Utility Investigation Analysis Report

Transcription

1 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey NJDOE Project # May 2012 Prepared for: New Jersey Schools Development Authority 1 West State Street 5 th Floor P.O. Box 991 Trenton, NJ Prepared by: Dewberry Goodkind, Inc. 600 Parsippany Road Ste 301 Parsippany, NJ 07054

2 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey TABLE OF CONTENTS Page No. 1.0 INTRODUCTION AND SITE DESCRIPTION EXISTING CONDITIONS UTILITIES Water Service Sanitary Sewer Storm Water Electric Power & Natural Gas Telephone Cable TV & Internet REGULATIONS Sanitary Sewer Stormwater Management Water Distribution System CONCLUSIONS... 5 LIST OF APPENDICES Appendix A Appendix B Appendix C Appendix D Appendix E Site Location Map & Aerial Photo Utility Maps Utility Matrix Will Serve Letters Records of Communication i Q:\ \ \Adm\Reports\Utility Investigation Report\Utility Investigation Analysis Report_Reformatted docx

3 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey 1.0 INTRODUCTION AND SITE DESCRIPTION Dewberry Goodkind, Inc. (Dewberry) has performed a utility investigation analysis for the A. C. Redshaw Elementary School (Redshaw ES) which is part of the City of New Brunswick School District. Under the current proposed project, the New Jersey Schools Development Authority (NJSDA) will be constructing an 135,000 SF new elementary school building for 890 students with staff and on site parking. This investigation was conducted to identify the locations of existing utilities at the site and assess each system s compatibility for the proposed school. The Redshaw ES is located at 216 Livingston Avenue in the City of New Brunswick, Middlesex County, New Jersey. The site is designated as Block 219, Lot 1. The lot is 2.7 acres (235ft. x 500ft.) and is located in a C 3A Community/Profession/Office Zoning District. Adjacent streets include Comstock Street to the North, Delavan Street to the South, Lee Avenue to the East, and Livingston Avenue to the West (see Appendix A). This site is situated in a fully developed urban area. Livingston Avenue is a main thoroughfare with nearby businesses, schools and houses of worship. Residential properties are located east of the site, along Lee Street. 2.0 EXISTING CONDITIONS The site occupies the entire city block between Livingston Avenue and Lee Avenue and Comstock Street and Delavan Street. The site is currently vacant. Previously, the site contained the original A. C. Redshaw Elementary School. 3.0 UTILITIES As part of the previous utility investigation, a subsurface utility engineering (SUE) mark out was performed by Taylor Wiseman Taylor, to verify utility information shown on record drawings reviewed at the school and utility mapping provided by the City of New Brunswick. Utility mapping obtained from the City of New Brunswick Engineering Department is included in Appendix B. A summary of information regarding the utilities investigated for this site is presented in matrix format in Appendix C. It should be noted that all previous utility service connections for the school were located along Comstock Street. Will Serve letters were requested from each of the utility companies that served the existing school based on the assumption that a new school building of approximately 135,000 square feet will be constructed. Copies of the will serve letters are included in Appendix D. Appendix E contains records of correspondence with representatives of various utilities with regard to this investigation. 3.1 Water Service City water mains are located along each of the streets surrounding the site. Water service is provided by the New Brunswick Water Utility (NBWU). The NBWU was unable to provide information as to the age of the water system in the site vicinity. Based on our review of 1 Q:\ \ \Adm\Reports\Utility Investigation Report\Utility Investigation Analysis Report_Reformatted docx

