OHA Drinking Water Services
OR41
PWS ID: 00957 ---- WINSTON-DILLARD WATER DISTRICT
PFAS Sample Results

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Initial Monitoring
EP ID Entry point name Water
type		 Availability Frequency Schedule
begin		 Schedule
end		 First quarter or
First sample		 Second quarter or
Second sample		 Third
quarter		 Fourth
quarter
EP-A EP FOR SOUTH UMPQUA RIVER SW Permanent 4 quarters 1/1/2023 12/31/2023 2/21/2023 5/16/2023 8/23/2023 11/21/2023
For each active entry point served by surface water, collect 4 consecutive quarters of samples within a 12-month period with samples collected 2 to 4 months apart.


Sample Summaries
For compliance? EP ID Entry point name Sample date # Detections # MCL
exceedances		 Sample ID
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 0 0 2202100-01RE1
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 0 0 109903P
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 0 0 101650P
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 0 0 104170P
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 0 0 107030P


Sample Results
For compliance? EP ID
Entry point name Sample date Received date Analyte
code		 Analyte abbreviation
 Analyte name
Result (ng/L)
MCL
(ng/L)		 MRL
(ng/L)		 Sample ID Lab ID Lab name Analysis method Method name TINWSF
ISN		 TSASAMPL
ISN		 TSASAR
ISN		 SelectDataSet SelectAnalyte SelectDetects SelectLabID SelectLabName SelectMethod SelectMethodName
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2813 11Cl-PF3OUdS 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243206 No 2813 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2821 4:2FTS 1H,1H, 2H, 2H-Perfluorohexane sulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243140 No 2821 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2820 6:2FTS 1H,1H, 2H, 2H-Perfluorooctane sulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243151 No 2820 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2822 8:2FTS 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243129 No 2822 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2814 9Cl-PF3ONS 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acd ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243195 No 2814 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2815 ADONA 4,8-Dioxa-3H-perfluorononanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243184 No 2815 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 101 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243173 No 2816M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2819 PFBA Perfluorobutanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243162 No 2819 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2801 PFBS Perfluorobutanesulfonic acid ND 40.3 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243316 No 2801M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2807 PFDA Perfluorodecanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243250 No 2807 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2808 PFDoA Perfluorododecanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243239 No 2808 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2826 PFEESA Perfluoro(2-ethoxyethane)sulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243085 No 2826 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2802 PFHpA Perfluoroheptanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243305 No 2802 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2829 PFHpS Perfluoroheptanesulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243063 No 2829 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2809 PFHxA Perfluorohexanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243228 No 2809 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2803 PFHxS Perfluorohexanesulfonic acid ND 10 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243294 No 2803M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2825 PFMBA Perfluoro-4-methoxybutanoic acid ND 20.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243096 No 2825 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2823 PFMPA Perfluoro-3-methoxypropanoic acid ND 40.3 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243118 No 2823 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2804 PFNA Perfluorononanoic acid ND 10 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243283 No 2804M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2806 PFOA Perfluorooctanoic acid ND 4.0 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243261 No 2806M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243272 No 2805M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2824 PFPeA Perfluoropentanoic acid ND 101 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243107 No 2824 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2828 PFPeS Perfluoropentanesulfonic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243074 No 2828 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR SOUTH UMPQUA RIVER 02/18/2022 03/29/2022 2812 PFUnA Perfluoroundecanoic acid ND 10.1 2202100-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 2451386 3243217 No 2812 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101650P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021204 4000907 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101650P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021204 4001397 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101650P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021204 4001299 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101650P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021204 4001201 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101650P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021204 4001005 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 02/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101650P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021204 4001103 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 104170P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021202 4000905 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 104170P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021202 4001395 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 104170P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021202 4001297 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 104170P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021202 4001199 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 104170P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021202 4001003 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 05/16/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 104170P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021202 4001101 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 107030P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021203 4000906 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 107030P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021203 4001396 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 107030P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021203 4001298 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 107030P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021203 4001200 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 107030P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021203 4001004 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 08/23/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 107030P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021203 4001102 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 109903P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021172 4000896 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 109903P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021172 4001387 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 109903P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021172 4001288 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 109903P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021172 4001191 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 109903P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021172 4000995 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR SOUTH UMPQUA RIVER 11/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 109903P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12212 3021172 4001093 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS