OHA Drinking Water Services
OR41
PWS ID: 00914 ---- UMATILLA, CITY OF
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 GOLF COURSE AND PORT WELLS GW Permanent 2 samples 1/1/2023 7/17/2023 N/A N/A
EP-B EP FOR INTERTIE WELL GW Permanent 2 samples 1/1/2023 12/31/2023 1/9/2023 7/17/2023 N/A N/A
EP-C EP FOR MCFARLAND WELL GW Permanent 2 samples 1/1/2023 12/31/2023 1/11/2023 7/17/2023 N/A N/A
For each active entry point served by groundwater, collect 2 consecutive samples within a 12-month period with samples collected 5 to 7 months apart.


Sample Summaries
For compliance? EP ID Entry point name Sample date # Detections # MCL
exceedances		 Sample ID
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 0 0 101767R
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 0 0 106056P
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 0 0 100535P
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 0 0 106057P
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 0 0 100536P
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 0 0 106058P


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
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101767R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021122 4000847 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101767R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021122 4001337 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101767R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021122 4001239 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101767R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021122 4001141 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101767R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021122 4000945 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 03/15/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101767R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021122 4001043 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 106056P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021123 4000848 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 106056P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021123 4001338 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 106056P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021123 4001240 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 106056P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021123 4001142 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 106056P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021123 4000946 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR GOLF COURSE AND PORT WELLS 07/17/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 106056P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 15594 3021123 4001044 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 100535P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021120 4000845 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 100535P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021120 4001335 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 100535P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021120 4001237 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 100535P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021120 4001139 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 100535P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021120 4000943 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 01/09/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 100535P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021120 4001041 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 106057P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021124 4000849 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 106057P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021124 4001339 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 106057P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021124 4001241 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 106057P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021124 4001143 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 106057P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021124 4000947 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR INTERTIE WELL 07/17/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 106057P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12843 3021124 4001045 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 100536P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021121 4000846 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 100536P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021121 4001336 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 100536P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021121 4001238 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 100536P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021121 4001140 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 100536P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021121 4000944 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 01/11/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 100536P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021121 4001042 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 106058P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021125 4000850 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 106058P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021125 4001340 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 106058P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021125 4001242 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 106058P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021125 4001144 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 106058P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021125 4000948 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR MCFARLAND WELL 07/17/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 106058P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12143 3021125 4001046 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS