Public water system · IL3160473
ActiveDunkin Donuts Long Grove
At a glance
Dunkin Donuts Long Grove (PWSID IL3160473) is an active transient non-community water system in Lake County, Illinois. It reports serving 500 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
500
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Dunkin Donuts Long Grove compare with other water systems in Lake County?
By EPA's size categories, Dunkin Donuts Long Grove is a very small system (500 people or fewer). Lake County has 266 active public water systems. Its population served is well below the county average of 2,442 people per system, and accounts for less than 0.1% of the 649,474 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Dunkin Donuts Long Grove is about 3.5 times that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Illinois has 1,703 active transient non-community water systems, 44% of the state's 3,872 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Dunkin Donuts Long Grove?
EPA lists Dunkin Donuts Long Grove as privately owned. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 193 of the 266 active systems in Lake County (73%) are also privately owned.
Does Dunkin Donuts Long Grove have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. The violations listed here began between January 2019 and January 2025. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Nitrate (4 of them). EPA lists 4 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 4 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Dunkin Donuts Long Grove: frequently asked questions
Who runs Dunkin Donuts Long Grove?
Dunkin Donuts Long Grove (PWSID IL3160473) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Dunkin Donuts Long Grove serve?
Dunkin Donuts Long Grove reports serving 500 people through 1 service connection in Lake County, Illinois.
Where does Dunkin Donuts Long Grove get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Dunkin Donuts Long Grove have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Dunkin Donuts Long Grove's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Dunkin Donuts Long Grove's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dunkin Donuts Long Grove is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Waukegan | Lake | 87,149 | Community | Surface water |
| Vernon Hills - Lake Co Pw | Lake | 33,207 | Community | Purchased surface water |
| Mundelein | Lake | 31,500 | Community | Purchased surface water |
| Gurnee | Lake | 30,193 | Community | Purchased surface water |
| Highland Park | Lake | 30,176 | Community | Surface water |
| Round Lake Beach | Lake | 27,200 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Dunkin Donuts Long Grove, PWSID IL3160473, Illinois”, https://aquacensus.com/water-systems/illinois/dunkin-donuts-long-grove-il3160473 (data as of October 1, 2026).