CN-370000-HW560-BF005C.pdf.crdownload

Tetra Tech, Inc.

1558 Village Square Blvd., Ste. 2, Tallahassee, FL 32309-2478

Tel 850.385.9899 Fax 850.385.9860 www.tetratech.com

TetraTech/TAL-17-078-PSM8287

October 27, 2017

Department of Environmental Protection Waste Cleanup Programs ATTN: Ms. Carrie Kruchell MS #4535 Bob Martinez Center 2600 Blair Stone Road Tallahassee, Florida 32399-2400

Reference: Florida Department of Environmental Protection (FDEP) Waste

Cleanup Programs Consolidated Contract HW560

Subject: Revised Fourth Cost Proposal – Monitoring Well Installation and

Groundwater Sampling at the Avalon Inn Property located at 443 4th Avenue North St Petersburg, Pinellas County, Florida

Dear Ms. Kruchell:

Tetra Tech is pleased to submit this revised cost proposal including the attached Contract HW560 Cost Estimate Spreadsheet for: monitoring well installation, groundwater sampling, and reporting for the Avalon Inn Property located at 443 4th

Avenue North St Petersburg, Pinellas County, Florida. This letter and spread sheet has been revised for expedited laboratory analysis. The field services, which include associated travel and equipment, will be provided by a 1-person crew. Services provided in this proposal will be completed as three separate tasks and include the following activities:

Task 1 - Project Management: Project Management includes managing the project scope, schedule, and budget; and procurement of subcontractors. The level of effort is based on the HW560 Contract requirements and assumes 9 hours for Task 1.

Task 2 – Monitoring Well Installation; and Groundwater Sampling and Analysis:

Monitoring Well Installation o One experienced Tetra Tech Geologist will observe and document installation of monitoring wells that will be installed using Direct Push Technology (DPT). Two shallow monitoring wells will be installed to 17 feet beneath the land surface (bls) (note; this is the depth of existing shallow monitoring wells) and a deep monitoring well will be installed to 35 feet bls. The shallow wells will be constructed of nominal 1.5-inch diameter, pre-packed schedule-40 polyvinyl chloride (PVC) with 10 feet of

0.10-inch pre-packed slotted screen. The deep well will be constructed of nominal 1.5-inch diameter, pre-packed schedule-40 PVC with 5 feet of 0.10-inch pre-packed slotted screen. A PVC end-cap or well point located at the bottom of each well. Each monitoring well will be completed as a flush mount well with and 8-inch diameter bolt down well vault. Upon completion, the monitoring well will be developed by over pumping with a peristaltic pump until it produces relatively sediment free non-turbid water.

The top of casing elevations of the new monitoring wells will be surveyed relative to the existing monitoring wells by the Tetra Tech Geologist. The level of effort (20 hours) assumes: the Geologist will have two hours of fieldwork preparation time prior to the field work; will mobilize-demobilize from the Tallahassee office (eight hours); and will have 1-1/2 days onsite (one 10-hour day and one 5-hour day onsite). The additional ½ day on site is required to allow the required 24 hours between the well installation and development. The scope of work and quote for monitoring well installation is provided in Attachment A.

o The two hours of fieldwork preparation time by the Geologist is to have underground utility locations marked, obtain field equipment, and decontaminate field equipment.

Groundwater Sampling and Analysis o One experienced Tetra Tech Sampler will collect groundwater samples in accordance with FDEP standard operating procedures from the six existing wells and the three newly installed wells. The groundwater sampling event will occur approximately one week after well installation to allow for stabilization of the aquifer conditions. The level of effort (30 hours) assumes: the Sampler will have two hours of fieldwork preparation time prior to sampling the monitoring wells (order sampling equipment and laboratory analysis, and check the sample bottles); will mobilize-demobilize from the Tallahassee office (eight hours); and will require two 10-hour days onsite to sample the monitoring wells.

o Nine groundwater samples from existing and newly installed monitoring wells plus QA/QC samples will be analyzed by an offsite laboratory for petroleum related constituents including: volatile organics (USEPA Method 8260), polynuclear aromatic hydrocarbons (USEPA Method 8270/8310), lead (USEPA Method 6010), and total petroleum hydrocarbons by Florida-Petroleum Residual Organics (FL-PRO). As per FDEP’s request, the sample analysis will be expedited to a 3-day turnaround.

o Two groundwater samples, collected from existing monitoring wells MW-2 and MW-4, will be analyzed for total dissolved iron and manganese (USEPA Method 6010), chemical oxygen demand (SM522), biological oxygen demand (5 day) (SM5210), and methane (USEPA Method 3810) to baseline these parameters for possible in-situ remedial alternatives for groundwater. As per FDEP’s request, the sample analysis will be expedited to a 3-day turnaround for all analysis except biological oxygen demand which requires 5-day for completion.

o The cost for laboratory analysis is provided in HW560 Cost Estimate Spreadsheet in Attachment B.

o Field forms and a field log book will be used to document the in-situ tank closure activity, monitoring well installation, and groundwater sampling activities completed by the Tetra Tech Sampler.

Task 3 – Groundwater Assessment Report:

o Draft and final reports will be prepared that describe the in-situ tank closure activity, and monitoring well installation and groundwater sampling results. The report will evaluate current site groundwater conditions and potential in-situ remedial alternatives that could be implemented for the petroleum-related constituent plume. The report will include tables and figures that provide a comparison of the soil sample analytical results to Groundwater Cleanup Target Levels per Chapters 62- 780, and 62-777, Florida Administrative Code.

o The report will be prepared at the Tetra Tech Tallahassee office (Review:

Scientist V, 4 hours; Document preparation: Engineer V, 8 hours, Scientist IV, 4 hours, and Engineer I, 58 hours) with support from the Jacksonville office (GIS figure preparation, 4 hours and Project Assistant editing & publication, 4 hours).

o An electronic copy of the draft Completion Report will be sent to FDEP by email or placed on the FDEP FTP site for FDEP review. FDEP comments received on the draft document will be addressed and a final document will be emailed or placed on the FDEP FTP site.

o Following FDEP approval of the electronic version of the final document, Tetra Tech will submit to FDEP two paper copies (one bound and one unbound) and two electronic copies on compact disk (CD) of the Final Report.

