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Permit Compliance Support

UNIVERSITY BASIN GSI CSO CONTROL PROJECT

King County Wastewater Treatment Division
Seattle, WA
Interagency Permitting Lead

King County Wastewater Treatment Division (WTD) proposes to install Green Stormwater Infrastructure (GSI) facilities to the maximum extent practicable to reduce the gray infrastructure demands needed for full Combined Sewer Overflow (CSO) control at the University Regulator Station Overflow. RKI is serving as the Interagency Permitting Lead, responsible for planning and obtaining SDOT Street Improvement Permits and other required construction permits.

SPU VINE BASIN CSO CONTROL PROJECT

Seattle Public Utilities
Seattle, WA
GSI Lead

As part of its Plan to Protect Seattle’s Waterways, SPU committed to constructing green and/or gray infrastructure that will bring the Vine basin into compliance with Combined Sewer Overflow (CSO) regulatory requirements by the end of 2025. Serving as GSI Lead, RKI helped SPU develop and evaluate GSI options and select the preferred option to be advanced to final design and construction.

SHARP AVENUE POROUS PAVEMENT EFFECTIVENESS STUDY

City of Spokane Integrated Capital Management
Spokane, WA
Independent Design Review

This project installed and will monitor permeable pavement for durability, water quality (influent and effluent), and infiltration rates. RKI assisted the City of Spokane with research on successful monitoring practices and lessons learned by other jurisdictions and provided design review and recommendations for final design, construction, monitoring, operation and maintenance.

AVIATION MISCELLANEOUS STORMWATER PERMIT SUPPORT SERVICES

Port of Seattle
SeaTac, WA
Principal Engineer

RKI is providing permit support, development review, engineering standards updates, and stormwater management planning for the Seattle-Tacoma International Airport (STIA) under the Port of Seattle’s Indefinite Delivery Indefinite Quantity (IDIQ) Environmental Review and Permitting Services contract. Recent tasks include development of the STIA LID Guideline for compliance with the Airport’s NPDES Individual Permit and Federal Aviation Administration requirements for commercial airport operations, planning for regional infiltration facilities, and assistance with Port policies and strategic goals.

2019 LONG-TERM CONTROL PLAN UPDATE

King County Wastewater Treatment Division
Seattle, WA
GSI Lead/Subject Matter Expert

King County Wastewater Treatment Division is updating their Combined Sewer Overflow (CSO) Long-term Control Plan (LTCP). As GSI Lead, RKI was responsible for basin planning to integrate GSI techniques, such as roadway bioretention, permeable pavement, and green alleys, with conventional gray storage facilities to develop alternatives for reducing stormwater contributions to the combined system and reducing the required size of gray storage facilities to meet the regulatory control standard.

2017 ENGINEERING AND NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM TECHNICAL SUPPORT ON-CALL

City of Everett Public Works
Everett, WA
Project Manager

RKI provided on-call services to assist with implementation of the City’s 2016 update of their engineering standards, including new requirements for Low Impact Development (LID), and provided technical support for compliance with the western Washington Phase II National Pollutant Discharge Elimination System (NPDES) permit.

2017 STORM AND SURFACE WATER ENGINEERING STANDARDS UPDATE

City of Bellevue Utilities
Bellevue, WA
Project Manager

RKI updated the City’s Storm and Surface Water Engineering Standards to comply with National Pollutant Discharge Elimination System (NPDES) permit requirements, including new requirements for Low Impact Development (LID), and provided training for municipal staff and design professionals on how to use the new standards in the preparation and permit review of stormwater site plans.

SPU BALLARD NATURAL DRAINAGE SYSTEMS

Seattle Public Utilities
Seattle, WA
Project Manager & Operations Manual Author

SPU estimates a Combined Sewer Overflow (CSO) control volume of approximately 6 million gallons is needed to meet NDPES CSO control regulations for two uncontrolled basins in the Ballard neighborhood. While at a previous firm, Robin served as Project Manager and Lead Engineer through Options Analysis and final construction design of 17 blocks of residential roadway GSI for CSO control. Following construction in 2016, RKI was retained to develop the project-specific standard operating procedures and operation and maintenance manual. This project won the inaugural 2017 Pacific Northwest Clean Water Association Innovative Stormwater Project award.

WEST DUWAMISH COMBINED SEWER OVERFLOW PROJECT

King County Wastewater Treatment Division
Seattle, WA
Design Team Manager

The West Duwamish Combined Sewer Overflow (CSO) Control Project will control CSOs for King County’s West Michigan and Terminal-115 basins to the Washington State regulatory requirement of one-event per year on a rolling 20-year average. As Design Team Manager, RKI led the GSI alternatives analysis to identify and compare various combinations of grey and green technologies to achieve the control strategy and help protect the Duwamish River and Puget Sound.

2016 CODE AND STORMWATER DESIGN MANUAL UPDATE

Kitsap County Department of Community Development
Port Orchard, WA
Project Manager

RKI led the 2016 update of the County’s codes and engineering standards to meet requirements of the National Pollutant Discharge Elimination System (NPDES) Western Washington Phase II Municipal Stormwater Permit, including review and update of the County’s roadway, stormwater, subdivision, and landscape codes; update of the County’s Stormwater Design Manual; and development of outreach materials to educate designers on how to comply with the updated codes and standards.

CIP INSPECTOR STAFF TRAINING AND NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM SUPPORT ON-CALL

Kitsap County Public Works
Port Orchard, WA
Project Manager

Following on our work with Kitsap County Department of Community Development to update the County’s codes, Road Standards, and Stormwater Design Manual to meet regulatory requirements of the NPDES permit, RKI provided training for Capital Improvement Project (CIP) Inspectors on how to apply the updated codes and standards in managing construction of roadway CIPs.

2016 CITY OF RICHLAND STORMWATER PLAN UPDATE

City of Richland Public Works
Richland, WA
Project Manager

RKI led the 2016 update of the City’s Stormwater Management Plan to address population growth, land use development, and requirements of the National Pollutant Discharge Elimination System (NPDES) Phase II Eastern Washington Permit. The plan characterizes existing drainage and water quality issues, identifies and prioritizes projects and programs that provide residents with the greatest value and protection, provides a financial plan and rate forecast, and helps the City prepare for possible future MS4 program audits.

2016 LOW IMPACT DEVELOPMENT CODE AND NATIONAL POLLUTANT DISCHARGE AND ELIMINATION SYSTEM ON-CALL SUPPORT

City of Everett Public Works
Everett, WA
Project Manager

RKI provided on-call services to the City of Everett Public Works to assist with the City's 2016 Low Impact Development (LID) code update; provide technical assistance with the Western Washington Phase II National Pollutant Discharge Elimination System (NPDES) permit compliance strategy; and conduct training for staff from Public Works, Transportation, Parks, and Permit Services on how to work with the new code and permit requirements.

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