4 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey mapping provided by the NBWU and field mark out, a 12 water main is located along Livingston Avenue, 6 water mains are located along Delavan and Lee Streets, and a 20 water main is located along Comstock Street. There are four (4) fire hydrants within the surrounding blocks (one on the NW corner of Lee Street and Comstock Street, one on the SE corner of Delevan Street and Lee Street, and two on the north side of Livingston Avenue), but no hydrants are located on the school block. The City of New Brunswick obtains its water from Weston s Mill Pond, which is fed by the Lawrence Brook, and the Delaware and Raritan Canal. It is delivered by pumping stations to the City s conventional water treatment plant, which has a capacity of 16 million gallons per day. Per the New Jersey Department of Environmental Protection s Division of Water Supply and Geoscience website, the City of New Brunswick s Water Department (PWSID ) has over 6 million gallons per day of firm source capacity. A will serve letter was received from Thomas A. Loughlin 3 rd, City Administrator, dated November 10, 2011, indicating that there is sufficient capacity to serve the proposed school facility. The average daily water demand for the proposed school is estimated to be in the range of 25,000 gpd based on 25 gallons per person and a maximum capacity of 890 students plus staff (Reference N.J.A.C.7: Table 1). 3.2 Sanitary Sewer City gravity sanitary sewer mains (8 ) are located along the centerline of Lee Avenue and Comstock and Delavan Streets. The sanitary sewers are maintained by the City of New Brunswick Department of Public Works (NBPW) and sewage is conveyed to and treated by the Middlesex County Utility Authority. The Director of the NBPW, Steven Zarecki, issued a will serve letter dated December 30, 2011, indicating that there is sufficient capacity to serve the proposed school facility. The average daily sanitary discharge for the proposed school is estimated to be in the range of 18,600 gallons per day with an estimated peak flow of approximately 51 gallons per day, based on 25 gallons per student (reference N.J.A.C.7:14A 23.3a), and a peaking factor of four. No information was received as to the age of the sewer mains. 3.3 Storm Water The previous school contained storm drainage piping ranging in size, from 4 inch up to 12 inch, to collect site stormwater runoff and convey this runoff to the City s storm collection system. From utility mapping provided by the City Engineer, Dewberry believes that these stormwater drains connect to the inlet located along Comstock Street (Inlet #2112) which is part of the City s stormwater collection system. 2 Q:\ \ \Adm\Reports\Utility Investigation Report\Utility Investigation Analysis Report_Reformatted docx

5 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey Post development runoff shall not exceed the pre development runoff for the 2, 10, 25, 50 and 100 year storms. In order to accomplish this, it is likely that a stormwater detention facility will be required, depending on the amount of proposed impervious coverage which is yet to be determined. This underground stormwater detention facility will be located underneath the parking lot on the northeast corner of the site and will likely connect to the existing inlet located in Comstock Street. Inlets and area drains will be placed on the site to collect and convey the stormwater to the existing municipal system. 3.4 Electric Power & Natural Gas Electrical service is provided to the site from Public Service Electric and Gas (PSE&G) owned overhead transmission pole lines located along Comstock Street. There are two sets of polemounted transformers and a service drop from pole # on Comstock Street. The service drop provided underground electrical service to the previous building. Dewberry s utility survey indicates that there is a 6 gas line along Lee Street, a 4 low pressure gas line along Livingston Avenue, a 3 high pressure gas line along Comstock Street, and a 12 low pressure gas line along Delavan Street. The previous building was served by a 2 gas service from the main located along Comstock Street. PSE&G is the franchised electric and gas utility for the school site. The PSE&G Construction Inquiry Department, provided a will serve letter on November 7, 2011 for both gas and electric services. Once a service application has been made with detailed load requirements, all local and national code requirements are met, and inspections have been conducted, PSE&G will provide service that is in accordance with the PSE&G Standard Terms and Conditions. 3.5 Telephone Telephone service to the previous building was provided to the site from overhead pole lines located along Comstock Street. Ervin Hermandez, and Engineer from Verizon, provided a willserve letter on December 6, 2011 indicating that Verizon will provide service to this location for any and all telecommunication, broadband, or video services deemed necessary by the Redshaw ES and/or the New Brunswick School District. 3.6 Cable TV & Internet Cablevision confirmed that they provide cable TV service to the existing school. Andrew Maass, Cablevision New Build Operation Manager, provided a will serve letter on December 28, 2011 indicating that the anticipated cable TV and internet services can be served by Cablevision. 3 Q:\ \ \Adm\Reports\Utility Investigation Report\Utility Investigation Analysis Report_Reformatted docx

6 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey 4.0 REGULATIONS 4.1 Sanitary Sewer According to the Engineering, Utility, Landscaping Standards prepared by the City of New Brunswick Engineering Department dated June 10, 1991, the Sanitary Sewer system must be designed in accordance with the NJDEP Standards and applicable City Ordinances. The minimum gravity sewer size shall have an 8 diameter and be constructed with PVC pipe SDR 35. The sewer laterals and force mains shall be a minimum of 4 inches in diameter. Since the anticipated flow from the newly constructed school will exceed 8000 gpd, a Treatment Works Approval application will be required for submittal to NJDEP. This permit will require endorsements from the school district, local sewer utility (NBPW), the local sewerage authority (MCUA), and the NJDEP. 4.2 Stormwater Management Stormwater management must comply with City Ordinances and the Engineering, Utility, Landscaping Standards prepared by the City of New Brunswick Engineering Department dated February Gravity storm sewers shall be designed with a minimum velocity of 2.0 fps and a maximum not to exceed pipe manufacturer recommendations. The diameter of the pipes shall be a minimum of 15 inches and the pipes shall be constructed of reinforced concrete, ductile iron, or polyethylene pipe. Major development projects must comply with New Jersey Department of Environmental Protection s stormwater management regulations. New Jersey Administrative Code (N.J.A.C) 7:8 5.2 requires stormwater management measures to be implemented for major development projects. Major development is substantially defined as projects which will result in the disturbance of one (1) or more acres of land or increasing impervious surfaces by one quarter acre or more. The proposed footprint of disturbance will exceed one acre of area, however, the proposed improvements will reduce the amount of impervious surfaces from the previously developed school site condition. Stormwater runoff quantity impacts must be controlled so that the post construction peak runoff rates for the two, 10, and 100 year storm events are 50, 75, and 80 percent, respectively, of the pre construction peak runoff rates. As per N.J.A.C. 7:8 5.4(a)2.ii, the groundwater recharge requirement does not apply to projects within the urban redevelopment area and the project site is located in the Metropolitan Planning Area on the State Plan Policy Map which qualifies as part of the urban redevelopment area. Furthermore per N.J.A.C. 7:8 5.5(a), water quality measures shall only be required if an additional one quarter acre of impervious surface is being proposed on a development site. Since the redevelopment of the site will disturb more than 5,000 sf of land area, a Soil Erosion and Sediment Control Permit must be obtained from the local Soil Conservation District. Since the development will disturb more than one acre of land area, a Request for Authorization (RFA) to discharge stormwater from construction activity must also be filed with New Jersey 4 Q:\ \ \Adm\Reports\Utility Investigation Report\Utility Investigation Analysis Report_Reformatted docx

7 Utility Investigation Analysis Report New Jersey Schools Development Authority New A. C. Redshaw Elementary School New Brunswick, New Jersey Department of Environmental Protection. It is unlikely that any statewide stormwater permits will be required in connection with the redevelopment of the site. Therefore the project will need to comply with the municipal stormwater regulations in effect at the time of approval, in accordance with current NJ Stormwater Management Regulations. 4.3 Water Distribution System As per the Engineering, Utility, Landscaping Standards of the City of New Brunswick, all potable water distribution systems shall be designed in accordance with the requirements of the American Water Works Association, Inc. (AWWA), the New Jersey State Department of Environmental Protection, Division of Water Resources and applicable City ordinances. Since the increase of the average daily water demand of the new facility is greater than 6000 gpd, a Water Allocation permit will be required by the NJDEP Bureau of Safe Drinking Water. This permit will require the endorsement of the school district, the local water utility provider (NBWU) and the NJDEP. 5.0 CONCLUSIONS Based on the investigations and analysis of the existing utility infrastructure, Dewberry concludes that the proposed 135,000 square foot school will be adequately served by these utilities. These utilities include sanitary, storm, water, natural gas, electric, telephone, cable TV, and internet. As final plans for the Redshaw Elementary School are developed, they should be reviewed with the various utility purveyors to confirm locations of service connections, details regarding any necessary site preparation that may be required, and final load and sizing considerations. It is not anticipated that any upgrades to existing utilities are required, in order to satisfy the projected demand from the new school. 5 Q:\ \ \Adm\Reports\Utility Investigation Report\Utility Investigation Analysis Report_Reformatted docx

8 APPENDIX A Site Location & Aerial Photo

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11 APPENDIX B Utility Maps

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15 APPENDIX C Utility Matrix

16 Utility Provider Utility Location/Notes Will-Server Letter Water New Brunswick Water Utility (NBWU) 6 Water main on Delavan 20 Water main on Comstock 4 Fire Hydrants within surrounding area Received Dated Sanitary Sewer New Brunswick Dept. of Public Works Sanitary Sewer mains are located along the centerlines of Lee, Comstock & Delavan Received Dated Cable TV & Internet Cable Vision Confirmed that they presently serve the site. Received via Dated Electric & Gas Public Service Electric & Gas (PSE&G) Overhead electric service from transmission poles along Comstock Gas mains along Lee, Comstock & Delavan Received Dated Telephone Verizon Overhead poles along Comstock which connect to underground lines along Livingston Ave. Received Dated Point of Contact Thomas A. Loughlin 3 rd, City Administrator NBWU 78 Bayard Street New Brunswick, NJ Steven Zarecki, Director Dept. of Public Works 400 Jersey Avenue New Brunswick, NJ Andrew Maass Cablevision New Build Operations Manager 200 Jericho Quad Jericho, NY Mr. Leddy PSE&G Construction Services 751 Walnut Avenue Cranford, NJ (fax) (M-F 8AM-3:30PM) Ervin Hernandez, Engineer Verizon Communication Raritan FMC 6000 Hadley Road South Plainfield, NJ

17 APPENDIX D Will-Serve Letters

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23 APPENDIX E Records of Communication

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