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Hoboken Proposal For Cs Onet Monitoring System Rev Aug 2009
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Hoboken Proposal For Cs Onet Monitoring System Rev Aug 2009

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  • 1. Proposal for a CSOnet® Monitoring System For the City of Hoboken, NJ’s Collection System Prepared for The City of Hoboken 94 Washington Street Hoboken, NJ 07030 Aug. 17, 2009 The information in this proposal may not be disclosed outside of the City of Hoboken, and may not be duplicated, used or disclosed in whole or in part for any purpose other than to evaluate the proposal, provided that if a contract is awarded to EmNet, LLC as a result of or in connection with the submission of this proposal, The City of Hoboken will have the right to duplicate, use or disclose the information to the extent provided by the contract. This restriction does not limit the right of the City of Hoboken to use information contained in this proposal if it is obtained from another source without restriction. EmNet, LLC retains ownership of this proposal. This proposal is valid for 30 days from the date above. EmNet, LLC 12441 Beckley St., Suite 6 Granger, IN 46530 (574) 855-1012
  • 2. Table of Contents 1. Overview and Approach ........................................................................................................................3 1.1. Proposal Overview .............................................................................................................................3 1.2. CSOnet® Overview .............................................................................................................................4 1.3. CSOnet® Equipment ...........................................................................................................................4 2. Monitoring Locations .............................................................................................................................5 2.1. Monitoring Site Selection ...................................................................................................................5 2.2. Proposed Monitoring Locations .........................................................................................................6 3. Monitoring System Costs and Terms ...................................................................................................8 3.1. Equipment Costs .................................................................................................................................8 3.2. Subscription Options ..........................................................................................................................8 3.3. Cellular Fees ......................................................................................................................................9 3.4. Installation Costs................................................................................................................................9 3.5. Terms and Conditions ........................................................................................................................9
  • 3. 1. Overview and Approach 1.1. Proposal Overview The southwest portion of Hoboken, NJ is prone to flooding when rain events occur during high tide. The Hoboken sewer system is a combined sewer system, which means that the same system of pipes carries both municipal wastewater and stormwater runoff. To prevent the system from flooding during wet weather, relief points called outfalls are built into the sewer. These points are supposed to allow excess sewer flow to overflow into the Hudson River rather than having it flood streets and basements. During high tide, the southern outfalls, as well as many portions of southwestern and western Hoboken, lie below the river levels. This means that these outfalls are not able to release the excess sewer flows into the river. Instead, all of this water stays in the sewer system, and the sewage levels throughout the sewer system keep rising until either the sewage level is higher than the tide level or street flooding begins. The most flood prone areas are shown in Figure 1. Figure 1. A map of the Hoboken sewer system. The red areas are the lowest lying areas and are therefore the most prone to flooding. The Hoboken sewer system is set up to be a grid, with larger east-west main pipes each collecting wastewater from a portion of town (called a drainage area) These east-west pipes then carry the wastewater to two lift stations located along the Hudson River, which then pump all of the wastewater flow to the wastewater treatment plant. Throughout the sewer system, there are several smaller north-south pipes that connect each of the drainage areas. This means that flows from one drainage area can enter a different drainage area through any
  • 4. of these pipes. The grid approach to sewer systems means that the water throughout the sewer system will all have the same head (“head” refers the elevation of the water surface). What this means in reality is that when flooding occurs in one area, water from other areas will contribute to this flooding. The proposed solution to Hoboken’s flooding problem is to install four large pumps along the shoreline, which will pump excess water out of the sewer system and into the Hudson River in order to prevent flooding. EmNet proposes utilizing an extensive near real time monitoring system to provide the data necessary to possibly reduce the number of pumps that are needed to address this problem. It will allow the key parties to thoroughly study each part of the sewer system in detail so that an efficient, less expensive, tailor-made solution for each section of Hoboken can be developed. This will be especially necessary as the City of Hoboken transitions from a focus only on flood prevention to a focus that also includes CSO reduction. The monitoring system proposed here utilizes the CSOnet® system. 1.2. CSOnet® Overview CSOnet® is a unique real time control and monitoring system that seeks to maximize the potential of a municipality’s existing collection system and thereby minimize the need for further construction. The CSOnet® monitoring system enables municipalities to accurately characterize and study the collection system and how it operates under a variety of real weather conditions, rather than under only simplified, modeled conditions. This data can then be used to determine any current inefficiencies of the system and the most effective and cost efficient means to address them. The low cost and ease of installation of this system enables a municipality to have many more monitoring locations than other approaches, providing the municipality with a wealth of information. The data from the CSOnet® system can also be used to improve the preventative maintenance of the collection system and automatically notify municipal employees with e-mails and text messages in the event of an overflow or sewer problem. The CSOnet® system is perfectly scalable, and the same equipment that is used for monitoring can also be used to implement real time control within the collection system. 1.3. CSOnet® Equipment Figure 2. A CSOnet® Logicover™. Figure 3. A CSOnet® Gateway.
