OHA Drinking Water Services
OR41
PWS ID: 05246 ---- PGE BEAVER GENERATING STATION
PFAS Sample Results

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Sample Summaries
For Compliance? Facility ID Facility Name Sample Date # Detections # MCL
Exceedances		 Sample ID
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 0 0 K2511834-001-P,
K2511834-002-P
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 0 0 2201061-01,
2201061-01RE1

Sample Results
For Compliance? Facility ID
Facility 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 COLUMBIA RIVER 01/11/2022 02/18/2022 2819 PFBA Perfluorobutanoic acid ND 10.6 2201061-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438593 3225973 No 2819 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2825 PFMBA Perfluoro-4-methoxybutanoic acid ND 21.1 2201061-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438593 3225865 No 2825 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2823 PFMPA Perfluoro-3-methoxypropanoic acid ND 42.2 2201061-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438593 3225901 No 2823 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2824 PFPeA Perfluoropentanoic acid ND 106 2201061-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438593 3225883 No 2824 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2813 11Cl-PF3OUdS 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226045 No 2813 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2821 4:2FTS 1H,1H, 2H, 2H-Perfluorohexane sulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225937 No 2821 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2820 6:2FTS 1H,1H, 2H, 2H-Perfluorooctane sulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225955 No 2820 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2822 8:2FTS 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225919 No 2822 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2814 9Cl-PF3ONS 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acd ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226027 No 2814 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2815 ADONA 4,8-Dioxa-3H-perfluorononanoic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226009 No 2815 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 106 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225991 No 2816M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2801 PFBS Perfluorobutanesulfonic acid ND 42.2 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226225 No 2801M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2807 PFDA Perfluorodecanoic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226117 No 2807 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2808 PFDoA Perfluorododecanoic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226099 No 2808 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2826 PFEESA Perfluoro(2-ethoxyethane)sulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225847 No 2826 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2802 PFHpA Perfluoroheptanoic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226207 No 2802 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2829 PFHpS Perfluoroheptanesulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225811 No 2829 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2809 PFHxA Perfluorohexanoic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226081 No 2809 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2803 PFHxS Perfluorohexanesulfonic acid ND 10 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226189 No 2803M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2804 PFNA Perfluorononanoic acid ND 10 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226171 No 2804M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2806 PFOA Perfluorooctanoic acid ND 4.0 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226135 No 2806M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226153 No 2805M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2828 PFPeS Perfluoropentanesulfonic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3225829 No 2828 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
No EP-A EP FOR COLUMBIA RIVER 01/11/2022 02/18/2022 2812 PFUnA Perfluoroundecanoic acid ND 10.6 2201061-01RE1 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 2438594 3226063 No 2812 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.00 K2511834-001-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041761 4030434 Yes 2816M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 K2511834-001-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041761 4030519 Yes 2801M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 K2511834-001-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041761 4030502 Yes 2803M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2804 PFNA Perfluorononanoic acid ND 10 1.00 K2511834-001-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041761 4030485 Yes 2804M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2806 PFOA Perfluorooctanoic acid ND 4.0 1.00 K2511834-001-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041761 4030451 Yes 2806M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.00 K2511834-001-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041761 4030468 Yes 2805M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.00 K2511834-002-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041762 4030435 Yes 2816M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 K2511834-002-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041762 4030520 Yes 2801M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 K2511834-002-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041762 4030503 Yes 2803M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2804 PFNA Perfluorononanoic acid ND 10 1.00 K2511834-002-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041762 4030486 Yes 2804M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2806 PFOA Perfluorooctanoic acid ND 4.0 1.00 K2511834-002-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041762 4030452 Yes 2806M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR COLUMBIA RIVER 11/24/2025 01/07/2026 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.00 K2511834-002-P WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12283 3041762 4030469 Yes 2805M N WA100010 ALS ENVIRONMENTAL - KELSO 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS


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