Public water system record
Sandwich
Serves Sandwich, DeKalb County, IL · 7,156 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Sandwich in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Sandwich draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).
- Record on file since 1977, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 5 lead and 152 unknown out of 2,777 service lines.
Check whether Sandwich serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Resolved |
Full record since 1977
EPA's records for Sandwich go back to 1977. Before October 19, 2016 they list 3 health-based violations (1 resolved, 2 archived by EPA without a recorded fix) and 14 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1980s | 0 | 7 |
| 1990s | 3 | 6 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began July 1998, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Trichloroethylene
Contaminant limit exceeded
|
Jul 1, 1990 | Archived |
|
Trichloroethylene
Contaminant limit exceeded
|
Apr 1, 1990 | Archived |
Where the water comes from
Sandwich draws water from 3 wells (1 of them for emergency, seasonal or other part-time use). 2 other community water systems buy water from Sandwich.
Community systems that buy water from it
- Sandwich Estates MHP Chicago, IL
- Triangle Manufactured Home Community Arlington Heights, IL
Annual water quality report
Sandwich must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Illinois.
Certified drinking water labs by state EPA guidance for private wells