  • 5. The fundamental component of the CSOnet® monitoring system is the Logicover™ (see figure 2). The Logicover™ is a computerized, composite fiberglass manhole cover that is able to collect and broadcast data from sensors mounted in the sewer line. It can interface with almost any existing depth, flow, or water quality sensor and can accept up to four sensor analog inputs and one digital input. The Logicover™ is able to function in two modes: data logging mode or real time mode. In data logging mode, the Logicover™ collects the sensor data at 5 minute intervals and uploads the logged data to a secure website once a day via a cellular connection. In the event that a sensor measure rises above a pre-determined threshold (e.g., the depth at a manhole indicts the possibility of flooding), the Logicover™ will immediately upload any logged data and send an email or text message to the appropriate personnel. Because this unit is a completely self-contained and stand-alone unit, the name for the Logicover™ in this mode is the Logicover-SA™, which is short for Logicover Stand Alone™. The Logicover-SA™ is completely battery powered with an expected battery life of 1 year and is well suited for gaining background data for collection system studies, monitoring very remote areas, temporary monitoring projects, and event notification systems. Because these units are self contained, they can be easily moved from location to location to fulfill a variety of monitoring needs. In real time mode, the Logicover™ collects the sensor data and then immediately broadcasts it to a nearby data aggregation point, called a Gateway (see figure 3). The Gateway is continuously connected to the Internet via a cellular connection and uploads the sensor data to a secure website immediately. Because this Logicover™ is part of a large real time system, it is named the Logicover-RT™, which is short for Logicover™ Real Time. The expected battery life for this unit is 2-3 years. However, since the constant Internet connection consumes more power than can be provided by batteries, the Gateway must be connected to an external power source (either 110VAC or solar panels). One Gateway can accept data from numerous Logicovers™ and can be directly connected to up to four analog sensor inputs and two digital inputs. The Gateway can also analyze the data, make control decisions, and operate automated valves and pumps. The Logicover-RT™ is well suited for real time control systems, preventative maintenance programs, and the expansion of SCADA systems. Should the monitoring needs of the municipality change over time, the Logicover-SA™ can be converted into a Logicover-RT™ and vice-versa. Since this proposed monitoring system will be used primarily to gather data for later analysis, it is recommended that the Logicover-SA™ be used. 2. Monitoring Locations 2.1. Monitoring Site Selection The proposed monitoring system will: • Provide baseline data from which sewer improvements can be measured. • Provide necessary data in order to apply for grants and funding assistance. • Determine the effectiveness of the pumps in reducing flooding, especially as the pumps are incrementally installed.
  • 6. • Confirm/validate the selection of pump sizes for the pumps that will be installed at a later date • Aid the City and NHSA in the detection of problem spots in the sewer areas before they become significant problems • Explore alternative control strategies to reduce the flooding problem and to reduce the amount of CSO overflows (especially after the NJDEP becomes more strict in enforcing the EPA CSO mandates) • Provide data for the further calibration of the City’s computer model of the sewer system. • Characterize flows into and out of the flood prone areas, providing the data necessary to minimize flows into these areas during wet weather. • Determine how much overflow occurs during each storm and how effective different control measures are in reducing this amount over time. This will particularly important as the City and NJDEP transition into developing a CSO reduction plan. • Coordinate the operation of the pumps with actual conditions in the flood-prone areas of Hoboken rather than basing control on conditions in the areas of the pumps (which tend not to flood). • Reduce the amount of overflowed sewage and the operation and maintenance costs of the pumps by only having the pumps on when necessary to prevent flooding. Each of these sites will be monitored using a Logicover-SA™ and a pressure sensor or flow meter. 2.2. Proposed Monitoring Locations We propose installing monitoring points at the following locations: • Key sewer pipes that connect each drainage area with the rest of the sewer system (6 locations). This will help determine how flows from other drainage areas are entering the flood-prone areas during storm events. • Sections of the city that are the most prone to flooding (3 locations). This will help study the flooding patterns, determine the effectiveness of the pumps, provide an early detection system for flooding, and enable the pumps to be coordinated with actual conditions in the flood prone areas. • The CSO outfalls (9 locations). These are the areas where the overflows occur. These monitoring points will provide data on current overflow volumes, which will be necessary as the City and the NHSA transition into a CSO abatement strategy, and also provide data on the overflow reductions that occur as the strategy is implemented. Please note that the North Hudson Sewerage Authority only lists eight outfalls in Hoboken, but the sewer map shows nine overflow points. The reason for this discrepancy is that the NHSA does not include the H0 outfall as part of the Hoboken sewer system, even though the overflow line is on the map. Hence, the number of CSO monitoring points may need to be reduced to eight. The proposed locations of the monitoring points, their purpose, and recommended sensor type are listed in Table 1.
