No health-based violations on EPA record since 2016.
Serves about 5,982 people (2,084 connections) with surface water bought from Northwest Harris County MUD 22, Bammel Utility District, Northwest Harris County MUD 21 and 2 more.
From EPA's record for TX1011705. PurityMap is independent of Harris County MUD 16.
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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 2024 to January 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorohexanoic acid (PFHxA) | 4.2 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorobutanoic acid (PFBA) | 7 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2024-11-04 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2024-11-04 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2024-11-04 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| 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 | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2024-11-04 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2024-11-04 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-14 to 2025-01-07 | UCMR5 Analytical Results: HARRIS COUNTY MUD 16 (TX1011705) |
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 →Harris County MUD 16's phone number on EPA record is 713-951-0800. Its mailing address is 10000 MEMORIAL DR STE 260, HOUSTON, TX 77024-3430.
According to EPA's record, Harris County MUD 16 uses surface water bought from Northwest Harris County MUD 22, Bammel Utility District, Northwest Harris County MUD 21 and 2 more.
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 Harris County MUD 16'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 Harris County MUD 16. Its phone number on EPA record is 713-951-0800. Its mailing address on EPA record is 10000 MEMORIAL DR STE 260, HOUSTON, TX 77024-3430. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.