Hermosa Water Users Association
Published drinking-water records and contacts for Hermosa Water Users Association. System SD4602180. Review sources and dates; not a real-time water assessment.
- System ID
- SD4602180
- State or territory
- SD
- Published population served
- 108
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 15 — 1999-07-01 – 2025-12-31
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) | 0.002 mg/L | 2025-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2022-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2020-07-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2019-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.004 mg/L | 2016-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2013-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2010-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2007-01-01 – 2007-12-31 | 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) | 2026-05-01 – 2026-05-31 | Archived | No | 2026Q3 |
| Lead and Copper Rule / Initial Tap Sampling for Pb and Cu | 2021-07-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Initial Tap Sampling for Pb and Cu | 2020-07-01 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Treatment Technique, Level 1 Assessment (RTCR) | 2019-10-05 – — | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2019-07-01 – 2019-07-31 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Maximum Contaminant Level Violation, E. coli (RTCR) | 2017-08-01 – 2017-08-31 | Resolved | Yes | 2026Q3 |
| Total Coliform Rule / Notification, Public | 2000-01-17 – 2000-02-16 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-12-13 – 2000-01-12 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-11-14 – 1999-12-13 | Archived | No | 2026Q3 |
| Lead and Copper Rule / Notification, Public | 1999-11-14 – 1999-12-13 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1999-11-01 – 1999-11-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-10-10 – 1999-11-09 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-10-09 – 1999-11-08 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1999-10-01 – 1999-10-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1999-09-01 – 1999-09-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-08-14 – 1999-09-13 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 1999-08-01 – 1999-08-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-07-10 – 1999-08-09 | Archived | No | 2026Q3 |
| Total Coliform Rule / Notification, Public | 1999-05-15 – 1999-06-14 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1999-05-01 – 1999-05-31 | 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
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.