Report_Lead_AC-841579_HWY-410.pdf

LEAD BASED PAINT INSPECTION REPORT

FOR

KLEIN ENGINEERING, PSC

SAMPLING CONDUCTED AT

AC-811544

PRHTA EMERGENCY RELIEF PROGRAM 2018

- LANDSLIDES

PROJECT ID: ER-HWY-410,

PR-722, KM 5.7 AIBONITO, PR

ZEM-18259

NOVEMBER, 2018

PREPARED BY:

ZIMMETRY ENVIRONMENTAL MANAGEMENT CORP.

PO BOX 3545 BAYAMÓN, PR 00958

PHONE: 787.995.0005

WWW.ZIMMETRY.COM

INFO@ZIMMETRY.COM

ZIMMETRY ENVIRONMENTAL MANAGEMENT CORP.

Lead Based Paint Inspection PR-722 Km 5.7, Aibonito, PR

AC-811544

TABLE OF CONTENT

SECTION 1: Executive Summary

1.1 Introduction

1.2 Summary of Property Evaluation

SECTION 2: LEAD-BASED PAINT INSPECTION REPORT Summary

2.1 Overview of the Evaluation Summary

2.2 Sampling Procedure and Results Presentation

2.3 Conditions and Limitations

2.4 Environmental Assessment Report Certification

SECTION 3: APPENDICES

Appendix A: XRF Sampling Data

Appendix B: Certifications, Licenses, and Accreditations

Appendix C: XRF’s Performance Characteristics Sheet

PR-722 Km 5.7, Aibonito, PR

AC-811544

SECTION 1: EXECUTIVE SUMMARY

1.1 INTRODUCTION

A Lead-Based Paint inspection was conducted on November 15, 2018 at the road landslides located at PR-722 in Km 5.7 in Aibonito, Puerto Rico as part of PRHTA Emergency Relief Program 2018 – AC-811544 (ER-HWY-410). The lead-based paint inspection was performed to identify paint that contains lead above allowable levels and to assist with the compliance of local, state and federal regulations.

1.2 SUMMARY OF PROPERTY EVALUATION

The project consisted in the evaluation of the areas of the aforementioned project. The evaluation found that no lead-based paint above the regulatory levels were present through the site on the date of the evaluation.

PR-722 Km 5.7, Aibonito, PR

AC-811544

SECTION 2: LEAD-BASED PAINT INSPECTION REPORT

2.1 OVERVIEW OF THE EVALUATION

This lead-based paint inspection is an investigation to identify all lead-based paint on a surface-by-surface basis. A lead-based paint inspection conforming to HUD guidelines was performed at the road.

Averages of 10 samples were taken at all identified surfaces on the day of the evaluation using X-ray fluorescence (XRF) analyzer. The evaluation found that no lead-based paint above the regulatory levels were present through the site on the date of the evaluation.

Some of the remaining XRF test locations exhibited lead-in-paint levels below the level that EPA identifies as lead-based paint, namely 1.0 mg/cm2. Such surfaces could create dust-lead or soil-lead hazards if the paint is turned into dust by abrasion, scraping, or sanding. Should these or any lead containing components or surfaces be disturbed in any manner that generates dust, care should be taken to limit its spread.

Testing was performed by Harry Peña, state-certified risk assessor 3362-1217-RA-015, using the Niton XLp-300A XRF, SN-101222. The credentials are provided in Section 3, Appendix B: Certifications, Licenses, and Accreditations. The XRF analyzer is designed to measure the lead content of surface coatings on a variety of building surfaces, substrates, and components. The measurement is rapid and nondestructive and, according to the manufacturer, is capable of detecting lead concentrations that occur within numerous layers of various surface coatings.

Please refer to the XRF Testing Results Section 3, Appendix A: XRF Sampling Data for the detailed analytical testing results for each distinct area inspected. The reports provide a complete testing data.

2.2 SAMPLING PROCEDURE AND RESULTS PRESENTATION

The Lead Based Paint Sampling Procedure was design to evaluate and document all the data obtained form the inspection in a sequential method that provided confidence at the moment of the results presentation.

The survey was performed following the methodology established in the HUD Guidelines for the Evaluation and Control of Lead Based Paint in Housing (2012 revision) and the PREQB Lead Based Paint Abatement Control Regulation. The surfaces evaluation was performed as follows:

If the lead concentration measured by the XRF Spectrum Analyzer is less than 1.0 mg/cm2 it is considered negative

If the lead concentration measured by the XRF Spectrum Analyzer is equal or greater than 1.0 mg/cm2 it is considered positive.