PROJECT ASSUMPTIONS

The assumptions provided below were derived to design a suitable Scope of Work and to calculate the appropriate costs required to complete this project.

1. The current site owner and FDEP will facilitate access to the Site for Tetra Tech.

2. The current site owner will be responsible for removing and replacing the gate and fence along Brick Alley.

3. Two shallow and one deep monitoring wells will be installed at the site.

4. Groundwater sampling will be collected from six existing monitoring wells and the three newly installed monitoring wells.

5. The top of casing elevations of the three new monitoring wells will be surveyed relative to the existing monitoring wells by the Tetra Tech.

6. All work shall be conducted in accordance with OSHA Rules CFR 29 Part 1910.120, Hazardous Waste Operations and Emergency Response and Handling Standard Terms and Conditions.

7. The UST Abandonment will be conducted under a separate Task Order.

ESTIMATED COST

Attachment A provides the Subcontractor estimated cost received for the monitoring well installation (DrillPro LLC provided the winning bid). Attachment B provides the Contract HW560 Cost Estimate Spreadsheet that contains the estimated cost details for the proposed scope of work and an evaluation of the bids provided by the subcontractors.

Tetra Tech anticipates completion of this project on a fixed price basis and will invoice costs incurred at the completion of Task 2 and the completion of Task 3.

ESTIMATED SCHEDULE

Tetra Tech will commence work upon receipt of the signed task order and anticipates project completion within ten calendar weeks including document review. It is anticipated that the task assignment will be issued before September 30, 2017. The proposed schedule begins with the issuing of a FDEP Task Assignment and includes:

Two weeks for completing the contracts with the subcontractors;

Three days for monitoring well installation;

The monitoring wells will be sampled a minimum of one week after the installation of the monitoring wells and will require two days to complete;

Three to five days for laboratory analysis of the groundwater samples;

Three weeks for preparing the draft report; and

Two weeks for FDEP document review, addressing comments and submitting the final report.

If you have any questions, please call myself or Frank Lesesne at (850) 385-9899.

Sincerely yours, Gerald Walker, P.G.

Program Manager

GAW/gaw Attachments c: Jay McGovern, Tetra Tech Frank Lesesne, Tetra Tech Tallahassee File FDEP Contract HW 560

FIGURES

³

1,000 1,0000 Feet

CONTRACT NUMBER

APPROVED BY

APPROVED BY

DATE

DATE

FIGURE NO. REV

Site Location Map Avalon Inn Property

443 4th Avenue North to 453 4th Avenue North St. Petersburg, Pinellas County, FL

112IC08020

DATE

AS NOTED

SCALE

DATECHECKED BY

DRAWN BY

J.MADDEN 09/08/16

F.LESESNE 09/08/16

DATEREVISED BY

LEGEND

JAX: C:\GIS\Petro Sites\Avalon Inn\Figure_1_Site_Location.mxd

Site Boundary

Quad Name: Saint Petersburg

Pinellas County Florida

Site Location

4th Ave N

Brick Alley

³

50 500 Feet

CONTRACT NUMBER

APPROVED BY

APPROVED BY

DATE

DATE

FIGURE NO. REV

Site Map Avalon Inn Property

443 4th Avenue North to 453 4th Avenue North St. Petersburg, Pinellas County, FL

112IC08020

DATE

AS NOTED

SCALE

DATECHECKED BY

DRAWN BY

J.MADDEN 09/13/16

F.LESESNE 09/13/16

DATEREVISED BY

LEGEND

JAX: C:\GIS\Petro Sites\Avalon Inn\Figure_2_Site_Map.mxd

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Proposed Shallow Well Location Proposed Deep Well Location

MW5

MW6

MW7

Attachment A

Contract HW560 Cost Estimate Spreadsheet

FDEP COST ESTIMATE

Contractor: Tetra Tech, Inc.

Date: October 27, 2017

Task #: HW560 SubTask 1 Project Management

Site: Avalon Inn SubTask 2 Well Installation & Groundwater Sampling

Activity/Phase: Well Installation and Groundwater Sampling SubTask 3 Groundwater Monitoring Report

Project Manager: Carrie Kruchell SubTask 4

SubTask 5

Totals 1 2 3 4 5

Labor Rate Category

$57.80 Project Manager (GW) 9 9.1

$51.73 Scientist V (FL) 8 4 4 0 0

$53.56 Engineer V (MJ) 8 0 8 0 0

$39.71 Scientist IV (BO) 59 55 4 0 0

$23.65 Engineer I (MQ) 50 0 50 0 0

$34.22 Staff GIS Specialist (JM) 4 0 4 0 0

$28.02 Project Assistant (JJ) 4 0 4 0 0

Total Hours 142 9 59 74 0 0

Direct Labor $4,711.71 $523.52 $2,390.97 $1,797.22 $0.00 $0.00

Overhead 143.00% $6,737.74 $748.63 $3,419.09 $2,570.02 $0.00 $0.00

Gen & Admin 12.20% $1,396.83 $155.20 $708.83 $532.80 $0.00 $0.00

Fringe 0.00% $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Total Labor $12,846.28 $1,427.35 $6,518.89 $4,900.04 $0.00 $0.00

Other Direct Costs $235.59 $26.18 $119.55 $89.86 $0.00 $0.00

Travel

Vehicle Rental $485.00 $485.00 $0.00 $0.00 $0.00

Mileage Costs $0.00 $0.00 $0.00 $0.00 $0.00

Air Fare $0.00 $0.00 $0.00 $0.00 $0.00

Per diem + Hotel $660.00 $660.00 $0.00 $0.00 $0.00

Total Travel $1,145.00 $1,145.00 $0.00 $0.00 $0.00

Subcontractor (Equipment Procurement)

