Township Council Meeting — Packet

The length of the trench to be opened or the area of the surface to be disturbed and restored at any time will be limited by the Engineer with regard both to expeditious construction, and convenience to the Owner. New trenches will not be excavated if previous trenches are in need of back-filling or labor is needed to restore the surface of the ground to a safe and proper condition. Trenches for pipes shall be a minimum of 2' wider at the bottom than the outside diameter of the pipe and shall not remain open in excess of 50' in length nor remain open overnight. Excavation for subsurface structure shall also include the excavation required to provide compacted granular bedding as shown in the Construction Details. Whenever the material at the bottom of a bedding or other subsurface structure excavation is soft or otherwise unsuitable, it shall be removed to such depth as the Engineer may require and the space back-filled with Coarse Aggregate Type 57. All excavations for pipelines shall be clear of boulders, rock, masonry, or other similar material which shall be excavated to a level at least six inches below the bottom of the pipe, and carefully refilled with approved material mechanically compacted to provide a stable subbase. Rock or boulders shall be removed from sides of trenches to 12 inches outside the wall of the pipe, unless permission to do otherwise is expressly given. Gravel or stone bedding shall be provided, placed and compacted to the minimum depths when indicated on the plans. The bottom of the trench shall be excavated where the earth is suitable for good foundation to the form and size of the lower portion of the pipe or other structure, so that there shall be full and adequate support for the structure which is to be built on it. Ample excavation shall be made under and around the pipe joints for jointing and to relieve the bell of shearing forces. Excavation, unclassified, shall also include removal of hot mix asphalt pavement overlay, hot mix asphalt pavement, and reinforced and non-reinforced concrete pavement. In addition, excavation, unclassified, shall include the sawcutting of the existing pavement. This shall be at a distance of one foot from the edge of the existing pavement that is to remain in place to form a proper bond between the new pavement and the existing pavement, or as directed by the Engineer. Excavation,

nce of one foot from the edge of the existing pavement that is to remain in place to form a proper bond between the new pavement and the existing pavement, or as directed by the Engineer. Excavation, unclassified, shall also include, as required, the separation and temporary stockpiling of suitable earth materials from excavation and the rehandling of the stockpiled materials for the construction of the roadway embankments, subbase, base courses and backfill if and where directed by the Engineer. Excavation, unclassified, shall also include removal of unsuitable material in cut sections disclosed by proof rolling. Where rock is encountered at the locations of the proposed inlets, manholes, and headwalls, the rock shall be dressed to level beds as directed by the Engineer. If during construction, the contractor encounters buried debris, the contractor will be responsible to remove the same to limits approved by the Township. Disposal of the excavated debris shall be the sole responsibility of the contractor. Unauthorized Excavation Special care will be taken with the final six inches of all excavations. In no case shall the excavation be carried below grade by machine and backfill used to establish the required grade. Where the excavation has been carried below grade through error or because of slides or cave-ins, the contractor shall at his own expense restore such areas with 3/4 inch graded gravel or crushed stone or as directed by the Engineer. If the Contractor excavates below the required grade for structures, the overexcavation shall be filled with material subject to the requirements of the Engineer. The material may include 2000 psi concrete if so ordered by the Engineer. Sheeting and Bracing Where necessary for safety or to prevent disturbance, damage, or settlement of adjacent structures, pipelines, utilities, improvements, or paving, excavations shall be sheeted and braced. 19

Any damage to new or existing structures occurring through settlement, water or earth pressure, or other causes due to inadequate construction procedures of the Contractor in any other manner, shall be repaired by the Contractor at his own expense. Dewatering and Protection from Flooding The Contractor shall dewater the excavations promptly and continuously throughout the progress of the work and shall keep the excavations dry at all times until the structures to be built therein, are completed. Where work is to be performed below groundwater level, the Contractor shall provide, operate and maintain dewatering facilities sufficient to maintain the excavation free from groundwater for the time required to complete the work in the proper workmanlike manner. The Contractor shall protect uncompleted work from flooding during storms or from other causes. All pipelines or structures not stable against uplift during construction or prior to completion shall be thoroughly braced or otherwise protected. All necessary precautions shall be taken to prevent disturbance of, and to properly drain, the areas upon which concrete is poured, and upon which pipe is to be laid. All concrete shall be kept dry for one month after pouring except curing. All water pumped and bailed from the trench or other excavation shall be conveyed in a proper manner through an approved settling basin and to a suitable point of discharge by the Contractor at his own expense. Construction Safety The Contractor shall follow the various requirements contained in the Construction Safety Code, latest edition, as prepared by the State of New Jersey, Department of Labor and Industry, Bureau of Engineering and Safety. In addition, the Contractor shall comply with the "Construction Safety and Health Regulations" of the Occupational Safety and Health Administration, Title 29, Chapter XVII, Part 1926 or latest revision. Protection of Existing Pipelines and Structures Care shall be taken not to relocate without the consent of the Engineer any sewers, drains, culverts, water or gas pipes or structures near them that could affect their stability. All utilities shall be securely hung, braced, or supported in place until the work is completed. Whenever it is necessary to interfere with said structures or pipelines, the Contractor shall maintain their services at his own expense and repair all damages

