OHA Drinking Water Services
OR41
PWS ID: 00846 ---- SUNRIVER WATER LLC/SUNRIVER UTILITIES
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-C EP for WELL #9 (PRIMARY) GW Permanent 2 samples 1/1/2023 12/31/2023 2/20/2023 8/21/2023 N/A N/A
EP-E EP FOR WELL #14 (L84233) GW Permanent 2 samples 1/1/2023 12/31/2023 2/20/2023 8/21/2023 N/A N/A
EP-F EP FOR NORTH RESERVIOR WELL GW Permanent 2 samples 1/1/2023 12/31/2023 3/22/2023 8/21/2023 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-E EP FOR WELL #14 (L84233) 02/20/2023 0 0 101647P
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 2 0 107027P
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 0 0 101649P
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 0 0 107028P
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 0 0 107029P
Yes EP-C EP for WELL #9 (PRIMARY) 02/20/2023 0 0 101648P


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-C EP for WELL #9 (PRIMARY) 02/20/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101648P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021189 4000268 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 02/20/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101648P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021189 4000753 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 02/20/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101648P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021189 4000656 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 02/20/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101648P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021189 4000559 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 02/20/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101648P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021189 4000365 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 02/20/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101648P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021189 4000462 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 107028P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021186 4000265 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 107028P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021186 4000750 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 107028P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021186 4000653 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 107028P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021186 4000556 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 107028P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021186 4000362 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-C EP for WELL #9 (PRIMARY) 08/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 107028P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 12812 3021186 4000459 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 02/20/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101647P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021188 4000267 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 02/20/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101647P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021188 4000752 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 02/20/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101647P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021188 4000655 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 02/20/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101647P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021188 4000558 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 02/20/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101647P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021188 4000364 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 02/20/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101647P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021188 4000461 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 107027P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021185 4000264 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 107027P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021185 4000749 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid 1.10 10 1.00 107027P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021185 4000652 Yes 2803M D 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 107027P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021185 4000555 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 107027P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021185 4000361 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-E EP FOR WELL #14 (L84233) 08/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid 1.40 4.0 1.30 107027P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 21644 3021185 4000458 Yes 2805M D 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 101649P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021190 4000269 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 101649P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021190 4000754 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 101649P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021190 4000657 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 101649P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021190 4000560 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 101649P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021190 4000366 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 03/22/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 101649P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021190 4000463 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 09/04/2025 2816 HFPO-DA Hexafluoropropylene oxide dimer acid ND 10 1.70 107029P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021187 4000266 Yes 2816M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 09/04/2025 2801 PFBS Perfluorobutanesulfonic acid ND 1.00 107029P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021187 4000751 Yes 2801M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 09/04/2025 2803 PFHxS Perfluorohexanesulfonic acid ND 10 1.00 107029P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021187 4000654 Yes 2803M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 09/04/2025 2804 PFNA Perfluorononanoic acid ND 10 1.30 107029P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021187 4000557 Yes 2804M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 09/04/2025 2806 PFOA Perfluorooctanoic acid ND 4.0 1.30 107029P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021187 4000363 Yes 2806M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS
Yes EP-F EP FOR NORTH RESERVIOR WELL 08/21/2023 09/04/2025 2805 PFOS Perfluorooctanesulfonic acid ND 4.0 1.30 107029P 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS 25858 3021187 4000460 Yes 2805M N 4047 WECK LABORATORIES, INC. EPA 533 PFAS ISOTOPE DILUTION AEX SPE LC/MS/MS