Innovative Water Processing Solutions By Water Quality Management - - PowerPoint PPT Presentation

Innovative Water Processing Solutions By Water Quality Management Professionals

• Overview of WaterTectonics
• Modern Challenges of Construction Stormwater

Treatment in Washington State

• WT Technologies & Services for Contractors
• Construction Stormwater Case Studies
• Q&A

• WaterTectonics has a 14-year local history

working with stormwater treatment at construction sites in the Puget Sound region

• We design, manufacture, install, and operate a

range of simple-to-advanced stormwater treatment systems

• Our in-house consultation and lab services can

design for and diagnose almost any application

• Our local field team provides ongoing field service

support for projects year-round

CITY # PROJECTS Seattle 42 Redmond 17 Bellevue, Issaquah, Tacoma 7 each Renton 5 Kirkland, Woodinville 3 each Bremerton, Everett, Kent 2 each Anacortes, Bellingham, Black Diamond, Bothell, Burien, Des Moines, Enumclaw, Gig Harbor, Kenmore, Lynnwood, Mercer Island, Monroe, Olympia, Sammamish, Skykomish, Snoqualmie 1 each Total 115

The WT team has a deep understanding of the challenges, regulations, and options available on Puget Sound region projects.

ACTIVE COMPLETED

• Microsoft West Campus
• Amazon World Headquarters
• Seahawks Training Center
• Gates Foundation Headquarters
• UW Medical Center Expansion
• Swedish Hospital
• Aleutian Spray Fisheries
• SR 304 Tunnel Expansion WSF
• WSDOT I-5 Port of Tacoma HOV
• Port of Seattle Rental Car Facility
• The Spring District
• South Lake Union Block

14/19/43/44/45/52 Development

• Spokane Convention Center
• Overlake Village
• University Village QFC
• Aberdeen Walmart
• University of Washington Terry Hall
• 10505 Main Street

• What is the goal?
• Are permits filed?
• Are stormwater plans in place?
• Are BMPs in place?
• Are BMPs being maintained?
• Can you eliminate problem outfalls?
• Can you infiltrate or reduce your discharge?
• Are you monitoring your outfalls?
• Are you sampling correctly?
• Are you doing all of the above and still have

problems?

Local (City & County Authorities) Sets Project-Specific Standards Approves Stormwater Pollution Plans State (Washington Dept. of Ecology) Sets State-Specific Standards Enforcement & Inspections Federal (EPA) Sets Minimum Water Quality Standards

• Permit required for sites > 1 acre
• Permitted sites must have SWPPP

and meet minimum requirements for Turbidity and pH

• Typical 60-day permit lead time after

filing Notice of Intent Application

• Local review process may require

additional time and local regulators may require additional treatment beyond state requirements

Example of Differences in Local Requirements Bellevue Turbidity Monitoring Plan Issaquah Wet Weather Operating Plan Redmond Wet Weather Plan Seattle Drainage Side Sewer Permit Dry Season Grading Extension Tacoma Special Authorization to Discharge (SAD) King County Wet Season Plan Snohomish County Enhanced TESC Review

• Schedule
• Phasing
• Soil Type
• Topography
• Rainfall Sizing
• Historical Use
• Groundwater Intrusion
• Receiving Water
• Discharge Options
• Etc…

SELL/RENT EQUIPMENT

WaveIonics RoadSide Acist pHATBox Other

TREATABILITY STUDIES

In-house testing & analysis Lab & field-scale programs QAPP plans

TURNKEY SERVICE

Permitting/Monitoring Operator Training Install/Mob/Demob Services O&M Contracts

• Project-Specific Treatment Design
• Run-off Calculations
• Equipment Layout
• Project Cost Analysis
• Permitting
• NPDES Permits & SWPPPs
• Wet Weather & Monitoring Plans
• Sanitary Discharge Applications
• Monitoring
• DMR Reporting & Compliance
• Site Inspections & Sampling

PHATBOX

Automated pH Adjustment Flowrate: 50-350gpm Contaminants: pH

WAVEIONICS

Electrocoagulation Flowrate: 50-1,000gpm Contaminants: Turbidity, Heavy Metals, Oils, Organics

ROADSIDE ACIST

Chitosan Treatment System Flowrate: 300-1,000gpm Contaminants: Turbidity

Chitosan Enhanced Sand Filtration (CESF) Electrocoagulation (EC) Approval Level GULD GULD Consumable Liquid Chitosan EC Cells Labor On-Site Labor When Operating Automated Operator with Alerts Contaminants Turbidity Only Turbidity, Metals, Emulsified Oils Active pH Range 7 to 8 5 to 12 Active NTU Range 0 to 600 0 to 4,000+ Rental Cost $200 to 260 / day $250 to 310 / day

Treatment Scope: (2) 1000gpm CESF Systems Project Scope:

• Located in

Tallahassee, Florida

• $57M contract for

2.9mi of 4 new lanes

• Intersection

improvements

• Environmental

mitigation

Treatment Scope: (2) 400gpm WaveIonics electrocoagulation systems Project Scope:

• Located in Gilboa, New York
• Drinking water reservoir dam

replacement

• Stormwater, concrete batch plant, truck

washout, dam wash-down, dewatering

Treatment Scope: (1) 300gpm WaveIonics electrocoagulation system Project Scope:

• Located in Seattle, Washington
• Redevelopment for mixed-use residential
• Stormwater, dewatering w/ direct discharge to Lake Union

Treatment Scope: (1) 300-600gpm WaveIonics electrocoagulation system Project Scope:

• Located in Seattle, Washington
• Early action site for Lower Duwamish

Superfund Cleanup

• Dredge effluent return water

Treatment Scope: (1) 300gpm WaveIonics electrocoagulation system Project Scope:

• Located in Whitefish, Montana
• 750LF sheet-pile cofferdam isolation and

dredging through 6-48” of sediment and shoreline removal

Units Influent Effluent cPAH’s/PAH’s µg/L 3,187 < 10 Mercury µg/L 8.8 < 1 Arsenic µg/L 100 < 5 Cadmium µg/L 4.1 < 1 Chromium µg/L 200 < 1 Lead µg/L 3,300 < 1

• Learn all you can about your site and the options

available to you

• Think about stormwater treatment in the context
• f the bigger picture: capital costs, operational

costs, schedule impacts, work activity impacts, violation risks, etc.

• Have a plan, report on it, adapt as needed
• Know that there are a wide variety of proven

solutions and technologies available to meet your needs on more challenging sites

WaterTectonics 6300 Merrill Creek Parkway Suite C-100 Everett, WA 98203 www.watertectonics.com