$0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor Subtotal $0.00 $0.00 $0.00 $0.00 $0.00

Procurement Fee $0.00 $0.00 $0.00 $0.00 $0.00

Total Subcontractor Cost $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor (Services Procurement)

Transportation & Disposal $2,714.00 $2,714.00 $0.00 $0.00 $0.00

Drilling (Non-conventional) $0.00 $0.00 $0.00 $0.00 $0.00

Mobile Laboratory $0.00 $0.00 $0.00 $0.00 $0.00

Surveying $0.00 $0.00 $0.00 $0.00 $0.00

IDW $0.00 $0.00 $0.00 $0.00 $0.00

Utilities $0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor Subtotal $2,714.00 $2,714.00 $0.00 $0.00 $0.00

Handling Fee $271.40 $271.40 $0.00 $0.00 $0.00

Total Subcontractor Cost $2,985.40 $2,985.40 $0.00 $0.00 $0.00

Laboratory

Analytical Costs $5,726.50 $5,726.50 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00

Sample Shipping $416.00 $416.00 $0.00 $0.00 $0.00

Total Laboratory $6,142.50 $6,142.50 $0.00 $0.00 $0.00

Field Expenses

Hand Auger $0.00 $0.00 $0.00 $0.00 $0.00

Monitoring Well Installation Kit $368.60 $368.60 $0.00 $0.00 $0.00

Groundwater Sampling Kit $417.10 $417.10 $0.00 $0.00 $0.00

Expendables $162.50 $162.50 $0.00 $0.00 $0.00

Personal Protection (Level D) $140.00 $140.00 $0.00 $0.00 $0.00

Encore Sampler $0.00 $0.00 $0.00 $0.00 $0.00

Total Field Expenses $1,088.20 $1,088.20 $0.00 $0.00 $0.00

Subtotal $24,442.97 $1,453.53 $17,999.54 $4,989.90 $0.00 $0.00

Completion Fee $1,284.63 $142.74 $651.89 $490.00 $0.00 $0.00

Total Estimated Cost $25,727.60 $1,596.27 $18,651.43 $5,479.90 $0.00 $0.00

REV: 03/23/17 Page 1

LEVEL OF EFFORT/EXPENSE WORKSHEET

SITE :

SUBTASK 2: Well Installation & Groundwater Sampling

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Scientist V (FL) Tallahassee Office; Fieldwork coordination, communication & oversight 4

Engineer V (MJ)

Scientist IV (BO) 55

Engineer I (MQ) 0

Staff GIS Specialist (JM) 0

Project Assistant (JJ) 0

TOTAL LABOR 59

FIELD EXPENSES ITEM RATE COSTING UNIT USAGE TOTALS

Equipment

Hand Auger $8.25 Each 0 $0.00

Monitoring Well Installation Kit $184.30 Day 2 $368.60

Shallow Groundwater Sampling Kit $208.55 Day 2 $417.10

Expendables $32.50 Day 5 $162.50

Personal Protection (Level D) $28.00 Day 5 $140.00

Encore Sampler $8.75 Each 0 $0.00

TOTAL EQUIPMENT $1,088.20

VEHICLE TYPE RATE UNIT USAGE

Van/Truck $97.00 day 5 $485.00

Car $68.00 day 0 $0.00

Subtotal $485.00

Mileage Miles 0

TOTAL VEHICLE $485.00

PER DIEM STAFF RATE UNIT USAGE

MEALS

Scientist III (WO) $36.00 Day 5 $180.00

Engineer I (MQ) $36.00 Day 0 $0.00

HOTEL

Scientist III (WO) $120.00 Day 4 $480.00

Engineer I (MQ) $120.00 Day 0 $0.00

TOTAL PER DIEM $660.00

LABORATORY COSTS

PARAMETER Media Method RATE # SAMPLES #QAQC Expidated Analysis

Volatiles Liquid 8260 $135.00 9 2 Three Day Turn Around x 50% $2,227.50

Semivolatiles Liquid 8270 $100.00 9 1 Three Day Turn Around x 50% $1,500.00

Pesticides Liquid 8081 $90.00 0 0 $0.00

Herbicides Liquid 8151 $150.00 0 0 $0.00

TRPH Liquid Florida PRO $84.00 9 1 Three Day Turn Around x 50% $1,260.00

Lead Liquid 6010 $11.50 9 1 Three Day Turn Around x 50% $172.50

Total Dissolved Fe and Mn Liquid 6010 $23.00 2 0 Three Day Turn Around x 50% $69.00

COD Liquid SM5220 $25.00 2 0 Three Day Turn Around x 50% $75.00

BOD (5 day) Liquid SM5210 $25.00 2 0 Seven Day Turn Around x15% $57.50

Methane/CO2/02 Liquid 3810 $110.00 2 0 Three Day Turn Around x 50% $330.00

In-line Filter (0.45 Micron) $17.50 2 0 $35.00

Subtotal $5,726.50

Cost Containers

Sample Shipping $104.00 4 $416.00

Subtotal $416.00

TOTAL LAB $6,142.50

SUBCONTRACTOR COSTS

NAME PURPOSE COST Units

DrillPro LLC Monitoring Well Installation $2,714.00 $2,714.00

$0.00 $0.00

TOTAL $2,714.00

Avalon Inn

Tallahassee Office; Monitoring well installation oversight; surveying monitoring well top of well casings, groundwater sampling; and submittal of groundwater samples for laboratory analysis

REV: 03/23/17 Page 2

LEVEL OF EFFORT/EXPENSE WORKSHEET

SITE :

SUBTASK 3: Groundwater Monitoring Report

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Scientist V (FL) Tallahassee Office; Document review by a PG 4

