Colby Water Co
Published drinking-water records and contacts for Colby Water Co. System NJ1904007. Review sources and dates; not a real-time water assessment.
- System ID
- NJ1904007
- State or territory
- NJ
- Published population served
- 65
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 30 — 1993-07-01 – 2026-06-30
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) | 0.00098 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0.0015 mg/L | 2025-07-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.00067 mg/L | 2025-01-01 – 2025-06-30 | 2026Q3 |
| Lead (PB90) | 0.0029 mg/L | 2024-07-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.00337 mg/L | 2024-01-01 – 2024-06-30 | 2026Q3 |
| Copper (CU90) | 1.4 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.00371 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.0067 mg/L | 2018-01-01 – 2020-12-31 | 2026Q3 |
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 |
|---|---|---|---|---|
| Ground Water Rule / Monitoring, Source Water (GWR) | 2026-02-25 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Lead Consumer Notice | 2024-09-29 – — | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Lead Consumer Notice | 2023-12-30 – — | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2000-11-01 – 2000-11-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2000-10-01 – 2000-10-31 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Arsenic Rule / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1982-06-24 – 1985-06-23 | Archived | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 1980-07-01 – 1984-06-30 | Archived | No | 2026Q3 |
| Arsenic Rule / Monitoring, Regular | 1979-06-24 – 1982-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-24 – 1982-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-24 – 1982-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-24 – 1982-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-24 – 1982-06-23 | Archived | No | 2026Q3 |
| Inorganic Chemicals / Monitoring, Regular | 1979-06-24 – 1982-06-23 | 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
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.