HomeMy WebLinkAboutBIL 269 Draft 01 2008-2010 oJr <v N
COUNTY OF HAWAII -•��''!_• STATE OF HAWAII
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BILL NO. 269
ORDINANCE NO.
AN ORDINANCE AMENDING CHAPTER 17 OF THE HAWAII COUNTY CODE 1983
(2005 EDITION, AS AMENDED), RELATING TO PLUMBING.
BE IT ORDAINED BY THE COUNCIL OF THE COUNTY OF HAWAII:
SECTION 1. Chapter 17, article 1, section 17 -1 of the Hawai`i County Code 1983 (2005
Edition, as amended) is amended to read as follows:
"Section 17 -1. Title and purpose.
(a) This chapter shall be known as the "plumbing code," may be cited as such, and will
be referred to herein as "this code."
(b) The purpose of this code is to provide for the protection of the public health and
safety by establishing minimum regulations for the installation, alteration, or repair
of plumbing, gas, and drainage systems and the inspection thereof."
SECTION 2. Chapter 17, article 1, section 17 -3 of the Hawai`i County Code 1983 (2005
Edition, as amended) is amended by amending the definition of "administrative authority" to
read as follows:
"[ "Administrative authority "] "Authority having jurisdiction" means the director of the
department of public works, or the director's authorized representative(s)."
SECTION 3. Chapter 17, article 2, division 4, section 17 -24 of the Hawai`i County
Code 1983 (2005 Edition, as amended) is amended to read as follows:
"Section 17 -24. Inspection required.
(a) All plumbing, gas, and drainage systems shall be inspected by the administrative
authority to ensure compliance with all the requirements of this code. Approval as a
result of an inspection shall not be construed to be an approval of a violation of the
provisions of this code or of any other ordinance. Inspections presuming to give
authority to violate or cancel the provisions of this code or of any other ordinance
shall not be valid.
(b) It shall be the duty of the permit applicant to cause the work to remain accessible and
exposed for inspection purposes. Neither the authority having jurisdiction nor the
County shall be liable for any expense entailed in the removal or replacement of any
material required to perform the inspection."
SECTION 4. Chapter 17, article 2, division 4, section 17 -25 of the Hawai`i County
Code 1983 (2005 Edition, as amended) is amended to read as follows:
"Section 17 -25. Notification to administrative authority that work is ready for
inspection.
(a) It shall be the duty of the person doing the work authorized by the permit to notify
the administrative authority orally or in writing, that said work is ready for
inspection. [. . - . • . : - • - . - . - • _ - - -
work is to be inspected.] The authority having jurisdiction may require that every
request for inspection be filed and ready at least forty -eight hours before such
inspection is desired. Such request may be in writing or by phone at the option of
the authority having jurisdiction.
(b) It shall be the duty of the person doing the work authorized by the permit, to make
sure that the work will stand the tests prescribed elsewhere in this code, before
giving the above notification.
(c) It shall be the duty of the person requesting any inspections required by this code to
provide access to and means for proper inspection of such work."
SECTION 5. For the preceding sections, material to be repealed is bracketed and
stricken; material to be added is underscored. In printing this ordinance, the brackets, bracketed
and stricken material, and underscoring need not be included.
SECTION 6. The following sections of chapter 17, Hawai`i County Code 1983 (2005
Edition, as amended) are hereby amended by replacing every reference to "administrative
authority" with "authority having jurisdiction ":
Section 17 -3;
Section 17 -8;
Section 17 -10;
Section 17 -11;
Section 17 -15;
Section 17 -17;
Section 17 -18;
Section 17 -24;
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Section 17 -25;
Section 17 -28;
Section 17 -29;
Section 17 -33;
Section 17 -34;
Section 17 -35;
Section 17 -37;
Section 17 -42;
Section 17 -43; and
Section 17 -53.
SECTION 7. Chapter 17, article 3 of the Hawai`i County Code 1983 (2005 Edition, as
amended) is repealed in its entirety.
SECTION 8. Chapter 17 of the Hawai`i County Code 1983 (2005 Edition, as amended)
is amended by adding a new article 3 to read as follows:
"Article 3. Installation Requirements.
Section 17 -47. Uniform Plumbing Code adopted.
