A introduction to MS4 program and municipal stormwater permits in Illinois (ILR40 NPDES Permits)

An introduction to MS4 program and municipal stormwater permits in Illinois The intent of this paper is to provide a basic understanding of the recently reissued MS4 permits in Illinois.  A brief history of stormwater regulations includes the federal Clean Water Act (CWA) of 1972 which was implemented by the United States Environmental Protection Agency…

Share

70 Years of Clean Drinking Water

For over 70 years Crawford, Murphy & Tilly (CMT) has understood the importance of clean water, particularly the water we use on a daily basis for drinking, bathing, cooking and other daily needs.  Potable water (water that is suitable for drinking) is the world’s most precious resource and our committed water professionals have internalized this…

Share
npdes map

National Pollutant Discharge Elimination System (NPDES) Permits Reissued with New, Revised and Expanded Special Conditions in Illinois

National Pollutant Discharge Elimination System (NPDES) permits are being reissued now with new, revised and expanded special conditions. The special conditions include: A New Phosphorus Feasibility Study A New Phosphorus Optimization Plan A Revised Storm Water Pollution Prevention Plan; Revised (SWPPP) New 85% Removal of BOD and TSS Special Condition Expanded Capacity Management Operation and…

Share

Land Bridge Over I-44 Takes Shape in Downtown St. Louis

After years of anticipation, St. Louis-area residents and travelers in the region are starting to see physical signs of the land bridge that will connect the Gateway Arch to the downtown area. The Missouri Department of Transportation (MoDOT) closed I-44 on Friday evening (July 11), as workers worked around the clock to erect 46 girders…

Share