MAl-315]<1.1

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

13. ASBESTOS AIR SAMPLING PROTOCOL

The following air sampling protocols will be followed during dust-generating

activities:

1. The Contractor will notify the Port and Environmental Consultant a minimum of72-hours ( excluding weekends and holidays) prior to commencement of earth moving activities where disturbance of soil is planned.

2. Asbestos samples shall be collected using air sampling pumps with 0.45 µm pore size,25-mm diameter, mixed cellulose ester (MCE) membrane filters housed in conductive extension cowl cassettes.

3. Three (3) sample stations will be established at the construction fenceline locations as shown in Figure 1. These sample locations were selected to monitor air at the fence line for the project area in the generally downwind direction. Note that the buildings immediately south of the project site are unoccupied, and the land adjacent to the project site boundary to the east is an industrial yard that is not generally occupied by workers. Samples will be collected during operations anticipated between 7am to 4pm. Equipment will be inspected by regularly to ensure proper operation. To prevent vandalism, sampling equipment will be placed in locked boxes and, if possible, behind locked fences.

4. All obstructions, including vegetation over 12 inches high, shall be a minimum of 2 meters away from the sampling equipment. Sampling equipment shall have unrestricted airflow in an arc of at least 180 degrees, which includes the predominant wind direction with the greatest potential for asbestos concentrations to occur and shall be located at least 10 meters away from the drip line of any tree.

5. Cassettes will be situated at a 45-degree angle approximately 4 to 5 feet above the grounds surface. Sampling air flow rates will range from 0.5 to 5 liters for the duration of the dust generating activity.

6. Samples will be collected daily during the clearing, grubbing and localized excavation activities.

7. All asbestos structures with an aspect ratio greater than three to one (3:1) shall be counted irrespective of length

8. All QA/QC procedures and records will be made available upon request.

9. Samples will be sent to a contract laboratory and will be analyzed by CARB­AHERA TEM (Modified TEM) with a 0.001 s/cc detection limit on an 8-hour turnaround time from laboratory receipt.

10. No monitor will be moved more than 50 feet from the location described in this plan without notifying and receiving approval from the BAAQMD.

3438 Helen Street / Ookland, Califomi:a 94608 (510) 654-8441 / (510) 654-6447 (fax)

NAT-31:)."f.:.1

1. GENERAL

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

ASBESTOS DUST MITIGATION PLAN

CRANE CA VE PARK

SAN FRANCISCO

NA1-31574,1

As a precautionary and control measure for this project, this Dust Control Plan will be· used as a standard operating procedure.

• To eliminate origins of dust from the site;• To identify potential dust migration pathways;• To monitor for dust produced by site activities; and• To implement corrective actions as the need arises.

• This plan is being prepared in pursuant to Title 17 of the California Code ofRegulations (17 CCR) Section 93105, Asbestos Airborne Toxic ControlMeasure (ATCM) for Construction, site demo and Surface MiningOperations. The purpose of this plan is to propose dust mitigation measures tolimit airborne asbestos and identify air monitoring methods forimplementation during the project's grading, infrastructure development, andconstruction phases.

• Asbestos is a naturally occurring mineral that is commonly found inserpentine or ultramafic rock, which exists in abundance throughout the stateof California. Serpentine is the official state rock of California. The A TCMrequires that the project sponsor submit an Asbestos Dust Mitigation Plan(ADMP) to the BAAQMD for approval. The project sponsor shall not engagein any construction or grading operation on property containing naturallyoccurring asbestos, serpentine, or ultramafic rock where the area to bedisturbed is greater than one acre unless an ADMP for the operation has beenapproved by the BAAQMD.

• The provisions contained within this ADMP will be implemented at thebeginning, and maintained throughout the duration of construction activityand/or grading that may have the potential to disturb naturally occurringasbestos (NOA) at Crane Cove Park, ADMP will be submitted by GCto Bay Area Air Quality Management District (BAAQMD) for approval. Nodemolition activities will be initiated until BAAQMD approval is received.

3438 Helen Street / o.khnd, Californi>. 94608 (510) 654-8441 / (510) 654-8447 (fu)

NAl.)157.\. \

Project Description

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

NAl-3157'1-I

The purpose of this Asbestos Dust Mitigation Plan (ADMP) is to specify asbestos dust mitigation control practices, procedures, and notifications for demolition and redevelopment of the Crane Cove site at the Port of San Francisco. Base rocks underlying asphalts and building slabs as well as soils containing naturally occurring asbestos (NOA) have been identified at the site in concentrations greater than 0.25%. This plan addresses dust control measures that shall be implemented during removal ofhardscaped areas, clearing, grubbing and removal of two onsite cranes. A copy of this document will be made available to all persons involved with site activities.

The proposed scope of work will have roughly one acre of potential ground disturbing activity. The scope of work includes: demolition of buildings 249 and the cottage building, tentative relocation of building 30 and tower, removal of hardscape, and localized excavation up to four and a half feet below ground surface (bgs) to remove foundations associated with two on­site cranes. Excavation, grading, and removal of the crane foundation will be performed by other subcontractors.

The plan is prepared and submitted with the understanding that it can be modified to accommodate actual site conditions as they arise. This plan will be implemented in conjunction with the project Site Health and Safety Plan.

AMG also will consider a range of site conditions that would normally be encountered.

2. POTENTIAL DUST SOURCE• Demolition of existing structure and site improvements• Trucking of demolition debris from the site

Demolition of crane foundations and planned site activities that have the potential to generate emissions in the form of fugitive dust include:

A. Demolition Activities - Wrecking, moving or dismantling of a load-supportingstructural member or portion of a building, related cutting, disjointing,stripping, removal of structural elements, removal of existing at-grade featuressuch as pavement or foundations, and processing of concrete and asphalt forrecycling/ reuse may produce construction emissions.

3438 Helen Street/ Oakbnd, C:tlifomia 94608

(510) 654-8441 / (510) 654-8447 (fax)

NA.1•31.57.1.\

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

NAl-3157.i.1

B. Construction Traffic - Movement of construction equipment around theconstruction area can create construction emissions in excavated or clearedareas. There is also the potential for vehicular traffic on paved or unpavedroads and parking lots to produce construction emissions.

C. Site Preparation and Mass Grading - Clearing, grubbing, excavation,processing of rock for reuse as fill, grading, construction of site retainingwalls, and backfilling operations can produce both fugitive dust and vehiclee m1s s1o n s.

D. Off haul - Removal of excess soil and rock from site during mass grading fordisposal off site can produce both fugitive dust and vehicle emissions.

E. Material Stockpiles and Inactive Areas - Stockpiles of soil generated fromexcavation activities and exposed areas where soil has been disturbed maycontribute to wind borne dust emissions.

3. METHODS

The following methods will be used to prevent conditions conducive to dust generation and suppress dust should it occur.

• Prior to beginning demolition operations all materials planned for demolition shall bethoroughly wet using water from the nearest hydrant.

• Adjacent work entrance and road used for demolition will be free oftracked debris and/ or soil materials. At minimum, driveways, sidewalks, and streetsaffected by demolition will be cleaned on a daily basis by wet sweeping and/or washing.More frequent cleaning will be provided as necessary.

• Exposed excavations, disturbed ground surfaces, and unpaved traffic areas will bemaintained in a moist condition.

• During non-working hours, the site will be left in a condition that will prevent dust frombeing generated. At the end of each work day, disturbed areas will be wetted down andsecurity fencing will be installed and or inspected to prevent access and additionaldisturbance.

To comply with the ATCM, one or more of the following shall be implemented during work disturbing soils with NOA:

1. Watering every two hours of active operations or sufficiently often to keepthe area adequately wetted.

2. Applying chemical dust suppressants consistent with manufacturer's directions;

3438 Helen Street / Oakland, Californi2 94608 (510) 654-8441 / (510) 654-8447 (fax)

A� AMG

NAl-3157�-1 Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

3. Maintaining a gravel cover with a silt content that is less than five (5) percent andasbestos content that is less than 0.25 percent, as determined using an approvedasbestos bulk test method, to a depth of three (3) inches on the surface being usedfor travel; or

4. NO VISIBLE DUST GOAL

The dust control measures set forth in this plan are intended to achieve a goal of no visible dust emissions associated with soil disturbance or excavation, to the extent required by City Order 171,378 and BAAQMD Regulation 6, Rule I.

