NR 463.09(2)(a)(a) If the owner or operator of an affected source conducts performance testing at startup to obtain an operation permit under ch. NR 407, the results of the testing may be used to demonstrate compliance with this subchapter if all of the following conditions are met:

NR 463.09(2)(a)4.4. The owner or operator of the affected source for which the performance test was conducted has sufficient data to establish the operating parameter values that correspond to compliance with the standards in s. NR 463.04, as required for continuous compliance monitoring under s. NR 463.07.

NR 463.09(2)(b)(b) The results of tests conducted prior to December 1991 in which Method 306A in Appendix A of 40 CFR part 63, incorporated by reference in s. NR 484.04, was used to demonstrate the performance of a control technique are not acceptable.

NR 463.09(3)(3) Test methods. Each owner or operator subject to the provisions of this subchapter and required by s. NR 463.06 (3) to conduct an initial performance test shall use the test methods identified in this section to demonstrate compliance with the standards in s. NR 463.04.

NR 463.09(3)(a)(a) Method 306 or Method 306A in Appendix A of 40 CFR part 63, both titled “Determination of Chromium Emissions From Decorative and Hard Chromium Electroplating and Anodizing Operations,” which are incorporated by reference in s. NR 484.04, shall be used to determine the chromium concentration from hard or decorative chromium electroplating tanks or chromium anodizing tanks. The sampling time and sample volume for each run of Methods 306 and 306A shall be at least 120 minutes and 1.70 dscm (60 dscf), respectively. Methods 306 and 306A allow the measurement of either total chromium or hexavalent chromium emissions. For the purposes of this subchapter, sources using chromic acid baths may demonstrate compliance with the emission limits of s. NR 463.04 by measuring either total chromium or hexavalent chromium. The hexavalent chromium concentration measured by these methods is equal to the total chromium concentration for the affected operations.

NR 463.09(3)(b)(b) Method 306B in Appendix A of 40 CFR part 63, “Surface Tension Measurement and Recordkeeping for Tanks Used at Decorative Chromium Electroplating and Anodizing Facilities,” incorporated by reference in s. NR 484.04, shall be used to measure the surface tension of electroplating and anodizing baths.

NR 463.09(3)(c)(c) Alternate test methods may also be used if the method has been validated using Method 301 in Appendix A of 40 CFR part 63, incorporated by reference in s. NR 484.04, and if approved by the department. Procedures for requesting and obtaining approval are contained in s. NR 460.06 (5).

NR 463.09(4)(a)(a) Each owner or operator required to establish site-specific operating parameters shall follow the procedures in this subsection.

NR 463.09(4)(b)(b) All monitoring equipment shall be installed such that representative measurements of emissions or process parameters from the affected source are obtained. For monitoring equipment purchased from a vendor, verification of the operational status of the monitoring equipment shall include execution of the manufacturer’s written specifications or recommendations for installation, operation and calibration of the system.

NR 463.09(4)(b)1.1. Specifications for differential pressure measurement devices used to measure velocity pressure shall be in accordance with section 2.2 of Method 2 in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 484.04.

NR 463.09(4)(b)2.2. Specifications for differential pressure measurement devices used to measure pressure drop across a control system shall be in accordance with manufacturer’s accuracy specifications.

NR 463.09(4)(c)(c) The surface tension of electroplating and anodizing baths shall be measured using Method 306B in Appendix A of 40 CFR part 63, “Surface Tension Measurement and Recordkeeping for Tanks Used at Decorative Chromium Electroplating and Anodizing Facilities,” incorporated by reference in s. NR 484.04. This method shall also be followed when wetting agent type or combination wetting agent/foam blanket type fume suppressants are used to control chromium emissions from a hard chromium electroplating tank and surface tension measurement is conducted to demonstrate continuous compliance.

NR 463.09(4)(d)(d) The owner or operator of a source required to measure the velocity pressure at the inlet to an add-on air pollution control device in accordance with s. NR 463.07 (2), shall establish the site-specific velocity pressure as follows:

NR 463.09(4)(d)1.1. Locate a velocity traverse port in a section of straight duct that connects the hooding on the plating tank or tanks with the control device. The port shall be located as close to the control system as possible, and shall be placed a minimum of 2 duct diameters downstream and 0.5 diameter upstream of any flow disturbance such as a bend, expansion or contraction (see Method 1 in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 484.04). If 2.5 diameters of straight duct work does not exist, locate the port 0.8 of the distance between flow disturbances downstream and 0.2 of the distance between flow disturbances upstream from the respective flow disturbances.

NR 463.09(4)(d)2.2. A 12-point velocity traverse of the duct to the control device shall be conducted along a single axis according to Method 2 in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 484.04, using an S-type pitot tube; measurement of the barometric pressure and duct temperature at each traverse point is not required, but is suggested. Mark the S-type pitot tube as specified in Method 1 in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 484.04, with 12 points. Measure the velocity pressure (∆p) values for the velocity points and record. Determine the square root of the individual velocity point ∆p values and average. The point with the square root value that comes closest to the average square root value is the point of average velocity. The ∆p value measured for this point during the performance test shall be used as the reference for future monitoring.

NR 463.09(4)(e)(e) The owner or operator of a source required to measure the pressure drop across the add-on air pollution control device in accordance with s. NR 463.07 (1) to (4) may establish the pressure drop in accordance with the following guidelines:

NR 463.09(4)(e)1.a.a. At the inlet and outlet of the control system. In this case the inlet tap would be installed in the ductwork just prior to the control device and the corresponding outlet pressure tap would be installed on the outlet side of the control device prior to the blower or on the downstream side of the blower.