OHA Drinking Water Services
OR41
PWS ID: 00055 ---- ASTORIA, 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 CREEKS AND MIDDLE LAKE SW Permanent 4 quarters 1/1/2023 4/23/2024 7/23/2024 10/21/2024
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-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 0 0 116070R
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 0 0 118945P
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 0 0 122056P
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 04/23/2024 0 0 115868P


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 CREEKS AND MIDDLE LAKE 04/23/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 115868P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021272 4000833 Yes 2816M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 04/23/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 115868P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021272 4001323 Yes 2801M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 04/23/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 115868P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021272 4001225 Yes 2803M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 04/23/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 115868P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021272 4001127 Yes 2804M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 04/23/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 115868P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021272 4000931 Yes 2806M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 04/23/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 115868P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021272 4001029 Yes 2805M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 116070R 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021273 4000834 Yes 2816M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 116070R 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021273 4001324 Yes 2801M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 116070R 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021273 4001226 Yes 2803M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 116070R 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021273 4001128 Yes 2804M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 116070R 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021273 4000932 Yes 2806M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 03/26/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 116070R 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021273 4001030 Yes 2805M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 118945P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021274 4000835 Yes 2816M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 118945P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021274 4001325 Yes 2801M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 118945P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021274 4001227 Yes 2803M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 118945P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021274 4001129 Yes 2804M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 118945P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021274 4000933 Yes 2806M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 07/23/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 118945P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021274 4001031 Yes 2805M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 122056P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021271 4000832 Yes 2816M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 122056P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021271 4001322 Yes 2801M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 122056P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021271 4001224 Yes 2803M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 122056P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021271 4001126 Yes 2804M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 122056P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021271 4000930 Yes 2806M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR CREEKS AND MIDDLE LAKE 10/21/2024 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 122056P 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12301 3021271 4001028 Yes 2805M N 4035 BABCOCK LABORTORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS