ATTACHMENT 12 - Soil Management and Dust Control Plan.pdf

SOIL MANAGEMENT AND DUST CONTROL PLAN

MIAMI VA HEALTHCARE SYSTEM

Project #546-22-110

Bruce W. Carter Department of Veterans Affairs Medical Center 1201 NW 16th Street, Miami, Florida, 33125-1624

Tierra Group Project No. 18738

Prepared for:

Miami-Dade Department of Regulatory and Economic Resources Pollution Remediation Section

701 NW 1st Court, 4th Floor Miami, FL 33136-3912

On behalf of:

Miami VA Healthcare System 1201 Northwest 16th Street

Miami, FL 33125-1624

Prepared by:

Tierra Group 1230 SW 6th Street

Pompano Beach, Florida 33069

June 30, 2024

PROFESSIONAL CERTIFICATION

Project: Soil Management and Dust Control Plan Miami VA Healthcare System, Project #546-22-110 Bruce W. Carter Department of Veterans Affairs Medical Center 1201 NW 16th Street, Miami, Florida

Reviewed & Approved by:

Michael Rothenburg, P.E, C.I.H.

Certificate Number 11876 CP

Tierra Group 18738

Soil Management and Dust Control Plan Page 1

TABLE OF CONTENTS

I. INTRODUCTION 2

II. BACKGROUND 2

III. SCOPE OF WORK 2

IV. SOIL MANAGEMENT 3

A. EXPLORATORY TRENCHING/SOFT DIGGING 3

B. SOIL DISTURBING ACTIVITIES 3

C. STOCKPILE INSPECTION 4

D. STOCKPILE TESTING 4

E. OFF-SITE DISPOSAL 4

F. SOIL TRACKING 4

V. DUST CONTROL 5

VI. AIR MONITORING 5

LIST OF APPENDICES

Appendix A Project Construction Plans

Appendix B Selected pages of Site Assessment Report Addendum No. 4 (May 19, 2021) and Miami-

Dade County comments (May 28, 2021)

Appendix C Soil Reuse Guidance for Miami-Dade County (March 22, 2004)

Appendix D DustTrak II Aerosol Monitor Specifications

Soil Management and Dust Control Plan Page 2

I. INTRODUCTION

On behalf of the Miami VA Healthcare System (Miami VA), Tierra Group (Tierra) presents this

Soil Management and Dust Control Plan to support Miami VA Project #546-22-110 at the Bruce

W. Carter Department of Veterans Affairs Medical Center, 1201 NW 16th Street, Miami, Florida, which is located in the vicinity of contaminated site UT-2694 in Miami-Dade County, Florida.

The project location is shown in Appendix A.

The purpose of this document is to provide a plan for addressing potential hazards associated with possible exposure to contaminants of concern (COCs) during construction activities. This document may also serve as a supplement to other plans submitted to Miami-Dade County

Department of Regulatory and Economic Resources (RER), Division of Environmental

Resources Management (DERM), Pollution Remediation Section (PRS).

II. BACKGROUND

Veterans Affairs (VA) Medical Center (MDC ID# UT-2694/FDEP ID# 138628963), located in the vicinity of 1201 NW 16th Street. The subject property is a hospital and medical center operated by the Miami Veterans Affairs Healthcare System.

In March 2018, two leaded gasoline Underground Storage Tanks (USTs) were discovered abandoned-in-place during demolition of Incinerator Building No. 5. File review indicated that the storage tank registration was updated and a new application for removal was submitted to

Florida Department of Environmental Protection (FDEP) for approval. In May and June 2018, the storage tanks were removed and a Tank Closure Assessment Report (TCAR) was submitted in July 2018. Site assessment beginning in March 2019 identified elevated arsenic concentrations in soil and the potential for arsenic, chromium, Volatile Organic Hydrocarbons (VOHs), and FL

Method PRO (FL-PRO) compounds contamination in groundwater. DERM approved a quarterly groundwater monitoring plan (GWMP) and source removal of arsenic-impacted soils in May

2021. DERM approved a revised groundwater sampling plan in June 2024. Select pages of the referenced documents are provided in Appendix C.

III. SCOPE OF WORK

Miami VA intends to construct a boiler building extension in the former UST/former incinerator area, as shown on the Site Plan included in Appendix A.

All work areas associated with the proposed construction, including staging areas, will be located within the Miami VA property. Surplus soils will be consolidated with skid-steer equipment and directly loaded into dump trucks for transport to an appropriate landfill that will accept such soils. Approximately twenty (20) cubic yards of soil will be removed during project construction.

The site soil is known to contain arsenic at levels that exceed the commercial direct exposure soil cleanup target level (SCTL) at some locations. All site soil will be handled assuming arsenic contamination. Soil to be disposed will be tested for total arsenic by EPA method 6010 or 6020 and, if greater than 100 milligrams per kilogram (mg/kg), for arsenic by Toxicity Characteristic

Leaching Procedure (TCLP).

Before construction activities are initiated, erosion and sediment controls (i.e., silt fences) will be properly installed to encompass the project area to prevent, to the greatest extent possible, any

Soil Management and Dust Control Plan Page 3 potential sediment release or turbidity outside the work area caused by ground disturbance. If any areas of bare soil are left following completion of the work activities, these areas will be properly stabilized (i.e., re-seeding, sodding, etc.) prior to the removal of the erosion and sediment controls. The expected duration of the construction project is seven hundred thirty

(730) days though the excavated area will only be exposed for several weeks. The designated

On-site Health and Safety Representative will be present during removal and handling of impacted soil.

No dewatering is planned to occur.

