Ellertar
City of Richmond
Sole Source Justification
THIS FORM MUST BE COMPLETED AND APPROVED PRIOR TO ANY PURCHASE Contact the Purchasing Division and discuss your rationale before completing this form. If Purchasing can help you make this a competitive purchase, then this form will not be required.
Attach this completed/approved form to requisitions when competitive quotes/bids/proposals are not solicited. (Required for requisitions > $3,000)
Requested Sole Source Supplier:
Company Name: Coastland Civil Engeering Contact Name: Jenny Melman Address: 1400 Neotomas Ave
City: Santa Rose State: CA Zip Code: 95405
Phone Number ( E-Mail [email protected]
Duration of Contract: July 1, 2022 - June 30, 2023
Estimated Cost: $ 475000.00 Funding Source (Account String) 40322931-400733-01C08 Is the product/service IT related? Yes No x If Yes, please attach the approved IT Authorization Form For Product: Is the recommended company the manufacturer of the product? Yes. No X For Product: Does the manufacturer sell the items) through distributors? Yes. No X Description of Product or Service:
Describe the full scope of work or service contemplated including installation if required; items should include brand, model and part number if applicable; (if additional space is needed, include them in a separate page) Coastland Civil Engineering conducted the assessment review of the Keller Beach closed circuit televised project. That project was adopted by City Council via Resolution 8-22.
This is a continuation of that work. This project must be certified by a licensed engineer. As such, the same engineering firm should continue the work. Engineering firms will only certify their own work.
Sole Source Rationale: PLEASE ANSWER ALL THE FOLLOWING QUESTIONS: Explain why the recommended company is the only company that can meet the requirement. Address the following: Are there any other companies who can do this job? What condition (e.g. technological superiority, or performance risks, etc.) exists so that the recommended company has a significant advantage over any other company who can do this job? It is important to sufficiently address the key reason for awarding an order/contract without soliciting competitive bids. The rational must be clear and convincing, avoiding generalities and unsupported conclusions. 1) There are other firms that can do this work. However, this work is a continuation of the Keller Beach Assessment Study. 2) Engineering Firms will only certify their own work. If the City is required to bid this, then we will be forced to review the assessment of the CCTV from the beginning. The council adopted the Assessment Report on January 8, 2022 via Resolution 8-22. 3) Baykeeper requested that a feasibility study should be performed to determine the condition of the Keller Beach Sewer Trunk line due to the sensitive location. This project is time-sensitive due to the reporting requirements of the Settlement Agreement with Baykeeper.
(if additional space is needed, include them in a separate page) Page | 1 Sole Source Form - Rev. May 12, 2016
Complete the following checklist
A specific contractor is the only source of the required item because (check all that apply):
The required items are proprietary to the Contractor, and contractor solely transacts (sells) direct to the customer. (There are no dealers or distributors for contractor).
The required items are proprietary to the Contractor, and contractor does not sell direct to the customer. Contractor solely distributes the item or service through only one dealer or distributor in the United States. (There are no dealers or distributors for contractor).
Note: If item or service is available from more than one source, the item or service may be treated as proprietary, but must be competitively solicited from multiple (two or more) sources.
A specific item is needed:
To be compatible or interchangeable with existing hardware As spare or replacement hardware For the repair or modification of existing hardware Federal or state grant names vendor as condition of funding. (Attach copy of grant that names vendor)
• There is a substantial risk in contracting with any other contractor, (e.g., only one contractor has been successful to date in implementing a difficult manufacturing process or the services sought). In a brief explanation, provide supporting evidence of why other contractors are considered to be unable to overcome the substantial risk.
Continuation of prior Work - Additional item, service or work required, but not known to have been needed when the original order was placed with vendor, and it is not feasible or practicable to contract separately for the additional need. Provide brief explanation and supporting evidence.
Coastland completed the Assessment of the Keller Beach closed-circuit televise (CCTV) of the Keller Beach sanitary sewer line. The next step is to conduct a Feasibility Study regarding the replacement, relocation or repair of the line.
Another engineering firm would not use Coastland's data to conduct the Feasibility Study. The would insist on evaluating the data and then begin the Study. That would cost the City double since the Council had already accepted Coastland's Assessment report via Resolution 8-22 on January 8, 2022.
