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The 2019 Arizona Multisite General Permit (MSGP) replaces ADEQ’s 2010 Non-Mining and Mining MSGP; the 2019 MSGPs became effective on Jan. 1, 2020. Existing permittees (those who have coverage under the 2010 permit(s)) have between Jan. 1, 2020, and Feb. 28, 2020, to...read more
Caltha LLP Project Summary Project: Phase II Environmental Investigation For Commercial Site Redevelopment Client: National Retailer Location(s): Minneapolis - Saint Paul Area, Minnesota Key Elements: Phase 2 Site investigation, Groundwater sampling, Soil sampling...read more
Caltha LLP Project Summary Project: Phase 1 Environmental Assessment Client: Commercial Location(s): Cedar Rapids, IA Key Elements: Phase 1 environmental site assessment, ASTM 1527, soil vapor intrusion risk screening Overview: Caltha LLP conducted a Phase 1...read more
Caltha LLP Project Summary Project: Construction Stormwater Permitting, SWPPP & Contractor Training Client: National Home Builder Location(s): Minnesota Key Elements: Stormwater permitting, SWPPP, Inspection training Overview: Caltha LLP was retained by a national...read more
Discussion of business related environmental risks, including permits, compliance,...read more
Who Needs A Hazardous Waste Permit? Actually, only a few types of businesses need a hazardous waste "permit", also referred to as a RCRA permit. These are sites that are regulated as treatment, storage, or disposal facilities, referred to as TSDFs. If not actually...read more