Public water system · NY5122304
ActiveCoastal Pipeline Corp.
At a glance
Coastal Pipeline Corp. (PWSID NY5122304) is an active non-transient non-community water system in Suffolk County, New York. It reports serving 30 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 1998.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Coastal Pipeline Corp. compare with other water systems in Suffolk County?
By EPA's size categories, Coastal Pipeline Corp. is a very small system (500 people or fewer). Suffolk County has 151 active public water systems. Its population served is well below the county average of 9,192 people per system, and accounts for less than 0.1% of the 1,387,972 people reported by systems filed under the county. Across New York, the 8,167 active systems average 2,374 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Coastal Pipeline Corp. is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. New York has 704 active non-transient non-community water systems, 8.6% of the state's 8,167 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 7,096 New York systems (87%) list groundwater as their primary source.
Who owns and regulates Coastal Pipeline Corp.?
EPA lists Coastal Pipeline Corp. as privately owned. The NY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 105 of the 151 active systems in Suffolk County (70%) are also privately owned.
Does Coastal Pipeline Corp. have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 1998. The violations listed here began between August 1994 and January 1998. By type: 1 monitoring and reporting and 1 required treatment not met. The contaminants or rules involved are Total coliform bacteria (TCR) and Lead and Copper Rule. EPA lists 1 as archived and 1 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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 |
|---|---|---|---|---|
| 1998-01-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-08-01 | Required treatment not metOCCT/SOWT Treatment Installation/Demonstration · code 58 | Lead and Copper Rulecode 5000 | Yes | Resolved |
All 2 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.
Coastal Pipeline Corp.: frequently asked questions
Who runs Coastal Pipeline Corp.?
Coastal Pipeline Corp. (PWSID NY5122304) is a non-transient non-community water system privately owned. It is regulated by the NY state drinking water program.
How many people does Coastal Pipeline Corp. serve?
Coastal Pipeline Corp. reports serving 30 people through 1 service connection in Suffolk County, New York.
Where does Coastal Pipeline Corp. 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 Coastal Pipeline Corp. have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 1998. 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 Coastal Pipeline Corp.'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. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in January 1998. For current results, consult EPA ECHO, or the NY state drinking water program.
Where can I find Coastal Pipeline Corp.'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Coastal Pipeline Corp. is a non-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 Suffolk County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Suffolk County Water Authority | Suffolk | 1,100,000 | Community | Groundwater |
| South Huntington Water District | Suffolk | 81,760 | Community | Groundwater |
| Greenlawn Water District | Suffolk | 42,000 | Community | Groundwater |
| Riverhead Water District | Suffolk | 35,000 | Community | Groundwater |
| Dix Hills Water District | Suffolk | 34,522 | Community | Groundwater |
| Smithtown Water District | Suffolk | 19,635 | Community | Purchased groundwater |
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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, “Coastal Pipeline Corp., PWSID NY5122304, New York”, https://aquacensus.com/water-systems/new-york/coastal-pipeline-corp-ny5122304 (data as of October 1, 2026).