Rule 3171 fees apply to all major sources of Volatile Organic Compounds (VOCs) or Oxides of Nitrogen (NOx) in the San Joaquin Valley air district.

The Los Angeles Regional Water Quality Control Board (Water Board) is continuing to refine the proposed Commercial, Industrial, and Institutional (CII) Stormwater Permit, a regional permit aimed at reducing stormwater pollution from large, privately owned commercial, industrial, and institutional sites in the Dominguez Channel / Los Angeles & Long Beach Inner Harbor or the Los Cerritos Channel / Alamitos Bay watersheds in Los Angeles County.

Dates: November 11 - 12, 2025 Please join one of our Principals, Irra Core, and the EUCI ( Professional Development Courses,...

South Coast AQMD's Updated Rule 1178 Rule 1178 was established to further reduce VOC emissions from aboveground storage tanks located at...

Hydrogen production and use has become increasingly more attractive in the industrial sector, especially in the face of a global push for...

Overview of Variance process in California by the local air pollution control districts.

What you Need to Know: Image 1: California State Water Boards, Los Angeles Region 4, CII Permit Big changes are coming for southern California businesses with more than 5 acres of impervious area. A new draft NPDES storm water permit (CII Permit) has been released for comment that applies to Commercial, Industrial, and Institutional (CII) sites in the following two Southern CA watersheds: Dominguez Channel/Greater Los Angeles and Long Beach Harbor Watershed Los Cerritos Chan

Operators of on-road vehicles in Oregon with a gross vehicle weight rating (GVWR) over 8,500 pounds that meet any of the following...

Will your local wastewater agency tell you if your business needs a wastewater permit or is subject to wastewater requirements? Don’t...

Some states have already started sending out reminders to Large Quantity Generators (LQGs) of Resource Conservation and Recovery Act...

Oregon DEQ (ODEQ) now requires independent 3rd party verification of greenhouse gas emissions reported under its Greenhouse Gas Reporting...

If you’re a business with on-road or off-road vehicles operating in California, you’ve likely spent the past 10+ years strategically...

As industries take stock of their carbon footprint and look at ways to reduce their greenhouse gas impacts, one of the first questions...

What is Environmental Justice? How does it impact you and your community? Federal, state and local agencies have embraced environmental...

Has your facility been asked to prepare a health risk analysis recently? In the last few years California has experienced a wave of Toxic...

Ashworth Leininger Group staff and families were excited to volunteer, along with several other local organizations and individuals, for...

Time flies when you’re having fun! This August, ALG celebrates its 25th anniversary. Ev Ashworth and Bart Leininger first opened the...

Both owners & operators of large warehouses (>100,000 sq. ft.) in the South Coast have upcoming obligations under the new South Coast...

When industry experts talk about innovative crude oil production, the application of solar energy is not the first thing that comes to...

For over 25 years, ALG has offered expert air quality and environmental consulting services to a broad spectrum of clients, agencies,...