The costs the County may reasonably incur to evaluate requests for placement of communications equipment on County facilities include without limitation costs for engineering, valuation, environmental review, and other specialized services. The County may require requestors to deposit funds in an amount sufficient to cover its estimated costs, with any unused portion of the deposit subject to refund at the time the County grants or denies the request in writing, or at the time the requestor withdraws the request, whichever first occurs. The County may also require additional funds to be deposited as it conducts a review of the request if the deposit is expected to be insufficient to defray all costs incurred. The evaluation process must include a certification by the System Manager, as defined in Section
416.020 of the Ordinances of St. Charles County, Missouri, that the proposed placement will not interfere with the County's emergency communications system.