Wastewater Treatment Systems for Construction Dewatering Operations and Storm Water Pollution Prevention
In compliance with NPDES permits issued by the RWQCB, ESI has completed site-specific plans for the proper storage, handling, and treatment of storm water and non-storm water for various contracts. These submittals include Storm Water Pollution Prevention Plans (SWPPPs), Excavation Dewatering Plans (EDPS) (in conjunction with project geology and/or engineering professionals), and “Operation and Maintenance Manuals” for a proposed effluent on-site treatment system.
Under the requirements of the project site's specifications and in compliance with NPDES permits issued by the Regional Water Quality Control Board (RWQCB), ESI received subcontracting agreements in several construction contracts to provide a Notice of Intent (NOI) application package to the Water Board, signed by the owner and a Registered Professional Engineer (retained for the project) to obtain authorization to discharge treated groundwater impacted with fuel hydrocarbons and metals into the local receiving waters. Tasks included assisting our client by completing an Engineering Certification Report (ECR) under the direction and oversight of a trusted Professional Engineer retained specifically for the project in order to certify the system provider’s proposed treatment system design, process flow, and equipment. Value engineering solutions were suggested and utilized to minimize cost or enhance efficiency. In addition, throughout the course of the construction dewatering projects, ESI's lab certified technicians provided sampling and monitoring of treated water in accordance with the permit-required self monitoring program and frequencies.
Envirosurvey, Inc. has over twenty-five years of collective experience in environmental remediation projects with emphasis on contaminated soil, surface water, and groundwater. ESI’s team expertise relevant to this project includes an innovative approach using the latest automated control systems, as well as expertise with polymer coagulant chemistry and its utility in the treatment of storm water runoff. The ESI team is also experienced in subcontract administration, feasibility studies, water chemistry, and stormwater and non-stormwater plans and submittals for large-scale construction projects.
The following images were taken from groundwater treatment projects performed by ESI at various sites throughout the Bay Area:
