Definitions. Any term not defined herein, shall be governed by the definition as it appears in the current OWTS Rules.
ALTERNATIVE OWTS COMPONENTAny part of an OWTS that does not meet the design or construction requirements as provided by the OWTSs Rules, but has been demonstrated through field testing, calculations and other engineering evaluations to be equal to, or provide the equivalent performance of any part of an OWTS within the OWTSs Rules or to enhance or facilitate treatment, maintenance, longevity or efficiency of an OWTS, and for which a certification from RIDEM has been issued.
ALTERNATIVE TECHNOLOGYAny OWTS technology for which design parameters are not specified in the OWTSs Rules, but has been demonstrated through field testing, calculations and other engineering evaluations to comply with performance standards consistent with the OWTSs Rules, and for which a certification from RIDEM has been issued.
APPLICANTThe owner or owners of the property or easement that is the subject of the application, or the person who holds a valid purchase and sales agreement for said property.
AREA SUBJECT TO STORM FLOWAGEDrainage swales and channels which lead into, out of, pass through, or connect other watercourses, and which carry flows resulting from storm events but may remain relatively dry at other times.
BEDROCKRock, commonly called ledge, that forms the earth's crust. Bedrock includes rotten rock.
BEDROOMAny room in a residential structure which is greater than 70 square feet in area, which is susceptible to present or future use as a private sleeping area and which satisfies all of the following requirements:
(1) Has at least one window that meets the 4.4 square foot minimum size and all other requirements of the "Rhode Island State Building Code SBC-1 or SBC-2";
(2) Has at least one interior method of entry and egress, excluding closets and bathrooms, allowing the room to be closed off from the remainder of the residence for privacy; and
(3) Is a heated living space that is unrestricted for year-round use. Rooms located below grade that are not recognized as bedrooms by the "Rhode Island State Building Code SBC-1 or SBC-2" are not recognized as bedrooms under this ordinance.
BLACKWATERLiquid and solid human body waste and the carriage waters generated through toilet usage.
BUILDING SEWERThe pipe that begins outside the building foundation wall and extends to the septic tank, the pipe that begins outside the building foundation wall and extends to the grease tank, the pipe from a grease tank to a septic tank, or the pipe carrying laundry wastes directly to a leachfield.
CESSPOOLAny buried chamber, including, but not limited to, any perforated metal tank, perforated concrete vault or covered hollow or excavation, which receives discharges of wastewater from a building sewer for the purpose of collecting solids and discharging liquids to the surrounding soil. As of December 31, 2005, the use of a cesspool is prohibited.
CHANGE OF USEAny change in use or occupancy of any structure or part thereof which would violate any provision of the Rhode Island State Building Code, G.L. 1956, ch. 23-27.3, as amended, or any regulation promulgated thereto without first obtaining a certificate of occupancy indicating that the structure complies with the provisions of the state building code for the proposed new use. Change of use shall also be held to mean a conversion of a seasonally used structure to a structure for year-round use.
COASTAL SHORELINE FEATUREA part of the shore as categorized by the State of Rhode Island Coastal Resources Management Program using the following categories: coastal beaches; barrier islands and spits; coastal wetlands; coastal headlands, bluffs and cliffs; rocky shores; manmade shorelines; and dunes.
COMPOST TOILETAny self-contained toilet from which no liquid or solid waste materials are regularly discharged and from which a humus-like end product is produced.
DIRECTORThe Director of the Rhode Island Department of Environmental Management or any subordinate(s) to whom the Director has delegated the powers and duties vested in him/her pursuant to G.L. 1956, chs. 46-12 and 42-17.1, as amended, or any other duly authorized Agent.
DISPERSAL TRENCHA shallow ditch with vertical sides, filled with stone, in which a single perforated distribution line or other suitable distribution device is laid and over which a cover of earth is placed.
DISTRIBUTION BOXA watertight compartment that receives effluent and distributes it in approximately equal portions to two or more distribution lines leading to some type of leachfield.
DISTRIBUTION LINEThe imperforated and perforated pipe or other suitable distribution device used to disperse effluent that extends from the distribution box.
DOSINGThe pumped or regulated flow of wastewater.
EXPERIMENTAL TECHNOLOGYAny OWTS technology that does not meet the location, design or construction requirements as provided by these Rules, but has been demonstrated in theory to meet the requirements of these Rules and may not be in use in Rhode Island or elsewhere as an approved technology for wastewater treatment.
FAILED OWTSAny OWTS that does not adequately treat and disperse wastewater so as to create a public or private nuisance or threat to public health or environmental quality, as evidenced by, but not limited to, one or more of the following conditions:
(1) Cesspools are not an approved method of wastewater disposal under the OWTSs Rules and this Ordinance. All existing cesspools are considered to be substandard wastewater treatment systems. As of December 31, 2005, the use of a cesspool is prohibited, and shall be considered a failed system.
