APPENDICES A GEOTECHNICAL CONSULTING SERVICES B MINIMUM STANDARDS FOR LEGAL SURVEY C MINIMUM STANDARDS FOR ARBORIST PRESERVATION PLAN AND REPORT FOR ROW PROJECTS D MINIMUM STANDARDS FOR OPEN HOUSE PRIOR TO CONSTRUCTION E MINIMUM STANDARDS FOR AS-BUILT DRAWINGS 1 ENGINEERING SERVICES GEOENVIRONMENTAL CONSULTING SERVICES TERMS OF REFERENCE INTRODUCTION/PURPOSE The City of Guelph is seeking the services of a Geoenvironmental Consulting Engineering firm(s) or consortia of firms to provide Geoenvironmental services for the proposed Reconstruction Project. Replacement of underground/surface infrastructure: The Geotechnical services includes the determination/confirmation of subsurface soil and groundwater conditions and based on that information, prepare an engineering report with geotechnical recommendations pertaining to excavation and dewatering, pipe bedding, trench backfill, and pavement reconstruction for this project. During the field investigation, the consultant is to visually examine the potential for contaminated or unsuitable materials and conduct further testing/chemical analysis as required to determine the removal and disposal requirements of the material during construction. The geotechnical consultant shall: a) Determine the number and location of boreholes / Monitoring Wells (MWs) to reasonably reflect existing sub-surface conditions. b) Contact and coordinate with the Ontario One Call, the City of Guelph, and others, as appropriate, to mark underground utilities located at the proposed work site, prior to commencement of drilling activities. Coordinate utility locates for the entire length of the project and not just the specific BH/MW location. c) Provide traffic control in accordance with Book 7 of the Ontario Traffic Manual. d) Collect discrete soil samples (minimum of two samples per borehole) from boreholes based on the following criteria: soil sample with the highest indication of potential contamination as evidenced by elevated Photo-Ionization Detector (PID) readings, staining, noticeable odours, or fill materials. The samples be analyzed by a Canadian Association for Laboratory Accreditation (CALA) laboratory for Petroleum Hydrocarbons (Fractions F1 to F4) (PHCs); Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX), Volatile Organic Compounds (VOCs), Polycyclic Aromatic Hydrocarbons (PAHs), and Metals. e) Laboratory Soil Analytical Results be compared to the MOE Table 1 SCS for a full depth background condition and Table 2 SCS for residential/parkland/institutional property use in a potable groundwater condition.Provisional Item - Conduct groundwater monitoring and sampling from all boreholes converted into MWs in a manner consistent with the industry standard. Groundwater samples (one per MW) be analyzed by a CALA accredited laboratory for PHC Fraction F1-F4); BTEX, VOCs, PAHs and Metals. f) Provisional Item - Laboratory Groundwater Analytical Results be compared to the MOE Table 1 SCS for all types of property uses and Table 2 SCS for portable groundwater condition in all types of property uses. g) Provisional Item - Containerize investigative derived waste (IDW), including both soil and groundwater, in 45-gallon metal drums (labelled and sealed) for appropriate disposal or treatment in a licensed landfill facility. Collect composite samples, as required, for waste 2 characterization purposes and have the sample analyzed for Toxicity Characteristic Leaching Procedure (TCLP) analysis to determine waste classification under O. Reg. 347 (as amended). h) Identify all borehole/MW locations to be superimposed on design drawings in geodetic format and UTM coordinates. Geoenvironmental Consultant shall coordinate the BH/MW work with City staff or the City’s Consultant for the road design so that surveyors can pick up the locations and elevations of the BH/MW. This information will be provided to the Geoenvironmental Consultant. i) Complete necessary field investigations/testing to prepare an engineering/environmental report with recommendations pertaining to excavations pipe bedding, ground water control (including test data for dewatering requirements), trench backfill, roadway construction, pavement structure and compaction requirements. j) Provide treatment recommendation for water disposal, test wells, MWs and piezometers to determine pumping rates in support of a Permit To Take Water (PTTW). k) Provisional Item - Consultants to review and assist in completing a PTTW application including meeting with the MOE staff & City consultant. l) Identification of the presence of any potentially contaminated or unsuitable material and recommendations with regard to further testing including applicable chemical testing. Please note that this type of issue would be considered unforeseen and a reasonable cost for testing would be considered. m) Provide $5M liability insurance and required documentation in support of road occupancy permit that is required for drilling. Final Documentation 1. Three (3) hard copies of the completed geoenvironmental investigation report for each road section. 2. One (1) digital copy of the completed geoenvironmental investigation report in PDF format to be provided on a CD prior to the tender. The Geoenvironmental report shall include: • An introduction and background to include a description of the existing road section under investigation. • A description of the investigation procedure and fieldwork. • Subsurface conditions, including existing pavement structure, fill materials, topsoil, laboratory testing and groundwater. • Borehole log sheets undertaken on roads and shoulders, where available. • Borehole location plans. • Grain Size Distribution consisting of grain size analysis tests, and where applicable, particle size (hydrometer) tests. Grain Size distribution shall be plotted against upper and lower band limits for various material such as Granular A and B, in accordance with Ontario Provincial Standards (OPS) materials. • Based on the testing results, the report shall provide a recommendation relating to the suitability of the in-situ material being used for Granular A and B. 3 • Standard Proctor Moisture Density Test Results. • Discussion and recommendations, when applicable, for excavation and dewatering, bedding for storm sewers, ground water control, trench backfill, roadway construction, pavement materials, thicknesses, and compaction requirements. • Geoenvironmental Consultant shall co-ordinate their work and co-operate fully with other consultants on the site. • The geoenvironmental report shall be part of the contract documents. • The consultant should note that the City will provide a Civil 3D drawing file for their use. The City will provide a base plan at the beginning of the project for the installation of the BH/MW’s. Once the BH/MW’s have been installed, the Geoenvironmental Consultant shall coordinate with City staff to ensure that the locations and elevations of the BH/MW’s are surveyed and added to the Engineering drawings. A copy of the Civil 3D drawing file of the proposed works with the BH/MW locations will be provided to the Geoenvironmental Consultant for their use. Bid Format Description Coordination/preparation of road occupancy permit, locates; traffic control, sampling, analysis and report preparation. (Items a, b, c, d, e, i, j, m (excluding item m testing), n and o. Borehole approximately 4.5 m deep or to auger refusal Borehole approximately 4.5 m deep or to auger refusal complete with 50mm monitoring well including flush mount cover Groundwater sampling per Item e (Provisional) including item for traffic control Groundwater analysis and reporting per Item f (Provisional) IDW analysis and reporting per Item h (Provisional) 1.5 m rock coring in one of Boreholes above per Item j (Provisional) Groundwater treatment/disposal recommendation per Item j (Provisional) Preparation of PTTW application per Item k (Provisional) Unit Price Quantity Total $________________ 1 $________________ $________________ 7 $________________ $________________ 1 $________________ $________________ 1 $________________ $________________ 1 $________________ $________________ 1 $________________ $________________ 1 $________________ $________________ 1 $________________ $________________ 1 $________________ Subtotal $________________ HST $________________ Total $________________ 4 ENGINEERING SERVICES MINIMUM STANDARDS FOR LEGAL SURVEY INTRODUCTION The legal survey shall consist of a composite survey plan prepared by an Ontario Land Surveyor. The purpose of the survey plan is to facilitate the overlaying of the property line fabric onto a City topographical survey. CAD DRAWING REQUIREMENTS The drawings must include the following information: • Show front and side property lines including all intersecting streets, private and municipal property, easements, and right-of-ways; • Show all found monuments and control points used; • Place found monuments and control point nodes on a layer labeled PTS-USE; • Coordinate system of plan to be scaled to ground UTM 17-NAD 83 coordinates; • Translate plan coordinates onto a defined base point which is at its true UTM coordinate value and provide the average combined scale factor used; • Monuments are not required to be planted; • Elevations are not required on points within the drawing; • The drawing file shall be in AutoCAD format which is not newer than version 2010; SUBMISSION REQUIREMENTS The Legal Survey submission shall consist of: • One(1) AutoCAD drawing on CD as well as emailed; • 2 sets of hardcopies. • One (1) transmittal per submission. 5 ENGINEERING SERVICES MINIMUM STANDARDS FOR ARBORIST PRESERVATION PLAN AND REPORT FOR ROW PROJECTS INTRODUCTION The Arborist Preservation Plans and Report shall consist of a set of drawings and a report, indicating detailed information about individual trees and associated significant vegetation (i.e., shrubs), including the type and condition of all trees on the public ROW and in the front yard of the adjacent properties up to the front wall of the building or structures. During the preliminary engineering design process, drawings and a report are to be prepared by an arborist for review and comment by City staff, indicating the potential effects of the construction on any trees close to the proposed work including, but not limited to, care methodology and details specific to treatments required to protect and to preserve trees before, during and after construction. Recommendations of tree removal shall also be provided with detailed explanation for consideration by City staff. AN ARBORIST The following Consultants are approved to perform this work for the City of Guelph: • The Landplan Collaborative Ltd • Aboud and Associates Other Consultants will be permitted to perform this work providing that the work is performed by a certified tree expert. A certified tree expert generally includes: • • • • An Arborist qualified by the Ontario Training and Adjustment Board (OTAB) or the Ministry of Colleges and Universities. A Certified Arborist qualified by the International Society of Arborculture (ISA) A Consulting Arborist registered with the American Society of Consulting Arborists (ASCA) A Registered Professional Forester (RPF) PLAN REQUIREMENTS The drawings must indicate the following information: • • • • • • • • • • Scale (eg. 1:100, 1:200, etc) Common and full scientific names of existing tree species Age class Estimated height Trunk diameter (DBH) Estimated canopy spread Summary of health and structural condition Estimated life expectancy Summary and /or discussion of other relevant tree and site information such as soil and drainage characteristics, pests, disease and hazards Tree locations and addresses of all trees within the project limit, including those overhanging from 6 adjacent properties (public and private); Location of all existing and proposed services/utilities above and below ground in proximity to all trees within the project limits; Details of any associated significant vegetation, other than trees, worthy of protection; Recommendations for tree protection and preservation measures (during and after construction) for all trees that are to be retained on site; Details of all trees intended for removal; Details of tree pruning (crown and roots); Location of any plant species identified as an endangered or threatened species. • • • • • • REPORT REQUIREMENTS The report must indicate the following information: • • • • Details of the existing tree species, size and conditions; Details of any associated significant vegetation worthy of protection; Recommendations for tree protection; Details of preservation measures (during and after construction) for all trees that are to be retained on site; Assessment of the impacts of the proposed construction on the tree; Details of all trees recommended for removal; Details of tree pruning (crown and roots); Schedule for site inspection and status reporting to the City by qualified tree experts throughout construction. The Consultant shall provide a price for the cost per visit (including status report) and shall budget for visits during this project. Additional visits shall be charged at this rate; • • • • SUBMISSION REQUIREMENTS The arborist submission shall consist of: • One (1) CD of digital submission (Preferred format is PDF and a copy of the AutoCAD drawing file in a version of Civil 3D not newer than 2012); • 2 sets of hardcopies. • One (1) transmittal per submission. • All drawings and reports must be signed and sealed by An Arborist as defined above. Note: The consultant should note that the City will provide a Civil 3D drawing file for the Consultants use during this assignment. The City will provide a base plan at the beginning of the project for the initial assessment. Once the construction design has been completed by the City (or the City’s Engineering consultant), a copy of the Civil 3D drawing file of the proposed works will be provided to the Consultant for preparation of the recommendations for tree protection, preservation or removal. July 12, 2013 7 ENGINEERING SERVICES MINIMUM STANDARDS FOR OPEN HOUSE PRIOR TO CONSTRUCTION Public Information Centre – Required Displays and Information General • • • Directional Signage into Building Sign in Sheets (pens, paper) Information Package – comment sheet attached Display Boards • • • • Standard Welcome board Purpose of the PIC Background to the project Scope of the project Drawings – Mounted on hard surface of suitable size • • • Coloured plan view (min 1:500 scale for very large projects, preferable 1:250 Scale) of the project showing the proposed final surface works with mounted photographs of each building and roadway Highlighted locations of: road widenings, new or wider sidewalk, bikeways, grading impacts, streetscape issues, trees (with colour used to indicate those impacted and those not impacted by the project), etc. Tree inventory drawing to include: o -assessment of each tree with impacts in Chart form o -replanting program as needed Other Information • • • • • • • • • Typical Road Cross-sections indicating existing and proposed Parking restrictions identified, existing or proposed Traffic Data, if applicable Cross-sections at each driveway available for viewing “What to expect during Construction" – Garbage/Recycling collection Staging Drawing and Preliminary Schedule Identification of Council Approval date Detour Plan, if required Arborist Report 8 ENGINEERING SERVICES MINIMUM STANDARDS FOR AS-BUILT DRAWINGS INTRODUCTION “As-built” drawings constitute the approved engineering and landscape drawings that have been revised to include “as-built” conditions. The “as-built” drawings shall be submitted to the City for the City’s permanent records upon completion of construction and prior to the end of the contractor’s warranty period. As-built information and drawings for municipal infrastructure shall be submitted to the satisfaction of the Engineering Services Department. The “as-built” revisions shall be based upon an “as-built” survey of all the services and works. DRAWING REQUIREMENTS The drawings must indicate the following information: • Service connections – location (swing ties) and invert at the property line; • “As-built” drawing notation (shown in revision column with date); • All construction notes shall be revised to the past tense; • Limit of construction (differentiate using line weights, line types, etc.); • Date of installation of assets; • Material including class, diameter and length, grades and inverts for all pipes and manholes; • Actual material and bedding of assets labeled in profile; • Municipal Address numbers and street names; • True north and construction north indicators; • All property lines, right-of-way lines and easements; • All street trees, sidewalks and driveways, street sign symbols and other street related features; • Drawings scale (typically 1:250 horizontally and 1:25 vertically); • All elevations shall be geodetic. • City Drawing Reference numbers as provided by Engineering Services staff. • Refer to the Engineering Services Drafting Standards Manual for further Record/ Asbuilt drawing requirements. SUBMISSION REQUIREMENTS The “as-built” submission shall consist of: • One (1) CD of digital submission (Preferred format is PDF and a copy of the AutoCAD drawing file in the latest version of Civil 3D); 9 • 2 sets of hardcopies. • One (1) transmittal per submission. ACCEPTANCE OF “AS-BUILT” DRAWINGS The City will review each submitted drawing. Drawings shall be revised if discrepancies are found or insufficient details are provided. Prior to assumption of the plan, a complete set of hardcopy shall be submitted along with the digital files (see submission requirements). 10