IV. SOIL MANAGEMENT

The following soil management procedures will be used to guide on-site activities in which soils may be disturbed during the installation and replacement of infrastructure. The Best

Management Practices (BMPs) that will be implemented for the above-referenced soil handling activities are presented below.

A. Exploratory Trenching/Soft Digging

Subsurface exploration will take place prior to construction during subsurface utility locating work utilizing vacuum equipment. All soils removed at this time will be stockpiled on and covered by 6 mil polyethylene sheeting.

B. Soil Disturbing Activities

Anticipated soil disturbing activities are limited to the excavation, stockpiling, and removal or replacement of soils during construction work. Soil will be stockpiled at designated staging areas and the following BMPs will apply when soils are disturbed:

• Qualified technicians will operate mechanical excavators, solid flight augers, cranes, and skid-steers.

• The anticipated volume of soil to be generated from all excavations is approximately twenty (20) cubic yards.

• Soil stockpiling activities will be conducted on 6 mil polyethylene sheeting.

• Prior to soil disturbing activities, the construction contractor will prepare a staging area for a dump truck (as needed) for proper loading of excavated materials requiring transport to a licensed landfill facility.

• Soil stockpiles will be lightly sprayed with water to minimize dust, as necessary. To the extent practical, surplus soil from each excavation will be covered with polyethylene sheeting to deter stormwater runoff.

• During the wet season, surplus soil will also be surrounded by hay bales and/or silt traps to minimize the potential for sediment runoff.

Imported clean fill will be utilized as backfill, as needed. The clean fill will be sourced directly from a certified quarry and/or alternate provider meeting the PRS Soil Reuse Guidance for

Miami-Dade County, included in Appendix C.

Soil Management and Dust Control Plan Page 4

C. Stockpile Inspection

Soil must be visually inspected before re-use. Inspections will occur during stockpiling and include verification of the perimeter of each stockpile. If the inspector observes any Construction

& Demolition (C&D) debris, such as rubble with protruding steel, sheet metal, pieces of broken concrete, glass, wood, or plastic, the affected soil will either be mechanically screened to remove the items or disposed off-site following waste characterization, and the landfill will be selected based upon these results to ensure it is disposed at a properly licensed facility.

If evidence of hazardous substances or petroleum products, such as drums, 5-gallon buckets, chemical odors, staining, or discoloration is observed, verification sampling will be conducted as specified in the following section.

D. Stockpile Testing

Stockpiled soil planned for re-use as backfill will be sampled in accordance with the “Soil Reuse

Guidance for Miami-Dade County”, dated January 2024. Samples shall be collected from the stockpiled soil in accordance with FDEP Standard Operating Procedure (SOP) FS-3000, as provided by Chapter 62-160, Florida Administrative Code (F.A.C.), and analyzed at a National

Environmental Laboratory Accreditation Program (NELAP) state-accredited environmental laboratory for the following analyses:

• SVOCs (full list) by EPA Method 8270

• Arsenic by EPA Method 6010 or 6020

• TCLP arsenic if result is in excess of 100 mg/kg

• Other parameters, as required, for the disposal characterization

The number of composite soil samples will be in accordance with the following table from Soil

Reuse Guidance for Miami-Dade County:

Volume of Soil (yd3) Weight of Soil (tons)

Number of Discrete

Samples for Volatile

Organic Compounds

Number of Composite

Samples for Non-Volatile

Organic Compounds

< 200 < 280 1 1

200 to < 1,000 280 to < 1,400 3 3

1,000 to < 2,000 1,400 to < 2,800 5 5

Each additional 1,000 yd3 Each additional 1,400 tons 1 1

E. Off-Site Disposal

In the event that soils exceed the FDEP soil cleanup target levels (SCTLs) or leachability CTL criteria and/or is not tested for leachability/SPLP, off-site disposal will be required and limited to facilities licensed to accept the contaminants of concern (COCs). Soil blending shall not be allowed. Prior to transportation, soils will be stockpiled on-site and characterized for the COCs as specified by the disposal facility. Waste disposal manifests will be provided to DERM at the completion of the project.

F. Soil Tracking

The construction contractor will document contaminated soil handling activities and final disposition of contaminated soil in a daily log that will track the number of truck loads removed

Soil Management and Dust Control Plan Page 5 for proper disposal and the number of truck loads imported as fill. This documentation will be provided to DERM upon request.

V. DUST CONTROL

The construction contractor shall implement the following dust suppression practices when conducting site operations likely to generate dust:

• Use of Solid Flight Augers - Such augers will reduce dust production.

• Wet Suppression - Water will be applied to active work areas, staged material, and/or other areas based on observations by on-site personnel. A water truck will supply the water required for wet suppression. Water for dust suppression will be obtained on-site or from a municipal source designated by the utility.

• Speed Zone - Vehicles will be required to travel at low speeds (< 20 mph) on the site to minimize dust generation.

• Work Area Access - Access will be limited only to vehicles and equipment required for the work being conducted.

• Visible Dust Suppression - Employees will be notified to avoid areas where airborne dust is generated and, if dust is visible, increase dust suppression measures (primarily wetting).

• Stockpile Management - Cover and secure with polyethylene sheeting above and below stockpiled soil.

• Waste Transportation - In the event that off-site disposal of soil is required, dump trucks will be covered prior to leaving the loading area.

VI. AIR MONITORING

Real-time dust monitoring shall be implemented by using dedicated staff for real-time roving hand-held dust monitoring during any soil disturbing activities during excavation or construction at each site. Roving dust monitoring locations shall be determined in the field based on site conditions and receptors present at each location at each work zone. The roving dust readings shall be obtained throughout the entire course of the workday and shall be obtained every 5 minutes. Any exceedances after the 5-minute continuous reading in excess of 0.15 mg/m3 shall require work to stop until corrective actions to reduce dust are satisfactorily implemented.

