No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting January 2018.
Serves about 10,949 people (727 connections) with groundwater from its own wells, and buys water from City of Schertz.
From EPA's record for TX0150115. PurityMap is independent of JBSA Randolph.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From January 2018 | Fluoride | 4.9 mg/L | 4.0 mg/L | Resolved |
| From October 2017 | Fluoride | 4.4 mg/L | 4.0 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from July 2024 to January 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 26 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| 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 | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-17 to 2025-01-13 | UCMR5 Analytical Results: JBSA RANDOLPH (TX0150115) |
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 →JBSA Randolph's phone number on EPA record is 210-247-8554. Its mailing address is 2766 HARNEY PATH PMB 354, SAN ANTONIO, TX 78234-2688.
According to EPA's record, JBSA Randolph uses groundwater from its own wells, and buys water from City of Schertz.
EPA's record shows 2 health-based violations for JBSA Randolph in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting January 2018. EPA also lists 2 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in JBSA Randolph's latest lead and copper round, which ended in December 2024, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for JBSA Randolph. Its phone number on EPA record is 210-247-8554. Its mailing address on EPA record is 2766 HARNEY PATH PMB 354, SAN ANTONIO, TX 78234-2688. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.