Rubber Plastics and Other Manufacturing Sector - MPCA Permit Requirements

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are 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.

Review requirements that apply to all sectors

Inspections:
The facility must conduct inspections addressing air pollution control equipment (e.g., baghouses, electrostatic precipitators, scrubbers, and cyclones) for any signs of degradation (e.g., leaks, corrosion, or improper operation) that could limit their efficiency and lead to excessive emissions. The operation must monitor air flow at inlets and outlets (or use equivalent measures) to check for leaks (e.g., particulate deposition) or blockage in ducts. Also inspect all process and material handling equipment (e.g., conveyors, cranes, and vehicles) for leaks, drips, or the potential loss of material.

In addition to routine inspection requirements, the operation must conduct two of the monthly inspections during runoff events. One of the inspections must be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

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):
TSS 100 mg/L
Total Lead 0.164 mg/L
Total Zinc 0.234 mg/L

Others:
TSS 100 mg/L

Note: Benchmarks for zinc were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the revised MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information?
Click here for a link to all sector requirements

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

For further information contact Caltha LLP at
info@calthacompany.com
or
Caltha LLP Website

Foundry, Steel Mills, Rolling Mills Primary Metals - MPCA Permit Requirements

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are for the Primary Metals Sector (Sector F). Sector F covers a fairly broad range of facility types, including steel works, blast furnaces, and rolling and finishing mills, iron and steel foundries, primary smelting and refining of nonferrous metals, secondary smelting and refining of nonferrous metals, rolling, drawing, and extruding of nonferrous metals, nonferrous foundries and other primary metal products These requirements are in addition to permit requirements that apply to all sectors.

Review requirements that apply to all sectors

Inspections:
The facility must conduct inspections addressing air pollution control equipment (e.g., baghouses, electrostatic precipitators, scrubbers, and cyclones) for any signs of degradation (e.g., leaks, corrosion, or improper operation) that could limit their efficiency and lead to excessive emissions. The operation must monitor air flow at inlets and outlets (or use equivalent measures) to check for leaks (e.g., particulate deposition) or blockage in ducts. Also inspect all process and material handling equipment (e.g., conveyors, cranes, and vehicles) for leaks, drips, or the potential loss of material.

In addition to routine inspection requirements, the operation must conduct two of the monthly inspections during runoff events. One of the inspections must be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

Good Housekeeping:
Good housekeeping practices must include a cleaning and maintenance program for all impervious areas of the facility where particulate matter, dust, or debris may accumulate, especially areas where material loading and unloading, storage, handling, and processing occur. The operation must also implement a cleaning program which includes regular sweeping for the paving of areas where vehicle traffic or material storage occur but where vegetative or other stabilization methods are not practicable. For unstabilized areas where sweeping is not practicable, the operation must select an alternative stormwater management devices that effectively trap or remove sediment.

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:

Steel Works, Blast Furnaces, and Rolling and Finishing Mills (SIC 3312-3317):
TSS 100 mg/L
Total Aluminum 1.5 mg/L
Total Zinc 0.234 mg/L

Iron and Steel Foundries (SIC 3321-3325):
TSS 100 mg/L
Total Aluminum 1.5 mg/L
Total Iron 1.0 mg/L
Total Zinc 0.234 mg/L
Total Copper 0.028 mg/L

Rolling, Drawing, and Extruding of Nonferrous Metals (SIC 3351-3357):
TSS 100 mg/L
Total Zinc 0.234 mg/L
Total Copper 0.028 mg/L

Nonferrous Foundries(SIC 3363-3369):
TSS 100 mg/L
Total Zinc 0.234 mg/L
Total Copper 0.028 mg/L

Others:
TSS 100 mg/L

Note: Benchmarks for zinc, copper, aluminum, iron were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the revised MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information?
Click here for a link to all sector requirements

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

For further information contact Caltha LLP at
info@calthacompany.com
or
Caltha LLP Website

Glass, Clay, Cement, Concrete, Gypsum Products Sector

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are for the Glass, Clay, Cement, Concrete, and Gypsum Products Sector (Sector E). Sector E covers a fairly broad range of product types, including flat glass, glass containers, pressed and blown glass, hydraulic cement, structural clay products, pottery and related products, concrete, gypsum, and plaster products, glass products, cut stone and stone products, abrasives, asbestos products, and miscellaneous non metal mineral products, mineral wool and mineral wool insulation products, and non-clay refractories. These requirements are in addition to permit requirements that apply to all sectors.

Review requirements that apply to all sectors

Inspections:
The facility must conduct inspections of dust collection and containment systems.

Good Housekeeping:
The facility must prevent or minimize the discharge of spilled cement, aggregate (including sand or gravel), kiln dust, fly ash, or settled dust from paved portions of the facility that are exposed to stormwater. Each facility must determine the frequency of sweeping or equivalent by the amount of industrial activity occurring in the area and the frequency of exposure to stormwater, but it must be performed at least once a week, if cement, aggregate, kiln dust, fly ash, or settled dust are being handled or processed. The operation must also prevent the exposure of fine granular solids (cement, fly ash, kiln dust, etc.) to stormwater.

