Public water system · NJ1222310
ActiveKeystone Plastics Inc.
At a glance
Keystone Plastics Inc. (PWSID NJ1222310) is an active transient non-community water system in Middlesex County, New Jersey. It reports serving 120 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
120
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Keystone Plastics Inc. compare with other water systems in Middlesex County?
By EPA's size categories, Keystone Plastics Inc. is a very small system (500 people or fewer). Middlesex County has 36 active public water systems. Its population served is well below the county average of 19,870 people per system, and accounts for less than 0.1% of the 715,306 people reported by systems filed under the county. Across New Jersey, the 3,496 active systems average 2,750 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Keystone Plastics Inc. is about 17% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. New Jersey has 2,277 active transient non-community water systems, 65% of the state's 3,496 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,313 New Jersey systems (95%) list groundwater as their primary source.
Who owns and regulates Keystone Plastics Inc.?
EPA lists Keystone Plastics Inc. as privately owned. The NJ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 21 of the 36 active systems in Middlesex County (58%) are also privately owned.
Does Keystone Plastics Inc. have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2005. The violations listed here began between January 2005 and October 2005. By type: 12 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, 1,1,2-Trichloroethane, Toluene and Chlorobenzene. EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2005-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Keystone Plastics Inc.: frequently asked questions
Who runs Keystone Plastics Inc.?
Keystone Plastics Inc. (PWSID NJ1222310) is a transient non-community water system privately owned. It is regulated by the NJ state drinking water program.
How many people does Keystone Plastics Inc. serve?
Keystone Plastics Inc. reports serving 120 people through 1 service connection in Middlesex County, New Jersey.
Where does Keystone Plastics Inc. get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Keystone Plastics Inc. have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2005. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Keystone Plastics Inc.'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2005. For current results, consult EPA ECHO, or the NJ state drinking water program.
Where can I find Keystone Plastics Inc.'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Keystone Plastics Inc. is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Middlesex County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Middlesex Water Company | Middlesex | 233,376 | Community | Surface water |
| Old Bridge Mua | Middlesex | 68,000 | Community | Purchased surface water |
| New Brunswick W Dept | Middlesex | 55,000 | Community | Surface water |
| Perth Amboy Water Department | Middlesex | 52,328 | Community | Groundwater under influence of surface water |
| East Brunswick Water Utility | Middlesex | 49,715 | Community | Purchased surface water |
| South Brunswick Twp W Di | Middlesex + 1 more | 45,450 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Keystone Plastics Inc., PWSID NJ1222310, New Jersey”, https://aquacensus.com/water-systems/new-jersey/keystone-plastics-inc-nj1222310 (data as of October 1, 2026).