Skip to main contentPsst! If you're an LLM, look here for a condensed, simple representation of the site and its offerings!

LiveFree Webinar — Wednesday, August 19 at 2:00 PM EDT

Register Free →

Maxville Vineyard Conversion Agricultural Erosion Control Plan (ECP) - P23-00130

Active
State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

Show more

The project involves the conversion of approximately 56.2 gross acres of sloped land, ranging from 5% to 37% gradient with an average slope of 20%, into a vineyard across three contiguous parcels in St. Helena, California, identified by APNs 025-020-023-000, 025-020-027-000, and 025-020-028-000. The development will consist of 42 net planted acres organized into ten blocks, reducing from the original proposal of 83.5 acres and 14 blocks. The site lies within the Napa River Watershed and the Sacramento River Watershed, specifically within the Lake Hennessey Sensitive Domestic Water Supply Drainage, and encompasses diverse native ecosystems including coast live oak, Oregon white oak, blue oak woodlands, wild oat grassland, and ruderal land, with minor areas of walnut orchard. In conjunction with vineyard development, 32.4 additional acres are designated for permanent preservation, augmenting the 520 acres already protected under a Forever Wildland Conservation Easement managed by the Napa County Land Trust. The Environmental Review addresses land-disturbing activities including vegetation clearing, earthmoving, and installation of erosion control measures required under Agricultural Erosion Control Plan P23-00130, ensuring compliance with CEQA, Napa County grading and conservation codes, and California Fish and Game Code Section 1603 for streambed alterations. All work must comply with stringent environmental and land use regulations, including a 50-foot setback from wetlands and 35-foot setback from ephemeral drainages, mandatory maintenance of 80% vegetative cover density, and restricted use of federally and state-approved chemicals. Erosion control must include mulch application, specific seed mixes, and proper fertilizer use as defined in County standards. Construction is scheduled in phases: pre-planting activities from April 1 to October 15, 2025, followed by planting from April 1 to June 1, 2026, with final operations concluding by October 15, 2026. A qualified professional must oversee implementation and certify compliance prior to final approval. Napa County’s Planning Division acts as the primary regulatory authority, with Dana Morrison serving as the contracting officer and Scott Garvey

General Info

Convert 56.2 acres to 42-net-acre vineyard in St. Helena with 32.4 acres preserved under conservation easement.

Agency

California → Napa County

NAICS

541620 - Environmental Consulting ServicesView NAICS

Place of Performance

Chiles Pope Valley Road and Lower Chiles Valley Road, St. Helena, CA, 94574

Set-Aside

NONE

Documents

(32)

Exhibit A

PDFother

Initial Study Maxville Vineyard P23-00130 ECPA

PDFinitial-study

Maxville Vineyard Conversion Agricultural Erosion Control Plan Notice of Completion

PDFnotice-of-completion

Exhibit E-1_Water Use Areas Map_OCR

PDF

Amendment to Petition for Change License 5300 Napa County

PDFamendment

Exhibit B - Canopy Preservation Area Map Revision 2

PDFspecifications

P23-00130 Maxville FIG 3

PDF

Exhibit D - Soil Loss Analysis for Maxville Winery

PDFsoil-loss-analysis

Exhibit D

PDF

Amendment of Deed of Conservation Easement for Koko Nor Corporation Property

PDFamendment

Notice of Intent to Adopt Mitigated Negative Declaration for Maxville Vineyard Conversion P23-00130

PDFnotice-of-intent

Right to Divert and Use Water Registration L032174 for Catacula Lake Winery

PDFwater-right-registration

P23-00130 Maxville FIG 2

PDF

Amended License 5300 for Diversion and Use of Water

PDFamended-license

Biological Resource Assessment for Maxville Winery & Vineyard Project

PDFbiological-resource-assessment

Addendum Response to Napa County Comments on Maxville Vineyard Biological Resource Assessment

PDFaddendum

Maxville Vineyard Agricultural Erosion Control Plan Revision Statement P23-00130-ECPA

PDFproject-revision-statement

Amended License 6874 for Diversion and Use of Water

PDFlicense-amendment

Review of Proposed Woodland Conservation Plan for Maxville Lake Vineyard

PDFother

Maxville Vineyard Erosion Control Plan Notification Letters and Memorandum P23-00130

PDFspecial-notice

P23-00130 TRACK I ECPA Narrative for Maxville Winery REV 1

PDFsow

Exhibit A - Vineyard and Habitat Impact Analysis 8/27/25

PDFother

Maxville Vineyard Conversion Agricultural Erosion Control Plan Summary Form

PDFenvironmental-summary

Amendment to Petition for Change License 6874 Napa County

PDFamendment

P23-00130 Maxville FIG 1

PDF

Exhibit C Vineyard Stability Report for Maxville Winery

PDFstability-report

Exhibit F-2_Hydrology Memo Land Cover Map_OCR

PDF

Right to Divert and Use Water Registration L032173 for Catacula Lake Winery

PDFcontract-document

Exhibit E_Baseflow Water Availability Analysis - OEI_OCR

PDFtechnical-memorandum

CDFW Comments on Maxville Vineyard Track 1 Erosion Control Plan IS/MND

PDFcomment

Exhibit H Application Submittal Materials OCR - Erosion Control Plan Application

PDFapplication-form

Exhibit F-1 Hydrology Report Maxville Winery REV 1

PDFhydrology-report

AI Contract Breakdown

Uniform Contract Format

Sign up to view the full breakdown with detailed analysis of each section.

Timeline

Posted

forecast

Ready to pursue this opportunity?

Start your free trial to track this contract, build proposals with AI assistance, and manage your pipeline.

