Products Finishing

OCT 2013

Products Finishing magazine is the No. 1 industrial finishing publication in the world. We keep our readers informed about the latest news and trends in plating, painting, powder coating, anodizing, electrocoating, parts cleaning, and pretreatment.

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NASF REPORT NASF in Discussions with State Regulators Group says EPA should tighten wastewater limits for finishing. State water regulators are pushing EPA to revise regulations or issue new guidance on pretreatment standards for the metal fnishing industry. EPA last issued pretreatment standards for the metal fnishing and electroplating sectors in the early 1980s: Metal Finishing Efluent Limitation Guidelines (ELG) (40 CFR Part 433) and the Electroplating ELG (40 CFR Part 413). Specifcally, the Association of Clean Water Agencies (ACWA) has advised EPA that if the agency won't update these standards in the near future, then EPA should at least issue new guidance for the application of these regulations and provide an interpretation of the applicability of the metal fnishing and electroplating ELGs to current industrial practices. ACWA has sent a letter to EPA identifying this issue as its number one priority for the coming year. The group argues the agency should act based on new "green" chemistry and technology that are being used by the industry to remove more toxics from the waste stream, and the fact that the metal fnishing industry is the largest category of industrial users subject to pretreatment standards. The group also highlights a host of issues in the current environment, including new chemical formulations widely used by industry, the potential of new pollutants of concern from new The metal fnishing industry is the largest category of industrial users subject to pretreatment standards. additives, the ongoing dificulty of determining the diference between a metal fnisher and an electroplater, increased use of nanoparticles and the emergence of new treatment technology that can more efectively remove metals from the waste stream. Missouri Retreats from More Stringent Stormwater Discharge Permit for Surface Finishing Operations The Missouri Department of Natural Resources, Clean Water Commission (DNR) recently proposed to roll the Metal Fabrication General Permit (MO-R203) that expires on June 14, 2014, into General Permit Number MO-R60A that the state developed for stormwater discharges from motor vehicle salvage yards and scrap metal recycling operations. The draf permit would subject surface fnishing operations and other metal fabrication operations to stormwater permit requirements that are meant for auto salvage yards and scrap metal recycling operations—requirements that are neither appropriate nor necessary for surface fnishing or other metal fabrication operations. Even though this was a state-specifc action, Missouri's proposal represents a broader trend to consolidate general permits for industrial stormwater discharges, which could disadvantage surface fnishing and other metal fabrication operations nationwide. The Policy Group submitted comments on the proposed rule on behalf of NASF. In the comment package, NASF expressed several concerns: 12 OCTOBER 2013 — pfonline.com Stormwater discharges from surface fnishing operations are signifcantly diferent than those from auto salvage yards. • Current best management practices to control stormwater discharges from surface fnishing operations are protective. • New sampling requirements for stormwater discharges from surface fnishing facilities are not necessary, are expensive and are dificult to implement for these facilities. The comments also urged Missouri not to impose these permit conditions on surface fnishing operations and advised the state to more appropriately assess potential risks posed by industrial stormwater discharges from surface fnishing facilities. The Missouri DNR recently announced that due to the volume of comments objecting to combining the two industry sectors, it will not combine the general permits. The existing general permit for metal fabrication (including surface fnishing) will expire on June 14, 2014, and the Missouri DNR •

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