Florida Administrative Code › 62 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 62 - Departmental › Chapter 62-6 - STANDARDS FOR ONSITE SEWAGE TREATMENT AND DISPOSAL SYSTEMS › Part I - General Provisions except those specific to Parts II and IV › Section 62-6.008 - System Size Determinations

Current through Reg. 50, No. 138; July 16, 2024
(1) Minimum
				  design flows for systems serving any structure, building or group of buildings
				  shall be based on the estimated daily sewage flow as determined from Table I or
				  the following:
(a) The Department shall
				  accept, for other than residences and food operations, metered water use data
				  in lieu of the estimated sewage flows set forth in Table I. For metered flow
				  consideration, the applicant shall provide authenticated monthly water use data
				  documenting water consumption for the most recent 12 month period for at least
				  six similar establishments. Similar establishments are those like size
				  operations engaged in the same type of business or service, which are located
				  in the same type of geographic environment, and which have approximately the
				  same operating hours. Metered flow values will not be considered to be a
				  reliable indicator of typical water use where one or more of the establishments
				  utilized in the sample has exceeded the monthly flow average for all six
				  establishments by more than 25 percent or where the different establishments
				  demonstrate wide variations in monthly flow totals. When metered flow data is
				  accepted in lieu of estimated flows found in Table I, the highest flow which
				  occurred in any month for any of the six similar establishments shall be used
				  for system sizing purposes. Except for food operations which exceed domestic
				  sewage waste quality parameters as defined in subsection
				   62-6.002(15),
				  F.A.C., where an existing establishment which has been in continuous operation
				  for the previous 24 months seeks to utilize its own metered flows, the
				  applicant shall provide authenticated monthly water use data documenting water
				  consumption for the most recent 24 month period. The highest monthly metered
				  flow value for an existing establishment shall be used for system sizing
				  purposes.
(b) When onsite systems
				  use multiple strategies to reduce the total estimated sewage flow or the
				  drainfield size, only one reduction method shall be credited.
TABLE I FOR SYSTEM DESIGN
								ESTIMATED SEWAGE FLOWS
TYPE OF ESTABLISHMENT
GALLONS PER DAY
COMMERCIAL:
Airports, Bus Terminals, Train Stations, Port
								& Dock Facilities, Bathroom Waste Only
(a) Per passenger
4
(b) Add per employee per 8 hour shift
15
Barber & beauty shops per service chair
75
Bowling alley bathroom waste only per lane
50
Country Club
(a) Per resident
100
(b) Add per member or patron
25
(c) Add per employee per 8 hour shift
15
Doctor and Dentist Offices
(a) Per practitioner
250
(b) Add per employee per 8 hour shift
15
Factories, Exclusive of Industrial Wastes
								Gallons Per Employee Per 8 Hour Shift
(a) No showers provided
15
(b) Showers provided
25
Flea Market Open 3 or Less Days Per
								Week
(a) Per non-food service vendor space
15
(b) Add per food service establishment using single
								service articles only per 100' Square feet of floor space
50
(c) Per limited food service establishment
25
(d) For flea markets open more than 3 days per week
								estimated flows shall be doubled
Food Operations
(a) Restaurant operating 16 hours or less per day
								per seat
40
(b) Restaurant operating more than 16 hours per day
								per seat
60
(c) Restaurant using single service articles only
								and operating 16 hours or less per day per seat
20
(d) Restaurant using single service articles only
								and operating more than 16 hours per day per seat
35
(e) Bar and cocktail lounge per seat
20
Add per pool table or video game
15
(f) Drive-in restaurant per car space
50
(g) Carry out only, including caterers
1. Per 100' square feet of floor space
50
2. Add per employee per 8 hour shift
15
(h) Institutions per meal
5
(i) Food Outlets excluding deli's, bakery, or meat
								department per 100' square feet of floor space
10
1. Add for deli per 100' square feet of deli floor
								space
40
2. Add for bakery per 100' square feet of bakery
								floor space
40
3. Add for meat department per 100' square feet of
								meat department floor space
75
4. Add per water closet
200
Hotels & Motels
(a) Regular per room
100
(b) Resort hotels, camps, cottages per room
200
