Dieterich Water Quality
Illinois
According to EPA SDWIS, Dieterich, Illinois is served by 15 community water systems covering about 41,375 people. The same extract lists 36 health-based violation records, most recently coded 0300 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Dieterich, Illinois is delivered through 15 EPA-regulated community water systems serving an estimated 41,375 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 36 violation records across the 15 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: Interim Enhanced Surface Water Treatment Rule, TTHM, Lead and Copper Rule, Total Haloacetic Acids (HAA5), Coliform (TCR).
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 |
|---|---|---|---|
| EJ WATER COOPERATIVE | 29,720 | 2 | Health |
| EJ WATER-MCWC | 2,075 | 5 | Health |
| SHAWNEE CORRECTIONAL CENTER | 1,617 | 0 | Clean |
| HEARTVILLE PWD | 1,092 | 0 | Clean |
| ROBINSON CORRECTIONAL CENTER | 1,085 | 0 | Clean |
| EJ WATER-SANGCHRIS | 1,025 | 21 | Health |
| DIETERICH | 900 | 0 | Clean |
| LAWRENCE COUNTY CORRECTIONAL CENTER | 870 | 0 | Clean |
| EJ WATER-WITT | 785 | 2 | Health |
| EJ WATER-WATSON | 754 | 1 | Health |
| EJ WATER-NIANTIC | 648 | 0 | Clean |
| EJ WATER-COALTON | 317 | 0 | Clean |
| SAINTE MARIE | 243 | 0 | Clean |
| EJ WATER-MONTROSE | 201 | 5 | Health |
| UNITED REGIONAL WATER COOP | 43 | 0 | Clean |
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 |
|---|---|---|
| EJ WATER-MCWC | Interim Enhanced Surface Water Treatment Rule | 2025-12-01 |
| EJ WATER-MCWC | Interim Enhanced Surface Water Treatment Rule | 2025-11-01 |
| EJ WATER-MCWC | Interim Enhanced Surface Water Treatment Rule | 2025-10-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-07-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-07-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-07-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-07-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-04-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-04-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-04-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-04-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-04-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-01-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-01-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-01-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-01-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-01-01 |
| EJ WATER-SANGCHRIS | TTHM | 2024-01-01 |
| EJ WATER-SANGCHRIS | TTHM | 2023-10-01 |
| EJ WATER-SANGCHRIS | TTHM | 2023-10-01 |
| EJ WATER-SANGCHRIS | TTHM | 2023-10-01 |
| EJ WATER-SANGCHRIS | TTHM | 2023-10-01 |
| EJ WATER-SANGCHRIS | TTHM | 2023-10-01 |
| EJ WATER-SANGCHRIS | TTHM | 2023-10-01 |
| EJ WATER-WATSON | Lead and Copper Rule | 2021-11-30 |
| EJ WATER-MONTROSE | TTHM | 2020-07-01 |
| EJ WATER-MONTROSE | TTHM | 2020-04-01 |
| EJ WATER-MONTROSE | TTHM | 2020-01-01 |
| EJ WATER-MCWC | Total Haloacetic Acids (HAA5) | 2019-10-01 |
| EJ WATER-MONTROSE | TTHM | 2019-10-01 |
| EJ WATER-MCWC | Total Haloacetic Acids (HAA5) | 2019-07-01 |
| EJ WATER COOPERATIVE | Coliform (TCR) | 2015-12-01 |
| EJ WATER COOPERATIVE | Coliform (TCR) | 2015-12-01 |
| EJ WATER-WITT | Lead and Copper Rule | 1995-02-01 |
| EJ WATER-WITT | Lead and Copper Rule | 1994-07-07 |
| EJ WATER-MONTROSE | Lead and Copper Rule | 1994-01-01 |
What are Dieterich's health-based records for?
Dieterich's health-based violation records carry 5 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 |
|---|---|---|
| Tthm | 25 | 2 |
| Lead and Copper Rule | 4 | 3 |
| Interim Enhanced Surface Water Treatment Rule | 3 | 1 |
| Total Haloacetic Acids (HAA5) | 2 | 1 |
| Coliform (TCR) | 2 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Dieterich, Illinois? ▼
How many water violations does Dieterich have in this EPA extract? ▼
What contaminants were found in Dieterich water? ▼
How many water systems serve Dieterich? ▼
Where does Dieterich get its drinking water? ▼
How does Dieterich compare in Illinois?
Of the 1,034 Illinois places with at least one community water system on file, Dieterich ranks #5 by number of systems (15).
Either side of it: Glenview (34), Peru (18), Skokie (15), Centralia (13)
About This Data
Figures here are the current EPA SDWIS extract joined to the 15 community water systems whose service area lists Dieterich, 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.