OHA Drinking Water Services
OR41
PWS ID: 90159 ---- KLAMATH CO PROJECT HOMEFRONT
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 WELL 09/23/2025 0 0 2509320-01

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
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2813 11Cl-PF3OUdS 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006265 Yes 2813 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2821 4:2FTS 1H,1H, 2H, 2H-Perfluorohexane sulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006169 Yes 2821 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2820 6:2FTS 1H,1H, 2H, 2H-Perfluorooctane sulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006185 Yes 2820 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2822 8:2FTS 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006153 Yes 2822 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2814 9Cl-PF3ONS 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acd ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006249 Yes 2814 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2815 ADONA 4,8-Dioxa-3H-perfluorononanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006233 Yes 2815 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006217 Yes 2816M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2827 NFDHA Nonafluoro-3,6-dioxaheptanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006073 Yes 2827 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2819 PFBA Perfluorobutanoic acid ND 4.98 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006201 Yes 2819 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006425 Yes 2801M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2807 PFDA Perfluorodecanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006329 Yes 2807 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2808 PFDoA Perfluorododecanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006313 Yes 2808 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2826 PFEESA Perfluoro(2-ethoxyethane)sulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006089 Yes 2826 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2802 PFHpA Perfluoroheptanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006409 Yes 2802 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2829 PFHpS Perfluoroheptanesulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006041 Yes 2829 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2809 PFHxA Perfluorohexanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006297 Yes 2809 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006393 Yes 2803M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2825 PFMBA Perfluoro-4-methoxybutanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006105 Yes 2825 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2823 PFMPA Perfluoro-3-methoxypropanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006137 Yes 2823 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2804 PFNA Perfluorononanoic acid ND 10 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006377 Yes 2804M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006345 Yes 2806M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006361 Yes 2805M N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2824 PFPeA Perfluoropentanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006121 Yes 2824 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2828 PFPeS Perfluoropentanesulfonic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006057 Yes 2828 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP for WELL 09/23/2025 12/16/2025 2812 PFUnA Perfluoroundecanoic acid ND 1.99 2509320-01 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 13605 3026306 4006281 Yes 2812 N 18 DEQ LABORATORY DIVISION 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS


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