Public water system · LA2103409
ActiveLake Castle School
At a glance
Lake Castle School (PWSID LA2103409) is an active non-transient non-community water system in St. Tammany Parish County, Louisiana. It reports serving 270 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
270
Service connections
4
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Lake Castle School compare with other water systems in St. Tammany Parish County?
By EPA's size categories, Lake Castle School is a very small system (500 people or fewer). St. Tammany Parish County has 170 active public water systems. Its population served is well below the county average of 1,296 people per system, and accounts for 0.1% of the 220,311 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 Lake Castle School is about 37% 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. 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 Lake Castle School?
EPA lists Lake Castle School 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. 127 of the 170 active systems in St. Tammany Parish County (75%) are also privately owned.
Does Lake Castle School have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2024. The violations listed here began between July 2010 and October 2024. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (2 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2024-10-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 5 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.
Lake Castle School: frequently asked questions
Who runs Lake Castle School?
Lake Castle School (PWSID LA2103409) is a non-transient non-community water system privately owned. It is regulated by the LA state drinking water program.
How many people does Lake Castle School serve?
Lake Castle School reports serving 270 people through 4 service connections in St. Tammany Parish County, Louisiana.
Where does Lake Castle School 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 Lake Castle School have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in October 2024. 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 Lake Castle School'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 5 violations for this system; none is health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the LA state drinking water program.
Where can I find Lake Castle School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lake Castle School 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 St. Tammany Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Slidell Water Supply | St. Tammany Parish | 35,547 | Community | Groundwater |
| St Tam Parish- Bedico -Faubourg-Coquille | St. Tammany Parish | 18,372 | Community | Groundwater |
| St Tam Parish - Briarwood Terrace | St. Tammany Parish | 17,536 | Community | Groundwater |
| City of Covington Water Supply | St. Tammany Parish | 16,185 | Community | Groundwater |
| City of Mandeville Water Supply | St. Tammany Parish | 13,000 | Community | Groundwater |
| Utilities Inc. - North Park Water Supply | St. Tammany Parish | 11,298 | 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, “Lake Castle School, PWSID LA2103409, Louisiana”, https://aquacensus.com/water-systems/louisiana/lake-castle-school-la2103409 (data as of October 1, 2026).