Preventative Maintenance:
For facilities producing ready-mix concrete, concrete block, brick, or similar products preventive measures must be implemented that ensure that process wastewater resulting from washing trucks, mixers, transport buckets, forms, or other equipment are discharged in accordance with a separate applicable NPDES permit..

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

Clay Products Manufacturers (SIC 3251-3259, 3261-3269):
Total Aluminum 1.5 mg/L
TSS 100 mg/L

Concrete and Gypsum Product Manufacturers (SIC 3271-3275):
TSS 100 mg/L
Total Iron 1.0 mg/L

Cement Manufacturing Facility, Material Storage Runoff:
TSS 100 mg/L
pH 6 - 9

Others:
TSS 100 mg/L

Note: Benchmark for aluminum were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the revised MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information?
Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website

Asphalt Paving Roofing Materials & Lubricant Manufacturing Sector Requirements

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are for the Asphalt Paving and Roofing Materials and Lubricant Manufacturing Sector (Sector D). Sector D covers several facility types, including manufacturing asphalt paving mixtures blocks and roofing materials, portable asphalt plant facilities, and manufacturing lubricating oils and greases and miscellaneous products of petroleum and coal. These requirements are in addition to permit requirements that apply to all sectors.

Inspections:
Inspections must include the following areas: material storage and handling areas; liquid storage tanks, hoppers, and silos; vehicle and equipment maintenance, cleaning, and fueling areas; and material handling vehicles, equipment, and processing areas.

The facility must conduct two of the monthly inspections during runoff events. One of the inspections must be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

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

Permanent Asphalt Paving and Roofing Materials (SIC 2951, 2952):
TSS 100 mg/L

Discharges from Areas Where Production of Asphalt Emulsions Occur (SIC 2951, 2952):
TSS 100 mg/L
Oil & Grease none
pH 6-9

Portable Asphalt Pavement Plants:
TSS 100 mg/L

Miscellaneous Products of Petroleum and Coal (SIC 2992, 2999):
TSS 100 mg/L


[Read more about how benchmarks are used under the new MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information?
Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website

Chemical Sector Requirements - MPCA General Permit

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are for the Chemical and Allied Products Manufacturing Sector (Sector C). Sector C covers a fairly broad range of product types, including industrial inorganic and organic chemicals, plastic materials and synthetic resins, synthetic rubbers and human-made fibers, soap and detergents, specialty cleaning, polishing, and sanitation preparations, surface active preparations, perfumes, cosmetics, paints, wood fillers and sealers, paint and varnish removers, adhesives, glues, caulking compounds, explosives, inks, fertilizers, pesticides, and other agricultural chemicals, medicinal and pharmaceutical chemicals. These requirements are in addition to permit requirements that apply to all sectors.

Review requirements that apply to all sectors

Inspections:
The facility must conduct two of the monthly inspections during runoff events. One of the inspections shall be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

Potential Pollutant Sources:
The SWPPP must document describe the following potential pollutant sources: outdoor storage of salt, pallets, coal, drums, containers; access roads, rail cars, and tracks, areas where the transfer of substances in bulk occurs, and areas where machinery operates.

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

Agricultural Chemicals (SIC 2873-2879):
COD 120 mg/L
TSS 100 mg/L
Total Zinc 0.234 mg/L
Total Lead 0.164 mg/L
Total Iron 1.0 mg/L
Phosphorus 1.0 mg/L

Industrial Inorganic Chemicals (SIC 2812-2819):
TSS 100 mg/L
Total Aluminum 1.5 mg/L
Total Iron 1.0 mg/L
Total Zinc 0.234 mg/L

Soaps, Detergents, Cosmetics, and Perfumes (SIC 2841-2844):
TSS 100 mg/L
Total Zinc 0.234 mg/L

Plastics, Synthetics, and Resins (SIC 2821- 2824):
TSS 100 mg/L
BOD 25 mg/L
Total Zinc 0.234 mg/L

All Others:
TSS 100 mg/L

Note: Benchmarks for zinc, copper, aluminum, iron, arsenic were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information?
Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website

Paper & Allied Products Sector Requirements in Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are proposed for the Paper and Allied Products Manufacturing Sector (Sector B). Sector B covers a fairly broad range of facility types, including paperboard mills, pulp mills, paper mills, paperboard containers and boxes, converted paper and paperboard products. These requirements are in addition to permit requirements that apply to all sectors.

Review requirements that apply to all sectors


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

TSS 100 mg/L
COD 120 mg/L

[Read more about how benchmarks are used under the proposed MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]

Looking for other sector information?
Click here for a link to all sector requirements

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

For further information contact Caltha LLP at
info@calthacompany.com
or
Caltha LLP Website

Timber Products - Wood Products Sector Stormwater Requirements

The Minnesota Pollution Control Agency (MPCA) has issued its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

The revised permit details requirements for 29 different industrial sectors. The requirements described below are for the Timber Products Sector (Sector A). Sector A covers a fairly broad range of facility types, including log storage or handling areas, mills, producing lumber and wood basic materials, wood preserving, manufacturing finished articles made entirely of wood or related materials, and manufacturing wood buildings or mobile homes. These requirements are in addition to permit requirements that apply to all sectors.

Inspections:
If the facility performs wood surface protection and preservation activities, inspections must include processing areas and treated wood storage areas to assess the effectiveness of practices to eliminate the deposit of treatment chemicals on unprotected soils and eliminate all contact with stormwater discharges. At least two of the monthly inspections must be conducted during runoff events. One of the inspections must be performed during a snow melt runoff event.

Industry-Specific Stormwater Controls:
The facility must have secondary containment for all significant materials stored indoor and outdoor, (e.g. arsenic, chromium, zinc, copper, and phenolic solution storage tanks and structures). Facility must also drain containment stormwater for outdoor storage tanks and structures only after inspection demonstrates that no stormwater contact with solutions has occurred.

Potential Pollutant Sources:
If the operation uses chlorophenolic, creosote, or chromium-copper-arsenic formulations for wood surface protection or preserving, the SWPPP must document 1) areas where contaminated soils, treatment equipment, and stored materials still remain, and 2) the management practices employed to minimize the contact of these materials with stormwater runoff.

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

General Sawmills and Planing Mills (SIC 2421):
COD 120 mg/L
TSS 100 mg/L
Zinc 0.234 mg/L

Wood Preserving (SIC 2491):
TSS 100 mg/L
Total Arsenic 0.680 mg/L
Total Copper 0.028 mg/L
Total Chromium III 3.5 mg/L
Total Phenols 4.4 mg/L

Log Storage and Handling (SIC 2411):
TSS 100 mg/L

Wet Decking:
pH 6 - 9

Discharges at Log Storage and Handling Areas (SIC 2411):
TSS 100 mg/L

Hardwood Dimension and Flooring Mills and others:
TSS 100 mg/L
COD 120 mg/L

Nailed Wood Boxes and Shook (SIC 2441-2449):
TSS 100 mg/L

Note: Benchmarks for zinc, copper, chromium, phenols, arsenic were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the proposed MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information?
Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website

Industrial Stormwater Control Requirements - All Minnesota Sites

The Minnesota Pollution Control Agency has released its revised multi-sector industrial stormwater discharge general permit (MSGP). This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either May, August or October, 2010 depending on their industrial sector.

Click here to review a list affected industrial sectors and application deadlines for each sector

Some of the requirements in the revised permit affect ALL PERMITTED FACILITIES regardless of industrial sector. These requirements include:

Stormwater Pollution Prevention Requirements:
All facilities are required to prepare and implement a site-specific Stormwater Pollution Prevention Plan (SWPPP). The permit includes specific information required in the SWPPP, as well as areas that need to be evaluated to determine if potential pollution sources exist. The SWPPP develops a set of Best Management Practices (BMPs) to address each of the potential source areas identified during the assessment.

Click here for information on MPCA Permit SWPPP Template

Routine Inspections:
All facilities are required conduct and document inspections at least monthly. At least one of these inspections needs to be conducted during a rainfall event.

Preventive Maintenance:
All facilities are required to prepare a Preventive Maintenance schedules for stormwater BMPs used by the site. In addition, each site will have to prepare a written equipment preventive maintenance program, including regular inspection, maintenance, and repair of industrial equipment and systems to identify conditions that could cause breakdowns or failures that may result in leaks, spills, and other releases.

Elimination of Non-stormwater Discharges:
Any facility covered under the MSGP must evaluate the potential of non-stormwater discharges from the site and to either eliminate the discharge or obtain a separate permit to discharge.

Spill Prevention and Response Procedures:
All sites must evaluate risks for spills and develop a Spill Prevention and Response procedure. This requirement applied to all facilities, and not limited to those already required to have equivalent procedures under SPCC Rules (40 CFR 112) or the Minnesota Spill Bill.

Mercury Minimization Plan:
All sites must document an evaluation of the facility to determine if any sources containing mercury are exposed to stormwater. If potential mercury sources or devices are found to be exposed to stormwater, a Mercury Minimization Plan must be developed. Mercury sources and devices shall be removed from stormwater exposure and managed in accordance applicable state and federal rules.

Employee Training Program:
Employers must develop an employee training program. Training will need to be provided to affected employees at least once each year.


Stormwater Monitoring Requirements:
All sites covered under the permit will have to collect stormwater samples and have samples analyzed by a Minnesota certified laboratory. Samples are collected at all affected discharge points from the site within the first 30 minutes of stormwater discharge. The results will be reported to MPCA on a quarterly basis. Results will be compared to stormwater “benchmark” values for each industrial sector.

