Del Oro Water Company - Strawberry Div.
Published drinking-water records and contacts for Del Oro Water Company - Strawberry Div.. System CA5510007. Review sources and dates; not a real-time water assessment.
- System ID
- CA5510007
- State or territory
- CA
- Published population served
- 1295
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 19 — 1994-01-01 – 2025-12-31
- California DDW laboratory results: 124 — 2026-01-14 – 2026-07-08
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) | 0.000896 mg/L | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.004426 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.00503 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.0046 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2004-01-01 – 2006-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| CARBON, DISSOLVED ORGANIC (DOC) | 0.86 MG/L | 2026-07-08 | DEL ORO STRAWBERRY WTP - TREATED / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 1.000000000 MG/L | 2026-06-10 | DEL ORO STRAWBERRY WTP - TREATED / California DDW laboratory results |
| ALKALINITY, CARBONATE | 6.06 MG/L | 2026-06-10 | DEL ORO STRAWBERRY WTP - TREATED / California DDW laboratory results |
| ALKALINITY, CARBONATE | < 1.000000000 MG/L | 2026-06-10 | HERRING CREEK - RAW / California DDW laboratory results |
| ALKALINITY, TOTAL | 16.6 MG/L | 2026-06-10 | HERRING CREEK - RAW / California DDW laboratory results |
| ALKALINITY, TOTAL | 19.7 MG/L | 2026-06-10 | DEL ORO STRAWBERRY WTP - TREATED / California DDW laboratory results |
| ALKALINITY, BICARBONATE | 13.6 MG/L | 2026-06-10 | DEL ORO STRAWBERRY WTP - TREATED / California DDW laboratory results |
| PERCHLORATE | < 1.000000000 UG/L | 2026-06-10 | HERRING CREEK - RAW / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 1.000000000 MG/L | 2026-06-10 | HERRING CREEK - RAW / California DDW laboratory results |
| ALKALINITY, BICARBONATE | 16.6 MG/L | 2026-06-10 | HERRING CREEK - RAW / California DDW laboratory results |
| CARBON, TOTAL | 2.8 MG/L | 2026-05-13 | HERRING CREEK - RAW / California DDW laboratory results |
| HYDROXIDE AS CALCIUM CARBONATE | < 1.000000000 MG/L | 2026-05-13 | HERRING CREEK - 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
12 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 |
|---|---|---|---|---|
| Surface Water Treatment Rule / Treatment Technique (SWTR and GWR) | 2025-02-01 – 2025-02-28 | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2018-09-01 – 2018-09-30 | Resolved | No | 2026Q3 |
| Surface Water Treatment Rule / Treatment Technique (SWTR and GWR) | 2018-02-01 – 2018-02-28 | Resolved | Yes | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1989-07-01 – 1989-07-31 | 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 | 1983-10-01 – 1983-10-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1980-07-30 – 1980-10-29 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1980-07-28 – 1980-10-27 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1980-01-30 – 1980-05-29 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1980-01-28 – 1980-05-27 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1979-12-30 – 1980-01-29 | 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)
Fortino, Robert: 530-809-3970
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.