Is Le Grand, IA Tap Water Safe to Drink?
Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
91.1/100
waterverge.com Le Grand, IA — Water Quality Report
Le Grand's drinking water received a grade of A (91.1 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 910 residents using purchased ground water.
Lead levels were measured at 1.1 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 9 violations on record, including 2 health-based violations. 2 remain unresolved.
What to know about Le Grand's water
Le Grand ranks #154 out of 436 cities in Iowa for water quality, placing it mid-range in the state.
Le Grand purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Le Grand may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Le Grand, IA water safe to drink?
Le Grand's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (91.1/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 910 residents using groundwater (wells).
Recent water quality updates for Le Grand
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Le Grand's water quality assessment. Grade: A (91.1/100).
2 health-based. Contaminants: Coliform (TCR).
Contaminants: Consumer Confidence Rule.
Contaminants: Atrazine.
Key contaminant findings
Based on the most recent EPA sampling data for Le Grand's water supply.
Well within EPA limits.
Violation history
Le Grand's water system has 9 total violations on record, including 2 health-based violations. 2 remain unresolved.
Where does Le Grand's water come from?
Le Grand's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 910 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Le Grand residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Le Grand
Industrial polluters nearby
Reported releases to surface water by facilities near Le Grand, ranked by pounds discharged annually.
Total reported releases to surface water: 21 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
FISHER CONTROLS INTERNATIONAL LLC MARSHALLTOWN, IA50158 | Manganese | 21 | 6.3 mi |
DIAMOND VOGEL INC. MARSHALLTOWN, IA50158 | — | — | 7.2 mi |
LENNOX INDUSTRIES INC MARSHALLTOWN, IA50158 | — | — | 6.6 mi |
SWIFT PORK MARSHALLTOWN, IA50158 | — | — | 7.0 mi |
FORTERRA CONCRETE PRODUCTS - MARSHALLTOWN MARSHALLTOWN, IA50158 | — | — | 5.5 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.1 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Le Grand compares by contaminant
Explore where Le Grand ranks among all Iowa cities for specific contaminants.
Water source & infrastructure
Where Le Grand's water comes from
Le Grand purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Le Grand's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 910 people through 1 water system.
Water systems serving Le Grand
| System Name | PWSID | Population | Source |
|---|---|---|---|
| LE GRAND WATER WORKS | IA6457070 | 910 | GWP |
How Le Grand compares
Full Iowa rankings →Le Grand's score of 91.1/100 is above the average of 72/100 among major Iowa cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Iowa rankings →About Le Grand, IA
Wikipedia →Le Grand is a city in Marshall and Tama counties in the U.S. state of Iowa. The population was 905 at the time of the 2020 census.
Learn more about your water
Guides and resources related to Le Grand's water quality findings.
Explore water quality across Marshall
Frequently asked questions
Is Le Grand, IA tap water safe to drink?
Le Grand's water quality earned a grade of A (91.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #154 out of 436 cities tested in Iowa.
What contaminants are in Le Grand's water?
Lead was measured at 1.1 ppb (90th percentile). 9 violations are on record.
How is Le Grand'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 Le Grand?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Le Grand's water come from?
Le Grand's water is sourced from Purchased ground water. The city has 1 water system serving approximately 910 residents.
What health violations has Le Grand's water system had?
Le Grand has 2 health-based violations on record. The most recent violation was recorded in January 2002. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Le Grand's groundwater at risk of contamination?
Le Grand 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 9 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 Le Grand's water compare to other cities?
Le Grand ranks #154 out of 436 cities in Iowa (better than 65% of state cities) and #1885 out of 15744 cities nationally (88th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Le Grand's small water system affect quality?
Le Grand's system serves approximately 910 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 9 violations on record.