clean watersheds for a clean bay (cw4cb) task 5 individual ...basmaa.org/portals/0/documents/project...

Clean Watersheds for a Clean Bay (CW4CB)

Task 5 Individual Retrofit Pilot Project Report

Ettie Street Pump Station Media Filter Project

Alameda County, Oakland, California

Prepared for

Alameda Countywide Clean Water Program

Prepared by

1111 Broadway, 6th Floor

Oakland, California 94607

August 2016

http://www.cleanwaterprogram.org/index.php

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TABLE OF CONTENTS

1. INTRODUCTION AND BACKGROUND ......................................................... 1

2. PROJECT LOCATION ........................................................................................ 1

3. TREATMENT CONTROL MEASURE .............................................................. 1

4. CONSTRUCTION PROCESS ............................................................................. 2

5. COST SUMMARY .............................................................................................. 2

6. MONITORING DATA ........................................................................................ 2

7. PROJECT OUTCOMES AND LESSONS LEARNED ....................................... 2

8. REFERENCES ..................................................................................................... 3

ii

LIST OF TABLES

Table 1. Cost Summary .................................................................................................... 2

LIST OF FIGURES

Figure 1: Ettie Street Pump Station Project Map

LIST OF APPENDICES

Appendix A: Ettie Street Pump Station Project – Conceptual Design

Appendix B: Ettie Street Pump Station Project – 100% Draft Engineer’s Estimate

Appendix C: Ettie Street Pump Station Project – 100% Plans

Ettie Street Pump Station Project Report

1

1. INTRODUCTION AND BACKGROUND

The Bay Area Stormwater Management Agencies Association (BASMAA) Clean Watersheds

for a Clean Bay (CW4CB) project evaluated a variety of potential control options to reduce mass

loadings of polychlorinated biphenyls (PCBs) and mercury in urban stormwater runoff to San

Francisco Bay.

The primary objective of CW4CB Task 5 was to select and implement representative urban

stormwater treatment retrofit projects. This objective coincided with Municipal Regional

Stormwater NPDES Permit (MRP, Order R2-2009-0074) Provision C.12.e, which required the

MRP Permittees to identify and conduct on-site pilot treatment projects in ten locations during

the MRP term and to document the knowledge and experience gained to provide a basis for

determining the scope of implementation of treatment retrofits in subsequent permit terms.

This report presents results of the Ettie Street Pump Station (ESPS) Media Filter Project in

Oakland, California and includes descriptions of the project location, treatment measure,

planning and design process, construction process and schedule, cost summary, monitoring plan,

and challenges and lessons learned.

2. PROJECT LOCATION

The Ettie Street Pump Station (ESPS) Media Filter Project is located in West Oakland,

California at 3465 Ettie Street, adjacent to MacArthur Freeway to the north and Nimitz Freeway

to the west. The ESPS is an Alameda County Flood Control and Water Conservation District

(ACFCWCD) facility that collects and pumps stormwater runoff to San Francisco Bay. The

ESPS watershed comprises approximately 1180 acres in West Oakland and includes

approximately 42% residential, 38% industrial, and 20% commercial land use areas. The

proposed stormwater treatment measure is a media filter system with two parallel filter beds

containing different media. The project location and watershed are shown on Figure 1.

The stormwater program representative for the project is Arleen Feng with the Alameda

Countywide Clean Water Program (ACCWP).

3. TREATMENT CONTROL MEASURE

The primary stormwater treatment measure consists of installing two parallel media filter beds to

treat PCBs and mercury that enter the ESPS from the watershed. The design media filter flow

capacity for both filters is limited to approximately 30 gpm. The media filter system will be

located at grade outside the ESPS building and will include a pump and pretreatment storage

tank. The pump will draw water up from one of the two forebays into the pretreatment storage

tank, which is designed to settle out the fine and coarse particulates. Pumping will be triggered

during storm events by elevated turbidity readings from a real-time turbidity sensor in the

forebay. The flows will then be evenly split between each media bed using flow control valves.

One filter bed will contain rhyolite sand and the second bed will contain a mix of media types,


2

including rhyolite sand, zeolite, and granulated active carbon (GAC). The discharges from the

media beds will be combined before returning to the forebay.

