Sierra Csa #5, Sierra Brooks
Published drinking-water records and contacts for Sierra Csa #5, Sierra Brooks. System CA4600009. Review sources and dates; not a real-time water assessment.
- System ID
- CA4600009
- State or territory
- CA
- Published population served
- 726
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 13 — 1995-01-01 – 2024-12-31
- California DDW laboratory results: 49 — 2026-03-17 – 2026-05-26
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 | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2019-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2013-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0.0015 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2005-01-01 – 2005-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 1999-01-01 – 2001-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| CALCIUM | 19 MG/L | 2026-05-26 | WELL 03 / California DDW laboratory results |
| ALKALINITY, BICARBONATE | 130 MG/L | 2026-05-26 | WELL 03 / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 10.000000000 MG/L | 2026-05-26 | WELL 03 / California DDW laboratory results |
| ALKALINITY, TOTAL | 110 MG/L | 2026-05-26 | WELL 03 / California DDW laboratory results |
| ALKALINITY, CARBONATE | < 10.000000000 MG/L | 2026-05-26 | WELL 03 / California DDW laboratory results |
| PH, FIELD | 6.89 PH | 2026-05-26 | WELL 03 / California DDW laboratory results |
| CONDUCTIVITY @ 25 C UMHOS/CM | 215 UMHO/CM | 2026-05-26 | WELL 03 / California DDW laboratory results |
| AGGRESSIVE INDEX | 11.8 AGGR | 2026-05-26 | WELL 03 / California DDW laboratory results |
| TDS | 130 MG/L | 2026-05-26 | WELL 03 / California DDW laboratory results |
| LANGELIER INDEX (PH(S)) | 0.02 LANG | 2026-05-26 | WELL 03 / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 10.000000000 MG/L | 2026-03-17 | WELL 03 / California DDW laboratory results |
| ODOR | < 1.000000000 TON | 2026-03-17 | WELL 03 / 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
11 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 / Maximum Contaminant Level Violation, E. coli (RTCR) | 2024-08-01 – 2024-08-31 | Resolved | Yes | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-09-01 – 1984-09-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-08-01 – 1984-08-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1984-07-01 – 1984-07-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-12-01 – 1983-12-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-11-01 – 1983-11-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-02-01 – 1983-02-28 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1982-11-01 – 1982-11-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1982-10-01 – 1982-10-31 | Archived | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 1981-10-01 – 1982-09-30 | Archived | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 1980-10-30 – 1981-10-29 | 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
- California DDW laboratory results — last successful check: 2026-10-18
Administrative contact (EPA filing)
Davey, Bryan: 530-289-3201
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.