The "International Association of Plumbing and Mechanical Officials Uniform
Plumbing Code, 2006 Edition," published by the International Association of Plumbing
and Mechanical Officials, 5001 E. Philadelphia Street, Ontario, California 91761 -2816,
including appendices, is adopted by reference and made a part of this code. This
incorporation by reference includes all parts of the Uniform Plumbing Code, except for
part 1, relating to Administration, and is subject to the amendments hereinafter set forth.
(1) Amending Section 204.0. Section 204.0 is amended by amending the definition
of "Building Drain" to read:
"Building Drain — That part of the lowest piping of a drainage system that
receives the discharge from soil, waste, and other drainage pipes inside the
walls of the building and conveys it to the building sewer beginning five (5) feet
(1524 mm) outside the building wall."
(2) Adding a new definition to Section 205.0. A definition of "Control Valve
(Water)" is added to read:
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"Control Valve (Water) — A control valve is any type of valve which can change
the flow rate of water, which includes compression stop valves."
(3) Adding a new definition to Section 210.0. A definition of "Health Officer" is
added to read:
"Health Officer — Health Officer shall mean the Director of Health of the
Department of Health, State of Hawai`i, or the Director's authorized agent."
(4) Adding a new definition to Section 221.0. A definition of "Single -Stack
System" is added to read:
"Single -Stack System — A specially designed plumbing system wherein a
common stack serves as a drainage pipe as well as a vent pipe."
(5) Adding Section 314.8. Section 314.8 is added to read:
"314.8 Seismic Supports. Where earthquake loads are applicable in
accordance with the building code, plumbing piping supports shall be designed
and installed for the seismic forces in accordance with the building code."
(6) Deleting Section 412.0, Table 4 -1 and Table A. Section 412.0, Table 4 -1 and
Table A are deleted in their entirety, and replaced to read:
"412.0 Minimum Number of Required Fixtures. Plumbing fixtures shall be
provided for the type of building occupancy and in the minimum number
required in Chapter 29 of the International Building Code."
(7) Amending Section 715.1. Section 715.1 is amended to read:
"715.1 The building sewer, beginning five (5) feet (1524 mm) from any
building or structure, shall be of such materials as prescribed in this code."
(8) Adding Section 911.0. Section 911.0 is added to read:
"911.0 Single Stack System. When approved by the authority having
jurisdiction, a single -stack system based on engineered studies and tests may be
used in lieu of other related provisions in this code. Plans and specifications of
such systems shall be prepared and stamped by a State of Hawai`i licensed
mechanical engineer."
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(9) Amending Section 1101.11.1. Section 1101.11.1 is amended to read:
"1101.11.1 Primary Roof Drainage. Roof areas of a building shall be drained
by roof drains or gutters. The location and sizing of drains and gutters shall be
coordinated with the structural design and pitch of the roof. Unless otherwise
required by the Authority Having Jurisdiction, roof drains, gutters, vertical
conductors or leaders, and horizontal storm drains for primary drainage shall be
sized based on a storm of sixty (60) minutes duration and 100 -year return
period. Refer to the National Weather Service rainfall map for 100 -year, 60-
minute storms at various locations."
(10) Amending Section 1301.1. Section 1301.1 is amended by adding two new
sentences at the end to read:
"The provisions of Chapter 13 shall be used as REFERENCE ONLY, for the
design and construction of medical gas and vacuum systems. This Chapter will
not be regulated or enforced by the County of Hawai`i. Responsibility shall be
by the company and mechanical engineer who designs and sizes the system."
(11) Amending Section 1327.0 Testing and Inspection. Section 1327.0 is amended
by replacing "Authority Having Jurisdiction" with "Certified Medical Gas
System Verifier" (Individuals who have successfully passed a National
Inspection Testing Certification Service competency examination in accordance
with ASSE Series 6000 Standard, Section 6030) for all instances in Sections
1327.1 to1327.15.
(12) Amending Section 1601.0 (A). Section 1601.0 (A) is amended to read:
"(A) The provisions of this chapter shall apply to the construction, alteration,
and repair of gray water systems for underground landscape irrigation.
Installations shall be allowed only in single- family dwellings or as allowed
by the authority having jurisdiction. The system shall have no connection
to any potable water system and shall not result in any surfacing of the
gray water. Except as otherwise provided for in this chapter, the
provisions of this code shall be applicable to gray water installation."
(13) Amending Section 1601.0 (D). Section 1601.0 (D) is amended to read:
"(D) No permit or approval for any gray water system shall be issued until a
plot plan with appropriate data or design plans satisfactory to the authority
having jurisdiction has been submitted and approved for use. When there
is insufficient lot area or inappropriate soil conditions for adequate
absorption of the gray water, as determined by the authority having
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jurisdiction, no gray water system shall be permitted."
(14) Amending Section 1601.0 (E). Section 1601.0 (E) is amended to read:
"(E) No permit or approval shall be issued for a gray water system on any
property in a geologically sensitive area as determined by the authority
having jurisdiction."
(15) Amending Section 1603.0. Section 1603.0 is amended to read:
"1603.0 Permit or Approval.
It shall be unlawful for any person to construct, install, or alter, or cause to be
constructed, installed, or altered any gray water system in a building or on a
premises without first obtaining a permit or approval to do such work from the
authority having jurisdiction."
(16) Amending Section 1604.0. Section 1604.0 is amended by amending the opening
paragraph to read:
"1604.0 Drawings and Specifications.
The authority having jurisdiction may require any or all of the following
information to be included with or in the plot plan before a permit or approval is
issued for a gray water system, or at any time during the construction thereof:"
(17) Amending Section 1604.0 (A). Section 1604.0 (A) is amended to read:
"(A) Plot plan drawn to scale and completely dimensioned, showing lot lines
and structures, direction and approximate slope of surface, location of all
present or proposed retaining walls, drainage channels, water supply lines,
wells, paved areas and structures on the plot, number of bedrooms and
plumbing fixtures in each structure, location of private sewage disposal
system or building sewer connecting to the public sewer, and location of
the proposed gray water system."
(18) Amending Section 1607.0. Section 1607.0 is amended to read:
"1607.0 Required Area of Subsurface Irrigation /Disposal Fields (See Figure
16 -5.)
The authority having jurisdiction may require that each valved zone shall have a
minimum effective irrigation area in square feet as determined by Table 16 -2
for the type of soil found in the excavation, based upon a calculation of
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estimated gray water discharge pursuant to Section 1606.0 of this chapter, or the
size of the holding tank, whichever is larger. The area of the irrigation/disposal
field shall be equal to the aggregate length of the perforated pipe sections within
the valved zone multiplied the width of the proposed irrigation/ disposal field.
Each proposed gray water system shall include at least three (3) valved zones,
and each zone shall be in compliance with the provisions of the section. No
excavation for an irrigation/disposal field shall extend within three (3) vertical
feet of the highest known seasonal groundwater, nor to a depth where gray
water may contaminate the groundwater or ocean water. The applicant shall
supply evidence of groundwater depth to the satisfaction of the authority having
jurisdiction."
(19) Amending Section 1608.0. Section 1608.0 is amended to read:
"1608.0 Determination of Maximum Absorption Capacity.
(A) Wherever practicable, irrigation/disposal field size shall be computed from
Table 16 -2 and Table 16 -3, or Water Demand based on Evapotranspiration
(ET) data.
(B) In order to determine the absorption quantities of questionable soils other
than those listed in Tables 16 -2 and 16 -3, the proposed site may be
subjected to percolation tests acceptable to the authority having jurisdiction.
(C) When a percolation test is required, no gray water system shall be permitted
if the test shows the absorption capacity of the soil is not acceptable as
determined by the authority having jurisdiction or is less than eighty -three
hundredths (0.83) gallons per square foot (33.8 L /m or more than five and
twelve hundredths (5.12) gallons per square foot (208.5 L /m of leaching
area per twenty -four (24) hours.
(D) The following formula can be used to estimate the square footage of
landscape to be irrigated based on ET data:
LA = GW
ETx PF x 0.62
Where: GW = estimated gray water produced (gallons per week)
LA = landscaped area (ft
ET = evapotranspiration (inches per week)
PF = plant factor, based on climate and type of plants
0.62 = conversion factor (from inches of ET to gallons per week)."
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(20) Amending Section 1611.0. Section 1611.0 is amended to read:
"1611.0 Irrigation /Disposal Field Construction. (See Figure 16 -5.)
