Vineyard Design and Consulting

2800 Jefferson Street
Napa, California 94558
Phone (707) 253-1806
Fax (707) 253-1604

Permitting Services

PPI Engineering provides design-to-construction services for all our vineyard projects, which includes managing the projects throughout the permitting phase.  PPI has extensive experience in both Napa and Sonoma Counties with their respective requirements and maintains a good working relationship with the staff members that are involved with reviewing the projects.  PPI staff has extensive experience with California Environmental Quality Act (CEQA) compliance.  In the last nine years PPI has successfully managed four large new vineyard projects that required an Environmental Impact Report (EIR) in Napa County, as well as numerous smaller projects that required a Mitigated Negative Declaration, Negative Declaration or were Categorically Exempt from CEQA.


PPI provides services to secure applicable government permits and approvals at the Federal, State and local level, including (but not limited to): Lake and Streambed Alteration Agreements from the California Department of Fish & Wildlife; Nationwide Permits from the U.S. Army Corps of Engineers under Section 404 of the Clean Water Act; Section 401 Water Quality Certifications from Regional Water Quality Control Boards; Grading Permits from Napa County Planning, Building & Environmental Services; Grading and Drainage Permits from Sonoma County Permit & Resource Management Department (PRMD); and Stormwater Pollution Prevention Plans (SWPPPs).