1990 021 Ordinance - Laserfiche WebLink

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If the percentage increase in volume of runoff is The"24 hour critical storm" Equal to or and for discharge limitation Greater than Less than limitation will be: 0 10 1 Year 10 20 2 Year 2p 50 5 Year 50 1:00 10 Year 100 250 25 Year 250 500 50 Year 500 --- 100 Year (D) The requirements shall be satisf ied at each location where runoff leaves the development area. The. runoff rates and volumes shall be considered for both the conditions before development and after development at each of these locations. (E) To ensure the continued functioning of stormwater control. structures, the following information shall. be identified to the satisfaction of the Village Engineer: 1. The person or entity responsible for continued maintenance. of the stormwater control structure and. the mechanism establishing responsibility; 2. Maintenance requirements and schedules; and 3. Permanent access and access easements. required to perform inspection and maintenance of stormwater control structures and storm water conveyance systems. VI. SENSITIVE AREA IMPACT CRITERIA The control of sediment. pollution. of sensitive areas by accelerated. erosion from earth disturbing activity may require additional erosion and sediment control practices beyond those indicated in these Rules. In such instances, the owner. or person responsible for earth disturbing activity shall analyze potential impacts. and potential erosion and. sediment. control practices. (A) The analysis shall identify: 1. Sensitive areas that receive drainage from. the proposed development area; 2. Existing water uses and biological characteristics of receiving waters; 3. The probability of sediment reaching sensitive areas; and 4. The percentage of the sensitive area's contributing drainage area that is proposed for the earth disturbing activity.