(2) Failure to accept wastewater into the building sewer;
(3) Discharge of wastewater to a basement; subsurface drain; stormwater collection, conveyance, or treatment device; or watercourse unless expressly permitted by the Department;
(4) Wastewater rising to the surface of the ground over or near any part of an OWTS or seeping from the absorption area at any change in grade, bank or road cut;
(5) The invert of the inlet or the invert of the outlet for a septic tank, distribution box, or pump tank is submerged;
(6) Pumping of the septic tank is required more than two times per year;
(7) OWTS is shown to have contaminated a drinking water well or watercourse;
(8) If a septic tank, pump tank, or distribution box is pumped and groundwater seeps into it; or
(9) Any deterioration, damage, or malfunction relating to any OWTS that would preclude adequate treatment and dispersal of wastewater.
(10) Excessive solids are evident in the distribution box or distribution lines.
FINANCIAL SURETYA general obligation bond, revenue bond, performance bond, or any other type of financial guaranty, in fully marketable form, as evidence to the commitment of the construction of a sewer project.
FLOODPLAINThat land area adjacent to a river or stream or other body of flowing water which is, on the average, likely to be covered with flood waters resulting from a 100-year frequency storm. A 100-year frequency storm is one that is to be expected to be equaled or exceeded once in 100 years; or may be said to have a 1% probability of being equaled or exceeded in any given year. Rainfall intensity data for a 100-year frequency storm are those established for New England locations by the National Weather Service.
FOUNDATION DRAINAny mechanical or gravity drainage system, including all porous media installed to facilitate drainage, that lowers the groundwater elevation beneath a building foundation and which has an outlet for the collected groundwater.
FRESHWATER WETLANDIs defined as set forth in G.L. 1956, § 2-1-20(4), as amended, and as further defined by the Department's "Rules and Regulations Governing the Administration and Enforcement of the Fresh Water Wetlands Act." The term shall further be held to include those wetland types defined by the remainder of G.L. 1956, § 2-1-20 and the wetland regulations, including, but not limited to: marshes, swamps, bogs, ponds, rivers, river and stream floodplains and banks, areas subject to flooding or stream water, including rivers and streams, and that area of land within 50 feet of the edge of any bog, marsh, swamp or pond or that area within 100 feet of a flowing body of water less than 10 feet wide or that area within 200 feet of a flowing body of water greater than 10 feet in width.
GRAYWATERWastewater drained from sinks, tubs, showers, dishwashers, clothes washers, and other non-toilet sources.
GROUNDWATER TABLEThe upper surface of the zone of saturation in an unconfined aquifer; includes a perched groundwater table.
HOLDING TANKA closed watertight structure used to contain wastewater prior to being removed from the premises. A holding tank does not discharge wastewater to the surface of the ground or to the subsurface.
HUMAN TRANSPORTED MATERIALAny materials, other than those emplaced pursuant to the OWTS Rules, including but not limited to artifacts, organic materials, soil, rock, or sediment moved horizontally by directed human activity.
INVERTThe lowest portion of the interior of a pipe or fitting.
LARGE CAPACITY CESSPOOLA cesspool that serves any non-residential facility that has the capacity to serve more than 20 people per day or serves any multi-family residence or apartment building. As of December 31, 2005, the use of a large capacity cesspool is prohibited.
LARGE ONSITE WASTEWATER TREATMENT SYSTEMAn OWTS that meets any of the following:
(1) Any single OWTS designed to treat 5,000 gallons or more per day;
(2) Multiple OWTSs for any project on one or more parcels of land, excluding residential subdivisions, where the total design flow for the project is 5,000 gallons or more per day; or
(3) All OWTSs serving more than one unit in a residential subdivision, provided that the total design flow of these OWTSs, each serving more than one unit, is 5,000 gallons or more per day.
LEACHFIELDA group of one or more dispersal chambers or trenches designed for the final treatment and dispersal of wastewater into the underlying soil. The leachfield shall be held to mean the horizontal and vertical lines circumscribing the outermost edges including the area between the chambers or trenches and the depth to the bottom of stone.
LINEAR LOADING RATEThe loading rate per linear foot of leachfield (gallons per day per linear foot) along the land's contour.
MAINTENANCEThe regular cleaning of any concrete chamber, cesspool, septic tank, building sewer, distribution lines or any other component of an OWTS for the purpose of removing accumulated liquid, scum or sludge. The term, "maintenance," shall also be held to include regularly required servicing or replacement of any related mechanical, electrical, or other component equipment.
NITROGEN REDUCING TECHNOLOGYA wastewater treatment technology that is accepted by the Department as capable of reducing the total nitrogen concentrations by at least 50% and meeting an effluent concentration of less than or equal to 19 mg/l.
ONSITE WASTEWATER TREATMENT SYSTEM (OWTS)Any system of piping, tanks, dispersal areas, alternative toilets or other facilities designed to function as a unit to convey, store, treat or disperse wastewater by means other than discharge into a public sewer system.
ORIGINAL GROUNDThose soils that have been deposited or developed by natural processes, excluding storm deposited sand in the backdune environment.
