S&ME, Inc. | 620 Wando Park Boulevard | Mt Pleasant, SC 29464 | p 843.884.0005 | www.smeinc.com

September 15, 2017

Black and Veatch Corporation

550 King Street

Charleston, South Carolina 29403

Attention: Mr. Kirby Dobberfuhl

Dobberfuhlk@bv.com

Reference: Lead in Soil Sampling Report

Mount Pleasant Wastewater Treatment Plant Expansion

Mount Pleasant, South Carolina

S&ME Project No. 4213-17-233

Dear Mr. Dobberfuhl:

S&ME, Inc. (S&ME) is pleased to provide this report summarizing the lead in soil sampling we performed at the

referenced site on August 25, 2017. Our services were performed in general accordance with S&ME Proposal No.

42-1601271-C1R dated August 14, 2017. The following sections include the project background, sampling and

analysis procedures, findings and results, and conclusions and recommendations, as necessary.

Project Background

On April 10, 2017, Ms. Tia Trate (Black & Veatch Corporation) requested a proposal for soil sampling of total lead

content for those subject structures which were determined to have the presence of lead-based paint. An

Asbestos and Lead-based Paint Assessment performed by S&ME on August 22, 23 and 24, 2017 of several

structures located on the Goodwater, Morse, and Edens Tracts identified lead-based paint on the exterior of the

house located at 1461 Venning Road, Structure #2 adjacent to the house located at 1461 Venning Road located at

the Edens Tract, and the Conex Box located at the Morse Tract. It is our understanding that the Conex box

currently on site was moved to its current location from approximately 50 feet away. Through past and present

aerial photography, we were able to determine the approximate past location of the Conex box. The soil sampling

was subsequently performed on August 25, 2017 from the drip lines of the Conex Box (past and present

locations), Structure #2, and 1461 Venning Road.

Procedures

One composite sample was collected from the drip lines of each of the three structures and former approximate

location of the Conex Box. The samples were collected from the surface to a depth of 1-2” using decontaminated

stainless steel sampling spoons. The samples were placed in a sealed container and shipped to EMSL Analytical in

Kernersville,

Lead in Soil Sampling Report

Mount Pleasant Wastewater Treatment Plant Expansion

Mount Pleasant, South Carolina

S&ME Project No. 4213-17-233

September 15, 2017 2

North Carolina for analysis using Lead in Soils by Flame Atomic Absorption Spectroscopy (SW 846 3050B/7000B).

The laboratory is accredited by the National Lead Laboratory Accreditation Program (NLLAP) and the American

Industrial Hygiene Association.

For the purposes of this report, the results were compared to the lead screening levels for soil listed in the USEPA

Regional Screening Levels for Chemical Contaminants at Superfund Sites table (SL Table) dated May 2016:

Residential screening level (400 parts per million) for exposure to soil through ingestion, inhalation of

particulates, and dermal contact; and

Industrial screening level (800 parts per million) for exposure to soil through ingestion, inhalation of

particulates, and dermal contact; and

Findings and Results

The soil sampling was performed on August 25, 2015, and one representative composite sample was collected at

each of the four subject areas. Based on the results of the soil samples collected from the referenced areas the

lead levels were below the analytical detection limit, and did not exceed the USEPA Residential Screening Level of

400 mg/kg or the USEPA Industrial Screening Level of 800 mg/kg.

A summary of lead results is provided in Attachment I, and a site plan is provided in Attachment II. A copy of the

laboratory analyses and chain-of-custody record is provided in Attachment III.

Limitations

The testing was limited to the ground surface (1”-2” depth) in the four subject areas and did not include a vertical

or horizontal assessment of the entire site. This report is provided for the sole use of the client. Use of this report

by any other parties will be at such party's sole risk and S&ME disclaims liability for any such use or reliance by third

parties. The results presented in this report are indicative of conditions only during the time of the sampling and of

the specific areas referenced

Conclusions and Recommendations

The soil sampling and analysis for total lead performed at the house and adjacent structure (Structure #2) located

at 1461 Venning Road located on the Edens Tract, and current and past approximate location of the Conex Box at

the Morse Tract in Mount Pleasant, South Carolina on August 25, 2017 did not identify lead levels above the

USEPA Residential or Industrial Screening Levels. Based on the results of the sampling, no recommendations are

given at this time.

