Public water system record
Lostant
Serves Lostant, LaSalle County, IL · 463 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Lostant in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Lostant draws water from 2 wells.
- Most recent formal enforcement: signed compliance agreement by Illinois, March 2005.
- Record on file since 1977, with 21 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 219 unknown out of 219 service lines.
Check whether Lostant 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
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 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
Full record since 1977
EPA's records for Lostant go back to 1977. Before October 19, 2016 they list 21 health-based violations (21 resolved) and 9 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1980s | 3 | 0 |
| 1990s | 8 | 2 |
| 2000s | 10 | 5 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 1 | 3 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began October 2004, Resolved.
Show all 21 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jul 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Apr 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Apr 1, 1999 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Sep 1, 1996 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Aug 1, 1995 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
Mar 22, 1995 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 12, 1995 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 1995 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Sep 1, 1992 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
|
May 18, 1990 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 1988 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Sep 1, 1988 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Sep 14, 1984 | Resolved |
Enforcement actions
Illinois regulators took 4 formal enforcement actions against Lostant between 1995 and 2005. The most recent was a signed compliance agreement in March 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 29, 2005 | Illinois | Signed compliance agreement | 2 violations: Public Notice |
| Sep 10, 2003 | Illinois | Signed compliance agreement | 17 violations (17 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Nov 13, 2001 | Illinois | Signed compliance agreement | 10 violations (10 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Mar 22, 1995 | Illinois | Signed compliance agreement | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Lostant draws water from 2 wells.
Annual water quality report
Lostant 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Lostant for a copy.
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