Loading...
HomeMy Public PortalAbout2021 January - A Report on the Evaluation of the Citys Sanitary Sewers of Concern - Phase 2 A Report on the Evaluation of the City’s Sanitary Sewers of Concern - PHASE 2 City of Riverdale Scott County, Iowa January 2021 City of Riverdale 110 Manor Drive Riverdale, Iowa Phone Number: (563) 355-2511 Project Number 10876066 Prepared by: Christian R. Cooper, P.E., CPESC Percy Do, EIT MSA Professional Services, Inc. 2117 State Street, Suite 200 Bettendorf, IA 52722 Phone: (563) 424-3696 www.msa-ps.com SEAL I hereby certify that this engineering document was prepared by me or under my direct personal supervision and that I am a duly licensed Professional Engineer under the laws of the State of Iowa. ___________________________________________________ Engineer Christian R. Cooper, P.E., CPESC. License Number: P23729 My license renewal date is December 31, 2021 Pages or sheets covered by this seal: All TABLE OF CONTENTS Item Page EXECUTIVE SUMMARY ........................................................................................................... i 1.0 INTRODUCTION ........................................................................................................... 1 1.1. Study Location ......................................................................................................... 1 1.2. Purpose and Scope ................................................................................................. 1 1.3. Pipe Material Properties and Historical Performance ............................................... 2 2.0 SANITARY SEWER SYSTEM INSPECTIONS .............................................................. 4 2.1 Sanitary Manhole Observations and Evaluations ..................................................... 4 2.2 Sanitary Sewer Televising ....................................................................................... 6 3.0 RECOMMENDATIONS AND OPINIONS OF PROBABLE COST .................................. 9 3.1 Recommendations ................................................................................................... 9 3.1.1 Rehabilitation by CIPP (Cured-In-Place-Pipe) Lining .................................... 9 3.1.2 Reaming of Deposits .................................................................................. 10 3.1.3 Type 1 Manhole Repair .............................................................................. 10 3.1.4 Removal of Root Intrusions from Sanitary Sewer ....................................... 10 3.2 Opinion of Probable Costs ..................................................................................... 11 LIST OF EXHIBITS Exhibit 1 – Sanitary Sewer Priority Rating Map .......................................................................... iii LIST OF TABLES Table 2-1 – Televising and Manhole Inspection Summary .......................................................... 7 Table 2-2 – Sewer Evaluation Key .............................................................................................. 8 Table 2-3 – Pipe and Appurtenance Rating Summary................................................................. 8 LIST OF FIGURES Figure 1 – Project Location ......................................................................................................... 5 LIST OF APPENDICES APPENDIX A IDNR Administrative Consent Order APPENDIX B MSA Manhole Inspections APPENDIX C Visu-Sewer Televising Summary Report APPENDIX D Engineer’s Opinion of Probable Project Costs For Rehabilitation Projects i EXECUTIVE SUMMARY Basis for Sanitary Sewer System Evaluation: This study was initiated by the request of the City of Riverdale. The request was made for the purpose of evaluating the condition of their sanitary sewer system. This evaluation is the second of a programmed probable three-year effort to ascertain the condition of the City’s sanitary sewer collection and conveyance system. For the purposes of prioritizing the findings and preparing the recommendations, MSA referred to the March 14, 2013 Administrative Consent Order from the Iowa Department of Natural Resources (IDNR) to the Davenport Waste Water Treatment Plant. As a 28E participant in the performance of the Davenport Waste Water Treatment Plant, the City of Riverdale is held accountable to reduce inflow and infiltration. Based on this, possible projects are prioritized to first reduce inflow and infiltration and then to address issues that could likely degrade into significant issues within the next five years. The aforementioned 28E intergovernmental agreement, dated January 5, 1974, provides for the construction and joint use of sanitary sewers and sewage disposal facilities. This agreement is the basis for operating, maintaining, and financing the common plant and system assets. Furthermore, this intergovernmental agreement establishes Davenport, Bettendorf, Riverdale, and Panorama Park as Joint Use Cities. The construction permit for the Davenport Water Pollution Control Plant was issued on March 15, 1974. This plant was designed to receive 40 million gallons per day (MGD) of flow during wet weather. The plant historically receives wet weather flows in volumes that far exceed this design capacity. These excessive flows result in the discharge of untreated wastewater from the collection system. The Administrative Consent Order, between the Joint Use Cities and the IDNR, established a schedule for necessary upgrades to the wastewater collection systems. The intent of the Administrative Consent Order is to eliminate the discharge of untreated wastewater from the collection system. The Administrative Consent Order established July 1, 2018, as the date when all Joint Use Cities shall undertake the study and actions to remove inflow and infiltration sources from the Interceptor Sewers. ii Evaluation Methods: On February 25, 2020, the City of Riverdale entered into an agreement with MSA Professional Services, Inc. (MSA) to evaluate portions their sanitary sewer system within the City limits. This specific evaluation is intended to evaluate the conditions of the sanitary sewer collection and conveyance system for most of the sanitary sewers that are not located adjacent to a roadway. Because special equipment is required to convey the televising and cleaning equipment, the City of Riverdale elected to evaluate these “off-road” sewers in one season in order to avoid multiple years of contracting with purveyors of off-road televising and cleaning equipment. As part of this agreement, televising was arranged for certain sanitary sewers. Competitive bids were sought for the off-road sanitary sewers televising from CIT Sewer Solutions and Visu-Sewer. At the time of seeking bids, these two companies were the only two companies within the Region that were capable of providing significant off-road televising ability. Visu-Sewer provided the low bid of $31,788.90 to televise about 9633 lineal feet of sanitary sewer. In addition, in order create access to the off-road sanitary manholes, the City contracted with McClintock Trucking and Excavating for the amount of $6,800.00 to clear away plant / tree growth and debris from the manholes located adjacent to Fieldcrest Creek. In 2019, MSA cleared away plant growth and debris from the sanitary manholes located adjacent to the tributary to Crow Creek that flows through the Scott Community College lands. The plant growth and debris accumulation along this creek was significantly less than that adjacent to Fieldcrest Creek. Finally, McClure Engineering Company was selected by the City of Bettendorf to smoke test, among other sewers, the main trunk sewer that parallels State Street. In order to take advantage of potential cost savings, the City of Riverdale contracted with McClure Engineering Company to smoke test the portion of the trunk sewer that runs through the City of Riverdale for the cost of $5,624.00. As was expected for a sanitary sewer system that is over 50 years old, the results of the sanitary sewer investigation effort (televising and visual manhole inspections by MSA) indicate that the City’s sanitary sewer system has many defects. As previously indicated, MSA’s recommendations are prioritized to first eliminate known areas of inflow and infiltration. The secondary objective is to repair any issue that, if left unmitigated, could lead to serious issues within the next five years. Such secondary issues include breaks or failures in the pipe structure and removing significant root intrusion and root growth. In addition, in this phase, there are many manhole issues. Because water readily enters the manholes through misaligned lids, leaking chimney joints, and manhole lids that are buried, MSA treats the prioritization of manhole issues with the same priority as removing inflow and infiltration issues in the sanitary sewer pipes. Most of the observed issues with the manholes are the result of years of surface traffic shifting the manhole frame, grate, and chimney rings so that surface flows and earth readily enter the City’s off-road sanitary sewer systems. The result of MSA’s investigation, evaluations, and subsequent rating effort is summarized in the following Exhibit 1 - Sanitary Sewer Priority Rating Map. The intent of this maps is to establish a readily visible method for the City of Riverdale to prioritize sanitary sewer system concerns. SAN SAN SAN SAN SA N SAN SAN SAN SAN SAN SAN SAN SAN SAN SAN SAN SA N SA N SAN SA N SAN SA N SA N SA N SA N SAN SA N SA N SA N SA N SA N SA N SA N SA N SA N SA N SA N SA N SA N 1 OF 1 EXHIBIT 1 - SANITARY SEWER PRIORITY RATING MAP 10876066 SCOTT COUNTY, IOWA CITY OF RIVERDALE SANITARY SEWER EVALUATION PLOT DATE: NO.DATE REVISION BY SHEET ... ... ... . . . 0 200 400100 © MSA Professional Services, Inc. www.msa-ps.com ENGINEERING | ARCHITECTURE | SURVEYING FUNDING | PLANNING | ENVIRONMENTAL Monday, January 11, 2021 2:31:07 PM, G:\10\10876\10876066\CADD\Construction Documents\10876066 Priority Rating Map.dwg PROJECT NO. PDO CRC . DESIGNED BY: PROJECT DATE:DRAWN BY: CRCCHECKED BY:.(563) 445-3501 2117 State Street, Bettendorf IA 52722 0 200 400100E4-12 E4-12A E4-11A E4-11 E4-10 E4-9 E4-8 E4-7 E4-6 E4-5A E4-5 E4-4A E4-4 E4-3 E4-2 E4-1 E1-4 MH-70 MH-68 MH-69 MH-67A MH-67 E7-13A E7-13 X-2 X-3 X-4 X-5 X-6 E7-12 E7-11 E7-10 E7-9 E7-8 E7-7 E6-7 E7-5 E7-4 E7-3A E7-3B X-7 BELMON T R D BELMONT RD CO L L E G E D R COLL E G E D R ST A T E S T CIRC L E D R FIE L D C R E S T R D iii 1 1.0 – INTRODUCTION 1.1 Study Location The City of Riverdale is located in Scott County, Iowa. Scott County is centrally located in eastern Iowa. The city of Riverdale is located on the Iowa side of the Quad Cities area (Rock Island, IL; Moline, IL; Bettendorf, IA; and Davenport, IA). The population of Riverdale based on the 2010 census data is about 405 people. The City of Riverdale owns the sanitary sewers that serve their own residents. In addition, sewage from City of Bettendorf residents and Arconic is conveyed through the City of Riverdale’s sanitary sewers. The City of Riverdale requested their off-road sanitary sewers be evaluated. This includes the sanitary sewers that collect and convey sanitary sewage through the woods adjacent to the Scott Community College campus and adjacent to Fieldcrest Creek. Visu -Sewer televised all such sanitary sewers within the City. 1.2 Purpose and Scope This study was initiated by the request of the City of Riverdale and is the second year of a probable three-year evaluation effort. Their request was made for the purpose of evaluating the condition of their off-road sanitary sewers. For the purposes of prioritizing the findings and preparing the recommendations, MSA referred to the March 14, 2013 Administrative Consent Order from the Iowa Department of Natural Resources to the Davenport Waste Water Treatment Plant. This document is located in Appendix A. As a 28E participant in the performance of the Davenport Waste Water Treatment Plant, the City of Riverdale is held accountable to reduce inflow and infiltration. Based on this, possible projects are prioritized to first reduce inflow and infiltration and then to address issues that could likely degrade into significant issues within the next five years. On January 5, 1974, the cities of Davenport, IA; Bettendorf, IA; Riverdale, IA; and Panorama Park, IA entered into an intergovernmental agreement providing for the joint use of sanitary sewers and sewage disposal facilities. The Davenport, IA wastewater plant has historically received sewage flow rates and volumes far exceeding the plant’s design capacity. MSA proceeded with this sanitary sewer evaluation effort to identify sources of inflow and infiltration as well as determine deficiencies within the City’s sanitary sewer collection and conveyance system. This was accomplished by televising the sanitary sewers, smoke testing the trunk sewer line, and visual inspection of all the manholes. As a result of these investigations, noted inflow and infiltration sources as well as other sewer deficiencies were located. Recommendations to reduce the inflow and infiltration and correct other issues are included as part of this report. 2 The effort to complete this report included the following tasks performed by MSA: · Identify and, if possible, locate all locations of sanitary sewer manholes. · Remove the lid from every found manhole to evaluate the condition of the manhole and the nature of the flow through the manhole. · Review the Visu-Sewer televising report of all the televised sanitary sewers. · Review the smoke testing report submitted by McClure Engineering Company. · Prepare a list of observed sources of inflow and infiltration, as well as other sanitary sewer deficiencies, and prioritize this list. · Provide opinions of probable construction cost to the City of Riverdale to mitigate these deficiencies. 1.3 Pipe Material Properties and Historical Performance The material used to construct most of the sanitary sewer in the areas of this study is vitrified clay pipe (VCP). The observed VCP segments tend to be very short. Thus, there are many pipe-to- pipe joints. Vitrified clay pipe is an excellent material for sanitary sewage. For the most part, it is inert and will not react with chemicals and waste conveyed by the pipe. In addition, it is not affected by corrosive or polluted soils. Vitrified clay pipe is a strong material and can be readily molded into many shapes. The interior of the pipe itself is low in friction. However, the pipe is susceptible to impact forces, and it will readily crack when subjected to impact and tensile forces. It has very poor resiliency characteristics. If deformed, it will break and generally not return to shape. When dropped or struck, there is a good potential for the pipe material to crack. Long segments of vitrified clay pipe are generally not feasible because the installation of the pipe will introduce tensile forces during the pick-up and placing of the pipe. Subsequently, the pipe could crack due to uneven support of the pipe during placement. Finally, the pipe is a relatively heavy material. For an 8-inch diameter pipe section, the pipe will weigh about 17 pounds per foot. Comparatively, PVC (i.e. plastic) pipe material weighs 5 or 6 pounds per foot. Historically, it took a long time for the development of an effective pipe joint for vitrified clay pipe. This is because, in the past, sanitary sewers discharged directly to a water body without treatment. Thus, inflow at the joints was encouraged to assist in keeping the pipe clean. Just prior to World War II, the development of a good pipe-to-pipe joint became a concern. The first joint material was oakum. Oakum is a fibrous material, usually made from hemp, which is coated with bituminous material. Installation is done by packing the oakum into pipe joints. Unfortunately, while an excellent craftsman could make an excellent joint, many sanitary sewers were not constructed by a craftsman. Furthermore, oakum joints did not allow for pipe movement. Thus, the concern was to find a better jointing system. The next step in the evolution of pipe joints was poured mastic joints. Poured joints are effective at preventing initial inflow. However, with age and pipe movement during backfilling and long-term settling, the joint will likely fail. The next evolution of joints was a tubular joint seal. This was made by a hollow rubber tube that is pumped with grout under pressure to seal the pipe-to-pipe joint. Based on readily visible evidence in the report summary of the videos, this appears to be the type of joint that is utilized in most of the Riverdale sanitary sewers. It was not until the establishment of an ASTM test (C425) in 1958 that an elastomeric gasket for clay pipe was developed. 3 A failed pipe joint allows for the inflow of ground water, the intrusion of plant roots, the slow but inevitable loss of soil surrounding the pipe, poor flow characteristics at the pipe section transition, and the creation of catching points for debris that is flowing within the sewage. Some of the other pipe material noted in this portion of the Riverdale sanitary sewers that were evaluated included PVC and ductile iron/cast iron pipe (DIP / CIP). DIP / CIP is a very strong pipe. It can be constructed in relatively long sections and has good interior flow properties, offers some resiliency due to loading, and has good to excellent impact resistance. In general, DIP/CIP is an excellent pipe material. The expected life of CIP that is used for sanitary sewage is in the realm of 75 to 100 years. If properly treated, DIP also has a life expectancy of about 75 to 100 years. DIP / CIP does not fail by rusting. Instead, a layer of rust does eventually form a protective coating for the pipe. However, corrosive (acidic) waste will corrode DIP / CIP rapidly. DIP / CIP) is a rigid pipe. It can withstand significant impact. When the impact is destructive, it is possible the pipe will either bend the metal or the pipe material will crack. If cast iron pipe is shallow, or excavation is performed near it, it is quite possible the pipe will be flex or bend or crack. When the pipe is deformed, the joints lose symmetry and leaks will develop. As with all older pipes, the gasket used for joining materials has significantly improved in recent times. During the early years of CIP use, the joints were often cast with poured lead, or rubber gaskets were used that aged relatively quickly compared to today’s much longer lasting gaskets. Thus, the joint in old CIP often fail with time. DIP / CIP are relatively heavy compared to PVC pipe. An 8-inch diameter DIP will likely weigh about 22 pounds per foot. These days DIP / CIP are installed utilizing modern day construction equipment. Therefore, with the use of machines, the installation of these pipes in sewers is normally not a major issue. The installation limitation is that every time a pipe segment has to be moved, lowered into the trench, and correct jointed to the adjacent pipe segments, it requires powered construction equipment. Finally, CIP develops significant scaling. While this is not an issue that necessarily affects pipe strength and longevity, it does affect the flow capacity and flow rates. 4 2.0 - SANITARY SEWER SYSTEM INSPECTIONS An investigation of the sanitary sewer collection system was performed by MSA with the assistance of Visu-Sewer and McClure Engineering Company. 2.1 Sanitary Manhole Observations and Evaluations Observations of all the City’s sanitary manholes were made by MSA in 2020 on May 6, May 7, May 13, May 19, May 21, and June 12. An additional manhole inspection was performed on January 12, 2021 after its buried location was determined with assistance from the Visu-Sewer televising reports. Observations included looking for buried/covered structures, offset frames and lids, leaking barrel joints, obstructed inverts, and degraded interior concrete. Photographs of the manhole interiors and frames and lids were taken and cataloged as part of the sanitary sewer system assessment. The forms for these inspection records are located in Appendix B. Dye testing and smoke testing are additional methods of testing that were not included as part of this phase of the sanitary sewer system evaluation. Smoke testing consists of placing a blower (i.e. fan) on top of a manhole, thus forcing smoke through the sanitary sewer pipes. Observations of smoke emissions in the test areas can indicate illegal connections to the sanitary sewer system as well as manhole chimneys that are severely degraded. This test is more applicable when there are several connections to the sewer system that do not occur at the manhole locations. Dye testing can also confirm whether there are connections from a home waste/vent piping system to the sanitary sewer system. Dye testing is performed by adding fluorescent dyes to the source of waste water and then looking for fluorescent presence in the effluent flow through downstream manholes. PROJECT LOCATION PROJECT LOCATION SCOTT COMMUNITY COLLEGE PLEASANT VALLEY HIGH SCHOOL FIELDCREST CREEK TRUNK SEWER LINE SMOKE TESTED BY MCCLURE ENGINEERING FIGURE NO. 1 - PROJECT LOCATION 5 6 2.2 Sanitary Sewer Televising Televising was conducted by Visu-Sewer on multiple days in 2020 during July and August. In addition, at the request of MSA, a few storm sewer pipe runs were televised along College Drive. The televising videos revealed many defects in the sanitary sewers. The deficiencies include fractures and cracks, broken pipe joint gaskets, mineral deposits in the form of stalactites, and root intrusions. If joints are not properly sealed or if cracks exist, these deficiencies in the pipe can become subject to intrusion by roots and ground water inflow. Several root intrusions and root masses were observed within the sanitary sewer system. If untreated, the intrusion of roots will grow to root masses. Root masses will eventually reduce or block flow of sewage through the pipe. However, given that the sewer pipe runs that were televised were through forested areas and adjacent to area creeks, the condition of the off-road sewer pipes is much better than what was originally anticipated. In the woods and adjacent to the creeks, no inflow was observed in the televised video files. Some root growth was observed. The root growth that was observed was limited to only a few runs of sewer pipe. Given the proximity of so many trees, much worse conditions were anticipated. Many of the sanitary sewer pipe runs between manholes were found to not be at a consistent down gradient slope. Where settling occurred, such that the grade of the pipe to the downstream manhole became positive (flow is uphill), sewage will pond within the pipe. These sags in the pipe runs are often referred to as “a pipe that has a belly.” The presence of a belly in a pipe allows for debris, grit, and sediment to settle out of the flow. This reduces the flow capacity of the pipe, thus hindering the pipe’s ability to convey sewage. Generally, unless the sewer is dug up and re- constructed with a consistent negative slope, it is not possible to solve the problems created by bellies. Consistent and regular pipe cleaning may be called for if an accumulation of solids consistently occurs at pipe bellies. In addition, if the belly is caused by pipe settling due to soil washing in with infiltration, then the pipe joint should be sealed to prevent further soil loss. Very few laterals were observed to be connected to these sanitary sewers. This was as expected. The televised sanitary sewers generally convey sewer waste flow from residential areas or institutions through the forested areas. The sewer waste flow from both Scott Community College and Pleasant Valley High School is sufficient enough to warrant a sewer pipe connection at a manhole versus a sanitary lateral. Dye testing was previously utilized to confirm the connection of Scott Community College to one of these televised sanitary sewer pipe runs. 7 Table 2-1. Televising Summary indicates the number of occurrences of each deficiency found in the sanitary sewer collection system during televising. In addition, a typical recommended action to resolve the deficiency is included in the table. A detailed summary report of all televising findings, including the location of each deficiency, is located in Appendix C. Table 2-1. Televising and Manhole Inspection Summary Type of Deficiency No. of Occurrences Possible Corrective Action Observed Leak 30 Grouting or pipe lining Faulting (Offset / Gap) at Pipe Joint 0 Point Repair / Defective Pipe Replacement, CIPP Lining Fractures / Cracks 3 CIPP Lining Sag in Pipe Alignment 57 Pipe lining if significant Broken Joint Gasket / Sealing Ring (i.e. Broken or Unattached) 0 Point repairs, joint grouting, CIPP Lining Minor Root Intrusion 24 Clean / Cut out large blockages, chemical attack on roots, CIPP Lining Major Root Intrusion 6 Clean / Cut out large blockages, chemical attack on roots, CIPP Lining Root Mass / Blockage 0 Clean / Cut out large blockages, chemical attack on roots, CIPP Lining Other (i.e. Encrustation, Sludge/Debris Buildup, Grit, & Rocks) 18 Ream Deposits. Regular pipe cleaning Manhole Casting Not Sealed 12 Replace manhole casting Casting Displacement 11 Replace or reset manhole frame and lid Casting Buried 3 Replace or reset manhole frame and lid Pipe Collapse 0 Excavate and replace Major Manhole Infiltration 2 Grouting joints 8 For this study, a pipe run is defined as the sanitary sewer from an upstream manhole to the nearest downstream manhole. A total of 36 pipe runs were evaluated by televising. In order to effectively evaluate the condition and priority of each pipe run in regards to sanitary sewer deficiencies, a ranking system was developed. This ranking system evaluates each pipe run on a scale of 1-5. Table 2-2. Sewer Evaluation Key shows the basis for scoring sewer deficiencies. A summary of this scoring for each run of sewer pipe is shown in Table 2-3. Pipe and Appurtenance Rating Summary. Table 2-2. Sewer Evaluation Key Ranking No. Summary of Infiltration Observations Recommended Remedial Action 1 No infiltration observed, no pipe defects observed None required, monitor in future 2 No infiltration observed, some defects observed Lining of sewer might be considered when associated roadway is reconstructed or budget allows 3 No infiltration observed, multiple pipe defects, root intrusion, poor manhole condition Sanitary remedial repairs to be programmed to be addressed in the not-to-distant future 4 No infiltration observed, points of buckling, dirt intrusion, and multiple pipe defects Sanitary remedial repairs to be budgeted and planned for now or the very near future 5 Observed infiltration Sanitary remedial repairs to be an immediate priority in budgeting and planning Table 2-3. Pipe and Appurtenance Rating Summary Rating No. Amount 1 14 2 11 3 4 4 2 5 5 The pipe runs that have been rated a “5” are of the highest priority when recommending remedial action to the noted sanitary sewer deficiencies. 