Engineer V (MJ) Austin Office; Evaluate potential in-situ remeidal alternatives for groundwater 8

Scientist IV (BO) 4

Engineer I (MQ) 50

Staff GIS Specialist (JM) Jacksonville Office; Figure preparation 4

Project Assistant (JJ) Jacksonville Office; Document editing & publication 4

TOTAL LABOR 74

FIELD EXPENSES ITEM RATE COSTING UNIT USAGE TOTALS

Equipment

$0.00

Expendables $32.50 Day 0 $0.00

Personal Protection (Level D) $28.00 Day 0 $0.00

OVA (Ambient air monitoring & soil sample screening) $426.00 Week 0 $0.00

$0.00

TOTAL EQUIPMENT $0.00

VEHICLE TYPE RATE UNIT USAGE

Van/Truck $97.00 day 0 $0.00

Car $68.00 day 0 $0.00

Subtotal $0.00

Mileage Miles 0

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USAGE

MEALS

Scientist III (WO) $36.00 Day 0 $0.00

Engineer I (MQ) $36.00 Day 0 $0.00

HOTEL

Scientist III (WO) $120.00 Day 0 $0.00

Engineer I (MQ) $120.00 Day 0 $0.00

TOTAL PER DIEM $0.00

LABORATORY COSTS

PARAMETER Media Method RATE # SAMPLES #QAQC

Volatiles Solid 8260 $135.00 0 0 $0.00

Semivolatiles Solid 8270 $100.00 0 0 $0.00

Pesticides Solid 8081 $90.00 0 0 $0.00

Herbicides Solid 8151 $150.00 0 0 $0.00

PCBS Solid 8082 $66.00 0 0 $0.00

Metals (Ar, Cd, Cr, and Pb) Solid 6010 $50.00 0 0 $0.00 RCRA 8 Metals (Ar, Ba, Cd, Cr, Pb, Se, Ag) Solid 6010 $87.50 0 0 $0.00

Mercury Solid 7470/7471 $25.00 0 0 $0.00

TRPH Solid Florida PRO $84.00 0 0 $0.00

Subtotal $0.00

Cost Containers

Sample Shipping $104.00 0 $0.00

TOTAL LAB $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST Units

$0.00

TOTAL $0.00

Avalon Inn

Tallahassee Office; Document preparation; description of field activities including monitoring well installation, groundwater sampling, and laboratory analysis; and text, tables and figures

Tallahassee Office; doucment field activities for report

REV: 03/23/17 Page 3

Attachment B

Estimated Monitoring Well Installation Cost

TECHNICAL SPECIFICATION

FOR

DRILLING SERVICES

AVALON INN PROPERTY

443 4TH AVENUE NORTH

ST. PETERSBURG, FLORIDA

TETRA TECH, INC.

FLORIDA BROWNFIELDS PROGRAM

CONTRACT HW560

September 2017

-i-

TABLE OF CONTENTS

SECTION PAGE

1.0 INTRODUCTION

1.1 DEFINITIONS

1.2 SITE DESCRIPTION

1.2.1 Location of Work

1.2.2 Description of Work Area

1.3 SCOPE OF WORK

1.3.1 Subsurface Conditions

1.3.2 Potential Hazardous Exposures

1.3.3 Services Provided by the Engineer

2.0 TECHNICAL REQUIREMENTS

2.1STANDARDS

2.2 GENERAL OPERATIONS

2.3 MOBILIZATION/DEMOBILIZATION

2.4 SITE ACCESS AND PREPARATION

2.5 TEMPORARY EROSION AND SEDIMENTATION CONTROL

2.8 MONITORING WELL DRILLING TECHNIQUES

2.9 DRILLING FLUIDS

2.10 MONITORING WELL INSTALLATION

2.12 WELL DEVELOPMENT

3.0 OTHER REQUIREMENTS

3.1 PERMITS

3.2 DECONTAMINATION AND WASTE HANDLING

3.2.1 DECONTAMINATION PAD CONSTRUCTION

3.2.2 EQUIPMENT DECONTAMINATION

3.2.3 PPE DECOMTAMINATION

3.2.4 WASTE HANDLING

3.3 EQUIPMENT

3.4 MATERIALS/SUPPLIES

3.5 RESTORATION

3.6 HEALTH AND SAFETY

-ii-

3.6.1 PERSONAL PROTECTION

3.6.2 SITE ORIENTATION

3.6.3 TRAINING AND MEDICAL REQUIREMENTS

3.7 DOCUMENTATION

Figures

1 Site Location Map

2 Site Map

3 Proposed Monitoring Well locations

Attachments

1 Pricing Form

-1-

1.0 INTRODUCTION

Tetra Tech, Inc. (Tetra Tech) is assisting the Florida Department of Environmental Protection (FDEP) in investigating Avalon Inn Property is located at 443 4th Avenue North in St. Petersburg, Pinellas County, Florida (Figures 1 and 2). This investigation will focus on determining the nature and extent of petroleum-related constituent contamination in groundwater that are associated with past site operations. The work described in this specification will be conducted under the FDEP Contract HW560.

1.1 DEFINITIONS

Tetra Tech Site Representative - The on-site Tetra Tech employee(s) monitoring the implementation of this specification by the Subcontractor.

Subcontractor - Provider of the services defined in this specification.

Project Manager - The Tetra Tech Site Manager responsible for implementing and executing the work by the Subcontractor as described in this specification.

Investigation Derived Waste (IDW) - Waste materials generated by the Subcontractor while working on the

Site. Such materials include, but are not limited to groundwater, soil, decontamination fluids, used personal protective equipment (PPE), and general waste.

1.2 SITE DESCRIPTION

The subject site has an abandoned steel underground storage tank (UST) that is reported to be approximately 500-gallons. The UST is reported to have been used for storing heating oil associated with a former fuel oil furnace which was installed in the basement of the Avalon Inn building. LES reportedly found a permit that indicated a fuel oil furnace being installed on-site during 1948. Based on this information LES assumed that the tank was installed during 1948 and was subsequently in service for approximately 30 years.

