Sienna Regional MUD
Published drinking-water records and contacts for Sienna Regional MUD. System TX0790373. Review sources and dates; not a real-time water assessment.
- System ID
- TX0790373
- State or territory
- TX
- Published population served
- 0
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 3 — 2014-01-01 – 2016-12-31
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) | 0.1 mg/L | 2016-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.0032 mg/L | 2015-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2014-01-01 – 2014-12-31 | 2026Q3 |
Published compliance history
1 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 |
|---|---|---|---|---|
| Inorganic Chemicals / Monitoring, Regular | 2020-04-01 – 2020-06-30 | Resolved | 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)
Bowles, Carl, S: 281-500-6050
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.