PR-722 Km 5.7, Aibonito, PR

AC-811544

2.3 CONDITIONS AND LIMITATIONS—DISCLAIMER

Zimmetry Environmental Management Corp. has performed this lead-based paint inspection in a thorough and professional manner consistent with commonly accepted industry standards. The Preparer cannot guarantee and does not warrant that this evaluation has identified all adverse environmental factors and/or conditions affecting this property on the date of the evaluation.

The results reported and conclusions reached by the Preparer are solely for the benefit of the Owner. The results and opinions in this report, based solely on the conditions found at the property on the date of the evaluation, are valid only on that date. The Preparer assumes no obligation to advise the client of any changes in any real or potential lead-based paint hazards at this residence beyond the date of the property evaluation.

2.4 ENVIRONMENTAL ASSESSMENT REPORT CERTIFICATION

Zimmetry Environmental Management Corp. has performed this lead-based paint inspection in a thorough and professional manner consistent with commonly accepted industry standards. The inspection was conducted on November 15, 2018 by Harry Peña, state-certified lead inspector 3362-1217-RA-015, qualified by experience, education and training in the recognition of lead based paint and approved sampling techniques using the Niton XLp-300A XRF, SN-101222.

Harry Peña, MSEM Environmental Risk Assessor

Isamar Harry

PR-722 Km 5.7, Aibonito, PR

AC-811544

SECTION 3: APPENDICES

Appendix A: XRF Sampling Data

Appendix B: Certifications, Licenses, and Accreditations

Appendix C: XRF’s Performance Characteristics Sheet

PR-722 Km 5.7, Aibonito, PR

AC-811544

APPENDIX A: XRF SAMPLING DATA

PROJECT:

DATE: 11/15/2018 Page 1 of 1 Sample

ID.

Functional Space Location Color Subst. XRF Reading Pos/Neg Comments

1 Calibration 1.00 2 Calibration 1.00 3 Calibration 1.00 4 Km 13.25 Pavement Marking White Concrete 0.00 Negative 5 Km 13.25 Pavement Marking Yellow Concrete 0.40 Negative 6 Km 13.25 Pavement Marking White Concrete 0.00 Negative 7 Km 13.25 Pavement Marking Yellow Concrete 0.50 Negative 8 Calibration 1.00 9 Calibration 1.00

10 Calibration 1.00

Landslides at PR-722, Km 5.7 Aibonito, Puerto Rico CLIENT: Klein Engineering, PSC

ER-HWY-410 - AC-811544 LBP Inspector: Harry Peña

PR-722 Km 5.7, Aibonito, PR

AC-811544

APPENDIX B: CERTIFICATIONS, LICENSES, AND

ACCREDITATIONS

PR-722 Km 5.7, Aibonito, PR

AC-811544

APPENDIX B: CERTIFICATIONS, LICENSES, AND

ACCREDITATIONS

PR-722 Km 5.7, Aibonito, PR

AC-811544

APPENDIX C: XRF’s PERFORMANCE CHARACTERISTICS

SHEET

Niton XLp 300, 9/24/2004, ed. 1

Performance Characteristic Sheet

EFFECTIVE DATE: September 24, 2004 EDITION NO.: 1

MANUFACTURER AND MODEL:

Make: Niton LLC Tested Model: XLp 300 Source: 109Cd Note: This PCS is also applicable to the equivalent model variations indicated below, for the Lead-in-Paint K+L variable reading time mode, in the XLi and XLp series:

XLi 300A, XLi 301A, XLi 302A and XLi 303A.

XLp 300A, XLp 301A, XLp 302A and XLp 303A.

XLi 700A, XLi 701A, XLi 702A and XLi 703A.

XLp 700A, XLp 701A, XLp 702A, and XLp 703A.

Note: The XLi and XLp versions refer to the shape of the handle part of the instrument. The differences in the model numbers reflect other modes available, in addition to Lead-in- Paint modes. The manufacturer states that specifications for these instruments are identical for the source, detector, and detector electronics relative to the Lead-in-Paint mode.

FIELD OPERATION GUIDANCE

OPERATING PARAMETERS:

Lead-in-Paint K+L variable reading time mode.

XRF CALIBRATION CHECK LIMITS:

0.8 to 1.2 mg/cm2 (inclusive)

The calibration of the XRF instrument should be checked using the paint film nearest 1.0 mg/cm2 in the NIST Standard Reference Material (SRM) used (e.g., for NIST SRM 2579, use the 1.02 mg/cm2 film).

If readings are outside the acceptable calibration check range, follow the manufacturer's instructions to bring the instruments into control before XRF testing proceeds.