9 3.0 - RECOMMENDATIONS & OPINIONS OF PROBABLE COSTS 3.1 Recommendations After identifying sewer main and manhole deficiencies, the following possible remedial actions are presented as efforts to improve the performance of the sanitary sewer system, prolong the life of the sanitary sewer system, and, most importantly, decrease the amount of inflow and infiltration into the sanitary sewer system. 3.1.1 Rehabilitation by CIPP (Cured-in-Place Pipe) Lining In cases of infiltration occurring at many pipe joints and significant intrusion of roots, lining the existing sanitary sewer pipe will eliminate infiltration and prolong the life of that run of sanitary sewer. There are five runs of sewer pipe that had observed infiltration occurring. Of these instances of observed infiltration all five will benefit immediately from the construction of a cured- in-place pipe lining. The suggested lining totals about 1,188 lineal feet of 8-inch sanitary sewer pipe. In addition, there are two runs of sewer pipe that have significant root intrusion and sag locations at pipe joints. Though ground water was not observed entering these sewer pipes, the observed evidence indicates that the pipe joints allow sewage waste water to flow into and out of the pipe. Furthermore, the observed root intrusions threaten not only to ultimately reduce the conveyance capacity or block the flow of sewer, but they also further compromise the joints between the sewer pipes. The length of the sewer pipes with these issues is 611 lineal feet. These reflect all the sewer pipes with a condition rating of 4 or worse. The sanitary sewer runs that are recommended to have a constructed cured-in-place pipe lining are as follows: · MH X-2 to MH X-3 · MH X-3 to MH X-4 · MH X-4 to MH X-5 · MH X-5 to MH X-6 · MH X-6 to MH E7-12 · MH 69 to MH 68 · MH E7-11 to MH E7-10 If there is observed inflow, in order to properly cure the new lining, the inflow will likely have to be stopped in order to prevent the flow from washing away the resin in the liner before it has cured. Therefore, locations of significant inflow will likely have to be grouted in order to stop inflow. Grouting is a very localized fix. And most often, grouting one location of inflow, pushes the problem to a different location. Therefore, it is the opinion of MSA that grouting a joint is a temporary fix for inflow for a run od sewer pipe. Therefore, MSA is a proponent of CIPP lining to terminate inflow issues.. 10 3.1.2 Reaming of Deposits It was observed that most of the sanitary sewer leaks are also associated with an accumulation of mineral deposits in the form of stalactites inside the sanitary sewer. Before the sewer can be lined, these will have to be removed. Because the mineral deposits were not removed during the normal sewer cleaning process utilized to televise these sewer lines, MSA assumes that the removal of these mineral accumulations will require additional reaming or grinding. 3.1.3 Type 1 Manhole Repair There are several manholes in which the frame and lid have been knocked out of an appropriate alignment with the manhole barrel and conical section. This has created significant openings at the top of the manhole that allow the entry of debris, and flowing water. In addition, there are some manholes that are buried and need to have the grate and lid elevations readjusted so that are at or above grade. The number of manholes requiring this removal and reconstruction of the frame and grate to prevent inflow is significant. Most of the manholes that require this rehabilitative effort already have standardized frames and lids. Therefore, MSA does not feel it is necessary to replace the frame and lids for each correction. Removal, cleaning, and re- installation should be sufficient. A, a Type 1 Manhole repair involves removing the existing frame, cleaning the existing bottom of the frame and top of the matching concrete surface, applying a mastic seal around the seat area of the frame, resetting the frame, constructing an exterior seal around the readjusted manhole chimney, backfilling, and seeding disturbed areas. MSA has identified the need for this work as immediate. Thus, the manholes are identified as a condition rating 5. 3.1.4 Removal of Root Intrusions from Sanitary Sewer In reviewing the videos, MSA noted several root intrusions. While the observed growth of the root intrusion does not yet appear to threaten to block flows, if ignored, they could likely block flows in the near future. In addition, the root intrusions do reduce flow capacity within the sewer pipe. Finally, as the root intrusions grow, they will widen the crack or joint that it has used to access the nutrient rich sewage. The widening crack or joint will be a location where sewage flows will be able to wash out of and back into the sanitary sewer. This will remove supporting earth backfill as well as allow for earth to enter the sanitary sewer. Where the number of and size of root intrusions is significant, MSA recommends these be treated with the immediate work rather than delaying the work to the near future. Roots that are removed will grow back and usually grow back stronger. Options include treating the area on the outside of the pipe to kill the root, constructing a grout seal for the joint, or lining the pipe. Grout sealing or killing the root are not effective at permanently preventing the root from growing back. In time, the root will find its way back. External excavation of the pipe can guarantee that the root will not return. However, this is extremely disruptive and expensive. Constructing a cured in place pipe lining provides the least disruption and best assurance that the root will not grow back. 11 3.2 Opinion of Probable Costs MSA assumes that the City of Riverdale will continue with their multi-year program to address the rehabilitation of their sanitary sewer system. Thus, the issues that likely require immediate attention this year will also be addressed this year. Therefore, for this phase MSA prepared opinions of probable project cost to address those pipe runs and manholes that were rated a condition 5 and those that were rated a condition 4. The primary intent of recommended remedial actions, for which MSA has prepared their opinion of the probable project cost, is to first remove inflow and infiltration per the Administrative Consent Order. Though many other pipe defects were observed, MSA recommends at this time, for cost reasons, to delay the construction of remedial measures where infiltration or surface water inflow were not observed. The exception to this is when, based on observed deficiencies, failure to correct the observed issues now could likely lead to correcting the observed issues as emergency repairs in the near future. A summary of probable construction and engineering costs by each pipe rating, where pipe lining is recommended, is as follows: · Pipe Rating 5 – $122,900.00 · Pipe Rating 4 – $42,300 These probable construction costs include MSA’s estimate of design and construction fees to prepare projects for bidding, MSA’s estimate of administrating the projects during the construction phase, a contingency factor, and an attempt to account for inflation (2.5%) for a period of one year. Please note the MSA’s engineering numbers are for budget use and are based on past experience. MSA did not prepare a project plan with a specific custom scope of work for the City of Riverdale. MSA will take on that effort when asked to present a proposed Professional Services Agreement with a specific scope of work. The cost summaries with an associated pay item description of the noted remedial measures are included in Appendix D. Also included in this year’s sewer rehabilitation effort is sanitary manhole rehabilitation. It is MSA’s opinion that the cost of rehabilitating the manholes in this phase of the City’s multi-year plan is about $29,000. Also included in the cost of this phase of sewer rehabilitation are costs that are related to other projects within the broader scope of ongoing projects for the City of Riverdale. The first of these projects is the rehabilitation of the storm sewer for Manor Drive. If incorporated into this sanitary sewer rehabilitation effort, it is MSA’s opinion that this project cost is about $35,900. The second of these projects is a carryover from the first phase of the City’s sanitary sewer rehabilitation effort. This project is the CIPP lining of the South Bellingham Street sanitary sewer. To refresh, treatment of the pipe to prevent inflow at the inactive sanitary laterals was originally planned as only partial lining of the sanitary sewer at the lateral locations. However, subsequent re-televising of this sewer by Visu-Sewer revealed several more inactive sanitary laterals than what the original televising indicated. Thus, the cost to partially line only at each lateral location 12 became more costly than just lining the entire sewer and restoring only those laterals that need to remain active. MSA estimates the cost for this project to be about $44,300. It is MSA’s opinion that there is definite savings in combining Manor Drive and South Bellingham Street into this year’s annual sewer rehabilitation effort rather than treating these as separate projects. The combination of all these components: the sewer pipe runs rated 5, the sewer pipe runs rated 4, the sanitary manholes, Manor Drive Storm Water Drainage, and South Bellingham Street, constitute the proposed project for this year. The total cost of the proposed project for this year is about $274,200. APPENDIX A IDNR Administrative Consent Order IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER IN THE MATTER OF: JOINT USE OF SANITARY SEWERS AND SEWAGE DISPOSAL FACILITIES: City of Davenport, Iowa, City of Bettendorf, Iowa, City of Riverdale, Iowa, City of Panorama Park, Iowa NPDES Permit #8222003 Scott County, Iowa ADMINISTRATIVE CONSENT ORDER NO. 2013-WW- TO: William E. Gluba, Mayor Robert S. Gallagher, Mayor City of Davenport City of Bettendorf 226 W 4th Street 1609 State Street Davenport IA 52801 Bettendorf IA 52722 John J. Franklin, Mayor David White, Mayor City of Riverdale City of Panorama Park 110 Manor Drive P.O. Box 533 Riverdale, IA 52722 112 Short Street Panorama Park, IA 52767 I. SUMMARY This administrative consent order (Order) is entered into between the Cities of Davenport, Bettendorf, Riverdale, and Panorama Park and the Iowa Department of Natural Resources (DNR) for the purpose of establishing a schedule for necessary upgrades to the Davenport Water Pollution Control Plant and the wastewater collection systems of Davenport and Bettendorf to achieve compliance with applicable requirements and to eliminate the discharge of untreated wastewater from the collection systems. Any questions regarding this Order should be directed to: Relating to technical requirements:Relating to legal requirements: Paul Brandt, Environmental Specialist Sr. Jon Tack, Attorney for the DNR DNR Field Office #6 Iowa Department of Natural Resources 1023 W. Madison 502 E. 9th Street Washington, Iowa 52353-1623 Des Moines, Iowa 50319 Phone: 319-653-2135 Phone: 515-281-8889 IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES 2 II. JURISDICTION This Order is issued pursuant to the provisions of Iowa Code section 455B.175(1), which authorizes the Director to issue any order necessary to secure compliance with or prevent a violation of Iowa Code Chapter 455B, Division III, Part 1 (wastewater) and the rules adopted or permits issued pursuant to that part, and Iowa Code section 455B.109 and 567 Iowa Administrative Code (IAC) Chapter 10, which authorize the Director to assess administrative penalties. III. STATEMENT OF FACTS The DNR and the Cities of Davenport, Bettendorf, Riverdale, and Panorama Park hereafter referred to as “Joint Use Cities” agree to the following facts: 1. An intergovernmental agreement providing for construction and joint use of sanitary sewers and sewage disposal facilities was signed by the City of Davenport, Iowa, the City of Bettendorf, Iowa, the City of Riverdale, Iowa and the City of Panorama Park, Iowa on January 5, 1974. This agreement which has been amended continues to be the basis for operating, maintaining, and financing the common plant and system assets. 2. The Joint Use Cities own and operate the Joint Sewerage Committee Water Pollution Control Plant, a mechanical wastewater plant serving approximately 29,590 residential connections, 7,032 commercial connections, and 20 industrial connections in the city of Davenport. The plant also serves approximately 12,749 residential connections, 776 commercial connections and 3 industrial connections in Bettendorf. Approximately 200 residential connections and 10 commercial connections are served in Riverdale. The plant serves approximately 55 residential connections in Panorama Park. The wastewater plant is designed to handle an average dry weather flow of 26.0 million gallons per day (mgd) and an average wet weather flow of 40.0 mgd. A construction permit was issued by the DNR on March 15, 1974 for the construction of the Davenport Water Pollution Control Plant in accordance with current NPDES. 