CONSTRUCTION SPECIFICATION FOR SITE PREPARATION FOR PIPELINES, UTILITIES, AND ASSOCIATED STRUCTURES

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1 ONTARIO PROVINCIAL STANDARD SPECIFICATION OPSS.MUNI 490 NOVEMBER 2018 (Formerly OPSS 490, April 2016) Note: The MUNI implemented in November 2018 replaces OPSS 490 COMMON, April 2016 with no technical content changes. CONSTRUCTION SPECIFICATION FOR SITE PREPARATION FOR PIPELINES, UTILITIES, AND ASSOCIATED STRUCTURES TABLE OF CONTENTS SCOPE REFERENCES DEFINITIONS DESIGN AND SUBMISSION REQUIREMENTS - Not Used MATERIALS - Not Used EQUIPMENT - Not Used CONSTRUCTION QUALITY ASSURANCE - Not Used MEASUREMENT FOR PAYMENT - Not Used BASIS OF PAYMENT APPENDICES 490-A Commentary SCOPE This specification covers the requirements of site preparation for the installation of sanitary and storm pipe sewers, pipe culverts and end sections, forcemains and associated appurtenances, watermains and associated appurtenances, and other underground Utilities; maintenance holes, catch basins, ditch inlets, or valve chambers; and any other specified subsurface construction Specification Significance and Use This specification has been developed for use in municipal-oriented Contracts. The administration, testing, and payment policies, procedures, and practices reflected in this specification correspond to those used by many municipalities in Ontario. Use of this specification or any other specification shall be according to the Contract Documents. November 2018 Page 1 of 5 OPSS.MUNI 490

2 Appendices Significance and Use Appendices are not for use in provincial contracts as they are developed for municipal use, and then, only when invoked by the Owner. Appendices are developed for the Owner s use only. Inclusion of an appendix as part of the Contract Documents is solely at the discretion of the Owner. Appendices are not a mandatory part of this specification and only become part of the Contract Documents as the Owner invokes them. Invoking a particular appendix does not obligate an Owner to use all available appendices. Only invoked appendices form part of the Contract Documents. The decision to use any appendix is determined by an Owner after considering their contract requirements and their administrative, payment, and testing procedures, policies, and practices. Depending on these considerations, an Owner may not wish to invoke some or any of the available appendices REFERENCES When the Contract Documents indicate that municipal-oriented specifications are to be used and there is a municipal-oriented specification of the same number as those listed below, references within this specification to an OPSS shall be deemed to mean OPSS.MUNI, unless use of a provincial-oriented specification is specified in the Contract Documents. When there is not a corresponding municipaloriented specification, the references below shall be considered to be the OPSS listed, unless use of a provincial-oriented specification is specified in the Contract Documents. This specification refers to the following standards, specifications, or publications: Ontario Provincial Standard Specifications, Construction OPSS 201 OPSS 206 OPSS 412 OPSS 441 OPSS 706 OPSS 801 OPSS 802 OPSS 805 Clearing, Close Cut Clearing, Grubbing, and Removal of Surface and Piled Boulders Grading Sewage Forcemain Installation in Open Cut Watermain Installation in Open Cut Traffic Control Signing Protection of Trees Topsoil Temporary Erosion and Sediment Control Measures DEFINITIONS For the purpose of this specification, the following definitions apply: Associated Appurtenances means as defined in OPSS 412 for a sewer system, and OPSS 441 for a watermain. November 2018 Page 2 of 5 OPSS.MUNI 490

3 CONSTRUCTION General Site preparatory work shall be performed prior to the installation of the pipelines, Utilities, and associated structures Removal of Existing Signing Removal of existing signing shall be according to OPSS Clearing and Grubbing Clearing and grubbing and related work shall be according to OPSS Shrub and Tree Relocation Shrubs and trees to be relocated shall be protected according to OPSS 801 in their original and final locations. Shrub and tree relocation shall be as specified in the Contract Documents Tree Protection and Pruning Tree protection and pruning shall be according to OPSS Stripping and Stockpiling Topsoil Stripping of topsoil shall be according to OPSS 206. Topsoil shall be removed carefully in the Work Areas and shall not be mixed with subsoil or other materials. Stockpiling of topsoil shall be according to OPSS 802 and as specified in the Contract Documents. Topsoil shall not be placed in or near tree stands, along flood plains, and in areas containing natural wildlife habitats. Perimeter drainage ditches shall be constructed to intercept and divert run-off to adjacent settling ponds. Temporary erosion and sediment control measures shall be according to OPSS 805. Stockpiles shall be protected to ensure minimum environmental interference Removal of Fences and Guide Rails Property owners or occupants shall be given at least 24 hours notice in advance of dismantling fences. Fences and guide rails shall be dismantled, where necessary. All components that are broken, bent, or damaged as a result of the operation shall be removed from the site and replaced with new components. All reusable components shall be stored and protected Management of Excess Material Management of excess material shall be according to the Contract Documents. November 2018 Page 3 of 5 OPSS.MUNI 490

4 BASIS OF PAYMENT Payment at the Contract price for the appropriate tender items for the installation of sanitary and storm pipe sewers, pipe culverts and end sections, forcemains and associated appurtenances, watermains and associated appurtenances, and other underground Utilities; maintenance holes, catch basins, ditch inlets, or valve chambers; and any other specified subsurface construction shall be full compensation for all labour, Equipment, and Material to do the work of site preparation. When the Contract contains separate items for work required by this specification, payment shall be at the Contract prices and according to the specifications for such work. November 2018 Page 4 of 5 OPSS.MUNI 490

5 Appendix 490-A, November 2018 FOR USE WHILE DESIGNING MUNICIPAL CONTRACTS Note: This is a non-mandatory Commentary Appendix intended to provide information to a designer, during the design stage of a contract, on the use of the OPS specification in a municipal contract. This appendix does not form part of the standard specification. Actions and considerations discussed in this appendix are for information purposes only and do not supersede an Owner s design decisions and methodology. Designer Action/Considerations The designer should specify the shrub and tree relocation and planting requirements in the Contract Documents. ( ) The designer may choose to specify a specific location for stockpiled topsoil in the Contract Documents. ( ) If separate items are required to cover the various components of site preparation, they should be included in the Contract Documents. The designer should ensure that the General Conditions of Contract and the 100 Series General Specifications are included in the Contract Documents. Related Ontario Provincial Standard Drawings No information provided here. November 2018 Page 5 of 5 OPSS.MUNI 490