C.M.R. 06, 096, ch. 691, app 096-691-T
These requirements apply to all sumps and spill buckets at underground storage tank facilities. Waste fluids are encountered during routine inspections of sumps and spill buckets, after spills, and during integrity testing. Containment sumps must be tested for integrity in accordance with the provisions of section 5(D)(18) and the Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities, PEI RP 1200, or the manufacturer's instructions, or an alternate procedure approved by the Department. The following steps must be followed to minimize the quantity and hazard of the wastes generated:
1. Routinely and before any integrity testing, wipe out the sumps and spill buckets. Remove petroleum residue so that any water that enters the sump or spill bucket will remain uncontaminated. Dispose of wipes and absorbent material as oily debris or hazardous waste depending on test results or generator knowledge;
2. Remove and properly manage in accordance with all applicable local, state and federal requirements liquids that have accumulated in the sumps and spill buckets. Determine by visual and olfactory means if the liquids are petroleum contaminated. Clean liquids and clean test fluids with no petroleum odors or sheen may be transported to a wastewater treatment facility with the facility's permission, or the liquid can be collected and sent to a facility authorized to accept the liquids. When new sumps are tested with clean water, the test waters may be discharged onsite with the owner's permission. If the liquid exhibits petroleum odors or a sheen, then the liquid must be containerized, and using appropriate representative sample collection procedures and sealable sample containers, sample the surface layer for laboratory analysis. The analysis must be conducted by a laboratory certified by the Maine Department of Health and Human Services, Laboratory Certification Program using certified laboratory procedures. The analysis must include flash point, TCLP, EPH, and VPH analytical method to determine proper treatment and/or disposal. Alternately, the owner of the facility or generator of the waste may elect to manage the waste as a hazardous waste using generator knowledge of the waste. Waste that is determined to be a hazardous waste must be managed in accordance with the Hazardous Waste Management Rules, 06-096 C.M.R. ch. 850-857;
3. Examine the sumps and spill buckets for signs of damage, cracks or holes. If cracks or holes exist, repair or replace the damaged item in accordance with this Chapter. Do not conduct integrity testing on a sump or spill bucket with a crack or hole;
4. When conducting integrity testing of sumps and spill buckets, the testing company must either:
A. Utilize uncontaminated water for each test to minimize the amount of petroleum contaminated liquids that will require disposal and prevent introduction of potentially contaminated liquids to the containment, or
B. If water is to be reused for additional tests, the water remains a product of the testing company and may be reused until it no longer is acceptable for reuse, usually due to contamination. Contamination will be determined through physical evidence such as sheen and olfactory means. Once evidence of contamination is present, the water must be managed as a waste by the testing company. The waste must be managed for disposal in accordance with the provisions of section 2 of this appendix. The testing company may not place the waste in an oil water separator or remove evidence of contamination through the use of sorbent pads or other means.
C. In either case for A or B above, the testing company will be responsible for the proper management and disposal of any test waters;
5. Petroleum and petroleum contaminated water found in sumps and spill buckets and water used for integrity testing may not be disposed on the ground, in storm drains, septic systems or in surface waters.
C.M.R. 06, 096, ch. 691, app 096-691-T