The authority having jurisdiction may permit subsurface drip irrigation, mini -
leach field or other equivalent irrigation methods which discharge gray water in
a manner which ensures that the gray water does not surface. Design Standards
for subsurface drip irrigation systems and mini -leach field irrigation systems are
as follows:
(A) Standards for a subsurface drip irrigation system:
(1) Minimum 140 mesh (115 micron) filter with a capacity of 25 gallons
per minute, or equivalent, filtration, sized appropriately to maintain the
filtration rate, shall be used. The filter back -wash and flush discharge
shall be caught, contained and disposed of to the sewer system, septic
tank, or with approval of the authority having jurisdiction, a separate
mini -leach field sized to accept all the back wash and flush discharge
water. Filter backwash water and flush water shall not be used for any
purpose. Sanitary procedures shall be followed when handling filter
back -wash and flush discharge of gray water.
(2) Emitters shall have a minimum flow path of 1200 microns and shall
have a coefficient of manufacturing variation (Cv) of no more than
seven percent. Irrigation system design shall be such that the emitter
flow variation shall not exceed plus or minus ten percent. Emitters
shall be recommended by the manufacture for subsurface use and gray
water use, and shall have demonstrated resistance to root intrusion.
(3) Each irrigation zone shall be designed to include no less than the
number of emitters specified in Table 16 -3, or through a procedure
designated by the authority having jurisdiction. Minimum spacing
between emitters is 14 inches in any direction.
(4) The system design shall provide user controls, such as valves, switches,
timers, and other controllers as appropriate, to rotate the distribution of
gray water between irrigation zones.
(5) All drip irrigation supply lines shall be polyethylene tubing or PVC
class 200 pipe or better and schedule 40 fittings. All joints shall be
properly solvent- cemented, inspected and pressure tested at 40 psi, and
shown to be drip tight for five minutes, before burial. All supply lines
will be buried at least eight inches deep. Drip feeder lines can be poly
or flexible PVC tubing and shall be covered to a minimum depth of
nine inches.
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(6) Where pressure at the discharge side of the pump exceeds 20 pounds
per square inch (psi), a pressure reducing valve able to maintain
downstream pressure no greater than 20 psi shall be installed
downstream from the pump and before any emission device.
(7) Each irrigation zone shall include a flush valve /anti - siphon valve to
prevent back siphonage of water and soil.
(B) Standards for a mini -leach field system:
(1) Perforated sections shall be a minimum three (3) inch (80 mm)
diameter and shall be constructed of perforated high- density
polyethylene pipe, perforated ABS pipe, perforated PVC pipe, or other
approved materials, provided that sufficient openings are available for
distribution of the gray water in to the trench area. Material,
construction, and perforation of the pipe shall be in compliance with the
appropriate absorption fields drainage piping standards and shall be
approved by the authority having jurisdiction.
(2) Filter material, clean stone, gravel, slag, or similar filter material
acceptable to the authority having jurisdiction, varying in size from
three - quarter (3/4) inch (20 mm) to two and one -half (2 -1/2) inch (65
mm) shall be placed in the trench to the depth and grade required by
this section. The perforated section shall be laid on the filter material in
an approved manner. The perforated section shall then be covered with
filter material to the minimum depth required by this section. The filter
material shall then be covered with untreated building paper, straw, or
similar porous material to prevent closure of voids with earth backfill.
No earth backfill shall be placed over the filter material cover until after
inspection and acceptance."
(21) Deleting Chart for Section 1611.0 (C). The corresponding chart for Section
1611.0 (C) is deleted.
(22) Amending Section 1612.0 (A). Section 1612.0 (A) is amended to read:
"(A) Other collection and distribution systems such as laundry only gray water
systems may be approved by the local authority having jurisdiction."
(23) Amending Table 16 -1. Table 16 -1, Location of Gray Water Systems, is amended as
follows:
A) Deleted "100% expansion area" as relating to "Disposal Field."
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B) Changed the values for the following Irrggation/Disposal Field:
- Building Structures
- Water Supply Wells
Disposal Field
As amended, Table 16 -1 shall read:
"Table 16 -1
Location of Gray Water System
Minimum Horizontal Distance Holding Tank Irrigation/
in Clear Required From: Feet (mm) Disposal Field
Feet (mm)
Building structures' 5 (1,524 mm) 5 (1,524 mm)
Property line adjoining private 5 (1,524 mm) 5 (1,524 mm)
property
Water supply wells 50 (15,240 mm) 1000 (304,800 mm)
Streams and lakes 50 (15,240 mm) 50 (15,240 mm)
Sewage pits or cesspools 5 (1,524 mm) 5 (1,524 mm)
Disposal field 5 (1,524 mm) 5 (1,524 mm)
Septic tank 0 (0) 5 (1,524 mm)
On -site domestic water service line 5 (1,524 mm) 5 (1,524 mm)
Pressurized public water main 10 (3,048 mm) 10 (3,048 mm)
Note: When irrigation/disposal fields are installed in sloping ground, the minimum horizontal distance between any
part of the distribution system and the ground surface shall be fifteen (15) feet (4,572 mm).
