Design flow definition

Design flow means the maximum volume of sewage a residence, structure, or other facility is estimated to generate in a twenty-four-hour period. It incorporates both an operating capacity and a surge capacity for the system during periodic heavy use events. The sizing and design of the on-site sewage system components are based on the design flow.
Design flow means the daily flow rate a facility is designed to accommodate on a sustained basis while satisfying all permit discharge limitations and treatment and operational requirements. The design flow incorporates peaking and safety factors to ensure sustained, reliable operation.

Examples of Design flow in a sentence

Design flow rates for establishments not identified below shall be determined using available flow data, water-using fixtures, occupancy or operation patterns, and other measured data.

Design flow rate shall be based upon delivering two feet to five feet of static pressure head at the distal end of all lateral lines.

Design flow depths at the road centerline for all crossings shall not exceed six (6) inches during the peak flows generated by the 100-year, 24-hour design storm, using planned land use conditions for the entire contributing watershed area.

In each case, I also added a confidence rating: “How confident are you about your an- swer?” (Scale: 0 - 10).

Design flow: 126 gallons per day or 70 percent of the base design flow, whichever is greater, must be used as the minimum design flow for sizing a single-family grey wastewater disposal field.


More Definitions of Design flow

Design flow means the average annual flow or average daily flow specified in an approved facilities plan or approved plans and specifications, the flow specified in a WPDES permit, or the flow required to meet performance standards.
Design flow means the maximum volume of sewage a residence, structure, or other facility is estimated to generate in a twenty-four-hour period. It incorporates both an operating capacity and a surge capacity for the LOSS during periodic heavy use events.
Design flow means the flow rate for which an on-site liquid waste system must be designed in order to assure acceptable system performance, assuming the use of conventional plumbing fixtures;
Design flow means the flows, set by section 1-504 of these Rules and Section 2.2 of the Vermont Water Supply Rules, that establish the size of the potable water supply and wastewater system serving a lot, building or structure, or campground.
Design flow means the average daily volume of wastewater which a water pollution control
Design flow means the average daily flow to the treatment works.
Design flow means the capacity at which a treatment works is designed to reliably treat an average 24-hour influent flow rate, assessed over a period of a month for all months of operation within a year, including appropriate peak factors provided to meet applicable reliability and redundancy requirements. The average 24-hour influent flow rate shall be based on projected estimates of influent flow to be received by the treatment works.