Subdivision Planning/Design Part 4: Water Supply and Sanitary Sewers TSYH 4537

Upon successful completion, the student will be able to:

Module 1 - Sanitary Sewer Catchment Area Plans

• Organize catchment areas that would be tributary to a pumping station or area treatment plant.
• Propose a location and alignment for a sanitary sewer showing regard for other servicing requirements.
• Prepare a detailed catchment area plan for a sanitary sewer system.

Module 2 - Sanitary Sewer Plan and Profile Drawings

• State and define the basic preparation required and organization of a set of project drawings.
• Adopt a legend, prepare specific details and incorporate standard notes.
• State specific information that should be shown on the plan and profile drawings.
• Demonstrate the use of sanitary sewer structures and appurtenances.
• Determine the depth of the sewer system.

Module 3 - Quantity of Sanitary Sewage

• Estimate the population based on land use.
• Select peaking factors for the average per capita flow.
• Estimate flows based on the B. C. Plumbing Code for private sewer systems.
• Quantify the total flow including infiltration, commercial and industrial flows.

Module 4 - Selection of Sewer Size and Design Tabulation

• Select the appropriate friction flow formula.
• Incorporate a suitable coefficient for friction and ensure that self cleansing velocities are achieved.
• Tabulate the design computations in a recognized format.
• Summarize the design in a report form.

Module 5 - Water Supply and Pressure Zones

• State different sources of drinking water supply.
• Discuss different methods of providing constant pressure to the consumer.
• Create and utilize pressure zone boundaries.
• Select an alignment for the distribution mains.

Module 6 - Water Distribution Appurtenances

• State different types of watermain materials and joints.
• Illustrate and define the components of a water connection to residential, commercial and industrial properties.
• Recognize different types of valves and state their uses.
• Specify standard fittings and hydrants in accordance with industry standards.
• Locate and size thrust blocks.

Module 7 - Quantity of Flow

• Determine the average and peak residential consumer demands.
• Determine fire flow demand in accordance with the Insurer's Advisory Organization guide to recommended practice.
• Prepare a schematic layout of the proposed system, locate hydrants, check for looping requirements and determine the network demand.

Module 8 - Selection of Watermain Sizes

• Use the Hazen-Williams formula to determine a specific watermain diameter.
• Correlate head loss with flow, pipe diameter, pressure and residual head.
• Use the Hardy-Cross method of network analysis to determine the pipe sizes for a water distribution system.

Module 9 - Watermain Plan and Profile Drawings

• Show a watermain design in plan and profile.
• State specific information that should be shown on the drawing.
• Supplementary detail drawings.

Effective as of Fall 2003