Biosolids (also referred to as treated sewage sludge) are the solids derived from primary, secondary, or advanced treatment of domestic wastewater. All wastewater facilities operate under either a National Pollutant Discharge Elimination System (NPDES) or Water Pollution Control Facility (WPCF) permit.
Biosolid Analysis Package
| Ammonia | Fecal Coliforms | Nitrite | Total Solids |
| Arsenic | Lead | pH | Total Volatile Solids |
| Cadmium | Mercury | Potassium | Zinc |
| Chromium | Molybdenum | Selenium | |
| Conductivity | Nickel | Total Kjeldahl Nitrogen | |
| Copper | Nitrate | Total Phosphorus |
Also Available
Fecal Coliform
Cyanide
For more information and contacts regarding permits, please visit the Oregon DEQ Biosolids Program website at https://www.oregon.gov/deq/wq/programs/Pages/Biosolids.aspx