No health-based violations on EPA record since 2016.
Serves about 3,186 people (1,296 connections) with surface water bought from South Texas Water Authority.
From EPA's record for TX1780002. PurityMap is independent of City of Bishop.
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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 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 81 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorobutanoic acid (PFBA) | 6.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| 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 | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-18 | UCMR5 Analytical Results: CITY OF BISHOP (TX1780002) |
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 Bishop's phone number on EPA record is 361-584-2567. Its mailing address is PO BOX 356, BISHOP, TX 78343-0356.
According to EPA's record, City of Bishop uses surface water bought from South Texas Water Authority.
No health-based violations on EPA record since 2016. 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 City of Bishop's latest lead and copper round, which ended in December 2025, was 1.64 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of Bishop. Its phone number on EPA record is 361-584-2567. Its mailing address on EPA record is PO BOX 356, BISHOP, TX 78343-0356. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.