HomeMy WebLinkAboutCOM 0178.001 2006-2008 CASEY JARMAN
County Clerk ~ ~•'•9
Mailing Address: Business Address:
(Former County Bui[din~ • •'•ho~,N~«S 333 Kilauea Avenue, Second Floor
25 Aupuni Street Ben Franklin Building
Hilo, Hawaii 96720 Hilo, Hawaii 96720
County of Hawai `i
Office of the County Clerk
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Telephone: (808) 961-8255 Facsimile: (808) 96/-8912
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February 9, 2007 =a ~
Council Members
Hawaii County Council
25 Aupuni Street cr>
Hilo, Hawaii 96720
RE: Transmitting a Request to Amend Bi1152.
An Ordinance Amending Chapters 23 (Subdivision Control Code), 25 (Zoning
Code) and 27 (Flood Control Code), Hawaii County Code 1983 (2005 Edition, as
amended), Relating to Stormwater Management.
Bill 51 relates to Flood Control and Bi1152 relates to Stormwater Management. Both
bills propose amendments to section 27-20, Hawaii County Code, relating to "Standards
for subdivisions, and other developments." The proposed amendments to this section
differ slightly in the two bills. To rectify this situation, the Planning Department, per
Planning Director Chris Yuen, and the Department of Public Works, per Engineer Galen
Kuba, have agreed on proposed language for this section. Consequently, Mr. Yuen has
asked that SECTION 4 of Bi1152 be amended by replacing the text of section 27-20,
contained within Bi1152, with the replacement language they have agreed upon.
This proposed change to section 27-20 removes the following language from subsection
(e):
"(e) If fill is used to elevate the site of any lot in a subdivision above the
base flood elevation, the original elevation of the site prior to filling
and the final elevation of the site after filling shall be certified by a
professional civil engineer or land surveyor cun•ently registered in the
State of Hawai`i."
Comm. No. ~ ~ /
Serving the /nterests of the People of Ourlsland Ref. To: ~L "
Hawaii County is an EgualOpportunity Provider and Employer Ref. Uate FEB 13 ~nn~
If amended as proposed in both bills, section 27-20 would read as follows:
"Section 27-20. Standards for subdivisions[.] and other developments.
(a) All subdivisions and other developments within areas of special
flood hazards and flood-prone areas shall:
(1) Be consistent with the need to minimize flood damage;
(2) Have public utilities and facilities, such as sewer, gas,
electrical, and water systems, located and constructed to
minimize flood damage; and
(3) Have adequate drainage provided to reduce exposure to
flood damage.
(b) All subdivision and other development applications shall identify
the areas of special flood hazards and base flood elevations on the
proposed site. If such information is not provided by the Flood
Insurance Rate Maps, the director of public works may request and
the applicant shall provide such information.
(c) Finally approved subdivision plans for subdivisions within areas of
special flood hazazds shall provide base flood elevations within the
lots.
(d) [
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Subdivisions and other developments within areas designated as
Zone A or eeneral flood plain shall comply with the following;
Obtain all required permits, together with those re ated
by other governmental agencies authorized by Federal or
State law, including section 404 of the Federal Water
Pollution Control Act Amendments of 1972, 33 U.S.C.
1334, for all proposed construction, other developments,
and the placement of manufactured homes.
2
For all proposed developments and/or subdivisions greater
than either fifty lots or five acres, the developer and/or
subdivider shall include base flood elevation data within
their proposal.
ComRly with the requirements of section 27-24.
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All developments requiring a site drainage elan under section 25-
2-72(3) shall submit such a plan for review and approval by the
director of public works. The site drainage plan shall comply
sections 27-20(a) and (b) and section 27-24, and shall include a
storm water disposal system to contain run-off caused by the
proposed development, within the site boundazies, up to the
expected one-hour, ten yeaz storm event, as shown in the
Department of Public Works "Storm Drainage Standazds," dated
October 1970, or anv approved revision, unless those standards
specify a greater recurrence interval. The amount of expected
runoff shall be calculated according to the Department of Public
Works "Storm Drainage Standards," dated October 1970, or anv
approved revision, or by any nationally-recognized method
meeting with the approval of the director of public works. Runoff
calculations shall include the effects of all improvements.
(fl Storm water shall be disposed into drywells, infiltration basins, or
other approved infiltration methods. The development shall not
alter the general drainage pattern above or below the
development."
After discussing this matter with Mr. Yuen and Mr. Kuba, LRB respectfully submits this
information to facilitate the council's review of these bills.
Sincerely,
h USI.t.`LJ C l~tiJ
Leslie Chow
Legislative Specialist
Serving the /nterests of~e People of Our /sland
Hawaii County is an Equa[ Opportunity Provider and Employer