5. REGULATORYBACKGROUND

Dust control is one of the specific mitigation measures applicable to construction­related activities, and this plan specifically identifies the steps that will be taken to reduce dust emissions because of soil disturbance or excavation associated with grading, utility work, and construction of site infrastructure. This plan also includes the monitoring and reporting requirements.

This Asbestos Dust Mitigation Plan incorporates requirements of the following applicable regulations:

• California Code of Regulations (CCR) Title 17, Section 93105: TheAsbestos Airborne Toxic Control Measure (ATCM) for Construction,Grading, Quarrying, and Surface Mining Operations

• BAAQMD Regulation 6, Rule 1: Particulate Matter and Visible Emissions

• BAAQMD Regulation 11, Rule 14: Asbestos Containing Serpentine

• City of San Francisco Health Code, Article 22.B: Construction DustControl Requirements

• Order No. 171,378 of the Department of Public Works

• Mitigation Measure E-1. A: Construction Dust Control (PMlO)

• Mitigation Measure E-2: Naturally Occurring Asbestos Control

• Pier 70 Risk Management Plan (RMP)3438 Hden Street/ Oakhnd, California 94608

(510) 654-8441 / (510) 654-8447 (fax)

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

/'llAl,31574-1

A site-specific dust control plan is required by Article 22.B of the City of San Francisco Health Code. Article 22.B applies to any site preparation or construction activities taking place within the City and County of San Francisco that has the potential to create dust or that will expose or disturb soil.

Order No. 171,378 of the San Francisco Department of Public Works specifies a goal of no visible dust emissions from the site and outlines housekeeping measures required to meet this goal. Mitigation Measure E-1. A similarly def mes best management practices (BMPs) including wetting and seeding unpaved, inactive areas, minimizing activity during periods of high wind, sweeping paved areas, covering trucks, etc. Best management practices (BMPs) are required to be implemented throughout the duration of the project. Additionally, BAAQMD Regulation 6, which generally prohibits emission of visible dust beyond the property boundary, is also applicable.

Because the site is in an area with serpentine rock, CCR Title 17, Section 93105 (ATCM) applies. ATCM includes, among other things, the requirement for submission of this Asbestos Dust Mitigation Plan for BAAQMD approval prior to demolition activities, The ATCM also includes very specific practices to be implemented during construction. Mitigation Measure E-2 also provides BMPs for handling serpentine material, and BAAQMD Regulation 11, Rule 14 prohibits the use or sale of asbestos-containing serpentine materials for road surfacing.

6. EARTHWORK

Specific dust control measures for earthwork include, but are not limited to: 1. Pre-wetting the ground to the depth of anticipated cuts;2. Suspending grading operations when wind speeds are high enough to result in

dust emissions crossing the property line, despite the application of dustmitigation measures;

3. Application of water prior to any land clearing;

7. DUST MITIGATION

This section presents mitigation measures to control sources of fugitive dust generated by soil disturbance or excavation. The methods proposed meet the requirements of the A TCM and, in some cases, may actually be more stringent than the A TCM provisions. These mitigation measures are also presented in the project Dust Control Plan, which more generally addresses particulate matter emissions due to construction activities.

3438 Helen Street/ O.lwnd, C..iifonm 94608 (510) 654-8441 / (510) 654-8447 (fax)

NA1.)1S]J.\

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

8. TRACK-OUT PREVENTION AND CONTROL

MAl-3157,l-1

Asbestos airborne toxic control measure (17 CCR 93105(e)(4)(A)) requires prevention and removal of visible track-out from a paved road at any location where vehicles exit the work site.

