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WaterVerge

Water quality report · updated Jul 2026

Is Loranger, LA Tap Water Safe to Drink?

Graded F, with 92 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
1.5 ppb lead, 90th percentile · low
92 unresolved violations
2K people served by 4 water systems

PWSID LA1103077 · moderate data confidence · private utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
F 42 / 100

#274 of 309Louisiana cities
How we grade →

01The verdict: is Loranger water safe?

Loranger's drinking water has significant quality concerns based on EPA testing data. With a grade of F (42/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 4 water systems serve approximately 1,596 residents using groundwater (wells).

The concern

92 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 1.5 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

23 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Loranger's drinking water received a grade of F (42 out of 100), indicating failing water quality. The city's 4 water systems serve approximately 1,596 residents using groundwater.

Lead levels were measured at 1.5 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program. The system has 148 violations on record, including 19 health-based violations. 92 remain unresolved.

Loranger ranks #274 out of 309 cities in Louisiana for water quality, placing it among the lowest-rated in the state. Loranger relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff. As a small community water system, Loranger may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 23 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 42/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
0 / 45F
Lead & CopperLead at 1.5 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
0 / 10F
Source RiskWater source: Groundwater.
5 / 5A

02What's in Loranger's water

Every contaminant flagged in Loranger, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.5 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Loranger's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 148 violations on record, including 19 health-based violations. 92 remain unresolved.

2 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

14 health-based in 10 yrs 39 monitoring & paperwork 53 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Loranger's water quality assessment. Grade: F (42/100).
Violation3 drinking water violations recordedContaminants: Public Notice, Lead and Copper Rule.Open
Violation10 drinking water violations recorded10 health-based. Contaminants: Groundwater Rule.Open
Violation2 drinking water violations recordedContaminants: Lead and Copper Rule.Open
Lead, 90th percentileppb · lower is better
0510152025EPA action level · 15 ppb2004 — 1 ppb2007 — 19 ppb2009 — 3 ppb2010 — 1 ppb2013 — 1 ppb2015 — 2 ppb2016 — 2 ppb2018 — 0 ppb2019 — 0 ppb2021 — 0 ppb2022 — 0 ppb2024 — 0 ppb2025 — 1.5 ppb11.520042010201620212025

Up 0.50 ppb since 2004. Latest reading: 1.5 ppb (2025) — 10% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Loranger's water comes from

Loranger's drinking water is drawn from underground aquifers through wells.

Source

Groundwater

Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.

Treatment

Local treatment

Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.

Distribution

4 systems

4 water systems, operated under private ownership.

Delivery

1,596 people

Residents served across Loranger's service area.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals. Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds. The system is operated by private ownership and serves approximately 1,596 people through 4 water systems.

System namePWSIDPopulationSource
PONDEROSA RANCHES SUBDIVISION LA1103077 579 Groundwater
VILLAGE GUTHRIE SUBDIVISION LA1103066 405 Groundwater
CENTRAL PARK SUBDIVISION LA1103088 342 Groundwater
FOREST GLEN SD LA1103137 270 Groundwater

Water bodies near Loranger

Tchefuncte River Near Folsom · river Tangipahoa River Near Amite · river Tangipahoa R Nr Tickfaw, La. · river Chappepeela Creek Southeast Of Loranger, La. · river Tangipahoa River At Robert · river

These water bodies shape the regional watershed and can indirectly affect groundwater quality.

05How Loranger compares

Scores for nearby Louisiana cities on one line, with the average marked.

Jefferson
85.8 · A-
Baton Rouge
43.2 · F
Loranger (this city)
42 · F
Shreveport
36.5 · F
Lafayette
35.1 · F
New Orleans
34.1 · F

dashed line = Louisiana average (53/100)

Loranger scores 42/100below the Louisiana average of 53/100. It outscores 4 of 10 nearby cities. Full Louisiana rankings →

St. Tammany Parish water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

06What to do at home

Steps matched to what testing actually found in Loranger's water — not generic advice.

Extra protection

A basic carbon filter still helps

Loranger's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Loranger alerts

We refresh EPA data monthly and surface new violations, advisories, and boil-water notices for your county on this page.

All water alerts →

Frequently asked questions

Is Loranger, LA tap water safe to drink?

Loranger's water quality earned a grade of F (42/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #274 out of 309 cities tested in Louisiana.

What contaminants are in Loranger's water?

Lead was measured at 1.5 ppb (90th percentile). 148 violations are on record.

How is Loranger's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Loranger?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Loranger's water come from?

Loranger's water is sourced from Groundwater. The city has 4 water systems serving approximately 1,596 residents.

What health violations has Loranger's water system had?

Loranger has 19 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 92 violations remain unresolved.

Is Loranger's groundwater at risk of contamination?

Loranger uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 148 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Loranger's water compare to other cities?

Loranger ranks #274 out of 309 cities in Louisiana (better than 11% of state cities) and #14588 out of 15382 cities nationally (5th percentile). The grade of F reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

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Service area: 1 ZIP code across St. Tammany Parish.
Show ZIP codes 70446
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.