Maple Park Water Quality
Illinois
According to EPA SDWIS, Maple Park, Illinois is served by 1 community water system covering about 1,484 people. The same extract lists 6 health-based violation records, most recently coded 4109 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Maple Park, Illinois is delivered through 1 EPA-regulated community water system serving an estimated 1,484 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 6 violation records across the 1 active community system shown here. Monitoring and reporting records are not present in the extract. The records carry 2 distinct EPA contaminant codes: Gross Alpha Particle Activity, Combined Radium (-226 and -228).
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Illinois drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| MAPLE PARK | 1,484 | 6 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| MAPLE PARK | Gross Alpha Particle Activity | 2025-10-01 |
| MAPLE PARK | Combined Radium (-226 and -228) | 2025-10-01 |
| MAPLE PARK | Combined Radium (-226 and -228) | 2025-07-01 |
| MAPLE PARK | Combined Radium (-226 and -228) | 2025-07-01 |
| MAPLE PARK | Gross Alpha Particle Activity | 2025-07-01 |
| MAPLE PARK | Gross Alpha Particle Activity | 2025-07-01 |
What are Maple Park's health-based records for?
Maple Park's health-based violation records carry 2 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Combined Radium (-226 and -228) | 3 | 1 |
| Gross Alpha Particle Activity | 3 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Maple Park, Illinois? ▼
How many water violations does Maple Park have in this EPA extract? ▼
What contaminants were found in Maple Park water? ▼
How many water systems serve Maple Park? ▼
Where does Maple Park get its drinking water? ▼
How does Maple Park compare in Illinois?
Of the 1,034 Illinois places with at least one community water system on file, Maple Park ranks #692 by number of systems (1).
Either side of it: Manito (1), Mansfield (1), Mapleton (1), Maquon (1)
About This Data
Figures here are the current EPA SDWIS extract joined to the 1 community water system whose service area lists Maple Park, ranked against the 1,034 Illinois places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.