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Public water system record

Maple Grove MHC

On record as serving Ames, Story County, IA · Serves 160 people

Federal records show 4 health-based violations and 7 monitoring/reporting issues for Maple Grove MHC in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.

  • IA0800601
  • MADRID
  • IA
  • 160 served

System profile

Source water GUP
ZIP 50156
EPA system ID IA0800601

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
7

Key facts

  • Maple Grove MHC buys its water from Xenia RWD (Boone).
  • Most recent formal enforcement: signed compliance agreement by Iowa, July 1997.
  • Record on file since 1980, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 59 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
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
 210 Jan 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
 120 Dec 1, 2016 Resolved No
Surface Water Treatment Rule
Treatment technique failure
 120 Nov 1, 2016 Resolved No
Surface Water Treatment Rule
Treatment technique failure
 120 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Public Notice
OTHER
 Apr 11, 2017 Resolved
Public Notice
OTHER
 Mar 5, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Dec 1, 2016 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Dec 1, 2016 Resolved
Revised Total Coliform Rule
Monitoring violation
 Dec 1, 2016 Resolved
Revised Total Coliform Rule
Monitoring violation
 Nov 1, 2016 Resolved
Revised Total Coliform Rule
Monitoring violation
 Oct 1, 2016 Resolved

Full record since 1980

EPA's records for Maple Grove MHC go back to 1980. Before October 19, 2016 they list 7 health-based violations (3 resolved, 4 archived by EPA without a recorded fix) and 26 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 11
1990s 6 13
2010 to October 18, 2016 1 2
October 19, 2016 to 2019 3 6

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began October 2016, Resolved.

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
 Oct 1, 2016 Resolved
Total Coliform
Contaminant limit exceeded
 Jan 1, 1999 Archived
Total Coliform
Contaminant limit exceeded
 Nov 1, 1998 Archived
Total Coliform (acute)
Contaminant limit exceeded
 Nov 1, 1998 Archived
Total Coliform (acute)
Contaminant limit exceeded
 Nov 1, 1998 Archived
Total Coliform
Contaminant limit exceeded
 Jan 1, 1994 Resolved
Total Coliform
Contaminant limit exceeded
 Nov 1, 1991 Resolved

Enforcement actions

Iowa regulators took 1 formal enforcement action against Maple Grove MHC in 1997, filed as 6 records in EPA's data. The most recent was a signed compliance agreement in July 1997.

Date By Action Violations covered
Jul 1, 1997 Iowa Signed compliance agreement 6 violations: Antimony, Total, Nitrate, 1,2,4-Trichlorobenzene, Nitrite, LASSO

What the violations mean

Surface Water Treatment Rule

3 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Stage 1 Disinfection Byproducts Rule

1 incident

The system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule

Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk

Where the water comes from

Maple Grove MHC buys its water from Xenia RWD (Boone). It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Maple Grove MHC 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 Maple Grove MHC 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 Iowa.

Certified drinking water labs by state EPA guidance for private wells