Att J-1800000-11 Per- and Polyfluorinated Alkyl Substances (PFAS) Sampling.pdf

ATTACHMENT J-1800000-11

PRE-AND POLYFLUORINATED ALKYL SUBSTANCES(PFAS) SAMPLING REQUIREMENT

ATTACHMENT J-1800000-11 identifies the specific Sampling, Testing and Reports to be performed under the Recurring services portion of this contract. The contracted services for compliance with the current NAVSEA.

This document is the Scope of Work for the Recurring services for Base and Third option period portion of this procurement.

Scope of Work:

Sampling and analysis of drinking water for per- and polyfluorinated alkyl substances (PFAS) in accordance with ODW-SOP-19 from four (4) locations. The analysis shall be performed utilizing Method 537.1: “Determination of Selected Per- and Polyfluorinated Alkyl Substances in Drinking Water by Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)”. The locations include Scale House, Carpenter Shop, HA-1 and MSC Fire School.

ODW-SOP-19

REVISION 2

LABORATORY QUALITY AND

ACCREDITATION OFFICE

Standard Operating Procedure for

PER- AND POLYFLUORINATED

ALKYL SUBSTANCES (PFAS)

SAMPLING

DISTRIBUTION STATEMENT C: DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND

THEIR

CONTRACTORS; ADMINISTRATIVE OR OPERATIONAL USE; 21 JUL 2020. OTHER REQUEST FOR THIS

DOCUMENT MUST BE REFERRED TO NAVSEA 04X6 LQAO, 1661 REDBANK RD, BLDG 302, RM 1086, GOOSE

CREEK, SC 29445.

30 JUNE 2020

1. Title: SOP 019 – Sampling Drinking Water for Per- and Polyfluorinated Alkyl

Substances

2. Reference Materials:

2.1 DoD Environmental Field Sampling Handbook

2.2 40 CFR 141, National Primary Drinking Water Regulations

2.3 EDQW PFAS Sampling Factsheet, Revision 1.2, July 2017

2.4 Shoemaker, J. AND Dan Tettenhorst. Method 537.1: Determination of Selected

Per- and Polyfluorinated Alkyl Substances in Drinking Water by Solid Phase

Extraction and Liquid Chromatography/Tandem Mass Spectrometry

(LC/MS/MS). U.S. Environmental Protection Agency, Office of Research and

Development, National Center for Environmental Assessment, Washington, DC, 2018.

2.5 ITRC (Interstate Technology & Regulatory Council). 2020. PFAS Technical

Regulatory Guidance Document and Fact Sheets PFAS-1. Washington, D.C.: Interstate

Technology & Regulatory Council, PFAS Team. https://pfas-1.itrcweb.org/

3. Scope:

This procedure describes the sampling procedure for the analysis of drinking water by

EPA Method 537.1 for select per- and polyfluorinated alkyl substances (PFAS). If other analytical methods are to be used by a laboratory, sampling requirements such as bottle type, preservation, and holding time must be verified with the laboratory.

See EPA Method 537.1 for the full list of analytes.

4. Precautions:

PFAS are a class of manufactured compounds with unique chemical and physical properties that are used to make materials more resistant to stains, grease, and water.

These compounds have been used extensively in industrial, commercial and consumer products, such as plastics, waterproof coatings, and detergents. Contamination can be introduced at very low concentrations during the sampling process due to the prevalence of PFAS in these types of products, making it difficult to obtain unbiased samples.

Materials used during a sampling event can be grouped into two categories; those that will come into direct contact with the sample and those that should not. While it is good practice to avoid all materials that are known to or suspected of containing

PFAS, those that will come into contact with the sample is of most concern. PFAS-containing materials that may be present during sampling, but not come into contact with the sample, include but are not limited to the following:

• waterproof field books

• plastic clipboards

• sticky notes

• glue materials

• Tyvek® or Gore-Tex™ materials

• markers

• chemical (blue) ice packs

• cosmetics

• moisturizers

• hand cream or other related products

• sunblock or insect repellants

• food and drink containers

If any of these materials are handled using gloved hands, a new pair of gloves must be donned prior to collecting the next sample. Some alternatives to these materials include ball point pens, bags of ice, Alconox® or Liquinox® cleaners, loose paper on Masonite or aluminum clipboards, and raingear made of polyurethane and wax-coated materials.

