Public water system · LA1063004
ActiveCity of Denham Springs Water System
At a glance
City of Denham Springs Water System (PWSID LA1063004) is an active community water system in Livingston Parish County, Louisiana. It reports serving 25,725 people through 8,124 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; 3 are health-based, and the most recent began in January 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25,725
Service connections
8,124
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Denham Springs Water System compare with other water systems in Livingston Parish County?
By EPA's size categories, City of Denham Springs Water System is a large system (10,001 to 100,000 people). Livingston Parish County has 27 active public water systems, and City of Denham Springs Water System is the 2nd-largest of them by population served. Its population served is about 4.4 times the county average of 5,883 people per system, and accounts for 16% of the 158,842 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 City of Denham Springs Water System is about 3.8 times 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 City of Denham Springs Water System?
EPA lists City of Denham Springs 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. 7 of the 27 active systems in Livingston Parish County (26%) are also owned by a local government.
Does City of Denham Springs Water System have drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in January 2021. The violations listed here began between July 1991 and January 2021. By type: 3 monitoring and reporting, 3 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 5 as resolved and 2 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-01-17 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2000-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1991-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
City of Denham Springs Water System: frequently asked questions
Who runs City of Denham Springs Water System?
City of Denham Springs Water System (PWSID LA1063004) is a community water system owned by a local government. It is regulated by the LA state drinking water program.
How many people does City of Denham Springs Water System serve?
City of Denham Springs Water System reports serving 25,725 people through 8,124 service connections in Livingston Parish County, Louisiana.
Where does City of Denham Springs 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 City of Denham Springs Water System have any drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in January 2021. 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 City of Denham Springs 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; 3 are health-based, and the most recent began in January 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find City of Denham Springs Water System's water quality report?
As a community water system, City of Denham Springs 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 Livingston Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ward Ii Water District | Livingston Parish | 78,147 | Community | Groundwater |
| Town of Walker Water System | Livingston Parish | 15,813 | Community | Groundwater |
| Town of Livingston Water System | Livingston Parish | 8,946 | Community | Groundwater |
| Town of Albany Water System | Livingston Parish | 7,305 | Community | Groundwater |
| Fourth Ward Water Works | Livingston Parish | 4,839 | Community | Groundwater |
| Colyell Community Water | Livingston Parish | 4,544 | 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, “City of Denham Springs Water System, PWSID LA1063004, Louisiana”, https://aquacensus.com/water-systems/louisiana/city-of-denham-springs-water-system-la1063004 (data as of October 1, 2026).