HomeMy WebLinkAboutCOM 0875.001 2008-2010KENNETH G. GOODENOW
County Clerk
July 20, 2010
(1)
County of Hawai`i
Office of the County Clerk
25 Aupuni Street, Suite 1402 • Hilo, Hawai`i 96720
(808) 961 -8255 • Fax (808) 961 -8912
TO: J Yoshimoto, Chair
and Members of the Hawai`i County Council
FROM: "tCenneth Goodenow, County Clerk
RODNEY OSHIRO
Deputy County Clerk
RE: Bill 269; Ramseyer Format Version of Amendments to Uniform Plumbing
Code 2006 Edition
Bill 269 amends Chapter 17 (Plumbing) of the Hawai`i County Code.
Section 7 of Bill 269 repeals Article 3 of Chapter 17 of the Hawai`i County Code, which
is replaced by a new Article 3 (Section 8 of Bill 269). Article 3 pertains to the adoption of
the Uniform Plumbing Code 2006 Edition (UPC). Article 3 further provides for
amendments to the contents of the UPC (items 1 -36).
Those amendments to the UPC are cleanly incorporated into Bill 269, as they would
appear in the County Code should Bill 269 be enacted as an ordinance.
For illustrative purposes only, the amendments to the UPC, as provided in Section 8 of
Bill 269 (codified as section 17 -47 of the County Code), are indicated below via
Ramseyer format.
NOTE: Section 412.0, Table 4 -1, and Table A are all proposed for deletion (item (6)
herein). This section and tables were not included in this memorandum as bracketed and
stricken through indicating deletion. To view this material, please see UPC pages 33 -38.
The amendments to the Uniform Plumbing Code 2006 Edition, as contained in Section 8
of Bill 269, read as follows (material to be deleted is bracketed and stricken through,
material to be added is underscored):
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
Comm- No. • 7 C.
Ref. To: W VZC
Ref. D.gte.. Jul 2.0 -ZOt4
inside the walls of the building and conveys it to the building sewer
beginning [two (2) fcct (610 mm)] 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:
"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:
NOTE: Section 412.0, Table 4 -1, and Table A are not included in this memorandum as
bracketed and stricken through indicating deletion. To view this material, please see
UPC pages 33 -38.
"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."
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(7) Amending Section 715.1. Section 715.1 is amended to read:
"715.1 The building sewer, beginning [two (2) feet (610 mm)] 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."
(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 [Table D 1 (in
Appendix D)] 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.
1' 301'17
si'l't'!' , 1rj1'lllc(! . 11 ?l:'lh /lif 'llls /0 2006 l PC (0 provid, c I !: r li
(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[7] 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 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
1'., c 4 o I l 7
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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 [and 100
percent expansion ar a] 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 [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 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 [five
(5)] 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 [Table] Tables 16 -2[ and 16 -3, the
proposed site may be subjected to percolation tests acceptable to the
I' i!L' ' ol 1
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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
z
L /m) or more than five and twelve hundredths (5.12) gallons per
2
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)."
(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
ul 17
Ko,,,\c_i ci. lur/no/ I nt r,clnr, „1 !u 2006 ( I'( u,c i)rr,riclrci i„ /3i/1 269
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.
(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:
HAW ) 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.
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{-{B-)](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.
[(C)- Ii'rigation/disposal fields shall
slopes, irrigation/disposal lines shal
(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."
13) Changed the values for the following Irrigation/Disposal Field:
- Building Structures
Water Supply Wells
- Disposal Field
As amended, Table 16 -1 shall read:
1'a_lc80117
rr to 200 (l'( cry proric /rc/ irl 1/11/ 2(9
Minimum Horizontal Distance
in Clear Required From:
Holding Tank
Feet (mm)
Feet
Irrigation/
Disposal Field
(mm)
Building structures'
5
(1,524 mm)
PI 5
[(610)] (1,524 mm)
Property line adjoining private
property
5
(1,524 mm)
5
(1,524 mm)
Water supply wells
50
(15,240 mm)
[] 1000
[(30,480 mm)] (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 [and 100%
5
(1,524 mm)
f4 5 (1,524
expansion
area]
[(1,219
mm)] 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)
"Table 16 -1
Location of Gray Water System
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.
