Ord 2000-022 - Laserfiche WebLink

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or waste disposal, or drainage from raw material storage. BMPs are described in the TNRCC BMP Guidance Manual. Commence construction or commencing construction means the initial disturbance of soils associated with clearing, grading, or excavating activities or other construction or regulated activities. Commission means the city planning and zoning commission. Critical water quality zone means the area along minor, intermediate or major waterways where no development or disturbance of native vegetation is allowed, other than approved road and utility crossings. Development plat means a scale drawing depicting all proposed improvements on a property on which a regulated activity is proposed. An approved development plat includes the approved geologic assessment and technical report, and any terms, restrictions or conditions imposed on a regulated activity under this article or by the planning director. Edwards Aquifer or aquifer means the portion of an arcuate belt of porous, waterbearing, predominantly carbonate rocks known as the Edwards (Balcones Fault Zone) Aquifer trending from southwest to northeast in Hays and adjacent counties. Engineering director means the director of the city Environment and Engineering Department. Geologic assessment means a report prepared by a qualified geologist describing site-specific geology. Geologic or manmade feature means a feature including, but not limited to, closed depressions, sinkholes, caves, faults, fractures, bedding plane surfaces, interconnected vugs, reef deposits, wells, borings, and excavations. Holder means the person who applied for and obtained approval of subdivision construction plans or a development plat for a regulated activity in the recharge zone. Impervious cover means impermeable surfaces, such as pavement or rooftops, which prevent the infiltration of water into the soil. The area of impervious cover at a site will be the area of the impermeable surface measured horizontally. The area of impervious cover for a surface may be reduced based on data acceptable to the engineering director showing that the surface has a significant degree of permeability. Intermediate waterway means any river, creek, stream, channel, or other watercourse that drains a watershed of at least 250 acres and no more than 1,000 acres. Major recharge feature means a sensitive geologic or marimade feature that, because of its characteristics and setting, is likely to cause a significant quantity of direct recharge of surface water to the Edwards Aquifer, and has a potential recharge rating of more than 20 points on a geologic assessment prepared to TNRCC standards by a qualified geologist. Major waterway means any river, creek, stream, channel, or other watercourse that drains a watershed of 1,000 acres or more. Minor recharge feature means a sensitive geologic or manmade feature that, because of its characteristics and setting, may cause small quantities of recharge of surface water to the Edwards Aquifer, and has a potential recharge rating of less than 15 points on a geologic assessment prepared to TNRCC standards by a qualified geologist. Minor waterway means any river, creek, stream, channel or other watercourse that drains a watershed of at least 50 acres and no more than 250 acres. Moderate recharge feature means a sensitive geologic or manmade feature that, because of its characteristics and setting, is likely to cause small quantities of direct recharge of surface water 3