Dry Cleaners Regulatory Update – 6 NYCRR Part 232
The Environmental Impact of Dry Cleaners Historically, dry cleaning facilities have been hotbeds for subsurface contamination due to the solvents used in the dry cleaning process. Chlorinated solvents are the chemicals most associated with dry cleaners and their...
NYSDEC Solid Waste Enforcement Update – ACT NOW for Compliance!
The DEC releases information on their projected enforcement of new NYS Solid Waste Regulations (Part 360 Rules) On March 1st, 2018, the New York State Department of Environmental Conservation issued an Enforcement Discretion Letter which relaxes certain provisions of...
What is a Confined Space? (And What Should We Do About it?)
Construction Site Safety: Confined Space Entry In the world of engineering and construction, we encounter all types of unknowns during the design process. For example, we may lack knowledge regarding buried utilities, interior details of inaccessible buildings, past...
Watch Bob LoPinto, P.E. Discuss NYSDEC Solid Waste Permits
New York State Permitted vs. Registered Solid Waste Facilities Have you been hearing about these new NYSDEC Part 360 changes, and are unsure if you are being affected? Watch this short video of Walden's Robert LoPinto, P.E. who will explain the basis of who will need...
NYSDEC Releases Long-awaited Stormwater Multi-Sector General Permit
Multi-Sector General Permit (MSGP) (GP-0-17-004) Effective Until 2023. NYSDEC Releases Long-awaited Stormwater General Permit The most recent version of the Multi-Sector General Permit (MSGP) for Stormwater Discharges Associated with Industrial Activity (GP-0-17-004)...
Soil Vapor Intrusion Solutions – Sub-Slab Depressurization System
How to Address Soil Vapor Intrusion Discussed in a previous blog (link at the bottom of the page), subsurface contamination can find its way into habitable buildings via minor breaches in a building’s foundation and/or flooring. Source area removal, or direct removal...
Update: Long Island’s 1,4-Dioxane Issue
Cancer-causing Chemical Is Present in Long Island Groundwater and Drinking Water Samples Last year, New York State officials initiated a plan to sample groundwater at all New York State (NYS) Superfund sites on Long Island for the presence of the carcinogen,...
Cooling Season is Approaching – Is Your Building Protected From Legionella?
New York State Legionella Testing for 2018 Cooling Season Starts Soon “But, it’s only February! You want us to think about air conditioning now?” Although we are still feeling the bitter cold on a daily basis, warm spring temperatures are just around the corner. Now...
What is Soil Vapor Intrusion, and Why Should We Be Concerned?
How Can Environmental Contamination Affect You? Soil Vapor Intrusion Subsurface contamination, whether stemming from hazardous groundwater, oil spills, leaky storage tanks, or other buried waste can pose a threat to human health in the form of vapor intrusion. ...
PFOS Contamination is Back in the News – Now, on Long Island
Suspected MacArthur Airport Groundwater Contamination Islip, NY Recent PFOA and PFOS Contaminant History Poly- and Perfluoroalkyl substances (commonly referred to as PFOA’s and PFOS’s) were a hot-topic issue in 2017. On March 3, 2017, 6 NYCRR Part 597 was amended to...