The distance may be reduced to zero feet for aboveground tanks when first approved by the authority
having jurisdiction.
Assumes a 45- degree (0.79 rad) angle from foundation.
0
7
Where special hazards are involved, the distance required shall be increased as may be directed by the
authority having jurisdiction.
These minimum clear horizontal distances shall also apply between the irrigation /disposal field and the
ocean mean higher hightide line.
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."
I'a.!L c) I 7
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Type of Soil
Maximum Emitter
Minimum Number of
Emitters per gdp of
Discharge (gal/day)
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"
(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
(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 [
controlled use that would not otherwise occur. The level of trctmcnt and
quality of the reclaimed water shall be approved by the public hcalth
Authority Having Jurisdiction], 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.
P,wt.' lO „ l 7
X11) 1(11 lU 2006 1 1'(_ us provided in Bill '61)
[For the purpose of this chapter, terti
water that is adequately oxidized, clarified, coagulated, filtered, and
disinfected so that at some location in the tr atment process, the seven
(7) day median number of total coliform bacteria in daily samples does
not exceed two and two tenths (2.2) per one hundred (100) milliliters,
and the number of total coliform bacteria does not exceed twenty three
illiliters in any sample. The water shall be
filtered so that the daily average does not exceed two (2)
]
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."
(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) [
additional seepage pits or subsurface drain fields, equivalent to at least
one hundred (100) percent of the required original system, may be
installed if the original system cannot absorb all the sewage. No
such division or structure impairs the usefulness of the one hundred
(100) percent expansion ar .] 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
i'a'e 1I or 17
1171/11 I171cIiclUlci11■ I() 20)6 (7'(, 0,N jlo11'!(l('(l /Il IN/ ( :9
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 [or apartment units] 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."
(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 2 ){, and in seepage pits 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[, and shall be as follows:], 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.
fifty (150) square fcet (14 m of trench bottom shall be provided
for ach system exclusive of any hard pan, rock, clay, or other
impervious formations. Sidewall ar in excess of the required
inches (914 mm) below the leach line may be added to the trench
arc permitted in lieu of trenches, the area of
1',igL. 1 cal 17
A J0111101 _'U1) l'( l,�' proriti 11l Bill 269
(5)
each such bed shall be at least fifty (50) percent greater than the
tabular requirements for trenches. Perimeter sidewall arca in
excess of the required twelve (12) inches (305 mm) and not to
exceed thirty six (36) inches (914 mm) below the leach line may
be added to the trench
i0 - .
(3) No excavation for a 1 ach line or leach bed shall extend within five
(5) feet (1,521 mm) of the water table nor to a depth where sewage
may contaminate the underground water stratum that is usable for
domestic purposes.
(1,521 mm) separation requirement may bc reduced by the
Authority Having Jurisdiction. The applicant shall supply
(1) The minimum effective absorption area in any scepage pit shall be
calculated as the excavated sidewall area below the inlet exclusive
of any hardpan, rock, clay, or other impervious formations. The
minimum required area of porous formation shall be provided in
(10) feet (3, 048 mm) of the water table nor to a depth where
sewage may contaminate underground water stratum that is usable
for domestic purposcs.
the groundwaters arc grossly degraded, the ten (10) foot
(3,018 mm) separation requirement may be reduced by the
Authority Having Jurisdiction. The applicant shall supply
evidence of groundwater depth to the satisfaction of the
Authority Having Jurisdiction.
L aching chambers shall be sized on the bottom absorption area
(nominal unit width) in square fcct. The required area shall bc
- .1. 1..
(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."
1"
id' 17
„; c! I„r n rn,, nrr,n 7)H6 1 l'( los p,•c,riciccl i„ liill 2(69
Minimum Horizontal Distance
In Clear Required From:
Building Sewer
Septic Tank
Disposal Field
Seepage Pit
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)
[100 foot (30,180
150 feet (45.7 m)
mm)]
1,000 feet (304,800 mm)
Streams and other
bodies of water
50 feet (15,240 mm)
50 feet (15,240 mm)
100 feet (30,480 mm)'
150 feet (45.7 m)
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)
(32) Amending Section K5 (N)(1). Appendix K is amended by amending
Section K5 (N)(1) to read:
"(1) [Manufactured or prefabricated septic tanks shall comply with all
approved applicable standards and be approved by the Authority
Having Jurisdiction.] 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 [four (4) feet (1,219 mm).] 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 Hawai`i
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.
As amended, Table K -1 shall read:
"TABLE K -1
Location of Sewage Disposal System
I'agc 14 t,1 17
rrr r�.r tor'nUll . Intrutlnrcnry to 2006 I /'(', <r.v prr,i•icicc(irr 13/1/ .:6O
Pressure public water main
10 fee (3,048 mm)
10 feet (3,048 mm)
5 feet (1,524 mm)
10 feet (3,048 mm)
Distribution box
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).
Including porches and steps, whether covered or uncovered, breezeways, roofed porte cocheres, roofed patios,
carports, covered walks, covered driveways, and similar structures or appurtenances.
See also Section 313.3 of the Uniform Plumbing Code.
4
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.
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.)
See Section 720.0 of the Uniform Plumbing Code.
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 ".
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:
ul 1 7
c'I' /ii!'lllcl( .1111t'1h1111c'11l1 (fl 2006 1 ,/'(
/ / 1/1 hill ‘.
5 feet (1,524 mm)
10 feet (3,048 mm)
Single - Family
Dwellings —
Number
of Bedrooms
Multiple Dwelling
Units or
Apartments — One
Bedroom Each
Uscs:
Minimum
Septic Tank
Capacity in
Gallons (Liters)
[Other
Maximum Fixture
Units Served
Table 7 3
per
[1 or 2]
(ft2 /bedroom or
-14
(ft2 /bedroom or
e 1 ual to
200 ' allons
[750 (2,838)]
[3]
1
20
31
253
[1,000 (3,785)]
4 or less
32
25
[1,200] 1,000 [(1,152)]
(3,785)
[2 units]
5 [er-6]
[3] 2 units
33
[500] 1,250 [(5,678)]
(4,731)
5
[4]
44
267
6
[2,000 (7,570)]
36
[6]
55
[2,250
37
(8,516)]
[6]
60
[2,500
(9463)]
[7]
70
[2,750 (10,109)]
[g]
80
[3,000 (11,355)]
[9]
90
[3,250
(12,301)]
[-1-0]
490]
[3,500 (13,218)]
Percolation Rate
Re • uired
Percolation Rate
Re • uired
(min /inch)
Absorption Area
(min /inch)
Absorption Area
Less than or
(ft2 /bedroom or
Less than or
(ft2 /bedroom or
e 1 ual to
200 ' allons
e • ual to
200 ' allons
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
"TABLE K -2
Capacity of Septic Tanks[ * —]
[ *Note:
Extra dwelling units over 10: 250 gallons (946 liters) each.
]
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
l',2c lc, or 1
rl.�c i c'r Jc,rnru/ fr, 2006 1.1'( u.. l)rc,viclrcl /11 1]ill 2(V
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"
If you have any questions related to this memorandum, please contact the Legislative
Research Branch.
KG /jdh
1i4 /!]1.\l'l' 101'111c11 . I111Cllc /!!!c'171J to 2006 ( f'(. U.�' pI'ol'1c/c'c/ /17 Mil 26()