[Read about MPCA industrial stormwater monitoring requirements]
[See flowchart summarizing MPCA industrial stormwater monitoring requirements]

Sector Specific Requirements:
Some of the key elements of the permit are the Sector Specific requirements. Each sector has additional compliance requirements that are in addition to the requirements described above.

Click here to review the industrial sector stormwater requirements

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
info@calthacompany.com
or
Caltha LLP Website

Storm Water - Minnesota Industrial Sector Requirements

The Minnesota Pollution Control Agency (MPCA has released the revised multi-sector industrial stormwater discharge general permit (MSGP). MPCA expects the new permit will become effective on April 1, 2010. This permit will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

All manufacturing, industrial and “industrial-like” sites that require a permit to discharge stormwater will be required to come into compliance with the revised permit, and to submit an application for permit coverage by either June 1, August 1 or October 1, depending on their industrial sector.

Click here to review application deadlines for each sector


The revised permit details requirements for 29 different industrial sectors. Click on a sector below to review proposed sector specific requirements:

MPCA SWPPP Requirements for Sector A - Timber Products
MPCA SWPPP Requirements for Sector B - Paper and Allied Products Manufacturing
MPCA SWPPP Requirements for Sector C - Chemical and Allied Products Manufacturing
MPCA SWPPP Requirements for Sector D - Asphalt Paving and Roofing Materials and Lubricant Manufacturing
MPCA SWPPP Requirements for Sector E - Glass, Clay, Cement, Concrete, and Gypsum Products
MPCA SWPPP Requirements for Sector F - Primary Metals
MPCA SWPPP Requirements for Sector G - Metal Mining
MPCA SWPPP Requirements for Sector H - Coal Mining
MPCA SWPPP Requirements for Sector I - Oil and Gas Extraction and Refining
MPCA SWPPP Requirements for Sector J - Mineral Mining
MPCA SWPPP Requirements for Sector K - Hazardous Waste Treatment, Storage, or Disposal Facilities
MPCA SWPPP Requirements for Sector L - Landfills & Land Application Sites
MPCA SWPPP Requirements for Sector M - Automobile Salvage Yards
MPCA SWPPP Requirements for Sector N - Scrap Recycling and Waste Recycling Facilities
MPCA SWPPP Requirements for Sector O - Steam Electric Generating Facilities
MPCA SWPPP Requirements for Sector P - Land Transportation and Warehousing
MPCA SWPPP Requirements for Sector Q - Water Transportation
MPCA SWPPP Requirements for Sector R - Ship and Boat Building and Repair Yards
MPCA SWPPP Requirements for Sector S - Air Transportation Facilities
MPCA SWPPP Requirements for Sector T - Treatment Works
MPCA SWPPP Requirements for Sector U - Food and Kindred Product
MPCA SWPPP Requirements for Sector V - Textile Mills, Apparel, and Other Fabric Products
MPCA SWPPP Requirements for Sector W - Furniture and Fixtures
MPCA SWPPP Requirements for Sector X - Printing and Publishing
MPCA SWPPP Requirements for Sector Y - Rubber, Miscellaneous Plastic Products, and Miscellaneous Manufacturing Industries
MPCA SWPPP Requirements for Sector Z - Leather Tanning and Finishing
MPCA SWPPP Requirements for Sector AA - Fabricated Metal Products
MPCA SWPPP Requirements for Sector AB - Transportation Equipment, Industrial and Commercial Machinery
MPCA SWPPP Requirements for Sector AC - Electronic and Electrical Equipment and Components




Looking for information on Minnesota SWPPP - Industrial Stormwater Training?,
go to:
MPCA Industrial Stormwater Training - SWPPP Training - Stormwater Inspection Training



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
info@calthacompany.com
or
Caltha LLP Website

Industrial Sector Requirements - ADEQ Draft Industrial 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]

Some key changes in the revised permit compared to the previous permit are the additional of sector-specific requirements for each of 30 different sectors.

Click on a sector below to review proposed sector specific requirements:

Arizona DEQ SWPPP Requirements for Sector A - Timber Products
Arizona DEQ SWPPP Requirements for Sector B - Paper and Allied Products Manufacturing
Arizona DEQ SWPPP Requirements for Sector C - Chemical and Allied Products Manufacturing
Arizona DEQ SWPPP Requirements for Sector D - Asphalt Paving and Roofing Materials and Lubricant Manufacturing
Arizona DEQ SWPPP Requirements for Sector E - Glass, Clay, Cement, Concrete, and Gypsum Products
Arizona DEQ SWPPP Requirements for Sector F - Primary Metals
Arizona DEQ SWPPP Requirements for Sector G - Metal Mining
Arizona DEQ SWPPP Requirements for Sector H - Coal Mining
Arizona DEQ SWPPP Requirements for Sector I - Oil and Gas Extraction and Refining
Arizona DEQ SWPPP Requirements for Sector J - Mineral Mining
Arizona DEQ SWPPP Requirements for Sector K - Hazardous Waste Treatment, Storage, or Disposal Facilities
Arizona DEQ SWPPP Requirements for Sector L - Landfills, Land Application Sites, and Open Dumps
Arizona DEQ SWPPP Requirements for Sector M - Automobile Salvage Yards
Arizona DEQ SWPPP Requirements for Sector N - Scrap Recycling and Waste Recycling Facilities
Arizona DEQ SWPPP Requirements for Sector O - Steam Electric Generating Facilities
Arizona DEQ SWPPP Requirements for Sector P - Land Transportation and Warehousing
Arizona DEQ SWPPP Requirements for Sector Q - Water Transportation
Arizona DEQ SWPPP Requirements for Sector R - Ship and Boat Building and Repair Yards
Arizona DEQ SWPPP Requirements for Sector S - Air Transportation Facilities
Arizona DEQ SWPPP Requirements for Sector T - Treatment Works
Arizona DEQ SWPPP Requirements for Sector U - Food and Kindred Product
Arizona DEQ SWPPP Requirements for Sector V - Textile Mills, Apparel, and Other Fabric Products
Arizona DEQ SWPPP Requirements for Sector W - Furniture and Fixtures
Arizona DEQ SWPPP Requirements for Sector X - Printing and Publishing
Arizona DEQ SWPPP Requirements for Sector Y - Rubber, Miscellaneous Plastic Products, and Miscellaneous Manufacturing Industries
Arizona DEQ SWPPP Requirements for Sector Z - Leather Tanning and Finishing
Arizona DEQ SWPPP Requirements for Sector AA - Fabricated Metal Products
Arizona DEQ SWPPP Requirements for Sector AB - Transportation Equipment, Industrial and Commercial Machinery
Arizona DEQ SWPPP Requirements for Sector AC - Electronic and Electrical Equipment and Components


Looking for information on Arizona SWPPP and Industrial Stormwater Training?, go to:
Arizona Industrial Stormwater Services - SWPPP Training - Stormwater Inspection Training

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.

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Arizona ADEQ Draft Industrial Multi Sector General Stormwater Permit

The Arizona Department of Environmental Quality (ADEQ) recently posted an updated draft of its proposed multisector industrial stormwater discharge general permit for informal stakeholder review and input. This permit “AZPDES MSGP 2010”, once promulgated, will replace the existing industrial stormwater permit, which expired in 2005. ADEQ anticipates the MSGP to be public noticed sometime during the winter of 2010.


The AZPDES MSGP 2010 contains 8 parts and 5 appendices. Parts 1 through 7 describe the requirements that all operators must meet when seeking coverage under this permit. Part 8 describes the additional sector-specific requirements for industrial activities, sub-divided into 30 industry sectors.

Much of the ADEQ permit is based on the US EPA Multi-Sector General Permit (MSGP 2008) that became effective on Sept. 29, 2008. Some of the Arizona-specific changes from the MSGP 2008 include:

• The NOI must include the well registration number if stormwater associated with industrial activity is discharged to a dry well or an injection well.
• Facilities with liquid storage areas for SARA Section 313 water priority chemicals must be operated to minimize discharges of such chemicals.
• All facilities or any portion of a facility that is located at or within the 100-year floodplain must be delineated on the site map.
• Facilities subject to monitoring and reporting requirements must submit a discharge monitoring report form(s) and other required monitoring information.
• The term "significant sources of non-stormwater" includes, but is not limited to, discharges that could cause or contribute to violations of Arizona water quality standards, and discharges that could include releases of oil or hazardous substances in excess of reportable quantities under section 311 of the Clean Water Act (CWA) (See 40 CFR 110.10 and 40 CFR 117.21) or section 102 of CERCLA (See 40 CFR 302.4).
  

All facilities covered under the permit will need to comply with Parts 1 through 7. Some of the key requirements that all permittees will meet include:

SWPPP.
Each site will need to prepare and maintain a stormwater pollution prevention plan (SWPPP). The SWPPP will need to include:

Good Housekeeping.
Maintenance.
Spill Prevention and Response Procedures.
Erosion and Sediment Controls.
Management of Runoff
Management of Salt Storage Piles or Piles Containing Salt.
Sector Specific Control Measures.
Employee Training.
Elimination of Non-Stormwater Discharges.
Litter, Garbage and Floatable Debris
Dust Generation and Vehicle Tracking of Industrial Materials.

Routine Facility Inspection Procedures.
Every site will conduct routine quarterly inspections of all areas of the facility where industrial
materials or activities are exposed to stormwater with the potential to discharge from the facility, and of all stormwater control measures used to comply with this permit.

Visual Assessment of Stormwater Discharges.
Every site will also perform two visual assessments during the summer wet season and two during the winter wet season when the facility is discharging. The visual assessment is be made collecting a sample in a clean, clear glass, or plastic container, and examining it in a well-lit area.

Comprehensive Facility Inspection.
Once each year the qualified person or persons will conduct an annual comprehensive facility inspection (CFSI). A member of the facility’s stormwater pollution prevention team must conduct or participate in the inspection.

To review a summary Section 8 - Sector Specific Requirements, go to:

Summary of ADEQ Industrial Sector Requirements Under Draft MSGP 2010

[Read how ADEQ proposes to address new and expanded discharges to impaired waters and Outstanding Arizona Waters]

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
info@calthacompany.com
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South Dakota General Stormwater Discharge Permit - Construction

On February 1, 2010, the revised NPDES discharge permit for construction site stormwater discharges takes effect in South Dakota. The South Dakota Department of Environment & Natural Resources (DENR) issued the revised permit on December 31, 2009; this permit replaced the previous, which had been issued in 2002 and has been expired since 2007. The revised permit makes a number of changes to the stormwater compliance requirements needing to be met at affected construction sites.

Some of the key requirements include:

Permit

• NOI must be signed by the owner
• SWPPP must be developed before the NOI is submitted
• All SWPPPs, inspection reports, or other information must be signed and certified by a signatory official or by a “duly authorized representative” (Signatory authority must identify authorized representative and submit written authorization letter to DENR)

Stormwater Controls

• Controls must be designed to meet 2 inch 24 hour event (2-year, 24-hour storm event)
• Sediment basins required if >10 acres disturbed at one time, where possible
• Sediment traps or other equivalent controls required if <10>
• All storm drain inlets must be protected until site is stabilized
• Install velocity dissipation devices at points with high flows
• Soil stockpiles must have silt fence or other effective controls Properly store and dispose of litter, construction debris, and chemicals

Inspections

• Once every 7 days
• Within 24 hours after storm that is 0.5 inches or greater

Maintenance

• Remove sediment when ponds are 50% full
• Clean silt fences before sediment is 50% of the fence height
• Must minimize dust generation and tracking; street sweeping required at a minimum
• Remove sediment that accumulates off-site
• Site must be stabilized within 14 days after construction has ceased at the site

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
info@calthacompany.com
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Caltha LLP Website

Washington Mandatory BMP and Industrial Stormwater Requirements

The revised Washington Department of Ecology industrial stormwater general permit became effective on January 1, 2010. The revised permit has numerous substantive changes compared to the previous industrial stormwater permit. Some highlights of these changes include:


Stormwater Pollution Prevention Plan (SWPPP) Requirements

Mandatory BMPs must be implemented no later than July 1, 2010. The facility may omit individual BMPs if site conditions render the BMP unnecessary, infeasible, or the Permittee provides alternative and equally effective BMPs; and justifies the omission in the SWPPP. The mandatory BMPs include:

Operational Source Control BMPs:

• Vacuum paved surfaces with a vacuum sweeper once each quarter.
• Minimize stormwater contamination from dust. Inspect and maintain bag houses monthly.
• Keep all dumpsters under cover or keep dumpster lid closed when not in use.
• Clean catch basins when at capacity.
• Inspect all equipment and vehicles for leaking fluids. Take leaking equipment and vehicles out of service or prevent leaks until repaired.
• Store all chemical liquids, fluids, and petroleum products on an impervious surface with containment that is capable of containing 10% of the total enclosed tank volume or 110% of the volume contained in the largest tank, whichever is greater.
• Prevent precipitation from accumulating in containment areas.
• Locate spill kits within 25 feet of all stationary fueling stations, fuel transfer stations, and mobile fueling units.
• Facility personnel can not lock shut-off fueling nozzles in the open position, or “top-off” tanks being refueled.
• During fueling, facility personnel must block, plug or cover storm drains that receive runoff from areas where fueling.
• Use drip pans or equivalent containment measures during all petroleum transfer operations.
• Maintain a spill log that documents chemical and petroleum spills.
  

Structural Source Control BMPs:

• Use grading, berming, or curbing to prevent runoff of contaminated stormwater flows and divert run-on away from manufacturing, processing, and material storage areas.
• Perform all cleaning operations indoors, under cover, or in bermed areas that prevent stormwater runoff and run-on and capture any overspray. Drain wash water to a collection system for further treatment or storage.
  

SWPPP Signature/Certification

The Permittee must sign and certify the SWPPP and any revisions.

Benchmark Monitoring / Sampling

Facility must sample each distinct point of discharge off-site each calendar quarter; except “substantially identical outfalls”. Sampling must occur within the first 12 hours of stormwater discharge or as soon as practicable after the first 12 hours. Facilies must sample the stormwater discharge from the first fall storm event, after October 1st. “Consistent attainment” requires that four consecutive quarterly samples be equal to or less than the benchmark value; or for pH, within the range of 5.0 – 9.0.

Benchmarks and Effluent Limitations
Click here to review new stormwater benchmark concentrations

Discharges to 303(d)-Listed Waters

Numeric effluent limits now apply to facilities with discharges to 303(d)-listed impaired waterbodies (Category 5).

