Three Valleys Mwd
Published drinking-water records and contacts for Three Valleys Mwd. System CA1910041. Review sources and dates; not a real-time water assessment.
- System ID
- CA1910041
- State or territory
- CA
- Published population served
- 0
- System type (source code)
- CWS
Published records and dates
- California DDW laboratory results: 737 — 2026-01-20 – 2026-06-23
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
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| CHLOROFORM | 20.0 UG/L | 2026-06-23 | DBPR Sample / California DDW laboratory results |
| BENTAZON | < 2.000000000 UG/L | 2026-06-23 | EFFLUENT OF THE TREATMENT PLANT RESERVOI / California DDW laboratory results |
| DIBROMOCHLOROMETHANE | 14.2 UG/L | 2026-06-23 | DBPR Sample / California DDW laboratory results |
| TOTAL HALOACETIC ACIDS (HAA5) | 12.6 UG/L | 2026-06-23 | DBPR Sample / California DDW laboratory results |
| CARBOFURAN | < 5.000000000 UG/L | 2026-06-23 | INFLUENT TO THE TREATMENT PLANT / California DDW laboratory results |
| 2,3,7,8-TCDD | < 0.005000000 NG/L | 2026-06-23 | EFFLUENT OF THE TREATMENT PLANT RESERVOI / California DDW laboratory results |
| METHOXYCHLOR | < 10.000000000 UG/L | 2026-06-23 | EFFLUENT OF THE TREATMENT PLANT RESERVOI / California DDW laboratory results |
| CHLOROFORM | 20.3 UG/L | 2026-06-23 | DBPR Sample / California DDW laboratory results |
| BROMODICHLOROMETHANE | 21.9 UG/L | 2026-06-23 | DBPR Sample / California DDW laboratory results |
| 11CL-PF3OUDS | < 2.000000000 NG/L | 2026-06-23 | INFLUENT TO THE TREATMENT PLANT / California DDW laboratory results |
| BHC-GAMMA | < 0.200000000 UG/L | 2026-06-23 | INFLUENT TO THE TREATMENT PLANT / California DDW laboratory results |
| DI(2-ETHYLHEXYL) PHTHALATE | < 3.000000000 UG/L | 2026-06-23 | EFFLUENT OF THE TREATMENT PLANT RESERVOI / 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
2 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 |
|---|---|---|---|---|
| Miscellaneous Other Rules / Notification, Public | 1988-11-01 – 1988-11-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1988-06-01 – 1988-06-30 | 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)
Lang, Stephen: 909-293-7034
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.