CALTHA NEWS
Stay informed with industry news, regulatory & management requirement updates and featured Caltha project summaries.
Proposed Changes To Washington 2015 Construction Stormwater Permit
On November 18, 2015, Ecology issued an updated Construction Stormwater General Permit (CSWGP). The permit became effective January 1, 2016. One appeal was filed with the Washington Pollution Control Hearings Board on December 17, 2015. To resolve the case, Ecology...
read moreOSHA Rule Reducing Worker Exposure To Crystalline Silica
The Occupational Safety and Health Administration (OSHA) has issued a final rule on worker exposure to respirable crystalline silica. The rule is comprised of two standards, one for construction and one for general industry and maritime. Some of the key provisions of...
read morePhase I Environmental Assessment For Historical Industrial Site
Caltha LLP Project Summary Project: Phase 1 ESA Client: Property Owner Location(s): Duluth, Minnesota Key Elements: Phase 1, Environmental Assessment, All Appropriate Inquiry Overview: Caltha LLP was retained by the property owner to conduct a Phase 1 Environmental...
read moreMPCA Option D Permit Review For New Air Emission Source At A Food Manufacturing Plant
Caltha LLP Project Summary Project: Option D Permit Review For New Process Client: Food Manufacturing Processing Facility Location(s): Minnesota Key Elements: Air permitting, Air permit compliance, Air emission estimates, Control equipment efficiency Overview: Caltha...
read moreNew TRI Category Proposed For NPE Compounds | EPCRA 313 Reporting
On November 16, 2016, the USEPA published a proposed rule to add a NPE category, which contains thirteen NPEs, to the TRI list of reportable chemicals. NPEs are nonionic surfactants used in adhesives, wetting agents, emulsifiers, stabilizers, dispersants, defoamers,...
read moreNew Chemical Catagory Added For EPCRA 313 Reporting In 2017
On November 28, 2016, the USEPA published a final rule that adds a HBCD category to the TRI list of reportable chemicals. The HBCD category includes two CASRNs: 3194-55-6 (1,2,5,6,9,10-HBCD) and 25637-99-4 (HBCD). Since the HBCD category meets the TRI criteria for a...
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