Union County, NJ Water Quality Guide
Provider mappings, reported contaminant levels, and water help information for Union County, NJ.
About Union County, NJ Water
About Union County, NJ Water
Union County is served by multiple public water systems, utilities, and report records. The provider and contaminant information below is organized by PWS ID rather than treated as one countywide water result.
Municipality-level mapping: Pending verified NJDEP or utility service-area records for the current inventory.
Utility and water-quality data
Water system providers for Union County, NJ
This county page lists PWS systems represented in the current NJ source inventory. A county is not one water system; confirm the PWS ID on your bill or through NJDEP.
Utility providers and PWS IDs
| PWS ID | System | Provider | County | Status | Official links |
|---|---|---|---|---|---|
NJ2004001 | PWS ID: NJ2004001 | New Jersey American Water Co. | Union County | verified-current | Utility/source links CCR/report finder |
NJ2004002 | PWS ID: NJ2004002 | New Jersey American Water Co. | Union County | verified-current | Utility/source links CCR/report finder |
Municipality pages with available report data
- Berkeley Heights — 2 report-linked PWS systems
- Clark — 1 report-linked PWS system
- Cranford — 2 report-linked PWS systems
- Elizabeth — 2 report-linked PWS systems
- Fanwood — 1 report-linked PWS system
- Garwood — 1 report-linked PWS system
- Hillside — 3 report-linked PWS systems
- Kenilworth — 2 report-linked PWS systems
- Linden — 2 report-linked PWS systems
- Mountainside — 2 report-linked PWS systems
- New Providence — 1 report-linked PWS system
- Plainfield — 1 report-linked PWS system
- Rahway — 1 report-linked PWS system
- Roselle — 2 report-linked PWS systems
- Roselle Park — 2 report-linked PWS systems
- Scotch Plains — 2 report-linked PWS systems
- Springfield — 2 report-linked PWS systems
- Summit — 2 report-linked PWS systems
- Union — 3 report-linked PWS systems
- Westfield — 2 report-linked PWS systems
- Winfield — 1 report-linked PWS system
Reported contaminant levels for Union County, NJ
| PWS ID | System | Contaminant | Reported level | Range | Limit | Comparison | Sample year | Source |
|---|
All available reports
NJ2004001PWS ID: NJ2004001 — Official CCR/report finderNJ2004002PWS ID: NJ2004002 — Official CCR/report finder
How to read this info
How to Read This Info for Union County, NJ
Start with the provider table and PWS ID. Compare the reported contaminant level and unit with the listed MCL, recommended upper limit, or action level. “Below / At / Above” is a direct comparison, not a formal compliance determination.
For address confirmation, use the NJDEP Drinking Water Viewer, EPA ECHO, and the official CCR links shown above.
FAQ
Frequently asked questions
Who is my water provider and source in Union County?
Review the listed PWS IDs and providers above:
NJ2004001 — New Jersey American Water Co.
NJ2004002 — New Jersey American Water Co.
Confirm the PWS ID on your bill or with NJDEP because counties are not single water systems.
Does Union County have specific water quality issues?
Review the contaminant rows and official CCR sources above. Do not treat one system’s report as a countywide result.
NJ Water Quality is an independent educational resource. County and PWS mappings are discovery records and may not establish service at every address. Blank, dated, or limited data are disclosed above.
Last reviewed: July 13, 2026