Section Env-A 4709.08 - Monitoring and Verification Requirements(a) Offset projects under this part shall employ a system that provides metering of biogas volumetric flow rate and determination of CH4 concentration.(b) Annual monitoring and verification reports required by Env-A 4711.02(b) shall include monthly biogas volumetric flow rate and CH4 concentration determinations.(c) If the offset project is a regional digester, the following shall also apply: (1) Manure and organic food waste from each distinct source supplying to the anaerobic digester shall be sampled monthly to determine the amount of volatile solids present;(2) Any emissions reduction shall be calculated according to the mass of manure and organic food waste, in kilograms (kg), being digested and the percentage of volatile solids present before digestion, calculated in accordance with Env-A 4709.06 and Env-A 4709.07, and apportioned accordingly among sources; and(3) The project sponsor shall provide supporting material and receipts tracking the monthly receipt of manure and organic food waste, in kg, used to supply the anaerobic digester from each supplier.(d) If the offset project includes the digestion of organic food waste as provided in Env-A 4709.02(b), organic food waste shall be sampled monthly to determine the amount of volatile solids present before digestion, calculated in accordance with Env-A 4709.06 and Env-A 4709.07, and apportioned accordingly.(e) The project sponsor shall submit a monitoring and verification plan as part of the consistency application that: (1) Includes a quality assurance and quality control program associated with equipment used to determine biogas volumetric flow rate and CH4 composition;(2) Is specified in accordance with the applicable monitoring requirements listed in Env-A 4709.09, Table 4709-1;(3) Includes provisions for ensuring that measuring and monitoring equipment is maintained, operated, and calibrated based on manufacturer's recommendations;(4) Includes provisions for the retention of maintenance records for audit purposes; and(5) Requires biogas CH4 composition to be verified quarterly through gas sampling and third party laboratory analysis using applicable U.S. EPA test methods.(f) The monitoring and verification plan shall be certified by an independent verifier accredited pursuant to Env-A 4710.N.H. Admin. Code § Env-A 4709.08
#9481, eff 5-23-09; ss by #10469, eff 1-1-14