Inspections

Qualified personnel conduct and document visual inspections of the site monthly. Dry season and annual comprehensive inspection eliminated.

Corrective Actions

Permittees that exceed benchmark value (for a single parameter) for any two quarters during a calendar year complete a Level 2 Corrective Action (Structural Source Control BMPs). Permittees that exceed benchmark value (for a single parameter) for any three quarters during a calendar year complete a Level 3 Corrective Action (Treatment BMPs).

Facilities must revise their SWPPP and complete installation by September 30th the following year. All corrective actions must be documented in Annual Report. A licensed professional engineer, geologist, hydrogeologist, or certified professional in storm water quality (CPSWQ) must design and stamp the portion of the SWPPP that addresses (Level 3) stormwater treatment structures or processes.

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
info@calthacompany.com
or
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Industrial Storm Water Permit - Extension of Public Comment Period

The Minnesota Pollution Control Agency (PCA) has extended the public comment period for the proposed Industrial Stormwater Discharge Permit. PCA issued its draft NPDES permit on July 6 and is accepting public comments through September 5, 2009.

For more information, go to:

Summary of Proposed Industrial Stormwater Permit

Summary of Industrial Sectors and Industrial Sector Requirements

Minnesota Industrial Stormwater Training Opportunities

Minnesota Industrial Stormwater Services Summary

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
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Arkansas Multisector Industrial Stormwater Discharge Permit

This article has been updated:

Final Arkansas ADEQ Industrial Stormwater Discharge Permit

****************************************************************

The Arkansas Department of Environmental Quality (ADEQ) has recently released its draft industrial stormwater discharge permit for public review and comment. The revised permit will replace the existing permit.

Some of the key elements of the draft permit include:

Mult-sector requirements. The draft permit now regulates permitees based on INDUSTRIAL SECTOR designations, rather than SIC code alone. The draft incorporates sector specific stormwater monitoring and benchmark requirements; however, no sector specific stormwater controls or SWPPP requirements are included.

Visual Stormwater Inspections (“visual monitoring”). The draft permit requires a minimum of quarterly visual stormwater monitoring events, in addition to chemical (“benchmark”) monitoring. Once per year, outfalls will also need to be examined during dry weather to confirm the elimination of non-stormwater discharges.

Comprehensive Site Compliance Evaluation. Once each year, qualified personnel must conduct a site compliance evaluations. The evaluation must include a visual inspection for evidence of, or the potential for, pollutants entering the drainage system. Measures to reduce pollutant loadings shall be evaluated to determine whether they are adequate and properly implemented, or whether additional control measures are needed. A visual inspection of equipment needed to implement the spill response equipment must also be
made.

Benchmark Monitoring. Twice each year, a sample must be collected at each stormwater outfall and analyzed for four general effluent characteristic parameters, plus any sector-specific monitoring parameters.

[Read more about proposed ADEQ sector specific stormwater benchmark concentrations]

The Arkansas Department of Environmental Quality (ADEQ) has made available the proposed industrial stormwater permit on its website. The permit is open for public comment until May 11, 2009.

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
info@calthacompany.com
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Washington Ecology Industrial Permit Reissue - Proposed NPDES Permit

The current Washington State Department of Ecology (Ecology) Industrial Stormwater General Permit will expire April 30, 2009. The previous Industrial Stormwater NPDES and State Waste Discharge General Permit, first issued by Ecology in 2002, then reissued in 2007, expired on May 31, 2008. In 2008, Ecology proposed to reissue the expired general permit again without changes until April 30, 2009.

Ecology continues to work with stakeholders on drafting a new permit and plans to release the draft permit on May 20, 2009 for public comment. Once the public comment period ends, Ecology will consider the comments, make appropriate revisions, and then issue a final permit. Ecology intends to issue the final permit on October 21, 2009. Facilities currently covered under the expired permit will automatically be covered under the new final permit.

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
info@calthacompany.com
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Electronic Electrical Manufacturing Sector - SWPPP - Stormwater Permit Proposed Requirements

On July 6, 2009, the Minnesota Pollution Control Agency released its proposed multisector industrial stormwater discharge general permit. This permit, once promulgated, will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

Caltha LLP will be conducted seminars on the proposed sector requirements in July & August 2009. Caltha MPCA Industrial Stormwater Permit Requirements Seminars

The proposed permit details requirements for 29 different industrial sectors. The requirements described below are proposed for the Electronic and Electrical Equipment and Components Manufacturing Sector (Sector AC). Sector AC facilities are engaged in a range of product manufacturing, including a. measuring, analyzing, and controlling instruments, photographic and optical goods, watches and clocks; computer and office equipment; and electronic and electrical equipment and components. These requirements are in addition to permit requirements that apply to all sectors.

