Peak Dry Weather Flow definition

Peak Dry Weather Flow means the arithmetic mean of the maximum peak flow rates sustained over some period of time (for example three hours) during the maximum 24-hour dry weather period. Dry weather period is defined as period of little or no rainfall.
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Peak Dry Weather Flow means the annual average of the highest flow value for each day of Dry Weather Flow, in MGD. Peak Dry Weather Flow shall be calculated by summing the highest flow values for each day of Dry Weather Flow within a calendar year for which such values can be observed or estimated, and then dividing that figure by the number of days of Dry Weather Flow within that calendar year in which such values are observed or estimated.
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Peak Dry Weather Flow means the arithmetic mean of the maximum peak flow rates sustained over some
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Examples of Peak Dry Weather Flow in a sentence

  • Design flows usually consider Peak Dry Weather Flow (PDWF) but Peak Wet Weather Flow (PWWF) can also be simulated.

  • The PDWF (Peak Dry Weather Flow) is estimated at 35.37 l/s and when considering an infiltration rate of 15% the PWWF (Peak Wet Weather Flow) is estimated at 40.68 l/s.

  • Three flow conditions were analyzed in this study, which were Average Dry Weather Flow (ADWF), Peak Dry Weather Flow (PDWF), and Peak Wet Weather Flow (PWWF) conditions.

  • The PWWF flow shall be the sum of the Peak Dry Weather Flow (PDWF), infiltration flow, and pumped flow.

  • Sanitary sewers are to be designed for Peak Wet Weather Flow (PWWF) which is the sum of the Peak Dry Weather Flow (PDWF) and infiltration.

  • In no instance shall the dry weather flow peaking factor be less than 1.5. Peak Dry Weather Flow (PDWF): The peak dry weather flow for each sewer main reach shall be determined by multiplying the average dry weather flow by the appropriate peaking factor (Note that peak dry weather flows are not algebraically cumulative as routed through the sewer system, i.e. the peak dry weather flow at any point shall be based on the equivalent population in the basin to that point (Ref.

  • Design flows usually consider Peak Dry Weather Flow but Peak Wet Weather Flow can also be simulated.

  • Based upon a flow calculation document provided by the City, the design Average Dry Weather Flow (ADWF) for the station is 196 l/s (3100 USGPM) and the Peak Dry Weather Flow (PDWF) is 469 l/s (7440 USGPM).

  • Although sufficient treatment capacity exists, due to capacity constraints, a Peak Dry Weather Flow (“PDWF”) of 16 l/s only can be accommodated by the current network, and the full Peak Dry Weather Flow can only be accommodated once the gravity mains have been upgraded.

  • The Peak Dry Weather Flow (PDWF) = Peaking factor (“d”) x SF + GWI.

Related to Peak Dry Weather Flow

  • Cold Weather Alert means the notice that PJM provides to PJM Members, Transmission Owners, resource owners and operators, customers, and regulators to prepare personnel and facilities for expected extreme cold weather conditions.

  • Hot Weather Alert means the notice provided by PJM to PJM Members, Transmission Owners, resource owners and operators, customers, and regulators to prepare personnel and facilities for extreme hot and/or humid weather conditions which may cause capacity requirements and/or unit unavailability to be substantially higher than forecast are expected to persist for an extended period.

  • Peak flow means the maximum instantaneous rate of flow of water at a particular point resulting from a storm event.

  • Generator Maintenance Outage means the scheduled removal from service, in whole or in part, of a generating unit in order to perform necessary repairs on specific components of the facility, if removal of the facility meets the guidelines specified in the PJM Manuals.

  • Ultra Low Sulfur Diesel Fuel means diesel fuel that has a sulfur content of no more than fifteen parts per million.

  • low voltage means the set of nominal voltage levels that are used for the distribution of electricity and whose upper limit is generally accepted to be an a.c. voltage of 1000V ( or a d.c. voltage of 1500 V). [SANS 1019]

  • Cannabis testing facility means an entity registered by

  • Generator Planned Outage means the scheduled removal from service, in whole or in part, of a generating unit for inspection, maintenance or repair with the approval of the Office of the Interconnection in accordance with the PJM Manuals.

