WaterVerge

Is Interlochen, MI Tap Water Safe to Drink?

Graded B, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓

750 residents served 1 water system PWSID: MI0003365
Overall Score
79.7 / 100
Violations
1 active
Last Updated
May 2026
Source
Groundwater
#357 of 520 in Michigan Top 52% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
79.7/100
waterverge.com
B 79.7/100

Interlochen, MI — Water Quality Report

Interlochen's drinking water received a grade of B (79.7 out of 100), indicating good water quality. The city's 1 water system serves approximately 750 residents using groundwater.

Lead levels were measured at 11.0 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 1 violation on record, including 0 health-based violations. 1 remains unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Interlochen's water

Interlochen ranks #357 out of 520 cities in Michigan for water quality, placing it below average in the state.

Interlochen 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.

While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.

As a small community water system, Interlochen may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
79.7 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
44.7/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
13/20
C
Lead at 11.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Interlochen, MI water safe to drink?

Use Caution

Interlochen's tap water meets most EPA standards but has areas that warrant attention. With a grade of B (79.7/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 750 residents using groundwater (wells).

1
Active Violations
11.0 ppb
Lead (90th %ile)
1 event
Disaster History

Recent water quality updates for Interlochen

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Interlochen's water quality assessment. Grade: B (79.7/100).

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3225). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Interlochen's water supply.

Lead Elevated
Detected: 11.0 ppb Limit: 15 ppb (EPA Action Level)

Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.

Violation history

Interlochen's water system has 1 total violation on record, including 0 health-based violations. 1 remain unresolved.

Flood & environmental risk

Grand Traverse County has experienced 1 federally declared disaster since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Boardman River.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3225

Where does Interlochen's water come from?

Interlochen's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 750 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Boardman River (river).

What Interlochen residents can do

Request your utility's CCR

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.

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Near Limit
11.0 ppb
EPA Action Level: 15 ppb · 73% of limit
Near LimitFilter: NSF-53
Compliance Record

Violation summary

1
Total violations
0
Health-based
1
Active / unresolved
Compliance Record

Violations & advisories

1 Total
1 Active
0 Health-based
0 Resolved
Active
Compliance Violation
Monitoring 0
Industrial pollution

Top industrial polluters within 10 miles of Interlochen

Industrial polluters nearby

Reported releases to surface water by facilities near Interlochen, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
GRAND TRAVERSE STAMPING
Transportation Equipment · AEES INC
TRAVERSE CITY, MI49686
9.7 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

1
Declared disasters
Sep 2005
Most recent
Hurricane
Most common type

Grand Traverse County has experienced 1 federally declared disaster since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3225

Recommended water filters

Based on contaminants detected in Interlochen's water supply, we recommend the following filter types.

🚰
For Lead
Reverse Osmosis or NSF 53-Certified Pitcher
Lead detected at 11.0 ppb
Read our guide →

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 11.0 15 ppb Inorganic Near Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 20.0 ppb from 1995 (31.0 ppb) to 2024 (11.0 ppb).
Contaminant Rankings

See how Interlochen compares by contaminant

Explore where Interlochen ranks among all Michigan cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
750
Water Systems
1
Water Source

Where Interlochen's water comes from

Groundwater

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

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 750 people through 1 water system.

Local Hydrology

Water bodies near Interlochen

Interlochen is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Boardman River
river
Infrastructure

Water systems serving Interlochen

System Name PWSID Population Source
INTERLOCHEN CENTER FOR THE ARTS MI0003365 750 GW
Regional Comparison

How Interlochen compares

Full Michigan rankings →

Interlochen's score of 79.7/100 is above the average of 70/100 among major Michigan cities. It outscores 5 of 10 nearby cities.

Interlochen (this city)
79.7
Detroit
84.1
Ann Arbor
51.5
Lansing
57.3
Michigan avg
70
City Profile

About Interlochen, MI

Wikipedia →

Interlochen is an unincorporated community and census-designated place (CDP) in Grand Traverse County in the U.S. state of Michigan. At the 2020 census, the population was 694, up from 583 at the 2010 census. The community is located within Green Lake Township, and is home to a post office operating with ZIP Code 49643.

Economic Profile
$96,250
Median Income
$170,745
Median Home Value
$727/mo
Median Rent
0%
Unemployment
Community
62.4
Median Age
168
People / sq mi
28.8%
College Educated
85.4%
Homeownership
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Frequently asked questions

Is Interlochen, MI tap water safe to drink?

Interlochen's water quality earned a grade of B (79.7/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #357 out of 520 cities tested in Michigan.

What contaminants are in Interlochen's water?

Lead was measured at 11.0 ppb (90th percentile). 1 violation is on record.

How is Interlochen'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 Interlochen?

While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.

Where does Interlochen's water come from?

Interlochen's water is sourced from Groundwater. The city has 1 water system serving approximately 750 residents.

Is Interlochen's groundwater at risk of contamination?

Interlochen 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 1 violation 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 Interlochen's water compare to other cities?

Interlochen ranks #357 out of 520 cities in Michigan (better than 31% of state cities) and #8175 out of 15744 cities nationally (48th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Interlochen's small water system affect quality?

Interlochen's system serves approximately 750 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 1 violation on record.