A DustTrak™ II Aerosol Monitor 8530 (DustTrak), or equivalent field meter, will be utilized to monitor the presence of Total Dust (PNOS) and Respirable Dust (PM10). The DustTrak specification data is included as Appendix D.

A daily log of monitoring data will be maintained on-site and provided to DERM upon request.

Appendix A

Project: 546-22-110 Objective: To construct a new boiler and control in the old incinerator area.

PROJECT AREAPROJECT AREA

Project: 546-22-110 Objective: To construct a new boiler and control in the old incinerator area.

PROJECT AREAPROJECT AREA

Appendix B

5/21/21

May 28, 2021

VIA ELECTRONIC MAIL: kalautie.jangdhari@va.gov

PAPER COPY WILL NOT FOLLOW BY REGULAR MAIL

Ms. Kalautie S. JangDhari, Medical Center Director United States Department of Veterans Affairs 1201 NW 16th Street Miami, FL 33125

RE: Site Assessment Report Addendum (SARA) in Support of a No Further Action with Conditions (NFAC) closure dated May 19, 2021 submitted by Global Environmental Services, Inc. (GES) for the Notice of Violation dated August 15, 2018 for the Veterans Affairs (VA) Medical Center facility (UT-2694/File-751) located at, near, or in the vicinity of 1201 NW 16th St, Miami, Miami-Dade County, Florida.

Dear Ms. JangDhari:

The Department of Regulatory and Economic Resources-Division of Environmental Resources Management (DERM) has reviewed the referenced document, received May 21, 2021. Please note the following:

1. DERM acknowledges GES’s recommendation for quarterly groundwater monitoring for arsenic, TRPH, and VOHs for a minimum of four (4) quarters at monitoring wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, and MW-8, and hereby approves the Groundwater Monitoring Plan (GWMP). The first sampling event shall be performed within 60 days of receipt of this GWMP Approval Order. Water level measurements shall be made immediately prior to each sampling event. The analytical results (laboratory report), chain of custody, cumulative summary table of the analytical results, site map(s) illustrating the most recent analytical results, and the water level elevation information (cumulative summary table and most recent flow interpretation map), shall be submitted to DERM within 60 days of sample collection.

You are required to complete the monitoring program outlined below:

Monitoring Wells Parameters Frequency MW-1, 2, 3 ,4, 5, 6, 7, 8 Arsenic, TRPH, VOH Quarterly

2. DERM acknowledges GES’s statement regarding VA personnel providing “final delineation of the proposed conditional closure boundary area at the loading dock area”. Therefore, please provide a figure depicting the proposed engineering control boundaries in reference to the soil sample locations and results. Depending on the information provided, additional assessment may be required. Be advised that future submittals of site figures shall include all previous and existing soil borings and monitoring wells associated with the site, including soil borings SB-1, SB-2, and SB-3.

3. DERM does not object to the proposed source removal of arsenic-impacted soil to a minimum 2-foot depth in the open ground grassy area to the northwest of the loading dock area in pursuit if the elected No Further Action with Conditions (NFAC). Note that this area shall be encompassed within the proposed engineering control area.

Provide the manifests for the disposal of soil generated during the source removal activities along with the delivery receipts indicating the source of the proposed clean fill material to be used to backfill the excavations. Note that mailto:kalautie.jangdhari@va.gov

Ms. JangDhari United States Department of Veterans Affairs UT-2694/File-751 fill material that is not brought directly from an approved Miami-Dade County quarry and that is not appropriately characterized will require proper characterization before being used for backfilling at the subject site.

Therefore, within sixty (60) days of source removal completion, you are hereby required to submit to DERM for review a Source Removal Report (SRR) prepared in accordance with 24-44(2)(j)(iii) Code of Miami-Dade County. Within ninety

(90) days of receipt of this letter, the first Groundwater Monitoring Report (GWMR) shall be submitted, along with $430 ($400 review fee and $30 RER surcharge). Technical Reports (assessment, remediation, etc.) should be submitted via email to DERMPCD@miamidade.gov and/or Sandra.Rezola@miamidade.gov. For files too large for electronic transmittal, the public is requested to utilize Drop-Box or other equivalent FTP link.

Be advised that the vertical and horizontal extent of the contaminant plume(s) shall be fully delineated. DERM has the option to split any samples deemed necessary with the consultant or laboratory at the subject site. The consultant collecting the samples shall perform field sampling work in accordance with the Standard Operating Procedures provided in Chapter 62-160, FAC, as amended. The laboratory analyzing the samples shall perform laboratory analyses pursuant to the National Environmental Laboratory Accreditation Program (NELAP) certification requirements. If the data submitted exhibits a substantial variance from DERM split sample analysis, a complete resampling using two independent certified laboratories will be required.

Be advised that any portion of the site to be sold, transferred or dedicated (including for public right-of-way) shall be identified, and the receiving entity must be made aware of the contamination and accept any conveyance. If soil contamination, groundwater contamination, solid waste and/or methane will be addressed via a NFAC, each individual property owner will have to execute a restrictive covenant and each receiving entity must accept all applicable restrictions and responsibilities that are required following transfer of ownership. Please note that nothing stated herein may be interpreted to limit or restrict an engineer’s or other professional’s responsibility to prepare plans accurately and completely for proposed rights-of-way as well as any other projects or plans. For proposed dedications, any soil, groundwater or surface water contaminants or solid waste and/or methane must be disclosed to the receiving County or Municipality applicable department at the earliest stage possible; the presence of any such contamination and/or solid waste and/or methane impacts or a delay in disclosure of such contamination or impacts could result in the County declining to accept the proposed dedication, the need for the developer to reconfigure or change previously approved site plans, or other changes to the proposed development.