OWNERAny person who holds legal title to any real property; or has possession or control of any real property through any agent, executor, executrix, administrator, administratrix, trustee or guardian of the estate of a holder of a legal title. Each such person is bound to comply with the provisions of these Rules.
PERSONAny individual, group of individuals, firm, corporation, association, partnership or any federal, state or municipal governmental entity.
PRIVATE DRINKING WATER WELLAny manmade opening into the ground developed for the purpose of meeting a person's current potable drinking water needs provided said well does not supply a public water system. This definition shall include proposed private drinking water wells on an applicant's property and on other properties with an approved OWTS permit. Wells serving non-potable or non-drinking water needs are not considered private drinking water wells under either this Ordinance or the OWTS Rule. A well on a property that is served by a public water system is not considered a private drinking water well under the OWTSs Rule.
PROBEAny exploratory test employing a driving rod, tool or other device to establish the depth of bedrock.
PUBLIC WATER SYSTEMAny water system that provides piped water to the public for human consumption, provided that such system has at least 15 service connections or serves an average of 25 individuals daily at least 60 days out of the year. A public water system shall include all sources and facilities involved in collecting, treating, storing and distributing the water.
PUMP TANKA watertight structure equipped with one or more pumps designed to discharge wastewater intermittently into a leachfield.
REPAIRAny work performed on an OWTS in order to mend or renovate a specific defect or deficiency after the failure, injury, deterioration or partial destruction of a previously existing OWTS or component thereof. A repair shall include any upgrade or modernize of an OWTS (e.g., replacement of cesspool). A repair shall not include any work performed on an existing OWTS that increases the flow capacity of the system.
RESIDENCEAny structure used for housing purposes, including, but not limited to, single or multiple family dwellings, duplexes, tenements, apartment buildings, residential condominiums, mobile homes, recreational vehicles or trailers.
RESTRICTIVE LAYERA soil horizon that is assigned to a soil category 10 as defined in Rule 15.11 of the OWTS Rules.
ROTTEN ROCKAny decomposed but still coherent rock. Rotten Rock is greater than 50% coherent rock and lies above equal or more coherent rock.
SEASONAL HIGH GROUNDWATER TABLEThe elevation of the groundwater table during that time of the year at which it is highest as determined by direct observation or by interpretation of hydromorphic features in the soil profile.
SEPTAGEAny solid, liquid or semi-solid removed from septic tanks, cesspools, privies, domestic wastewater holding tanks or other similar onsite wastewater treatment systems.
SEPTIC TANKA watertight receptacle which receives the discharge of wastewater from a building sewer, and is designed and constructed to permit the deposition of settled solids, the digestion of the matter deposited, and the discharge of the liquid portion into the next treatment component or distribution box.
SEPTIC TANK EFFLUENT PIPEThe gravity-flow pipe that begins at the outlet of the septic tank or other treatment tank and extends to the next treatment component or distribution box.
SINGLE-SERVICE ARTICLESTableware, carry-out utensils, and other items such as bags, containers, placemats, stirrers, straws, toothpicks, and wrappers that are designed and constructed for use one time by one individual.
STORM DRAINAny pipe or structure designed to collect, carry and divert surface water runoff.
STRUCTUREAny residence (as defined herein), building, garage, shack, trailer or other permanent or semi-permanent facility, whether commercial or non-commercial in use, which is proposed to be placed or has been built or otherwise placed on a parcel of real property.
SUBSURFACE DRAINSAny system of below surface piping or highly permeable material intended to lower the groundwater table of an area, and which has an outlet to the surface for the collected groundwater.
TEST HOLEAny excavation in the proposed leachfield area to collect information on the soil profile, depth to a restrictive layer or bedrock, depth to seasonal high groundwater table or any other applicable field information.
TIPPING DISTRIBUTION BOXA type of distribution box where the effluent from the septic tank flows into a tipping pan, which when full, empties into the leachfield lines, thereby facilitating a more uniform distribution of effluent over the entire leach field.
TRIBUTARYAny flowing body of water or watercourse that provides intermittent or perennial flow to down-gradient watercourses that eventually discharge to the waters of concern (e.g., reservoir impoundment or salt pond).
TRIBUTARY WETLANDFreshwater wetlands within a watershed that are connected via a watercourse to the waters of concern (e.g., drinking water supply impoundment or coastal wetland or tidal waters).
WASTEWATERHuman or animal excremental liquid or substance, putrescible animal or vegetable matter or garbage and filth, including, but not limited to, water discharged from toilets, bath tubs, showers, laundry tubs, washing machines, sinks, and dishwashers. Both blackwater and graywater are considered wastewater under these Rules.
WATERCOURSEAny river, stream, brook, pond, lake, swamp, marsh, bog, fen, wet meadow, area subject to storm flowage, or any other standing or flowing body of water, including such watercourses that may be affected by the tides.
WELLHEAD PROTECTION AREAThe area as designated by the Director in the RIDEM "Rules and Regulations for Groundwater Quality" surrounding a public well or wellfield through which water will move toward and reach such well or wellfield.