Nps - Death Valley, Cow Creek/Nevares
Published drinking-water records and contacts for Nps - Death Valley, Cow Creek/Nevares. System CA1410503. Review sources and dates; not a real-time water assessment.
- System ID
- CA1410503
- State or territory
- CA
- Published population served
- 88
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 12 — 2000-01-01 – 2026-12-31
- California DDW laboratory results: 221 — 2026-01-04 – 2026-06-07
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) | 0.053 mg/L | 2024-01-01 – 2026-12-31 | 2026Q3 |
| Lead (PB90) | 0.0015 mg/L | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.0034 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0.0073 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2003-01-01 – 2005-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| FLUORIDE | < 0.300000000 MG/L | 2026-06-07 | COW CREEK RO PERMEATE / California DDW laboratory results |
| FLUORIDE | 2.8 MG/L | 2026-06-07 | NAVARES SPRING - RAW / California DDW laboratory results |
| FLUORIDE | 1.1 MG/L | 2026-06-07 | COW CREEK RO BLENDED / California DDW laboratory results |
| FLUORIDE | 1.1 MG/L | 2026-05-10 | COW CREEK RO BLENDED / California DDW laboratory results |
| FLUORIDE | 2.8 MG/L | 2026-05-10 | NAVARES SPRING - RAW / California DDW laboratory results |
| FLUORIDE | < 0.300000000 MG/L | 2026-05-10 | COW CREEK RO PERMEATE / California DDW laboratory results |
| FLUORIDE | 1.2 MG/L | 2026-04-12 | COW CREEK RO BLENDED / California DDW laboratory results |
| FLUORIDE | 0.5 MG/L | 2026-04-12 | COW CREEK RO PERMEATE / California DDW laboratory results |
| FLUORIDE | 2.8 MG/L | 2026-04-12 | NAVARES SPRING - RAW / California DDW laboratory results |
| FLUORIDE | 1.1 MG/L | 2026-03-08 | COW CREEK RO BLENDED / California DDW laboratory results |
| FLUORIDE | < 0.300000000 MG/L | 2026-03-08 | COW CREEK RO PERMEATE / California DDW laboratory results |
| FLUORIDE | 2.8 MG/L | 2026-03-08 | NAVARES SPRING - RAW / California DDW laboratory results |
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
3 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 |
|---|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2025-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2022-10-01 – — | 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
- California DDW laboratory results — last successful check: 2026-10-18
Administrative contact (EPA filing)
Aillaud, Brian: 760-786-3295
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.