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Stormwater Trends: Seattle and Beyond

AAPA Energy and Environment SeminarStephanie Jones Stebbins,

Director, Seaport Environmental and Planning Port of Seattle

Port Survey Participants

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Port of Everett

Port of Seattle

Port of Los Angeles

Port Authority of NY/NJ

Port of Baltimore

Jaxport

Port Canaveral

Port EvergladesPort of Houston

Port of Corpus Christi

Port of Tacoma

West Coast Ports

Gulf Coast Ports

East Coast PortsPort of Portland

Coverage by municipal permit

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80%Yes

20%No

West Coast Ports

100%Yes

Gulf Coast Ports

20%Yes

80%No

East Coast Ports

Industrial Permit Coverage

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100%Yes

West Coast Ports

100%Yes

Gulf Coast Ports

80%Yes

20%No

East Coast Ports

Required to conduct monitoring

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100%Yes

West Coast Ports

100%Yes

Gulf Coast Ports

80%Yes

20%No

East Coast Ports

Ports and/or tenants required to meet enforceable effluent limits.

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60%Yes

40%No

West Coast Ports

100%Yes

Gulf Coast Ports

60%Yes

40%No

East Coast Ports

Ports that receive copies/updates to tenants’ SWPPPs.

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40%Yes

60%No

West Coast Ports

100%Yes

Gulf Coast Ports

80%Yes

20%No

East Coast Ports

Ports that have tariffs and lease contract language that require tenants' compliance with port's SWPPP.

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40%Yes

60%No

West Coast Ports

100%Yes

Gulf Coast Ports

80%Yes

20%No

East Coast Ports

Is Port or tenant responsible for selection, design, installation and/or maintenance of treatment devices or other BMPs?

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Port80%

Tenant0%

Both20%

East Coast PortsPort0%

Tenant40%

Both60%

West Coast Ports

Both100%

Gulf Coast Ports

Port has participated in verification and testing of new treatment technology.

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60%Yes

40%No

West Coast Ports

100%No

Gulf Coast Ports

20%Yes

80%No

East Coast Ports

Port is subject to Total Maximum Daily Loads, TMDLs.

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40%Yes

60%No

West Coast Ports

50%Yes

50%No

Gulf Coast Ports

20%Yes

80%No

East Coast Ports

Permit CoveragePhase I Municipal Stormwater PermitISGP Permits

– 18 Tenant Permits

– 2 Port Permits

– Covering 700 AcresOther SEA/RE NPESP Permits

– Individual, Boatyard, Construction

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All NPDES Permits100% of Permit Coverage at RE/SEA

34%Municipal

65% ISGP

1% Other

ISGP – Tenants

T-46: Port installing Up-flo on 3 of 4 outfalls / ~80 acres

T-18: 20 outfalls / ~200 acres: treatment at source locations

T-5: 14 outfalls~160 acres

T-115: Chitosan treatment system on 2 of 5 outfalls / ~70 acres

Also Treatment needed at:• T104, T106, T108, T25 & T30

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ISGP Thresholds

WA State ISGPs contain the most stringent requirements in the country for Zinc & Copper.

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117

260

120

Washington California Oregon

Zinc micrograms per liter

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33.2

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Washington California Oregon

Copper micrograms per liter

Corrective Action Threshold Limits

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MunicipalProgram

Stormwater infrastructure

repair & upgrades

ISGPcosts

Stormwater Costs(5-year estimate)

$23M

$10M

$50Mto

100M

Total Stormwater requirements Next 5 years

$85 to $135 Million in SW Requirements

Plus$23 Million in SWM fees

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$23 million could be used repair and

replaced 16 miles of Port owned

stormwater pipes.

$0.40 $0.42 $0.51 $0.51 $0.69 $0.69 $0.73

$0.83 $1.05

$1.30 $1.40

$2.04 $2.26 $2.31

$2.71

$3.05

$3.36

$3.69

$4.06

$4.47

$4.91

$5.40

$-

$1.00

$2.00

$3.00

$4.00

$5.00

$6.00

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

In M

illio

ns

SWM Fees to City: 1997 - 2018

City Stormwater Fees

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Tenants

1997-2013 SWM Fees:

$24 MillionNext Five Years for SWM Fees:

$ 23 Million

Port of Seattle

Port has the same obligations and authority as the City.

Obligations:

• Phase 1 municipal permits

Authority

• RCW 53.08.043 expressly grants port districts "all of the powers relating to systems of sewerage” that are granted to cities.

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Port SWM Fees and Expenditures

• Commission approved rates and budget• Utility spending includes:

– 80% SIRUP Stormwater Infrastructure Repair & Upgrades

– 20% Phase I Permit Compliance & Administration

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Total StormwaterInfrastructure

Repair & upgrades$23M

$4.6M

$18.4M

`

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Thanks!