No health-based violations on EPA record since 2016.
Serves about 5,841 people (1,835 connections) with surface water bought from Stockton East Water District.
From EPA's record for CA3910010. PurityMap is independent of San Joaquin County.
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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 January 2024 to October 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| 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 | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-09 to 2024-10-09 | UCMR5 Analytical Results: SAN JOAQUIN COUNTY - LINCOLN VILLAGE (CA3910010) |
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 →San Joaquin County's phone number on EPA record is 209-468-3090. Its mailing address is 1702 E. Scotts Ave., STOCKTON, CA 95205.
According to EPA's record, San Joaquin County uses surface water bought from Stockton East Water District.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in San Joaquin County's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for San Joaquin County. Its phone number on EPA record is 209-468-3090. Its mailing address on EPA record is 1702 E. Scotts Ave., STOCKTON, CA 95205. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.