Tuesday, February 2, 2010

Rubber & Plastics Manufacturing Sector Y - Proposed Arizona Stormwater Permit

The Arizona Department of Environmental Quality (ADEQ) recently released an updated draft of its proposed multisector industrial stormwater discharge general permit, known officially as the AZPDES Multi-Sector General Permit, or MSGP 2010. This permit, once promulgated, will replace the existing industrial stormwater permit, which expired in 2005.

Review a summary of the ADEQ Industrial Stormwater Permit

The proposed permit details requirements for 30 different industrial sectors. The requirements described below are proposed for the Rubber, Miscellaneous Plastic Products, and Miscellaneous Manufacturing Sector (Sector Y). Sector Y covers a very broad range of product types, including manufacturing of tires and inner tubes; rubber and plastic footwear; gaskets, packing and sealing devices; and rubber hose and belting; fabricated rubber products; Manufacturing of miscellaneous plastics products; musical instruments; dolls, toys, games and sporting and athletic goods; pens, pencils, and other artists’ materials; costume jewelry, costume novelties, buttons, pins and needles and miscellaneous notions. These requirements are in addition to permit requirements that apply to all sectors.

Preventive Maintenance:
Each site must implement specific controls to minimize contact of zinc with stormwater discharges by:

a) using chemicals purchased in pre-weighed, sealed polyethylene bags,
b) storing in-use materials in sealable containers,
c) ensuring an airspace between the container and the cover to minimize “puffing” losses when the container is opened,
d) using automatic dispensing and weighing equipment, and
e) replacing or repairing improperly operating dust collectors or baghouses.

The operation must also implement specific controls to minimize contact of plastic resin pellets with stormwater discharges.

Stormwater Monitoring Benchmarks:
All facilities are required to conduct visual and chemical (benchmark) monitoring. For benchmark monitoring, the benchmark concentrations or values depend on facility type:

Rubber Manufacturing (SIC 3011-3069):

Total Zinc 0.04 to 0.26 mg/L, depending on hardness

Looking for other sector information?
Click here for information on proposed stormwater requirements for specific sector.

Caltha LLP provides expert consulting services to public and private sector clients nationwide to address Stormwater Permitting & Regulatory Support, Stormwater Pollution Prevention Plans (SWPPP), Stormwater Monitoring and Stormwater Training.

For further information contact Caltha LLP at
Caltha LLP Website

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