4. CONSTRUCTION PROCESS

ACFCWCD and BASMAA entered into a contract in October 2012. WRECO completed the

100% design in December 2013. Appendix A contains the WECO Conceptual Design Memo,

Appendix B contains the latest cost estimate dated December 31, 2013, and Appendix C contains

the 100% Design Plans. The project has not yet received approval from the Oakland City

Council and is currently on hold. At this time, a bid has not been put out and there is no

estimated start date for construction.

5. COST SUMMARY

Table 1. Cost Summary

Project Phase Description

Individual

Cost

($)

Total

Cost

($) Notes

Design Total 31,610 31,610 WRECO Invoice Summary.

Construction Management Unknown

72,200

Project has not gone out to bid.

Estimate based on WRECO’s Draft

Engineer’s Estimate dated December

31, 2013. Other Unknown

O&M Annual Unknown Unknown

Total Cost Total 103,810 The total estimated cost does not

include the annual O&M costs.

The total catchment area is 1,180 acres. The total estimated design and construction cost of the

project is $103,810. The estimated total cost per unit area is $88 per acre.

6. MONITORING DATA

As the project has not yet been constructed, no monitoring has been conducted to date.

7. PROJECT OUTCOMES AND LESSONS LEARNED

The one major lesson learned at this time is that the permitting and approval process can

significantly delay a project.


3

8. REFERENCES

BASMAA, 2012. Quality Assurance Project Plan: Clean Watersheds for a Clean Bay –

Implementing the San Francisco Bay’s PCBs and Mercury TMDLs with a Focus on Urban

Runoff, EPA San Francisco Bay Water Quality Improvement Fund Grant No. CFDA 66.202.

Prepared by Applied Marine Sciences, Inc. FINAL. 12 September 12.

BASMAA, 2013a. BASMAA Sampling and Analysis Plan, Clean Watersheds for a Clean Bay –


Runoff, Task 5 Phase I, EPA San Francisco Bay Water Quality Improvement Fund Grant #

CFDA66.202. Prepared by Applied Marine Sciences. 5 March.

BASMAA 2013b. Clean Watersheds for a Clean Bay (CW4CB) Retrofit Pilot Study Plan.

Prepared by Brian Currier at the California State University Sacramento Office of Water

Programs. 22 October.

BASMAA, 2013c. BASMAA Sampling and Analysis Plan, Clean Watersheds for a Clean Bay –


Runoff, Task 5 Phase II, EPA San Francisco Bay Water Quality Improvement Fund Grant #

CFDA66.202. Prepared by Applied Marine Sciences. 24 October.

BASMAA, 2013d. Integrated Monitoring Report Part B: PCBs and Mercury Loads Avoided and

Reduced via Stormwater Control Measures. Prepared by Geosyntec Consultants and EOA

Inc. 12 December.

BASMAA, in preparation. Clean Watersheds for a Clean Bay (CW4CB) Final Project Report.

WRECO, 2013. Ettie Street Pump Station Retrofit Project – Conceptual Design, 30% Design

Memorandum. Prepared by WRECO for the Alameda Countywide Clean Water Program. 2

July.

FIGURES

P:\GIS\Ala m eda Countywide Clea n Wa ter Progra m (ACCWP)\Ta sk 5\Project\ESPS.m xd

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³ 0 1,000 2,000Feet

Figure1WW2053 July 2016

CW4CB Task 5Ettie Street Pump Station Media Filter Project Map

Legend") Ettie St. Pum p Sta tion (ESPS)

ESPS Wa tershed

Roa dsStorm Drains (Diameter)

≤36"

>36"

Source: Esri, Digita lGlobe, GeoEye, Ea rthsta r Geogra phics, CN ES/Airbus DS, U SDA, U SGS, AEX,Getm a pping, Aerogrid, IGN , IGP, swisstopo, a nd the GIS U ser Com m unity

Ala m eda County, CA

Project L oca tion

APPENDIX A: Ettie Street Pump Station Project –

Conceptual Design

1243 Alpine Road, Suite 108 Walnut Creek, CA 94596

Phone: 925.941.0017 Fax: 925.941.0018 www.wreco.com

| Civil Engineering | Water Resources | Environmental Compliance | Geotechnical Engineering | 1

