Code of Maine Rules
06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION
096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL
Chapter 420 - SOLID WASTE MANAGEMENT RULES: SEPTAGE MANAGEMENT RULES
Appendix 096-420-A - Sampling and Analysis for Sewage-Contaminated Grease
Sewage contaminated grease must be sampled and analyzed in accordance with the following criteria:
A composite sample of each load of sewage-contaminated grease must be collected and analyzed (per methods in EPA SW-846) for the metals listed below. The concentration of any metal may not exceed the maximum concentration as listed:
| Parameter | Maximum Concentration (mg-kg - Dry Weight) |
| Arsenic | 41 mg/kg |
| Cadmium | 39 mg/kg |
| Chromium | 1200 mg/kg |
| Copper | 1500 mg/kg |
| Lead | 300 mg/kg |
| Mercury | 17 mg/kg |
| Molybdenum | 75 mg/kg |
| Nickel | 420 mg/kg |
| Selenium | 100 mg/kg |
| Zinc | 2800 mg/kg |
In addition, sewage contaminated grease derived from treatment facilities that: 1) have flows above 2.5 million gallons per day (mgd), 2) receive wastewater from pulp and paper, tannery, textile or other significant industrial facilities or 3) are required to institute an industrial pre-treatment program must perform initial testing for dioxins as required by 06-096 CMR Chapter 567, and 06-096 CMR Chapters 400 et seq. Solid Waste Management Regulations. Grease with 2378 TCDD equivalents in excess of 27 ppt may not be land applied at a septage land application site.