  • 7. Table 1. Proposed Monitoring Sites for Hoboken, NJ Location Monitoring Purpose Sensor Type Marshall and 1st Flood Prone Area Depth Willow and Newark Flood Prone Area Depth Willow and 2nd Drainage Area Interconnection Flow Meter Park and Observer CSO Outfall Depth Court and Observer CSO Outfall Depth Newark and River CSO Outfall/Drainage Area Flow Meter Interconnection 3rd and River CSO Outfall Depth th 4 and River CSO Outfall Depth 5th and Hoboken Shore Rd. CSO Outfall Depth th Madison and 7 Drainage Area Interconnection Flow Meter Willow and 7th Drainage Area Interconnection Flow Meter th Madison and 10 Drainage Area Interconnection/ Flood Flow Meter Prone Area Hudson and 11th CSO Outfall Depth th Hudson and 14 CSO Outfall Depth Hudson and 15th CSO Outfall Depth th Madison and 13 Drainage Area Interconnection Flow Meter Maps of the proposed monitoring locations and of the most flood prone areas are shown in Figure 4. (a) (b) Figure 4. (a) Map of the proposed monitoring locations and flood prone areas. (b) Map of the proposed monitoring locations and flood prone areas, with drainage area boundaries
  • 8. shown. Green triangles show locations where only depth will be monitored, yellow triangles show locations where flow will be monitored. 3. Monitoring System Costs and Terms 3.1. Equipment Costs The cost and quantity required for each type of equipment is listed below. Prices shown assume the Premium level of service is selected, which earns a 50% equipment discount. The number of units represents EmNet’s best estimate and may vary slightly after further analysis. Price Quantity Total Logicover-SA™ $ 2,714 16 $43,424 Flow Meter* $5,000 6 $30,000 Pressure Sensor* $910 10 $9,100 Total Cost $82,524 *Approximate cost. The City can either purchase the sensors through EmNet or directly from the manufacturer. 3.2. Subscription Options Monthly subscription fees are determined by service level, with two available options. The features of each are outlined below. Equipment discounts accompany the Premium service level. Intermediate Premium Cost per Logicover™ per month $125 $225 Data access P P Raw data storage and backup P P Website P P Engineer phone assistance P P In house service training P P In house maintenance P P Initial onsite consult P P Installation oversight / set up P Regular onsite maintenance P Email / phone alerts P Equipment discount P A sample of the CSOnet® website is shown in figure 5. This secure website enables the City to view the current and archived data from all of the monitoring points in the collection system in a clear and intuitive way using any internet connection. All of the monitoring data can be downloaded from this website into Microsoft Excel spreadsheets and then analyzed.
  • 9. Figure 5. The CSOnet® website. 3.3. Cellular Fees This fee varies based on cellular costs, approximately $40 per month per monitoring location. The City can either choose to contract directly with the cellular service provider for this service or to do so through EmNet, LLC. 3.4. Installation Costs The installation of the sensors and CSOnet® equipment can be done in a variety of ways. The installation of each Logicover™ is a matter of removing the old cover, mounting the sensor, connecting the sensor cable to the equipment, and placing the Logicover™ over the manhole. This work can be done in-house, using a local sewer contractor, or through EmNet, LLC. The estimated cost of installation is $50,000. 3.5. Terms and Conditions The following terms and conditions apply to the CSOnet® monitoring system: • The purchase of the CSOnet® system requires a one year subscription contract. After that point the contract can be renewed annually with the consent of both parties. • The equipment costs listed in section 3.1 Equipment Costs represent the full purchase price of the equipment. Should the City complete the monitoring project or decide not to renewal the subscription contract with EmNet, the CSOnet® equipment will remain the property of the City. • The subscription cost of the CSOnet® system listed in section 3.2 Subscription Options does not include the calibration of the sensors, only the CSOnet® equipment. The City can choose to either do this in-house or through EmNet, LLC under a separate contract.
  • 10. Signatures This SOW identified below is the complete agreement between EmNet and the City of Hoboken, NJ regarding Services, and replace any prior oral or written communications between us. Each party accepts the terms of this SOW by signing this SOW by hand or, where recognized by law, electronically. By such acceptance each party agrees that no modifications have been made to this SOW. Once accepted, please return a copy of this document to the EmNet address shown below. Any reproduction of this SOW made by reliable means (for example, photocopy, electronic scan or facsimile) is considered an original and all Services ordered under this SOW are subject to it. Agreed to: Agreed to: The City of Hoboken, NJ EmNet, LLC 12441 Beckley Street, Granger, IN 46530 By: By: Authorized signature Authorized signature Name (type or print): Name (type or print): Date: Date: ® Project Name: CSOnet Monitoring System for The City of Hoboken, NJ’s Combined Sewer System Estimated Start Date: Estimated End Date: