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(1) Install BMPs specified in Section 8 to reduce nitrogen export <br />amounts to 3.6 lbs /ac /yr. <br />(2) Pay a one -time offset payment of $330/lb. This offset fee will <br />go to the Wetlands Restoration Program (WRP) The WRP will <br />utilize these fees in accordance with the Basinwide Wetlands and <br />Riparian Restoration plans. It is the policy of the WRP to utilize <br />the funds where they are generated to the maximum extent <br />possible. <br />(3) A combination of BMPs and offset payments may be used to <br />achieve 3.6 lbs /ac /yr. <br />b) If the calculated export is greater than 6.0 lbs /ac /yr, the owner must <br />use on- site BMPs to lower the nitrogen export to 6.0 lbs /ac /yr. The owner <br />may then use one of the above options to achieve a nitrogen export level <br />of 3.6 lbs /ac /yr. <br />2. Commercial and Industrial <br />a) If the calculated export is less than 10.0 lbs /ac /yr, then the owner may: <br />(1) Install BMPs specified in Section 8 to reduce nitrogen export <br />amounts to 3.61bs /ac /yr. <br />(2) Pay a one -time offset payment of $330/lb. This offset fee will <br />go to the Wetlands Restoration Program (WRP) The WRP will <br />utilize these fees in accordance with the Basinwide Wetlands and <br />Riparian Restoration plans. It is the policy of the WRP to utilize <br />the funds where they are generated to the maximum extent <br />possible. <br />(3) A combination of BMPs and offset payments may be used to <br />achieve 3.6 lbs /ac /yr. <br />b) If the calculated export is greater than 10.0 lbs /ac /yr, the owner must <br />use BMPs to lower the nitrogen export to 10.0 lbs /ac /yr. The owner may <br />then use one of the above options to achieve a nitrogen export level of 3.6 <br />lbs /ac /yr. <br />D. Calculating Peak Runoff Volume <br />For all new development, there shall be no net increase in peak flow leaving the site from <br />the predevelopment conditions for the 1 year, 24 hour storm. <br />1. The following are acceptable methodologies for computing the pre- and post - <br />development conditions for the 1 year, 24 hour storm. <br />a) Rational Method <br />b) Peak Discharge Method as described in the USDA Soil Conservation <br />Service's Technical Release Number 55 (TR -55). <br />c) Putnam Method <br />d) Alternative methods must be approved by the County and the EMC <br />2. The same method must be used for both the pre- and post- development <br />conditions. <br />24 <br />