OHA Drinking Water Services
OR41
PWS ID: 00624 ---- PHILOMATH PUBLIC WORKS
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 MARY'S RIVER SW Permanent 4 quarters 1/1/2023 2/21/2023 8/22/2023 11/20/2023
EP-B EP FOR 11TH STREET WELL GW Seasonal 2 samples 1/1/2023 N/A N/A
EP-C EP FOR CORVALLIS (ROCK CREEK) SW Seasonal
(Purchased)		 Not required
For each active entry point served by surface water, collect 4 consecutive quarters of samples within a 12-month period with samples collected 2 to 4 months apart.
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.
For seasonal groundwater entry points in use and providing water to water users 4 months or less a year, collect 1 sample anytime within the 4-month operating period.
For seasonal groundwater entry points in use and providing water to water users 5 or more months a year, collect 2 samples 5 months apart.
Entry points served by purchased water do not have to be monitored for PFAS. Finished drinking water that is provided through a system interconnection is only required to be monitored for by the seller or wholesaler.


Sample Summaries
For compliance? EP ID Entry point name Sample date # Detections # MCL
exceedances		 Sample ID
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 0 0 109900P
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 0 0 107023P
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 0 0 109420R
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 0 0 107024P
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 0 0 109901P
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 0 0 101644P
Yes EP-A EP FOR MARY'S RIVER 02/21/2023 0 0 101643P
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 0 0 109421R


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 MARY'S RIVER 02/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101643P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021193 4000272 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 02/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101643P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021193 4000757 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 02/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101643P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021193 4000660 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 02/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101643P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021193 4000563 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 02/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101643P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021193 4000369 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 02/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101643P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021193 4000466 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 107023P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021191 4000270 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 107023P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021191 4000755 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 107023P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021191 4000658 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 107023P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021191 4000561 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 107023P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021191 4000367 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 08/22/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 107023P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021191 4000464 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 109420R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021092 4000234 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 109420R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021092 4000720 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 109420R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021092 4000622 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 109420R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021092 4000526 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 109420R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021092 4000332 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 10/16/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 109420R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021092 4000429 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 109900P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021094 4000236 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 109900P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021094 4000722 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 109900P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021094 4000624 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 109900P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021094 4000528 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 109900P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021094 4000334 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-A EP FOR MARY'S RIVER 11/20/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 109900P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 17338 3021094 4000431 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101644P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021194 4000273 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101644P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021194 4000758 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101644P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021194 4000661 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101644P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021194 4000564 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101644P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021194 4000370 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 02/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101644P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021194 4000467 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 107024P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021192 4000271 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 107024P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021192 4000756 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 107024P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021192 4000659 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 107024P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021192 4000562 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 107024P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021192 4000368 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 08/22/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 107024P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021192 4000465 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 109421R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021093 4000235 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 109421R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021093 4000721 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 109421R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021093 4000623 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 109421R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021093 4000527 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 109421R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021093 4000333 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 10/16/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 109421R 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021093 4000430 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 109901P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021095 4000237 Yes 2816M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 109901P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021095 4000723 Yes 2801M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 109901P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021095 4000625 Yes 2803M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 109901P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021095 4000529 Yes 2804M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 109901P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021095 4000335 Yes 2806M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP FOR CORVALLIS (ROCK CREEK) 11/20/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 109901P 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 16765 3021095 4000432 Yes 2805M N 4034 EUROFINS EATON ANALYTICAL EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS


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