Clean Air Act stationary source · ICIS-AIR NC0000003704100406
MARTIN MARIETTA MATERIALS, INC. - CENTRAL ROCK QUARRY, Greensboro, NC: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Minor sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 5Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
MARTIN MARIETTA MATERIALS, INC. - CENTRAL ROCK QUARRY, at 3957 LIBERTY ROAD, Greensboro in Guilford County, North Carolina, is an operating minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. Guilford County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.
Identity
| Facility as filed | MARTIN MARIETTA MATERIALS, INC. - CENTRAL ROCK QUARRY |
|---|---|
| ICIS-AIR ID | NC0000003704100406 |
| EPA facility registry ID | 110018826788 |
| Operating status | Operating |
| Emissions classification | Minor source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | 3957 LIBERTY ROAD, Greensboro, NC 27406 |
| County | Guilford County |
| In a nonattainment county | Yes (EPA Green Book) |
| Industry (NAICS) | Mining and quarrying (NAICS 2123) |
| SIC code | 1423 |
| EPA region | 04 |
Cited to the EPA ICIS-AIR facility file (ECHO download).
Programs and pollutants
Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs MARTIN MARIETTA MATERIALS, INC. - CENTRAL ROCK QUARRY is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.
Compliance evaluations
- 5Evaluations since January 1, 2017
- 0Full compliance evaluations
| Date | What EPA recorded | Agency | Programs |
|---|---|---|---|
| March 26, 2026 | PCE On-Site | State | 40 CFR Part 63 Area Sources; New Source Performance Standards (Non-Major); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 2, 2024 | PCE On-Site | State | 40 CFR Part 63 Area Sources; New Source Performance Standards (Non-Major); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| June 17, 2021 | PCE On-Site | State | 40 CFR Part 63 Area Sources; New Source Performance Standards (Non-Major); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 2, 2019 | PCE On-Site | State | 40 CFR Part 63 Area Sources; New Source Performance Standards (Non-Major); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
| May 24, 2018 | PCE On-Site | State | New Source Performance Standards (Non-Major); State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards |
Violations
- 0Violation determinations since January 1, 2017
- 0Of them high-priority
A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.
EPA’s violation history file holds no violation for ICIS-AIR NC0000003704100406 since January 1, 2017.
Enforcement and penalties
0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.
Informal enforcement
EPA’s informal action file holds no notice or warning for ICIS-AIR NC0000003704100406 since January 1, 2017.
Stack tests
- 2Stack tests since January 1, 2017
- 0Recorded as failed
| Date | What EPA recorded | Agency |
|---|---|---|
| October 30, 2017 | Pass | State |
| February 13, 2017 | Pass | State |
Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.
Watch this source
One source, $99/month. A source: the register entry for a plant, refinery, kiln, generating station, or other fixed installation the agency tracks under the Clean Air Act. Choose “One source” and enter this source’s ICIS-AIR ID, NC0000003704100406.
Start the watch
- One source — $99/month
- One county — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110018826788 there.
Nearby on the register
- Air-emissions sources in Guilford County
- Every source record in Guilford County, A to Z
- Air-emissions sources in North Carolina
- Every source record in North Carolina, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.