Grenville
Published drinking-water records and contacts for Grenville. System SD4600146. Review sources and dates; not a real-time water assessment.
- System ID
- SD4600146
- State or territory
- SD
- Published population served
- 48
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 13 — 1993-07-01 – 2023-12-31
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0.001 mg/L | 2023-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2021-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2018-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2015-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2011-01-01 – 2011-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2008-01-01 – 2008-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2005-01-01 – 2005-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2002-01-01 – 2002-12-31 | 2026Q3 |
Published compliance history
22 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2025-08-01 – 2025-08-31 | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2020-10-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2017-10-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Notification, Public | 2001-03-10 – 2001-04-09 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 2000-05-16 – 2000-06-15 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1997-10-13 – 1997-11-12 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1997-08-01 – 1997-08-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1997-04-13 – 1997-05-12 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1997-02-01 – 1997-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1996-10-01 – 1996-10-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1996-06-16 – 1996-07-15 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1996-06-01 – 1996-06-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1996-05-01 – 1996-05-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Minor (TCR) | 1996-04-01 – 1996-04-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1995-08-01 – 1995-08-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1994-11-01 – 1994-11-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 1993-09-01 – 1993-09-30 | Archived | Yes | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1992-04-02 – 1992-05-01 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1992-01-01 – 1992-01-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1991-02-08 – 1991-03-07 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Administrative contact (EPA filing)
Grenville: 6054864540
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.