DEQ-CFW_00023952

LUX M-Mm
4:00-5:00 pm ET
State PartiCiDants:
Mark Smith (K4A)Robert "Bob"Delaney (K4|),Clark Fneise(NH),Jason Fage|(0Y)NikDzamov ]enAJ|en
and Susan Kessler (Ohio EPA), Nicole Mao(OR), Kelly Matthews AJVAiChuck Schm/erk/Ti Sarah Grace
Also Janice Willey (Navy/ITRC PFAS team analytical methods workgroup co-chair with Bob Delaney/M I)
EPA ParticiDants:
Chris Impellitteri (ORD), Cindy Caporale (Region 3), Steven Foster ' Linda Gaines and Jodi? (OLEM), Betsy
Behl (OW), Bobbi Carter - Region 4 (ORD lead region coordinator), Jennifer Orme-Zavaleta, Kacee
Deener and Lynn Flowers (ORD), Lisa Matthews/State Liaison (ORD State Liaison)
The purpose of this call was to share information on PFAS analytical methods work and provide
background in summary of the March 27 Ih call. The EPA PFAS Analytical Methods Workgroup (co-chairs:
Cindy Capora|e,Region 3; SchatziFitz-Jame4OLEK8;andChris|mpe||itteri3ORD)providedupdatesand
states shared information.
Chhs|mmpeUitte6:
Regarding the Drinking Water Method S37:
- There are 6 per- and polyfluorinated alkyl substances (PFAS) under the 3 rd Unregulated
Contaminants monitoring rule (U[K4R])
- Eight additional PFASnot listed onUCK4R3
- Finished (treated) drinking water samples
Non-DVVSample Methods
- Focus is to betowards simplicity, robustness, production lab use, and minimizing sample
transfers, extractions, filter steps, chemical additions (e.g. pH adjustments)
- Find abalance among sensitivity, ease ofimplementation, and monitoring requirements
- Method Validation: Ground, Surface, and Waste Waters
- 24PFAS(including all target ana|ytksinEPA Method S37)
- Methods under consideration (all using LC/M5/MS)
~ Direct injection
° Solid phase extraction (with and without radio -labeled internal standard
correction (i.e., isotope dilution)
- Direct injection based on EPA Region 5/Chicago Regional Laboratory Method (in the
middle of this and hope to have all data in -2 weeks [and then] run statistical analyses)
° Similar todraft American Society for Testing and Materials (ASTK4)Method
D7979
Phase 1:5internal (EPA)lab validation (commenced inApril 2D17)
Phase J:Sexternal (outside ofEPA) lab validation (-AuuustJO17)

— EPA isalso interested intalking with E[OS about states to participate in
Phase 2validation (Lisa Matthews, EPAPO[)
— Target Detection Limits: 1O'snano0ram/L
~ Bob Delaney (K4|) stated this likely will be a problem for them, as it isdifficult to
Bet into the heart ofa plume — 1'200 ppt detection limit. Will be difficult for
federal facilities.
— Assess methods through spring/summer 2D17
— Publish draft method infall ZO17
- Method Validation: Solids
— Soils, sediments, s|udKe/bioso|ids
— Same 24PFASasfor water (non-DVV)methods
— Commence inearly summer JU17
— Targeting Fall 2D17for draft methods
— Target Detection Limits: 1O's—lOO'snano8ram/L
— Higher due tocomplexity ofmatrix
-
Two Methods:
— Similar to ASTM D7968-17 (Determination of Polyfluorinated Compounds in Soil by
Liquid Chromatography Tandem K4ao Spectrometry (LC/MS/MS)
— Draft Procedure for Analysis of Perfluorinated Carboxylic Acids and Sulfonic Acids in
Sewage Sludge and Biosolids by HPLC/MS/MS (EPA-ORD National Exposure Research
Laboratory and EPA Office ofWater)
Sampling and Storage
— Holding time studies
— Sample vessel materials (glass, po|ycarbonate, high -density polyethylene)
— Standard operating procedures for field sampling (initial focus on groundwater)
Chris Impellitteri: (Opening statement to Q&A): Work focuses on samples that are not DW samples.
Bob Delaney (K8|):Radiometric question asking isthis isotope diUudon?
Answer: Yes, other companies will be coming up with new standards, but as of now, Wellington is the
Lynn Flowers (OR0):EPA isgetting organized, identifying across-Agency coordinator, briefings for new
Administrator, then work to get around to share more with states and others.
States having todeal with problems now orignore them.
State asked if these pieces of data could be shared with them
- Lynn said pieces wouldn't likely be useful and there isn't a complete literature search.
UCMR analyte list — states need tox info.
NJ has done a lot on PFNA — MA said they already have this information.

Tighdmeframe
PFASiscomplex towork with
Deve|opin8a10'pagefactsheetcoverin8samp|ingana|ysis,methods,andsitecharacterizabon
September lSdraft fact sheet due toeditor/expect end ofyear release
NH: Has completed proficiency testing
Call was adjourned.