DERM shall be notified in writing a minimum of three (3) working days prior to the implementation of any sampling or field activities. Email notifications shall be directed to DERMPCD@miamidade.gov. Please include the DERM file number on all correspondence.

Failure to adhere to the items and timeframes stipulated above may result in enforcement action for this site.

Any person aggrieved by any action or decision of the DERM Director may appeal said action or decision to the Environmental Quality Control Board (EQCB) by filing a written notice of appeal along with submittal of the applicable fee, to the Code Coordination and Public Hearings Section of DERM within fifteen (15) days of the date of the action or decision by DERM.

mailto:DERMPCD@miamidade.gov mailto:Sandra.Rezola@miamidade.gov mailto:DERMPCD@miamidade.gov

Ms. JangDhari United States Department of Veterans Affairs UT-2694/File-751

If you have any questions concerning the above, please contact Adolfo Calero of the Environmental Monitoring and Evaluation Section at Adolfo.Calero@miamidade.gov or (305) 372-6700.

Sincerely, Wilbur Mayorga, P.E., Chief Environmental Monitoring & Restoration Division rg ec: Christopher Perry, P.G., GES, chrisperry526@gmail.com

R. Scott Taylor, AST Florida Environmental, Inc., rpcvtaylor@gmail.com Odniel Carlo, Miami VA, Odniel.Carlo@va.gov Augusto Emilio Torres, Miami VA, Augusto.Torres@va.gov Matthew D. King, Miami VA, Matthew.King6@va.gov Clifford Hamil, VA, Clifford.Hamil@va.gov Kalautie S. JangDhari, Miami VA, Kalautie.Jangdhari@va.gov mailto:Adolfo.Calero@miamidade.gov mailto:chrisperry526@gmail.com mailto:rpcvtaylor@gmail.com mailto:Odniel.Carlo@va.gov mailto:Augusto.Torres@va.gov mailto:Matthew.King6@va.gov mailto:Clifford.Hamil@va.gov mailto:Kalautie.Jangdhari@va.gov

Appendix C

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004- and March 2023 “SOIL

REUSE GUIDANCE FOR MIAMI-DADE COUNTY”

SOIL REUSE GUIDANCE FOR MIAMI-DADE COUNTY

This guidance document provides general guidelines for obtaining soil classification letters from Miami-Dade County DERM for the purpose of evaluating reuse options.

Applicability

DERM encourages the repurposing of material for beneficial reuse while ensuring that said material is reused in a manner that is protective of human health and the environment. This guidance is applicable to entities or individuals requesting a soil classification determination from DERM to facilitate the beneficial reuse of soils within Miami-Dade County. The guidance is consistent with the provisions of the Miami-Dade County Code (the Code) and is intended to ensure that soils proposed for reuse on or off the property at which they are generated are reused in a manner that will be protective of the end users at the reuse location and will not create ground or water pollution. Please note that the guidance is not intended to address the onsite relocation of soils during normal landscaping and maintenance activities at single family residences nor the relocation of soils generated and reused under impervious surface within the same project corridor in the case of a roadway construction project except if said soils are documented to be contaminated, or display visible, olfactory, or other evidence of contamination. The guidelines detailed herein are applicable to vadose zone soil, as well as soils obtained from below the water table, which are proposed to be beneficially reused.

Please note that the soil reuse guidance does not supersede the provisions of a Contaminated Soil Management Plan approved pursuant to site rehabilitation activities at a contaminated site undergoing cleanup pursuant to Chapter 24 of the Code or pursuant to Chapter 62-780, Florida Administrative Code (FAC).

Soil-like material generated by the sieving/screening of solid waste (i.e., recovered screened material (RSM) as defined in Chapter 62-701, FAC and screened solid waste (SSW)), are considered solid waste except when defined as recovered materials pursuant to Chapter 62- 701, FAC and intended for beneficial reuse. RSM and SSW are also subject to this guidance, with the exception that RSM generated at a permitted C&D facility is subject to the Florida Department of Environmental Protection’s (FDEP) - Guidelines for the Management of Recovered Screen Material from C&D Debris Recycling Facilities in Florida - dated April 2011.

Soil Classification Letters

DERM will issue soil classification letters upon request. A request for a soil classification letter shall include the following information:

DERM Guidance No. 7H

SOIL REUSE GUIDANCE

Revised January 2024 RER-DERM Environmental Monitoring and

Restoration Division

DERM Soil Reuse Guidance January 2024

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

“SOIL REUSE GUIDANCE FOR MIAMI-DADE COUNTY”

1. The location at which the soil is generated, including information such as the site address, folio number and any DERM, FDEP, EPA permit numbers (as applicable). If different from the generating location, the above information shall also be submitted for the location at which the material is being stored.

2. Information regarding potential recognized environmental concerns present at the generating location and source location (if applicable) based on the current land use, historical land uses, site, discharge, and release history, etc. The information shall be supported by a Phase I Environmental Site Assessment conducted in accordance with the American Society for Testing and Material (ASTM International) Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process (ASTM E1527-21, as may be amended from time to time) or, alternatively, a comparable report.

Said information shall provide, at a minimum, the following:

i. A site description.

ii. A detailed description of historical and current land use, history of past and present site operations including processes that involve the storage, treatment, use, disposal, processing, or manufacturing of materials that may be potential contaminant sources.

iii. A summary of known spills or releases of materials, including permitted releases and legally applied products, that may be potential contaminant sources.

iv. Information regarding current or previous site rehabilitation activities.

Please note that compiling the information above will involve inspection of public records (e.g., files located at DERM, Department of Health, FDEP, etc.), the performance of field reconnaissance, and a review of information such as historical land use records, Sanborn maps, and aerial photographs.

