COMPREHENSIVE EVERGLADES RESTORATION PLAN (CERP) INDIAN RIVER LAGOON SOUTH (IRL-S) C-44 RESERVOIR AND STORMWATER TREATMENT AREA (C-44 RSTA) SEEPAGE MANAGEMENT FEATURE - RELIEF WELLS CONTRACT A, MARTIN COUNTY, FLORIDA

Statement of Work (SOW) / Performance Work Statement (PWS)

This document outlines the specifications and requirements for the construction and installation of relief wells as part of the CERP, IRL-S, C-44 Reservoir and Stormwater Treatment Area Seepage Management Feature, Relief-Wells Contract A.

The work includes furnishing all labor, materials, and equipment for drilling relief well boreholes, setting casing, assembling relief wells, placing filter pack, and sealing and grouting materials. It also covers relief well development, pump and sand testing, video inspections, and chlorine treatments. Specific tasks include:

• Drilling well boreholes and setting casing.

• Assembling and centering relief wells.

• Placing filter pack and sealing/grouting materials.

• Relief well development and testing (pump and sand).

• Video inspections and chlorine treatments.

• Installation of check valves and angular face rings.

• Plugging of abandoned holes.

• Specific material requirements for well screens, filter pack, grout, and check valves.

• Performance criteria for drilling fluid additives, filter pack gradations, and effective size.

• Requirements for pump and sand testing, including acceptable sanding rates (less than 5 ppm).

• Quality control measures, including inspections, sampling, testing, and documentation.

• Specific procedures for drilling, development, and testing.

Not explicitly stated in this document, but it pertains to the "Relief-Wells Contract A" for the CERP, IRL-S, C-44 Reservoir and Stormwater Treatment Area.

• All work must be performed by a licensed well driller in Florida.
• Compliance with various AWWA, AWS, ASTM, and Florida Administrative Code standards.
• Specific submittal requirements, including shop drawings, product data, and test reports.
• Strict quality control and documentation procedures.
• Obtaining all necessary local, state, or federal permits.
• Use of approved drilling fluid additives and filter pack sources.
• Detailed procedures for mechanical surging, pump surging, pump testing, and sand testing.

Statement of Work (SOW) / Performance Work Statement (PWS)

This document outlines the specifications for "Earthwork" (Section 31 00 00) related to the CERP, IRL-S, C-44 Reservoir and Stormwater Treatment Area Seepage Management Feature - Relief-Wells Contract A.

This specification details the requirements for various earthwork activities, including:

• Excavation: Including trench excavation, excavation for appurtenances, and handling of underground utilities.

• Protection: Measures for protecting underground utilities, drainage, dewatering, shoring, sheeting, and graded surfaces.

• Borrow: Requirements for obtaining and managing borrow materials.

• Surface Preparation: Including stripping and stockpiling operations.

• Filling and Compaction: Specifications for trench backfill, bedding, initial backfill, final backfill, flowable fill, and backfill for appurtenances.

• Gravel Apron: Construction of gravel aprons.

• Finishing Operations: Grading and topsoil application.

• Disposition of Surplus Material: Procedures for managing excess soil.

• Testing: Requirements for material testing and reporting.

• Compaction: Degree of compaction is expressed as a percentage of the maximum density obtained by ASTM D698 (Proctor method). Specific compaction requirements are detailed for various fill types (e.g., 95% for trench backfill, 90% for turfed/seeded areas).

• Testing: Material testing is required for fill, pipe bedding, and blended manhole stockpiles, with specific ASTM standards and frequencies outlined in Table 1.

While not explicitly stated as a contract period, the document references operations related to the "CERP, IRL-S, C-44 Reservoir and Stormwater Treatment Area Seepage Management Feature - Relief-Wells Contract A." The reservoir will be operated up to elevation 36 feet NAVD88 during the work.

• References: The specification references numerous ASTM standards and other publications (FDOT Specifications, EM 385-1-1).
• Quality Control: Requires a Professional Geotechnical Engineer for inspection and a Qualified Technician for monitoring and field testing.
• Submittals: Various submittals are required, including excavation and trenching plans, borrow plans, dewatering work plans, product data, mix designs, samples, and test reports.
• Safety: Work must be performed in accordance with EM 385-1-1 Safety and Health Requirements Manual.
• Dewatering: Specific requirements for controlling groundwater, including maintaining water levels and avoiding disturbance to the WRPC water level.