A. AMG will keep entrance fee of visible debris.

B. All vehicle tires will also be inspected and washed as necessary to preventtrack-out prior to entering the paved roadway

C. AMG will sweep with a broom and clean portions of street right outside workentrance to avoid debris into street.

D. Any visible track-out on a paved public road at any location where vehiclesexit the work site will be removed using a wet sweeping vacuum device at theend of the work day.

9. ACTIVE STORAGE PILES

Asbestos airborne toxic control measure (17 CCR 93105(e)(4)(B)) requires active storage piles be adequately wetted or covered with tarps. Fugitive dust emissions from active soil storage piles will be controlled using the following methods:

A. Provide adequate wetting of all active NOA-containing waste storage areasor materials to be recycled from demolition activities to prevent dust frombecoming airborne (without creating run-off) as often as necessary.

10. ON-SITE TRAFFIC CONTROL

The asbestos airborne toxic control measure ( 17 CCR 93105( e )( 4)(D)) limits on­site traffic speeds to 15 miles per hour (mph) and requires stabilization of unpaved roads and parking areas by means of wetting, covering, and/or application of chemicals. Fugitive dust emissions from construction traffic traveling on unpaved surfaces will be controlled with the following mitigation measures:

3438 Helen Street / Oakbnd, C•lifomi• 94608 (510) 654-8441 / (510) 654-8447 (fax)

by using gravel pads and aa wheel wash system.

NAT-315?,1.1

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

NAT-3157,1, 1

A. All areas of truck traffic will be spray with water at the time of truckscoming in and out of the demolition work area.

B. Visible speed limit signs will be posted at the construction site entrances. Noconstruction vehicles will exceed 10 miles per hour (mph) (16 kilometers perhour [km/h]) within the construction site and 15 miles per hour (mph) offsitewithin 500 feet of the project.

C. Watering every two hours of active operations or sufficiently often to keep thearea adequate.

The following mitigation measures will be followed for fugitive dust emissions from construction traffic traveling on paved surfaces located on the site:

A. Construction areas adjacent to and above grade from any paved roadway willbe treated with BMPs, as specified in the Construction SWPPP.

B. Limit on-site traffic to only those vehicles necessary to support constructionactivities. Construction employees will park personal vehicles on paved streetsadjacent to the site.

If any of the above mitigation measures fail to properly control fugitive dust emissions. one or more of the following control measures. will be applied:

A. Water will be used at all the time while loading trucks to prevent from anyadditional dust getting air born.

B. Materials left pile up on work area will be spray with water at the end of theday to prevent any dust coming up after work have stopped.

Vehicle trips will be reduced if necessary.

3438 Helen Street / Oakhnd, Cwfomia 94608 (510) 654-8441 / (510) 654-8447 (fax)

NAl-315/4-1

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

11. CONTROL FOR OFF-SITE TRANSPORT

MAr.)157<1-1

The asbestos airborne toxic control measure (17 CCR 93105(e)(4)(F)) requires that trucks transporting excavated materials off site shall be wetted, loaded, and/or ta.rped such that spillage will not occur. Fugitive dust emissions from loading and off haul of waste materials will be controlled using the following methods:

A. Excavated material will be adequately wetted prior to loading into trucks foroff-haul.

B. Loader buckets will be emptied slowly and drop height from loader bucketminimized.

C. Trucks will be maintained such that no spillage can occur from holes orother openings in cargo compartments.

D. Halt all loading activities during periods of sustained strong winds, which aredefmed as having hourly average wind speeds of25 mpg (40 km/h org r ea t e r ).

E. Vehicles that are used to transport solid bulk materials that have the potentialto cause visible dust emissions will be provided with a tarp cover. Materialswill be sufficiently wetted and loaded onto the trucks in a manner to provide atleast 1 foot of freeboard to prevent potential spillage.

F. Vehicles that are used to transport solid bulk materials that have the potentialto cause visible dust emissions will be checked to provide that they are tarpedand any excess material on the shelf or exterior surfaces of the cargocompartment will be removed.

G. All hauling vehicles will exit the construction site through a stabilizedconstruction entrance consisting of gravel pads with a tire washing/cleaningstation that will be located at the entrance roadways prevent trackingof NOA containing material on to public roadways.

H. If any of the above mitigation measures fail to properly control fugitive dustemissions, one or more of the following reasonably available control measures,will be applied:

3438 Hden Street / Oakland, C:ilifornia 94608 (510) 654-8441 / (510) 654-8447 (fax)

NAl-31!,7,l,l

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

12. AIR MONITORING PROGRAM

NAT-31574.1

Asbestos airborne toxic control measure (17 CCR 93105(e)(4)(h)) does not require air monitoring for asbestos. It does, however, provide provisions which allow the District Air Pollution Control Officer (APCO) to require an air monitoring component. AMG will provide as required by CAL-OSHA personal monitoring, and results will be posted or on site with in 24 hours, any additional or required monitoring and perimeter monitoring sampling/program will be implemented by the city at the city discretion.

The goal of this ADMP is no visible dust emissions. Site controls and mitigation measures discussed in this plan will be implemented during construction activities in an effort to achieve the no visible dust goal. To verify compliance to this plan and to document conditions during excavation, an independent third party Consultant will perform monitoring during construction activities.

Site perimeter asbestos air monitoring is required and a monitoring program will be implemented by the designated asbestos consultant hired by the Port ofSan Francico over seeing the asbestos activities while abatement and demo is being performed. document the concentration of naturally occurring asbestos in ambient air. The air monitoring program includes upwind, downwind and crosswind sampling locations to determine the concentration of naturally occurring asbestos resulting from site development and construction activities that is potentially transported off site and into the nearby community.

For the purposes of this ADMP, no airborne asbestos monitoring is required when the construction site is shut down and no earth-disturbing activities are taking place. Monitoring will also not be conducted during periods where only normal construction vehicular traffic is conducted onsite.

Monitoring will continue during removal of all NOA base rock and NOA soil disturbing activities. Once removal of all identified NOA base rock and NOA soils has been completed (i.e., removal ofhardscape, clearing and grubbing across the site, and localized excavation around the two onsite cranes to facilitate removal), the BAAQMD will be notified and air monitoring will cease. (this work, excavating and grading to be done by other subs)

AMG will also provide as required by CAL-OSHA personal monitoring, and results will be posted or on site within 24 hours.

3438 Helen Street/ Oakland, California 94608 (510) 654--8441 / (510) 654-8447 (fox)

MAl-315]<1.1

A� AMG

Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

13. ASBESTOS AIR SAMPLING PROTOCOL

The following air sampling protocols will be followed during dust-generating

activities:

1. The Contractor will notify the Port and Environmental Consultant a minimum of72-hours ( excluding weekends and holidays) prior to commencement of earth movingactivities where disturbance of soil is planned.

2. Asbestos samples shall be collected using air sampling pumps with 0.45 µm pore size,25-mm diameter, mixed cellulose ester (MCE) membrane filters housed in conductiveextension cowl cassettes.

3. Three (3) sample stations will be established at the construction fenceline locations asshown in Figure 1. These sample locations were selected to monitor air at the fence linefor the project area in the generally downwind direction. Note that the buildingsimmediately south of the project site are unoccupied, and the land adjacent to theproject site boundary to the east is an industrial yard that is not generally occupied byworkers. Samples will be collected during operations anticipated between 7am to 4pm.Equipment will be inspected by regularly to ensure proper operation. To preventvandalism, sampling equipment will be placed in locked boxes and, if possible, behindlocked fences.

4. All obstructions, including vegetation over 12 inches high, shall be a minimum of 2meters away from the sampling equipment. Sampling equipment shall have unrestrictedairflow in an arc of at least 180 degrees, which includes the predominant wind directionwith the geatest potential to occur and shall be located at least 10 m away from the drip line of trees.

5. Cassettes will be situated at a 45-degree angle approximately 4 to 5 feet above thegrounds surface. Sampling air flow rates will range from 0.5 to 5 liters for theduration of the dust generating activity.

