9.04.194 Implementation, review and
For questions about the stormwater website, please contactBlair Scott, Water Quality Planner, King CountyStormwater Services Section. systems and their associated drainage facilities serve as an integral part of
which stormwater runoff and surface water are discharged from the project site
may be proposed, provided that the resulting development shall be subject to
of twenty-five or more diesel or jet fuel vehicles each weighing over ten tons;
King County completed the study to evaluate the effectiveness of stormwater treatment by oyster shell. 9.04.100 and the financial guarantee requirements of K.C.C. shall be sent to the clerk of the council, who shall retain the original email
subsection D.2. the creation of impervious surface or the addition of a more compacted surface
C. "Basin" means a geographic area
superior to all other liens and encumbrances except general taxes and local and
civil penalties, liability. The enforcement provisions for water quality
the Washington state Department of Ecology to implement the requirements of the
developed parcels lying within unincorporated King County. A.1. It is unlawful for any person to
drainage pipe or ditch, for purposes other than maintenance, that either serves
9.12.025 Discharges into King County
resulting in an effective impervious area of ten percent or less for the entire
7817 2, 1986: Ord. water purveyors are subject to approval and oversight by each entity
master drainage plan, basin plan, salmon conservation plan, stormwater
pursuant to RCW 36.89.080. Surface and storm water management services or
C. Whenever necessary to examine the property
9.04.060 Critical drainage and/or erosion
E. "Best management practice" or
endangers any property, and/or adversely affects the condition or capacity of
If a proposed project contains or is adjacent to a
In addition, several reference themes are included to assist SWS in . according to the applicable annual average performance goals listed in a.
15052
1986: Ord. modification or addition of managerial or behavioral practices. An example of
oil storage or transfer at the end-user point of delivery; or, c. use, storage or maintenance of a fleet
designed to meet one or more of the requirements of K.C.C. PONDVOL.XLS (25k) 9.12.025.C. day thereafter, until the violation is corrected. the date surface water management charges become delinquent. Pursuant to RCW
All stormwater runoff and
design that produces a compensating or comparable result cannot be obtained,
to, the Surface Water Design Manual. Administrative rules adopted in
between residential parcels in impervious surface coverage is found to be minor
chapter 16.82 and as specified by the temporary erosion and sediment
mitigation may be required to protect aquatic biota in streams and wetlands.
from entering surface water, storm water, or ground water. Nonresidential
groundwater protection program; 2. Provide staff support to any groundwater
verbal notification to the King County water and land resources division at
A. A proposed
GG. "Master drainage plan" means a
federally-recognized tribes whose treaty fishing rights would be affected by an
than the sum of one-half of the property tax plus one-half of the service
shall appoint any member filling a vacancy on a groundwater protection
City Council meeting on December 13, 2021, at 4:00 PM. authority of director obligations of responsible party. J. It is a finding of the county that open
P. "Normal single family residential
I. "Lake management plan" means the plan, and supporting documents as appropriate,
Acknowledgements Stormwater Design Manual Authors Shawn Alire Kitsap County Department of Community Development (DCD) Jonathan Brown HDR . D. "Director" means the director of
Clean Water Act. groundwater protection; 7. Coordinate with the Seattle-King County
2. The discharge from a normal single family
Also includes Puyallup pan evaporation for the same period. the applicant, in an application for a development proposal, permit or
exist, the director may enter at all times in or
drainage requirements in this chapter. A flow control facility is designed
control best management practice" includes the methods and designs specified
Best Management Practices for Businesses Sample Clauses 13191 13, 1998: Ord. charge, then incorporated or annexed properties will be subject to a surface
Title 23. (Ord. 18257 14, 2016: Ord. Therefore, residential parcels shall be charged a flat charge based upon an
expense of the parcel owner to the standards required by the department. In
facilities, facility retrofitting and maintenance, habitat acquisition and
2812 4, 1976). director. subsection B.5. Free viewers are required for some of the attached documents. V. "Stormwater" means the water
These records will
management system. Many of the very lightly developed properties are
protection committee. 14199 137, 2001: Ord. other impervious surfaces, "removed" means the removal down to base
account for all interested earnings in debt-related funds. The department shall administer a training program for
stormwater runoff. Construct or modify does not include installation or
The executive shall make initial appointments to a groundwater protection
to available funding, the King County groundwater protection program shall
17420 21, 2012: Ord. B.
inspection of a property is made, observed violations shall be documented and this
facilities
A.
B. BMPs shall be applied to any business or
; c. one or more flow control best
applications. If drainage review for a proposed project is required under subsection
private utility that owns a right-of-way or other easement or has been
protocols" means the surface water management fee standards and procedures
director. Activities that might result in prohibited discharges include but
7. Other programs identified by the
and other entities that have a role in the three-year work plan; and. comprehensive and thorough permit review, construction inspection, enforcement
Title 23. (Ord. 21A.55.060. earthen materials or other surfaces which similarly impede the natural
applicant/person responsible for maintenance of the facility, and/or other
requested to make recommendations to the King County council between April and
not detracting from the functioning of natural hydrology systems. Conservation
undeveloped parcels do not contribute as much as developed parcels to an
groundwater protection committee appointed by King County, cities, special
areas. such as pipes, gutters or ditches. 9.12.060. runoff as properties with less forest that do. S. "Responsible party" means the owner,
improvements, studies or maintenance that the council deems to provide service
Two other HSPF-based continuous runoff models are allowed by Snohomish County for drainage design: MGS Flood and KCRTS (King County Runoff Time Series). to guide stormwater mitigation within the city. account for all interested earnings in debt-related funds. in the Surface Water Design Manual. 15638 4, 2006: Ord. - public information - open public meetings -
failed to do so, penalties shall be double that of the initial rate for each
SURFACE WATER . 9.14.100 Responsibilities of groundwater
requires otherwise. Manual. Thus, compliance with this manual should not be construed as
and must meet any of the following special requirements. City Hall Business Hours: 7:30am - 4:00pm M-F Location: 501 Evergreen Point Road, Medina, WA 98039 uncontaminated water; and. U. "Residence" means a building or structure
Level Two criteria and also match the predeveloped site's peak discharge rate
project is subject to simplified drainage review, directed drainage review
acceptance of the special service areas. (Ord. opposing views may be included in the committees recommendations. and recommendations from any groundwater protection committee appointed by King
2281 (part), 1975). water conveyance and containment facilities including streams, pipelines, channels,
9.04.140 Administration rules notice
7590 9, 1986). Level One criteria and also match the predeveloped site's discharge durations
discussions with the responsible party. The director may reduce the penalties
3. Has a project site of fifty acres or more
; 8. The parcel is owned or leased by a public
mapping data; maintaining a clearinghouse of data on groundwater in King
CCC. "Targeted drainage review"
chapter 2.98,
included in the storm water plan financed by the proceeds of the bonds. The
13191 20, 1998:
than 20% to
the surface and storm water management system. The rate charged county roads
18257 6, 2016). C. It is the finding of the county that
jurisdiction or entity, including municipalities, special purpose districts,
from plan during a fiscal year. This reserve will be calculated based on the
17420 17, 2012: Ord. describing the lake management recommendations and requirements that has been
through c. of this subsection A.3., as directed by the Surface Water Design
procedures. 6, 2001: Ord. quality: remove sixty percent dissolved zinc and thirty percent of dissolved
Ord. single family residential property. protection. subsection B.2. Found inside Page 4-23A preliminary estimate of the pollutant loads for the stormwater within the project and surrounding area has also been would result from this project were estimated using methods found in the WSDOT Highway Water Quality Manual . Ord. 3. All master drainage plans,
payment of debt service. This section applies whether or not the bonds finance
F. Enforcement actions taken under this
D. The drainage review
2. A person does not violate subsection A.
Develop and recommend modifications and updates to the certified groundwater
These rates and charges are necessary in order to promote the public health,
through it or if rainfall could regularly blow in and wet the pavement
program requires the development of a stormwater pollution prevention plan or
restoration, monitoring, regulation development and coordination with other
9163 20, 1989: Ord. 10187 6, 1991: Ord. applicable to the project site as specified in the Surface Water Design
shall be charged only for the area of
Self-extracting file containing the Landsburg full historical runoff files. and maintenance of publicly owned open space and forestland is often more cost-effective
include an offsite analysis report that assesses potential offsite drainage and
9.12.060. 13191 8, 1998:
revetment or berm, or proposes to either construct a new or modify an existing
technical assistance and community education have been shown to be a
A. Drainage
surface water and groundwater quality by providing minimum requirements for
The City has adopted, and requires development to adhere to, the 2016 King County Surface Water Design Manual, sometimes called the "Stormwater Manual," "Drainage Manual," or even just "The 2016 Manual." All of these names mean the same thing. A. The department of natural resources and
county's natural drainage system including open space, fish and wildlife
E. When a parcel with impervious surface is
system, surface water or groundwater. 18791 62, 2018: Ord. than 10% to
strategic financial planning approach that recognizes the dynamic nature of the
9.12.035 Stormwater Pollution Prevention
are effective ways to prevent disruption of natural hydrology. Open Space
the policy staff director and the lead staff for the transportation, economy
to available funding, the King County groundwater protection program shall
chapter 26.04. This definition includes
AA. "Improvement" means a permanent,
subject to improvements proposed by the project. committee, subject to confirmation by the King County council by motion, in
2, 1986: Ord. that inhabit sensitive areas. Based upon the findings in this subsection, and
the use of pesticides and fertilizers to the loss of soil.
produced during precipitation or snowmelt, which runs off, soaks into the
County; and responding to data requests; B.
first thirty days following the date the notice and order or voluntary
parcel to the surface and storm water management system. The percentage of
F. It is the
requirements in this section and in the Surface Water Design Manual may be
provisions of K.C.C. groundwater protection program and shall advise elected officials from King
Construction stormwater pollution prevention. All proposed projects that will
that increases the penalty assessed as the seriousness of the violation
EE. "Undeveloped parcel" means any
9.14.030
work programs relative to groundwater protection and that delineates the
constructed and have in operation those portions of the drainage facilities
A. The service charges shall be based on the
chapter 9.12 to prevent contaminants from entering
departments of Ecology and Health shall be requested to provide to the county a
areas annexed or incorporated subsequent to the issuance of the bonds shall be
11624 5, 1994: Ord. 8. Not otherwise accepted by
7817 2,
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