3. The Davenport wastewater plant has historically received wet weather flows in volumes far exceeding the plant’s design capacity. These excessive flows result in the discharge of untreated wastewater from the collection system and partially treated wastewater from the plant, blended with treated wastewater. 4. Pursuant to 567 IAC 60.2, a bypass is the diversion of waste streams from any portion of a treatment facility or collection system. A bypass does not include internal operational waste stream diversions that are part of the design of the treatment facility, maintenance diversions where redundancy is provided, diversions of wastewater from one point in a collection system to another point in a collection system, or wastewater backups into buildings that are caused in the building lateral or private sewer line. IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES 3 5. In 2010, the Joint Use Cities discharged 547.7 million gallons of partially treated wastewater to the Mississippi River at the wastewater treatment plant over a total of 74 separate days of discharge. In addition to these discharges, Davenport reported the discharge of untreated wastewater from the wastewater collection system on three occasions in 2010. 6. In 2009, the Joint Use Cities discharged 723.8 million gallons of partially treated wastewater to the Mississippi River at the wastewater treatment plant over a total of 90 separate days of discharge. In addition to these discharges, Davenport reported the discharge of untreated wastewater from the wastewater collection system on 18 occasions in 2009. 7. The Davenport Water Pollution Control Plant also serves Bettendorf, Riverdale and Panorama Park. Each city owns and maintains the wastewater collection system within each respective city limits and proportionately shares in the ownership, cost of operation and maintenance of the Davenport Water Pollution Control Plant. Proportionate ownership is allocated based on a community’s use expressed as a percentage. Percentages for fiscal year 2012 are: Davenport, 79.66%; Bettendorf, 19.81`%; Riverdale, 0.46%; and Panorama Park, 0.07%. 8. When influent flow to the wastewater plant exceeds the plant’s design capacity, influent flow is restricted and backs up in the Bettendorf collection system. In 2010, the City of Bettendorf reported discharging over 33.2 million gallons of untreated wastewater to the Mississippi River over the course of 7 separate incidents lasting 11 days. 9. The Department and the Joint Use Cities have been working together for several years to develop a strategy to eliminate or minimize the bypassing of partially treated wastewater at the Davenport Water Pollution Control Plant and within the wastewater collection systems of the Joint Use Cities. 10. The Joint Use Cities have committed to a 20-year Capital Improvement Plan that contains at least 20 sewer-related projects at a cost of over $160 million dollars. 11. This Order is intended to establish a schedule for the completion of wastewater collection, handling and treatment improvements necessary for the Joint Use Cities to achieve compliance with applicable regulations. In the event a signatory fails to abide by the schedules contained herein, each or any of the other signatories may enforce this Order against the breaching party. IV. CONCLUSIONS OF LAW The DNR and the Joint Use Cities agree that the following conclusions of law are applicable in this case: 1. Pursuant to Iowa Code section 455B.186(1), a pollutant shall not be disposed of by dumping, depositing, or discharging such pollutant into any water of the state, except that IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES 4 this section shall not be construed to prohibit the discharge of adequately treated sewage, industrial waste, or other waste pursuant to a permit issued by the director. 2. Pursuant to 567 IAC 63.6, bypasses from any portion of a treatment facility or from a sanitary sewer collection system designed to carry only sewage are prohibited. Pursuant to 567 IAC 60.2, a bypass is the diversion of waste streams from any portion of a treatment facility or collection system. A bypass does not include internal operational waste stream diversions that are part of the design of the treatment facility, maintenance diversions where redundancy is provided, diversions of wastewater from one point in a collection system to another point in a collection system, or wastewater backups into buildings that are caused in the building lateral or private sewer line. The DNR has documented violations related to untreated discharges by the Joint Use Cities, as documented in the Statement of Facts above. 3. Pursuant to 567 IAC 64.2(10)“b”, a sanitary sewer construction permit may be denied if bypassing has occurred at the treatment facility, except when any of the following conditions are being met: (1) The bypassing is due to a combined sewer system, and the facility is in compliance with a long-term CSO control plan approved by the department. (2) The bypassing occurs as a result of a storm with an intensity or duration greater than that of a storm with a return period of five years. (3) The department determines that timely actions are being taken to eliminate bypassing. 4. Pursuant to 567 IAC 64.2(10) “c”, a sanitary sewer construction permit may be denied if an existing downstream sewer is or will be overloaded or surcharged, resulting in bypassing, flooded basements, or overflowing manholes, unless: (1) The bypassing or flooding is the result of a precipitation event with an intensity or duration greater than that of a storm with a return period of two years. (2) The system is under full-scale facility planning (I/I and SSES) and the applicant provides a schedule that is approved by the department for rehabilitating the system to the extent necessary to handle the additional loadings. V. ORDER By the execution of this Order, the DNR orders and the Joint Use Cities agree to undertake the wastewater collection, handling, and treatment projects set forth in the Joint Sewer Use Communities Capital Improvement Plan (CIP) submitted to the DNR by the Joint Use Cities, dated March 30, 2012, as amended on May 31, 2012. The Joint Use Cities specifically agree to the following deadlines: 1. Beginning upon the execution of this Order and continuing until the sooner of the completion of all related projects set forth in the CIP or July 1, 2018, the Joint Use Cities shall undertake the cleaning and televising of interceptor sewers within the sanitary sewer collection systems of the respective cities including but not limited to the Old Riverfront IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES 5 Interceptor (1930’s), the 1970’s Riverfront Interceptor and the Eastern Interceptor sewer in order to identify blockages, any cross connections with storm sewers or other clear-water connections, needed repairs or other potentially necessary improvements in the interceptor sewers as shown in Figures AO-1 and AO-2. 2. By July 1, 2013, the Joint Use Cities shall install and maintain such permanent sanitary sewer metering devices as are necessary to evaluate flow conditions within the sanitary sewer system and determine the wastewater storage and treatment capacity needs of the cities. 3. Continuing until the sooner of the completion of all related projects set forth in the CIP or July 1, 2018, the Joint Use Cities shall undertake the study and actions to remove inflow and infiltration sources from the Interceptor Sewers shown in Figures AO-1 and AO- 2 beginning upon the execution of this Order. To the extent that the tasks as identified in paragraph #6 below required to complete this project require the cooperation of, and performance of work by, the United States Army Corps of Engineers; the DNR and the Joint Use Cities agree to work cooperatively to obtain such cooperation and assistance of the Corps as identified in facility plan CIP. 4. By January 1, 2015, Davenport shall submit all construction permit applications necessary for the wastewater treatment plant optimization project. 5. By July 1, 2017, the Joint Use Cities shall substantially complete construction for the wastewater treatment plant optimization project. The goal of the plant optimization Phase I project shall be, in part, to increase the secondary capacity from 45 mgd to approximately 52 mgd. Phase II will complete the plant optimization project following the identification of cost effective inflow/infiltration projects. 6. By December 2018, the Joint Use Cities shall contact the DNR Wastewater Engineering Section to request the scheduling of a meeting to review and discuss the anticipated construction projects necessary to address the conclusions and findings derived from the evaluations of the sanitary sewer collection systems conducted pursuant to paragraph #1, #2 and #3, above. 7. It is the intent of the parties that by December 31, 2018, the DNR and the Joint Use Cities will execute a written agreement or exchange correspondence that identifies, based on the meeting required by paragraph #6, above, all repairs and improvements to the sanitary sewer collection system which are necessary and appropriate and which will be undertaken by the Joint Use Cities. 8. By July 1, 2019, the Joint Use Cities shall submit all construction permit applications necessary to undertake repairs and improvements to the sanitary sewer collection system as identified during the inspection and televising process described in paragraph #1, above. IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES 6 9. By December 31, 2019, the Joint Use Cities shall submit all construction permit applications, if any, necessary to undertake repairs and improvements to the sanitary sewer collection system as identified during the inspection and televising process described in paragraph #3, above. 10. By January 1, 2019, Davenport shall submit an application for a construction permit for the construction of a wastewater disinfection system at the Davenport Water Pollution Control Plant. 11. By July 1, 2021, Davenport shall complete substantial construction of a wastewater disinfection system at the Davenport Water Pollution Control Plant. 12. By December 31, 2021 the Joint Use Cities shall complete sanitary sewer trunk system repairs or improvements identified as necessary and appropriate pursuant to paragraph #7, above. 13. By October 1, 2021, Davenport shall comply with applicable effluent limitations for bacteria in its discharges from the Davenport Water Pollution Control Plant. Such effluent limitations are not yet established at the time of execution of this Order. Nothing in this Order shall be construed to restrict the rights of the parties to establish, contest, or appeal such bacterial effluent limitations. 14. By July 1, 2023(need time to measure flows after completion of #12 and #9), Davenport shall submit an application for a construction permit for an equalization basin or such other modifications or improvements to the Davenport Water Pollution Control Plant as are necessary to comply with 567 IAC 63.6. 15. By July 1, 2025, Davenport shall complete construction of an equalization basin or such other modifications or improvements to the Davenport Water Pollution Control Plant as are necessary to comply with 567 IAC 63.6. 16. Beginning April 1, 2013 and continuing through January 31, 2026, the Joint Use Cities shall submit yearly progress reports to the DNR, due by April 1 (approval of CIP),of each year, detailing progress toward compliance with this Order and setting forth a timeline of work to be performed in furtherance of this Order for the following 12-month period. 17. By July 1, 2026, the Joint Use Cities shall achieve and maintain compliance with 567 IAC 63.6, NPDES Permit No. 8222993, and all other applicable requirements of state and federal law related to the operation and maintenance of a publicly owned treatment works which are required by the Joint Use Cities NPDES permit. 18. The Joint Use Cities agree and acknowledge that nothing in this Order is intended to modify the standard construction permitting procedures of the DNR or the requirements thereof. The Joint Use Cities shall take full consideration of such procedures in the timing of required submissions in order to comply with the deadlines set forth herein. IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES 7 19. Nothing in this Order is intended to dictate or establish the apportionment of costs or funding obligations between the Joint Use Cities for any joint projects required by this Order or for any projects for which existing municipal agreement establish the funding liabilities of the Joint Use Cities. It is the responsibility of the Joint Use Cities to determine and assess such costs as determined to be appropriate by the parties. Pursuant to the agreement of the Joint Use Cities, the costs of any joint projects required by this Order shall be allocated in proportion with and expressly limited to each constituent community’s percentage share of ownership of the Davenport Water Pollution Control Plant. 