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Public water system · CT1180154

Active

Casa Lu

Transient non-community water system in Fairfield County, Connecticut, drawing primarily on groundwater.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

25

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDCT1180154
System typeTransient non-community water system
Activity statusActive
Population served25
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyCT state drinking water program
City servedRidgefield
StateConnecticut
ZIP—
CountyFairfield County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2026-04-12Required treatment not metFailure To Address Deficiency · code 45Groundwater Rulecode 0700YesUnaddressed
2026-04-11Required treatment not metFailure To Address Deficiency · code 45Groundwater Rulecode 0700YesUnaddressed
2025-07-10ReportingReport Sample Result/Fail Monitor (RTCR) · code 4BRevised Total Coliform Rulecode 8000NoResolved
2025-07-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2013-01-17Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved
2011-10-03Monitoring and reportingMonitoring, Source Water (GWR) · code 34E. colicode 3014NoResolved
2011-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2011-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2011-01-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2010-10-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2010-07-01Monitoring and reportingMonitoring, Routine Major (TCR) · code 23Total coliform bacteria (TCR)code 3100NoResolved
2010-04-10Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoResolved

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.

Casa Lu: frequently asked questions

Is Casa Lu's water safe to drink?

Casa Lu is an active transient non-community water system regulated under the Safe Drinking Water Act, overseen by the CT state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Casa Lu?

Casa Lu (PWSID CT1180154) is a private-owned transient non-community water system, regulated by the CT state drinking water program.

How many people does Casa Lu serve?

Casa Lu reports serving 25 people through 1 service connections in Fairfield County, Connecticut.

Where does Casa Lu get its water?

EPA SDWIS lists this system's primary water source as groundwater.

Other water systems in Fairfield County

Water systemCountyPopulation servedTypeSource
Aquarion-Eastern Fairfield CountyFairfield351,756CommunitySurface water
Aquarion-StamfordFairfield119,214CommunitySurface water
Danbury Water DepartmentFairfield62,055CommunitySurface water
Aquarion-GreenwichFairfield53,297CommunitySurface water
South Norwalk Electric & WaterFairfield42,000CommunitySurface water
Norwalk First Taxing DistrictFairfield40,256CommunitySurface water

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