Memorandum Date: July 2, 2013

To: Arleen Feng – ACPWA

From: Analette Ochoa / Jennifer Abrams – WRECO

Subject: Ettie Street Pump Station Retrofit Project – Conceptual Design

Introduction

The Ettie Street pump station in the City of Oakland is identified as one of the sites selected by the Bay Area Stormwater Management Agencies Association (BASMAA) as part of the Clean Watersheds for a Clean Bay Implementation Plan. The objective of this Plan is to select and implement representative urban stormwater treatment retrofit projects that can be used to evaluate potential polychlorinated biphenyls (PCBs) load reductions in urban stormwater runoff to the Bay. The purpose of this memorandum is to present a conceptual design for the treatment Best Management Practice (BMP) at the Ettie Street pump station site. The proposed stormwater treatment measure for the project is a media filter system with two separate filter beds containing different media.

Project Location and Existing Site Condition

The Ettie Street Pump Station Retrofit Project is located in West Oakland at the northernmost end of Ettie Street, adjacent to MacArthur Freeway to the north and Nimitz Freeway to the west (Figure 1). The Ettie Street Pump Station is an Alameda County Flood Control and Water Conservation District facility that collects and pumps stormwater runoff to the San Francisco Bay. The Ettie Street pump station receives stormwater runoff from approximately 2,000 acres of West Oakland. This watershed is composed of approximately 42% residential, 38% industrial, and 20% commercial land uses. PCB congeners have been measured in the pump station effluent during dry weather, first flush, and wet weather events.

The existing site layout is shown in Figure 2. Aboveground, the existing pump station consists of a building containing the pump and engine room and the auxiliaries and office. Outside of the building, there is a paved driveway and parking area, with a 6-foot by 25-foot access grate to the forebay below. There are two large vents adjacent to the west side of the access grate. At the northern corner of the property, a 600 gallon constant head tank has been constructed. The tank receives water pumped out of the pump station’s sump. Adjacent to this tank there is a planting area to the west, a gate and a PG&E gas utility access hole to the north, fence to the east, and the access grate and vents to the south. A controller is also located near the tank.




Figure 1. Project Location Map

Source: Google

Project Site

No Scale

N San Francisco Bay

Oakland




Figure 2. Existing Site Layout

Source: Google

Design Concept

The Project would install two media filter beds to treat PCBs and mercury (Hg) that enter the Ettie Street pump station from the Ettie Street drainage catchment. A schematic of the Project layout is included in Figure 3. The two media filters would operate in parallel, allowing samples to be taken to compare the performance of the two types of filter media. The media filters would be located at grade outside the pump station building. Each filter would have a 4-foot by 12-foot footprint. The filters would have covers to prevent rain from entering the system. Water from the existing storage tank would be pumped up to a sufficient elevation, then split and conveyed to each tank containing the filter media. Water would be directed over a weir onto the

No Scale

N




surface of the media filter bed where it would infiltrate down through the 2.5-foot thick filter media to an underdrain. One filter bed would contain rhyolite, and the second bed would contain a mix of media types, including 50% rhyolite, 30% zeolite, and 20% granulated active carbon. The discharge from the filter media would be collected in a 2-inch slotted pipe underdrain running the length of each tank. The pipe would be surrounded by a rock blanket and the bottom of the filter bed would be sloped for drainage. Each filter bed would discharge to a non-perforated PVC pipe, which would combine before reentering the wet well. Water quality sampling ports would be located just downstream of the storage tank and at the downstream ends of each filter bed. Flow control valves and backflow preventer valves would be located at the upstream and downstream ends of the filter beds to regulate the flow.

Figure 3. Proposed System Schematic

No Scale




Cost Information Cost data was obtained from manufacturers and RSMeans. The detailed estimate is included in the Attachments. The total cost of construction was estimated to be $53,800.

References

California Regional Water Quality Control Board San Francisco Bay Region. (April 2006). Fact Sheet PCBs in the Ettie Street Pump Station Watershed. <http://www2.oaklandnet.com/oakca1/groups/pwa/documents/report/oak026315.pdf> [Last accessed: June 28, 2013].

Google. Google Earth. Version 7.0.3.8542. [Last accessed: June 28, 2013]. RSMeans. (2008.) Heavy Construction Cost Data 22nd Annual Edition.




Attachments

Item No.

