and the CD assessment results from Section 4.

Report the drift and accuracy information as a Data Assessment Report (DAR). and include one copy of this DAR for each quarterly audit with the report of emissions required under the applicable subparts of this part. As a minimum. the DAR must contain the following information: I. Source owner or operator name and address. 2. Identification and location of monitors in the CEMS. 3. Manufacturer and model number of each monitor in the CEMS. 4. Assessment of CEMS data accuracy and date of assessment as determined by a RATA, RAA, or CGA described in Section 5 including the RA for the RATA, the A for the RAA or CGA, the RM results, the cylinder gases certified values, the CEMS responses, and the calculations results as defined in Section 6. If the accuracy audit results show the CEMS to be out-of-control, the CEMS operator shall report both the audit results showing the CEMS to be out-of-control and the results of the audit following corrective action showing the CEMS to be opcrating within specifications. 5. Results from EPA performance audit samples described in Section 5 and the applicable RM's. 6. Summary of all corrective actions taken when CEMS was determined out-of-control, as described in Sections 4 and 5. An example of a DAR format is shown in Figure 1. 8. Bibliography 1. "A Procedure for Establishing Traceability of Gas Mixtures to Certain National Bureau of Standards Standard Reference Materials." Joint publication by NBS and EPA-600/7-81-010. Available from the U.S. Environmental Protection Agency. Quality Assurance Division (MD-77). Research Triangle Park, NC 27711. 2. "Traceability Protocol for Establishing True Concentrations of Gases Used for Calibration and Audits of Continuous Source Emission Monitors (Protocol Number 1)" June 1978. Section 3.0.4 of the Quality Assurance Handbook for Air Pollution Measurement Systems. Volume III. Stationary Source Specific Methods. EPA-600/ 4-77-0276. August 1977. U.S. Environmental Protection Agency. Office of Research and Development Publications, 26 West St. Clair Street, Cincinnati, OH 45268. 3. Calculation and Interpretation of Accuracy for Continuous Emission Monitoring Systems (CEMS). Section 3.0.7 of the Quality Assurance Handbook for Air Pollution Measurement Systems, Volume III, Stationary Source Specific Methods. EPA-600/4-77-0276. August 1977. U.S. Environmental Protection Agency. Office of Research and Development Publications, 26 West St. Clair Street, Cincinnati, OH 45268. FIGURE I-EXAMPLE FORMAT FOR DATA ASSESSMENT REPORT Period ending date Year Company name Plant name Source unit no. CEMS manufacturer Model no. CEMS serial no. CEMS type (e.g., in situ) CEMS sampling location (e.g., control device outlet) CEMS span values as per the applicable regulation: (e.g., SO₂ ppm. NO, ppm). I. Accuracy assessment results (Complete A, B, or C below for each CEMS or for each pollutant and diluent analyzer, as applicable.) If the quarterly audit results show the CEMS to be out-of-control. report the results of both the quarterly audit and the audit following corrective action showing the CEMS to be operating properly. Pt. 60, App. F A. Relative accuracy test audit (RATA) for (e.g., SO₂ in ng/J). 1. Date of audit 2. Reference methods (RM's) used (e.g., Methods 3 and 6). 3. Average RM value (e.g., ng/J, mg/dsm3, or percent volume). 4. Average CEMS value 5. Absolute value of mean difference [d] , 6. Confidence coefficient [CC] 7. Percent relative accuracy (RA) percent. 8. EPA performance audit results: (2) a. Audit lot number (1) b. Audit sample number (1) (2) c. Results (mg/dsm3) (1) (2) d. Actual value (mg/dsm3 (1) C. Relative accuracy audit (RAA) for (e.g., SO₂ in ng/J). (2) e. Relative error* (1) (2) Audit Audit point point I 2 1. Date of audit 2. Cylinder ID number 3. Date of certification 4. Type of certification (e.g., EPA Protocol I or CRM). 5. Certified audit value (e.g., ppm). 6. CEMS response value (e.g., ppm). 7. Accuracy percent. B. Cylinder gas audit (CGA) for (e.g., SO₂ in ppm). 1. Date of audit 2. Reference methods (RM's) used (e.g., Methods 3 and 6). 3. Average RM value (e.g., ng/J). 4. Average CEMS value 5. Accuracy percent. 6. EPA performance audit results: a. Audit lot number (I) (2) b. Audit sample number (1) (2) c. Results (mg/dsm3) (1) (2) d. Actual value (mg/dsm3) *(1) (2) e. Relative error* (1) (2) D. Corrective action for excessive inaccuracy. 1. Out-of-control periods. a. Date(s) b. Number of days 2. Corrective action taken 3. Results of audit following corrective action. (Use format of A. B, or C above, as applicable.) II. Calibration drift assessment. A. Out-of-control periods. 1. Date(s) 2. Number of days B. Corrective action taken [52 FR 21008, June 4. 1987; 52 FR 27612, July 22, 1987. as amended at 56 FR 5527, Feb. 11, 1991] * To be completed by the Agency. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 1 2 3 4 5 6 3 4 5 6 7 8 9 146 147 148 149 150 151 152 166 167 168 169 170 171 172 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 277 278 279 281 282 283 301 302 303 304 305 306 307 308 309 310 311 312 313 314 456 457 458 459 460 461 462 463 464 465 466 467 468 510 511 512 513 514 515 516 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 1 2 3 4