(if additional space is needed, include them in a separate page) 2 | Page
I acknowledge the City's requirements for soliciting competitive quotes/bids for purchases over $3,000.00 and the criteria for justification for Sole Source purchases. I have gathered the required information, have made a concerted effort to review comparable/equal equipment/services (e.g., market research), and further affirm that there is no conflict of interest involved in the selection made.
Department: Public Works - Water Resource Recovery
Requester Name and Title: Mary Phelps
Note: Requester must be able to defend this justification.
Date: 07/06/2022 Phone: 621-1269
Department Director (Print) Joe Leach, P.E. - (Sign) _ Date: 07/06/2022 Submit completed form to the Purchasing Division (Prior to submission to City Manager) Finance Director:
APPROVED: Alnellen DATE: 7,8,20
NOT APPROVED: _ COMMENTS:
City Manager City Clerk Attesting to Council Approval
(Under $10,000.00) (Over $10,000.00) (Copy of Minutes may be substituted) Note: Richmond Municipal Code Section 2.52.326 Sole Source Procurement requires final approval by the City Manager and/or City Council. Sole Source must be approved by Finance Director, PRIOR to Council Approval.
PROCEDURE
Sole Source purchase/service are exceptions to the normal bidding process and require a detailed justification. In processing Sole Source requests for supplies, services and/or equipment, the Purchasing Division adheres to and is governed by the principles set forth in City of Richmond Municipal Code Section 2.52.326 Sole Source Procurement.
If you are requesting a particular vendor, brand or product, you must make this fact clear on your Sole Source form.
Your request will then be restrictive and non-competitive, and will fall into a sole source category. If the sole source justification is approved, the requisition can be expedited without the normal bidding requirements.
Such a request should not be made unless you are confident that your request is reasonable and appropriately justified to meet the City's requirements and withstand any possible audit. The City's requirements and the format for submitting such requests are contained herein. Sole Source form must be signed by authorized department representative(s). The certification will remain on file for audit purposes.
The following factors DO NOT apply to sole source requests and should not be included in your sole source justification. They will not be considered and only tend to confuse the evaluation process.
1. Personal preference for product or vendor.
2. Cost, vendor performance, and local service (these are generally considered award factors in competitive bidding).
3. Features which exceed the minimum department requirements. 3 Page
RESOLUTION NO. 8-22
A RESOLUTION OF THE COUNCIL OF THE CITY OF RICHMOND, CALIFORNIA,
ACCEPTING THE KELLER BEACH SANITARY SEWER CCTV REVIEW AND
ASSESSMENT REPORT FOR THE CITY OF RICHMOND PREPARED BY
NCE-COASTLAND, DATED JANUARY 3, 2022
WHEREAS, the City of Richmond ("City" entered into a second settlement agreement WHEREAS, the City agreed within the settlement agreement with Baykeeper to make improvements to the City's sewer collection system; and WHEREAS, in addition to specific Capital Improvement Projects listed in the Settlement Contin of Bay Keier Beaches seer Trans ine due to he send ive focation, an determine the WHEREAS, the City established funding in the FY 2021-2022 budget in the amount of $500,000 to cover the cost of this study.
NOW, THEREFORE, BE IT RESOLVED that the Council of the City of Richmond hereby accepts the Keller Beach Sanitary Sewer CCTV Review and Assessment Report, dated January 3, 2022, (Exhibit A) as presented.
********************
Reso. No. 8-22
I certify that the foregoing resolution was passed and adopted by the City Council of the City of Richmond at a regular meeting thereof held January 18, 2022, by the following vote:
AYES: Councilmembers Bates, Jimenez, Martinez, McLaughlin, Willis, Vice Mayor Johnson Ill, and Mayor Butt.
NOES: None.
ABSTENTIONS: None.
ABSENT: None.
PAMELA CHRISTIAN
CLERK OF THE CITY OF RICHMOND
(SEAL)
Approved:
THOMAS K. BUTT
Mayor
Approved as to form:
DAVE ALESHIRE
Interim City Attorney
State of California
County of Contra Costa
City of Richmond
I certify that the foregoing is a true copy of Resolution No. 8-22, finally passed and adopted by the City Council of the City of Richmond at a regular meeting held on January 18, Pamela Christ:
Pamela Christian, Clerk of the City of Richmond
Reso. No. 8-22
CLERK'S
CERTIFICATE
I, Pamela Christian, City Clerk of the City of Richmond, do hereby certify as follows:
The foregoing resolution is a full, true and correct copy of Resolution No. 8-22 duly adopted at a regular meeting of the City Council of said City duly and regularly held at the regular meeting place thereof on the 18" day of January 2022, of which meeting all the members of said City Council had due notice and at which a majority thereof were present; and that at said meeting said resolution was adopted by the following vote:
AYES: Councilmembers Bates, Jimenez, Martinez, McLaughlin, Willis, Vice Mayor Johnson III, and Mayor Butt.
NOES: None.
ABSTENTIONS: None.
ABSENT: None.
An agenda of said meeting was posted before said meeting at City Hall, 450 Civic Center Plaza in the City of Richmond, California, a location freely accessible to members of the public, and a brief description of said resolution appeared on said agenda.
Such agenda was further posted, and such meeting was conducted in accordance with and pursuant to Assembly Bill 361, issued by the Governor of the State of California or September 15, 2021, that allowed cities to continue to hold public meetings via teleconferencing.
I have carefully compared the foregoing with the original on file and of record in my office, and the foregoing is a full, true and correct copy of the original resolution adopted at said meeting.
Said resolution has not been amended, modified, or rescinded since the date of its adoption and the same is now in full force and effect.
Dated: Jenuary 2.8.2022.
Panela Christ.
City Clerk of the City of Richmond
[SEAL]
Reso. No. 8-22
COASTLAND
CIVIL ENGINEERING - CONSTRUCTION MANAGEMENT - BUILDING DEPARTMENT SERVICES
EXHIBIT A
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.
....
Keller Beach PS
San Francisco
Bay
Marina Way Parkway PS
- PS
. Brickyard Booster PS
Port PS
Santa Rosa | Auburn | Pleasant Hill | Fairfield
www.coastlandcivil.com
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&/ 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.
2:31:48 PM
032.0 г
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
1:36:20 PM S 5/22/2021 12:19:09 31"5
152.8 f
25. 1 20
MH Q-3 to MH Q-4 MH Q-4 to MH Q-5
12:03:26 98 S 150019:02.10 PM S
MH Q-5 to CO Q-6 CO Q-6 to CO Q-8
(MH Q-7 was not constructed)
075/2021
2:57:00 311
U0 13
Haunline chetane:: -109.4 It.
CO Q-8 to MH Q-9
4/5/20212 5:20:10 PH
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
2021 R:50:17 012 S
MH Q-15 to CO Q-16 CO Q-16 to MH Q-17
0. 212038 0:21.2022
MH Q-17 to CO Q-18 CO Q-18 to MH Q-19
4/30.2021 13:22:3430 E:/2021 10: 1D: 12 ARS=S
280.52
SITE CENSUE
MH Q-19 to CO Q-20 CO Q-20 to CO Q-22
12.43:26 PM: 05-01-2021 02:31:18 PM: 05-04-2021
5/04/2024 1:40:07 PM 5/04|2021 3:28:00 PM
185f 2in T 2ft 6in
185 2° 25
CO Q-22 to CO Q-24 CO Q-24 to MH Q-25
(blurry - poor visual)
E1502033 8409-11 09.38.59 AM/ 05-14-2021
5/1402021 9:36:38 AM
203Ft 0in T.
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 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.
