Nps-Grant Grove
Published drinking-water records and contacts for Nps-Grant Grove. System CA1010501. Review sources and dates; not a real-time water assessment.
- System ID
- CA1010501
- State or territory
- CA
- Published population served
- 2950
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 75 — 1993-01-01 – 2026-12-31
- California DDW laboratory results: 8 — 2026-01-07 – 2026-01-21
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 mg/L | 2024-01-01 – 2026-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2023-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2022-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2021-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2021-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2020-07-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.0013 mg/L | 2020-01-01 – 2020-06-30 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2019-07-01 – 2019-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| COMBINED RADIUM (-226 & -228) | < 1.340000000 PCI/L | 2026-01-21 | GRANT GROVE - 400 FT WELL - RAW / California DDW laboratory results |
| RADIUM-226 | < 0.461000000 PCI/L | 2026-01-21 | GRANT GROVE - ARTESIAN WELL - RAW / California DDW laboratory results |
| RADIUM-226 | < 0.461000000 PCI/L | 2026-01-21 | GRANT GROVE - 400 FT WELL - RAW / California DDW laboratory results |
| RADIUM-228 | < 1.340000000 PCI/L | 2026-01-21 | GRANT GROVE - 400 FT WELL - RAW / California DDW laboratory results |
| RADIUM-228 | < 0.049100000 PCI/L | 2026-01-21 | GRANT GROVE - ARTESIAN WELL - RAW / California DDW laboratory results |
| COMBINED RADIUM (-226 & -228) | < 0.461000000 PCI/L | 2026-01-21 | GRANT GROVE - ARTESIAN WELL - RAW / California DDW laboratory results |
| NITRATE | < 0.400000000 MG/L | 2026-01-07 | GRANT GROVE - 400 FT WELL - RAW / California DDW laboratory results |
| NITRATE | < 0.400000000 MG/L | 2026-01-07 | GRANT GROVE - ARTESIAN WELL - 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 |
|---|---|---|---|---|
| Lead and Copper Rule Revisions / Notification, Known or Potential LSL | 2025-07-02 – — | Unaddressed | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2018-01-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2017-07-01 – — | 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)
Avusuglo-Ahia, Bright: 559-565-3749
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.