ed in place until the work is completed. Whenever it is necessary to interfere with said structures or pipelines, the Contractor shall maintain their services at his own expense and repair all damages caused by his act or neglect of work. The integrity of all pipelines and structures shall be maintained throughout the construction and same shall be left in an equivalent condition or improved condition after completion of construction. Adequate precautions shall be taken to prevent settlement of existing improvements. In case water pipes, gas pipes, conduits, or other utilities become damaged or broken in the prosecution of the work, the Contractor shall give immediate notice to the proper authorities and shall be responsible for any damage to persons or property caused by such breaks. Failure to give prompt notice to the authorities shall make the Contractor responsible for any needless loss of water or gas, or for interruption of services. When house connections or service pipes supplying water or gas as well as underground sprinkler systems are broken during construction, the Contractor shall repair them at his own expense. Delays, such as would result in adjoining buildings having to do without water or gas for a needlessly long period, will not be tolerated. The Municipality reserves the right to remedy such delays by ordering outside parties to make such repairs at the expense of the Contractor. 20

If so. directed in writing, the Contractor shall make permanent changes in the location of water mains if they are obstructing the new structures to be built. The cost of such changes will be paid for as extra work based on the valuation made by the Engineer and depend on his decision as to whether the work done is or is not included in the work required and bid for by the Contractor under the contract. In rendering all such accounts, the Contractor shall itemize both the labor and materials involved and provide other information as may be required by the Engineer. Underground Objects and Utilities Information as to the location of existing utilities has been collected from various sources, but the results of such investigations are shown on the contract drawings and are not guaranteed as to accuracy. The Contractor is particularly directed to the fact that underground objects or material location, elevation, or type is not warranted to be approximately correct (nor can they be assumed to be the only subsurface objects or materials which may be encountered in the work), The Contractor shall make all necessary investigations to satisfy himself as to the existing conditions Prior to bidding work, including the locating of existing underground sprinkler systems. 202.02 MATERIALS 202.03 CONSTRUCTION 202.03.01 Stripping This Article of the Standard Specifications is amended as follows: Strip vegetation and underlying soil to a depth of 4 to 6 inches below the existing ground surface. Topsoil must be stored on the job site. The removal of excess topsoil from the project must not be done until completion of all topsoiling work and upon the approval of the Engineer. The contractor shall make his own arrangements for storing topsoil materials. If topsoil materials are to be stored on private property, the contractor shall obtain and deliver to the Engineer written releases from the owners of the property for the storage. Before trench excavation, the Contractor shall strip the existing topsoil and store for future use. 202.03.02 Excavating Test Pits 202.03.03 Excavating Unclassified Material A. Excavating The following is added to this Article of the Standard Specifications: Excavation shall be carried out to the elevations or depths shown on the plans. The contractor shall take special precautions necessary to prevent damaging any existing

the Standard Specifications: Excavation shall be carried out to the elevations or depths shown on the plans. The contractor shall take special precautions necessary to prevent damaging any existing utilities. He shall be held liable for repairs of any damage done to these utilities. 1. Wet Areas gz Foundation and Bridge Areas 3. Rock Areas This Article of the Standard Specifications is amended as follows: Delete the third paragraph of this article and substitute the following: 21

If it is determined that in-place stabilization is required, use rock bolting or other stabilization techniques as directed. Blasting is prohibited. The following is added to this subsection: 4. SAWCUT This work shall consist of making longitudinal and transverse cuts in existing pavement as directed by the engineer. Sawcuts shall be made with an approved power saw full depth in order to prevent damage to the existing pavement, sidewalk, driveways or curbs and to provide a neat edge for the adjacent proposed sidewalk, driveways or curbs as shown on the plans or as directed by the engineer. 202.04 MEASUREMENT AND PAYMENT THIS SUBSECTION IS CHANGED TO: The Township will measure and make payment for Items as follows: Item Pay Unit EXCAVATION, UNCLASSIFIED (IF AND WHERE DIRECTED) CUBIC YARD EXCAVATION, TEST PIT (IF AND WHERE DIRECTED) CUBIC YARD REMOVAL OF PAVEMENT, UP TO 6" DEEP (IF AND WHERE DIRECTED) SQUARE YARD EXCAVATION, BASE REPAIR 12” DEEP (IF AND WHERE DIRECTED) SQUARE YARD ROCK EXCAVATION (IF AND WHERE DIRECTED) CUBIC YARD The contractor may discover that existing roadway may contain existing concrete base or cobble stone and shall make all necessary rquirements for its removal where necessary. The cost for this work shall be included in the cost of excavation, unclassified. The quantity for roadway excavation will be measured by the cubic yard. The Engineer or the Engineer's representative must be present during the excavation to determine and record the limits of roadway excavation. Any over excavation completed without the supervision of the Engineer or the Engineer's representative will not be considered for payment. THE FOLLOWING SECTION IS ADDED TO THE SPECIFICATIONS: SECTION 204 - DISPOSAL OF CONTAMINATED SOIL 204.01 GENERAL The specifications outlined herein are for the testing, removal and disposal of contaminated soils that may be encountered during the excavation and site grading. Any materials that are suspected to contain contamination shall be tested, classified, and disposed in accordance with the applicable local and State regulations. If required, the Township's environmental consultant, Matrix New World Engineering Inc. (Matrix) would provide available waste classification analyses. All necessary soil testing will be performed by the Township Engineer/Matrix. A Licensed Site Remediation Professional (LSRP) shall be

. (Matrix) would provide available waste classification analyses. All necessary soil testing will be performed by the Township Engineer/Matrix. A Licensed Site Remediation Professional (LSRP) shall be retained if required by NJDEP regulations. The testing results will be provided to the contractor for proper handling and disposal of contaminated soils to an approved disposal facility. This project is not currently subject to the NJDEP Site Remediation Program. Contaminated or impacted soils encountered during construction shall be managed in accordance with applicable waste handling and disposal regulations. If conditions are encountered that indicate a discharge has occurred or require remediation under NJDEP regulations, the Engineer will notify NJDEP and retain a LSRP as required. 22

204.02 WORK INCLUDED A. It is the Contractor's responsibility to furnish all labor, permits, supplies, tools and logistical coordination necessary to complete the removal of all contaminated materials. The Contractor shall also provide to the Owner a written plan for compliance with this section prior to construction and provide an accurate verification of material quantities at the Site. B. Suspected contaminated soils shall be characterized by the Engineer according to the type and amount of contamination present in the soil: (1) soil that contains hazardous waste, and (2) soil that contains nonhazardous waste (ID 27 when disposed of). Cc. All sampling procedures and analytical methods must conform to the most recent guidance, including the NJDEP Field Sampling Procedures Manual, the requirements of the approved receiving disposal facility, and if necessary, the CERCLA and RCRA sampling guidelines and protocols. Soil samples shall be collected from the excavated stockpile for waste characterization purposes. Proposed analytical parameters and appropriate methods must meet the requirements of the disposal facility as well as the requirements above. D. At a minimum, all potentially contaminated soils must be staged by the contractor on an impervious surface and covered with waterproof material (i.¢., tarpaulin or 10 mil plastic sheeting). Stockpiles shall be of manageable size. The containment must be maintained for the duration of the staging period to prevent contaminant volatilization, runoff, leaching, or fugitive dust emissions, Access to the area shall be restricted to authorized personnel only. The stockpiled soil shall be covered with similar plastic sheeting that shall be held securely in place. The plastic sheeting shall be maintained or replaced as needed for as long as the material remains stockpiled. Stockpiles shall be located where excavation equipment can place the material directly from the excavation onto a stockpile. The ground surface on which the geomembrane is to be placed shall be free of rocks greater than 0.5 inches in diameter and any other object which could damage the membrane. The contractor shall periodically maintain the plastic covering during soil classification period, Stockpiled materials shall also be encircled by staked haybales or silt fence. Where excavations must be left opened and unattended until backfill

plastic covering during soil classification period, Stockpiled materials shall also be encircled by staked haybales or silt fence. Where excavations must be left opened and unattended until backfill due to associated testing requirements and where the same is approved by the Engineer and its representative, the excavations shall be suitably barricaded and other devices shall be employed as required to prevent unauthorized entry into the work area. Contaminated soil shall be stored in such a manner that the soil is completely isolated from the environment and any hazardous materials in the soil are prevented from contact with or being released into the environment. Periodic inspections shall be made by the Contractor to ensure that the stockpiled soils are not released to the surrounding environment by erosion. Stockpiled soil shall not be stockpiled for more than 28 days. E. Security and public access must be considered when selecting a location for stockpiling of any potentially contaminated soils. Excavation and staging of any potentially contaminated soil must be performed using methods that minimize the disturbance of the soil. F. Ensure that dust generated during alll work is controlled in accordance with Federal, State, and local regulations. Implement OSHA requirements for suppression of contaminated dust Conduct monitoring of worker exposures in a manner to comply with the monitoring requirements of 29 CFR 1910 and 29 CFR 1926. 23