Riverside Csd
Published drinking-water records and contacts for Riverside Csd. System CA1200518. Review sources and dates; not a real-time water assessment.
- System ID
- CA1200518
- State or territory
- CA
- Published population served
- 333
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 14 — 1993-01-01 – 2025-12-31
- California DDW laboratory results: 14 — 2026-02-03 – 2026-03-03
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 | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.00157 mg/L | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0.0016 mg/L | 2013-01-01 – 2015-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2009-01-01 – 2011-12-31 | 2026Q3 |
| Lead (PB90) | 0.0066 mg/L | 2009-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.0033 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
| Lead (PB90) | 0.0033 mg/L | 2003-01-01 – 2005-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| GROSS ALPHA PARTICLE ACTIVITY | < 1.760000000 PCI/L | 2026-03-03 | WELLS 01 AND 02 COMBINED-RAW / California DDW laboratory results |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 1.850000000 NG/L | 2026-02-17 | WELLS 01 AND 02 COMBINED-RAW / California DDW laboratory results |
| PERFLUORONONANOIC ACID (PFNA) | < 1.810000000 NG/L | 2026-02-17 | WELL 06 - RAW / California DDW laboratory results |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 1.810000000 NG/L | 2026-02-17 | WELL 06 - RAW / California DDW laboratory results |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 1.810000000 NG/L | 2026-02-17 | WELL 06 - RAW / California DDW laboratory results |
| PERFLUORONONANOIC ACID (PFNA) | < 1.850000000 NG/L | 2026-02-17 | WELLS 01 AND 02 COMBINED-RAW / California DDW laboratory results |
| PERFLUOROHEXANE SULFONIC ACID (PFHxS) | < 1.810000000 NG/L | 2026-02-17 | WELL 06 - RAW / California DDW laboratory results |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 1.850000000 NG/L | 2026-02-17 | WELLS 01 AND 02 COMBINED-RAW / California DDW laboratory results |
| PERFLUOROHEXANE SULFONIC ACID (PFHxS) | < 1.850000000 NG/L | 2026-02-17 | WELLS 01 AND 02 COMBINED-RAW / California DDW laboratory results |
| PERFLUOROCTANOIC ACID (PFOA) | < 1.850000000 NG/L | 2026-02-17 | WELLS 01 AND 02 COMBINED-RAW / California DDW laboratory results |
| HFPO-DA | < 1.810000000 NG/L | 2026-02-17 | WELL 06 - RAW / California DDW laboratory results |
| PERFLUOROCTANOIC ACID (PFOA) | < 1.810000000 NG/L | 2026-02-17 | WELL 06 - 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
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 |
|---|---|---|---|---|
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2019-10-01 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2018-10-01 – — | Resolved | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-08-01 – 1983-08-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-05-01 – 1983-05-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-04-01 – 1983-04-30 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-03-01 – 1983-03-31 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-02-01 – 1983-02-28 | Archived | No | 2026Q3 |
| Miscellaneous Other Rules / Notification, Public | 1983-01-01 – 1983-01-31 | 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: 2026-10-17
Administrative contact (EPA filing)
Rayl, William (BILLY): 707-845-8221
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.