Proper personal protective equipment (PPE) should always be used, regardless of whether it may contain PFAS. To prevent cross-contamination, as a precaution, it is also recommended that a new pair of gloves be used to collect each sample.

Materials that come into direct contact with samples have the greatest potential to introduce bias in sample results. Materials that come into contact with samples can either adsorb PFAS from the sample, such as low-density polyethylene (LDPE), or introduce

PFAS into the sample, which include, but are not limited to the following:

• waterproof coatings

• tape or adhesives

• fluorinated ethylene-propylene (FEP)

• polyvinylidene fluoride (PVDF)

• polychlorotrifluoroethylene (PCTFE)

• polytetrafluoroethylene (PTFE)

• ethylene tetrafluoroethylene (ETFE)

• decontamination soaps containing fluoro-surfactants such as Decon 90 � other

Teflon®-containing materials

If the disposition of a material that comes into direct contact with the sample is unknown or is suspected of containing PFAS, the material can be tested prior to the sampling event. This can be done by rinsing the material with “PFAS-free” water and submitting the rinse for analysis. “PFAS-free” does not mean the water is 100% free of PFAS but rather the concentration of PFAS is below the detection limit or less than half the limit of quantitation.

This minimizes the risk of introducing undesirable bias into the system.

5. Preservation and Holding Times:

Samples must be collected in 250 mL polypropylene bottles with unlined polypropylene screw caps. Sample bottles received from the laboratory must be preserved with Trizma® preset crystals (or equivalent, see Section 8.2). At the time of collection, samples that are >10

℃ should be chilled to 1 – 6 ℃ prior to shipping. Collected samples must be stored between 1 – 6 ℃ and should not exceed 10 ℃ within the first 48 hours following collection. The sample holding time is 14 days from the time of sampling to extraction.

6. Shipping:

Samples must be chilled during shipment to maintain a temperature of 1 – 6 ℃ during transit.

Ensure the chain of custody is properly filled out, sealed in a sealable bag, and taped to the inside of the cooler with the samples. Coolers should be lined generously with packing materials. All sample bottles should have an affixed label and wrapped in bubble wrap for shipping. Prior to sampling, coordinate with the laboratory to verify hours of operations to ensure compliance with holding times once shipped. DO NOT sample if the laboratory is unable to receive sample shipment. Notify the laboratory to confirm shipment. For internal use, maintain tracking numbers to verify shipment arrival and compliance with the holding time. Samples must not be frozen at any point during sampling, shipment, and storage at the laboratory.

7. Quality Control:

Collection of field Quality Control (QC) samples are useful to assess sources of contamination in the field. Required QC samples include Field Reagent Blanks

(FRB), Matrix Spikes (MS), and either a Field Duplicate (FD) or Matrix Spike

Duplicate (MSD). QC samples must be collected at a minimum frequency of one per each sample set using the same batch of sample bottles and preservative (samples, MS, FD, and MSD). A sample set is all samples collected from the same sampling site at the same time.

8. Equipment and Supplies:

8.1 Sample Bottles – 250 mL polypropylene bottles, containing preservative and an affixed label, with unlined polypropylene screw caps. Concentration of preservative in each bottle should be 5.0 g/L.

8.2 Preservative – Trizma® preset crystals, Reagent Grade, pH 7.0 (Sigma cat# T-

7193 or equivalent). Alternatively, a mix of Tris HCL [Tris

(hydroxymethyl)aminomethane hydrochloride] and Tris

[Tris(hydroxymethyl)aminomethane] with a weight ratio of

15.5/1 Tris HCL/Tris may be used, pH ~7.0 at 25 °C in reagent water.

8.3 FRB Bottle – Empty 250 mL polypropylene bottle, containing NO preservative and an affixed label, with unlined polypropylene screw caps.

8.4 “PFAS-free” Reagent Water – Laboratory supplied and verified “PFAS-free” water that has already been preserved prior to entering the field. Reagent water should be stored in the same batch of 250 mL polypropylene bottles, with an affixed label, and unlined polypropylene screw caps that the samples are collected in.