1.2.1 Location of Work

The Avalon Inn Property is located at 443 4th Avenue

North in St. Petersburg, Pinellas County, Florida.

1.2.2 Description of Work Area

The Avalon Inn Property site is an out building to an active hotel. The site consists of pavement, except for where the building is located. There is one access point to the site off the unnamed alley on the north side of the property. The site can be accessed from the unnamed alley on the north side of the property via a gate which the property owner stated they would remove for site access.

UST

Location

Access Gate

-2-

Storage Areas

The Subcontractor shall confine its storage areas to the limits as designated or approved by Tetra Tech and the site owner. The property is an active Inn and is accessed by employees and civilians.

Upon completion of the work, the Subcontractor shall remove all stored equipment and materials, and restore the site to the condition it was in at the start of the subcontract as approved by Tetra Tech, at no additional cost to Tetra Tech.

Access to Work Site

The Subcontractor will coordinate daily arrival times and access arrangements with Tetra Tech personnel.

Tetra Tech projects 3 days to complete these task which consist of approximately 10 to 12 hours of on-site labor per day. Working through the weekend may be required. Subcontractor personnel, trucks and vehicles visiting, delivering, or working at the site must coordinate daily arrival times and access arrangements with Tetra Tech personnel.

Transportation Routes

The Subcontractor shall coordinate the use of municipal, State and Federal highways, roads, streets, and bridges.

Site Facilities

Office or storage facilities are not available on-site to the subcontractor, nor will they be provided to the

Subcontractor by Tetra Tech or by Avalon Inn. The Subcontractor may choose to provide sanitary facilities for work crews, as needed. Location of the sanitary facilities must be approved by Tetra Tech and Site owner prior to placement.

Subcontractor's Receipt of Supplies

The Subcontractor shall be responsible for all arrangements for the receipt of materials and supplies at the job site. Tetra Tech and the site personnel are not permitted to receive or sign for Subcontractor’s items delivered to the site.

Organization and Rate of Progress

The Subcontractor shall employ sufficient personnel and equipment to complete the work described within the execution period specified.

1.3 SCOPE OF WORK

The Subcontractor shall provide all equipment, personnel, and materials, except as otherwise noted, to accomplish the following tasks:

Mobilize.

Provide personal protection.

Construct and maintain decontamination pad.

Properly prepare each drill site.

Core through asphalt or concrete at 3 monitoring well locations

Conduct equipment decontamination between each boring/monitoring well installation.

-3-

Drill and install up to 2 shallow water table zone monitoring wells (MW6 and MW7 to total depths estimated at 17 feet each); and one deep monitoring well (MW5 to total depth estimated to be 35 feet) (Figure 3). The total linear footage is estimated at 69 feet.

Construct flush mount, bolt- down surface well completions for each monitoring well.

Develop each shallow and deep monitoring well.

Containerize and move all IDW and stage 55-gallon DOT approved drums at designated staging area. The subcontractor will be responsible for providing appropriate equipment to manage the

IDW.

Restore site to similar previously existing conditions as appropriate.

Demobilize.

1.3.1 Subsurface Conditions

The lithology encountered by the soil borings typically consisted of: a light grey fine sand to tan fine sand to 5 feet below land surface (bls); a light brown fine sand to dark brown fine sand with increasing silt from

5 to 11 feet bls, and a dark brown silty fine sand or fine sand with silt from 11 feet bls to the explored depth of 20 feet bls. Groundwater was encountered at approximately 8 to 10 feet bls during previous sampling activities.

This description is provided to familiarize the Subcontractor with the general subsurface conditions at the

Site. The description is not comprehensive and may not be complete. Moreover, the subsurface conditions encountered by the Subcontractor may differ from those stated in this section. The Subcontractor, and not

Tetra Tech, is responsible for assessing the subsurface conditions at the Site when scoping, estimating, and implementing the services described in this technical specification.

1.3.2 Potential Hazardous Exposures

In general, the potential hazards are petroleum-related constituent compounds. Historical documents indicate that petroleum-related constituents may be present in soils and groundwater at the site.

Assessment findings indicate that subsurface soil in the vicinity of the 500 gallon UST has been impacted by TRPH at concentrations that exceed Residential and Leachability to Groundwater SCTLs. In addition, a petroleum-related constituent plume exist in the site groundwater (Figure 3). The petroleum-related constituent plume appears to consist of xylenes, 1-methylnaphthalene, 2-methylnaphthalene, naphthalene, and TRPH. Although lead was detected at concentrations exceeding its GCTL, it is believed that this is due to sample turbidity. The constituents in the petroleum-related constituent plume do not exceed their

NADCs. The petroleum-related constituent plume appears to be migrating towards the southwest based on the groundwater flow at the site.

1.3.3 Services Provided by the Engineer

To clarify the Engineers’ obligations during this investigation, the services to be provided by the Engineer are summarized below.

Select the locations and depths of the borings and monitoring wells. Although it is not anticipated, the Engineer reserves the right to reduce or increase the number of boring and monitoring well locations and/or soil samples in the program.

Facilitate the Subcontractor's right-of-access to the sampling locations.

Coordinate location of underground utilities.

-4-

2.0 TECHNICAL REQUIREMENTS

The technical requirements for the proposed work include standards, general operations, and methods to perform the work.

2.1STANDARDS

The Subcontractor must be a licensed Florida well contractor and hold a valid technical drillers license.

The Subcontractor must provide records of Occupational Safety and Health Administration (OSHA) 40-hour training, current 8-hour refresher training and medical monitoring.

The Subcontractor shall be responsible for obtaining all required local, state, and Federal permits necessary to perform all activities described in this document.