Organization & Contact Information

Show more
AgencyCalifornia → Napa County
Contacts3 people available
OfficeN/A
Organization / Agency
California → Napa County
Office AddressN/A
Contacts
Dana Eleanor MorrisonSupervising Planner - Conservation
Koko Nor CorporationProperty Owner/Applicant
Coda RainsfordEngineering Manager

Interested Companies (1)

Show more
Consulting Firm - HD Vine
Santa Rosa, CA

Full Description

Show more
MAXVILLE VINEYARD: VINEYARD CONVERSION – ENVIRONMENTAL REVIEW of land disturbing activities on slopes greater than 5% associated with Agricultural Erosion Control Plan (ECP) #P23-00130-ECP, for the clearing of vegetation, earthmoving, and installation and maintenance of erosion control measures for conversion to vineyard of 56.2. gross acres of new vineyard (i.e., development area, proposed clearing limits) with 42 net planted acres in ten vineyard blocks (Blocks A through J) [reduced from original request of 83.5 acres and 14 blocks] of gentle to steeply sloped land (5-37% slope, with an average slope of 20% with 1.7 acres occurring on slopes over 30%) consisting of coast live oak woodland (2.8 acres out of 111.27 acres), oregon white oak woodland (0.8 acres out of 33.78 acres), blue oak woodland (6.9 acres out of 216.12), mixed oak forest (0.1 acres out of 121.43 acres), wild oat grassland (43.5 acres out of 301.65 acres), walnut orchard (0.15 acres out of 0.15 acres) and ruderal land (1.9 acres out of 30.55 acres) located within the Napa River Watershed (Chiles Creek) and the Sacramento River Watershed (Maxwell Creek – located within the Lake Hennessey Sensitive Domestic Water Supply Drainage) located on approximately 1,025 acres split across three (3) parcels (Assessors Parce Numbers [APNs]: 025-020-023-000, 025-020-027-000, and 025-020-028-000). The project also includes 32.4 acres identified for permanent preservation in addition to the 520 acres already in a Forever Wildland Conservation Easement under the oversight of the Napa County Land Trust.

Similar Contracts

Same NAICS industry code

NAICS: 541620
New
SLED
Environmental and Site Assessment ServicesThe contract seeks environmental and site assessment services for a leased facility located in Rutland, Massachusetts, with a primary focus on Phase I and Phase II environmental site assessments, asbestos surveys, and structural evaluations to ensure full compliance with regulatory and safety standards. These services are critical to identifying potential environmental contaminants, validating the presence or absence of asbestos-containing materials, and assessing the structural integrity of the facility prior to occupancy or operational use. The work must be conducted in accordance with applicable federal, state, and local environmental and health safety regulations to mitigate risks and ensure ongoing compliance. The solicitation is classified as a subcontract under NAICS code 541620, which pertains to environmental consulting services, and the proposal submission deadline is October 1, 2026, at 5:00 PM. The place of performance is specifically identified as Main Street in Rutland, with a ZIP code of 01543. The contracting entity is the Central Massachusetts Regional Emergency Communication Center under the Massachusetts agency, though no point of contact or set-aside provisions are specified. The contract is accessible via a public posting on the Commbuys platform, and all responsive offers must meet technical, regulatory, and compliance requirements to be considered for award.
CMR01 - Central Massachusetts Regional Emergency Communication Center

POSTED

about 17 hours ago

DEADLINE

in about 2 months
View Details
NAICS: 541620
New
SLED
Environmental & Archaeological AssessmentThe contract encompasses a comprehensive environmental and archaeological assessment to support permitting under the National Environmental Policy Act and Section 106 of the National Historic Preservation Act. It requires the performance of a Phase I Environmental Site Assessment to identify potential contamination, a wetland delineation to determine the extent and boundaries of wetland areas, and archaeological surveys to evaluate the presence of culturally significant resources. These activities are essential for documenting environmental and historical conditions prior to any proposed development or infrastructure projects in Dawson County, Georgia. The work must be conducted in accordance with federal regulatory standards to ensure compliance and facilitate the permitting process. This is a subcontract opportunity posted by the Development Authority of Dawson County, with a response deadline of September 7, 2026. The North American Industry Classification System code 541620 indicates the work falls under environmental consulting services. The performance location is within Georgia, though specific site details are not provided. Interested parties must submit proposals by the stated deadline to be considered, and all activities are intended to support regulatory compliance and due diligence for future development initiatives in the region.
Development Authority of Dawson County

POSTED

about 17 hours ago

DEADLINE

in about 1 month
View Details
NAICS: 541620
New
SLED
Environmental Compliance and MonitoringThe contract involves comprehensive environmental compliance and monitoring services focused on stormwater management, erosion control oversight, and regulatory reporting throughout the construction phase. The work is tied to a project under the Haralson County School District in Georgia and requires adherence to established environmental regulations, ensuring that construction activities do not negatively impact surrounding ecosystems or water resources. The contractor will be responsible for implementing and maintaining effective erosion and sediment control measures, conducting regular site inspections, documenting compliance efforts, and submitting required reports to regulatory authorities as needed. This subcontract is categorized under NAICS code 541620, which corresponds to environmental consulting services, indicating a professional scope centered on technical environmental management rather than physical construction. The solicitation was posted on August 7, 2026, with a response deadline set for September 9, 2026, providing interested parties a limited window to submit proposals. Performance is expected to occur in Georgia under the jurisdiction of the Haralson County School District, though specific site locations are not detailed in the provided data. The contract emphasizes continuous regulatory alignment and accurate documentation, making it critical that the selected vendor has demonstrated expertise in environmental monitoring and compliance reporting within construction environments.
Haralson County School District

POSTED

about 19 hours ago

DEADLINE

in about 1 month
View Details