As petitioners we are collectively petitioning the Northborough Board of Health to conduct an assessment of the radio frequency (RF) environmental health of the neighborhoods adjacent to Bearfoot Road to ensure the area is environmentally sound for residents with regard to frequencies and power density. We ask this, in light of the expected industrial growth as well as the request of National Grid for an additional monopole. FCC Guidelines apply to the aggregate RF readings in an area, not the incremental additional of each device. We seek to have an independent external expert assess and analyze the current RF levels in the neighborhoods adjacent industry and tower on Bearfoot Road, Route 290 and other ambient emissions to establish a baseline; model the additional RF emissions from the proposed installation at 55 Bearfoot Rd, including the additional carriers required by town bylaws; and assess whether the resulting worst case RF levels meet FCC exposure guidelines for residential exposure of children and adults. Until this study and analysis are completed, the Planning Board can not grant the National Grid special permit request, nor approve any further industrial growth in the area until assurances are obtained that the current and expected RF levels are safe and within FCC guidelines. We are not against industrial growth, but merely want to ensure our homes remain safe for our families. Please see below for the FCC Regulation extract: FCC Extract of OET Bulletin 65 August 1997 Multiple-Transmitter Sites and Complex Environments It is common for multiple RF emitters to be co-located at a given site. Antennas are often clustered together at sites that may include a variety of RF sources such as radio and television broadcast towers, CMRS antennas and microwave antennas. The FCC's exposure guidelines are meant to apply to any exposure situation caused by transmitters regulated by 22 See 47 C.F.R. 1.1307(b)(3), as amended.33 the FCC. Therefore, at multiple-transmitter sites, all significant contributions to the RF environment should be considered, not just those fields associated with one specific source. When there are multiple transmitters at a given site collection of pertinent technical information about them will be necessary to permit an analysis of the overall RF environment by calculation or computer modeling; When performing an evaluation for compliance with the FCC's RF guidelines all significant contributors to the ambient RF environment should be considered, including those otherwise excluded from performing routine RF evaluations, and applicants are expected to make a good-faith effort to consider these other transmitters.