Reso 1996-081 to 085 - Laserfiche WebLink

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EXHIBIT A-2 Page 2 of 8 1. Interim and Final Success Criteria Performance criteria have been developed to provide measurable goals against which the success of the WCDP can be assessed. These criteria are presented in Table 5. Most criteria are based on improvements to baseline conditions while a few are based on comparison to reference sites. ?. Contingency Measures If monitoring reveals that the interim or final performance criteria are not being substantiall, satisfied, appropriate corrective action will be taken. Corrective actions may include planting of appropriate salt marsh species, such as pickleweed or salt grass or removal of non-nati%e exotic invasive species such as eastern cordgrass (Sparrina alrerniflora). Other corrective measures would include re -grading and re -excavating channels or modifving the water control s\ stem. In the event of an external threat, such as an oil spill in the Bay waters proximate to the WCDP area, and/or upon notification by the Corps, all culverts in the WCDP would be closed. 3. Monitoring Methods and Frequency (including tidegate operation) Monitoring A ethods Post -construction environmental monitoring would be carved out under the following fire primary categories: Hydrology/Sedimentation - The hydrologic regime would be monitored by measuring the actual frequency, extent and duration of tidal inundation against that predicted in the Vv'CDP. Water elevation measuring staffs would be placed within the main channels of the 'north and Bunker Marsh areas to enable accurate assessment of water depth and elevation. Water depth will be measured in the East Marsh manually (i.e. with a measuring rod) and through visual observation. On an annual basis and during the same season each year, observations of the hydrologic regime within the WCDP area will be made to evaluate tidal range, percent of area inundated, and culvert/channel operation. As -built drawings, including cross -sections of channels, ditches and the marsh plain, shall be submitted to the Corps within three months of completing all init,-'I WCDP grading. The cross -sections shall be monumented and shall be of sufficient number to provide representative indication of over-all marsh topography. During the fifth year of monitoring, the same cross -sections shall be surveyed and the cross-section drawings submitted with that year's annual report. A discussion of any significant elevation changes since construction will also be provided. 53