7 MCU Camera underwater (no image)
156.5 MGO blacked out approx 5min
159.7 MGO cam too close to cleaning
equip, very poor visibility
173.4 MGO-MCU blackout, no visibility (1:01:13
to 1:44:05) Camera underwater (no image)
173.7 MGO turbulent footage, cam very
close to cleaning equip
189.2 ACO Q-18
189.2 MGO reverse survey, no new
findings

0.0 AMH Q-19
CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 4/29/2021 Total Length: 185 - complete inspection Street: 42+68.13 Material: CI
Upstream MH: MH Q-19 Pipe Diameter: 10"
Downstream MH: CO Q-18 Direction of Video: Upstream (Push camera with hydronozzle in reverse) Distance (feet) Code Clock/Position Comment Image

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 5/4/2021 Total Length: 201' - inspection complete Street: 44+69.26 Material: CI
Upstream MH: CO Q-20 Pipe Diameter: 8"
Downstream MH: MH Q-19 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image

0.00 ACO At CO Q-20

0.00 MWL
12' 11" DAGS 03-06 at joint maybe
16' 0" MGO cam unsteady
73' 10" MCU Camera underwater (no image)
111' 10" MWL 10%
112' 7" MCU S01 Camera underwater (no image)
200' 5" MCU F01 Camera underwater (no image)
201' 1" MGO-MCU no visibility Camera underwater (no image) 200' 8" MGO retrieved, reverse
185' 2" SSS-SCP 03-09 unclear
154' 5" MGO turbulent, cam unsteady
5' 3" TB 10 not panned, no other info
-0' 1" MGP
-0' 5" MGP
-0' 5" ACO Q-20

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 5/4/2021 Total Length: 273' - complete inspection Street: 47+42.13 Material: CI
Upstream MH: CO Q-22 Pipe Diameter: 8"
Downstream MH: CO Q-20 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image
0' 0" ACO Q-22; turbulent & very poor
visibility throughout
2' 6" MWL 20%
2' 6" TF 09 not panned, other info
8' 9" DAZ 04-08 S01
197' 4 " MGO no visibility 04:41 to 06:16
275' 0" ACO Q-20, start of backwards
survey
273' 7' MCU Camera underwater (no image)
262' 7" MGO
poor visibility throughout,
unable to perform
assessment

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 3/22/2021 Total Length: 344' - complete inspection but low value due to blurry image Street: 58+86.31 Material: CI
Upstream MH: CO Q-24 Pipe Diameter: 8"
Downstream MH: CO Q-22 Direction of Video: DS per header Distance (feet) Code Clock/Position Comment Image

0.0 ACO At CO Q-24

0.0 MWL 15%

0.0 MGO pushed on grade, 0.0' throughout; footage out of focus 17:05 MGP-ACO
cam on grade (not
centered/elevated); blurred,
out of focus; footage by video
timestamp, not by distance,
cam in reverse
17:19 MCU S01 Camera underwater (no image)
18:47 MCU F01 Camera underwater (no image)
18:54 MWL 15%
18:59 MGO cam out of focus, poor video
quality, unable to review
24:07 DAGS 04-07 S02
24:25 DAGS F02
26:54 ACO

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 5/14/2021 Total Length: 70' out of 307' - incomplete Street: 53+93.25 Material: CI
Upstream MH: MH Q-25 Pipe Diameter: 8"
Downstream MH: CO Q-24 Direction of Video: Upstream
Distance (feet) Code Clock/Position Comment Image

0.0 ACO Q-24
2' 1" MGP Start of survey
2' 1" MGO
push cam very unsteady; poor
image quality; splashback at
forward motion, frequent
MCU
3' 9" MWS 30%
57' 9" DZ or RBB 03-05
58' 9" T 03 no other info
67' 5" T 03 no other info
70' 0" MSA Abandoned, 2 of 2

CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date of CCTV: 5/14/2021 Total Length: 274' out of 307' - incomplete Street: 53+93.25 Material: CI
Upstream MH: MH Q-25 Pipe Diameter: 8"
Downstream MH: CO Q-24 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image
0' 0" AMH Q-25
1' 3" MCU-MGO turbulent, poor visibility
15' 4" MWL 5%
25' 8" SSS 11-05 at joint
36' 1" MGO cam aimed at 3 o'cl barrel
62' 10" SCP 02-04
78' 6" MGP debris
203' 0" MGP in reverse, general condition
ok
257' 10" MGP in reverse, general condition
ok
274' 0" MSA 11:13, will continue from CO
Q-24 per survey