Item Description Unit of MeasureTotal

Estimated Quantity

Unit Price Item Total

1 Fiberglass Tank (12 ft x 4 ft x 5 ft deep) with Lid EA 2 $16,280.00 $32,560

2 5 GPM Pump (1-5 GPM range) EA 1 $1,100.00 $1,100

3 Flow Control Valves (2 GPM) EA 4 $300.00 $1,200

4 Flow Meter (1.2 to 12 GPM) EA 3 $800.00 $2,400

5 Check Valves EA 4 $32.00 $130

6 Weir EA 2 $500.00 $1,000

7 Media (Blended and Placed) CY 9 $265.00 $2,390

8 Filter Fabric SY 14 $2.00 $30

9 Underdrain Pea Gravel CY 1 $28.00 $30

10 Underdrain (2" Sch 40 Perforated PVC Pipe) LF 24 $1.26 $30

11 Inlet/Outlet Piping (4" Sch 40 PVC Pipe) LF 75 $4.00 $300

12 Inlet/Outlet Piping 90 degree Elbow (4" Sch 40 PVC Pipe) EA 4 $64.00 $260

13 Inlet/Outlet Piping Tee (4" Sch 40 PVC Pipe) EA 2 $125.00 $250

$41,680

1 Laborer HR 80 $70.00 $5,600

2 Operator HR 40 $100.00 $4,000

$9,600

$51,2805% CONTINGENCY $2,564TOTAL $53,800

SUBTOTAL

Construction: Materials

Materials Subtotal

Construction: Labor

Labor Subtotal

Etty Road Conceptual Treatment Cost EstimateOakland, CA

7/2/2013

APPENDIX B: Ettie Street Pump Station Project –100% Draft Engineer’s Estimate

Item No.

Item Description Unit of MeasureTotal

Estimated Quantity

Unit Price Item Total

1 Water Pollution Control Work LS 100% $1,000.00 $1,000

2 Construction Site Management LS 100% $2,000.00 $2,000

3 Concrete Removal CY 2 $1,000.00 $1,000

4 Structural Concrete CY 5 $5,000.00 $25,000

5 Bar Reinforcing Steel LB 640 $5.00 $3,200

6 Miscellaneous Iron and Steel LB 1,140 $5.00 $5,700

7 Flow Meter EA 4 $850.00 $3,400

8 Flow Control Valve EA 5 $500.00 $2,500

9 Sampling Port EA 3 $250.00 $750

10 Filter Media Type 1 CY 4 $450.00 $1,800

11 Filter Media Type 2 CY 4 $450.00 $1,800

12 Class 2 Permeable Material CY 2 $100.00 $200

13 1" PVC Pipe LF 6 $65.00 $390

14 2" PVC Pipe LF 100 $75.00 $7,500

15 2" x 1" PVC Pipe Reducer EA 8 $150.00 $1,200

16 2" PVC 90° Elbow EA 17 $150.00 $2,550

17 2" PVC Tee EA 7 $250.00 $1,750

18 2" PVC Corner Tee EA 1 $350.00 $350

19 2" PVC Terminal Riser EA 2 $500.00 $1,000

20 2" Perforated PVC Pipe LF 45 $35.00 $1,580

21 Cleaning Site and Miscellaneous Things LS 100% $1,000.00 $1,000

$65,67010% CONTINGENCY $6,567TOTAL $72,200

SUBTOTAL

Etty Street Pump Station Retrofit ProjectOakland, CA

Draft Engineer's EstimateDecember 30, 2013

12/30/2013

APPENDIX C: Ettie Street Pump Station Project –

100% Plans

71

LOCATION MAP

INDEX OF SHEETS

NO.SHEET DESCRIPTION

PROJECT LOCATION

VICINITY MAPALAMEDA COUNTY, CALIFORNIA

MAY 2006STANDARD PLANS

CALTRANS

ETTIE STREET PUMP STATION

ZONE NO. 12 PROJECT

ALAMEDA COUNTY, CALIFORNIAOAKLAND

(ADV) MONTH, YEAR

ALAMEDA COUNTY FLOOD CONTROLAND WATER CONSERVATION DISTRICT

IMPROVEMENTS AT THE

AT 3465 ETTIE STREET

CONVENTIONAL SYMBOLS

CB-###

PROJECT LOCATION

TITL

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concrete pavement.

or creeks. Collect sand and return it to the

stockpile, or dispose of it as trash.

from sand sealing into gutters, storm drains,

Comply with Alameda County Ordinances for recycling construction materials, wood,

gyp board, pipe, etc.

