The City of Rio Grande City seeks competitive bids on sludge transportation and disposal services. The purpose of these specifications is to describe the minimum requirements of the Public Utilities Department for the sludge transportation and disposal contract. The quantities on the Invitation to Bid or attached quantities are estimates based on previous usage. These estimates are for acquainting the bidder with probable quantities to be expected during the contract period. These estimates are not intended to set forth minimum or maximum quantities of this contract and shall not be construed as such. This contract is intended for routine and continuous usage, and for large projects that occur the City reserves the right to go out for bids. Sludge disposal must be at a Texas Commission on Environmental Quality (TCEQ) permitted location. The City of Rio Grande City does not intend to utilize beneficial re-use (land application) for this contract term. The City requests that if re-use opportunities return to areas that provide savings in disposal fees, it shall be notified accordingly, for consideration of future contract term.