Harvest Moon Mutual Water Co
Published drinking-water records and contacts for Harvest Moon Mutual Water Co. System CA1500546. Review sources and dates; not a real-time water assessment.
- System ID
- CA1500546
- State or territory
- CA
- Published population served
- 138
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 16 — 1993-01-01 – 2025-12-31
- California DDW laboratory results: 73 — 2026-01-08 – 2026-07-02
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) | 0.0012 mg/L | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.0034 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0.006 mg/L | 2007-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2003-01-01 – 2005-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| COMBINED RADIUM (-226 & -228) | < 1.550000000 PCI/L | 2026-07-02 | WELL 01 (HEATH/BLACKHAWK) - RAW / California DDW laboratory results |
| GROSS ALPHA PARTICLE ACTIVITY | 8.42 PCI/L | 2026-07-02 | WELL 02 (JOHNSON/MOON) - BEFORE_GAC-TCP / California DDW laboratory results |
| RADIUM-228 | 0.969 PCI/L | 2026-07-02 | WELL 01 (HEATH/BLACKHAWK) - RAW / California DDW laboratory results |
| RADIUM-228 | < 0.886000000 PCI/L | 2026-07-02 | WELL 02 (JOHNSON/MOON) - BEFORE_GAC-TCP / California DDW laboratory results |
| COMBINED RADIUM (-226 & -228) | < 1.710000000 PCI/L | 2026-07-02 | WELL 02 (JOHNSON/MOON) - BEFORE_GAC-TCP / California DDW laboratory results |
| RADIUM-226 | < 0.751000000 PCI/L | 2026-07-02 | WELL 01 (HEATH/BLACKHAWK) - RAW / California DDW laboratory results |
| RADIUM-226 | < 0.823000000 PCI/L | 2026-07-02 | WELL 02 (JOHNSON/MOON) - BEFORE_GAC-TCP / California DDW laboratory results |
| 1,2,3-TRICHLOROPROPANE | < 0.005000000 UG/L | 2026-06-11 | WELL 02 (JOHNSON/MOON) - AFTER_GAC-TCP / California DDW laboratory results |
| 1,2,3-TRICHLOROPROPANE | < 0.005000000 UG/L | 2026-05-14 | WELL 02 (JOHNSON/MOON) - AFTER_GAC-TCP / California DDW laboratory results |
| 1,2,3-TRICHLOROPROPANE | < 0.005000000 UG/L | 2026-04-16 | WELL 01 (HEATH/BLACKHAWK) - RAW / California DDW laboratory results |
| NITRATE | 4.7 MG/L | 2026-04-16 | WELL 02 (JOHNSON/MOON) - AFTER_GAC-TCP / California DDW laboratory results |
| PERFLUOROBUTANOIC ACID (PFBA) | < 1.900000000 NG/L | 2026-04-09 | WELL 01 (HEATH/BLACKHAWK) - 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
0 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
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)
Anderson, Steven: 661-392-7072
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.