Runoff from streets and other paved areas is a major source of pollution and damage to creeks and the San

Francisco Bay. Construction activities can directly affect the health of creeks and the Bay unless contractors

and crews plan ahead to keep dirt, debris, and other construction waste away from storm drains and local

creeks. Following these guidelines and the project specifications will ensure your compliance with County of

Alameda requirements.

Storm drain polluters may be liable for fines of $10,000 or more per day!

Make sure your crews and subs do the job right!

Pollution Prevention - It's Part of the Plan

what should be done, and manage disposal of cntaminated soil according to their instructions.

underground tanks or pipes, or buried debris), call the Engineer for help in determining

If you suspect contamination (from site history, discoloration, odor, texture, abandoned

fiber rolls down-slope until soil is secure.

growing grasses as soon as possible. Place

erosion control fabric, or seed with fast-

prevent erosion by securing the soil with

If you disturb a slope during construction,

existing vegetation whenever possible.

erosion control. Minimize disturbance to

Mature vegetation is the best form of

Inspector in the Field.

by permit and as approved by the County

are only allowed during dry weather

Earth moving activities

Do not use water to wash down fresh asphalt

Do not sweep or wash down excess sand

with sand/gravel bags, or earthen berms.

Protect gutters, ditches, and drainage courses

slurry seal, or fog seal.

when paving or applying seal coat, tack coat,

Always cover storm drain inlets and manholes

If saw cut slurry enters a catch basin, clean it up immediately.

are finished in one location or at the end of each work day (whichever is sooner!).

Shovel, absorb, or vacuum saw-cut slurry and pick up all waste as soon as you

Use plastic sheeting (Visqueen) to keep slurry out of the storm drain system.

Always completely cover and barricade storm drain inlets when saw cutting.

Saw cutting

Paving/asphalt work

off the site.

Use fiber rolls, silt fences, or other control measures to minimize the flow of silt

Transfer to dump trucks should take place on the site, not in the street.

Keep excavated soil on the site where it will not collect in the street.

Earthwork & contaminated soils

Contaminated groundwater must be treated or hauled off-site for proper disposal.

Consult with the Engineer to determine what testing is required and how to interpret results.

In areas of known contamination, testing is required prior to reuse or discharge of groundwater.

or storm drain. Filtration or diversion through a basin, tank, or sediment trap may be required.

Be sure to notify and obtain approval from the Engineer before discharging water to a street, gutter,

extent possible.

or another on-site purpose to the greatest

Reuse water for dust control, irrigation,

Dewatering operations

steam cleaning equipment, etc.

on-site using soaps, solvents, degreasers,

Do not clean vehicles or equipment

storm drains, or creeks.

rinse water to run into gutters, streets,

bermed area that will not allow

on site, clean with water only in a

If you must clean vehicles or equipment

is big enough to prevent runoff.

in a bermed area or over a drip pan that

Fuel and maintain vehicles on site only

promptly.

until repairs are made; repair leaks

frequently. Use drip pans to catch leaks

Inspect vehicles and equipment for leaks

maintenance & cleaning

Vehicle and equipment

County Public Works Agency dispatch at (510) 670-5500

Report any hazardous materials spills immediately! Dial 911 or Alameda

Never wash spilled material into a gutter, street, storm drain, or creek!

to prevent leaks and spills from reaching the gutter, street, or storm drain.

When spills or leaks occur, contain them immediately and be particularly careful

the construction site at all times.

Keep a stockpile of spill cleanup materials (rags, absorbents, etc. ) available at

Spill prevention and control

Be sure to arrange for appropriate disposal of all hazardous wastes.

rain is forecasted within 24 hours.

careful not to use more than necessary. Do not apply chemicals outdoors when

Follow manufacturer's application instructions for hazardous materials and be

Store hazardous materials and wastes in water tight containers, store in

and federal regulations.

thinners, solvents, fuel, oil, and antifreeze) in accordance with city, county, state,

Label all hazardous materials and hazardous wastes (such as pesticides, paints,

Hazardous materials management

Repair or replace leaking dumpsters promptly. Check dumpsters regularly for leaks and to make sure they are not overfilled.

