Coverage under the Multi-Sector General Permit for Stormwater Discharges under the National Pollution Discharge Elimination System (NPDES) requires the permittee to conduct laboratory analytical analysis of the stormwater that discharges from the facility. This regulation is to ensure that the ongoing activity doesn’t pollute the environment.

The sampling parameters, frequency, benchmark levels, and reporting method vary by State and by a facility’s industrial activity. For more information, please refer to the Permit of each State.

If Yes, Order a kit through James Environmental Management and the service to compose documents to report to the State Environmental Department is included.

Sampling Circle

Generally, a Stormwater Permit is effective for 4-5 years. During that permit cycle, the permittee is required to collect a stormwater sample. James Environmental Management, Inc. provides customized stormwater sample kits for the need of each of our customers so that they may remain compliant with their specific regulations. Use the sample kit the collect stormwater discharges during a qualifying rain event (rain amount > 0.1” that produces stormwater discharge) during the required monitoring period from the designated outfall(s) and send the kit back to the laboratory for analysis.

Click here to view the instructional Youtube video on how to collect a stormwater sample. The sample results will be delivered to James Environmental Management and a Stormwater Discharge Monitoring Report (DMR), as required by the State Environmental Department, will be composed so that it may be submitted to the State.

Overview of sampling requirements for Automobile Recycling (SIC: 5015) and Scrap Metal Industries (SIC: 5093). For other industries or more information, please feel free to contact us.

State SIC Sampling Required Frequency Waiver Possibility


Impaired water body


Stormwater discharge water runoff due to rain event

Outfall designated location to collect stormwater sample. The location where stormwater runs off from the facility.