No health-based violations on EPA record since 2016.
Serves about 8,244 people (2,438 connections) with groundwater from its own wells.
From EPA's record for CA5210001. PurityMap is independent of City of Corning.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from May 2023 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 10.2 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 | 2023-05-02 to 2023-11-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| 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 | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| 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 | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| 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 | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| 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 | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| 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 | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-02 to 2024-08-07 | UCMR5 Analytical Results: CITY OF CORNING (CA5210001) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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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.
Get PurityMap updates about this water system.
Follow this water →City of Corning's phone number on EPA record is 530-824-7029. Its mailing address is 794 3rd Street, CORNING, CA 96021.
According to EPA's record, City of Corning uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in City of Corning's latest lead and copper round, which ended in December 2025, was 1.08 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of Corning. Its phone number on EPA record is 530-824-7029. Its mailing address on EPA record is 794 3rd Street, CORNING, CA 96021. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.