Monitoring wells shall be installed and completed in conformance with:

Florida Department of Environmental Protection. 2008. Standard Operating Procedures for Field

Activities. DEP-SOP-001/01. December.

2.2 GENERAL OPERATIONS

The anticipated duration of the work is estimated to be 2 days (work days). Each work day is planned to include 10-12-hours of on-site time. Working through the weekend may be required.

A temporary decontamination pad shall be set up at the Site at a location to be determined by Tetra Tech.

Details pertaining to decontamination requirements are presented in Section 3.0. The Subcontractor is required to containerize, secure, transport, and stage the IDW at a central storage area to be determined by Tetra Tech.

Drilling operations will be initiated in OSHA Level D PPE. While the need for any upgrading of this level of

PPE is not anticipated, air monitoring will be conducted by Tetra Tech to determine if any such need arises during the performance of on-site activities. The Subcontractor is responsible for providing all appropriate protective equipment for their personnel.

The Subcontractor shall provide all personnel, equipment, and materials necessary to conduct all operations in accordance with this statement of work and all applicable federal, state, and local regulations.

Drilling and well completion will be conducted at the work area described in Section 1.3. Estimated drilling quantities and other price items are presented in the attached Price Form for drilling services. The actual quantities may vary based on the conditions encountered during drilling.

2.3 MOBILIZATION/DEMOBILIZATION

Tetra Tech will pre-mark anticipated drilling locations. Tetra Tech and Avalon Inn will be responsible for all utility clearance within the property. The Subcontractor shall be responsible for obtaining all required local, state, and federal permits necessary for performing drilling activities. All equipment and materials (including decontamination supplies and Health and Safety equipment) intended for use at the Site shall be mobilized to the Site prior to the initiation of work.

-5-

The Subcontractor shall furnish a drill rig that is capable of advancing tools to collect soil samples and installed monitoring wells to the depths specified in this request for drilling services. The Subcontractor shall furnish support crew, all necessary tools, PPE for the drill crew, and any miscellaneous equipment and materials required to complete the described activities. All subcontractor personnel working on-site shall provide proof of 40-hour HAZWOPER training, current 8-hour refresher training, and current medical clearance (in accordance with OSHA 29 CFR 1910.120 regulations), within five (5) business days of

Subcontract award before they are allowed to initiate work.

All down-hole equipment, sampling tools, and the drilling rigs must be steam cleaned on-site prior to initiating work activities. All safety shut-off equipment (i.e., “kill switch”) must be in full working condition and will be tested by Tetra Tech prior to initiating drilling activities and daily thereafter. Other equipment that shall be periodically checked prior to initiating drilling activities at the Site includes, but is not limited to, an audible back-up warning indicator, the mast, winches, hydraulic lines, electrical contacts, fire extinguisher, etc. All drilling equipment must be in good condition with no oil or other fluid leaks. Any drill rig or equipment that does not pass the initial safety and cleanliness inspection by Tetra Tech will not be allowed to operate at the Site, and the mobilization cost will not be chargeable.

The Subcontractor shall provide new, 55-gallon, open-head, steel drums (ORNL UN Packaging

Specification 1A2 [former DOT 17H]) to containerize solids and liquids that will be generated during drilling and decontamination procedures.

The Subcontractor shall keep the work site and adjacent areas as free of material, debris, and rubbish as is practicable and shall remove from any portion of the site such materials, which in the opinion of Tetra

Tech, may interfere with the work or constitute a nuisance to on-site personnel. All rubbish or debris shall be removed from each drilling location at the completion of each boring.

All activities shall be conducted in an efficient and professional manner, with the minimum practical damage to the site environment.

The Subcontractor shall be responsible for the security of their equipment and materials throughout the duration of the project.

The Subcontractor is responsible for site restoration to pre-existing conditions. Demobilization tasks include the removal of the Subcontractor’s equipment and any unused materials.

2.4 SITE ACCESS AND PREPARATION

The drilling and sampling locations are in asphalt or concrete areas. All locations will be marked by Tetra

Tech prior to the Subcontractor’s mobilization to the Site. If any proposed drilling or sampling location is determined to be inaccessible then the Tetra Tech Site Representative, in consultation with the Tetra Tech

Project Manager, will select an alternative location. The gate at the northern property boundary will be removed and replaced by the property owner to allow site access.

2.5 TEMPORARY EROSION AND SEDIMENTATION CONTROL

The Subcontractor shall provide all materials and promptly take all actions necessary to achieve effective local erosion control during drilling operations in accordance with all applicable federal, state, and local enforcing agency guidelines, and this specification. No soils or runoff shall be allowed to leave the work areas.

-6-

2.8 MONITORING WELL DRILLING TECHNIQUES

The Subcontractor will use a DPT 77 or 80 series drill rig or similar type drill rig to drill and construct 2 shallow water table wells to approximately 17 feet bls and 1 deep well to approximately 35 feet bls. All drilling fluids discharged from the borehole shall be containerized by the Subcontractor and prevented from coming into contact with the ground surface.

2.9 DRILLING FLUIDS

The only drilling fluids permitted for use while advancing borings and well development is potable water.

Subcontractor should assume that potable water is not available at the site.

The Subcontractor will not add any petroleum-based lubricants to the air or directly to the drill rods at any time during the drilling.

The use of mud in drilling operations requires approval by the Tetra Tech Site Representative prior to use.

Mud will be a mixture of bentonite and potable water. No other additives may be used in the mud.

Drilling fluid levels will be maintained at the top of the casing when drilling below the water table. This includes when drilling tools (i.e. drill rods) are being removed from the casing. Drilling fluids will be re-circulated and changed at the discretion of the Tetra Tech Site Representative. Drilling fluids will be containerized as directed by the Tetra Tech Site Representative at the completion of each hole.

The Subcontractor will provide all potable water for drilling and related decontamination activities and will provide sufficient quantities of potable water so as not to impede drilling progress.

2.10 MONITORING WELL INSTALLATION

The Subcontractor will use a DPT 77 or 80 series drill rig or similar type drill rig to install and construct 4 shallow water table monitoring wells to a total depth of approximately 20 feet bls (total linear footage estimated at 80 feet).

The shallow monitoring wells will be constructed of nominal 1.5-inch diameter, schedule-40 PVC with 10 feet of 0.01-inch slotted screen and PVC end-cap or well point at the bottom of each well. The deep monitoring well will be constructed of nominal 1.5-inch diameter, schedule-40 PVC with 5 feet of 0.01-inch slotted screen and PVC end-cap or well point at the bottom of each well.

The outside annular space of each well screen and adjacent formation sands will be filled with 30/45 silica sand to 2 feet above the well screen. The deep monitoring wells will have a bentonite seal, a minimum 1 foot, placed above the sand pack.

Each monitoring well will be properly grouted above the sand pack or bentonite seal using neat Type II

Portland cement. A tremie pipe will be used to install filter packs and grout. The Tetra Tech Site representative will determine well depth and screen setting in the field for each well.

Backfill will be constantly monitored by the Subcontractor and the Tetra Tech Site Representative during the well installation process by means of a weighted steel or plastic tape. The drill casing will be removed from the borehole in increments as backfilling progresses so as not to cause caving of the borehole walls on top of well materials.

Each monitoring well will be completed as a flush mount well with and 8-inch diameter, bolt-down well vault.

The well vaults will be emplaced in 6-inch thick, 2-feet by 2-feet flush mount high strength concrete pad so

-7-that the edges are flush to the ground surface. Water-tight locking well caps will be provided by

Subcontractor for each monitoring well. Tetra Tech will provide a lock for each monitoring wells which will be keyed alike.

2.12 WELL DEVELOPMENT

Upon completion and allowing sufficient time for the grout to cure (minimum 24 hours), each shallow and deep monitoring well will be developed by over pumping with a peristaltic pump until it produces relatively sediment free water as determined by the Tetra Tech’s Site Representative. Sequential measurements of field parameters including pH, specific conductance, turbidity and temperature will be taken during development to yield information (stabilized values) regarding whether sufficient development has been performed. The duration of well development will be determined by a Tetra Tech On-Site Representative based on field measurements. Development water will be contained and managed on-site by the

Subcontractor as directed by the Tetra Tech Site Representative.

-8-

3.0 OTHER REQUIREMENTS

This section presents other requirements necessary to complete the work described in this document.

These requirements include “Site Access and Security Clearance”, “Permits and Clearances”, “Decontamination”, “Waste Containerization”, “Materials/Supplies”, “Equipment”, “Health and Safety”, and

“Documentation”.

3.1 PERMITS

The Subcontractor shall be responsible for acquiring all applicable permits for work under this Subcontract.

The Subcontractor shall make his own inquiries regarding the use of municipal, state and federal highways, roads, streets, and bridges. Subcontractor should assume that potable water is not available at the site.

3.2 DECONTAMINATION AND WASTE HANDLING

This section describes the requirements for decontamination and waste handling.

3.2.1 DECONTAMINATION PAD CONSTRUCTION

The Subcontractor shall erect and maintain a temporary decontamination pad, adequate to decontaminate the drilling rig, drilling/sampling equipment, and contain fluids/wastes generated. The pad shall be double-lined with 4-mil thick polyethylene sheeting (minimum) and will be constructed to slope in one direction, with a dedicated collection pump installed at the lower end of the pad.

A centralized location for decontamination pad shall be designated in the work area, subject to Tetra Tech approval. Spill supplies and materials shall be provided by the Subcontractor and be staged adjacent to the decontamination pad. In addition, a fire extinguisher should be stationed at the decontamination pad.

3.2.2 EQUIPMENT DECONTAMINATION

All down-hole drilling, sampling, and testing equipment shall be free of paint or any petroleum-based greases/lubricants prior to use during drilling. The drilling rig shall be high-pressure steam cleaned on Site prior to the start of drilling, any time the drill rig leaves the project site, at the direction of the Tetra Tech Site

Representative, and at the conclusion of the drilling program. All down-hole equipment shall be high-pressure steam cleaned on site prior to initial use, between locations, and at the conclusion of the drilling program. Down-hole equipment includes all rods and bits, if applicable.

Small non-disposable equipment may also be decontaminated using the following procedure if steam-cleaning is not practical: scrub equipment with a brush in a detergent (Liquinox/Alconox) solution, remove soil particles with a potable water wash, followed by a potable water rinse, liberally rinse with deionizer ultra-filtered water, sparingly rinse with isopropanol, and final rinse with copious amounts of deionizer ultra-filtered water. Decontamination must take place between borings at a location specified by Tetra Tech.

After the decontamination steps have been completed, the samplers shall be allowed to drain and air dry on clean polyethylene sheeting at a location not affected by exhaust fumes from vehicles or generators.

The equipment shall be wrapped in aluminum foil for transport, if not being used immediately.

Subcontractor should assume that potable water is not available at the site.

-9-

3.2.3 PPE DECOMTAMINATION

The Subcontractor shall decontaminate all used non-disposable PPE at the end of each working day prior to disposal. The decontamination process shall be: scrub PPE with a detergent Liquinox/Alconox solution using a brush, and remove any soil particles with a potable water wash followed by a potable water rinse.

PPE decontamination shall take place at the decontamination pad described in Section 3.3.1.

3.2.4 WASTE HANDLING

Waste materials that will be generated during the field investigation may include drill cuttings, decontamination fluids, and used PPE. Investigation-derived waste will be containerized in drums. Tetra

Tech will be responsible for removing and disposing of all IDW materials. The Subcontractor shall provide five 55-gallon, open top, steel drums (ORNL UN Packaging Specification 1A2 [former DOT 17H]) for use during drilling. The Subcontractor shall containerize, secure, and temporarily stage all wastes in appropriate containers at the Site and then transport the containers to the designated IDW storage area located off site. PPE shall be discarded in doubly-lined trash bags and removed from the Site at the end of the day, unless directed by the Tetra Tech Site Representative.

