OHA Drinking Water Services
OR41
PWS ID: 00149 ---- BROOKINGS, 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 CHETCO RIVER (I.G.) GW Permanent 2 samples 1/1/2023 12/31/2024 1/24/2024 7/23/2024 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 CHETCO RIVER (I.G.) 01/24/2024 0 0 112232P
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 0 0 118947P


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 CHETCO RIVER (I.G.) 01/24/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 112232P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021231 4000307 Yes 2816M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 01/24/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 112232P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021231 4000792 Yes 2801M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 01/24/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 112232P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021231 4000695 Yes 2803M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 01/24/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 112232P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021231 4000598 Yes 2804M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 01/24/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 112232P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021231 4000404 Yes 2806M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 01/24/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 112232P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021231 4000501 Yes 2805M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 118947P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021232 4000308 Yes 2816M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 118947P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021232 4000793 Yes 2801M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 118947P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021232 4000696 Yes 2803M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 118947P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021232 4000599 Yes 2804M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 118947P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021232 4000405 Yes 2806M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CHETCO RIVER (I.G.) 07/23/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 118947P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12471 3021232 4000502 Yes 2805M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS


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