Rock Springs Waterworks
Published drinking-water records and contacts for Rock Springs Waterworks. System WI1570104. Review sources and dates; not a real-time water assessment.
- System ID
- WI1570104
- State or territory
- WI
- Published population served
- 292
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 21 — 1993-07-01 – 2024-12-31
- Wisconsin DNR public-system PFAS records: 25 — 2023-07-13 – 2023-07-13
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) | 0.00082 mg/L | 2024-07-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.00087 mg/L | 2024-01-01 – 2024-06-30 | 2026Q3 |
| Lead (PB90) | 0.00245 mg/L | 2020-07-01 – 2020-10-31 | 2026Q3 |
| Lead (PB90) | 0.00455 mg/L | 2019-06-01 – 2019-09-30 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2018-07-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0.0027 mg/L | 2018-01-01 – 2018-06-30 | 2026Q3 |
| Copper (CU90) | 1.97 mg/L | 2017-06-01 – 2017-09-30 | 2026Q3 |
| Lead (PB90) | 0.0035 mg/L | 2017-06-01 – 2017-09-30 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| 11CL-PF3OUDS | < 0.659 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| 4:2 FTSA | < 0.623 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| 6:2 FTSA | < 1.82 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| 8:2 FTSA | < 1.19 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| 9CL-PF3ONS | < 0.826 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| ADONA | < 0.404 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| HFPO-DA | < 0.648 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| NFDHA | < 0.749 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFBA | < 0.663 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFBS | < 0.568 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFDA | < 0.589 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
| PFDOA | < 0.656 ng/L | 2023-07-13 | Entry Point / Wisconsin DNR public-system PFAS records |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
7 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) | 2023-07-01 – 2023-07-31 | Resolved | No | 2026Q3 |
| Lead and Copper Rule / OCCT/SOWT Study/Recommendation | 2020-04-01 – — | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique No Certif. Operator | 2018-05-02 – — | Resolved | Yes | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 1991-07-01 – 1991-07-31 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1991-04-01 – 1991-04-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 1991-03-01 – 1991-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1991-01-01 – 1991-01-31 | 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
- Wisconsin DNR public-system PFAS records — last successful check: 2026-10-10
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.