S.D. Admin. R. 74:36:07:136

Current through Register Vol. 50, page 162, June 24, 2024

Section 74:36:07:136 - Recordkeeping for existing municipal solid waste landfill - Surface methane

The owner or operator seeking to demonstrate site-specific surface methane emissions are below 500 parts per million by conducting surface emission monitoring under the Tier 4 procedures must keep for at least five years up-to-date, readily accessible records of all surface emissions monitoring and information related to monitoring instrument calibrations conducted according to 40 C.F.R., Part 60, Appendix A, Method 21, sections 8 and 10 (July 1, 2018), including all of the following items:

(1) The following calibration records:

(a) Date of calibration and initials of operator performing the calibration;

(b) Calibration gas cylinder identification, certification date, and certified concentration;

(c) Instrument scale(s) used;

(d) A description of any corrective action taken if the meter readout could not be adjusted to correspond to the calibration gas value; and

(e) If an owner or operator makes their own calibration gas, a description of the procedure used;

(2) Digital photographs of the instrument setup. The photographs must be time and date-stamped and taken at the first sampling location prior to sampling and at the last sampling location after sampling at the end of each sampling day, for the duration of the Tier 4 monitoring demonstration;

(3) Timestamp of each surface scan reading. The timestamp should be detailed to the nearest second and based on when the sample collection begins. A log for the length of time each sample was taken using a stopwatch. The time each sample is take means the time the probe was held over the area.

(4) Location of each surface scan reading. The owner or operator must determine the coordinates using an instrument with an accuracy of at least four meters. Coordinates must be in decimal degrees with at least five decimal places;

(5) Monitored methane concentration, in parts per million, of each reading;

(6) Background methane concentration, in parts per million, after each instrument calibration test;

(7) Adjusted methane concentration using most recent calibration, in parts per million;

(8) For readings taken at each surface penetration, the unique identification location label matching the label specified in § 74:36:07:133; and

(9) Records of the operating hours of the gas collection system for each destruction device;

S.D. Admin. R. 74:36:07:136

46 SDR 064, effective 11/25/2019

General Authority: SDCL 34A-1-6.

Law Implemented: SDCL 34A-1-18.