Tassajara Springs Ws
Published drinking-water records and contacts for Tassajara Springs Ws. System CA2701705. Review sources and dates; not a real-time water assessment.
- System ID
- CA2701705
- State or territory
- CA
- Published population served
- 150
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 4 — 2012-01-01 – 2027-12-31
- California DDW laboratory results: 26 — 2026-02-10 – 2026-06-29
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) | 0.0037 mg/L | 2025-01-01 – 2027-12-31 | 2026Q3 |
| Lead (PB90) | 0.0022 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2015-01-01 – 2017-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2012-01-01 – 2014-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| HFPO-DA | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| NONAFLUORO NFDHA | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUORO PFMPA | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUOROPENTANOIC ACID (PFPEA) | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUORO PFEESA | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUOROCTANOIC ACID (PFOA) | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUOROHEXANE SULFONIC ACID 4:2 FTS | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUOROUNDECANOIC ACID (PFUNA) | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| PERFLUORODODECANOIC ACID (PFDOA) | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / California DDW laboratory results |
| 11CL-PF3OUDS | < 2.000000000 NG/L | 2026-06-29 | COMBINED SPRING / 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
19 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 / Monitoring, Routine (RTCR) | 2016-11-01 – 2016-11-30 | Resolved | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 2007-09-01 – 2007-09-30 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2007-04-01 – 2007-04-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2007-02-01 – 2007-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 2005-07-01 – 2005-09-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-08-01 – 2002-08-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-07-01 – 2002-07-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-06-01 – 2002-06-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-05-01 – 2002-05-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-04-01 – 2002-04-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-03-01 – 2002-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2002-02-01 – 2002-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2001-12-01 – 2001-12-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2001-11-01 – 2001-11-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2001-10-01 – 2001-10-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2001-06-01 – 2001-06-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 2000-05-01 – 2000-05-31 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Repeat Major (TCR) | 2000-05-01 – 2000-05-31 | 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: 2026-10-17
Administrative contact (EPA filing)
Hutto, Amy: 510-543-6237
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.