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(a) “Apartment unit” means one of several single-family housing units within one building and not specifically classified as a multi-unit dwelling; e.g., individual dwelling units in garden, medium and high-rise type residential buildings.

(b) “Base SDC fee” means the WSSC approved dollar charge for a plumbing fixture having a drainage fixture unit value and/or a water supply fixture unit value of one for nonresidential properties or residential units with more than five toilets. The base SDC fee for residential units with five or fewer toilets is the WSSC approved dollar charge based upon the unit’s number of toilets.

(c) “Drainage fixture unit value” means a measure of the probable discharge into the drainage system by a particular plumbing fixture in terms of volume rate of discharge and duration of a single drainage operation and the time period between successive operations.

(d) “Dwelling unit” means a single-family housing unit used as a residence, including trailers and mobile homes.

(e) “Hookup” means the joining of a property’s on-site water and/or sewer line(s) to the Commission’s service connection or the installation of plumbing fixtures in a building served by the Commission’s water and/or sewer facilities.

(f) “Multi-unit dwelling” means a building that will accommodate several housing units on a lateral basis; namely, semi-attached houses, row houses or townhouses used as residences.

(g) “New service” means:

(1) The first-time hookup of a property to the Commission’s water and/or sewer system; or

(2) A new connection or increased water meter size for a property, previously or currently served by the Commission, if the new connection or increased meter size is needed because of a change in the use of the property or an increase in demand for service at the property.

(h) “Nonresidential unit” means a structure not otherwise defined as a residential unit, generally commercial or industrial in nature. Examples may include shopping malls, nonresidential townhouses, warehouses, industrial buildings, restaurants, schools, dormitories, hospitals, hotels, motels, nursing homes, office buildings, churches, theaters and similar commercial or industrial buildings.

(i) “Plumbing permit” means the approved instrument, resulting from an application filed by a registered master plumber, which allows for hookup of fixtures or on-site piping to the Commission’s water and/or sewer systems.

(j) “Property” means an improvement(s) or building(s) on a lot or parcel of land containing plumbing fixtures described in terms of drainage fixture unit values or water supply fixture unit values.

(k) “Public sponsored and affordable housing” means:

(1) Any dwelling unit built or financed under a government program, regulation, or binding agreement that limits for at least 10 years the price or rent charged for the unit in order to make the unit affordable to households earning less than 80 percent of the area median income, adjusted for family size;

(2) Any moderately priced dwelling unit built under Chapter 25A of the Montgomery County Code or Subtitles 13 and 27 of the Prince George’s County Code;

(3) Any productivity housing unit, as defined in Section 25B-17(m) of the Montgomery County Code;

(4) Any unit in an opportunity housing project built under Sections 56-28 through 56-32 of the Montgomery County Code or Subtitle 13, Division 8, of the Prince George’s County Code, which is reserved for occupancy only by persons with low or moderate incomes (as defined in applicable provisions of state and county law);

(5) Any dwelling unit constructed pursuant to the Capturing Housing Opportunities in Communities Everywhere (CHOICE) program in Prince George’s County which is reserved for occupancy only by persons with low or moderate incomes (as defined in applicable provisions of state and county law).

(l) “Residential applicant” means a builder on whose behalf a registered master plumber applies for and receives from the Commission plumbing permits for construction of new residential units.

(m) “Residential unit” means any apartment unit, dwelling unit or multi-unit dwelling, as defined in this section, used as a residence.

(n) “SDC sewer charge” means the product of a fixture’s drainage fixture unit value and its associated base SDC fee for nonresidential properties or dwelling and multi-unit housing units with more than five toilets. For residential properties with five or fewer toilets, the SDC sewer charge is the Commission approved drainage portion of the base SDC fee.

(o) “SDC water charge” means the product of a fixture’s water supply fixture unit value and its associated base SDC fee for nonresidential properties or dwelling and multi-unit housing units with more than five toilets. For residential properties with five or fewer toilets, the SDC water charge is the Commission approved water supply portion of the base SDC fee.

(p) “Sub-district charge” means that charge established by the Commission pursuant to the provisions of the Public Utilities Article, § 25-101(b), Annotated Code of Maryland.

(q) “Toilet” means a water closet, as set forth in WSSC Chapter 14.25.

(r) “Water supply fixture unit value” means a measure of the probable hydraulic demand on the water supply by a particular plumbing fixture in terms of volume rate of supply and duration of a single supply operation and the time period between successive operations. (Amended during 2019 codification; CUS 98-01 § 2)