Did not use the most recent census data, or other updated information to estimate the population. [68.30(c)]. Did not estimate the population to two significant digits. [68.30(d)]. Did not document the methodology used to etermine distance to endpoints. [68.39(d)]. Did not document the data used to estimate population and environmental receptors potentially affected. [68.39(e)] Did not ensured the frequency of inspections and tests of process equipment is consistent with applicable manufacturers recommendations, good engineering practices, and prior operating experience. [68.73(d)(3)] The owner or operator has not certified that the stationary source has evaluated compliance with the provisions of the prevention program at least every three years to verify that the developed procedures and practices.