Public water system · LA2019017
ActivePhillips 66 Lake Charles Refinery
At a glance
Phillips 66 Lake Charles Refinery (PWSID LA2019017) is an active non-transient non-community water system in Calcasieu Parish County, Louisiana. It reports serving 770 people through 10 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in January 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
770
Service connections
10
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Phillips 66 Lake Charles Refinery compare with other water systems in Calcasieu Parish County?
By EPA's size categories, Phillips 66 Lake Charles Refinery is a small system (501 to 3,300 people). Calcasieu Parish County has 72 active public water systems. Its population served is well below the county average of 2,962 people per system, and accounts for 0.4% of the 213,234 people reported by systems filed under the county. Across Louisiana, the 1,121 active systems average 4,685 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Phillips 66 Lake Charles Refinery is about 79% above 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. Louisiana has 125 active non-transient non-community water systems, 11% of the state's 1,121 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 966 Louisiana systems (86%) list groundwater as their primary source.
Who owns and regulates Phillips 66 Lake Charles Refinery?
EPA lists Phillips 66 Lake Charles Refinery as privately owned. The LA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 52 of the 72 active systems in Calcasieu Parish County (72%) are also privately owned.
Does Phillips 66 Lake Charles Refinery have drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in January 2022. The violations listed here began between January 2008 and January 2022. By type: 8 required treatment not met, 2 disinfectant level above the legal limit and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Groundwater Rule (8 of them). 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 |
|---|---|---|---|---|
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-01-11 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2021-10-01 | Disinfectant level above the legal limitNon-Acute MRDL · code 11 | Chlorinecode 0999 | Yes | Resolved |
| 2021-07-01 | Disinfectant level above the legal limitNon-Acute MRDL · code 11 | Chlorinecode 0999 | Yes | Resolved |
| 2008-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Phillips 66 Lake Charles Refinery: frequently asked questions
Who runs Phillips 66 Lake Charles Refinery?
Phillips 66 Lake Charles Refinery (PWSID LA2019017) is a non-transient non-community water system privately owned. It is regulated by the LA state drinking water program.
How many people does Phillips 66 Lake Charles Refinery serve?
Phillips 66 Lake Charles Refinery reports serving 770 people through 10 service connections in Calcasieu Parish County, Louisiana.
Where does Phillips 66 Lake Charles Refinery 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 Phillips 66 Lake Charles Refinery have any drinking water violations?
Of the 12 most recent violations in EPA's records, 12 are health-based, and the most recent began in January 2022. 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 Phillips 66 Lake Charles Refinery'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, 12 are health-based, and the most recent began in January 2022. For current results, consult EPA ECHO, or the LA state drinking water program.
Where can I find Phillips 66 Lake Charles Refinery's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Phillips 66 Lake Charles Refinery 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 Calcasieu Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Lake Charles Water System | Calcasieu Parish | 79,500 | Community | Groundwater |
| Sulphur City of Water System | Calcasieu Parish | 24,489 | Community | Groundwater |
| Calcasieu Parish Ww District No 1 | Calcasieu Parish | 20,837 | Community | Groundwater |
| Calcasieu Parish Ww Dist 9 Carlyss | Calcasieu Parish | 14,502 | Community | Groundwater |
| Houston River Waterworks District 11 | Calcasieu Parish | 6,915 | Community | Groundwater |
| Calcasieu Parish Ww District 8 | Calcasieu Parish | 6,834 | Community | 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, “Phillips 66 Lake Charles Refinery, PWSID LA2019017, Louisiana”, https://aquacensus.com/water-systems/louisiana/phillips-66-lake-charles-refinery-la2019017 (data as of October 1, 2026).