01The verdict: is Interlochen water safe?
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 unresolved violation on record
EPA records show an open compliance item for this system. Most are administrative, but unresolved items are worth watching.
See what was cited ↓750 people, 1 system
All figures on this page come from federal EPA compliance and testing data for the systems serving this city.
See the systems ↓Lead is approaching its limit
Measured at 11.0 ppb — 73% of the 15 ppb limit. Within the rules, but with less headroom than you'd want.
See the ledger ↓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.
Interlochen ranks #354 out of 513 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.
02What's in Interlochen's water
Every contaminant flagged in Interlochen, 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.
Near Limit — EPA Action Level: 15 ppb
Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb — no lead level is considered safe for children. An NSF 53-certified filter provides additional protection, and running the cold tap 30 seconds after stagnation reduces exposure.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. | 11.0 | 15 | ppb | Inorganic | Near Limit |
Cities ranked by 90th-percentile lead PF PFAS in Michigan
Cities ranked by compounds detected Cu Copper in Michigan
Cities ranked by 90th-percentile copper
03Interlochen'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 1 violation on record, including 0 health-based violations. 1 remains unresolved.
All ten of the last ten years were clean — no EPA violations recorded for Interlochen.
▼ Down 20 ppb since 1995. Latest reading: 11 ppb (2024) — 73% of the action level. Sampled at higher-risk homes (90th percentile).
04Where Interlochen's water comes from
Interlochen's drinking water is drawn from underground aquifers through wells.
Groundwater
Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.
Local treatment
Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.
1 system
1 water system, operated under private ownership.
750 people
Residents served across Interlochen'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 750 people through 1 water system.
| System name | PWSID | Population | Source |
|---|---|---|---|
| INTERLOCHEN CENTER FOR THE ARTS | MI0003365 | 750 | Groundwater |
Water bodies near Interlochen
These water bodies shape the regional watershed and can indirectly affect groundwater quality.
05Pressure on Interlochen's watershed
Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.
Industrial discharge
1 facility within 10 miles reported 0 lb released to surface water in the latest EPA Toxics Release Inventory. Proximity doesn't equal tap contamination — treatment and hydrology decide — but it's pressure on the watershed.
Flood & storm history
1 federal disaster declaration on record for Grand Traverse County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.
06How Interlochen compares
Scores for nearby Michigan cities on one line, with the average marked.
dashed line = Michigan average (70/100)
Interlochen scores 79.7/100 — above the Michigan average of 70/100. It outscores 5 of 10 nearby cities. Full Michigan rankings →
84.1 / 100BGrand Rapids, MI
70.2 / 100DAnn Arbor, MI
51.5 / 100CLansing, MI
57.3 / 100FKalamazoo, MI
35 / 100DFlint, MI
45.8 / 100
Compare all cities in the county — grades, violations, and contaminant data side by side.→
07What to do at home
Steps matched to what testing actually found in Interlochen's water — not generic advice.
Filter drinking & cooking water
Basic carbon filter for extra protection. Lead detected at 11.0 ppb
Compare tested filters →Flush taps & check your service line
Lead leaches from pipes as water sits. Run cold water 30 seconds before drinking (especially mornings), and ask the utility whether your address still has a lead service line.
Lead risks explained →Watch for Interlochen 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 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 #354 out of 513 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 #354 out of 513 cities in Michigan (better than 31% of state cities) and #8079 out of 15382 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.