Laserfiche WebLink
1) The second item still has an LC50: = 2.75 mg/L, 96h (Oncorhynchus mykiss). The SIDS I got that information from <br /> is here. I believe the waste could still fail the test because it contains strong biocides (at least in terms of aquatic <br /> toxicity). <br /> 2) Safety data sheets in general are often incomplete. Businesses are not required to test and make hazardous <br /> waste determinations to create an SIDS sheet and many times the companies do not test for all hazardous waste <br /> requirements. The SDS sheet you provided for"MasterPozzolith 80" states "this product has no known <br /> ecotoxicological effects." Unless there are test results backing that statement it cannot be taken for a hazardous <br /> waste determination. Typically, this means it hasn't been tested for. <br /> Is it possible for Knife River to reuse the product? If the facility is a current a very small hazardous waste <br /> generator, it can also be taken here (for a very small fee) : https://www.sogov.org/department/pwk/solid- <br /> waste/san-ioaquin-county-solid-waste-facilities/san-ioaquin-county-ho use ho Id-hazardous-waste-facility <br /> I have attached a flyer for your review. <br /> Regarding item 12: <br /> Thank you for the response. I will go ahead and close this violation out. <br /> John <br /> From: Ruddy,Jim <Jim.Ruddy@kniferiver.com> <br /> Sent: Monday, March 3, 2025 5:01 PM <br /> To:Alaniz,John [EHD] <ialanizl@sigov.org> <br /> Cc: Saeed, Haza [EHD] <hsaeed@sigov.org>; DeAnda, Monica [EHD] <mdeanda@sigov.org>; Smith, David <br /> <David.Smith@ knife rive r.com>;Azevedo, Steve<Steve.Azevedo@kniferiver.com>; Artozqui, Zachery <br /> <Zachery.Artozqui@kniferiver.com> <br /> Subject: RE: HW Inspection Report PR0516296 <br /> Good Afternoon John, <br /> Following up with you on the hazardous waste inspection report; item# 11 & 12. <br /> For item#11, our admix supplier has further advised that the formulation used in California does not contain the 4- <br /> cholor-3 methyl phenol, per the attached statement below. In an effort to streamline and simplify their SIDS <br /> Library,they maintain a "0—0.3"to be all encompassing of their national formulation for this product. My <br /> understanding is that this is the constituent that would cause the material to potentially be considered a <br /> hazardous waste. Without the 4-chloro-3 methyl phenol,would that alleviate the classification of being a <br /> hazardous waste? <br /> 2 <br />