The owner or operator shall conduct measurements of the amount of time that any visible fugitive emissions occur during an observation period by following 40 CFR 60, Appendix A, Method 22 - Visual Determination of Fugitive Emissions from Material Sources and Smoke Emissions from Flares.
N.H. Admin. Code § Env-A 807.03
#7788, eff 10-31-02; ss by #9802, eff 10-31-10