Friday, February 19, 2010

Transportation, Trucking & Warehousing 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 June1, 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 Land Transportation and Warehousing Sector (Sector P). Sector P includes Land Transportation and Warehousing facilities as identified by a narrative description and not solely by their the Standard Industrial Code. These requirements are in addition to permit requirements that apply to all sectors.

Review requirements that apply to all sectors

The facility must inspect all the following areas/activities: storage areas for vehicles/equipment awaiting maintenance, fueling areas, indoor and outdoor vehicle/equipment maintenance areas, and vehicle/equipment cleaning areas.

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.

Employee Training:
The employee training program must include proper disposal of used oil and spent solvent management; fueling procedures; proper painting procedures; and used battery management..

[Read more about Minnesota stormwater training]

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; unlike most industrial sector, Sector P facilities are assigned by NARRATIVE descriptions, and not by SIC code:

Rail Transportation Facilities:
TSS 100 mg/L

Petroleum Bulk Oil Stations and Terminals:
TSS 100 mg/L

Motor Vehicle Facilities:
TSS 100 mg/L

Warehousing and Storage; General Warehousing, Farm Product Warehousing, Refrigerated Warehousing:
TSS 100 mg/L

[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
Caltha LLP Website

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