HomeMy WebLinkAboutGrading and Drainage Permit - General Conditionsof
EDINA
W A S H I N G T 0 N
Development Services Department
Grading and Drainage Permit General Conditions
GD-001 Temporary erosion and sedimentation control facilities approved bythe City shall be installed bythe
applicant and inspected bythe City priorto starting construction activity. Facilities shall be properly
maintained by the applicant at all times for the duration of the project.
GD-002 No -sediment -laden water shall enter Lake Washington, streams, the public storm drain system, or
adjacent properties.
GD-003 The City may require additional measures to be employed as conditions warrant addressing stormwater
runoff. Such conditions may include cleaning sediment from the project out of downstream catch basins.
GD-004 The project shall comply with Construction Stormwater Pollution Prevention (CSWPPP) Elements #1
through #13 set forth in the Department of Ecology Stormwater Management Manual for Western
Washington (July 2019).
GD-005 Stormwater detention ponds may be used as interim sedimentation facilities if cleaned and restored to
approved plan conditions following completion of all on -site construction.
GD-006 Stormwater shall be routed through a catch basin prior to discharging to the public storm system in order
to facilitate the easy removal of transported sediments and debris.
GD-007 Removal of trees is not authorized under this permit. Protection shall be implemented for the
preservation of significant trees in accordance with Section 16.52 of the Medina Municipal Code and any
conditions set forth in this permit.
GD-008 Any grading or excavation within a tree protection zone is prohibited.
GD-009 Hand digging, or other approved non-destructive methods are required for trenching near significant
trees that have been identified as being saved.
GD-010 Coordination for tree protection is required with the Medina Tree Consultant prior to starting and during
construction activity.
GD-011 All activities associated with this permit shall comply with the conditions set forth in the Construction
Activity Permit approved for this project.
GD-012 An approved Medina Right -of -Way Permit is required prior to working in the City right-of-way. All work
shall comply with the approved right-of-way drawings and the Medina Right -of -Way Construction
Requirements.
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GD-013 All construction -related activities shall comply with the recommendations set forth in the Critical Areas
Report and/or geotechnical report approved by the City.
GD-014 A geotechnical engineer shall monitor construction activity affecting geologically hazardous areas to
ensure construction activity does not increase the threat of a geologic hazard to adjacent properties
beyond predevelopment conditions and will not adversely impact other critical areas or their buffers.
GD-015 The geotechnical engineer of record shall perform construction field -monitoring, compaction testing, and
file field reports with the City of Medina. Upon conclusion of the project, the geotechnical engineer of
record shall provide a letter to the City indicating that project clearing, earthwork, drainage, and soil
retaining structures were constructed in accordance with the geotechnical engineer's recommendations.
GD-016 The Contractor shall consult with the geotechnical engineer of record if field conditions differ from
geotechnical reports.
GD-017 New vegetation shall be re-established as soon as possible and any areas of bare soil between plantings
shall be mulched, or otherwise protected. During winter construction, any new hydroseeded areas shall
be covered with clear plastic to facilitate grass growth. Protect bare slope areas, before vegetation, with
plastic sheeting or mulch.
GD-018 The Contractor shall not allow discharge or runoff onto or above steep slopes. Contractor shall utilize Best
Management Practices (BMPs) to reduce potential of runoff to come into contact with exposed soils. All
construction stormwater discharge shall first be routed through Baker tank or sediment trap.
GD-019 Approval of a downspout infiltration system shall obligate the owner to repair, replace, or reconstruct the
infiltration system if it fails to operate as intended.
GD-020 Construction of concrete walls, retaining walls or rockery walls are not authorized under this permit. A
separate building permit is required.
GD-021 No construction activities are authorized on neighbor's side of property lines.
GD-022 Contractor shall employ best management practices to protect neighbor's trees and shrubs located along
the property lines.
GD-023 Design engineer shall test the pump system operation after construction and submit a letter of
acceptance to the City of Medina prior to final permit approval.
GD-024 Pumped systems that convey water from roof drains and other surface water runoff are required to be
served by a duplex -pump system with automatic alarm and automatic backup power facilities. Footing
drains and basement ring drains that do not convey roof or surface water runoff may be served by a
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simplex pump system without automatic alarm and automatic backup power facilities. Private property
owners served by the pump system assume all responsibilities for all claims for injuries or damage due to
operation or non -operation of the pump system.
GD-025 Pump systems shall be owned, operated, maintained, repaired, and replaced (as needed) by property
owner(s) served by the pump system. Force mains from the pump system shall be connected to a catch
basin located on the private property and gravity flow to the public storm drainage system at a
connection point approved by the City.
GD-026 Construction of a fence or gate is not authorized under this permit.
GD-027 An onsite preconstruction meeting with City staff is required prior to mobilization for the construction
project.
GD-028 A copy of the approved plans, geotechnical reports, and permit must be kept onsite at all times.
GD-029 A copy of the approved plans, permit and approval letter must be kept onsite at all times.
GD-030 Construction parking or truck queuing is prohibited within City of Medina rights -of -way.
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