proposed improvements to the water system infrastructure in the anacostia area of washington, d.c....

Proposed Improvements to the Water System Infrastructure in the Anacostia Area ofWashington, D.C.

Proposed Improvements to the Water System Infrastructure in the Anacostia Area ofWashington, D.C.

November 20, 2002November 20, 2002

Prepared by

Prepared for

Our Customers, Council Members, Advisory Neighborhood Commissioners, and Concerned Stakeholders

2

Benefits from Proposed $40 Million ImprovementsBenefits from Proposed $40 Million Improvements

Maintains water quality

More reliable fire protection

Improved water pressure

Enhanced reliability for the community

Addresses water, fire, and maintenance challenges at the St. Elizabeths campus

Supports future development

St. Elizabeths Hospital overlooks the Potomac and Anacostia Rivers.

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Anacostia Service Area ChallengesAnacostia Service Area Challenges

Low pressure in southern Anacostia (south of W Street, SE)

Low pressure at St. Elizabeths campus

Under utilization of water storage at Ft. Stanton Reservoirs

Old water transmission system

Aging equipment and building at Anacostia Pumping Station, constructed in 1913

Fire protection

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Improvements in AnacostiaImprovements in Anacostia

North Anacostia

South Anacostia

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Low Water Pressure vs. High Water PressureLow Water Pressure vs. High Water Pressure

Ft. Stanton

Reservoirs

Low pressure acceptability

threshold: 35 psi

Optimal water pressure: 50–80 psi

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43 psi

25 psi

34 psi

42 psi

Ft. Stanton Existing

Reservoirs

Before Conditions vs. After ConditionsBefore Conditions vs. After Conditions

35 psi – low pressure acceptability threshold50–80 psi – optimum water pressure

63 psi

54 psi

63 psi

71 psi

Proposed43 psi

25 psi

34 psi

42 psi

Pomeroy Road

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Before Conditions vs. After Conditions, continued

Before Conditions vs. After Conditions, continued

After

Proposed Anacostia Tank

Before

Ft. Stanton Reservoirs

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Planned Improvements Planned Improvements

2005

2006

Pipes2004–2005

Eliminating Dead Ends(in progress)

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Proposed ImprovementsAnacostia Service AreasProposed ImprovementsAnacostia Service Areas

Plan of Action:Construct new Ft. Stanton Pumping Station

Benefits:This pumping station and the tank will boost pressure in the southern portion of Anacostia

Maximize use of the storage capacity at the Ft. Stanton Reservoirs Ft.

Stanton Park

Proposed pumping

station

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Proposed ImprovementsAnacostia Service Areas, continued


Plan of Action:Construct 2 million gallon (MG) elevated storage tank in southern portion of Anacostia

Benefits:Maintains optimal pressure

Provides continuous water supply during peak demand periods

Provides ample fire protection storage

Provides emergency reserve in the event of mechanical failure to the pumping station

Proposed tank

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Plan of Action:Replace 6,000 feet of 20" pipe along Minnesota Avenue, from Pennsylvania Avenue to W Street

Benefit:Replace low pressure-rated pipe with higher rated pipe to meet higher pressure requirements

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Plan of Action:Replace 4,800 feet of 20" pipe along Martin Luther King Jr. Avenue, from Milwaukee Place to Upsal Street, SE

Benefit:Replaces low pressure-rated pipe with higher rated pipe to meet higher pressure requirements

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Plan of Action:New 5,300 feet of 24" pipe along V or W Street, from Ft. Stanton Reservoirs to Martin Luther King Jr. Avenue

Benefit:Will provide a secondary feed to the Ft. Stanton Reservoirs, and a looped transmission network for better circulation

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Plan of Action:Replace existing Anacostia Pumping Station with new station on existing site

Benefits:Replaces 1913 station, with new state-of-the-art facility

Existing station will remain operational during construction with no loss of service

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Completed Improvements Anacostia Service AreasCompleted Improvements Anacostia Service Areas

Plan of Action:Rehabilitate two Anacostia elevated storage tanks: Good Hope (completed) and Boulevard Tanks (in progress)

Benefits:Complete repainting improves overall appearance

Improves water quality

Provides improved safety features for WASA operators

Before rehabilitationBefore rehabilitation After

Proposed Proposed Improvements Improvements ……

At a glanceAt a glance

Replace 6,000' of 20" pipe along Minnesota

Ave., from Pennsylvania Ave. to W St.

