No health-based violations on EPA record since 2016.
Serves about 8,231 people (2,832 connections) with groundwater from its own wells, and buys water from Rural Water System #1 and Lewis and Clark Regional Water System.
From EPA's record for IA8486053. PurityMap is independent of Sioux Center Municipal Water Department.
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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 2025 to August 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 77 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| 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 | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-03 to 2025-08-05 | UCMR5 Analytical Results: SIOUX CENTER MUNICIPAL WATER DEPARTMENT (IA8486053) |
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 →Sioux Center Municipal Water Department's phone number on EPA record is 712-722-0761. Its mailing address is ATTN HARLAN KRUID WATER SUPT, 335 1ST AVE NW, SIOUX CENTER, IA 51250.
According to EPA's record, Sioux Center Municipal Water Department uses groundwater from its own wells, and buys water from Rural Water System #1 and Lewis and Clark Regional Water System.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Sioux Center Municipal Water Department's latest lead and copper round, which ended in December 2025, was 4.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Sioux Center Municipal Water Department. Its phone number on EPA record is 712-722-0761. Its mailing address on EPA record is ATTN HARLAN KRUID WATER SUPT, 335 1ST AVE NW, SIOUX CENTER, IA 51250. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.