20. If the remediation steps called for in this consent order result in a cessation of violation for an extended period of time, Joint Sewer Use Committee (JSUC) may request that the IDNR review the status of this order. The parties agree that the goal of this order is compliance with statutes and regulations in order to provide protection of human health and the environment, and not to unduly burden the sewer rate payers with infrastructure that is not needed. VI. PENALTY 1. Iowa Code section 455B.191 authorizes the assessment of civil penalties of up to $5,000.00 per day of violation for the violations involved in this matter. 2. Iowa Code section 455B.109 authorizes the Commission to establish by rule a schedule of civil penalties up to $10,000 that may be assessed administratively. The Commission has adopted this schedule with procedures and criteria for assessment of penalties at IAC Chapter 567 - 10. Pursuant to this chapter, the Department is authorized to issue an administrative order with penalties for noncompliance with this Order or to refer such noncompliance to the Iowa Attorney General for the initiation of a District Court action seeking such penalties and injunctive relief. VII. WAIVER OF APPEAL RIGHTS This Order is entered into knowingly by and with the consent of the Joint Use Cities. For that reason, the Joint Use Cities individually waive the right to appeal this Order or any part thereof. VIII. NONCOMPLIANCE Failure to comply with this Order may result in referral to the Attorney General to obtain injunctive relief pursuant to Iowa Code section 455B.191. Compliance with section V. of this Order constitutes full satisfaction of all requirements pertaining to the violations described in section “IV. Conclusions of Law” of this Order. IOWA DEPARTMENT OF NATURAL RESOURCES ADMINISTRATIVE CONSENT ORDER JOINT USE CITIES Lam._ CHUCK GIPP, DIRECTOR Iowa Department of Natural Resources City of Davenport ROBERT S. GALLAGHER, MAYOR City of Bettendorf Cd4s#04: ---F J9. J. F NKLIN, MAYOR ity of Riverdale DAVID WHI IF, MAYOR City of Panorama Park Dated this f Y day of G►.. e' , 2013 Dated this / '? ay of -i� , 2013 Dat i is 04-I day of i� ,2013 Dated 's 7'c day of , 2013 Dated this 2 c=" day of , 2013 NPDES #8222003; Field Office #6; Jon Tack; EPA; Water Quality Bureau; I.C.l 8 Figure 1.A - Plan View of Interceptors (Davenport)Legend Riverfront Interceptors (by diameter (in.) & age) 30, 1930's 42, 1970's 48, 1930's 54, 1970's 54, 1930's 66, 1970's 72, 1970's 78, 1970's 96, 1970's Major Pipes Government Box Storm Sewer Municipal Boundary 0 0.25 0.50.125 Miles Riverfront Interceptors (by diameter (in.) & age) April 24th, 2012Basemap provided by ESRI - World Street Map 1970's Davenport Interceptor Sanitary Sewer 1930's Davenport Interceptor Sanitary Sewer Gov't Storm Box (Storm Sewer Outlet) 1930's Davenport Interceptor Sanitary Sewer Gov't Storm Box (Storm Sewer) Eastern Interceptor Sanitary Sewer 1970's Davenport Interceptor Sanitary Sewer Upstream Start Figure AO-1 - Plan View of Interceptors (Davenport) Riverfront Interceptors (by diameter (in.) & age) Figu re 1.B - Pla n View o f Intercep to rs (Be tten dorf)Legend Riverfront Interceptors (by diameter (in.) & age) 30, 1930's 42, 1970's 48, 1930's 54, 1970's 54, 1930's 66, 1970's 72, 1970's 78, 1970's 96, 1970's Major Pipes Government Box Storm Sewer Municipal Boundary 0 0.25 0.50.125 Miles Riverfront Interceptors (by diameter (in.) & age) April 24th, 2012Basemap provided by ESRI - World Street Map Davenport City Limit Bettendorf City Limit Eastern Interceptor Sanitary Sewer Starts Here Gov't Storm Box (Storm Sewer Upstream Boundary) Eastern Interceptor Sanitary Sewer Figure AO-2 - Plan View of Interceptors (Bettendorf) Riverfront Interceptors (by diameter (in.) & age) APPENDIX B MSA Manhole Inspections MANHOLE INSPECTION: E1-4 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.7_______ ft Depth of Frame: ________0.85_______ ft Number of Adjustment Rings: _______3_______ Diameter: _______too deep_______ ft Manhole Depth: ______very deep________ ft Notes: 5.7 ft to pipe Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-1 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.7_______ ft Depth of Frame: _______1________ ft Number of Adjustment Rings: _______2_______ Diameter: _______too deep_______ ft Manhole Depth: _______6.9_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-2 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.3_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: ______0________ Diameter: _______6_______ ft Manhole Depth: _______10.1_______ ft Notes: leak present Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-3 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.8_______ ft Depth of Frame: _______0.5________ ft Number of Adjustment Rings: ______0________ Diameter: _______6_______ ft Manhole Depth: _______11_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-4 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.66_______ ft Depth of Frame: _______0.33________ ft Number of Adjustment Rings: ______0________ Diameter: _______6_______ ft Manhole Depth: _______8.55_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-4A Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.8_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: ___cannot tell___ Diameter: _______5_______ ft Manhole Depth: _______8.6_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-5 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.75_______ ft Depth of Frame: _______0.5________ ft Number of Adjustment Rings: ______0________ Diameter: _______5_______ ft Manhole Depth: _______7_______ ft Notes: Leak in barrel joint Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-5A Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.75_______ ft Depth of Frame: _______0.5________ ft Number of Adjustment Rings: _______0_______ Diameter: _______6_______ ft Manhole Depth: _______8.3_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-6 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.25_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______1_______ Diameter: _______5_______ ft Manhole Depth: _______11.6_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-7 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.55_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: ______1________ Diameter: _______6_______ ft Manhole Depth: _______5.7_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-8 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: ______3.1________ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: ______4________ Diameter: _______too deep_______ ft Manhole Depth: _______7.5_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-9 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.25_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: ______0________ Diameter: _______5_______ ft Manhole Depth: _______8.8_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-10 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.1_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______0_______ Diameter: _______5_______ ft Manhole Depth: _______10.1_______ ft Notes: Frame misaligned Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-11 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: ______1.25________ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______0_______ Diameter: _______5_______ ft Manhole Depth: _______9_______ ft Notes: Frame misaligned Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-11A Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.875_______ ft Depth of Frame: _______0.625________ ft Number of Adjustment Rings: _______0_______ Diameter: _______5_______ ft Manhole Depth: _______8.8_______ ft Notes: Frame Misaligned Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-12 Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: ______1.5________ ft Depth of Frame: ________0.75_______ ft Number of Adjustment Rings: _______1_______ Diameter: _______5_______ ft Manhole Depth: _______7.8_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E4-12A Municipality: Riverdale, Iowa Date of Inspection: May 6, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: ______1.8________ ft Depth of Frame: _______0.91________ ft Number of Adjustment Rings: ______3________ Diameter: _______4_______ ft Manhole Depth: ______15.2________ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E6-7 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.8_______ ft Depth of Frame: _______0.4________ ft Number of Adjustment Rings: _______0_______ Diameter: _______6_______ ft Manhole Depth: _______7.2_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-3A Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.2_______ ft Depth of Frame: _______0.45________ ft Number of Adjustment Rings: _______3_______ Diameter: _______too deep_______ ft Manhole Depth: _______14.3_______ ft Notes: Lid set below grade Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-3B Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______3.35_______ ft Depth of Frame: ________0.75_______ ft Number of Adjustment Rings: ______5________ Diameter: _______too deep_______ ft Manhole Depth: _______10.8_______ ft Notes: leak b/w first adj. ring & barrel Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-4 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.3_______ ft Depth of Frame: ________0.45_______ ft Number of Adjustment Rings: _______3_______ Diameter: _______5_______ ft Manhole Depth: _______8.15_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-5 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.8_______ ft Depth of Frame: _______0.45________ ft Number of Adjustment Rings: _______0_______ Diameter: _______6_______ ft Manhole Depth: _______12.7_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-7 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.83_______ ft Depth of Frame: _______0.375________ ft Number of Adjustment Rings: _______0_______ Diameter: _______5_______ ft Manhole Depth: _______very deep_______ ft Notes: at least 35 ft deep Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-8 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.8_______ ft Depth of Frame: ________0.4_______ ft Number of Adjustment Rings: _______2_______ Diameter: _______6_______ ft Manhole Depth: _______11_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-9 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.7_______ ft Depth of Frame: _______0.4________ ft Number of Adjustment Rings: _______0_______ Diameter: _______6_______ ft Manhole Depth: _______16.5_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-10 Municipality: Riverdale, Iowa Date of Inspection: May 7, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.75_______ ft Depth of Frame: _______0.45________ ft Number of Adjustment Rings: _______2_______ Diameter: _______5_______ ft Manhole Depth: _______10.9_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH Page 1 of 2 MANHOLE INSPECTION: E7-11 Municipality: Riverdale, Iowa Date of Inspection: January 12, 2021 Pipe Alignment Diagram: Manhole Information: 4” or 6” lateral entering MH Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.50_______ ft Depth of Frame: _______0.50_____ ft Number of Adjustment Rings: _______0_______ Diameter: _______5_______ ft Manhole Depth: _______8.65_______ ft Notes: MH Lid elevation needs to be raised 1.25 Ft min. Picture No. 1: Picture of Manhole Interior NORTH Page 2 of 2 Picture No. 2: Picture of Manhole Lid, Frame, and Chimney MANHOLE INSPECTION: E7-12 Municipality: Riverdale, Iowa Date of Inspection: May 12, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.2_______ ft Depth of Frame: _______0.45________ ft Number of Adjustment Rings: _______2_______ Diameter: _______4_______ ft Manhole Depth: _______14.25_______ ft Notes: leak at base joint & joint halfway up Frame out of alignment Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-13 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______0.75_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______0_______ Diameter: _______4_______ ft Manhole Depth: _______5.1_______ ft Notes: Frame out of alignment Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: E7-13A Municipality: Riverdale, Iowa Date of Inspection: June 12, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.3_______ ft Depth of Frame: _______0.8________ ft Number of Adjustment Rings: _______1_______ Diameter: _______5_______ ft Manhole Depth: _______6.5_______ ft Notes: left (???) entrance plugged Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: MH-67 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.8_______ ft Depth of Frame: _______0.8________ ft Number of Adjustment Rings: _______1_______ Diameter: _______4_______ ft Manhole Depth: _______9.9_______ ft Notes: Frame out of alignment Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: MH-67A Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.35_______ ft Depth of Frame: _______0.85________ ft Number of Adjustment Rings: _______2_______ Diameter: _______too deep_______ ft Manhole Depth: _______12.7_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: MH-68 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.2_______ ft Depth of Frame: _______0.8________ ft Number of Adjustment Rings: _______2_______ Diameter: _______too deep_______ ft Manhole Depth: _______11.7_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: MH-69 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.75_______ ft Depth of Frame: _______0.85________ ft Number of Adjustment Rings: _______3_______ Diameter: _______too deep_______ ft Manhole Depth: _______12.65_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: MH-70 Municipality: Riverdale, Iowa Date of Inspection: May 19, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.9_______ ft Depth of Frame: _______0.9________ ft Number of Adjustment Rings: _______2_______ Diameter: _______4_______ ft Manhole Depth: _______12.1_______ ft Notes: Manhole located beneath yard decoration in garden Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: X-2 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.4_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______0_______ Diameter: _______4_______ ft Manhole Depth: _______13.5_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: X-3 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______3.45_______ ft Depth of Frame: _______0.65________ ft Number of Adjustment Rings: _______4/5_______ Diameter: _______too deep_______ ft Manhole Depth: _______15.05_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: X-4 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.65_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______1_______ Diameter: _______too deep_______ ft Manhole Depth: _______18.6_______ ft Notes: Frame out of alignment Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: X-5 Municipality: Riverdale, Iowa Date of Inspection: May 13, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.25_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: ___cannot tell___ Diameter: _______too deep_______ ft Manhole Depth: _______16.6_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: X-6 Municipality: Riverdale, Iowa Date of Inspection: May 12, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______2.6_______ ft Depth of Frame: _______0.75________ ft Number of Adjustment Rings: _______2_______ Diameter: _______4_______ ft Manhole Depth: _______15.1_______ ft Notes: Picture of Manhole Interior Picture of Chimney Assembly NORTH MANHOLE INSPECTION: X-7 Municipality: Riverdale, Iowa Date of Inspection: June 16, 2020 Pipe Alignment Diagram: Manhole Information: Standard Manhole Frame and Lid: Yes No Total Chimney Depth: _______1.3_______ ft Depth of Frame: _______0.8________ ft Number of Adjustment Rings: _______0_______ Diameter: _______5_______ ft Manhole Depth: _______11.1_______ ft Notes: buried 1.6 ft below ground Picture of Manhole Interior Picture of Chimney Assembly NORTH APPENDIX C Visu-Sewer Televising Summary Report 1 1 1 1 1 w f A A A M I I V L visu-sewer nspect.Maintan,Rehabilitate. www.Visu-Sewer.com S Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 01 Upstream MH T 67 Time 3:16 PM Grass 8.4 Pipe Size 8 Weather Dry Surveyed Length 85 Ftg. Code Description • 0.0 AMH Access Point - Manhole 0.0 MWL Water Level . 85.0 AMH Access Point - Manhole Material Downstream MH E7-13 Location (Street) NORTH COLLECTOR RUN Polyvinyl Chloride Surface Total Length 85 Jt. Spacing Shape 5 US MH Depth Surveyor CODY Comments Circular DS MH Depth 9.6 Certificate No. U-113-17044 Position Cont. Comment Starting Manhole: 67 MANHOLE E7-13 RIVERDALE IA CCTV Job Number r 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Paae 1 of 39 Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/5/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 01 Upstream MH 67A 7 Time 2:46 PM Pipe Size 8 Weather Dry Surveyed Length 206 Downstream MH j 67 Location (Street) HIGH SCHOOL PARKING LOT BY TENNIS COURTS Material Vitrified Clay Pipe Surface Grass Total Length Jt. Spacing 5 US MH Depth 11.4 Surveyor 206 I CODY Comments Ftg. Code Description ^0.0 AMH Access Point - Manhole -0.0 MWL Water Level RIVERDALE IA CCTV Job Number 202111A-01 Shape Survey Direction Circular Downstream DS MH Depth Flow Direction 10.8 S Certificate No. Truck No. U-113-1704 223 Position Cont. Comment Starting Manhole: 67A •206.0 AMH Access Point - Manhole MANHOLE 67 Page 2 of 39 SVi —Sewer L Inspect. suMaintain. Rehabilitate. www.Visu-Sewer.com Date 081512020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 01 Upstream MH 68 Time 12:39 PM Pipe Size 8 Weather Dry Surveyed Length 260 Downstream MH 67A Location (Street) RIVERDALE IA CCTV Job Number HIGH SCHOOL PARKING LOT BY TENNIS COURTS 1 I 202111A-01 Material Jt. Spacing Shape Vitrified Clay Pipe Surface Grass ti Total Length 260 1 Ftg. Code Description *0.0 AMH Access Point - Manhole 0.0 MWL Water Level 3.0 FC Fracture Circumferential .3.0 RFB Roots, Fine: Barrel 80.6 MWLS Water Level: Sag -260.0 AMH Access Point - Manhole 5 US MH Depth 11.3 Surveyor CODY Comments Circular DS MH Depth 11.4 Certificate No. { U-113-17044 Survey Direction Downstream Flow Direction S Truck No. 223 Position Cont. Comment Starting Manhole: 68 6 to 6 6 to 6 MANHOLE 67A Page 3 of 39 Visu-Sewer L inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Upstream MH 69 Date Time 08/4/2020 Use of Sewer Sanitary Pre -Cleaning L Jetting Media No. 01 1 2:40 PM Pipe Size 8 Weather Dry Downstream MH 68 Location (Street) PARKING LOT OF THE SCHOOL GOING WEST Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 248 248 Ftg. Code Description .0.0 AMH Access Point- Manhole •0.0 MWL Water Level 435.7 MWLS Water Level: Sag -53.3 MWLS Water Level: Sag ^90.3 MWLS Water Level: Sag ^93.0 FL Fracture Longitudinal +101.3 MWLS Water Level: Sag —•132.6 MWLS Water Level: Sag -148.4 MWLS Water Level: Sag 198.2 MWLS Water Level: Sag --•223.5 MWLS Water Level: Sag 248.0 MWLS Water Level: Sag 248.0 AMH Access Point - Manhole Jt. Spacing 5 US MH Depth 11.2 Surveyor CODY Comments Position 9 Shape Circular DS MH Depth 11.3 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction W Truck No. r 438 Cont. Comment Starting Manhole: 69 SO1 F01 SO2 F02 MANHOLE 68 Page 4 of 39 V , VISIT -Sewer L. Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/4/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 01 Upstream MH 70 Time 2:00 PM Pipe Size Weather Dry Surveyed Length 296 Material Vitrified Clay Pipe Downstream MH 69 Location (Street) LINE NORTH OF PARKING LOT ON PRIVATE PROPERTY Jt. Spacing 5 Surface US MH Depth Grass I- 7.5. Total Length 296 —1 Ftg. Code Description • 296.0 AMH Access Point - Manhole • 292.5 RFJ Roots, Fine: Joint •188.4 TF Tap, Factory Made • 116.5 MWLS Water Level: Sag 113.9 TF Tap, Factory Made 108.4 MWLS Water Level: Sag • 87.2 TF Tap, Factory Made -66 6 TF Tap, Factory Made -0.0 MWL Water Level • 0.0 AMH Access Point - Manhole Surveyor CODY Comments Position 7 to 5 3 2 10 2 Shape Circular DS MH Depth 11.2 Certificate No. U-113-17044 1 RIVERDALE IA CCTV Job Number 20211IA-01 Survey Direction Upstream Flow Direction S Truck No. 438 Cont. Comment MANHOLE 70 F01 SO1 Starting Manhole: 69 Page 5 of 39 I I I Visu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/13/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 01 Upstream MH E4-1 Time 10:14 AM -7 Pipe Size 15 Weather Downstream MH) E1-4 Location (Street) SOUTH COLLECTOR LINE UNDER HIGHWAY Material Vitrified Clay Pipe Surface Asphalt Surveyed Length Total Length 135 135 Jt. Spacing 5 US MH Depth 5.2 Surveyor CODY Comments RIVERDALE IA CCTV Job Number 202111A-01 Shape Survey Direction Downstream DS MH Depth Flow Direction Circular 10.5 S Certificate No. Truck No. U-113-17044 223 Ftg. Code Description •0.0 AMH Access Point - Manhole 0.0 MWL Water Level 68.2 MMC Material Change Position Cont. Comment Starting Manhole: E4-1 CLAY TO CAST IRON 133.5 TF Tap, Factory Made 6 OUTSIDE DROP d 135.0 AMH Access Point - Manhole MANHOLE E1-4 I DONT WANT TO FALL INTO THE DROP THE MANHOLE IS RIGHT HERE Page 6 of 39 Visu-Sewer L Inspect, Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning I No Pre -Cleaning Media No. 01 Upstream MH E4-2 Time 5:12 PM Pipe Size 15 Weather Dry Surveyed Length 250 Downstream MH E4-1 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe 1 Surface Grass Total Length 250 Jt. Spacing 5 US MH Depth 7.5 Surveyor CODY-1 Comments Ftg. Code Description 0.0 AMH Access Point - Manhole ^0.0 MWL Water Level 412.1 TF Tap, Factory Made 250.0 AMH Access Point- Manhole Shape Circular RIVERDALE IA CCTV Job Number 202111A-01 DS MH Depth 7.8 Certificate No. U-113-17044 Survey Direction Downstream Flow Direction S Truck No. 438 Position Cont. Comment Starting Manhole: E4-2 2 MANHOLE E4-1 Page 7 of 39 1 1 1 1 1 1 1 1 1 1 i 1 VNsu-Sewer `. Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning] Media No. 01 Upstream MH E4-3 Time 4:54 PM Pipe Size 15 Weather Downstream MH E4-2 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 322 322 Jt. S acin 5' US MH Depth 7.1 Surveyor CODY Comments Ftg. Code Description •0.0 AMH Access Point- Manhole 0.0 MWL Water Level 267.5 RMJ Roots, Medium, Joint -276.0 DAE Deposits Attached: Encrustation RIVERDALE IA CCTV Job Number 202111A-01 Shape Survey Direction Downstream DS MH Depth Flow Direction Circular 7.5 S Certificate No. Truck No. U-113-17044 438 Position Cont. Comment Starting Manhole: E4-3 3 to 5 7 to 9 292.9 RMJ Roots, Medium, Joint 6 to 10 =322.0 AMH Access Point- Manhole MANHOLE E4-2 Page 8 of 39 L4111 I Sev e /1 Inspectusu. Maintain.— Rehabilir tate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 01 Upstream MH E4-4 Time 4:17 PM Pipe Size 15 1 Weather Dry Downstream MH E4-3 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 316 316 Jt. Spacing 5 US MH Depth 7.1 Surveyor CODY Comments Ftg. Code Description •316.0 AMH Access Point- Manhole •210.4 MWLS Water Level: Sag • 133.4 RMJ Roots, Medium, Joint ^6.0 MWLS Water Level: Sag 0.0 MWL Water Level •0.0 AMH Access Point - Manhole Shape Circular RIVERDALE IA CCTV Job Number DS MH Depth 7.1 Certificate No. U-113-17044 202111A-01 Survey Direction Upstream Flow Direction S Truck No. 438 Position Cont. Comment MANHOLE E4-4 8 to 12 Starting Manhole: E4-3 Page 9 of 39 r f Visu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 01 Upstream MH E4 -4A Time 3:59 PM Pipe Size 15 Weather Surveyed Length 244 Downstream MH E4-4 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 244 Jt. Spacing US MH Depth 6.6 Surveyor CODY Comments Ftg. Code Description 0.0 AMH Access Point - Manhole •0.0 MWL Water Level Shape Circular DS MH Depth 7.1 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Position Cont. Comment Starting Manhole: E4 -4A NEW MH NOT ON MAP I 244 0 AMH Access Point - Manhole MANHOLE E4-4 Page 10 of 39 Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Upstream MH E4-5 Time 3:49 PM Pipe Size 15 Weather Dry Media No. Surveyed Length 01 82 Downstream MH E4 -4A Location (Street) SOUTH COLLECTOR RUN Material ' Vitrified Clay Pipe Surface Grass Total Length 82 Jt. Spacing 5 Shape Circular US MH Depth DS MH Depth 6.5 Surveyor CODY Comments 6.6 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Ftg. Code Description •0.0 AMH Access Point - Manhole x-0.0 MWL Water Level Position Cont. Comment Starting Manhole: E4-5 ^36.2 MWLS Water Level: Sag SO1 82.0 MWLS Water Level: Sag F01 X82.0 AMH Access Point - Manhole MANHOLE E4 -4A NEW MH NOT ON MAP Page 11 of 39 V 11ieS csu-Sewer Insp t. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 01 Upstream MH E4 -5A Time 3:03 PM Pipe Size 15 Weather Surveyed Length 385 Downstream MH E4-5 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 385 Jt. Spacing 5 US MH Depth 6,1 Surveyor CODY Comments Shape Circular DS MH Depth 6.5 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Ftg. Code Description -0.0 AMH Access Point - Manhole 0.0 MWL Water Level 143.7 MWLS Water Level: Sag Position Cont. Comment Starting Manhole: E4 -5A NEW MH NOT ON MAP .385.0 AMH Access Point- Manhole MANHOLE E4-5 Page 12 of 39 ■• ■ Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 01 Upstream MH E4-6 Time 2:54 PM Pipe Size 15 Weather Downstream MH E4 -5A Location (Street) SOUTH COLLECTOR RUN Material j Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 103 103 Jt. Spacing 5 US MH Depth 5.5 Surveyor CODY Comments Shape Circular DS MH Depth 6.1 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Ftg. Code Description 0.0 AMH Access Point - Manhole ^0.0 MWL Water Level Position Cont. Comment Starting Manhole: E4-6 103.0 AMH Access Point - Manhole MANHOLE E4 -5A NOT ON MAP Page 13 of 39 Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 01 Upstream MH E4-7 Time 2:35 PM Pipe Size 15 Weather Dry Surveyed Length 180 RIVERDALE IA CCTV Downstream MH E4-6 Location (Street) Job Number SOUTH COLLECTOR RUN Material LVitrified Clay Pipe Surface Grass Total Length 180 ` Jt. Spacing 5 US MH Depth 9.2 Surveyor Comments CODY Shape Circular DS MH Depth 5.5 Certificate No. U-113-17044 Ftg. Code Description 0.0 AMH Access Point - Manhole =0.0 MWL Water Level • 180.0 AMH Access Point - Manhole Position 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Cont. Comment Starting Manhole: E4-7 MANHOLE E4-6 Page 14 of 39 Y' Visu-Sewer ►. Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer 1 Sanitary Pre -Cleaning No Pre -Cleaning Media No. 01 Upstream MH E4-8 Time 1:51 PM Pipe Size 15 Weather Surveyed Length 316 Material Downstream MH E4-7 Location (Street) SOUTH COLLECTOR RUN Vitrified Clay Pipe Surface Grass Total Length 316 Jt. Spacing 5 US MH Depth 9.5 Surveyor CODY Comments Ftg. Code Description -0 0 AMH Access Point - Manhole 0.0 MWL Water Level •7.0 DSZ Deposits Settled: Other •25.3 DSZ Deposits Settled: Other .137.5 DSZ Deposits Settled: Other -203.9 DSZ Deposits Settled: Other RIVERDALE IA CCTV Job Number l Shape Survey Direction 202111A-01 Circular Downstream DS MH Depth Flow Direction 9.2 S Certificate No. Truck No. U-113-17044 438 Position Cont. Comment Starting Manhole: E4-8 4 to 8 SO1 DEBRI 4 to 8 F01 DEBRI 4 to 8 SO2 DEBRI 4 to 8 F02 DEBRI 316.0 AMH Access Point - Manhole MANHOLE E4-7 Page 15 of 39 v4L1 lil'isu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary _ Pre -Cleaning_ I No Pre -Cleaning Media No. 01 Upstream MH E4-9 Time 11:12 AM Pipe Size 15 Weather Dry Downstream MH E4-8 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 375 375 Jt. Spacing US MH Depth 9.8 Surveyor CODY Comments Ftg. Code Description —•0.0 AMH Access Point - Manhole X0.0 MWL Water Level •76.6 CL Crack Longitudinal RIVERDALE IA CCTV Job Number 202111A-01 Shape Survey Direction Circular Downstream DS MH Depth Flow Direction 9.5 S Certificate No. Truck No. U-113-17044 438 Position Cont. Comment Starting Manhole: E4-9 10 305.6 DAE Deposits Attached: Encrustation 12 to 4 •375.0 AMH Access Point- Manhole MANHOLE E4-8 Page 16 of 39 WSVisu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer L Sanitary Pre -Cleaning No Pre -Cleaning Media No. 02 Upstream MH E4-10 Time L 10:54 AM Pipe Size 15 Weather Dry Surveyed Length 341 Downstream MH E4-9 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 341 Jt. Spacing 5 1 US MH Depth 9.7 Surveyor CODY Comments #�f Ftg. Code Description �•0.0 AMH Access Point - Manhole x—•0.0 MWL Water Level Shape Circular DS MH Depth 9,8 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 J Position Cont. Comment Starting Manhole: E4-10 341.0 AMH Access Point - Manhole MANHOLE E4-9 Page 17 of 39 —S ewer IV L Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 02 #k# pstrea m MH E4-11 Time 9:42 AM Pipe Size 15. Weather Dry Downstream MH E4-10 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 241 241 Jt. Spacing 5 US MH Depth 9.6 Surveyor CODY Comments Ftg. Code Description •0.0 AMH Access Point - Manhole 0.0 MWL Water Level —241.0 AMH Access Point - Manhole Shape Circular DS MH Depth 9.7 Certificate No. U-113-17044 Position Cont. Comment Starting Manhole: E4-11 MANHOLE E4-10 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction S Truck No. 438 Page 18 of 39 Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 02 Upstream MH E4 -11A Time 9:16 AM Pipe Size 15 Weather Dry Surveyed Length 272 Downstream MH E4-11 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 272 Jt. Spacing 5 US MH Depth 9.5 Surveyor CODY Comments Ftg. Code Description =0.0 AMH Access Point- Manhole X0.0 MWL Water Level RIVERDALE IA CCTV Job Number 202111A-01 Shape Survey Direction Circular Downstream DS MH Depth Flow Direction 9.6. S Certificate No. Truck No. U-113-17044 438 Position Cont. Comment Starting Manhole: E4 -11A 272.0 AMH Access Point - Manhole MANHOLE E4-11 Page 19 of 39 • Sewer L VisuMa Inspect. intain. Rehabilitate. www.Visu-Sewer.com Date 08/6/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 02 Upstream MH E4-12 Time 8:36 AM Pipe Size 15 Weather Dry Downstream MH [ E4 -11A 1 Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 256 256 Jt. Spacing 5 US MH Depth 10.3 Surveyor CODY Comments Ftg. Code Description ^256.0 AMH Access Point- Manhole •0.0 MWL Water Level 0.0 AMH Access Point - Manhole Shape Circular DS MH Depth 9.5 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number I 202111A -01 1 Survey Direction Upstream Flow Direction S Truck No. 438 Position Cont. Comment MANHOLE 4-12 Starting Manhole: E4 -11A Page 20 of 39 isu-Sewer VS Inspect, Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning j Media No. 02 Upstream MH E4-12 Time 3:34 PM Pipe Size 15 Weather Dry Surveyed Length 91 Downstream MH E4 -12A Location (Street) SOUTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 1 91 Jt. Spacing 5 US MH Depth 11.4 Surveyor CODY Comments Shape Circular DS MH Depth 9.6 Certificate No. U-113-17044 Ftg. Code Description •0.0 AMH Access Point - Manhole -0.0 MWL Water Level Position Cont. Comment Starting Manhole: E4-12 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction W Truck No. 438 91.0 AMH Access Point - Manhole MANHOLE E4 -12A Page 21 of 39 SL Inspect, Maintain. Rehabilitate. Visu-Sewer www.Visu-Sewer.com Date 08/5/2020 Use of Sewer Sanitary Pre -Cleaning Jetting 7 Media No. 02 Upstream MH E6-7 Time 5:07 PM Pipe Size Weather Dry Surveyed Length 370 Downstream MH E7-5 Location (Street) LINE GOING EAST IN THE TREES Material Vitrified Clay Pipe Surface Grass Total Length 370 Jt. Spacing 1 5 US MH Depth 10.2 Surveyor CODY Comments RIVERDALE IA CCTV Job Number 202111A-01 Shape Survey Direction Circular Upstream DS MH Depth Flow Direction 11.4 E Certificate No. Truck No. U-113-17044 223 Ftg. Code Description 370.0 AMH Access Point - Manhole -369.4 MWLS Water Level: Sag *359.3 RMJ Roots, Medium, Joint •347.9 MWLS Water Level: Sag 299.7 MWLS Water Level: Sag -289 5 MWLS Water Level: Sag 274.2 MWLS Water Level: Sag -263.9 MWLS Water Level: Sag -238.6 MWLS Water Level: Sag .231.8 MWLS Water Level: Sag •192.7 MWLS Water Level: Sag -188.3 MWLS Water Level: Sag -50.2 MWLS Water Level: Sag •6.1 MWLS Water Level: Sag ■0.0 MWL Water Level AMH Access Point - Manhole Position Cont. Comment MANHOLE E6-7 7 to 5 F06 S 06 F05 S05 F04 SO4 F03 S03 F02 SO2 F01 SO1 Starting Manhole: E7-5 Page 22 of 39 V Visu-5ewer lL Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Upstream MH E7-10 Date Time 08/18/2020 1 Use of Sewer Pipe Size Sanitary 1 r 10 Pre -Cleaning 2:07 PM Jetting Media No. 02 Weather Dry Surveyed Length 310 Downstream MH E7-9 Location (Street) NORTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 310 Jt. Spacing 5 US MH Depth 9.1 Surveyor CODY Comments Shape Circular DS MH Depth 7.8 Certificate No. U-113-17044 1 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction E Truck No. 438 Ftg. Code Description ^0.0 AMH Access Point - Manhole .0 .0 MWL Water Level ^19.1 RMJ Roots, Medium, Joint 265.6 MWLS Water Level: Sag 310.0 MWLS Water Level: Sag 310.0 RMJ Roots, Medium, Joint 310.0 AMH Access Point - Manhole Position Cont. Comment Starting Manhole: E7-10 7 to 5 SO1 SO2 F02 7to5 F01 MANHOLE E7-9 Page 23 of 39 IIIis�[-Sewell L_ Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/5/2020 Use of Sewer Sanitary Pre -Cleaning Media No. 02 Upstream MH E7-4 Time 2:57 PM Pipe Size 10 Weather Dry Surveyed Length 281 Downstream MH E7 -3A Location (Street) LINE GOING EAST IN THE TREES Material Vitrified Clay Pipe Surface Grass Total Length 281 Jt. Spacing 5 US MH Depth 11.4 Surveyor CODY Comments Ftg. Code Description •281.0 AMH Access Point - Manhole ^0.0 MWL Water Level -0 0 AMH Access Point - Manhole Position Shape Circular RIVERDALE IA CCTV Job Number I < 202111A-01 Survey Direction I Upstream DS MH Depth 12.3 Certificate No. U-113-17044 Flow Direction E Truck No. 223 Cont. Comment MANHOLE E7-4 Starting Manhole: E7 -3A Page 24 of 39 • 1 Visu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/5/2020 Use of Sewer Sanitary Pre-Clleaning Jetting Media No. 02 Upstream MH E7-5 Time 4:48 PM Pipe Size 10 Weather Dry Surveyed Length 396 Downstream MH E7-4 Location (Street) LINE GOING EAST IN THE TREES Material Vitrified Clay Pipe Surface Grass Total Length 396 1 Jt. Spacing 5 US MH Depth 11.4 Surveyor CODY Comments Ftg. Code Description 396.0 AMH Access Point - Manhole 327 1 RFJ Roots, Fine: Joint •252.9 RFJ Roots, Fine: Joint 81.0 MWLS Water Level: Sag RIVERDALE IA CCTV Job Number I 202111A-01 1 Shape Survey Direction Circular Upstream DS MH Depth Flow Direction 10.5 E Certificate No. Truck No. U-113-17044 223 Position Cont. Comment MANHOLE E7-5 7 to 6 11 to 12 0.0 MWL Water Level 0.0 AMH Access Point - Manhole Starting Manhole: E7-4 Page 25 of 39 Y i 1 IL Visu—Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 02 Upstream MH E7-7 Time 12:06 PM Pipe Size 10 Weather Dry Surveyed Length 270 Downstream MH E6-7 Location (Street) NOTH COLLECTOR RUN Material Cast Iron Surface Grass Total Length 270 Jt. Spacing 5 US MH Depth 7.8 Surveyor CODY Comments Ftg. Code Description 0.0 AMH Access Point - Manhole 0.0 MWL Water Level -105.3 MMC Material Change RIVERDALE IA CCTV Job Number 20211IA-01 Shape Survey Direction Circular Downstream DS MH Depth Flow Direction 7.8 E Certificate No. Truck No. U-113-17044 Position Cont. Comment Starting Manhole: E7-7 CAST IRON TO CLAY 438 I -270.0 AMH Access Point - Manhole MANHOLE E6-7 Page 26 of 39 y 1 Visu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 02 Ftg. Code -0.0 AMH =0.0 MWL -14.8 RMJ -30 8 RMJ 36.1 RMJ Upstream MH E7-8 Time 11:43 AM Pipe Size 10 Weather Dry Surveyed Length 386 Downstream MH E7-7 Location (Street) NOTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 386 Jt. Spacing 5 US MH Depth 8.5 Surveyor CODY Comments Description Access Point - Manhole Water Level Roots, Medium, Joint Roots, Medium, Joint Roots, Medium, Joint .115.4 MMC Material Change -152.0 RMJ Roots, Medium, Joint Shape Circular DS MH Depth 7.8 Certificate No. [ U-113-17044 RIVERDALE IA CCTV Job Number 20211IA-01 Survey Direction [ Downstream 1 Flow Direction E Truck No. 438 Position Cont. Comment Starting Manhole: E7-8 7 to 5 7 to 5 7 to 5 7 to 5 S01 F01 CLAY TO CAST IRON 386.0 AMH Access Point - Manhole MANHOLE E7-7 Page 27 of 39 ■ F' r Qr Visu5ewer LA, Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning Jetting U stream MH E7-9 Time 12:43 PM Pipe Size 10 Weather Dry Downstream MH E7-8 Location (Street) NORTH COLLECTOR RUN Material Vitrified Clay Pipe Surface L Grass Media No. Surveyed Length Total Length 02 I 388 388 Jt. Spacing 5 US MH Depth 8.3 Surveyor f CODY Comments Ftg. Code Description 388 0 AMH Access Point - Manhole ^388.0 RMJ Roots, Medium, Joint Shape Circular DS MH Depth 7.8 Certificate No. L U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Surve Direction Upstream Flow Direction E Truck No. 438 Position Cont. Comment MANHOLE E7-9 HAD TO BACK JET THIS LINE NOT ENOUGH HOSE ON JET TRUCK 7 to 5 F01 165.3 MWLS Water Level: Sag F02 -150.5 MWLS Water Level: Sag SO2 8.0 RMJ Roots, Medium, Joint 7 to 5 SO1 3.0 RMJ Roots, Medium, Joint 7 to 9 •0.0 MWL Water Level ^0.0 AMH Access Point - Manhole Starting Manhole: E7-8 Page 28 of 39 Visu-Sewer II` Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/12/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 03 Upstream MH T E7-11 Time 3:19 PM Pipe Size 10 Weather Dry Surveyed Length 363 Downstream MH E7-10 Location (Street) NORTH COLLECTOR RUN IN THE WOODS Material Vitrified Clay Pipe Surface Grass Total Length 363 Jt. Spacing 5 US MH Depth 10.3 Surveyor CODY Comments Ftg. Code Description .0.0 AMH Access Point - Manhole —0.0 MWL Water Level 59.0 RFJ Roots, Fine: Joint 3 MWLS Water Level: Sag 469.2 RMJ Roots, Medium, Joint 73.9 MWLS Water Level: Sag 74.6 RMJ Roots, Medium, Joint 85.4 MWLS Water Level: Sag 90.2 RMJ Roots, Medium, Joint 95.6 RFJ Roots, Fine: Joint +121.5 RMJ Roots, Medium, Joint •131.5 RMJ Roots, Medium, Joint -147.2 RMJ Roots, Medium, Joint -152.8 RFJ Roots, Fine: Joint 162.7 RFJ Roots, Fine: Joint -173.2 RMJ Roots, Medium, Joint 271.3 MWLS Water Level: Sag 277.6 MWLS Water Level: Sag .293.7 RFJ Roots, Fine: Joint 303.7 RFJ Roots, Fine: Joint 343.8 MWLS Water Level: Sag 353.1 DSZ Deposits Settled: Other 363.0 MWLS Water Level: Sag 363.0 RFJ Roots, Fine: Joint 6 to 6 F04 363.0 AMH Access Point - Manhole Shape Q_ Circular DS MH Depth '10.5 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 20211IA-01 Survey Direction Downstream Flow Direction E Truck No. 223 Position Cont. Comment Starting Manhole: E7-11 MANHOLE IS BURIED 11 to 5 6 to 3 7 to 5 7 to 5 9 to 5 1 to 6 6 to 6 9 to 4 7 toll 11 to 2 2 to 6 1 to 3 7 to 6 4 to 8 SO1 F01 SO2 F02 S03 F03 SO4 S05 F05 DEBRI MANHOLE E7-10 Page 29 of 39 vsVisu-Semler Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 03 Upstream MH E7-12 Time 3:04 PM Pipe Size 8 Weather Dry Surveyed Length 95 Downstream MH X-7 Location (Street) NORTH COLLECTOR RUN Material Cast Iron Surface Grass Total Length 95 Jt. Spacing 5 US MH Depth [ 11.2 Surveyor CODY Shape Circular DS MH Depth 9.6 Certificate No. U-113-17044 Comments RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction N Truck No. 438 Ftg. Code Description ^0.0 AMH Access Point - Manhole ^0.0 MWL Water Level '79.2 MWLS Water Level: Sag Position Cont. Comment Starting Manhole: E7-12 SO1 95.0 MWLS Water Level: Sag F01 95.0 AMH Access Point - Manhole MANHOLE X-7 Page 30 of 39 M M V Visu-5ewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/12/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 03 Upstream MH E7-13 Time 12:09 PM Pipe Size 8 Weather Dry Downstream MH X7 Location (Street) LINE ON THE FOOTBALL FIELD NORTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Surveyed Length Total Length 306 306 Jt. Spacing 5 US MH Depth 10.2 Surveyor CODY Comments Ftg. Code Description •306.0 AMH Access Point - Manhole .0.0 MWL Water Level •0.0 AMH Access Point - Manhole Starting Manhole: X7 RIVERDALE IA CCTV Job Number 202111A-01 1 Shape Survey Direction Upstream DS MH Depth Flow Direction Circular 13.6 S Certificate No. Truck No. U-113-17044 223 Position Cont. Comment MANHOLE E7-13 Page 31 of 39 VSVisu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Upstream MH X-2 1 Date Time 08/5/2020 ] I 9:55 AM Downstream MH X-3 Location (Street) HIGH SCHOOL PARKING LOT Use of Sewer Pipe Size Material Jt. Spacing L Sanitary j 8 I I Vitrified Clay Pipe I 5 Pre -Cleaning Weather 1 No Pre -Cleaning Media No. 03 Dry Surface Grass Surveyed Length Total Length 196 196 US MH Depth 11.6 Surveyor CODY Comments Ftg. Code Description -0.0 AMH Access Point - Manhole .0.0 MWL Water Level .31.0 DAE Deposits Attached: Encrustation -31.0 ID Infiltration - Dripper .41.4 IS Infiltration - Stain -41.4 DAE Deposits Attached: Encrustation .71.7 DAE Deposits Attached: Encrustation ^81 3 DAE Deposits Attached: Encrustation -81 3 ID Infiltration - Dripper —+111.5 IS Infiltration - Stain 131.5 DAE Deposits Attached: Encrustation ^196.0 AMH Access Point - Manhole Shape Circular DS MH Depth 11.4 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction E Truck No. 223 Position Cont. Comment Starting Manhole: X-2 7 to 5 8 to 4 7 to 4 9 to 12 6to10 7 to 5 9 to 3 7 to 5 8 to 4 MANHOLE X-3 Page 34 of 39 1C1 Viso -Sewer i _ '11 Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/5/2020 Use of Sewer Sanitary Pre -Cleaning No Pre -Cleaning Media No. 03 Upstream MH X-3 Time 10:17 AM Pipe Size Weather Downstream MH X-4 Location (Street) HIGH SCHOOL PARKING LOT Material l Vitrified Clay Pipe Dry Surveyed Length 186 Surface Grass Total Length 186 Jt. Spacing 5 US MH Depth 11.4 Surveyor CODY Comments Ftg. Code Description •0.0 AMH Access Point - Manhole 0.0 MWL Water Level 16.2 DAE Deposits Attached: Encrustation 21.0 DAE Deposits Attached: Encrustation * 31.0 DAE Deposits Attached: Encrustation '31.0 ID Infiltration - Dripper •108.6 MMC Material Change Shape Circular DS MH Depth 11.5 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream 1 Flow Direction L E Truck No. 223 Position Cont. Comment Starting Manhole: X-3 2 to 4 7 to 4 7 to 5 11 to 1 CLAY TO CAST IRON ..178.3 IS Infiltration - Stain 6 to 5 186.0 AMH Access Point - Manhole MANHOLE X-4 Page 35 of 39 Visu-Sewer Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/5/2020 Upstream MH X-4 Time 10:46 AM Use of Sewer Pipe Size Sanitary Pre -Cleaning Jetting Media No. 03 8 Weather Dry Downstream MH X-5 Location (Street) RIVERDALE IA CCTV Job Number HIGH SCHOOL PARKING LOT BEHIND FOOTBALL FIELD Material Cast Iron Surface Grass Surve yed Len th Total Length 386 I 386 Jt. Spacing 5 US MH Depth 11.5 Surveyor CODY Comments Ftg. Code Description -0.0 AMH Access Point - Manhole -0 0 MWL Water Level -50 7 MMC Material Change 202111A-01 Shape Survey Direction Downstream DS MH Depth Flow Direction Circular 11.8 E Certificate No. Truck No. U-113-17044 223 Position Cont. Comment Starting Manhole: X-4 121.2 IS Infiltration - Stain 7 to 5 140.4 MWLS Water Level: Sag -151.7 MWLS Water Level: Sag • 166.0 DAE Deposits Attached: Encrustation 8 to 4 s166.0 IR Infiltration - Runner 10 to 2 —_ ►181.1 IS Infiltration - Stain ' 7 to 6 • 181.1 IR Infiltration - Runner 10 to 4 -196.0 IS Infiltration - Stain 6 to 6 -196.0 IR Infiltration - Runner 6 to 5 •205.8 IS Infiltration - Stain 1 to 6 SO1 F01 -235.7 IS Infiltration - Stain 7 to 5 SO2 .240.6 IS Infiltration - Stain 7 to 5 F02 250.4 IS Infiltration - Stain 6 to 5 S03 277.7 MWLS Water Level: Sag .285.5 IR Infiltration - Runner ^295.4 IW Infiltration - Weeper .310.3 IR Infiltration - Runner .330.0 IR Infiltration - Runner 340.2 IR Infiltration - Runner •350.1 IR Infiltration - Runner 9 to 2 9toI 8 to 4 10 to 3 10 to 2 8 to 5 A386.0 IS Infiltration - Stain 6 to 6 F03 • 386.0 AMH Access Point - Manhole CAST IRON TO CLAY MANHOLE X-5 Page 36 of 39 Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/5/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 03 Upstream MH X-5 Time 12:20 PM Pipe Size 8 Weather Downstream MH X-6 Location (Street) HIGH SCHOOL PARKING LOT BEHIND FOOTBALL FIELD Material Cast Iron Dry , j Surveyed Length 284 Surface Grass Jt. Spacing 5 Shape Circular US MH Depth DS MH Depth 11.8 ! 11.4 Total Len th Surv or Certificate No. 284 T CODY 1 I U-113-17044 Comments RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction Downstream Flow Direction E I Truck No. 223 _f Ftg. Code Description Position Cont. Comment ^0.0 AMH Access Point - Manhole Starting Manhole: X-5 -0.0 MWL Water Level 124.9 MMC Material Change CAST IRON TO CLAY 143.9 IS Infiltration - Stain 7 to 6 153.9 DAE Deposits Attached: Encrustation 6 to 5 169.2 -•173.9 \' 174.0 '`• 174.5 • 184.6 •194.5 •209.1 —•210.2 219.2 MWLS Water Level: Sag SO1 IS Infiltration - Stain 6 to 6 SO2 IR Infiltration - Runner 9 to 11 MWLS Water Level: Sag F01 MWLS Water Level: Sag S03 ID Infiltration - Dripper 12 to 2 IR Infiltration - Runner 8 to 4 MWLS Water Level: Sag F03 DAE Deposits Attached: Encrustation 7 to 12 -263.3 MWLS Water Level: Sag SO4 A284.0 MWLS Water Level: Sag F04 284.0 IS Infiltration - Stain 6 to 5 F02 284.0 AMH Access Point - Manhole MANHOLE X-6 Page 37 of 39 Visu-Sewer L Inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/18/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 03 Upstream MH X-6 Time 2:38 PM Pipe Size 8 Weather Dry Surveyed Length 136 Downstream MH E7-12 Location (Street) NORTH COLLECTOR RUN Material Vitrified Clay Pipe Surface Grass Total Length 136 Jt. Spacing 5 US MH Depth 10.8 Surveyor CODY Comments Shape Circular DS MH Depth 11.2 Certificate No. RIVERDALE IA CCTV Job Number 202111A-01 Survey Direction 1, Upstream r U-113-17044 Flow Direction E Truck No. 438 Ftg. Code Description 136.0 AMH Access Point - Manhole -136.0 DAE Deposits Attached: Encrustation 136.0 MWLS Water Level: Sag -121.3 MWLS Water Level: Sag 83.9 MWLS Water Level: Sag ^76.7 ID Infiltration - Dripper 65.0 MWLS Water Level: Sag 62.0 ID Infiltration - Dripper • 11.4 ID Infiltration - Dripper -6.5 DAE Deposits Attached: Encrustation e 0.0 MWL Water Level .0.0 AMH Access Point - Manhole Position 6 to 6 12 to 4 10 to 1 12 to 5 6 to 6 Cont. Comment MANHOLE X-6 F01 F03 S03 F02 SO2 S01 Starting Manhole: E7-12 Page 38 of 39 h V Vi 5ewe r iL inspect. Maintain. Rehabilitate. www.Visu-Sewer.com Date 08/12/2020 Use of Sewer Sanitary Pre -Cleaning Jetting Media No. 03 Upstream MH X-7 Time 1:47 PM Pipe Size 10 Weather Dry Downstream MH E7-11 Location (Street) NORTH COLLECTOR RUN IN THE WOODS Material Cast Iron Surface Grass Surveyed Length Total Length 189 189 Jt. Spacing 20 US MH Depth 13.6 Surveyor CODY Comments Ftg. Code Description _ •0.0 AMH Access Point - Manhole �� ~•0.0 MWL Water Level .3.5 DAE Deposits Attached: Encrustation 19 4 MWLS Water Level: Sag 39.9 MWLS Water Level: Sag 147.4 MMC Material Change Shape Circular DS MH Depth 10.3 Certificate No. U-113-17044 RIVERDALE IA CCTV Job Number f 202111A-01 ] Survey Direction Downstream Flow Direction E Truck No. 223 Position Cont. Comment Starting Manhole: X-7 7 to 5 SO1 F01 CAST IRON TO CLAY 189.0 AMH Access Point - Manhole MANHOLE E7-11 BURIED MANHOLE Page 39 of 39 APPENDIX D Engineer’s Opinion of Probable Project Costs For Rehabilitation Projects DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 196 LF 2 SANITARY SEWER PIPE CHEMICAL GROUTING 2 EA 3 REAM DEPOSITS 4 EA 4 CURED IN PLACE PIPE LINING, 8"196 LF 5 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES Sewer Run X2 - X3 ESTIMATE YEAR: CONSTRUCTION YEAR: CONSTRUCTION SUBTOTAL City of Riverdale G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 186 LF 3 SANITARY SEWER PIPE CHEMICAL GROUTING 1 EA 3 REAM DEPOSITS 3 EA 4 CURED IN PLACE PIPE LINING, 8"186 LF 5 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Sewer Run X3 - X4 ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 386 LF 2 SANITARY SEWER PIPE CHEMICAL GROUTING 8 EA 3 REAM DEPOSITS 1 EA 4 CURED IN PLACE PIPE LINING, 8"386 LF 6 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Sewer Run X4 - X5 ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 284 LF 2 SANITARY SEWER PIPE CHEMICAL GROUTING 3 EA 3 REAM DEPOSITS 2 EA 4 CURED IN PLACE PIPE LINING, 8"284 LF 5 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Sewer Run X5 - X6 ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 136 LF 2 SANITARY SEWER PIPE CHEMICAL GROUTING 3 EA 3 REAM DEPOSITS 2 EA 4 CURED IN PLACE PIPE LINING, 8"136 LF 5 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Sewer Run X6 to E7-12 ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE 1 MOBILIZATION 1 LS $8,000.00 $8,000.00 2 OFF ROAD ACCESS PREMIUM 1 LS $1,000.00 $1,000.00 Pay Items 3 SANITARY SEWER TELEVISING 1188 LF $3.00 $3,564.00 4 SANITARY SEWER PIPE CHEMICAL GROUTING 17 EA $1,725.00 $29,325.00 5 REAM DEPOSITS 12 EA $500.00 $6,000.00 3 CURED IN PLACE PIPE LINING, 8"1188 LF $29.00 $34,452.00 4 END SEALS, 8"10 EA $200.00 $2,000.00 $84,341 Inflation 2.5%per year $2,109 2021 )$86,450 Contingency 15%$13,000 Design Engineering & Bidding 17%$14,700 Construction Engineering 10%$8,700 $122,900 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( TOTAL COST: SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale CONDITION 5 SUBTOTAL ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 248 LF 2 CURED IN PLACE PIPE LINING, 8"248 LF 3 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Sewer Run MH-69 to MH - 68 ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE Pay Items 1 SANITARY SEWER TELEVISING 363 LF 2 TRIM ROOTS 14 EA 3 CURED IN PLACE PIPE LINING, 8"363 LF 3 END SEALS, 8"2 EA $0 Inflation 2.5%per year $0 2021 )$0 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Sewer Run 7-11 to 7-10 ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE 1 MOBILIZATION 1 LS $2,000.00 $2,000.00 2 OFF ROAD ACCESS PREMIUM 1 LS $2,000.00 $2,000.00 Pay Items 3 SANITARY SEWER TELEVISING 611 LF $3.00 $1,833.00 4 TRIM ROOTS 14 EA $325.00 $4,550.00 5 SANITARY SEWER PIPE CHEMICAL GROUTING 0 EA $1,725.00 $0.00 6 CURED IN PLACE PIPE LINING, 8"611 LF $29.00 $17,719.00 7 END SEALS, 8"4 EA $200.00 $800.00 $28,902 Inflation 2.5%per year $723 2021 )$29,625 Contingency 15%$4,500 Design Engineering & Bidding 17%$5,100 Construction Engineering 10%$3,000 $42,300 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( TOTAL COST: SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale CONDITION 4 SUBTOTAL ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE General 1 MOBILIZATION 1 LS $500.00 $500 2 MRT TRAFFIC CONTROL 1 LS $500.00 $500 Pay Items 6 SANITARY SEWER TELEVISING 866 LF $3.00 $2,598.00 7 SANITARY SEWER CHEMICAL GROUTING 1 EA $1,725.00 $1,725.00 8 CURED IN PLACE PIPE LINING, 12"866 EA $35.00 $30,310.00 9 REINSTATE LATERAL CONNECTIONS 2 EA $150.00 $300.00 10 LATERAL GROUTING 2 EA $610.00 $1,220.00 11 END SEALS 6 EA 35.00$ $210.00 $37,363 Inflation 2.5%per year $934 2021 )$38,297 Contingency 5%$2,000 Design Engineering & Bidding 5%$2,000 Construction Engineering 5%$2,000 $44,300 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( TOTAL COST: SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Bellingham Road ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE General 1 MOBILIZATION 1 LS $500.00 $500.00 2 TRAFFIC CONTROL 1 LS $750.00 $750.00 Pay Items 3 SANITARY SEWER TELEVISING 558 LF $3.00 $1,674.00 4 CURED IN PLACE PIPE LINING, 12"558 EA $35.00 $19,530.00 5 REMOVE STORM SEWER 5 LF $20.00 $100.00 6 STORM MH 1 EA $4,000.00 $4,000.00 7 IMPORTED TOP SPOIL, 4"245 SY $4.50 $1,102.50 8 SEEDING 250 SY $2.50 $625.00 9 EROSION CONTROL BLANKET 245 SY $3.00 $735.00 10 END SEALS 4 EA $ 35.00 $140.00 $29,157 Inflation 2.5%per year $729 2021 )$29,885 Contingency 10%$3,000 Design Engineering & Bidding 5%$1,500 Construction Engineering 5%$1,500 $35,900 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( TOTAL COST: SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Manor Drive ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE General 1 MOBILIZATION 1 LS $1,000.00 $1,000.00 2 TRAFFIC CONTROL 1 LS $750.00 $750.00 Pay Items 3 Type 1 12 EA $1,000.00 $12,000.00 4 TYPE 2A 1 EA $250.00 $250.00 5 TYPE 2B 2 EA $400.00 $800.00 6 TYPE 3 1 EA $1,000.00 $1,000.00 7 TYPE 4 2 EA $1,000.00 $2,000.00 8 TYPE 5 2 EA $800.00 $1,600.00 9 TYPE 6 1 EA $1,200.00 $1,200.00 10 Type 7 1 EA $ 900.00 $900.00 $21,500 Inflation 2.5%per year $537 2021 )$22,038 Contingency 10%$2,300 Design Engineering & Bidding 10%$2,300 Construction Engineering 10%$2,300 $29,000 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL CONSTRUCTION SUBTOTAL ( TOTAL COST: SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale Phase 2 Manhole Rehabilitation ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2 DATE COMPLETED: 1/13/2021 2020 2021 ITEM NO.DESCRIPTION QTY.UNIT UNIT PRICE TOTAL PRICE 2021 )$206,294 Contingency $24,800 Design Engineering & Bidding $25,600 Construction Engineering $17,500 $274,200 *estimate does not include grant administrative costs CONSTRUCTION SUBTOTAL ( TOTAL COST: SANITARY SEWER EVALUATION - PHASE 2 OFF-ROAD SEWER LINES City of Riverdale 2021 PROGRAMMING ESTIMATE YEAR: CONSTRUCTION YEAR: G:\10\10876\10876066\Calculations\Opinion of probable Costs\10876066 201223 Sanitary Sewer Rehabilitation - Phase 2