233050-Industrial_Hygiene_Monitoring-final_0001.pdf

400 Street Road, Bensalem, PA 19020 / 215-244-1300 / Fax 215-244-4349 www.criterionlabs.com

At:

1060 Knox Tindle Lane

Tredyffrin Township, PA 19087

For:

Hannah Sanner

Vally Forge National Historical Park

1400 North Outer Line Drive

King of Prussia, PA 19406

Prepared By:

Mr. Eric Wysocki

Project Manager

Report Date:

December 21, 2023

Project Number:

233050

Date of Project:

December 14, 2023

INDUSTRIAL

HYGIENE

MONITORING

Field

Services

Lab

Training

Industrial Hygiene Monitoring

Valley Forge National Historical Park Criterion Laboratories, Inc.

TABLE OF CONTENTS

Section Number

1.0 Executive Summary

1.1 Purpose

1.2 Personnel

1.3 Conclusions

2.0 Project Overview

2.1 Procedures

2.2 Measurement Results

2.3 Discussion

3.0 Analytical Results

1.0 EXECUTIVE SUMMARY

1.0 EXECUTIVE SUMMARY

1.1 Purpose

Criterion Laboratories, Inc. (Criterion) was requested by Hannah Sanner of Valley Forge

National Historical Park to perform air monitoring for cresols at 1060 Knox Tindle Lane in Tredyffrin Township, PA.

The purpose of the monitoring was to evaluate airborne concentrations of cresols adjacent to stored items coated with creosote. Air monitoring was conducted on December 14, 2023.

1.2 Personnel

The monitoring was performed by Ms. Julie Mui, Certified Industrial Hygienist (CIH) of

Criterion. The report was written by Mr. Eric Wysocki, Project Manager and reviewed by Mr. Michael Panepresso, VP of Operations, both of Criterion.

1.3 Conclusions

Area samples collected in the barn, adjacent to creosote coated materials, indicated cresols concentrations below the detection limit of the analytical method. Concentrations were well below the Occupational Safety and Health Administration (OSHA) Permissible exposure Limit (PEL of 5 parts per million (ppm) and the National Institute for

Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL) of 2.3 ppm.

The results indicate air quality within the barn has not been significantly impacted by the stored creosote coated materials.

Written By: Reviewed By:

Eric Wysocki Michael Panepresso

Project Manager VP of Operations

2.0 PROJECT OVERVIEW

2.0 PROJECT OVERVIEW

2.1 Procedures

Area sampling for creosote was conducted using battery powered pumps calibrated at approximately 0.2 lpm connected with a section of tygon tubing to an

XAD 7 sorbent tube. The samples were analyzed for cresols by EMSL Analytical in Cinnaminson, NJ in accordance with the NIOSH 2546 method.

2.2 Measurement Results

Results of the monitoring are found in the Analytical Results section of this report, and are summarized as follows:

Area monitoring conducted in the barn indicated cresols concentrations of < 0.18 parts per million (ppm).

2.3 Discussion

Airborne concentrations of creosote in the barn were below the detection limit of the analytical method as well as the OSHA PEL and NIOSH REL. The results indicate air quality within the barn has not been significantly impacted by the stored creosote coated materials.

Creosote coated materials should not be burned, otherwise the compound may become an inhalation hazard. Special disposal requirements might be required for creosote coated materials.

3.0 ANALYTICAL RESULTS

EMSL Analytical, Inc. 200 Route 130 North Cinnaminson, NJ 08077

Order ID: 282304743

Attn: Eric Wysocki

Criterion Laboratories, Inc.

400 Street Road

Bensalem, PA 19020

Customer ID:

Customer PO:

Date Received:

CRIT52

12/14/23

Project: 233050 – Valley Forge National Park EMSL Project ID:

Report Date: 12/19/23 Date Analyzed: 12/18/23

Test Report – Cresol Analysis by GC/FID of Solid Sorbent tubes via NIOSH

Method 2546, Issue 1, 8/15/94

Notes:

1. Samples were received in acceptable condition unless otherwise noted.

2. These results relate only to the samples tested.

3. Sample results are not blank corrected unless otherwise noted.

4. Discernable field blank(s) submitted with samples if listed.

BJ

Analyst

Sample ID Identification Component Volume

(L)

Sample

Weight

(mg)

Sample

Conc.

(mg/m3)

Sample

Conc.

(PPM)

Reporting

Limit

(mg/m3)

282304743-0001 233050-01; Barn – By

Shelving Units o-Cresol 12.40

<0.010 <0.81 <0.18 0.81 m,p-Cresol <0.010 <0.81 <0.18 0.81

282304743-0002 233050-02; Barn – By

Creosote Samples on Floor o-Cresol 12.60

<0.010 <0.79 <0.18 0.79 m,p-Cresol <0.010 <0.79 <0.18 0.79

Desorption

Blank o-Cresol

<0.010 N/A N/A N/A m,p-Cresol <0.010 N/A N/A N/A

* EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. 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 or analytical method limitations. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted.

OrderID: 282304743