3.3 EQUIPMENT

The Subcontractor shall provide one DPT 77 or 80 series drill rig or similar type drill rig suitable for the soil borings and for monitoring well installation activities. The Subcontractor shall also provide necessary ancillary equipment to complete the work identified in this specification (including but not limited to a steam-cleaner and drum moving tools), except where noted. The Subcontractor shall furnish a sufficient quantity of down-hole drilling equipment so as not to impede progress because of the need for frequent equipment decontamination breaks. All equipment provided by the Subcontractor shall be in good working order and maintained in accordance with the manufacturer’s directions, as appropriate.

3.4 MATERIALS/SUPPLIES

The Subcontractor shall provide all materials and supplies necessary to perform the work identified herein including but not limited to polyethylene sheeting, disposable personal protective clothing and gloves, liquinox/alconox, and other necessary decontamination equipment such as brushes and tubs.

3.5 RESTORATION

The Subcontractor is responsible for repairing any damage to monitoring wells or other features caused by their activities on Site.

All high strength concrete will be replaced with like material of similar strength at the site where applicable as directed by the Tetra Tech Site Representative.

3.6 HEALTH AND SAFETY

An overview of the Health and Safety requirements is presented below. This section describes some of the requirements of the Health and Safety plan, including but not limited to: “Personal Protection”, “Site

Orientation”, and “Training and Medical Requirements”. All field activities shall be conducted in accordance with the site-specific Health and Safety Plan (HASP). Specifically, the recommended control measures, personal protective equipment requirements, and decontamination procedures identified on Safe Work

-10-permits for drilling and decontamination of sampling and heavy equipment shall be followed. As previously indicated, the potential hazards at Site 44 include chlorinated solvents.

3.6.1 PERSONAL PROTECTION

The Subcontractor shall provide all personal protection equipment and supplies for the drilling crews for

OSHA Level D.

Tetra Tech will provide monitoring, management, and oversight for overall health and safety activities as specified in the HASP. These responsibilities include providing authorization for all persons to enter and/or work at the Site, establishing minimum levels of protection for operating personnel, conducting site-specific health and safety environmental monitoring, and specifying decontamination procedures.

3.6.2 SITE ORIENTATION

Prior to beginning any work on each Site, all Subcontractor personnel to be assigned to work at the Site must attend a one-time, site-specific Tetra Tech health and safety orientation. The health and safety orientation will be held at the Site on the first scheduled day of each mobilization for field activity. This meeting will take approximately 30 minutes. Subcontractor personnel who do not attend this meeting will not be permitted to work in the investigation areas. If the Subcontractor anticipates that personnel will be substituted over the course of the work, these substitutes must attend the one-time meeting. If additional health and safety orientations are given by Tetra Tech due to actions of the Subcontractor, the cost of the additional training may be deducted from payments to the Subcontractor.

3.6.3 TRAINING AND MEDICAL REQUIREMENTS

Subcontractor personnel are required to have completed the standard 40-hour Health and Safety Training per 29 CFR 1910.120, as well as the annual 8-hour refresher course. All Subcontractor personnel are required to obtain medical approval to work at hazardous waste sites and wear respiratory protection, as well as document their participation in a medical monitoring program. Copies of training certification and medical monitoring documentation shall be provided to Tetra Tech within five (5) business days from

Subcontract award.

3.7 DOCUMENTATION

On a daily basis, the Subcontractor shall prepare and deliver to the Tetra Tech Site Representative a signed summary of activities. This report shall include itemized billable charges as set forth in the Pricing Schedule.

Tetra Tech will provide the forms.

3.8 SCHEDULE

Tetra Tech will notify the selected subcontractor for scheduling after award. Tetra Tech anticipates drilling and monitoring well installation activities will last approximately 2 days. The work is anticipated to commence in October 2017.

-11-

FIGURES

³

1,000 1,0000 Feet

CONTRACT NUMBER

APPROVED BY

APPROVED BY

DATE

DATE

FIGURE NO. REV

Site Location Map Avalon Inn Property

443 4th Avenue North to 453 4th Avenue North St. Petersburg, Pinellas County, FL

112IC08020

DATE

AS NOTED

SCALE

DATECHECKED BY

DRAWN BY

J.MADDEN 09/08/16

F.LESESNE 09/08/16

DATEREVISED BY

LEGEND

JAX: C:\GIS\Petro Sites\Avalon Inn\Figure_1_Site_Location.mxd

Site Boundary

Quad Name: Saint Petersburg

Pinellas County Florida

Site Location

4th Ave N

Brick Alley

³

50 500 Feet

CONTRACT NUMBER

APPROVED BY

APPROVED BY

DATE

DATE

FIGURE NO. REV

Site Map Avalon Inn Property

443 4th Avenue North to 453 4th Avenue North St. Petersburg, Pinellas County, FL

112IC08020

DATE

AS NOTED

SCALE

DATECHECKED BY

DRAWN BY

J.MADDEN 09/13/16

F.LESESNE 09/13/16

DATEREVISED BY

LEGEND

JAX: C:\GIS\Petro Sites\Avalon Inn\Figure_2_Site_Map.mxd

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Proposed Shallow Well Location Proposed Deep Well Location

MW5

MW6

MW7

ATTACHMENT 1

PRICE SCHEDULE

PRICE SCHEDULE

DIRECT PUSH TECHNOLOGY SERVICES

AVALON INN PROPERTY

ST. PETERSBURG, FLORIDA

September 2017

Task Item Est.

Quantity

Unit Unit Cost Extended Cost

Mobilization / Demobilization 1 Lump sum $ $

Daily Rate for DPT Rig and 2 Man

Crew & Expendables 2 Per Day $ $

Material…