Velarion Records

EPA Air · stack tests by county and year

Air-emissions stack tests in Howard County, Maryland, 2017

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Howard County, Maryland during 2017. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Howard County facility page.

Howard County, Maryland, 2017

Air-emissions stack tests in Howard County, other years

Air-emissions stack tests recorded in Howard County, Maryland, 2017

DateFacilityKindAgency
2017-12-19TRANSCONTINENTAL GAS PIPELINEPassState
2017-05-18ALPHA RIDGE LANDFILLPassState
2017-03-01TRANSCONTINENTAL GAS PIPELINEPassState

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.

What this page shows

This page covers Clean Air Act facilities in the EPA air register with stack tests in Howard county, MD, in 2017. Stack tests recorded in 2017: 3.