No open EPA violations as of 2026-10-15.
EPA record checked 2026-10-06
From EPA's record for WA5303350. PurityMap is independent of City of Auburn.
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31 results are on record. These 5 come first, closest to a legal limit first.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lead (90th percentile) | 2.2 µg/L | 15 µg/L federal action level | Below the listed reference | 2022–2024 monitoring period | Lead & Copper Rule 90th-percentile: Auburn City of (WA5303350) |
| Perfluorobutanesulfonic acid (PFBS) | 4.1 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-11-06 to 2025-11-19 | UCMR5 Analytical Results: Auburn City of (WA5303350) |
0health-based violations in the last 10 years · none open as of 2026-10-15
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit. Meeting a federal limit is a compliance fact, not a health clearance.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Tested your own tap? Read your results →
★ Best available: Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M), the best fit here; nothing in this group is certified yet.
| Pick | Product | Certification | Price | Link |
|---|---|---|---|---|
| ★ Best available | Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M) | Not certified for Perfluorobutanesulfonic acid (PFBS) | $$ | Check price at Aquasana |
| Also good | Aquasana Clean Water Machine Countertop Filter (AQ-CWM2) | Not certified for Perfluorobutanesulfonic acid (PFBS) | $$ | Check price at Aquasana |
| Also good | SmartFlow® Reverse Osmosis | Not certified for Perfluorobutanesulfonic acid (PFBS) | $$$ | Check price at Aquasana |
| Pick | Product | Certification | Price | Link |
|---|---|---|---|---|
| Also good | iSpring RCC7AK Alkaline Reverse Osmosis SystemUse code REFISPRING at checkout: 10% off your first iSpring order. | Brand lab-tested for PFAS, not independently certified for Perfluorobutanesulfonic acid (PFBS) | $$ | Check price at iSpring |
| Also good | iSpring RO5004F Tankless Reverse Osmosis System with UVUse code REFISPRING at checkout: 10% off your first iSpring order. | Brand lab-tested for PFAS, not independently certified for Perfluorobutanesulfonic acid (PFBS) | $$$ | Check price at iSpring |
| Also good | Waterdrop G3P600 Reverse Osmosis System | Not certified for Perfluorobutanesulfonic acid (PFBS) | $$$ | Check price at Waterdrop |
| Also good | Waterdrop G3P800 Tankless Reverse Osmosis System | Not certified for Perfluorobutanesulfonic acid (PFBS) | $$$ | Check price at Waterdrop |
| Also good | Waterdrop X12 Reverse Osmosis System | Brand lab-tested for PFAS, not independently certified for Perfluorobutanesulfonic acid (PFBS) | $$$$ | Check price at Waterdrop |
★ Best available: iSpring WGB32B-PFKS PFAS & Heavy Metals Whole House Filter, the best fit here; nothing in this group is certified yet.
| Pick | Product | Certification | Price | Link |
|---|---|---|---|---|
| ★ Best available | iSpring WGB32B-PFKS PFAS & Heavy Metals Whole House FilterUse code REFISPRING at checkout: 10% off your first iSpring order. | Brand lab-tested for PFAS, not independently certified for Perfluorobutanesulfonic acid (PFBS) | $$$ | Check price at iSpring |
| Also good | HealthShield™ | Not certified for Perfluorobutanesulfonic acid (PFBS) | $$$$ | Check price at Aquasana |
Also: lead picks →
PurityMap earns a commission from these links. "Best choice" and "Budget pick" go to certified products first; commission never decides them. Affiliate disclosure.
Local help
Call to be connected with a local plumbing provider about lead service lines, repiping or fixture replacement.
One email when a new sampling round is published or a result moves across its reference.
Follow this water →Its mailing address is 25 W Main, Auburn, WA 98001. These details come from the system's EPA record.
PurityMap has no verified website for City of Auburn. Its mailing address on EPA record is 25 W Main, Auburn, WA 98001. Your water bill lists the ways to pay. PurityMap does not take payments.
EPA's records list City of Auburn as serving Auburn, Washington. Your water bill names your supplier.
PurityMap's record for City of Auburn holds results for 29 PFAS substances. 1 was detected, and none is above a federal legal limit. Each result links to its source in the city report.
No open EPA violations as of 2026-10-15: that is what EPA's record shows for City of Auburn. The record comes from EPA's SDWIS compliance database.
City of Auburn is on EPA record as drawing from groundwater.
Start with the hot-or-cold tap check. Where City of Auburn reported something related, it's shown below.
Lead at City of Auburn: 2.2 µg/L (90th percentile, 2022–2024 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.