Documentation

Site Description

• Location (key plan, municipal address, nearest roads, watershed and subwatershed);
• Existing Conditions (land use on site and surrounding areas);
• Natural Heritage features;
• Proposed Conditions;
• Drainage Area (for the site, tributary and watershed);
• Watercourses, wetlands present on site, and type (permanent or intermittent);
• Drainage patterns and ultimate drainage location/outfall;

Background Information

• Pre-submission meeting verification;
• Reports from pre-consultation with MOECC and other agencies (especially related LID credits);
• Watershed plans;
• Sub-Watershed plans;
• Master drainage plans (MDPs);
• Other previous reports and relevant SWM requirements;
• Existing models;
• Geotechnical report;
• Hydrogeological report;

Figures and drawings

• Location plan in the report;
• Key Plan on the drawings;
• All watercourses and names of watercourses shown on all figures and drawings;
• Pre-development and post-development drainage plans for hydrologic model(s) which include:
  • Existing contours;
  • Drainage direction (minor and major system);
  • Catchments ID's;
  • Areas and imperviousness;
  • Uncontrolled areas;
  • 100 year capture;
  • Site outlets; and
  • SWM facility location and associated tributary areas;
• Model schematics;
• Storm drainage, grading and general servicing plans;
• SWM facility design drawings and details;
• Erosion and sediment control plans;

Floodplain mapping and documentation minimum requirements

1. Hydraulic sections with regulated floodplain elevations and cross-section identification;
2. Existing and proposed floodplain delineation;
3. Topographic information including elevations and contours;
4. Conveyance structures including dams, bridges, culverts and weirs;
5. Man-made structures as applicable including buildings, roads, railways and trails;
6. Natural reservoirs or natural storage areas;
7. Spills analysis as applicable;
8. Cut/fill analysis in the regulated area as applicable;
9. Natural features such as watercourses and wetlands;
10. Floodplain mapping and supporting documentation signed and stamped by a P.Eng.

Survey Documentation Minimum Requirements

For any submission which contains drawings or figures that present survey information, the following list of minimum requirements must be included:

1. Document with text descriptor identifying overall approach and methodology;
2. Drawing/Figure Title;
3. Date, and Revision List where applicable;
4. Legible Scale and North direction arrow;
5. OLS Surveyor Name and contact information, as applicable;
6. Geodetic benchmark data used in survey, as applicable;
7. Available survey data for topographic surface, structures, features, etc.;
8. Structures invert, obvert elevations and dimensions as applicable;
9. Bathymetry as applicable;
10. Documentation to support reported data accuracy;
11. Methodology for survey data collected i.e. Total Station, GIS, Rod and Level;
12. Photo log of structures survey including upstream, downstream and structures completed with structure survey;
13. Drawings and / or figures to be submitted both electronically and in hard copy as requested;
14. Digital copy of the survey data when applicable; and
15. Submission components to be stamped and signed by an OLS, P.Eng. or C.E.T. as relevant.

Geospatial Data Submission Minimum Requirements

For a submission which contain drawings, figures, reports, modelling and / or memos that present geospatial information and its analysis; the following list of minimum requirements must be included:

1. Text summary identifying methodology and software used in geospatial analysis;
2. Acquisition type i.e. LIDAR, orthophotos, etc.;
3. Date of data acquisition;
4. Name of supplier of digital information and their contact information;
5. Quality Assurance / Quality Control methodology for geo-spatial as applicable;
6. Data Co-ordinate system;
7. Data Projection;
8. Data Horizontal and vertical resolution;
9. Data Accuracy for each axis as applicable;
10. Description of grid resolution;
11. Drawing and / or figure scale identified as applicable;
12. Contours presented at minimum 0.5 m increments;
13. Orthophoto Elevation Data i.e. study area break lines and DTM points;
14. LIDAR Elevation Data i.e. study area point cloud (as applicable);
15. Digital Elevation Model (DEM) as applicable;
16. Description of modifications to surface including adjustments to the TIN from other sources (i.e. surveyed culverts, new infrastructure invert and obvert elevations etc.);
17. Flood limit data;
18. Drawings and / or figures to be submitted both electronically and in hard copy when requested;
19. In modelling files and documentation to maintain existing watercourse naming conventions were applicable;
20. Projected Co-ordinate system: Preferably NAD 1983 UTM Zone 17N;
21. Accepted Original Geospatial Data file format: File Geodatabase or Shapefiles; and
22. Submission components to be stamped and signed by an OLS, P.Eng. or C.E.T. as relevant.

The drainage area of one or more contributing watercourses to a river.

The drainage area of a river.

An area of land that drains into a river or a lake. The boundary of a watershed is based on the elevation (natural contours) of a landscape.

The point, location, or structure where wastewater or drainage discharges from a sewer pipe, ditch or other conveyance to a receiving body of water.

Low Impact Development. A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting.

Stormwater Management

refers to the characteristics and functions of a system prior to urban development.

Natural or artificial means of intercepting and removing surface or subsurface water (usually by gravity).

Soil, sand and minerals washed from land into water, usually after rain. They pile up in reservoirs, rivers and harbors, destroying fish-nesting areas and holes of water animals and cloud the water so that needed sunlight might not reach aquatic plans. Careless farming, mining and building activities will expose sediment materials, allowing them to be washed off the land after rainfalls.

The area adjacent to a stream that is, on average, inundated once a century

(a) A natural well-defined channel produced wholly or in part by a definite flow of water and through which water flows continuously or intermittently. Also, a ditch, canal, aqueduct, or other artificial channel for the conveyance of water to or away from a given place, as for the draining of a swamp.

(b) A stream or current of water. Legally, a natural stream arising in a given drainage basin but not wholly dependent for its flow on surface drainage in its immediate area, flowing in a channel with a well-defined bed between visible banks or through a definite depression (as a ravine or swamp) in the surrounding land, having a definite and permanent periodic supply of water (the stream may be intermittent), and usually, but not necessarily having a perceptible current in a particular direction and discharging at affixed point into another body of water.

(c) A legal right permitting the use of a flow of a stream (especially of one flowing through one’s land) or the receipt of water discharged upon land belonging to another.