6. Samples will be collected daily during the clearing, grubbing and localized excavationactivities.

7. All asbestos structures with an aspect ratio greater than three to one (3:1) shall becounted irrespective of length

8. All QA/QC procedures and records will be made available upon request.

9. Samples will be sent to a contract laboratory and will be analyzed by CARB­AHERATEM (Modified TEM) with a 0.001 s/cc detection limit on an 8-hour turnaround timefrom laboratory receipt.

10. No monitor will be moved more than 50 feet from the location described in this planwithout notifying and receiving approval from the BAAQMD.

3438 Helen Street / Ookland, Califomi:a 94608 (510) 654-8441 / (510) 654-6447 (fax)

NAT-1157,1-1

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Asbestos Management Group of California, Inc. Asbestos, Lead, Mold Remediation,

and Demolition 586844, DOSH 271

B, C-21, C-2, ASB, HAZ

NAl-31574-1

11. Air Monitoring results will be reported to BAAQMD by the Contractor on a bi­weekly basis (every two weeks), in addition to the reporting of exceedance as

described below.

14. AIR MONITORING TRIGGERED DUST MITIGATION MEASURES

In the event that ambient air monitoring results indicate levels equal to or

above 1,600 Transmission Electron Microscope (TEM) structures per cubic meter, the BAAQMD will be notified immediately of the monitoring results indicating: the project RIN, sampler identification and location, actual TEM structures per cubic meter, the date the sample was taken and the date analysis was reported. Additionally, such a measurement will trigger an immediate on-site evaluation to determine if dust mitigation measures are still effective. If there is any evidence of dust generated from a source listed in Section 8 of this plan, then the corresponding control measures will be re-applied, and the optional control measures may be applied if applicable and necessary, until dust is abated and monitored ambient NOA levels drop below l,600TEM.

In the event that ambient air monitoring results indicate levels equal to or above 16,000 TEM structures per cubic meter , all earth-disturbingactivities will be suspended until dust is abated and ambient monitoring drops below 16,000 TEM structures per cubic meter at all monitoring location.

The action levels are based on health risk assessment protocols established by the

State Office of Environmental Health Hazard Assessment (OEHHA). It is our understanding that the BAAQMD considers these action levels to be conservative.

15. INACTIVE SURFACES? STORAGE PILES AND POST-CONSTRUCTIONSTABILIZATION

All inactive surfaces and storage piles generated by construction activities associated with the first phase of the Crane Cove Park Project will be adequately covered with tarps or vegetation, treated with a chemical bonding agent, hydro-seeded, or adequately wetted to manage potential as a means of suppressing dust and erosion control. All of the said mitigation measures will be performed by others.

3438 Helen Street/ Oakland, California 94608 (510) 654-8441 / (510) 654--8447 (fax)

For any results at or above 16,000s/m3, BAAQMD will be notified immediately.

In addition, a root cause analysis will be conducted and additional dust mitigation

measures will be implemented as needed. Root cause analysis findings and

additional mitigation measures will be reported to BAAQMD within 24 hours of

receiving the elevated reading.

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Sensitive Receptor Location Map

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1000’ buffer zone

Sensitive receptor

Albion Partners410 China Basin StreetSan Francisco, CA 94158

Figure

Air Monitoring Narrative

The weather station Potrero Hill KCASANFR880 on Weather Underground (located at Deharo

and Berry Street, not on Potrero Hill) is located approximately 0.7 miles to the northwest of

Crane Cove (https://www.wunderground.com/personal-weather-

station/dashboard?ID=KCASANFR880#history). Although wind direction is variable at this

station, the average wind direction throughout this month (February 2017) has been towards the

southwest or the southeast. During the months of March and April 2016, average wind direction

was towards the southwest or the west. The March-April 2016 readings are representative of the

time frame which work would be taking place as part of this project.

The attached map shows the prevailing wind direction and the proposed sample locations which

were based on locations of sensitive receptors. The current proposed monitoring locations would

best measure any fugitive dust from the project. Sample locations to the east are not

recommended as the site is bound by the Bay and an unoccupied storage yard in this direction.