HAZARDOUS MATERIALS: Those chemicals or substances which are physical or health hazards as defined and classified in Chapter 50 of the International Fire Code as adopted or amended by the City whether the materials are in usable or waste condition; and any material that may degrade groundwater quality when improperly used, stored, disposed of, or otherwise mismanaged. Appendix H of the International Fire Code provides further information, explanations, and examples of hazardous materials.

HAZARDOUS MATERIALS INVENTORY STATEMENT: A form provided by the Department or the Fire Department and completed by a facility owner that provides specified information regarding hazardous materials at the facility.

HAZARDOUS SUBSTANCE: Any liquid, solid, gas or sludge, including any material, substance, product commodity or waste that exhibits the characteristics of hazardous waste as described in chapter 70.105 RCW.

HAZARDOUS WASTE: All dangerous and extremely hazardous waste, except for moderate-risk waste, as defined in RCW 70.105.010.


HEARING EXAMINER: The office of the Hearing Examiner as defined by RMC Title 1. The Hearing Examiner is appointed by the Mayor of the City to conduct public hearings on applications outlined in chapter 4-8 RMC, and prepares a record, findings of fact and conclusions on such applications. (Ord. 4522, 6-5-1995)

HEARINGS BOARD, SHORELINE: The Shorelines Hearings Board established by the Shoreline Management Act.


HEIGHT, CLEAR: Distance from the floor to the lowest-hanging ceiling member or hanging objects, beams, joists or truss work descending down into a substantial portion of the area.

HEIGHT, FLOOR-TO-CEILING: The vertical distance between the finished floor and the ceiling.

HIGH BLOWDOWN POTENTIAL: An area where field conditions indicate the potential for tree blowdown is high. Evidence may include the presence of toppled trees in the area, and thin or saturated soils.

HIGH OCCUPANCY VEHICLE (HOV): A vehicle carrying more than a specified minimum number of people (usually two (2) or three (3) persons).

HIGH QUALITY DESIGN: A development project that encourages pedestrian activity or adds pedestrian interest and exhibits a degree of craftsmanship, building detailing, architectural design, or quality of materials that are not typically found in standard construction. Responds to site conditions through its orientation, circulation, and/or incorporation of special site features. Buildings characterized by standard corporate identity elements (e.g., fast food establishments with signature roofline or facade features) or standard building plans (e.g., stock plans that are unable to adapt to site conditions) are not typically considered high quality design.

HIGH RISE: A structure exceeding seventy five feet (75') in height.

HILLSIDE: An inclined landform which may include one or more classes of slope: steep (sensitive and/or protected) and non-steep (i.e., less than twenty five percent (25%)).

HILLSIDE SUBDIVISION: A subdivision in which the average slope is twenty percent (20%) or in which any street in the subdivision has grades greater than fifteen percent (15%) at any point.

HOLISTIC HEALTH CARE CENTER: A combination of activities intended for improvement or maintenance of health including out-patient and/or in-patient care and supporting accessory activities including space for medical practitioners, retail sales, educational classrooms and meeting spaces.

HOME OCCUPATION: Any commercial use conducted entirely within a dwelling or accessory structure and carried on by persons residing in that dwelling unit, but is clearly incidental and secondary to the use of the dwelling as a residence.


HOMEOWNERS’ ASSOCIATION: An incorporated nonprofit organization formed or qualified under the laws of the State of Washington, operating under recorded land agreements through which: (a) each land owner is automatically a member, (b) each land owner is automatically subject to a proportionate share of the expenses for the organization’s activities, such as maintaining common property and facilities, and (c) such charge, if unpaid, becomes a lien against the property of the land owner.

HOTEL: A building or portion thereof designed or used for transient rental for sleeping purposes. Hotel structures are at least two (2) stories in height, with lodging space above the first floor. Lodging space may also be located on the first floor. Individual rooms are typically accessed from a common hallway. A central kitchen and dining room and accessory shops and services catering to the general public may be provided. Not included in this definition are multi-family dwellings, bed and breakfasts, or motels.

HOUSEHOLD: A family living together in a single dwelling unit with common access to, and common use of, all living, sanitation facilities, and all areas and facilities for the preparation, consumption and storage of food within the dwelling unit.

HUMAN SCALE: The perceived size of a building relative to a human being. A building is considered to have good human scale if there is an expression of human activity or use that indicates the building’s size. For example, traditionally sized doors, windows, and balconies are elements that respond to the size of a human body, so these elements in a building indicate a building’s overall size.

HUMAN SCALE ELEMENTS: Architectural elements such as railings, windows with multiple panes, doorways, or fences, that are scaled for human use and convey the idea of human activity or human occupancy.

HYPORHEIC ZONE: The saturated zone located beneath and abutting streams that contains some portion of surface waters, serves as a filter for nutrients, and maintains water quality.

(Ord. 4517, 5-8-1995; Ord. 4522, 6-5-1995; Ord. 4665, 5-19-1997; Ord. 4716, 4-13-1998; Ord. 4821, 12-20-1999; Ord. 4835, 3-27-2000; Ord. 4851, 8-7-2000; Amd. Ord. 4963, 5-13-2002; Ord. 5124, 2-7-2005; Ord. 5125, 2-28-2005; Ord. 5137, 4-25-2005; Ord. 5570, 11-15-2010; Ord. 5633, 10-24-2011; Ord. 5676, 12-3-2012; Ord. 5748, 1-12-2015; Ord. 5806, 6-20-2016; Ord. 5899, 11-19-2018)