ICIS-AIR NJ00075889
DIAMOND MATERIALS LLC, Stow Creek Landing, NJ: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Synthetic minor sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 1Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
DIAMOND MATERIALS LLC is on EPA’s ICIS-AIR register at 122 OLD COHANSEY RD, Stow Creek Landing in Cumberland County, New Jersey: operating status operating, emissions classification synthetic minor source, current violation status “No Violation Identified”. Cumberland 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 1 events on file is a compliance evaluation dated March 17, 2026.
- All 1 of its compliance evaluations on file are full compliance evaluations.
- The register holds 177 air-emissions sources in Cumberland County, New Jersey.
Every line is computed by formula from the record’s stored figures; nothing is estimated.
Identity
| Facility as filed | DIAMOND MATERIALS LLC |
|---|---|
| ICIS-AIR ID | NJ00075889 |
| EPA facility registry ID | 110071813808 |
| Operating status | Operating |
| Emissions classification | Synthetic minor source |
| Current violation status (HPV field) | No Violation Identified |
| Address | 122 OLD COHANSEY RD, Stow Creek Landing, NJ 08302 |
| County | Cumberland County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Mining and quarrying (NAICS 2123) |
| EPA region | 02 |
Programs and pollutants
The program, pollutant and Title V files are not loaded: what this page covers.
Compliance evaluations
- 1Evaluations since January 1, 2017
- 1Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| March 17, 2026 | FCE On-Site | State | State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Violations
- 0Violation determinations since January 1, 2017
- 0Of them high-priority
What high-priority and federally reportable violations mean.
EPA’s violation history file holds no violation for ICIS-AIR NJ00075889 since January 1, 2017.
Enforcement and penalties
0 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.
Informal enforcement
EPA’s informal action file holds no notice or warning for ICIS-AIR NJ00075889 since January 1, 2017.
Stack tests
- 0Stack tests since January 1, 2017
- 0Recorded as failed
EPA’s stack test file holds no test at ICIS-AIR NJ00075889 since January 1, 2017.
Watch DIAMOND MATERIALS LLC
Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110071813808).
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EPA ICIS-AIR download, loaded September 14, 2026.