PFC-Template and Questionnaire for the pilot study on PFC (2017) The template was prepared by Emanuele Ferretti and adapted a table reported in CONCAWE/NICOLE review on PFAS (https://www.concawe.eu//uploads/Modules/Publications/rpt_16-8.pdf) suggested by Jonathan Smith during the meeting in Amersfoort.

Contact person / Institution PFC in Groundwater Contact person / Institution Name:   In "Country" Institution for the year Address: or the period (from - to) the following data on the occurrence of PFC in groundwater are available Phone Fax E-Mail:

Substance Name Acronym CAS # Molecular formula Methodology LOD LOQ Total number of sites Perfluoroalkyl Carboxylates / Perfluoroalkyl Carboxylic Acids PFCAs   Perfluorobutanoic Acid PFBA 375-22-4 F(CF2)3COOH Perfluoropentanoic Acid PFPeA 2706-90-3 F(CF2)4COOH Pentadecafluorooctanoic Acid Ammonium Salt (Ammonium Pentadecafluorooctanoate) APFO 3825-26-1 C8 H4 NF15 NO2 In red some compounds are highlighted for that analytical methods might be lacking.

Detected but not quantified* Maximum concentration at sites Number of sites Detected but not quantified* Watertyp (here 1 = Ground water) Year or Period Member State Maximum concentration at sites Detection < LOQ Detection ≥ LOQ to 0.05 µg/L Detection ≥ 0.05 to 0.1 µg/L Detection ≥ 0.1 to 1.0 µg/L Detection ≥ 1.0 to 3.0 µg/L Detection ≥ 3.0 to 10.0 µg/L Detection ≥ 10.0 µg/L *e.g. result of “non target analysis (screening methods)”

Reasons of groundwater contamination by PFC* Type of monitoring: Yes No Unknown Comments Representative   Orientated at known or expected contamination Non target analysis Reasons of groundwater contamination by PFC* via bank filtration Fire-fighting foams drill ground at e.g. airports fire fighting water Textile protection Carpet protection Paper and paperboard protection Coating of metals and ceramics Impregnation agents Use of contaminated sludge (from paper industry) Waste deposits Leaky sewage water systems Other reasons please verify: * Indication of several reasons is possible!

First results from Germany (only part of data available) Sum > LOQ Substance Name 442 Perfluorooctanoic Acid 432 Perfluorohexanoic Acid 420 Perfluoropentanoic Acid 407 Perfluorobutanoic Acid 388 Perfluoroheptanoic Acid 248 Perfluorohexane Sulfonate 213 Perfluorooctane Sulfonate 179 Perfluorobutane Sulfonate 86 Perfluorodecanoic Acid 83 Perfluorononanoic Acid 31 1H, 1H, 2H, 2H-Perfluorooctanesulfonic Acid 28 Perfluoroheptane Sulfonate 24 1H, 1H, 2H, 2H-Perfluorodecanesulfonic Acid 19 1H, 1H, 2H, 2H-Perfluoroundecanesulfonic Acid 18 Perfluoroundecanoic Acid 15 Perfluorododecanoic Acid 10 Perfluorooctane Sulfonamide 2 1H, 1H, 2H, 2H-Perfluorohexanesulfonic Acid Perfluorodecane Sulfonate Perfluorotetradecanoic Acid First results from Germany (only part of data available) More details are depicted in the Excel-Sheet