Reso 1996-081 to 085 - Laserfiche WebLink

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EXHIBIT A-1 Page 1 of 6 B. Pnct con!;trucdon Mitication and YIorumrino Monitoring, management and maintenance will be carried out for at least five years (or until the Corps determines that success criteria have been met) following WCDP implementation in order to assess restoration progress and verify satisfaction of enhancement objectives. Monitoring reports would be prepared and submitted to the Corps of Engineers annually. 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 2. Most criteria are based on improvements to baseline conditions while a few are based on comparison to reference sites. 2. Contingency Measures If monitoring reveals that the interim or final performance criteria are not being substantially 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-native exotic invasive species such as eastern cordgrass (Spartina alternifiora). Other corrective measures would include re -grading and re -excavating channels or modifying the water control system. In the event of an external threat, such as an oil spill in the Bay waters proximate to the WCDP area, and upon notification by the Corps, all culverts in the WCDP would be immediately closed. 3. Monitoring Methods and Frequency (including tidegate operation) Monitoring Nfethods Post -construction environmental monitoring would be carved out under the following five primary categones: Hydrology/Sedimentation - The hydrologic regime would be monitored by measuring the actual frequency, extent and duration of tidal inundation against that predicted in the WCDP. 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, observations of the hydrologic regime within the WCDP area will be made to evaluate tidal range, percent of area inundated, and culvert/channel operation. Sedimentation will be monitored by surveying on an annual basis up to five channel cross -sections within the North Marsh, Bunker Marsh, and Lower Roberts Landing Slough areas. U1