SUBSTRATE CORRECTION:

For XRF results using Lead-in-Paint K+L variable reading time mode, substrate correction is not needed for:

Brick, Concrete, Drywall, Metal, Plaster, and Wood

INCONCLUSIVE RANGE OR THRESHOLD:

K+L MODE

READING DESCRIPTION

SUBSTRATE THRESHOLD

(mg/cm2)

Results not corrected for substrate bias on any substrate

Brick Concrete Drywall Metal

Plaster Wood

1.0 1.0 1.0 1.0 1.0 1.0

BACKGROUND INFORMATION

EVALUATION DATA SOURCE AND DATE:

This sheet is supplemental information to be used in conjunction with Chapter 7 of the HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing ("HUD Guidelines"). Performance parameters shown on this sheet are calculated from the EPA/HUD evaluation using archived building components. Testing was conducted in August 2004 on 133 testing combinations. The instruments that were used to perform the testing had new sources; one instrument’s was installed in November 2003 with 40 mCi initial strength, and the other’s was installed June 2004 with 40 mCi initial strength.

OPERATING PARAMETERS:

Performance parameters shown in this sheet are applicable only when properly operating the instrument using the manufacturer's instructions and procedures described in Chapter 7 of the HUD Guidelines.

SUBSTRATE CORRECTION VALUE COMPUTATION:

Substrate correction is not needed for brick, concrete, drywall, metal, plaster or wood when using Lead-in- Paint K+L variable reading time mode, the normal operating mode for these instruments. If substrate correction is desired, refer to Chapter 7 of the HUD Guidelines for guidance on correcting XRF results for substrate bias.

EVALUATING THE QUALITY OF XRF TESTING:

Randomly select ten testing combinations for retesting from each house or from two randomly selected units in multifamily housing. Use the K+L variable time mode readings.

Conduct XRF retesting at the ten testing combinations selected for retesting.

Determine if the XRF testing in the units or house passed or failed the test by applying the steps below.

Compute the Retest Tolerance Limit by the following steps:

Determine XRF results for the original and retest XRF readings. Do not correct the original or retest results for substrate bias. In single-family housing a result is defined as the average of three readings. In multifamily housing, a result is a single reading.

Therefore, there will be ten original and ten retest XRF results for each house or for the two selected units.

Calculate the average of the original XRF result and retest XRF result for each testing combination.

Square the average for each testing combination.

Add the ten squared averages together. Call this quantity C.

Multiply the number C by 0.0072. Call this quantity D.

Add the number 0.032 to D. Call this quantity E.

Take the square root of E. Call this quantity F.

Multiply F by 1.645. The result is the Retest Tolerance Limit.

Compute the average of all ten original XRF results.

Compute the average of all ten re-test XRF results.

Find the absolute difference of the two averages.

If the difference is less than the Retest Tolerance Limit, the inspection has passed the retest. If the difference of the overall averages equals or exceeds the Retest Tolerance Limit, this procedure should be repeated with ten new testing combinations. If the difference of the overall averages is equal to or greater than the Retest Tolerance Limit a second time, then the inspection should be considered deficient.

Use of this procedure is estimated to produce a spurious result approximately 1% of the time. That is, results of this procedure will call for further examination when no examination is warranted in approximately 1 out of 100 dwelling units tested.

TESTING TIMES:

For the Lead-in-Paint K+L variable reading time mode, the instrument continues to read until it is moved away from the testing surface, terminated by the user, or the instrument software indicates the reading is complete. The following table provides testing time information for this testing mode. The times have been adjusted for source decay, normalized to the initial source strengths as noted above. Source strength and type of substrate will affect actual testing times. At the time of testing, the instruments had source strengths of 26.6 and 36.6 mCi.

Testing Times Using K+L Reading Mode (Seconds)

All Data Median for laboratory-measured lead levels (mg/cm2)

Substrate 25th Percentile

Median 75th Percentile

Pb < 0.25 0.25 < Pb<1.0 1.0 < Pb

Wood Drywall

4 11 19 11 15 11

Metal

4 12 18 9 12 14

Brick Concrete Plaster

8 16 22 15 18 16

CLASSIFICATION RESULTS:

XRF results are classified as positive if they are greater than or equal to the threshold, and negative if they are less than the threshold.

DOCUMENTATION:

A document titled Methodology for XRF Performance Characteristic Sheets provides an explanation of the statistical methodology used to construct the data in the sheets, and provides empirical results from using the recommended inconclusive ranges or thresholds for specific XRF instruments. For a copy of this document call the National Lead Information Center Clearinghouse at 1-800-424-LEAD.

This XRF Performance Characteristic Sheet was developed by the Midwest Research Institute (MRI) and QuanTech, Inc., under a contract between MRI and the XRF manufacturer. HUD has determined that the information provided here is acceptable when used as guidance in conjunction with Chapter 7, Lead-Based Paint Inspection, of HUD’s Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing.