10 Sylvan Ln Creek Bank Erosion Protection Project (Notification of Lake or Streambed Alteration, No. EPIMS-MAN-59504-R3

The project at 10 Sylvan Lane in Ross, California, involves biotechnical erosion control along 155 feet of Corte Madera Creek behind a single-family residence, aimed at stabilizing a degraded bank through ecological engineering methods. Work includes dewatering the site, constructing a temporary access ramp using a mid-sized excavator, excavating a keyway, and installing two-ton and one-ton boulder riprap, buried rock, and boulder-anchored logs with rootwads. Live willow cuttings will be planted within the rock slope protection to create a self-sustaining vegetated barrier that integrates with the natural environment. Seven riparian trees—five California bay, one bigleaf maple, and one non-native ficus—will be removed to facilitate construction. The project generates 2,283 square feet of temporary construction impacts and 1,184 square feet of permanent disturbance from the installed riprap, offset by 959 square feet of net habitat enhancement through live planting and placement of large woody debris that supports aquatic and riparian ecosystems. The project operates under a California Department of Fish and Wildlife categorical exemption (CEQA Class 3, CCR Title 14, Section 15303) for small-scale habitat restoration, and is registered under regulatory tracking number EPIMS-MAN-59504-R3. No federal acquisition regulation clauses, contract pricing, payment information, packaging requirements, or formal solicitation details are present, indicating this is a state-level environmental project rather than a federally procured contract. The work is carried out by David Baylor, with oversight and approval responsibilities held by the California Department of Fish and Wildlife, Region 3 – Bay Delta, and key contacts include Environmental Scientist Jordan Beaton and Environmental Program Manager Craig J. Weightman. There is no formal period of performance, delivery schedule, or contract type specified, and the document serves as a notification of exemption and project description rather than a binding procurement instrument. All activities are confined to the identified site in Ross, California, with no shipping, marking, or federal logistical requirements applicable.