8.5 Indelible Ink Pen

8.6 Loose Paper for Field Log Records

8.7 Masonite or Aluminum Clipboards

8.8 Nitrile Gloves

8.9 Safety Glasses

8.10 Chain of Custody Forms

8.11 Chain of Custody Seals

8.12 Bubble Wrap

8.13 Packing Tape

8.14 Cooler

8.15 Frozen Bagged Ice – NOT BLUE ICE PACKS

8.16 Paper Towels

8.17 Sealable Bags – i.e. Ziploc®

9. Procedure:

9.1 Prior to the day of sampling:

9.1.1 Ensure that all items in Section 8 have been obtained and are ready for transport into the field. Verify the number of bottles available is equal to the number of samples to be collected. Additionally, extra sample bottles should be included to account for sampling errors that may occur in the field. Bottles for QC samples containing preservative shall be provided as well as a number of empty, unpreserved FRB bottles that are equal to the number of bottles containing preserved reagent water. Verify the same batch of preservative is used for the bottle containing the FRB reagent water and the field samples. All bottles used for a sampling event must be from the same bottle lot. The bottle lot must be verified as “PFAS-free” by the laboratory prior to shipment to the field. The documentation of this verification shall be provided and must be reviewed to ensure acceptance criteria is met. All bottles should be affixed with the appropriate label.

9.1.2 Reagent water used for the FRB shall be verified as “PFAS-free”. The documentation of this verification shall be provided with the associated

FRB bottles and must be reviewed to ensure acceptance criteria is met for the sampling event.

9.1.3 Coordinate with the laboratory to verify hours of operations to ensure compliance with holding times once shipped. Notify the laboratory to confirm shipment. 9.2 Day of sampling:

9.2.1 Sampling personnel should be aware of and avoid, to the best of their ability, any PFAS-containing materials that may come into contact with samples. 9.2.2 Sampling personnel must wash hands prior to sampling with an approved “PFAS-free” soap, and wear safety glasses and nitrile gloves during the sampling process. Personnel must be careful to not use hand sanitizers of any kind after washing hands or during the sampling event. Change gloves after collecting each sample, except when taking multiple samples (sample, FD, MS, MSD) from a single location (spigot).

9.2.3 Remove the faucet aerator, strainer, or hose prior to turning on the faucet for sampling while ensuring any type of tape is not attached to the spigot.

Before collecting the sample, purge the faucet using the cold-water spigot for a minimum of 5 minutes to allow the temperature to stabilize.

9.2.4 Adjust the flow rate to approximately 500 mL/minute (approximately 1/8th-inch diameter stream). Do not change the water flow once sample collection has begun.

9.2.5 Select the bottle identified for the location on the label. This bottle is a 250 mL polypropylene bottle with an unlined polypropylene screw cap containing preservative.

9.2.6 Remove the bottle cap while avoiding all contact with the rim or inside of the bottle. Do not set the cap, open side down, on any surface or put it in a pocket.

It is best to hold the cap in a gloved hand while sampling. DO NOT

RINSE

THE SAMPLE BOTTLE PRIOR TO USE.

9.2.7 Hold the open end of the bottle away from you and place the bottle under the spigot tilted so that the sample runs down the inside of the bottle. Make sure the spigot does not touch the bottle. Fill the bottle to within one to two inches from the top (typically this is to the bottom of the bottle neck). Do not allow the bottle to overflow or spill over and do not agitate while filling. If sample overflows or spills, discard that bottle and collect a new sample to replace it. Be aware of any unusual odor or physical characteristics (e.g., particulate, color) associated with the water coming from the spigot.

9.2.8 Replace the screw cap securely on the bottle and gently agitate the bottle to dissolve any remaining preservative. Ensure the preservative is completely dissolved and the sample is thoroughly mixed before continuing. Keep the sample bottle sealed from time of collection until extraction.

9.2.9 Dry the exterior surface of the bottle using a clean paper towel.

9.2.10 Fill out the bottle labels with the sample ID (limited to 20 characters including dashes and spaces), sample location, sampler’s initials, and date and time of collection. Record the collection date as Day/Month (three letter abbreviation)/Year (four digits) (e.g., 01 Jan 2020). Time must be recorded as coordinated universal time (UTC) ± x hours depending on the time zone.

Record all of this information in the field logbook as well.

9.2.11 Complete the chain of custody form. It is recommended, but not required, that a chain of custody seal is affixed to the bottles and lids. This is required only if samples are sent via commercial carrier without being accompanied by a formal chain of custody form. Note any observations on the chain of custody such as unusual odors or physical characteristics of the sample.