Data Acquisition and Handling System DAHS Approval Process

1. Data Acquisition and Handling System (DAHS) Approval Process Richard Basso PADEP, CEM Section

2. DAHS Revision 8 Approval Process Amended Phase I (Monitoring Plan) Phase II (Performance Testing) Phase III (Final Approval)

3. Purpose of DAHS Approval Determine that the system will meet new reporting format and code hours correctly. Electronic data reports (EDRs) pass format check. Emissions calculated correctly by the DAHS based on analyzer readings and other calculation factors. Different operational circumstances reported correctly. Provides an opportunity to correct problems discovered during the review.

4. Amended Phase I Basic client information Description of the DAHS Installation schedule DAHS calculation support

5. Basic Client Information Source and process description Will DAHS serve entire site or will there be different DAHSs for different sources? Continuous emission monitoring system (CEMS) description Type of CEMS (NOx, SO2, opacity, temperature, etc.) Units- lbs./hr, ppm, %, degrees, etc. Fuel factor or coal sampling

6. Description of DAHS Make, model, and software version Manufacturer’s literature Consultant contact information

7. Installation Schedule Proposed date DAHS will be installed. (or actual date if completed) During a source or plant wide outage. In parallel with old DAHS. (both collecting data) Switch over from old DAHS to new DAHS during normal operating hours, with potential for data loss.

8. DAHS Calculation Support Show how DAHS uses analyzer readings to derive minute and hourly values for each type of CEMS at the facility. Example spreadsheets or formulas, including fuel factors, data substitution, coal sampling and analysis, and opacity path length ratio correction (where applicable).

9. Phase II Conduct the DAHS accuracy test: 9 hourly averages from the DAHS are compared to 9 hours of manually or separately calculated averages. Test should be conducted for every CEMSs at the facility. Opacity systems also include a separate comparison using 60 one-minute averages.

10. Phase III Results of DAHS accuracy test Schedule of DAHS upgrade Example quarterly EDR files Minute data for example hours Example hours using data substitution, if applicable Excess files, if applicable

11. DAHS Accuracy Test Submit results of DAHS accuracy test. Include both DAHS results and separately calculated results. Show table comparing differences with error calculated. Include additional 60 minute comparison for opacity systems. Electronic mail is preferred for review of information.

12. DAHS Upgrade Schedule Date and hour old DAHS stopped collecting valid data. Date and hour new DAHS started valid data collection. Explain operational circumstance. Parallel data collection Process outage Note any hours of operational data that may have been lost during the transition.

13. Phase III Example EDR Files E-mail EDR files to the Department to conduct a format check. Only one file is needed for each type of CEMS. Example data may be used if real data is not yet available. Include excess and incident files for Opacity and Temperature CEMS. Show correct uses of Process Codes, Monitoring Codes, and the new Method of Determination Codes.

14. Phase IIIOperating Circumstances Review Send example hourly value and supporting minute data or quadrant data to support the following circumstances: Full hour of operation Invalid hour of operation Process down hour Maintenance/quality assurance hour Data substituted hour if applicable Excess or incident reports if applicable to support hourly data for opacity and temperature CEMSs

15. Questions?