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ill t The TNRCC Edwards Aquifer rules~ (3) V.T.C.A Water Code, Chapter 26, as amended; and (4) V.T.C.A. Local Government Code, Section 401.002, as amended. \Vith respect to the requirements for development plats contained in this article, the requirements are adopted under authority of V.T.C.l~. Local Government Code Chapter 212, Subchapter B, as amended. (b) Where a provision of this article conflicts with a provision of the TNRCC Edwards Aquifer rules, or any other provision of this Code article 3 of this chapter (pertaining to drainage and erosion control), the stricter provision, with respect to the effects imposed on a development regulated activity, will govern. Sec. 94.503. Definitions. In this article: Best management practices or BMPs means activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of the Edwards Aquifer and hydrologically connected surface streams. BMPs also include treatment requirements, operating procedures, and practices to control site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage. BMPs are described in the TNRCC BMP Guidance Manual. Buffer zone means an area of land adiacent to a water quality zone for a minor waterway, intermediate waterway or maior waterway, that serves a function of filtering contaminants from water that drains across the area. Commence construction or commencing construction means the initial disturbance of soils associated with clearing, grading, or excavating activities or other construction or development regulated activities. Commission means the city planning and zoning commission. Critical watcr quality zonc means the area along minor, intermediate or major waterways where no development or disturbance of native vegetation is allovied, other than appro','cd road and utility crossings. Develooment means any construction-related activity, other than an exempt activity described in section 94.504( c), having the potential for polluting the aquifer or surface streams that are hydrologically connected to the aquifer. Development includes, but is not limited to: (1) construction of buildings, utility stations, utility lines, sewage lift stations, roads, highways, or railroads; or C:\TEMP\Edwards Regulations revision final.doc 4