No health-based violations on EPA record since 2016.
Serves about 3,633 people (1,430 connections) with groundwater bought from Minnehaha Community Water Corp.
From EPA's record for SD4600105. PurityMap is independent of Dell Rapids.
Are you this utility? Correct this listing →
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 April 2025 to October 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 41.4 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| 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 | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-04-14 to 2025-10-20 | UCMR5 Analytical Results: DELL RAPIDS (SD4600105) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
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 →Dell Rapids's phone number on EPA record is 6053401670. Its mailing address is PO BOX 10, DELL RAPIDS, SD 57022.
According to EPA's record, Dell Rapids uses groundwater bought from Minnehaha Community Water Corp.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Dell Rapids's latest lead and copper round, which ended in December 2023, was 2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Dell Rapids. Its phone number on EPA record is 6053401670. Its mailing address on EPA record is PO BOX 10, DELL RAPIDS, SD 57022. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.