AMB 28917 (105) SR UV Mont

Requested by: 317-308-3388 Haus, Jeremy OAQ/AMS JUSTIFICATION: (40 CFR Appendix-D-to-Part-58 (5)(b) details PAMS monitoring requirements including SR and UV.) This equipment and the associated supplemental parts are needed to replace ageing/failing equipment in the field. Older equipment loses its accuracy over time and must be replaced periodically to ensure valid data collection. These new units have the updated measurement ranges which is required at the PAMS monitoring sites as per the PAMS National Quality Assurance Project Plan (QAPP). They are also more accurate than the previous models, thereby reducing the amount of zeroing, and increasing the among of valid data collection. The three sets will replace ones in the field at the Indianapolis- Washington Park PAMS site and the Gary - IITRI site as well as one set to act as a side-by-side verification tool and as a spare set