Public water system record

Jons MHP

Serves an area of LaSalle County, IL · 92 people served

Federal records show 1 health-based violation and 7 monitoring/reporting issues for Jons MHP in the last ten years. The most serious issue in this window was a resolved Nitrate violation.

  • IL0990020
  • SANDWICH
  • IL
  • 92 served

System profile

Source water Groundwater
ZIP 60548
EPA system ID IL0990020

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
7

Key facts

  • Jons MHP draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Nitrate, 11 mg/L, federal limit 10 mg/L (1.1 times the limit), 2021.
  • Most recent formal enforcement: compliance order (no penalty) by Illinois, March 2022.
  • Record on file since 1992, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 35 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
330 Oct 1, 2021 Resolved Yes

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Nitrate
Monitoring and reporting
Jun 1, 2025 Resolved
Nitrate
Monitoring and reporting
Jun 1, 2025 Resolved
Nitrate
Monitoring and reporting
May 1, 2025 Resolved
Nitrate
Monitoring and reporting
May 1, 2025 Resolved
Public Notice
OTHER
Jan 16, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
Dec 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved

Full record since 1992

EPA's records for Jons MHP go back to 1992. Before October 19, 2016 they list 6 health-based violations (3 resolved, 3 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 6 4
2010 to October 18, 2016 0 1
October 19, 2016 to 2019 0 1
2020s 1 6

Most recent health-based violation before October 19, 2016: Nitrate (acute), began January 1995, Resolved.

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Jan 1, 1995 Resolved
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1994 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jul 1, 1994 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 1993 Archived
Total Coliform (acute)
Contaminant limit exceeded
Jul 1, 1993 Archived
Nitrate (acute)
Contaminant limit exceeded
Oct 4, 1992 Archived

Enforcement actions

Illinois regulators and EPA took 2 formal enforcement actions against Jons MHP and issued 1 ban on new connections between 1993 and 2022. The most recent was a compliance order (no penalty) in March 2022.

Date By Action Violations covered
Mar 8, 2022 Illinois Compliance order (no penalty) 1 violation (1 health-based): Nitrate
Jun 21, 1994 EPA Compliance order (no penalty) 1 violation (1 health-based): Nitrate
Mar 15, 1993 Illinois Ban on new connections or service extensions 1 violation (1 health-based): Nitrate

What the violations mean

Nitrate

1 incident

Nitrate exceeded the federal limit

High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome

Where the water comes from

Jons MHP draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Jons MHP 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 Jons MHP 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.