Lead in Soil Sampling Report

Mount Pleasant Wastewater Treatment Plant Expansion

Mount Pleasant, South Carolina

S&ME Project No. 4213-17-233

September 15, 2017 3

Closing

S&ME appreciates the opportunity to provide you with our industrial hygiene services and we look forward to our

continued association. If you have any questions concerning the results, please call either of us at (843) 884-0005.

Sincerely,

S&ME, Inc.

Terry W. Richburg James L. Killingsworth, CHMM

Environmental Group Leader Environmental Services Area Manager/V.P.

Attachments

Attachments

Attachment I –Summary of Lead Results

Summary of Lead in Soil Results

MP WWTP Expansion

Mount Pleasant, South Carolina

S&ME Project No. 4213-17-233

Date of Sampling: August 25, 2017

Sample No. Location MaterialResults

(Total Lead)Units

L-01 Conex Box - Present Location Soil (surface) ˂ 40 mg/kg (ppm)

L-02 Conex Box - Previous Location Soil (surface) ˂ 40 mg/kg (ppm)

L-03 Structure #2 (yellow house adjacent to 1461 Venning Road) Soil (surface) ˂ 40 mg/kg (ppm)

L-04 1461 Venning Road Soil (surface) ˂ 40 mg/kg (ppm)

400 mg/kg (ppm)

800 mg/kg (ppm)

Abbreviations:

mg/kg = milligrams per killigrams

ppm = part per million

1 mg/kg = 1ppm

USEPA = United States Environmental Protection Agency

Table I: Summary of Lead Results

USEPA Residential Screening Level

USEPA Industrial Screening Level

1 of 1

Attachment II – Site Plan

1643B RIFLE RANGE ROAD

1643A RIFLE RANGE ROAD

SHED

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CONEX BOX

1465 VENNING ROAD

1461 VENNING ROAD

STRUCTURE #2

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OF CONEX BOX

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Attachment III – Laboratory Analysis Sheets and Chain of Custody

Record

Client Sample Description ConcentrationLab ID AnalyzedLead

Collected

EMSL Analytical, Inc.706 Gralin Street, Kernersville, NC 27284Phone/Fax: (336) 992-1025 / (336) 992-4175http://www.EMSL.com greensborolab@emsl.com

Attn: Terry RichburgS&ME, Inc.620 Wando Park BoulevardMount Pleasant, SC 29464

Received: 08/28/17 8:30 AM

4213-17-233

Fax: (843) 881-6149Phone: (843) 884-0005

Project:

8/24/2017Collected:

Test Report: Lead in Soils by Flame AAS (SW 846 3050B/7000B)*

021705407CustomerID: SMEI51CustomerPO:ProjectID:

EMSL Order:

Site: Conex (Present Location)021705407-0001L-01 <40 mg/Kg8/30/20178/24/2017

Site: Conex (Past Location)021705407-0002L-02 <40 mg/Kg8/30/20178/24/2017

Site: Eden- Structure #2 (White Residence)021705407-0003L-03 <40 mg/Kg8/30/20178/24/2017

Site: Eden- 1461 Venning Street021705407-0004L-04 <40 mg/Kg8/30/20178/24/2017

Page 1 of 1

James Cole, Laboratory Manageror other approved signatory

Test Report ChmSnglePrm/nQC-7.32.3 Printed: 8/31/2017 8:31:35 AM

*Analysis following Lead in Soil/Solids by EMSL SOP/Determination of Environmental Lead by FLAA. Reporting limit is 40 mg/kg based on the minimum sample weight per our SOP. Unless noted, results in this report are not blank corrected. This report relates only to the samples reported above and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities. Samples received in good condition unless otherwise noted. Results reported based on dry weight. "<" (less than) result signifies that the analyte was not detected at or above the reporting limit. Measurement of uncertainty is available upon request. The QC data associated with the sample results included in this report meet the recovery and precision requirements unless specifically indicated otherwise. Definitions of modifications are available upon request.Samples analyzed by EMSL Analytical, Inc. Kernersville, NC EMSL Lab ID 102564 is accredited by the AIHA Laboratory Accreditation Program (AIHA-LAP), LLC in the Environmental Lead accreditation program for Lead in Soil.

Initial report from 08/31/2017 08:31:35

OrderID: 021705407

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OrderID: 021705407

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