3. A soil characterization report which shall include, at a minimum, the information required below.

NOTE: For the purposes of soil characterization, the applicant shall submit a site-specific sampling plan to DERM-EMRD for review and approval prior to implementation:

i. The volume of soil (in cubic yards) for which a reuse classification is being sought.

ii. A sampling frequency based on Table 1.

iii. The rationale for determining appropriate and applicable sampling parameters/contaminants of concern (COCs). Determination of the appropriate COC shall account for observations made at the time of the soil removal (e.g., petroleum odor, solid waste debris, etc.) and professional judgement in addition to the site-specific information regarding potential sources of contamination based on the site history (see comment 2 above).

iv. A scaled site map which indicates the locations (include the GPS coordinates) and proposed depth of sampling.

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

v. A detailed description of the sampling methodology. Note that the sampling methodology shall assure that the samples are representative of the entire vertical and horizontal extent of the volume of soils proposed for reuse.

vi. A summary table of the analytical results.

Table 1: Sampling Frequency

SAMPLING FREQUENCY

Volume of Soil (yd3)

Weight of Soil (tons)

Number of Discrete Samples for Volatile Organic Compounds

Number of Composite

Samples for Non- Volatile

Compounds

<200 <280 1 1

200 to < 1,000 <280 to 1,400 3 3

1,000 to < 2,000 1,400 to 2,800 5 5

Each additional 1,000 yd3

Each additional 1,400 tons

1 1

STOCKPILE SAMPLING

Each composite sample shall consist of a minimum of 8 subsamples obtained such that the subsamples are representative of the entire horizontal and vertical cross section of each sampling unit. The stockpile shall be divided into sample units corresponding to the number of composite samples required. Within each sampling unit, subsamples shall be collected at various depths and intervals through the vertical and horizontal plane of the material such that the final composite sample is representative of the entire sampling unit.

Sampling along the perimeter/surface of the sampling unit only is inappropriate and will not be accepted.

DERM recognizes the challenges inherent in sampling a stockpile and recommends flattening the stockpile to improve accessibility. Alternately, access to the interior of the stockpile may be facilitated via pathways created utilizing heavy machinery.

For multiple stockpiles, each stockpile shall be considered separately when determining the sampling frequency as provided above.

It is recommended to segregate the stockpiles of proposed reuse material from other fill source on the properties (e.g. imported quarry fill) and from spill/releases sources/areas.

IN-SITU COMPOSITE SAMPLING

Samples shall be collected at a frequency corresponding to the cubic yard equivalent indicated in the sampling frequency table above. As an example, 1 composite sample is required to characterize an area 100 ft x 100 ft x 0.5 ft while 3 composite samples would be required for a 100 ft x 100 ft x 2 ft area.

ISM SAMPLING

The decision unit and the number of samples shall be determined based on the ISM Guidance (https://ism-2.itrcweb.org/) and the intended reuse of the material.

Notwithstanding the above, DERM reserves the right to request additional samples if deemed necessary based on a review of the site-specific data and information.

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

vii. Laboratory analytical reports, including chain of custody forms, original laboratory records, appropriate analytical methods, laboratory quality control/quality assurance data, etc. Be advised that all analytical results (except Synthetic Precipitation Leaching Procedure (SPLP) and Toxicity Characteristic Leaching Procedure (TCLP) results shall be reported on a dry weight basis.

viii. The proposed reuse location, including addresses, folio, and intended reuse application.

Soil Re-Use Options

Based on the information provided in the soil characterization report, DERM will issue a soil determination and provide potential reuse options in accordance with the guidelines set forth below.

A. Clean Soil:

Soil is classified as clean soil if:

i. The concentration distribution of the characterization data is consistent with Miami- Dade County’s naturally occurring background concentration distribution (Appendix 1)* supported by appropriate statistical techniques (distribution comparisons, central tendency hypothesis testing, etc.); or,

ii. The concentrations of the COCs are less than the practical quantitation limits

(PQLs) in the case of COCs which are not reasonably expected to occur naturally in soils (e.g., organic chemicals) or for which a naturally occurring background concentration has not been established pursuant to item A.i above; or,

iii. The concentrations of the COCs are less than or equal to DERM-approved, site-specific natural background concentrations established using the Natural Background Guidance (Risk Based Corrective Action (RBCA) Guidance No. 7C) https://www.miamidade.gov/environment/library/instructions/risk-based-corrective-action.pdf .

NOTE

*The chemicals listed in Appendix 1 shall not be construed as representing a list of required COCs. These represent COCs for which DERM has established naturally occurring background concentrations. The applicable and appropriate COCs for the purpose of characterization shall be determined as indicated in Comment No.3.iii above.

Clean Soil may be reused, without restrictions, anywhere within Miami-Dade County.

However, for all material for which a clean fill determination has been issued, to ensure tracking and verification the entity requesting the soil reuse classification is required to notify DERM of the recipient location and volume transported to each recipient location.

Additionally, all applicable local, state, and or federal permits and approvals (e.g., DERM permit, Planning and Zoning approval, Municipal zoning, etc.) must be obtained prior to any filling operations in wetlands (e.g., dredge and fill permit) and surface waters (e.g., lakefill permit).

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

NOTE: Recovered Screen Material (RSM) or Screened Solid Waste (SSW) is solid waste and therefore notwithstanding any characterization cannot be classified as clean soil.

B. Residential Soil:

Soil is classified as residential soil if the concentrations of the COCs are less than or equal to the lower of:

i. The residential direct exposure soil cleanup target levels (CTLs), or

ii. The groundwater leachability-based soil CTLs, or

iii. The fresh surface water leachability-based soil CTLs (as applicable), or the marine surface water leachability-based soil CTLs (as applicable), specified in Table 2, Section 24-44(2 ) ( f ) of the Miami-Dade County Code (the Code).

