Monmouth County, NJ Water Quality Guide
Monmouth County combines a large investor-owned utility service area with municipal systems and coastal private-well considerations.
About Monmouth County, NJ Water
About Monmouth County, NJ Water
Monmouth 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 Monmouth 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 |
|---|---|---|---|---|---|
NJ1339001 | (NJ1345001), Shrewsbury Twp AVMA (NJ1346001), Shorelands (NJ1339001), and Union Beach | New Jersey American Water Co. | Monmouth County | verified-current | Utility/source links CCR/report finder |
NJ1345001 | PWS ID: NJ1345001 | New Jersey American Water Co. | Monmouth County | verified-current | Utility/source links CCR/report finder |
NJ1346001 | (NJ1345001), Shrewsbury Twp AVMA (NJ1346001), Shorelands (NJ1339001), and Union Beach | New Jersey American Water Co. | Monmouth County | verified-current | Utility/source links CCR/report finder |
NJ1350001 | (NJ1350001). The merged system operates under the NJ American Water – Coastal North | New Jersey American Water Co. | Monmouth County | verified-current | Utility/source links CCR/report finder |
Municipality pages with available report data
- Aberdeen — 2 report-linked PWS systems
- Allenhurst — 1 report-linked PWS system
- Asbury Park — 1 report-linked PWS system
- Atlantic Highlands — 1 report-linked PWS system
- Avon-by-the-Sea — 1 report-linked PWS system
- Belmar — 1 report-linked PWS system
- Bradley Beach — 1 report-linked PWS system
- Colts Neck — 1 report-linked PWS system
- Deal — 1 report-linked PWS system
- Eatontown — 1 report-linked PWS system
- Fair Haven — 1 report-linked PWS system
- Farmingdale — 1 report-linked PWS system
- Freehold — 1 report-linked PWS system
- Hazlet — 3 report-linked PWS systems
- Highlands — 1 report-linked PWS system
- Holmdel — 2 report-linked PWS systems
- Howell — 1 report-linked PWS system
- Interlaken — 1 report-linked PWS system
- Keansburg — 3 report-linked PWS systems
- Keyport — 2 report-linked PWS systems
- Little Silver — 1 report-linked PWS system
- Loch Arbour — 1 report-linked PWS system
- Long Branch — 1 report-linked PWS system
- Marlboro — 1 report-linked PWS system
- Matawan — 1 report-linked PWS system
- Middletown — 2 report-linked PWS systems
- Monmouth Beach — 1 report-linked PWS system
- Neptune City — 1 report-linked PWS system
- Neptune — 1 report-linked PWS system
- Ocean — 1 report-linked PWS system
- Oceanport — 1 report-linked PWS system
- Red Bank — 1 report-linked PWS system
- Rumson — 1 report-linked PWS system
- Sea Bright — 1 report-linked PWS system
- Shrewsbury — 2 report-linked PWS systems
- Shrewsbury — 2 report-linked PWS systems
- Tinton Falls — 2 report-linked PWS systems
- Union Beach — 2 report-linked PWS systems
- Upper Freehold — 3 report-linked PWS systems
- Wall — 1 report-linked PWS system
- West Long Branch — 1 report-linked PWS system
Reported contaminant levels for Monmouth County, NJ
| PWS ID | System | Contaminant | Reported level | Range | Limit | Comparison | Sample year | Source |
|---|
All available reports
NJ1339001(NJ1345001), Shrewsbury Twp AVMA (NJ1346001), Shorelands (NJ1339001), and Union Beach — Official CCR/report finderNJ1345001PWS ID: NJ1345001 — Official CCR/report finderNJ1346001(NJ1345001), Shrewsbury Twp AVMA (NJ1346001), Shorelands (NJ1339001), and Union Beach — Official CCR/report finderNJ1350001(NJ1350001). The merged system operates under the NJ American Water – Coastal North — Official CCR/report finder
How to read this info
How to Read This Info for Monmouth 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 Monmouth County?
Review the listed PWS IDs and providers above:
NJ1339001 — New Jersey American Water Co.
NJ1345001 — New Jersey American Water Co.
NJ1346001 — New Jersey American Water Co.
NJ1350001 — New Jersey American Water Co.
Confirm the PWS ID on your bill or with NJDEP because counties are not single water systems.
Does Monmouth 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