OHA Drinking Water Services
OR41
PWS ID: 00851 ---- SWEET HOME, 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-B EP FOR FOSTER LAKE DAM SW Permanent 4 quarters 1/1/2023 3/12/2024 6/19/2024 9/18/2024
For each active entry point, 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
Yes EP-B EP FOR FOSTER LAKE DAM 03/12/2024 0 0 114711P
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 0 0 117415P
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 0 0 121078P


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-B EP FOR FOSTER LAKE DAM 03/12/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 114711P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021156 4000887 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 03/12/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 114711P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021156 4001371 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 03/12/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 114711P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021156 4001272 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 03/12/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 114711P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021156 4001175 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 03/12/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 114711P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021156 4000985 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 03/12/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 114711P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021156 4001083 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 117415P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021164 4000890 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 117415P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021164 4001378 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 117415P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021164 4001282 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 117415P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021164 4001185 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 117415P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021164 4000988 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 06/19/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 117415P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021164 4001087 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 121078P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021163 4000888 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 121078P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021163 4001377 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 121078P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021163 4001280 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 121078P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021163 4001182 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 121078P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021163 4000986 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-B EP FOR FOSTER LAKE DAM 09/18/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 121078P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 23140 3021163 4001084 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS


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