No health-based violations on EPA record since 2016.
Serves about 7,115 people (2,600 connections) with groundwater from its own wells.
From EPA's record for CA5710005. PurityMap is independent of City of Winters.
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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 February 2023 to February 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 27 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 | 2023-02-07 to 2023-12-11 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorononanoic acid (PFNA) | 4.2 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 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 | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 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 | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 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 | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 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 | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 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 | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2023-12-11 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2023-12-11 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| 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 | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2023-12-11 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2023-12-11 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-07 to 2024-02-27 | UCMR5 Analytical Results: CITY OF WINTERS (CA5710005) |
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 Winters's phone number on EPA record is 530-794-6760. Its mailing address is 318 1st St,, WINTERS, CA 95694.
According to EPA's record, City of Winters 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.
Lead was not detected at the 90th percentile of tap samples in City of Winters's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.
PurityMap has no verified website for City of Winters. Its phone number on EPA record is 530-794-6760. Its mailing address on EPA record is 318 1st St,, WINTERS, CA 95694. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.