PS

Rehabilitate Good Hope Road Tank (completed)

Rehabilitate Boulevard Tank at Massachusetts and Alabama Avenue(not shown, currently underway)Replace existing

Anacostia Pumping Station

New 5,300' of 24" pipe along W St., from Ft.

Stanton Reservoirs to MLK Ave.

Anacostia(North)

Anacostia (South)

Anacostia North/SouthBoundary (at W Street)

Construct new Ft. Stanton Pumping Station

Construct new 2 MG elevated storage tank at St. Elizabeths

Replace 4,800' of 20" pipe along MLK Ave.

from Milwaukee Pl. to Upsal St.

N Pennsylvania Ave.

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Increased water pressure

To provide additional supply during peak usage periods

For fire fighting purposes

Emergency reserve in the event of mechanical failures in the system

Additional capacity to support economic development

Why Is Additional Water Storage Needed?Why Is Additional Water Storage Needed?

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Relies on gravity to maintain pressures

Minimal mechanical working parts involved and is less vulnerable to mechanical breakdowns

Less vulnerable to power failure

Emergency reserve for system outages

Does not make noise or emit fumes

More reliable fire protection

Less costly to operate and maintain

Lifespan is 50+ years

Why an Elevated Storage Tank?Why an Elevated Storage Tank?

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Yes, a pumping system. There are major disadvantages

It’s mechanical and less reliable– Increased potential for failure

– Requires complex multiple pump operations – more wear and tear

– Requires a more comprehensive back-up source of power (generator)

Potential for “water-hammer” that can cause pipe breaks

Additional noise

Are There Other Options?Are There Other Options?

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Yes, “Do Nothing” optionContinued low pressures in the service area

Added risks from a fire protection perspective

Limits future development

Are There Other Options?, continuedAre There Other Options?, continued

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High ground elevation

Centrally located in relation to problem areas

Close proximity to existing transmission pipes

Location will support future development in Anacostia

Why at St. Elizabeths?Why at St. Elizabeths?

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Other Anacostia ProjectsOther Anacostia Projects

Plan of Action:Continue ongoing programs

– Eliminate cross connections– Eliminate dead end water pipes– Replace old valves– Rehabilitate water pipes

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Project Costs for Improvements in Anacostia

Project Costs for Improvements in Anacostia

$ (in millions)

Rehabilitate Good Hope and Boulevard Lane Tanks 0.9

Replace Anacostia Pumping Station 14.6

New Ft. Stanton Pumping Station 4.7

Replacement of pipes 9.1

24" reinforcing pipes 4.1

2 MG Anacostia elevated storage tank 5.9

Total 39.3

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Construction ScheduleConstruction Schedule

Project Date CompletedRehabilitate Good Hope (completed) and Boulevard Tanks (in progress) Dec 2002

Replace 20" pipe along Martin Luther King Jr. Avenue from Milwaukee Place to Upsal Street, SE Dec 2004

Replace 20" pipe along Minnesota Avenue from Pennsylvania Avenue to W Street Aug 2005

New 24" pipe along W Street from Ft. Stanton Reservoirs to Martin Luther King Jr. Avenue Nov 2005

Construct new Ft. Stanton Pumping Station Dec 2005

Construct 2 MG Anacostia elevated storage tank at St. Elizabeths July 2006

Replace Anacostia Pumping Station (on Minnesota Avenue) with new pumping station on existing siteDec 2006

Invite us to individual ANC and

community meetings

Invite us to individual ANC and

community meetings

Question and Answer SessionQuestion and Answer Session

proposed improvements to the water system infrastructure in the anacostia area of washington, d.c....

Documents

anacostia tank

psi slide

low water pressure

anacostia rivers

tank slide

anacostia pumping station14

psi optimal water pressure

high water pressure