Definitions in Chapter 62-6, Parts I and III, F.A.C., are also applicable to Chapter 62-6, Part II, F.A.C.
    (1) Building Area – that enclosed area of a dwelling unit, excluding the garage, carport, exterior storage shed, or open or screened patios or decks. Calculations of building area shall be made by measurements of the outside building dimensions. Building area of each additional story of the structure shall be added to determine the total building area.
    (2) Cesspit – a pit, with or without a cover, that receives untreated sewage from a building and discharges the sewage, either untreated or improperly treated, directly to the surrounding soil or limestone. A septic tank that functions as a cesspit shall be considered a cesspit.
    (3) Injection well – an open vertical hole at least 90 feet in depth, fully cased and grouted to at least 60 feet in depth which is used to dispose of onsite sewage treatment and disposal system effluent.
    (4) Minimum level of waste treatment – a treatment which will provide a recovered water product that contains not more, on a permitted annual average basis, than the following concentrations from a sampling point located following the final design treatment step of the onsite sewage treatment and disposal system:
(a) Biochemical Oxygen Demand (CBOD5)
10 mg/1
(b) Suspended Solids
10 mg/1
(c) Total Nitrogen, expressed as N
10 mg/1
(d) Total Phosphorus, expressed as P
1 mg/1
    (5) Salt Marsh and Buttonwood Associations – two plant associations that are sometimes collectively or individually referred to as the “”transitional zone.””
    (a) The salt marsh community is a wetland area subject to tidal influence wherein the dominant vegetation includes the following:
    1. Batis maritima Saltwort,
    2. Distichilis spicata Salt grass,
    3. Fimbristylis castanea Chestnut sedge,
    4. Monanthochloe littoralis Key grass,
    5. Salicornia spp. Glasswort,
    6. Sesuvium portulacastrum Sea purslane; and,
    7. Spartina spp. Cordgrass.
The woody vegetation that may be present includes red, white and black mangroves, as well as buttonwood (Conocarpus erectus); the salt marsh community is distinguished by the dominance of non-woody plants, and the woody species have a coverage of less than 40 percent. The salt marsh community may be associated and intermixed with areas of almost bare ground on which the vegetation may be limited to mats of algae.
    (b) The buttonwood association is an association that is usually present in the more landward zone, and may intermix with more upland communities. The vegetation may include, but is not limited to, the following species:
    1. Borrichia spp. Sea oxeye daisy,
    2. Bumelia celastrina Saffron plum,
    3. Coccoloba uvifera Sea grape,
    4. Conocarpus erectus Buttonwood,
    5. Erithalis fruticosa Black torch,
    6. Fimbristylis castanea Chestnut sedge,
    7. Jacquinia keyensis Joewood,
    8. Lycium carolinianum Christmas berry,
    9. Maytenus phyllanthoides Mayten; and,
    10. Spartina spp. Cordgrass.
The buttonwood association is distinguished from the salt marsh association by the dominance of buttonwood trees, usually occurring as an open stand that permits the growth of an under-story of groundcovers and shrubs.
    (6) Nutrient reducing material – material which is used in the final treatment stage of an onsite sewage treatment and disposal system to reduce effluent nutrient levels to the minimum level of waste treatment.
    (7) Undocumented system – an onsite sewage treatment and disposal system that does not have a record of installation and approval.
Rulemaking Authority 381.0011(4), (13), 381.006, 381.0065(3)(a), (4)(k) FS., Ch. 99-395, LOF. Law Implemented 154.01, 381.001(2), 381.0011(4), 381.006(7), 381.0061, 381.0065, 381.00655, 386.041 FS., Ch. 99-395, LOF. History-New 7-15-86, Amended 3-17-92, 1-3-95, Formerly 10D-6.062, Amended 3-3-98, 3-22-00, Formerly 64E-6.017.