ICIS-AIR WI0000005502537304

DEMETER AG-GRID LLC, Dane, WI: Clean Air Act compliance record, inspections, violations, penalties

OperatingOperating status
Synthetic minor sourceEmissions classification
No Violation IdentifiedCurrent violation status, as filed
4Compliance evaluations since January 1, 2017
1High-priority violations since January 1, 2017
0Formal enforcement actions since January 1, 2017

DEMETER AG-GRID LLC is on EPA’s ICIS-AIR register at 6321 CUBA VALLEY RD, Dane in Dane County, Wisconsin: operating status operating, emissions classification synthetic minor source, current violation status “No Violation Identified”. Dane County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

What stands out

The newest of the 16 events on file is a compliance evaluation dated September 10, 2026.
Its events on file run from January 11, 2017 through September 10, 2026.
Of its 4 compliance evaluations on file, 2 are a full compliance evaluation.
1 of the 4 violation determinations on file is high-priority.
The register holds 45 air-emissions sources in Dane County, Wisconsin.

Every line is computed by formula from the record’s stored figures; nothing is estimated.

Identity

Facility as filed	DEMETER AG-GRID LLC
ICIS-AIR ID	WI0000005502537304
EPA facility registry ID	110043581371
Operating status	Operating
Emissions classification	Synthetic minor source
Current violation status (HPV field)	No Violation Identified
Address	6321 CUBA VALLEY RD, Dane, WI 535299635
County	Dane County
In a nonattainment county	Yes (EPA Green Book)
Industry (NAICS)	Oil and gas extraction (NAICS 2111)
EPA region	05

Programs and pollutants

The program, pollutant and Title V files are not loaded: what this page covers.

Compliance evaluations

4Evaluations since January 1, 2017
2Full compliance evaluations

Date	What EPA recorded	Agency	Programs
September 10, 2026	PCE Off-Site	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 16, 2022	FCE On-Site	State	Federally-Enforceable State Operating Permit - Non Title V
July 16, 2018	FCE On-Site	State	Federally-Enforceable State Operating Permit - Non Title V
March 1, 2017	PCE Off-Site	State	Federally-Enforceable State Operating Permit - Non Title V

Violations

4Violation determinations since January 1, 2017
1Of them high-priority

What high-priority and federally reportable violations mean.

Date	What EPA recorded	Agency	Programs
September 10, 2026	Earliest FRV determination	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 10, 2026	Earliest FRV determination	State	State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 5, 2017	Earliest FRV determination	State	Federally-Enforceable State Operating Permit - Non Title V
January 11, 2017	HPV day-zero determination	State	Federally-Enforceable State Operating Permit - Non Title V

Enforcement and penalties

0 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.

Informal enforcement

Date	What EPA recorded	Agency
September 10, 2026	Warning Letter	State
May 5, 2017	Notice of Violation	State
March 8, 2017	Notice of Violation	State

Stack tests

5Stack tests since January 1, 2017
0Recorded as failed

Date	What EPA recorded	Agency
January 8, 2020	Pass	State
April 24, 2019	Pass	State
December 4, 2018	Pass	State
March 6, 2018	Pass	State
February 27, 2017	Pass	State

Watch DEMETER AG-GRID LLC

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110043581371).

Other air sources in Wisconsin beside DEMETER AG-GRID LLC

EPA ICIS-AIR download, loaded September 14, 2026.