The following RBCA options are available to further assist in evaluating soils:

• For soil with contaminant concentrations exceeding the groundwater, fresh surface water, or marine surface water leachability-based soil CTL, direct leachate testing may be performed using USEPA Method 1312, Synthetic Precipitation Leaching Procedure (SPLP). If the results of the leaching test are less than or equal to the groundwater, fresh surface water and/or marine surface water (as applicable) CTLs specified in the Code, then the leaching test results shall be utilized in lieu of the leachability-based soil CTLs.

For COCs without a default leachability-based soil CTL, a leaching test is required for any sample with a total concentration which is inconsistent with the naturally occurring background concentrations and concentration distribution provided in the DERM memo ‘Natural Background Concentrations in Miami-Dade County Soils” dated February 8, 2002 (provided for ease of reference in Appendix 1 Tables 1 and 2). Be advised, however, that the leachate test results do not supersede the residential direct exposure soil CTLs.

• Alternate soil CTLs for Total Recoverable Petroleum Hydrocarbons (TRPH) may be derived based upon the site-specific composition of TRPH (see Section 24- 44( 2 ) ( f ) ( i i i )4 of the Code, Appendix C of the Technical Report - Development of Cleanup Target Levels for Chapter 24, Miami-Dade County Code-, and RBCA Guidance No. 7D). https://www.miamidade.gov/environment/library/instructions/risk-based-corrective-action.pdf

The reuse of residential soil is subject to the following conditions:

a. Causing or allowing a nuisance is prohibited by the Code; therefore, Residential

Soil that exhibits nuisance characteristics (e.g., soil that has an offensive odor) shall not be reused.

b. Residential Soil shall not be reused within surface water bodies (e.g., lakes, canals, etc.) or ecologically sensitive areas (e.g., wetlands, etc.).

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

c. A buffer of at least 25 feet shall be maintained between any residential soil reuse location and an adjacent surface water body or ecologically sensitive areas (e.g., wetlands, etc.).

C. Verification Sampling

For soil determined to be residential soils or clean fill, and not subject to a DERM approved Soil Management Plan, DERM reserves the right to perform inspections at the generating and receiving facility to ensure compliance with the above. DERM shall be notified at least 24 hours prior to the start of transport of material to the approved recipient facility. DERM requires verification sampling (to be split with DERM staff) at the recipient location/receiving facility of any soil approved for reuse, including soils classified as clean fill. To facilitate verification sampling at the recipient facility, the locations where the reused soils are placed or stockpiled shall be included on a scaled site figure(s), including GPS coordinates, and shall be submitted to DERM along with a verification sampling plan within thirty (30) days the soils being transported to the facility. The verification sampling plan shall provide for an adequate number of samples to confirm that the quality of the material is consistent with the characterization data which was the basis for DERM’s soil classification determination.

D. Contaminated Soils

Soils with contaminant concentrations that exceed the residential direct exposure soil cleanup target levels (CTLs), the groundwater leachability-based soil CTLs, the fresh surface water leachability-based soil CTLs (as applicable), or the marine surface water leachability-based soil CTLs (as applicable) are classified as contaminated and are subject to the following:

i. On a case-by-case basis, as a part of site rehabilitation activities, contaminated soil may qualify for onsite reuse at the site at which it is generated under a department approved Contaminated Soil Management Plan. Specifically, contaminated soils may be blended with less contaminated soils (generated onsite) or with imported clean fill, to achieve the applicable SCTL(s) for onsite reuse, or contaminated soil may be reused onsite under the provisions of a conditional closure in accordance with Section 24-44(2) of the Code or Chapter 62-780, FAC.

ii. Contaminated soil that is not reused at the site at which it was generated in accordance with C.i. above shall be disposed of at a permitted Class I landfill. The landfill operator should be contacted for information regarding requirements for disposal of contaminated soils. Copies of disposal receipts or manifests identifying the transporter, the disposal location, the truck number, and volume of material disposed as well as legible copies of disposal manifest or tipping receipts (dated, on company letterhead and indicating the volume of material received) from the landfill facility shall be submitted to DERM within thirty (30) days of disposal.

iii. Offsite reuse or inappropriate disposal of contaminated soil will result in DERM enforcement action including but not limited to orders for the removal and disposal of said soils. Offsite reuse of contaminated soil shall be construed as ground pollution as defined in Section 24-5 of the Code. Contaminated soil may not be stored onsite for greater than ninety (90) days unless authorized by DERM. Contaminated soil shall be stored over an impervious surface to prevent leachate infiltration and secured in a manner that prevents

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -human exposure to contaminated soil or sediment and prevent soil or sediment exposure to precipitation that may cause surface runoff.

iv. The onsite treatment or processing (except blending) of contaminated soil may constitute soil treatment and may be subject to the provisions of Chapter 62-713, FAC.

NOTE:

Notwithstanding any of the above, DERM may consider approval and reuse, on a case-by-case basis, of material such as muck and marls with concentrations above the soil CTLs, provided DERM has determined that the material represents virgin material devoid of anthropogenic influences and these concentrations represent naturally occurring background concentration and that the use of the material will not create pollution, or will not materially increase the level of pollution on the recipient property and will not result in an unacceptable exposure risk.

General Comments

1. It is the responsibility of the generator to advise the receiver of any conditions associated with the reuse of soils and the receiver is responsible to reuse the soil in accordance with the conditions set forth in this guidance, and in any soil classification letter issued by DERM and in accordance with all applicable federal, state, and local regulations.