(c) Add for establishments with self service
								laundry facilities per machine
750
Mobile Home Park
(a) Per single wide mobile home space, less than 4
								single wide spaces connected to a shared onsite system
250
(b) Per single wide mobile home space, 4 or more
								single wide spaces are connected to a shared onsite system
225
(c) Per double wide mobile home space, less than 4
								double wide mobile home spaces connected to a shared onsite system
300
(d) Per double wide mobile home space, 4 or more
								double wide mobile home spaces connected to a shared onsite system
275
Office Building
Per employee per 8 hour shift, or
15
Per 100' square feet of floor space, whichever is
								greater
15
Transient Recreational Vehicle
								Park
(a) Recreational vehicle space for overnight stay,
								without water and sewer hookup per vehicle space
50
(b) Recreational vehicle space for overnight stay,
								with water and sewer hookup per vehicle space
75
Service Stations Per Water
								Closet
(a) Open 16 hours per day or less
250
(b) Open more than 16 hours per day
325
Shopping centers without food or laundry per square
								foot of floor space
0.1
Stadiums, race tracks, ball parks per seat
4
Stores per bathroom
200
Swimming and bathing facilities, public per
								person
10
Theatres and Auditoriums, per seat
4
Veterinary Clinic
(a) Per practitioner
250
(b) Add per employee per 8 hour shift
15
(c) Add per kennel, stall or cage
20
Warehouse
(a) Add per employee per 8 hour shift
15
(b) Add per loading bay
100
(c) Self-storage, per unit (up to 200 units)
1
Add 1 gallon for each 2 units or fraction thereof,
								for over 200 units, and shall be in addition to employees, offices or living
								quarters flow rates.
INSTITUTIONAL:
Churches per seat which includes kitchen wastewater
								flows unless meals prepared on a routine basis
3
If meals served on a regular basis add per meal
								prepared
5
Hospitals per bed which does not include kitchen
								wastewater flows
200
Add per meal prepared
5
Nursing, rest homes, adult congregate living
								facilities per bed which does not include kitchen wastewater flows
100
Add per meal prepared
5
Parks, Public Picnic
(a) With toilets only per person
4
(b) With bathhouse, showers & toilets per
								person
10
Public institutions other than schools and
								hospitals per person which does not include kitchen wastewater flows
100
Add per meal prepared
5
Schools Per Student
(a) Day-type
10
(b) Add for showers
4
(c) Add for cafeteria
4
(d) Add for day school workers
15
(e) Boarding-type
75
Work/construction camps, semi-permanent per
								worker
50
RESIDENTIAL:
Residences
(a) Single or multiple family per dwelling
								unit
1 Bedroom with 750' square feet or less of building
								area
100
2 Bedrooms with 751-1, 200' square feet of building
								area
200
3 Bedrooms with 1, 201-2, 250' square feet of
								building area
300
4 Bedrooms with 2, 251-3, 300' square feet of
								building area
400
For each additional bedroom or each additional 750'
								square feet of building area or fraction thereof in a dwelling unit, system
								sizing shall be increased by 60 gallons per dwelling unit.
(b) Other per occupant
50
Footnotes to Table I:
1. For food operations, kitchen wastewater
				  flows shall normally be calculated as 66 percent of the total establishment
				  wastewater flow.
2. Systems serving
				  high volume establishments, such as restaurants, convenience stores and service
				  stations located near interstate type highways and similar high-traffic areas,
				  require special sizing consideration due to expected above average sewage
				  volume. Minimum estimated flows for these facilities shall be 3.0 times the
				  volumes determined from the Table I figures.
3. For residences, the volume of wastewater
				  shall be calculated as 50 percent blackwater and 50 percent
				  graywater.
4. Where the number of
				  bedrooms indicated on the floor plan and the corresponding building area of a
				  dwelling unit in Table I do not coincide, the criteria which will result in the
				  greatest estimated sewage flow shall apply.
5. Convenience store estimated sewage flows
				  shall be determined by adding flows for food outlets and service stations as
				  appropriate to the products and services offered.
6. Estimated flows for residential systems
				  assumes a maximum occupancy of two persons per bedroom. Where residential care
				  facilities will house more than two persons in any bedroom, estimated flows
				  shall be increased by 50 gallons per each additional
				  occupant.