Coastland/NCE/City of Richmond
Keller Beach Sewer CCTV Assessment
Table 1. Summary Table of CCTV Inspection Observations
Downstream Upstream Direction Pipe Inspection % of Pipe Pipe Pipe Water Level Condition Interior Pipe Wall Condition Pipe Features Observed General Inspection Notes MH MH of Survey Length Length Inspected Size (in) Material during Inspection Pipe holding full of water; Water
Severe roughness remains after surface pulled down by Start at MH Q-2; Distance indicated on camera was MH Q-1 MH Q-2 DS 393 153 39% descaling efforts, especially on hydronozzle, even so pipe was Did not reach MH Q-1; not accurate; Forward progress in top half of pipe. typically 20-50% full; Moderate No laterals observed camera stopped due to obstruction to severe sags
Pipe holding full of water; Water
Severe roughness remains after surface pulled down by Start at MH Q-3; MH Q-2 MH Q-3 DS 139 139 100% descaling efforts, especially on hydronozzle, even so pipe was Inspection ended at MH Q-2; Complete inspection top half of pipe. typically 20-50% full; Moderate No laterals to severe sags
Pipe holding full of water; Water Start at MH Q-4;
Severe roughness remains after
мн Q-3 MH Q-4 DS 242 descaling efforts, especially on surface pulled down by Inspection ended at MH Q-3; Complete inspection top half of pipe. hydronozzle. Water level 2 laterals observed 5-10% during inspection
Severe roughness remains after Pipe holding full of water; Water Start at MH Q-5; Distance indicated on camera was MH Q-4 MH Q-5 DS 219 descaling efforts. Infiltration surface pulled down by Did not reach MH Q-4; not accurate; Camera stopped due Unknown Unknown
runner observed (at 21:20 hydronozzle. Water level No laterals observed to unknown impediment minutes) 5-10% during inspection
Pipe holding full of water; Water
Start at MH Q-4; Distance indicator working;
Severe roughness remains after surface pulled down by Did not reach MH Q-5; MH Q-4 MH Q-5 US 219 96 descaling efforts, especially top hydronozzle, even so pipe was Inspection abandoned by debris in half of pipe. 6" sewer connected at
typically 5-40% full; Moderate MH Q-4 pipe.
sags
Inspected in reverse. Distance
indicator not working. Poor visual -
MH Q-5 CO Q-6 DS 291 95% Significant/Severe roughness Pipe holing almost fl water Start ceo chit -5; view obscured by pull-rope. No (reverse) remains after descaling efforts. Camera underwater; Severe sags No laterals observed survey from CO-6 for 14.3'.
Inspection abandoned at sharp 30-
degree bend.
co Q-8 Unknown: Pipe wall visible for Start at CO Q-8; Pull back with push camera; (MH Q-7 DS only 11 seconds of video. Severe Pipe full of water during survey: Did not reach Co Q-6; Unusable footage due to equipment CO Q-6 357 Unknown Unknown Camera underwater; Severe sags limitations because of poor access; was not (reverse) roughness remains after No laterals observed descaling efforts. Only visual was 11 seconds on
constructed) partial pipe wall (16:08 - 16:19)
Inspectors unable to plug off
Significant/Severe roughness flows for TV inspection due to Start at MH Q-9; CO Q-8 MH Q-9 DS 182 21.7 12% large line coming in from Did not reach co Q-8; Camera blocked by tuburculated remains after descaling efforts. neighborhood. Pipe at start corrosion at 22' Only 22' of pipe was observed. No laterals observed
flowing 40-50%. Camera
underwater; Severe sags
MH Q-9 MH Q-10 257 0% No CCTV provided
MH Q-10 CO Q-11 166 0% No CCTV provided
CO Q:11 MH Q-12 393 0% No CCTV provided
MH Q-12 MH Q-13 328 0% No CCTV provided
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 Upstream Direction Pipe Inspection % of Pipe Pipe Pipe Interior Pipe Wall Condition Water Level Condition Pipe Features Observed General Inspection Notes MH MH of Survey Length Length Inspected Size (in) Material during Inspection Significant/severe roughness Pipe was empty during Start at MH Q-14; MH Q-13 MH Q-14 DS 261 261 100% 12 observed, expecially top half of inspection. Water surface pulled Intruding lateral at 161.1'; Complete inspection pipe; Grease observed down by hydronozzle. Camera Inspection ended at MH Q-13 underwater
Severe roughness observed, Water level 25-100%; Camera Start at MH Q-15; High-flowing lateral into MH Q-15; MH Q-14 MH Q-15 DS 173 Unknown Unknown expecially top half of pipe; Deep Did not reach MH Q-14; Visual poor due to high water level sags present throughout pipe underwater; Severe sags