2. The consultant collecting the samples shall perform field sampling work in accordance with Chapter 62-160, FAC., Standard Operating Procedures (DEP-SOP-001/01) as may be amended from time to time. The laboratory analyzing the samples shall perform laboratory analyses pursuant to the National Environmental Laboratory Accreditation Program (NELAP) certification requirements.

3. All work shall follow all applicable safety requirements (e.g., OSHA, NFPA, site safety plan, etc.) and the appropriate agencies shall be notified.

4. Soil that is saturated with pure product (free phase) is not suitable for reuse or landfill disposal and may be subject to the reporting provisions set in Rule 62-780.210, FAC., and the source removal provisions set forth in Section 24-44(2)(j) of the Code or Rule

62-780.525, FAC.

5. Soil that is classified as a RCRA hazardous waste is not suitable for reuse, blending, or for disposal at any landfills or disposal facilities in Miami-Dade County. RCRA hazardous waste characterization by USEPA Test Method 1311, TCLP analyses, shall be performed when soil concentrations of the COCs exceed the Total Soil Criteria listed in Appendix 2. The TCLP results shall be compared to the TCLP Criteria provided in Appendix

2. Any soil that exceeds the TCLP Criteria or is otherwise classified as a RCRA hazardous waste (e.g., listed waste, etc.) shall be disposed of at a permitted hazardous waste treatment, storage, disposal facility in accordance with all applicable regulations.

6. Compliance with the criteria and requirements herein does not relieve generator or receiver of the soil from responsibility to comply with any other applicable local, state, or federal rules or requirements.

7. All notifications pursuant to this guidance shall be provided via email to DERMPCD@miamidade.gov.

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

APPENDIX 1

Summary Statistics – Naturally Occurring Concentration of Inorganics in Soils in

Miami-Dade County.

Chemical Name

Natural Background

Concentration (mg/kg)

Chemical Name

Natural Background

Concentration (mg/kg)

Arsenic 1.2 Lead 26 Aluminum 2656 Manganese 55

Barium 7 Mercury 0.08 Cadmium 0.1 Nickel 2.1 Chromium 6.8 Selenium* <0.45

Copper 4.1 Silver* <0.025 Iron 2176 Zinc 12

*All concentrations below the method detection limit

Dataset – Naturally Occurring Concentrations of Inorganics in Soils in Maimi-Dade County https://www.miamidade.gov/environment/library/memos/soil-study.pdf

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

APPENDIX 2

Total Soil and TCLP Criteria for Toxicity Characterization

Contaminant

CAS Number Total Soil Criteria

(mg/kg) TCLP Criteria

(mg/l) Arsenic 7440-38-2 100 5.0

Barium 7440-39-3 2,000 100.0

Benzene 71-43-2 10 0.5

Cadmium 7440-43-9 20 1.0

Carbon tetrachloride 56-23-5 10 0.5

Chlordane 57-74-9 0.6 0.03

Chlorobenzene 108-90-7 2,000 100.0

Chloroform 67-66-3 120 6.0

Chromium 7440-47-3 100 5.0

Cresol, o- 95-48-7 4,000 200.0

Cresol, m- 108-39-4 4,000 200.0

Cresol, p- 106-44-5 4,000 200.0

Cresol NA 4,000 200.0

D, 2,4- 94-75-7 200 10.0

This Guidance supersedes and replaces DERM SWP Guidance No. 1 dated March 22, 2004, and the March 2023 -

Dichlorobenzene, 1,4- 106-46-7 150 7.5

Dichloroethane, 1,2- 107-06-2 10 0.5

Dichloroethylene, 1,1- 75-35-4 14 0.7

Dinitrotoluene, 2,4- 121-14-2 2.6 0.13

Endrin 72-20-8 0.4 0.02

Heptachlor (and it’s epoxide) 76-44-8 0.16 0.008

Hexachlorobenzene 118-74-1 2.6 0.13

Hexachlorobutadiene 87-68-3 10 0.5

Hexachloroethane 67-72-1 60 3.0

Lead 7439-92-1 100 5.0

Lindane 58-89-9 8 0.4

Mercury 7439-97-6 4 0.2

Methoxychlor 72-43-5 200 10.0

Methyl ethyl ketone 78-93-3 4,000 200.0

Nitrobenzene 98-95-3 40 2.0 Pentachlorophenol 87-86-5 2,000 100.0

Pyridine 110-86-1 100 5.0

Selenium 7782-49-2 20 1.0

Silver 7440-22-4 100 5.0

Tetrachloroethylene 127-18-4 14 0.7

Toxaphene 8001-35-2 10 0.5

Trichloroethylene 79-01-6 10 0.5

Trichlorophenol, 2,4,5- 95-95-4 8,000 400.0

Trichlorophenol, 2,4,6- 88-06-2 40 2.0

TP, 2,4,5- (Silvex) 93-72-1 20 1.0

Vinyl chloride 75-01-4 4 0.2

Appendix D

TRUST. SCIENCE. INNOVATION.

DUSTTRAK™ II Aerosol Monitor Models 8530, 8531, and 8532 Desktop or Handheld Units for Any Environment, Any Application The new DUSTTRAK II Aerosol Monitors are battery-operated, data-logging, light-scattering laser photometers that give you real-time aerosol mass readings. They use a sheath air system that isolates the aerosol in the optics chamber to keep the optics clean for improved reliability and low maintenance. Suitable for clean office settings as well as harsh industrial workplaces, construction and environmental sites and other outdoor applications. DUSTTRAK II monitors measure aerosol contaminants such as dust, smoke, fumes and mists.