  • 2 Wire Analog Voice Grade Loop or “Analog 2W” provides an effective 2-wire channel with 2-wire interfaces at each end that is suitable for the transport of analog Voice Grade (nominal 300 to 3000 Hz) signals and loop-start signaling. This Loop type is more fully described in Verizon Technical Reference (TR)-72565, as revised from time-to-time. If “Customer-Specified Signaling” is requested, the Loop will operate with one of the following signaling types that may be specified when the Loop is ordered: loop-start, ground-start, loop- reverse-battery, and no signaling. Customer specified signaling is more fully described in Verizon TR-72570, as revised from time-to- time. Verizon will not build new facilities.

  • INTER-CONNECTION POINT/ DELIVERY/ METERING POINT means a single point at 220kV or above, where the power from the Project(s) is injected into the identified ISTS Substation (including the dedicated transmission line connecting the Projects with the substation system) as specified in the RfS document. Metering shall be done at this interconnection point where the power is injected into. For interconnection with grid and metering, the WPDs shall abide by the relevant CERC/ SERC Regulations, Grid Code and Central Electricity Authority (Installation and Operation of Meters) Regulations, 2006 as amended and revised from time to time.

  • Generator Forced Outage means an immediate reduction in output or capacity or removal from service, in whole or in part, of a generating unit by reason of an Emergency or threatened Emergency, unanticipated failure, or other cause beyond the control of the owner or operator of the facility, as specified in the relevant portions of the PJM Manuals. A reduction in output or removal from service of a generating unit in response to changes in market conditions shall not constitute a Generator Forced Outage.

  • Double check valve assembly means an assembly composed of two single, independently acting, check valves including tightly closing shutoff valves located at each end of the assembly and suitable connections for testing the water tightness of each check valve.

  • Dry cleaning facility means an establishment with one or more dry cleaning systems.

  • Dry cleaning fluid means any non-aqueous liquid product designed and labeled exclusively for use on: fabrics which are labeled "for dry clean only", such as clothing or drapery; or S-coded fabrics. Dry cleaning fluid includes, but is not limited to, those products used by commercial dry cleaners and commercial businesses that clean fabrics such as draperies at the customer's residence or work place. Dry cleaning fluid does not include spot remover or carpet and upholstery cleaner. For the purposes of this definition, S-coded fabric means an upholstery fabric designed to be cleaned only with water-free spot cleaning products as specified by the Joint Industry Fabric Standards Committee.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.

  • Service Switching Point (SSP) is a telephone central office switch equipped with a Signaling System 7 (SS7) interface.

  • Manual Load Dump Warning means a notification from PJM to warn Members of an increasingly critical condition of present operations that may require manually shedding load.

  • Generation Service means the sale of electricity, including ancillary services such as the provision of reserves, to a Customer by a Competitive Supplier.

  • Wind Turbine means a mechanical/electrical system that converts the kinetic energy of blowing wind into mechanical or electric power.

  • Single Phase Aerosol Air Freshener means an aerosol air freshener with the liquid contents in a single homogeneous phase and which does not require that the product container be shaken before use.

  • Custom Local Area Signaling Service Features (CLASS) means certain call-management service features that are currently available from SBC-13STATE’s local networks. These could include: Automatic Call Back; Automatic Recall; Call Trace; Caller Identification and related blocking features; Calling Number Delivery; Customer Originated Trace; Distinctive Ringing/Call Waiting; Selective Call Forward; and Selective Call Rejection.

  • 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.

  • Interconnection Activation Date means the date that the construction of the joint facility Interconnection arrangement has been completed, trunk groups have been established, joint trunk testing is completed and trunks have been mutually accepted by the Parties.

  • Compression ignition engine means an internal combustion engine with operating characteristics significantly similar to the theoretical diesel combustion cycle. The regulation of power by controlling fuel supply in lieu of a throttle is indicative of a compression ignition engine.

  • Peak tube potential means the maximum value of the potential difference across the x-ray tube during an exposure.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.