Water System Report LA

E Jefferson Ww District 1

EPA ID: LA1051001 ยท 275,163 people served ยท 11 ZIP codes

ZipCheckup's reading of EPA records for E Jefferson Ww District 1 (LA1051001): no drinking-water violations recorded since 2021. Checked against the EPA violation database, E Jefferson Ww District 1 returns no entries for its service territory of 275,163 people.

Data: EPA SDWIS

A ยท 100
Avg Safety Score
275,163
People Served
11
ZIP Codes Served
0
Violations (since 2021)
Surface Water
Water Source
0.0027 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 3
County Radon Potential ยท Low
0
Contaminants Flagged
$318K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for E Jefferson Ww District 1 Source: EPA SDWIS service area boundaries.

Service area boundary - average Home Safety grade of mapped ZIPs: A

Demographics of ZIP Codes Served

$70,187
Median Household Income
299,124
Population of ZIP Codes Served (Census)
47%
Disadvantaged Population
60th
Poverty Percentile
44th
Energy Burden Percentile
78%
Pre-1986 Housing

The ZIP codes associated with E Jefferson Ww District 1 have a median household income of $70,187 and about 299,124 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 78% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 47% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

๐ŸŒŠ Where Does Your Water Come From?

Surface Water

E Jefferson Ww District 1's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.

Moderate Risk
Source Contamination Risk
24th
Wastewater Discharge Proximity
55th
Superfund Site Proximity

Infrastructure Risk

63 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
11 yr
Est. Remaining Life
Accelerating decay (model estimate)
Decay Status
Installed 85% of expected lifespan used (estimate) End of life

PFAS in ZIP Codes This System Serves

PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 21 detections recorded. 4 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.

Health concern: Exposure to certain PFAS has been associated with some cancers and with immune and developmental effects; effects differ by compound. Many PFAS break down very slowly in the environment.
Recommended filter: An activated carbon filter certified under NSF/ANSI 53 or a reverse osmosis system certified under NSF/ANSI 58 for the PFAS listed in its certification. Find the right filter โ†’

Comparable Water Systems

Similar-sized systems in Louisiana

B 4 violations
A 22 violations
A 0 violations
W Jefferson Ww District 2
140,264 people
A 1 violation
A 1 violation

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

PFAS Treatment Water Filtration
PFAS Treatment $500
Water Filtration $55
Total Estimated Cost $555

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$165
10 years
$330
20 years
$660

Compare: Estimated remediation cost is $555 (one-time) vs. $330 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

E Jefferson Ww District 1 (EPA ID: LA1051001) is a community water system in Louisiana that serves approximately 275,163 people from surface water sources.

This system provides water to 11 ZIP codes across 3 communities.

ZIP-Area Home Safety Context: A (100/100)

This is the average Home Safety Score for 9 of 11 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

No accepted violation records in the 2021-2026 window - The accepted EPA ECHO 2026Q2 snapshot contains zero violation records for this system whose record year falls from 2021 through 2026, inclusive. This is not a tap-water safety guarantee.

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.002651 mg/L No N/A

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)

Need help with your water quality?

Typical cost: Water test: typically $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by LA or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for E Jefferson Ww District 1 (LA1051001) on EPA.gov.

Frequently Asked Questions

Is E Jefferson Ww District 1 water safe to drink?

The accepted 2026Q2 ECHO snapshot contains zero violation records for E Jefferson Ww District 1 in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.

How many people does E Jefferson Ww District 1 serve?

E Jefferson Ww District 1 serves approximately 275,163 people across 11 ZIP codes in Louisiana.

Where does E Jefferson Ww District 1 get its water?

The primary water source is surface water.

Federal UCMR5 PFAS Monitoring: Detected

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected; the table compares each one with the EPA MCL where one exists (April 2024 rule, compliance required from 2029) and with this state's enforceable standard where one exists.

Samples collected
348
Detections
7
Latest sample
4/29/2024
Highest analyte
PFBA: 6.6 ppt
Analyte Max detected EPA MCL (compliance required from 2029) Status
PFBA 6.6 ppt No federal MCL โ€”

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

Frequently Asked Questions

Is water from E Jefferson Ww District 1 safe to drink? ▼
E Jefferson Ww District 1 has 0 recorded violations since 2021. The A shown is a ZIP-area score, not a grade for this utility; see the violation table for what was violated.
Should I use a water filter? ▼
No EPA drinking-water violations since 2021 are on record for E Jefferson Ww District 1; this page does not establish contaminant levels at your tap. That is a compliance record, not a guarantee about the water at your tap; a certified filter can target a specific contaminant you are concerned about.
How many people does E Jefferson Ww District 1 serve? ▼
E Jefferson Ww District 1 serves approximately 275,163 people with drinking water across 11 ZIP codes.
What is E Jefferson Ww District 1's water source? ▼
E Jefferson Ww District 1 draws water from surface water sources. Source type affects which contaminants are most likely to be present.
Is there lead in E Jefferson Ww District 1's water? ▼
The most recent 90th-percentile lead result on record is 0.0027 mg/L (sample period ending 2025-12-31). This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with E Jefferson Ww District 1? ▼
The ZIP codes mapped to E Jefferson Ww District 1 have a median household income of $70,187 (Census ZIP-code estimate). In CEJST data, 47% of census tracts in the counties mapped to this area are designated disadvantaged (average across mapped ZIP codes), which may indicate greater vulnerability to environmental health risks.
Where does E Jefferson Ww District 1 get its water? ▼
E Jefferson Ww District 1's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap. Based on the available data, the modeled source-contamination category is moderate; test local water to assess actual exposure.

How to cite this page

APA ZipCheckup. (n.d.). E Jefferson Ww District 1, LA: Serves 275K People. https://zipcheckup.com/water-system/la1051001/
BibTeX
@misc{zipcheckup-water-system-la1051001,
  author = {{ZipCheckup}},
  title  = {{E Jefferson Ww District 1, LA: Serves 275K People}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/la1051001/}
}
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