Inspections:
In addition to routine inspection requirements, the operation must conduct two of the monthly inspections during runoff events. One of the inspections must be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

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

Electronic, Electrical, Photographic,and Optical Goods (SIC 3571-3579, 3812-3873):
TSS 100 mg/L

Electronic and Electrical Equipment and Components, except Computers (SIC 3612-3699):
TSS 100 mg/L
Total Copper 0.028 mg/L
Total Lead 0.164 mg/L

Note: Benchmarks for zinc and iron were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the proposed MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]

Looking for other sector information? Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website

Transportation Machinery Equipment Manufacture Sector - SWPPP - Stormwater Permit Proposed Requirements

On July 6, 2009, the Minnesota Pollution Control Agency released its proposed multisector industrial stormwater discharge general permit. This permit, once promulgated, will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

Caltha LLP will be conducted seminars on the proposed sector requirements in July & August 2009. Caltha MPCA Industrial Stormwater Permit Requirements Seminars

The proposed permit details requirements for 29 different industrial sectors. The requirements described below are proposed for the Transportation Equipment, Industrial and Commercial Machinery Manufacturing Sector (Sector AB). Sector AB facilities are engaged in a wide range of product manufacturing, including:
a. manufacturing engines and turbines,
b. manufacturing farm and garden machinery and equipment,
c. manufacturing construction, mining, and materials handling machinery and equipment,
d. manufacturing metalworking machinery and equipment,
e. manufacturing special industry machinery, except metalworking machinery,
f. manufacturing general industrial machinery and equipment,
g. manufacturing refrigeration and service industry machinery,
h. manufacturing miscellaneous industrial and commercial machinery and equipment,
i. manufacturing motor vehicles and motor vehicle equipment,
j. manufacturing aircraft and parts,
k. manufacturing motorcycles, bicycles, and parts,
l. manufacturing guided missiles and space vehicles and parts, and
m. manufacturing miscellaneous transportation equipment.

These requirements are in addition to permit requirements that apply to all sectors.

Inspections:
In addition to routine inspection requirements, the operation must conduct two of the monthly inspections during runoff events. One of the inspections must be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

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

TSS 100 mg/L


[Read more about how benchmarks are used under the proposed MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information? Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website

Fabricated Metal Products Sector - SWPPP - Stormwater Permit Proposed Requirements

On July 6, 2009, the Minnesota Pollution Control Agency released its proposed multisector industrial stormwater discharge general permit. This permit, once promulgated, will replace the existing industrial stormwater permit, which expired in October of 2002.

[Read a summary of the overall Minnesota permit, stormwater monitoring, and sector requirements]

Caltha LLP will be conducted seminars on the proposed sector requirements in July & August 2009. Caltha MPCA Industrial Stormwater Permit Requirements Seminars

The proposed permit details requirements for 29 different industrial sectors. The requirements described below are proposed for the Fabricated Metal Products Sector (Sector AA). Sector AA facilities include fabricated metal products (except machinery and transportation equipment) jewelry, silverware, and plated ware, and fabricated metal coating, engraving and allied services. These requirements are in addition to permit requirements that apply to all sectors.

Inspections:
The facility must conduct inspections addressing areas associated with spent solvents, chemical storage areas, and outdoor paint areas.

In addition to routine inspection requirements, the operation must conduct two of the monthly inspections during runoff events. One of the inspections must be performed during a snow melt runoff event. Each inspection must include a visual assessment of the runoff to identify any visible sheens or films that indicate the presence of oil or grease in the discharge.

Good Housekeeping:
The pollution prevention program must implement measures for controlling or recovering scrap metals, fines, and metal dust. The SWPPP must include measures for containing materials within storage handling areas. The SWPPP must describe and implement measures for storage of metal working fluids.

Leaks and Spills:
The spill prevention program must address chromium, toluene, pickle liquor, sulfuric acid, zinc and other water priority chemicals, and hazardous chemicals and wastes.

The spill prevention plan must describe and implement measures to control and clean up spills of solvents and other liquid cleaners, control sand buildup and disbursement from sand-blasting operations, and prevent exposure of recyclable wastes including rinse waters. Each operation must use monitoring equipment or other devices to detect and control leaks and overflows of lubricating oil and hydraulic fluid operations and install perimeter controls, or equivalent measures.

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

Fabricated Metal Products, (SIC 3411-3499; 3911-3915)
TSS 100 mg/L
Total Aluminum 1.5 mg/L
Total Iron 1.0 mg/L
Total Zinc 0.234 mg/L

Fabricated Metal Coating and Engraving (SIC 3479):
TSS 100 mg/L
Total Zinc 0.234 mg/L


Note: Benchmarks for zinc and iron were derived based on the Aquatic Life Standards for these parameters in Minnesota Rules.

[Read more about use of Aquatic Life Standards to derive stormwater benchmarks]
[Read more about how benchmarks are used under the proposed MPCA industrial permit]
[Read more about what a 100 mg/L benchmark for TSS relates to]


Looking for other sector information? Click here for a link to all sector requirements

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
info@calthacompany.com
or
Caltha LLP Website