National Pollutant Discharge Elimination System
The National Pollution Discharge Elimination System (NPDES) permit program is a centerpiece of the Clean Water Act (CWA), which regulates the discharge of wastewater into United States waters. All identified sources of wastewater must obtain a NPDES permit and withstand intense regulatory scrutiny.
Neilson Research Corporation performs regular monthly NPDES monitoring for cities, counties, school and government entities, and industrial and commercial facilities. Close attention is paid to changing requirements and deadlines so that fines and penalties are avoided. As part of our service to you, NRC will provide everything necessary for your required analysis including a convenient shipping container, sample bottles, ice packs, sampling instructions, and chain of custody and shipping documentation.
Common NPDES and WPCF permits which Neilson Research Corporation does analytical work for:
| Permit | Description | Type |
| 100-J | Cooling water/heat pumps | NPDES |
| 200-J | Filter backwash | NPDES |
| 300-J | Fish hatcheries | NPDES |
| 400-J | Log ponds | NPDES |
| 500-J | Boiler blowdown | NPDES |
| 600 | Offstream placer mining | WPCF |
| 700-PM | Suction dredges | |
| 900-J | Seafood processing | NPDES |
| 1000 | Gravel mining | WPCF |
| 1200-A | Stormwater permit for gravel mining | NPDES |
| 1200-C | Construction that disturbs one acre or more | NPDES |
| 1200-COLS | Industrial stormwater discharging to Columbia Slough | NPDES |
| 1200-Z | Industrial stormwater | NPDES |
| 1300-J | Oil stormwater runoff, oil/water separators | NPDES |
| 1400-A | Wineries, fresh pack food processors | WPCF |
| 1400-B | Canneries, food/animal processing, extracts | WPCF |
| 1500-A | Tanks cleanup and treatment of groundwater | NPDES |
| 1700-A | Wash Water | NPDES |
| 1700-B | Wash Water | WPCF |
| 1900-J | Non-contact geothermal | NPDES |
Source: http://www.deq.state.or.us/