Including porches and steps, whether covered or uncovered, breezeways, roofed porte cocheres, roofed patios,
carports, covered walks, covered driveways, and similar structures or appurtenances.
2 The distance may be reduced to zero feet for aboveground tanks when first approved by the authority having
jurisdiction.
3 Assumes a 45- degree (0.79 rad) angle from foundation.
4 Where special hazards are involved, the distance required shall be increased as may be directed by the authority
having jurisdiction.
5 These minimum clear horizontal distances shall also apply between the irrigation/disposal field and the ocean
mean higher hightide line.
6 Plus two (2) feet (610 mm) for each additional foot of depth in excess of one (1) foot (305 mm) below the
bottom of the drain line.
For parallel construction/for crossings, approval by the authority having jurisdiction shall be required."
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(24) Adding Table 16 -3. A new Table 16 -3 is added as follows:
"Table 16 -3
Subsurface Drip Design Criteria for Six Typical Soils
Minimum Number of
Type of Soil Maximum Emitter Emitters per gdp of
Discharge (gaUday) gray water production
Sand 1.8 0.6
Sandy loam 1.4 0.7
Loam 1.2 0.9
Clay loam 0.9 1.1
Silty Clay 0.6 1.6
Clay 0.5 2.0"
(25) Amending Section 1614.0. Section 1614.0 is amended to read:
"1614.0 Definitions.
Reclaimed water is water that, as a result of tertiary treatment of domestic
wastewater, is at all times oxidized, then filtered, and then exposed, after the
filtration process, to:
(1) A disinfection process that, when combined with the filtration process, has
been demonstrated to inactivate and /or remove 99.999 percent of the
plaque - forming units of F- specific bacteriophage MS2, or polio virus in the
wastewater. A virus that is at least resistant to disinfection as polio virus
may be used for purposes of demonstration; and
(2) A disinfection process that limits the concentration of fecal coliform
bacteria to the following criteria:
(i) The median density measure in the disinfected effluent does not
exceed 2.2 per 100 milliliters utilizing the bacteriological results of the
last seven days for which analyses have been completed; and
(ii) The density does exceed 23 per 100 milliliters in more than one
sample in any 30 -day period; and
(iii) No sample shall exceed 200 per 100 milliliters.
The level of treatment and quality of the reclaimed water shall be approved
by the Department of Health.
Specifically excluded from this definition is gray water, which is defined
in Part I of this chapter.
For the purposes of this section, the words "reclaimed" and "recycled"
may be used interchangeably."
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(26) Amending Section K1 (A). Appendix K is amended by adding at the end of
Section K1 (A) the following:
"Construction plans for private sewage disposal systems shall be prepared by
or under the supervision of a Hawai`i licensed engineer registered in the State
of Hawai`i. All private sewage disposal systems shall be constructed or
modified by a person meeting the requirements of chapter 444, Hawai`i
Revised Statutes and any pertinent rules promulgated by the department of
commerce and consumer affairs, State of Hawai`i."
(27) Amending Section K1 (E). Appendix K is amended by amending Section K 1
(E) to read:
"(E) The lot area shall not be less than 10,000 square feet except for lots
created and recorded before August 30, 1991. For lots less than 10,000 square
feet which were created and recorded before August 20, 1991, only one private
sewage disposal system shall be allowed. The total wastewater flow into one
private sewage disposal system shall not exceed 1,000 gallons, and one private
sewage disposal system shall not serve more than five bedrooms, whether they
are in one dwelling unit or two. For buildings, other than dwellings with
highly variable wastewater flow rates, such as but not limited to schools, parks,
and churches, the private sewage disposal system may exceed a design flow
rate of 1,000 gallons per day."
(28) Amending Section K1 (J). Appendix K is amended by adding at the end of
Section K 1 (J) the following:
"Aerobic systems shall be required for the direct disposal of sewage to
groundwater."
(29) Amending Section K 2. Appendix K is amended by amending Section K 2 to
read:
"K 2 Capacity of Septic Tanks.
The liquid capacity of all septic tanks shall conform to Tables K -2 and K -3 as
determined by the number of bedrooms in dwelling occupancies and the
estimated waste /sewage design flow rate or the number of plumbing fixture
units as determined from Table 7 -3 of this Code, whichever is greater in other
building occupancies. The capacity of any one septic tank and its drainage
system shall be limited by the soil structure classification, as specified in Table
K -4."
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(30) Amending Section K 3. Appendix K is amended by amending Section K 3 to
read:
"K 3 Area of Disposal Fields and Seepage Pits.
The minimum effective absorption area in disposal fields in square feet (m of
sidewall, shall be predicated on the required septic tank capacity in gallons
(liters) and /or estimated waste /sewage flow rate, whichever is greater, and shall
conform to Table K -4 as determined for the type of soil found in the
excavation. The minimum effective absorption area could also be based upon a
flow of 200 gallons per bedroom per day in accordance with Table K -6. Soil
percolation tests shall be conducted at a minimum depth of three feet."
(31) Amending Section K4 (C). Appendix K is amended by amending the first
sentence of Section K4 (C) to read:
"(C) When a percolation test is required, the test shall be conducted at a
minimum depth of three feet, and no private disposal system shall be permitted
to serve a building if that test shows the absorption capacity of the soil is less
than 0.83 gallons per square foot (33.8 L /m or more than 5.12 gallons per
square foot (208 L /m of leaching area per 24 hours."
(32) Amending Section K5 (N)(1). Appendix K is amended by amending Section K5
(N)(1) to read:
"(1) The septic tank shall be certified by IAPMO or a third party certification
body accredited in accordance with ISO Guide 65, entitled "General
Requirements for bodies operating product certification systems. '
(33) Amending Section K7 (C). Appendix K is amended by amending the first
sentence of Section K 7(C) to read:
"(C) Each seepage pit shall be circular in shape and shall have an excavated
diameter of not less than six (6) feet (1,829 mm)."
(34) Amending Table K -1. Appendix K is amended by amending Table K -1, Location of
Sewage Disposal System, as follows:
The minimum horizontal distances are revised to be consistent with Hawaii
Administrative Rules Chapter 11 -62 "Wastewater Systems" distances. The revision to
Table K -1 is limited to increasing from 100 feet to 1,000 feet the minimum horizontal
distance in clear from a water supply well to a disposal field.
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As amended, Table K -1 shall read:
"TABLE K -1
Location of Sewage Disposal System
Minimum Horizontal Distance Building Sewer Septic Tank Disposal Field Seepage Pit
In Clear Required From: or Cesspool
Buildings or structures' 2 feet (610 mm) 5 feet (1,524 mm) 8 feet (2,438 mm) 8 feet (2,438 mm)
Property line adjoining
private property Clear 5 feet (1,524 mm) 5 feet (1,524 mm) 8 feet (2,438 mm)
Water supply wells 50 feet' (15,240 mm) 50 feet (15,240 mm) 1,000 feet (304,800 mm) 150 feet (45.7 m)
Streams and other 50 feet (15,240 mm) 50 feet (15,240 mm) 100 feet' (30,480 mm)' 150 feet' (45.7 m)
bodies of water
Trees - 10 feet (3,048 mm) - 10 feet (3,048 mm)
Seepage pits or cesspools - 5 feet (1,524 mm) 5 feet (1,524 mm) 12 feet (3,658 mm)
Disposal Field - 5 feet (1,524 mm) 4 feet (1,219 mm) 5 feet (1,524 mm)
On -site domestic water
service line 1 foot (305 mm) 5 feet (1,524 mm) 5 feet (1,524 mm) 5 feet (1,524 mm)
Distribution box - - 5 feet (1,524 mm) 5 feet (1,524 mm)
Pressure public water main 10 feet (3,048 mm) 10 feet (3,048 mm) 10 feet (3,048 mm) 10 feet (3,048 mm)
Note: When disposal fields and /or seepage pits are installed in sloping ground, the minimum horizontal distance between any
part of the leaching system and ground surface shall be fifteen (15) feet (4,572 mm).
I Includin porches and steps, covered or uncovered, breezeways, porte cocheres, roofed patios, carports,
Including s p, � s Y, p � P � rP
covered walks, covered driveways, and similar structures or appurtenances.
2 See also Section 313.3 of the Uniform Plumbing Code.
3 All drainage piping shall clear domestic water supply wells by at least fifty (50) feet (15,240 mm). This distance may be
reduced to not less than twenty -five (25) feet (7,620 mm) when the drainage piping is constructed of materials approved
for use within a building.
4 Plus two (2) feet (610 mm) for each additional one (1) foot (305 mm) of depth in excess of one (1) foot (305 mm) below
the bottom of the drain line. (See also Section K 6.)
5 See Section 720.0 of the Uniform Plumbing Code.
6 For parallel construction - For crossings, approval by the Health Department shall be required.
' These minimum clear horizontal distances shall also apply between disposal fields, seepage pits, and the mean high tide
line."
(35) Amending Table K -2. Appendix K is amended by amending Table K -2,
Capacity of Septic Tanks, as follows:
A) Under column "Single- Family Dwellings- Number of Bedrooms ",
delete "1 or 2 and 3" and replace with "4 or less "; also delete "or
6" from "5 or 6 ".
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B) Under column "Multiple Dwelling Units or Apartments -One
Bedroom Each ", delete "3 through 10 ".
C) Delete entire column "Other Uses: Maximum Fixture Units Served
per Table 7 -3 ".
D) Under "Minimum Septic Tank Capacity in Gallons /Liters" delete
the first two rows, amend the third and fourth rows, and delete
rows five through eleven.
E) Delete " *Note: Extra Bedroom, 150 gallons (568 liters) each.
Extra dwelling units over 10: 250 gallons (946 liters) each. Extra
fixture units over 100: 25 gallons (95 liters) per fixture unit."
As amended, Table K -2 shall read:
"TABLE K -2
Capacity of Septic Tanks
Single - Family Multiple Dwelling Minimum
Dwellings — Units or Septic Tank
Number Apartments — One Capacity in
of Bedrooms Bedroom Each Gallons (Liters)
4 or less -- 1,000 (3,785)
5 2 units 1,250 (4,731)
Septic tank sizes in this table include sludge storage capacity and the connection of domestic
food waste disposal units without further volume increase."
(36) Adding Table K -6. Appendix K is amended by adding a new Table K -6 as follows:
"TABLE K -6
Minimum Required Absorption Area
Percolation Rate Required Percolation Rate Required
(min /inch) Absorption Area (min /inch) Absorption Area
Less than or (ft2 /bedroom or Less than or (ft2 /bedroom or
equal to 200 gallons) equal to 200 gallons)
1 70 31 253
2 85 32 257
3 100 33 260
4 115 34 263
5 125 35 267
6 133 36 270
7 141 37 273
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8 149 38 277
9 157 39 280
10 165 40 283
11 170 41 287
12 175 42 290
13 180 43 293
14 185 44 297
15 190 45 300
16 194 46 302
17 198 47 304
18 202 48 306
19 206 49 308
20 210 50 310
21 214 51 312
22 218 52 314
23 222 53 316
24 226 54 318
25 230 55 320
26 234 56 322
27 238 57 324
28 242 58 326
29 246 59 328
30 250 60 330"
Section 17 -48. Reserved.
Section 17 -49. Reserved."
SECTION 9. If any provision of this ordinance or the application thereof to any person
or circumstance, is held invalid, such invalidity shall not affect other provisions or applications
of the ordinance that can be given effect without the invalid provision or application, and to this
end, the provisions of this ordinance are declared to be severable.
SECTION 10. Nothing in this ordinance or in the Uniform Plumbing Code hereby
adopted shall be construed to affect any suit or proceeding impending in any court, or any rights
acquired, or liability incurred, or any cause or causes of action acquired or existing, under any
act or ordinance; nor shall any just or legal right or remedy of any character be lost, impaired or
affected by this ordinance.
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SECTION 11. This ordinance shall take effect ninety days after approval.
INTRODUCED BY:
/ ,
f O IL : 9. ' , C O OF H A AI`I
, Hawai`i
Date of Introduction:
Date of 1 Reading:
Date of 2" Reading:
Effective Date:
REFERENCES Comm. , 875
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