No open EPA violations as of 2026-10-15.
EPA record checked 2026-10-06
From EPA's record for CA3010027. PurityMap is independent of City of Orange.
Every community water system publishes one each year. Your water bill or the utility's website links to it.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.
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31 results are on record. These 5 come first: results above a listed reference, then those closest to a legal limit.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 17 ng/L | 4.0 ng/L federal MCL (2024) | Above EPA's 2024 limit (one sample) | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Lithium | 36.33 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2023-03-14 to 2026-01-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorooctanoic acid (PFOA) | 9.3 ng/L | 4.0 ng/L federal MCL (2024) | Above EPA's 2024 limit (one sample) | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorohexanesulfonic acid (PFHxS) | 10.2 ng/L | 10 ng/L federal MCL (2024) | Above EPA's 2024 limit (one sample) | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Lead (90th percentile) | 2.33 µg/L | 15 µg/L federal action level | Below the listed reference | 2022–2024 monitoring period | Lead & Copper Rule 90th-percentile: CITY OF ORANGE (CA3010027) |
| Perfluorobutanesulfonic acid (PFBS) | 3.3 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 | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorohexanoic acid (PFHxA) | 10.1 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorobutanoic acid (PFBA) | 12.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoropentanoic acid (PFPeA) | 17.7 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| 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 | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| 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 | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| 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 | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| 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 | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| 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 | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2026-04-27 | UCMR5 Analytical Results: CITY OF ORANGE (CA3010027) |
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 choice: Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200), certified for PFOA, PFOS and lead.
| Pick | Product | Certification | Price | Link |
|---|---|---|---|---|
| ★ Best choice | Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200) | Certified for PFOA and PFOS (NSF/ANSI 53, WQA) | $$ | Check price on Amazon |
| Also good | Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M) | Certified for PFOA and PFOS (NSF/ANSI 53, WQA) | $$ | Check price at Aquasana |
| Also good | Aquasana Clean Water Machine Countertop Filter (AQ-CWM2) | Certified for PFOA and PFOS (NSF/ANSI 53, WQA) | $$ | Check price at Aquasana |
★ Best choice: HealthShield™, certified for PFHxS, PFOA and PFOS.
| Pick | Product | Certification | Price | Link |
|---|---|---|---|---|
| ★ Best choice | HealthShield™ | Certified for PFHxS, PFOA and PFOS (NSF/ANSI 53, WQA) | $$$$ | Check price at Aquasana |
| $ Budget pick | iSpring WGB32B-PFKS PFAS & Heavy Metals Whole House FilterUse code REFISPRING at checkout: 10% off your first iSpring order. | Brand lab-tested for PFAS, not independently certified for PFHxS, PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA) and Perfluoropentanoic acid (PFPeA) | $$$ | Check price at iSpring |
Also: lead picks →
Certified filters for lithium →
PurityMap earns a commission from these links. "Best choice" and "Budget pick" go to certified products first; commission never decides them. As an Amazon Associate, PurityMap earns from qualifying purchases. 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 phone number on EPA record is 714-288-2475 and its mailing address is 189 S. Water Street, ORANGE, CA 92866. These details come from the system's EPA record.
PurityMap has no verified website for City of Orange. Its mailing address on EPA record is 189 S. Water Street, ORANGE, CA 92866. Your water bill lists the ways to pay. PurityMap does not take payments.
EPA's records list City of Orange as serving Orange, California. Your water bill names your supplier.
PurityMap's record for City of Orange holds results for 29 PFAS substances. 7 were 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 Orange. The record comes from EPA's SDWIS compliance database.
City of Orange is on EPA record as drawing from surface water.
Start with the hot-or-cold tap check. Where City of Orange reported something related, it's shown below.
Lead at City of Orange: 2.33 µg/L (90th percentile, 2022–2024 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.