king county, wa operation and maintenance manual

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CPH Project No. 0164-17-001 July16, 2010 CP|H CONSULTANTS Page 1 Enumclaw Recycle King County, WA Operation and Maintenance Manual Owner: Ron Shear P.O. Box 1373 Enumclaw, WA 98022 Prepared By: CPH Consultants Bryce Bessette, PE 11431 Willows Road NE, #120 Redmond, WA 98052 (425) 285-2390 May 22, 2018 CP H CONSULTANTS

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Page 1: King County, WA Operation and Maintenance Manual

CPH Project No. 0164-17-001 July16, 2010 CP|H CONSULTANTS Page 1

Enumclaw Recycle King County, WA

Operation and Maintenance Manual

Owner: Ron Shear

P.O. Box 1373 Enumclaw, WA 98022

Prepared By: CPH Consultants

Bryce Bessette, PE 11431 Willows Road NE, #120

Redmond, WA 98052 (425) 285-2390

May 22, 2018

CP H

C O N S U L T A N T S

Page 2: King County, WA Operation and Maintenance Manual

Stormwater Management Facility

Operation and Maintenance (O&M) Manual

for

Enumclaw Recycle

Located at:

Enumclaw-Franklin Rd SE Enumclaw, WA 98022

Prepared for:

Ron Shear P.O. Box 1373, Enumclaw, WA 98022

Prepared by:

CPH Consultants – Bryce Bessettee, PE 11431 Willows Road NE, #120, Redmond, WA 98052

(425) 285-2390

Page 3: King County, WA Operation and Maintenance Manual

Stormwater Management Facility

Operation and Maintenance (O&M) Manual

Table of Contents

I Contact Information II Compliance with King County Code III. Maintenance IV. Preventative Measures to Reduce Maintenance Costs V. General Location and Description of Stormwater Management Facilities VI. Inspecting Stormwater Management Facilities VII. Maintaining Stormwater Management Facilities VIII. Maintenance Documentation

Appendices

Appendix A – Maintenance Activity Log Appendix B – Site Plan Appendix C – As-Built Drawings Appendix D – Maintenance Standards

Page 4: King County, WA Operation and Maintenance Manual

Stormwater Management Facility Operation and Maintenance (O&M) Manual

I Contact Information

Owner: Buckley Recycle Center, Inc

Phone: (253) 223-8586 Email: [email protected] Maintenance Responsible Party: _____________________ Phone __________________________________ Email ____________________________________ Emergency Contact: Ron Shear Phone: (253) 223-8586 Email: [email protected]

II Compliance King County Code

Maintenance and operation of all drainage facilities is the responsibility of the property owner, except for those facilities which King County assumes maintenance and operation as described in King County Code 9.04.115 and 9.04.120.

III. Maintenance

This O&M Manual shall be kept onsite. Maintenance logs should be kept for a record of routine maintenance. A sample Maintenance Log is provided in Appendix A.

IV. Preventative Measures to Reduce Maintenance Costs

The most effective way to maintain your water quality facility is to prevent the pollutants from

entering the facility in the first place. Common pollutants include sediment, trash & debris,

chemicals, dog wastes, runoff from stored materials, illicit discharges into the storm drainage

system (like car wash or pressure washing runoff) and many others. A thoughtful maintenance program will include measures to address these potential contaminants, and will save money

and time in the long run. Key points to consider in your maintenance program include:

• Educate property owners/residents/tenants to be aware of how their actions affect water quality, and how they can help reduce maintenance costs.

• Keep properties, streets and gutters, and parking lots free of trash, debris, and lawn clippings.

• Ensure the proper disposal of hazardous wastes and chemicals.

• Plan lawn care to minimize the use of chemicals and pesticides.

Page 5: King County, WA Operation and Maintenance Manual

• Sweep paved surfaces and put the sweepings back on the lawn.

• Be aware of automobiles leaking fluids. Use absorbents such as cat litter to soak up drippings – dispose of properly.

• Re-vegetate disturbed and bare areas to maintain vegetative stabilization.

• Clean out the upstream components of the storm drainage system, including inlets, storm sewers and outfalls.

• Do not store materials outdoors (including landscaping materials) unless properly protected from runoff.

• Close the covers on dumpsters to prevent liquids from leaking into the storm system. This project proposes stormwater conveyance, oil/debris separator, presettling ponds, catch basins, and infiltration ponds/sand filters that are expected to be maintained on-site by the property owner. Most of the site runoff and surface flows are collected by on-site conveyance ditches. Runoff collected from the west asphalt area labeled “paved processing area” in Appendix B will be passed through a Contech Vortclarex VCL60-1 while runoff collected from the east asphalt area labeled “parking and access” in Appendix B will pass through a Contech Vortclarex VCL30 prior to discharge. Both of the oil/water separators will be preceded by a Contech Stormgate Manhole High Flow Bypass which will function as a flow splitter, delivering only the off-line water quality flows to the oil/water separators. From here, runoff will be routed through the conveyance ditches before discharging to a presettling pond then an infiltration pond/sand filter. Removable lids are provided on the catch basins. The specific maintenance requirements and conditions for the stormwater facilities must be followed are outlined in Appendix D of this report.

