No health-based violations on EPA record since 2016.
Serves about 8,917 people (8,274 connections) with groundwater from its own wells, and buys water from Fort Bend County MUD 30, Mission Bend MUD 2, Mission Bend MUD 1 and 1 more.
From EPA's record for TX1010782. PurityMap is independent of Chelford City MUD.
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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 August 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 22.8 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| 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 | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-10 to 2023-08-07 | UCMR5 Analytical Results: CHELFORD CITY MUD (TX1010782) |
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 →Chelford City MUD's phone number on EPA record is 713-651-0111. Its mailing address is 9 GREENWAY PLZ STE 1100, HOUSTON, TX 77046-0905.
According to EPA's record, Chelford City MUD uses groundwater from its own wells, and buys water from Fort Bend County MUD 30, Mission Bend MUD 2, Mission Bend MUD 1 and 1 more.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Chelford City MUD's latest lead and copper round, which ended in December 2024, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Chelford City MUD. Its phone number on EPA record is 713-651-0111. Its mailing address on EPA record is 9 GREENWAY PLZ STE 1100, HOUSTON, TX 77046-0905. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.