DS Severe roughness observed, Water level 15-50%; Moderate to Start at CO Q-16; Camera blocked by tuburculated MH Q-15 CO Q-16 252 45 18% 10 Did not reach MH Q-15
especially top half of pipe. severe sags corrosion at 45' Inspectors unable to drawdown No visual due to high water; Unknown: water due to reverse setup; Start at MH Q-15; Inspection abandoned at 15'; Could MH Q-15 CO Q-16 US 252 15 6% 10 not drawdown water due to poor No pipe visual Camera underwater 0-15+; Did not reach Co Q-16; Severe sag access conditions from Co;
Start at MH Q-17;
MH Q-17 Significant/Severe roughness Water level 5-50%; Moderate to Lateral at 188.1; Good pipe visual; Difficulty passing CO Q-16 DS 207 208 10 observed severe sags Bend at 206; bend in pipe Ended at CO Q-16
Pipe visual is poor; Where pipe is Start at MH Q-17; Poor pipe visual; rapid/shaky clear, pipe appears to be fully Water level 5-100% footage; only one side of pipe in CO Q-18 DS 246 Push cam to CO Q-18;
MH Q-17 246 100% descaled. Evidence of significant Severe sags (camera underwater) Pull back with hydronozzle; view; no stills to inspect pipe (reverse) pipe corrosion, especially top half last third of pipe up to MH Q-17 condition; distance meter not Ended at CO Q-18
working
Pipe holds water, may be due to Start at MH Q-19;
US Pipe walls are fully descaled after sags. Water level 10-20% in Push cam to CO Q-18; Pipe inspected in reverse. MH Q-19 CO Q-18 MH Q-19 185 185 100% Pull back with hydronozzle; appears to be possible source of 1/l (reverse) cleaning. Rough wall surface. 2 laterals observed; and should be inspected.
Ended at MH Q-19
Start at CO Q-20;
Push cam to MH Q-19; Push cam operated in reverse. Poor MH Q-19 CO Q-20 DS 201 201 Pipe walls are fully descaled after Water level 5-100% Pull back with hydronozzle; visual: rapid/shaky footage; no stills cleaning. Rough wall surface. Severe sags (camera underwater) 1 lateral observed at 5'; to inspect wall condition Ended at CO Q-20
Rough wall surface. Pipe walls Low water level in most of Start at CO Q-22; Push cam operated in reverse. Poor CO Q-20 CO Q-22 US 273 273 100% are fully descaled after cleaning. reverse footage due to Ended at CO Q-20; visual: rapid/shaky footage; no stills (reverse) Poor visual (blurry and rapid hydronozzle. Severe sags; Camera Pull back with hydronozzle; to inspect wall condition underwater 206'-226 Ended at CO Q-22.
Very poor visual (blurry and Start at CO Q-24; Push cam operated in reverse. Poor CO Q-22 CO Q-24 DS 344 344 100% rapid. Rough wall surface. Pipe Low water level in footage due to walls appear to be fully descaled hydronozzle. visual: rapid/shaky footage; no stills (reverse) to inspect wall condition
after cleaning.
Rough wall surface. Pipe walls Push cam operated in reverse. Poor are fully descaled after cleaning. Start at MH Q-25; visual: rapid/shaky footage; no stills CO Q-24 MH Q-25 DS 307 274 89% Water level 5-25% 2 laterals observed; to inspect wall condition; complete Poor visual (blurry and rapid Did not reach Co Q-24
return footage) inspection (including US footage)
11/17/2021 3:52 PM Page 2 of 3
Coastland/NCE/City of Richmond
Keller Beach Sewer CCTV Assessment
Table 1. Summary Table of CCTV Inspection Observations
Downstream Upstream Direction Inspection % of Pipe Pipe Interior Pipe Wall Condition Water Level Condition Pipe Features Observed General Inspection Notes of Survey Length Length Inspected Size (in) Material during Inspection Rough wall surface. Pipe walls Start at CO Q-24; Push cam operated in reverse. Poor 1 lateral observed (overlapping visual: rapid/shaky footage; no stills CO Q-24 MH Q-25 US 307 70 23% are fully descaled after cleaning. Water level 5-10% DS inspection); to inspect wall condition; complete
Poor visual (rapid footage) Did not reach MH Q-25 inspection (including DS footage) 11/17/20213:52 PM Page 3 of 3
APPENDIX A:
EXPRESS SEWER NOTES AND EXHIBIT
[C
City of Richmond
Keller Beach Sewer Video Notes
Start Node End Node Distance Notes
Left Tap @ 78.8
Left Tap @ 210.3'
MH4 MH3 237.0 Clear visual
MH 3 MH2 137.0 Pipe holding full pipe water, used Vaccon to pull water down for TV inspection MH 2 MH1 393.0 Pipe holding full pipe water, used Vaccon to pull water down for TV inspection MH5 MH4 233.0 Part 1
MH4 MH5 96.0 Part 2
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 320.0 There is still an unclear visual from CO 6 up to 14.3' CO 6 MH5
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).
CO 8 C06 357.0 Operator wheeled rolled distance from CO 8 to CO 6. 357' 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.
MH9 CO 8 21.7 Line is incomplete
Pipe is in fair condition, some areas of moderate to severe scaling. Left Tap @ 188.1' 145 bend in pipe 3' from CO 16
MH 17 CO 16 208.0
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
CO 16 MH 15 Part 1
Belly from 0.0' - 15.3
Unable to Camera due to line holding water and reverse setup MH 15 CO 16 Did not meet up, line is incomplete Part 2
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' MH 19 CO 18 Clear visual from pull back
Inable 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. are sections in the video that have clear and not clear visual.
Operator made it to MH 17. Footage distance shows 0.0 throughout due to process.
CO 18 Operator verifies footage with wheel roller.
MH 17 246.0
CO 20 MH 19 201.0 (nate to access with main line camera, unable to push with push camera, operator had to CO 22 CO 20 275.0
CO 24 co 22 344.0
ente a with wherer.
No clear visual from 0'0" - 13'0"
MH 25 CO 24 274.0 (overtape vitespection +2, confirmed by locating. Part 1 CO 24 MH 25 70.0 Overlapped with inspection #1, confirmed by locating Part 2 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 15 MH 14 162.0
Left Tap @ 161.2
Clear Visual
MH 14 MH 13 260.0 Segment of belly @ 232.0' - 242.4
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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/ Comment Image
Position
нала
0.0 AMH 0-2
>50%
MWL Only top of pipe
visible
Severe internal
0.5 corrosion
Severe internal
16.2 corrosion
20%
16.2 MWL Severe internal
corrosion
cam in pipe view
16.2 MGO 17m44s, mostly under
water
1OECU 0-5:
16.2 MWL 20% with vac wash
16.2 unk, possible tap?
MGP (18:32)
16.2 SCP 08-03 |S01 (18:34)
16.2 MGP 09 Lunk, unsure if void
(18:41)
MCU cam tilted & aimed to
43.5 soffit right after
64.0 MCU Camera underwater
66.4 MGO cam stationary 26m to
40m,
cam in motion but
77.1 MGO
choppy video
131.2 MWL 35%
131.2 cam stationary,
MGO
difficulty moving
no forward progress
152.8 OBZ 03-09 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: Cl
Upstream MH: MH Q-3 Pipe Diameter: 12"
Downstream MH: MH Q-2 Direction of Video: Downstream
Code Clock/Positi
Distance (feet) Comment Image
on
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%, 504
130.8 MGO cam rotated 90 degrees
MGO equip issue, cam has no
132.1
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:
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
Minutesovideo
because distance AMH Q-5
indicator was not
working
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
no progress, would eventually
47:33 to end MGO-MSA 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 0-4:
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
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: c0 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
0.0 501 Camera underwater (no image)
319.8 F01 Camera underwater (no image)
319.8 At MH Q-6
camera on grade, in reverse
319.8 MGO (pulled); distance remains
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)
camera stopped, 14.3°
34:03 MGO
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
Total Length: Unknown distance out of 357'
Date orcet: 15-5226 CI
16+52.06 Material:
Ipstream M co Q-8 Pipe Diameter: 12"
wnstream M co Q-s Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image
0.00 ACO At CO Q-8
16:08 - 16:19 per survey, 6
MGP seconds:
0.00 MSA Ino 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 surence, distance
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
Ipstream M MH Q-14 Pipe Diameter: 12"
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, MWI. to 5%
0.0 SRI 09-03 501
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 10 502
109.4 SSS F02
109.4 SCP 07-05 at joint
111.3 SSS 11-01
116.1 SSS
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 Hor 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:
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 0-15
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
poor visibility, multiple
blackouts/MCU thorughout
MGO-MSA
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 MWI 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
Abandoned, equipment
45.3 MSA 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:
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
MGP cam mostly submerged,
148.1 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
MGO cam stationary for minutes,
203.0 Difficulty passing bend in pipe
no forward progress
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:
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
footage out of focus, appears
0.0 MGO to be pushing cam on
grade/invert; distance
emains 0.0' throughou
At MH Q-17 per survey note;
cam on grade (not
06:51 MGP-AMH 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
ACO At co Q-18, end of reverse
14:05 footage
CCTV Observation Report
Client: NCE/City of Richmond
Project Name: Keller Beach Sewer CCTV Assessment
Date oSce: 42268.034 Total Length: 185 - complete inspection 42+68.13 Material: CI
Jpstream Mi MH Q-19 Pipe Diameter: 10"
ownstream MI 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 09 4" lat
134.6 OBZ 03-09 50% blocked, chain flailed
140.7 MGO blackout, no activity 10:35-
42:00
42:00 resumed, dist from
94.8 MGP 140.7, may have been
retrieved
119.1 MGO turbulent footage (14:39)
124.9 MCU (146:07) Camera underwater (no image)
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:
Upstream MH MH Q-19 Pipe Diameter: 10"
Direction of Video: Upstream (Push camera with hydronozzle in reverse) Distance (feet) Code Clock/Position Comment Image
cam tilted 90d
131.5 MGO counterclockwise
132.7 MCU Camera underwater (no image)
156.5 MGO blacked out approx 5min
cam too close to cleaning
159.7 MGO
173.4 MGO-MCU to 1:44:05)
173.7 MGO rbulent footage, cam ve
ose to cleaning equ
189.2 ACO Q-18
MGO reverse survey, no new
189.2 findings
0.0 AMH Q-19
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
33:02 PH
0.00 ACO At CO Q-20
0.00 MWI
12'11" DAGS 03-06 at joint maybe
16'0" MGO cam unsteady
73'10" MCU Camera underwater (no image)
12:00.70 PM v03 059001
B/SHIRES
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
S8522 330
154'5" MGO turbulent, cam unsteady
5'3" TB 10 not panned, no other info
Bse
MGP
- 0'5" MGP
-0'5" ACO 0-20
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:
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'O" ACO Q-22; turbulent & very poor
visibility throughout
2'6" MWL 20%
2'6i TF 09 not panned, other info
280120370
B99619063
8'9" DAZ 04-08 S01
197'4" MGO no visibility 04:41 to 06:16
Q-20, start of backwards
275'0" ACO
survey
273'7' MCU Camera underwater (no image)
poor visibility throughout,
262'7" MGO 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 cam on grade (no
centered/elevated); blurred
17:05 MGP-ACO out of focus; footage by video
imestamp, 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%
am out of focus, poor vide
18:59 MGO quality, unable to revie
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:
Downstream MH: co Q-24 Direction of Video: Upstream
Distance (feet) Code Clock/Position Comment Image
0.0 ACO Q-24
55 35 40
2'1" MGP Start of survey
push cam very unsteady; poor
2'1" MGO image quality; splashback at
forward motion, frequent
MCU
3'9" MWS 30%
130144005087027
DISSERTE 9-56-55 .u
57'9" DZ or RBB 03-05
58'9 T 03 no other info
67'5' T 03 no other info
67 l Oin" BOSORALES S.S7 C8 AU
CATAR T0ST120
• 57.23 AU
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:
Upstream MH: MH Q-25 Pipe Diameter: 8"
Downstream MH: CO Q-24 Direction of Video: Downstream
Distance (feet) Code Clock/Position Comment Image
B3S6/202
Ơ'O" AMH 0-25
1'3" MCU-MGO turbulent, poor visibility
8.59:06 AL
15'4" MWL) 5%
8-59:35 AU
25'8" 55S 11-05 at joint
36'1" MGO cam aimed at 3 o'cl barrel
Z/SAREOES
62'10" SCP 02-04
9:01-03 22
78'6" MGP debris
Sn da r
gisaise
203' 0" MGP in reverse, general condition
2xa dn
3780305520
59S0r00N
257'10" MGP lin reverse, general condition
274'0" 11:13, will continue from Co
MSA Q-24 per survey