Applications � Industrial/occupational hygiene surveys

� Indoor air quality investigations

� Outdoor environmental monitoring

� Baseline trending and screening

� Point source monitoring

� Engineering control evaluations

� Engineering studies

� Remote monitoring

� Process monitoring

� Emissions monitoring

� Aerosol research studies

Features and Benefits � Easy to program, easy to operate

� New graphical user interface with color touch-screen

� Perform in-line gravimetric analysis for custom reference calibrations

� Automatic zeroing (with optional zero module) minimizes the effect of zero drift

� Measure aerosol concentrations corresponding to PM1, PM2.5, PM10, or Respirable size fractions

Exposure Mon i to r ing

H E A L T H A N D S A F E T Y

Easy to Program and Operate The new graphical user interface with color touch-screen puts everything at your fingertips. The easy-to-read display shows real-time mass concentration and graphical data as well as other statistical information along with instrument pump, laser and flow status, and much more. Perform quick walk-through surveys or program the instrument’s advanced logging modes for long-term sampling investigations. Program start times, total sampling times, logging intervals, alarm setpoints and many other parameters. You can even set up the instrument for continuous unattended operation.

Desktop Models: Ideal for Long-Term Surveys and Remote Monitoring Applications Manual and programmable data logging functions also make DUSTTRAK

II desktop monitors ideal for unattended applications. They come with USB (device and host), Ethernet, and analog and alarm outputs allowing remote access to data. User adjustable alarm setpoints for instantaneous or 15-minute short-term excursion limit (STEL) are available on desktop models. The alarm output with user-defined setpoint alerts you when upset or changing conditions occur.

All DUSTTRAK II desktop monitors have three unique features:

� Gravimetric sampling capability using a 37-mm filter cassette which can be inserted in-line with the aerosol stream allowing you to perform an integral gravimetric analysis for custom reference calibrations.

� They can be zeroed automatically using the external zeroing module. This optional accessory is used when sampling over extended periods of time. By zeroing the monitor during sampling, the effect of zero drift is minimized.

� STEL alarm feature for tracking 15-minute average mass concentrations when alarm setpoint has been reached for applications like monitoring fugitive emissions at hazardous waste sites.

Handheld Models: Perfect for Walk-Through Surveys and Single-Point Data Collection Applications DUSTTRAK II handheld models are lightweight and portable. They’re perfect for industrial hygiene surveys, point source location monitoring, indoor air quality investigations, engineering control evaluations/validation, and for baseline trending and screening. Like desktop models, they have manual and programmable data logging functions. In addition, they have single-point data logging capability.

Single-point data collection is used for walk-through industrial hygiene surveys and indoor air quality investigations.

New Software Makes Monitoring Easier than Ever TRAKPRO™ Data Analysis Software allows you to set up and program directly from a PC. A new feature is the ability for remote programming and data acquisition from your PC via wireless (922 MHz or 2.4 GHz) communications or over an Ethernet network. As always, you can print graphs, raw data tables, and statistical and comprehensive reports for recordkeeping purposes.

DUSTTRAK II Aerosol Monitor Features All Models � Li-Ion rechargeable batteries

� Internal and external battery charging capabilities

� Outlet port for isokinetic sampling applications

� User serviceable sheath flow and pump filters

� Logged test pause and restart feature

� Logged test programming

– Color touch screen—either manual mode or program mode

– TRAKPRO™ Data Analysis Software via a PC

� User adjustable custom calibration settings

� Instantaneous alarm settings with visual and audible warnings

� Real-time graph display

� View statistical information during and after sampling

� On-screen instrument status indicators: FLOW, LASER and FILTER

� Filter service indicator for user preventative maintenance

All Desktop Models � Hot swappable batteries

� Gravimetric reference sample capability

� Long life 10,000-hour internal pump

� TRAKPRO Data Analysis Software

� Auto zeroing module (optional accessory)

� STEL alarm setpoint

All Handheld Models � Long life 2,500-hour internal pump

� Single-point data collection for walk through surveys

� TRAKPRO Data Analysis Software

Battery Performance

*of a fully depleted battery

Models 8530/8531 (typical) 6600 mAH Li-Ion Battery Pack (P/N 801680)

1 Battery 2 Batteries

Battery Runtime (hours) up to 6 up to 12

Charge Time * (hours) in DUSTTRAK 4 8

Charge Time* (hours) in external battery charger (P/N 801685)

4 8

Model 8532 (typical) 3600 mAH Li-Ion Battery Pack (P/N 801681)

Battery

Battery Runtime (hours) up to 6

Charge Time * (hours) in DUSTTRAK 4

Charge Time* (hours) in external battery charger (P/N 801686)

Specifications Models 8530, 8531, and 8532 DUSTTRAK™ II Aerosol Monitor

Sensor Type 90° light scattering

Particle Size Range

0.1 to 10 µm

Aerosol Concentration Range 8530 Desktop 0.001 to 150 mg/m3

8531 Desktop High Conc. 0.001 to 400 mg/m3

8532 Handheld 0.001 to 150 mg/m3

Resolution ±0.1% of reading or 0.001 mg/m3, whichever is greater

Zero Stability ±0.002 mg/m3 per 24 hours at 10 sec time constant

Flow Rate

3.0 L/min set at factory, 1.40 to 3.0 L/min, user adjustable

Flow Accuracy ±5% of factory set point, internal flow controlled

Temperature Coefficient +0.001 mg/m3 per °C

Operational Temp 32 to 120°F (0 to 50°C)

Storage Temp -4 to 140°F (-20 to 60°C)

Operational Humidity 0 to 95% RH, non-condensing

Time Constant User adjustable, 1 to 60 seconds

Data Logging 5 MB of on-board memory (>60,000 data points) 45 days at 1 minute logging…