Public water system · LA1059009
ActiveSummerville Water System
At a glance
Summerville Water System (PWSID LA1059009) is an active community water system in La Salle Parish County, Louisiana. It reports serving 1,425 people through 475 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in March 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,425
Service connections
475
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Summerville Water System compare with other water systems in La Salle Parish County?
By EPA's size categories, Summerville Water System is a small system (501 to 3,300 people). La Salle Parish County has 12 active public water systems, and Summerville Water System is the 6th-largest of them by population served. Its population served is about 12% below the county average of 1,612 people per system, and accounts for 7.4% of the 19,338 people reported by systems filed under the county. Across Louisiana, the 1,121 active systems average 4,685 people each. Nationally, the average active community water system reports serving 6,703 people, so Summerville Water System is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Louisiana has 815 active community water systems, 73% 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 Summerville Water System?
EPA lists Summerville Water System as owned by a local government. 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. 6 of the 12 active systems in La Salle Parish County (50%) are also owned by a local government.
Does Summerville Water System have drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in March 2019. The violations listed here began between July 1996 and March 2019. By type: 2 public notice, recordkeeping or other, 2 required treatment not met, 2 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 4 as archived and 3 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 |
|---|---|---|---|---|
| 2019-03-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-12-01 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2012-01-01 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2008-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2008-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2004-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1996-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
All 7 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.
Summerville Water System: frequently asked questions
Who runs Summerville Water System?
Summerville Water System (PWSID LA1059009) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does Summerville Water System serve?
Summerville Water System reports serving 1,425 people through 475 service connections in La Salle Parish County, Louisiana.
Where does Summerville Water System 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 Summerville Water System have any drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in March 2019. 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 Summerville Water System'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 7 violations for this system; 4 are health-based, and the most recent began in March 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find Summerville Water System's water quality report?
As a community water system, Summerville Water System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in La Salle Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Town of Jena Water System | La Salle Parish | 3,614 | Community | Groundwater |
| Lasalle Waterworks District 1 | La Salle Parish | 3,240 | Community | Groundwater |
| Town of Olla Water System | La Salle Parish | 2,565 | Community | Groundwater |
| Nebo Water System Inc. | La Salle Parish | 2,460 | Community | Groundwater |
| Belah Fellowship Water System | La Salle Parish | 1,806 | Community | Groundwater |
| East Jena Water System Inc.. | La Salle Parish | 990 | 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, “Summerville Water System, PWSID LA1059009, Louisiana”, https://aquacensus.com/water-systems/louisiana/summerville-water-system-la1059009 (data as of October 1, 2026).