Recycle all asphalt, concrete, and aggregate base material from demolition activities.

work areas with water!

Sweep or vacuum streets and other paved areas daily. Do not wash down streets or

Use (but don't overuse) reclaimed water for dust control as needed.

catch basins. All construction material must be covered with a tarp and contained

Sand, dirt, and similar materials must be stored at least 10 feet (3 meters) from

Non-hazardous materials management

Materials storage & spill cleanup

hazardous waste.

Dispose of oil-based paint sludge and unusable thinner as

Filter paint thinners and solvents for reuse whenever possible.

Paint out excess oil-based

rollers, or containers in a sink.

paint before rinsing brushes,

Paint out excess water-based

materials in a gutter or street!

Never rinse paint brushes or

Painting

disposal off site.

remove it for appropriate

aggregate concrete and

from washing exposed

Collect the wash water

or onto the surrounding areas.

areas that will not allow discharge of wash water onto the underlying soil

Wash out concrete equipment/trucks off-site or into contained washout

storm drain.

and away from drainage areas. These materials must never reach a

Store concrete, grout, and mortar under cover, on pallets,

storage & waste disposal

Concrete, grout, and mortar

For references and more detailed information:

www.cleanwaterprogram.org

www.cabmphandbooks.com

Dispose of all containment and cleanup materials properly.

to prevent further tracking.

Sweep or vacuum any street tracking immediately and secure sediment source

entrances and exits to sufficiently control erosion and sediment discharges from site

Establish and maintain effective perimeter controls and stabilize all construction

Construction Entrances and Perimeter

and tracking off site.

or during wet weather or when rain is forecasted.

appropriate secondary containment, and cover them at the end of every work day

Cover all dumpsters with a tarp at the end of every work day or during wet weather.

with a perimeter control during wet weather or when rain is forecasted or when

not actively being used within 14 days.

the site. Run-on from off site shall be directed

within the site, and all runoff that discharges from

Effectively manage all run-on, all runoff

away from all disturbed areas or shall collectively

be in compliance.

within 2 days of forecasted rain and during wet weather.

Discontinue the application of any erodible landscape material

rain is forecasted or when not actively being used within 14 days.

materials (mulch, compost, fertilizers, etc.) during wet weather or when

Contain, cover, and store on pallets all stockpiled landscape

Landscape Materials

paint before cleaning brushes

in thinner.

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GENERAL NOTES: ABBREVIATIONS

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NOTES:

D6 6D

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6E

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DISTRIBUTION PIPING SYSTEM LAYOUT DETAIL COLLECTION PIPING SYSTEM LAYOUT DETAIL

NOTES:

LEGEND

A-

SECTION

41FIBERGLASS TANK DETAIL

B-

SECTION

C-

SECTION

D5

SECTION

A- -A

- CC-

-B B

-

PLAN

QUANTITIES

E5

SECTION

25

FLOW METER PIPING TYPICAL DETAIL

DISTRIBUTION PIPING

COLLECTION PIPING

4

47

7

DET

AIL

S A

ND

QU

AN

TITI

ES

6 7CB-###

ZON

E N

O. 1

2 PR

OJE

CT

ETTI

E ST

REE

T PU

MP

STA

TIO

NR

ETR

OFI

T PR

OJE

CT

NOTES:

-A

-A

TANK PLAN

TOP COVER PLAN VIEW

-

B

-

B

B-

SECTION

A-

SECTION

-C

-C

-1

-2

1-DETAIL

2-

DETAIL

3-

DETAIL

46

DETAIL

STANDARD BAR HOOKS AND BENDS

90° BEND180° BENDMAX. OFFSET BEND

-3

C-

SECTION

NOTE:

GENERAL NOTES:

APPLICABLE CODE:

SEISMIC DESIGN CRITERA:

CONCRETE:

EXPANSION JOINT DETAIL

PLATE LIFTING LUG DETAIL

STR

UC

TUR

AL

DET

AIL

S

7 7CB-###

ZON

E N

O. 1

2 PR

OJE

CT

ETTI

E ST

REE

T PU

MP

STA

TIO

NR

ETR

OFI

T PR

OJE

CT

clean watersheds for a clean bay (cw4cb) task 5 individual ...basmaa.org/portals/0/documents/project...

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