Waterloo Water Quality
Indiana
According to EPA SDWIS, Waterloo, Indiana is served by 5 community water systems covering about 3,393 people. The same extract lists 24 health-based violation records, most recently coded 0700 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Waterloo, Indiana is delivered through 5 EPA-regulated community water systems serving an estimated 3,393 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 24 violation records across the 5 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Groundwater Rule, Arsenic, LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule. 3 TRI-reporting industrial facilities are also located within the city limits.
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 Indiana 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 |
|---|---|---|---|
| BUTLER WATER DEPARTMENT | 2,700 | 0 | Clean |
| ST. JOE WATER DEPARTMENT | 460 | 5 | Health |
| GOLDEN ACRES MOBILE HOME PARK | 112 | 9 | Health |
| GRATE PROPERTIES MHC | 66 | 0 | Clean |
| OR-AN TRAILER COURT | 55 | 10 | 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 |
|---|---|---|
| ST. JOE WATER DEPARTMENT | Groundwater Rule | 2025-08-08 |
| ST. JOE WATER DEPARTMENT | Groundwater Rule | 2025-08-08 |
| ST. JOE WATER DEPARTMENT | Groundwater Rule | 2025-08-08 |
| OR-AN TRAILER COURT | Arsenic | 2025-01-01 |
| OR-AN TRAILER COURT | Arsenic | 2025-01-01 |
| OR-AN TRAILER COURT | Arsenic | 2025-01-01 |
| ST. JOE WATER DEPARTMENT | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| ST. JOE WATER DEPARTMENT | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| OR-AN TRAILER COURT | Arsenic | 2024-10-01 |
| OR-AN TRAILER COURT | Arsenic | 2024-10-01 |
| OR-AN TRAILER COURT | Arsenic | 2024-10-01 |
| OR-AN TRAILER COURT | Arsenic | 2024-10-01 |
| OR-AN TRAILER COURT | Groundwater Rule | 2024-08-26 |
| OR-AN TRAILER COURT | Groundwater Rule | 2024-08-26 |
| OR-AN TRAILER COURT | Groundwater Rule | 2024-08-26 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2024-02-10 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2023-11-20 |
| GOLDEN ACRES MOBILE HOME PARK | Revised Total Coliform Rule | 2023-11-20 |
What are Waterloo's health-based records for?
Waterloo's health-based violation records carry 4 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 |
|---|---|---|
| Revised Total Coliform Rule | 9 | 1 |
| Arsenic | 7 | 1 |
| Groundwater Rule | 6 | 2 |
| Lead and Copper Rule Revisions | 2 | 1 |
TRI Facilities in Waterloo
| Facility | Total Releases |
|---|---|
| Nucor Building Systems | 22.3K lbs |
| Nipg Waterloo | 2.2K lbs |
| Oldcastle Lawn & Garden | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Waterloo, Indiana? ▼
How many water violations does Waterloo have in this EPA extract? ▼
What contaminants were found in Waterloo water? ▼
How many water systems serve Waterloo? ▼
Where does Waterloo get its drinking water? ▼
Are there pollution sources near Waterloo? ▼
How does Waterloo compare in Indiana?
Of the 420 Indiana places with at least one community water system on file, Waterloo ranks #17 by number of systems (5).
Either side of it: Peru (5), Terre Haute (5), Aurora (4), Centerpoint (4)
About This Data
Figures here are the current EPA SDWIS extract joined to the 5 community water systems whose service area lists Waterloo, ranked against the 420 Indiana 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.