Velarion Records
Follow this air source
Unsubscribe any time.

ICIS-AIR MO0000002918300027

MEMC LLC-ST. PETERS PLANT, O'Fallon, MO: Clean Air Act compliance record, inspections, violations, penalties

MEMC LLC-ST. PETERS PLANT is on EPA’s ICIS-AIR register at 501 PEARL DRIVE, O'Fallon in St. Charles County, Missouri: operating status operating, emissions classification minor source, current violation status “No Violation Identified”. St. Charles 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 2 events on file is a compliance evaluation dated March 2, 2022.
  • Its events on file run from March 11, 2019 through March 2, 2022.
  • All 2 of its compliance evaluations on file are full compliance evaluations.
  • The register holds 142 air-emissions sources in St. Charles County, Missouri.

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

Identity

Facility as filedMEMC LLC-ST. PETERS PLANT
ICIS-AIR IDMO0000002918300027
EPA facility registry ID110000442101
Operating statusOperating
Emissions classificationMinor source
Current violation status (HPV field)No Violation Identified
Address501 PEARL DRIVE, O'Fallon, MO 63366
CountySt. Charles County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Computer and electronic product manufacturing (NAICS 3344)
SIC code3674
EPA region07

Programs and pollutants

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

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
March 2, 2022FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 11, 2019FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

What high-priority and federally reportable violations mean.

EPA’s violation history file holds no violation for ICIS-AIR MO0000002918300027 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 MO0000002918300027 since January 1, 2017.

Stack tests

EPA’s stack test file holds no test at ICIS-AIR MO0000002918300027 since January 1, 2017.

Watch MEMC LLC-ST. PETERS PLANT

One source — $99/month

Billing

Privacy

Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110000442101).

Other air sources in Missouri beside MEMC LLC-ST. PETERS PLANT

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