V. General Location and Description of Stormwater Management Facilities

The development area will drain to proposed infiltration ponds located on the east and west sides of the project site. To mitigate additional runoff on the eastern side of the site full dispersion trenches will be implemented Maintenance personnel may use the site plan located in Appendix B containing the locations of the Stormwater Management facilities.

VI. Inspecting Stormwater Management Facilities

The King County inspects private stormwater systems.

VII. Maintaining Stormwater Management Facilities

Stormwater management facilities must be properly maintained to ensure that they operate

correctly and provide the water quality treatment for which they were designed. Routine

maintenance performed on a frequently scheduled basis, can help avoid more costly rehabilitative

maintenance that results when facilities are not adequately maintained. The Maintenance

requirements are contained in Appendix D. These requirements should be updated to reflect

changes and updates to these facilities.

Routine Work

The majority of this work consists of inspection, sweeping, mowing, weed control, and trash and debris pickups for stormwater management facilities. This includes items such as the

Page 6: King County, WA Operation and Maintenance Manual

removal of debris/material that may be clogging the catch basin inlets ability to drain. These activities normally will be performed numerous times during the year. These items can be completed without any prior correspondence with King County.

Minor Work

This work consists of a variety of isolated or small-scale maintenance and work needed to

address operational problems. Most of this work can be completed by a small crew, with

minor tools, and small equipment. These items can be completed without any prior

correspondence with King County.

Major Work

This work consists of large-scale maintenance and major improvements needed to address failures within the stormwater management facilities. This work may require an engineering design with construction plans to be prepared for review and approval by the City. This work may also require more specialized maintenance equipment, surveying, construction permits or assistance through private contractors and consultants. These items require prior correspondence with King County and may be subject to permits.

Page 7: King County, WA Operation and Maintenance Manual

VIII. Maintenance Documentation

The Stormwater Management Facility Maintenance Activity Form provides a record of maintenance activities. Maintenance Forms for each facility type are provided in Appendix B. Maintenance shall be completed by the contractor and/or owner completing the required maintenance items. The form shall then be reviewed by the property owner or an authorized agent of the property owner and kept on site and submitted to the King County upon request.

Page 8: King County, WA Operation and Maintenance Manual

Appendix A

Stormwater Facility Maintenance Activity Log

Page 9: King County, WA Operation and Maintenance Manual

-3 STORMWATER MANAGEMENT FACILITY

INSPECTION & MAINTENANCE LOG (SAMPLE)4Property Address:

j Inspection Date:

Inspection Time:

Inspected By:

Approximate Date/Time of Last Rainfall:

Type of Stormwater Management Facility:

Location of Facility on Site (In relation to buildings or other permanent structures):

*

*

§§

Water levels and observations (Oil sheen, smell, turbidity, etc.):

tSediment accumulation & record of sediment removal:

§ Condition of vegetation (Height, survival rates, invasive species present, etc.) & record of replacement and management / (mowing, weeding, etc.):%

Condition of physical properties such as inlets, outlets, piping, fences, irrigation facilities, and side slopes. Record damaged items and replacement activities:

§§ Presence of insects or vectors. Record control activities:

ljjl Identify safety hazards present. Record resolution activities:fJJfM

Stormwater Management ManualAdopted July 1,1999; revised September 1, 2004

Page 3-9

Page 10: King County, WA Operation and Maintenance Manual

Appendix B

Site Plan

This is a simplified map of the site that shows the location of the stormwater system.

Page 11: King County, WA Operation and Maintenance Manual

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SEE DETAIL ON C3.01
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SEE DETAIL ON C3.01
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PROPERTY BOUNDARY (TYP.)
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WELL
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FINISHED FLOOR ELEVATIONS GRADE BREAK LINE FINISHED GRADE CONTOUR FLOW LINE
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EARTHWORK QUANTITIES WERE ESTIMATED USING A GRID VOLUME METHOD AND AUTODESK AUTOCAD CIVIL3D SOFTWARE. THE FOLLOWING VALUES ARE APPROXIMATE AND PROVIDED TO ILLUSTRATE GENERAL EARTHWORK EFFORTS BASED ON AVAILABLE SURVEY AND DESIGN DATA EXCLUDING ESTIMATES OF ANY VAULT, FOUNDATION, AND PAVEMENT QUANTITIES: FILL: 90,018 CY 90,018 CY CUT: 82,509 CY 82,509 CY NET: 7,509 CY(FILL) 7,509 CY(FILL) THESE VALUES ARE NOT FOR CONSTRUCTION BID PURPOSES. THE CONTRACTOR SHALL USE THEIR OWN MEANS AND METHODS TO ESTIMATE EARTHWORK QUANTITIES.
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PRE-SETTLING POND, PER DET. ON SHT. C3.02 DITCH PER DET. ON SHT. C3.100 INFILTRATION POND/SAND FILTER PER DET. ON SHT. C3.02 DISPERSION TRENCH PER DET. ON SHT. C3.100 6" PVC ROOF DRAIN GRAVEL POND ACCESS ROAD PER DET. ON SHT. C3.101 TRENCH DRAIN, 24" WIDE, POLY DRAIN PDX WITH TRAFFIC RATED GRATES OR APPROVED EQUAL INLET PIPE PROTECTION PER DET. ON SHT. C3.100 OUTLET PIPE PROTECTION PER DET. ON SHT. C3.100
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THE FOLLOWING SOURCE CONTROL BMPS ARE PROPOSED TO BE USED ON-SITE TO MEET SPECIAL REQUIREMENT #4 AS DESCRIBED IN SECTION 1.3.4 OF THE 2016 KCSWDM: A-1:REQUIRED BMPS FOR ALL PROPERTIES WITH COMMERCIAL ACTIVITIES A-2:OUTDOOR STORAGE OF FLUID MATERIALS IN STATIONARY TANKS A-4:OUTDOOR STORAGE OF SOIL, SAND, AND OTHER ERODIBLE MATERIALS A-13:VEHICLE WASHING AND STEAM CLEANING A-24:COMMERCIAL COMPOSTING A-41:WHEEL WASH AND TIRE BATH TRACK OUT CONTROL A-44:DUST CONTROL FOR COMMERCIAL OPPERATIONS
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C3.02
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C3.101
Page 12: King County, WA Operation and Maintenance Manual

NO.

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R=85'
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3
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GRAVEL LAYDOWN AND STOCKPILE AREA
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ROW
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ROW
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6
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10 YEAR WELLHEAD PROTECTION AREA
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COAL MINE AREA
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EROSION HAZARD AREA
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POTENTIAL STEEP SLOPE HAZARD AREA
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PROPERTY BOUNDARY (TYP.)
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60'
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60'
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8
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9
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VCL30 OIL/WATER SEPARATOR. SEE DETAIL ON SHEET C3.103
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SEE DETAIL ON SHT. C3.104
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VCL60 OIL/WATER SEPARATOR. SEE DETAIL ON SHEET C3.103
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FINISHED FLOOR ELEVATIONS GRADE BREAK LINE FINISHED GRADE CONTOUR FLOW LINE
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FF=
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100
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EARTHWORK QUANTITIES WERE ESTIMATED USING A GRID VOLUME METHOD AND AUTODESK AUTOCAD CIVIL3D SOFTWARE. THE FOLLOWING VALUES ARE APPROXIMATE AND PROVIDED TO ILLUSTRATE GENERAL EARTHWORK EFFORTS BASED ON AVAILABLE SURVEY AND DESIGN DATA EXCLUDING ESTIMATES OF ANY VAULT, FOUNDATION, AND PAVEMENT QUANTITIES: FILL: 90,018 CY 90,018 CY CUT: 82,509 CY 82,509 CY NET: 7,509 CY(FILL) 7,509 CY(FILL) THESE VALUES ARE NOT FOR CONSTRUCTION BID PURPOSES. THE CONTRACTOR SHALL USE THEIR OWN MEANS AND METHODS TO ESTIMATE EARTHWORK QUANTITIES.
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PRE-SETTLING POND, PER DET. ON SHT. C3.02 DITCH PER DET. ON SHT. C3.100 INFILTRATION POND/SAND FILTER PER DET. ON SHT. C3.02 DISPERSION TRENCH PER DET. ON SHT. C3.100 6" PVC ROOF DRAIN GRAVEL POND ACCESS ROAD PER DET. ON SHT. C3.101 TRENCH DRAIN, 24" WIDE, POLY DRAIN PDX WITH TRAFFIC RATED GRATES OR APPROVED EQUAL INLET PIPE PROTECTION PER DET. ON SHT. C3.100 OUTLET PIPE PROTECTION PER DET. ON SHT. C3.100
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C3.102
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1"=10'
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C3.00
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1"=10'
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C3.00
Page 13: King County, WA Operation and Maintenance Manual

Appendix C

Stormwater As-Built Drawings

(Will be provided when available)

Page 14: King County, WA Operation and Maintenance Manual

Appendix D

Maintenance Standards

Page 15: King County, WA Operation and Maintenance Manual

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Page 16: King County, WA Operation and Maintenance Manual

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Page 17: King County, WA Operation and Maintenance Manual

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Page 18: King County, WA Operation and Maintenance Manual

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Page 19: King County, WA Operation and Maintenance Manual

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Page 20: King County, WA Operation and Maintenance Manual

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Page 21: King County, WA Operation and Maintenance Manual

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Page 22: King County, WA Operation and Maintenance Manual

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Page 23: King County, WA Operation and Maintenance Manual

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Page 24: King County, WA Operation and Maintenance Manual

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Page 25: King County, WA Operation and Maintenance Manual

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Page 26: King County, WA Operation and Maintenance Manual

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Page 27: King County, WA Operation and Maintenance Manual

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