2007 Annual Monitoring Report (pdf 16MB) - Bolsa Chica Lowlands ...

Bolsa Chica Lowlands Restoration Monitoring2007 Annual ReportIn additional to the schedule in Figure 0-2, a table summarizing the dates of each field event during2007 is provided in Appendix 1-A.HORIZONTAL AND VERTICAL REFERENCE DATAThe vertical datum used throughout this document is North American Vertical Datum of 1988(NAVD88), with units expressed in meters. For purposes of equating this datum to recognizedbiological zonation patterns in tidal marine systems, NAVD88 roughly equates to Mean Lower LowWater (MLLW). More precisely, at the project site, NAVD88 lies approximately 0.06 m (0.2 feet)above National Ocean Service (NOS) MLLW and 0.79 m (2.6 feet) below NOS Mean Sea Level(MSL; NOS, 2007).Horizontally geo-referenced data are in meters relative to California State Plane Zone 6, NorthAmerican Datum of 1983 (NAD 83).DEFINITIONS AND GEOGRAPHIC REFERENCESTo assist the reader, this section has been provided to serve as a reference for terminology andabbreviations used in this report. In addition, this section includes a map of the Bolsa Chica Lowlandsand surroundings labeled with place names to assist in following discussions that are geographicallyreferenced to particular areas within the site (Figure 0-1).Term Abbreviation NotesFull Tidal Basin FTB Area: 158.3 hectare (ha)(391.2 acres [ac])Future Full Tidal Basin FFTB Area: 103.8 ha (256.5 ac)Muted Tidal Basin MTB Area: 76.6 ha (189.3 ac) (not joined to FTB)Seasonal PondsArea: 49.6 ha (122.5 ac)Muted Pocket Marsh MPM Area: 14.0 ha (34.7 ac)Nest Site 1 NS 1Nest Site 2 NS 2Nest Site 3 NS 3South Tern Island STI Inner Bolsa Bay (LETE and SNPL monitoring only)North Tern Island NTI Inner Bolsa Bay (LETE and SNPL monitoring only)Rabbit IslandIntertidal island in northwest portion of FTBWater Control Structure WCS Gates to regulate flow into and out of MTBsMerkel & Associates, Inc. 11