1 open health-based violation on EPA record.
Serves about 7,502 people (120 connections) with surface water from its own intake.
From EPA's record for CA3410032. PurityMap is independent of Folsom State Prison.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2024 | Lead and copper rule revisions | – | – | Unaddressed |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2025 to August 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 6.8 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| 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 | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-04 to 2025-08-05 | UCMR5 Analytical Results: FOLSOM STATE PRISON (CA3410032) |
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.
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Follow this water →Folsom State Prison's phone number on EPA record is 916-985-2561. Its mailing address is 300 Prison Road, REPRESA, CA 95671.
According to EPA's record, Folsom State Prison uses surface water from its own intake.
EPA's record shows 1 health-based violation for Folsom State Prison in the 10 years to July 9, 2026. EPA's record lists 1 open health-based violation. 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 Folsom State Prison's latest lead and copper round, which ended in December 2024. The federal action level is 15 µg/L.
PurityMap has no verified website for Folsom State Prison. Its phone number on EPA record is 916-985-2561. Its mailing address on EPA record is 300 Prison Road, REPRESA, CA 95671. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.