Iowa Admin. Code r. 481—469 § 481—469.2

“Arithmetic mean” means the algebraic sum of data values divided by the number of data values. For
example, the sum of the concentration of lead in several soil samples divided by the number of samples is
the arithmetic mean.
“Certificate of mailing” means certified mail with return receipt or its equivalent.
“Chewable surface” means an interior or exterior surface painted with lead-based paint that a young
child can mouth or chew.
“Child-occupied facility” means the same as defined in Iowa Code section 10A.903. “Child-occupied
facility” also includes any building where lead-based paint activities are conducted immediately prior to or
during the conversion of the building to a child-occupied facility.
“Common area” means a portion of the building that is generally accessible to all occupants. This
includes but is not limited to hallways, stairways, laundry and recreational rooms, playgrounds, community
centers, garages, and boundary fences.
“Compensation” means payment or reimbursement for services performed. Compensation is not
limited to monetary considerations and includes payment of rent for rental units, receipt of a salary
from the owner or manager of target housing, and receipt of a salary from the owner or operator of a
child-occupied facility.
“Components” means specific design or structural elements or fixtures of a building, residential
dwelling, or child-occupied facility that are distinguished from each other by form, function, and location.
These include but are not limited to interior components such as ceilings, crown moldings, walls, chair
rails, doors, door trim, floors, fireplaces, radiators and other heating units, shelves, shelf supports, stair
treads, stair risers, stair stringers, newel posts, railing caps, balustrades, windows and trim (including
sashes, window heads, jambs, sills or stools and troughs), built-in cabinets, columns, beams, bathroom
vanities, countertops, and air conditioners; and exterior components such as painted roofing, chimneys,
flashing, gutters and downspouts, ceilings, soffits, facias, rake boards, corner boards, bulkheads, doors and
door trim, fences, floors, joists, latticework, railings and railing caps, siding, handrails, stair risers and
treads, stair stringers, columns, balustrades, windowsills or stools and troughs, casing, sashes and wells,
and air conditioners.
“Department” means the department of inspections, appeals, and licensing.
“Dripline” means the area within three feet surrounding the perimeter of a building.
“Dust-lead hazard” means surface dust in residential dwellings or child-occupied facilities that
contains a mass-per-area concentration of lead equal to or exceeding 5 micrograms per square foot on
floors, 40 micrograms per square foot on interior windowsills, and 100 micrograms per square foot
on window troughs based on wipe samples. A dust-lead hazard is present in a residential dwelling or
child-occupied facility when the weighted arithmetic mean lead loading for all single-surface or composite
samples of floors and interior windowsills is equal to or greater than 5 micrograms per square foot on
floors, 40 micrograms per square foot on interior windowsills, and 100 micrograms per square foot on
window troughs based on wipe samples. A dust-lead hazard is present on floors, interior windowsills, or
window troughs in an unsampled residential dwelling in a multifamily dwelling if a dust-lead hazard is
present on floors, interior windowsills, or window troughs, respectively, in at least one sampled residential
unit on the property. A dust-lead hazard is present on floors, interior windowsills, or window troughs in

an unsampled common area in a multifamily dwelling if a dust-lead hazard is present on floors, interior
windowsills, or window troughs, respectively, in at least one sampled common area in the same common
area group on the property.
“Dwelling unit” means a single, unified combination of rooms designed for use as a dwelling by one
family.
“Emergency renovation, remodeling, or repainting” means renovation, remodeling, or repainting
activities necessitated by nonroutine failures of equipment or a structure that were not planned but resulted
from a sudden, unexpected event that, if not immediately attended to, presents a safety or public health
hazard or threatens equipment or property with significant damage.
“Friction surface” means an interior or exterior surface that is subject to abrasion or friction including
but not limited to certain window, floor, and stair surfaces.
“Hazardous lead-based paint” means lead-based paint that is present on a friction surface where there
is evidence of abrasion or where the dust-lead level on the nearest horizontal surface underneath the friction
surface (e.g., the windowsill or floor) is equal to or greater than the dust-lead hazard level, lead-based paint
that is present on an impact surface that is damaged or otherwise deteriorated from impact, lead-based paint
that is present on a chewable surface, or any other deteriorated lead-based paint in any residential building
or child-occupied facility or on the exterior of any residential building or child-occupied facility.
“Housing for the elderly” means retirement communities or similar types of housing reserved for
households composed of one or more persons 62 years of age or older or an age recognized as elderly by a
specific federal housing assistance program.
“Impact surface” means an interior or exterior surface that is subject to damage by repeated sudden
force such as certain parts of door frames.
“Lead-based paint” means paint or other surface coatings that contain lead equal to or in excess of 1.0
milligram per square centimeter or more than 0.5 percent by weight.
“Lead-based paint hazard” means hazardous lead-based paint, a dust-lead hazard, or a soil-lead hazard.
“Living area” means any area of a residential dwelling used by at least one child six years of age or
less including but not limited to living rooms, kitchen areas, dens, playrooms, and children’s bedrooms.
“Mid-yard” means an area of a residential yard approximately midway between the dripline of a
residential building and the nearest property boundary or between the driplines of a residential building and
another building on the same property.
“Multifamily dwelling” means a structure that contains more than one separate residential dwelling
unit, which is used or occupied, or is intended to be used or occupied, in whole or in part, as the home or
residence of one or more persons.
“Person” means individual, corporation, limited liability company, government or governmental
subdivision or agency, business trust, estate, trust, partnership, or association, or any other legal entity.
“Play area” means an area of frequent soil contact by children of less than six years of age as indicated
by but not limited to factors including the following: the presence of play equipment (sandboxes, swing
sets, and sliding boards), toys, or other children’s possessions, observations of play patterns, or information
provided by parents, residents, caregivers, or property owners.
“Regulated entity” means any individual or company that is regulated by the department by virtue of
these rules, the Iowa Code, or other official regulatory promulgation.
“Renovation, remodeling, repainting” means modifying any existing structure or portion of a structure
where painted surfaces are disturbed, unless the activity fits the criteria of lead abatement as defined
in rule 481--470.2(10A) and is performed by a certified lead abatement contractor as defined in rule
481--470.2(10A). This includes, but is not limited to, removing walls, ceilings, and other painted building
components; window replacement; floor refinishing; and sanding, scraping, stripping, water blasting, or
otherwise removing paint.
“Residential dwelling” means (1) a detached single-family dwelling unit, including the surrounding
yard, attached structures such as porches and stoops, and detached buildings and structures including but
not limited to garages, farm buildings, and fences, or (2) a single-family dwelling unit in a structure that
contains more than one separate residential dwelling unit, which is used or occupied, or intended to be used
or occupied, in whole or part, as the home or residence of one or more persons.

“Soil-lead hazard” means bare soil on residential real property or on the property of a child-occupied
facility that contains total lead in excess of 400 parts per million for the dripline, mid-yard, and play areas.
A soil-lead hazard is present in a dripline, mid-yard, or play area when the soil-lead concentration from a
composite sample of bare soil is equal to or greater than 400 parts per million.
“Target housing” means the same as defined in Iowa Code section 10A.903.
[ARC 8907C, IAB 2/19/25, effective 3/26/25; Editorial change: IAC Supplement 4/2/25; ARC 0594D, IAB 9/16/26, effective
10/21/26]