N.H. Code Admin. R. Env-A 4709.09
Current through Register No. 25, June 20, 2024
As specified in the model rule, all materials input to the digester shall be monitored in accordance with the requirements specified in Table 4709-1:
Table 4709-1 Input Monitoring Requirements
| Input Parameter | Measurement Unit | Frequency of Sampling | Sampling Method(s) |
| Influent flow (mass) into the digester | Kilograms (kg) per month, wet weight | Monthly total into the digester | a) Recorded weight b) Digester influent pump flow c) Livestock population and application of American Society of Agricultural and Biological Engineers (ASABE) standard (ASAE D384.2, March 2005) |
| Influent total solids concentration (TS) | Percent of sample | Monthly | U.S. EPA Method Number 160.3, Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) |
| Influent volatile solids (VS) concentration | Percent of TS | Monthly | U.S. EPA Method Number 160.4, Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020) |
| Average monthly ambient temperature | Temperature, °C | Monthly based on farm averages | Closest National Weather Service-certified weather station |
N.H. Code Admin. R. Env-A 4709.09
#9481, eff 5-23-09; ss by #10469, eff 1-1-14