Environmental Workplan Development in California

Encon Environmental develops site-specific environmental workplans that connect investigation data, regulatory expectations, and practical construction methods for projects across California.

From early Phase I and Phase II work to detailed remedial excavation, injection, and system installation plans, our workplans are designed to be clear, defensible, and buildable.

  • Workplans tailored to California regulatory programs and local agencies.
  • Integration of assessment, remediation, and closure strategies.
  • Clear scopes of work for field crews, contractors, and stakeholders.

What Is an Environmental Workplan?

An environmental workplan is a detailed roadmap that explains how a site will be investigated, cleaned up, or otherwise managed to meet regulatory and stakeholder expectations.

Encon’s workplans translate technical findings and regulatory directives into clear scopes of work for field crews, contractors, and project stakeholders. We outline objectives, methods, sampling strategies, health and safety considerations, and reporting requirements so that everyone involved understands what will be done and why.

Our workplans are routinely used to respond to local and state agency requirements, support real estate and lending decisions, and coordinate construction activities at active facilities and redevelopment sites throughout California.

Common drivers for workplan development:
  • Regulatory directives from local CUPAs, Regional Boards, or city/county agencies.
  • Findings from Phase I and Phase II Environmental Site Assessments.
  • Requirements tied to UST, hydraulic lift, or clarifier removal and closure.
  • Planned remedial excavations or in-situ treatment programs.
  • Redevelopment, refinancing, or change-of-use for impacted properties.

Building Workplans on a Solid Technical Foundation

Effective workplans start with a clear understanding of the site. Encon draws on Phase I Site Assessments, Phase II subsurface investigations, soil and water testing and analysis, and building surveys to define the problem before prescribing a solution.

Where appropriate, we incorporate Health Risk Assessment concepts and screening-level evaluations so that proposed actions are proportional to the risk and aligned with California guidance. This helps avoid both over-scoping and under-scoping work, saving time and budget while meeting regulatory expectations.

Information that typically feeds into a workplan:
  • Phase I Site Assessments and historical use evaluations.
  • Phase II Investigations (soil, soil vapor, and groundwater data).
  • Soil and water testing and analysis results.
  • Lead-based paint, asbestos, and PCB building material surveys.
  • Preliminary Health Risk Assessment or screening evaluations.

Workplans for Remedial Excavations, Treatment, and System Installation

Once site conditions and objectives are defined, Encon develops workplans that describe the specific remedial and construction tasks to be performed. Our experience as both consultants and implementers allows us to propose approaches that can be built in the field safely and efficiently.

Workplans may cover one remedial technology or combine multiple approaches—for example, pairing remedial excavation with bio-remediation or chemical injection, followed by vapor extraction system installation and performance monitoring.

Typical remedial elements addressed in Encon workplans:
  • Remedial excavations and off-site soil disposal or treatment.
  • Bio-remediation and chemical injection programs.
  • Vapor extraction systems and related vapor control measures.
  • Lead, PCB, and arsenic soil remediation approaches.
  • Hydraulic lift, UST / waste oil tank, and clarifier removal and closure.

Aligning Workplans with California Agencies and Stakeholders

Encon’s workplans are written with the audience in mind—regulators, property owners, operators, lenders, and construction teams. We clearly describe objectives, methods, and performance criteria so that agencies can review and approve the work while stakeholders understand scope, schedule, and potential impacts to operations.

We also plan for what happens after implementation: data collection, evaluation against cleanup goals, and documentation needed to demonstrate progress toward regulatory closure, risk reduction, or occupancy milestones for redevelopment projects.

Encon workplans typically include:
  • Project background, objectives, and regulatory context.
  • Summary of existing data and conceptual site model.
  • Detailed scope of work, methods, and quality assurance measures.
  • Health and safety, waste handling, and permitting considerations.
  • Performance metrics, reporting schedule, and completion criteria.

Need an Environmental Workplan for a California Project?

Whether you are responding to a new regulatory directive, planning remedial excavation or injection, or coordinating UST, lift, or clarifier removal, Encon Environmental can prepare a practical, defensible workplan tailored to your site and schedule.

Request a workplan proposal (562) 777-2200