Ladwp - Big Pine
Published drinking-water records and contacts for Ladwp - Big Pine. System CA1410004. Review sources and dates; not a real-time water assessment.
- System ID
- CA1410004
- State or territory
- CA
- Published population served
- 0
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 10 — 1996-01-01 – 2011-12-31
- California DDW laboratory results: 258 — 2026-05-05 – 2026-05-12
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 | 2009-01-01 – 2011-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2006-01-01 – 2008-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2003-01-01 – 2005-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 1999-01-01 – 2001-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 1997-01-01 – 1999-12-31 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 1996-01-01 – 1998-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 1997-01-01 – 1997-12-31 | 2026Q3 |
| Lead (PB90) | = 0.25 mg/L | 1997-01-01 – 1997-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| ALKALINITY, BICARBONATE | 90.8 MG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| 1,2-DIBROMO-3-CHLOROPROPANE | < 0.010000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| TRICHLOROTRIFLUOROETHANE | < 1.000000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| CONDUCTIVITY @ 25 C UMHOS/CM | 217 UMHO/CM | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| AROCLOR 1016 | < 0.500000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 5.900000000 MG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| ANTIMONY, TOTAL | < 2.000000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| ENDRIN | < 0.100000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| CARBARYL | < 2.000000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| DINOSEB | < 2.000000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| HEXACHLOROCYCLOPENTADIENE | < 1.000000000 UG/L | 2026-05-12 | WELL 02 = 352 / California DDW laboratory results |
| DCPA MONO/DI-ACID DEGRADATES | < 1.000000000 UG/L | 2026-05-12 | WELL 02 = 352 / 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
0 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
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)
Leung, Jonathan: 800-342-5397
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.