CC-5352-23TAD_Scope_of_Services.pdf

CIP 227409

SCOPE OF SERVICES

GREENWOOD LAKES WRF R&R

SODIUM HYPOCHLORITE TANKS

REPLACEMENT

8/30/2023

Environmental Services Department

Utilities Engineering Division

500 W Lake Mary Blvd

Sanford FL 32773

SEMINOLE COUNTY FLORIDA

CC-5352-23/TAD

1.0 SCOPE OF WORK

• The purpose of this project is to disconnect, remove and dispose of three 2500-gallon Vertical

Sodium Hypochlorite bulk storage tanks and appurtenances. Provide and install three new

2500-gallon Vertical Sodium Hypochlorite bulk storage tank including an underlayment pad between the tank and existing concrete base. The pad shall be one approved of by the tank manufacturer. Provide all required appurtenances and materials for installation, connection to the existing feed system and anchoring. The manufacturer of the new tank shall be Houston

Poly Tank LLC so as to match the newer fourth existing tank. The Contractor shall meet all requirement as listed herein. Refer to the existing newer Houston Poly tank name plate for specifications and type.

• The location is the Seminole County Greenwood Lakes WRF at 701 Greenway Blvd Lake Mary FL

32746.

• The project shall include all materials, labor and equipment for a complete removal, disposal, installation, connections and testing which will result in fully operational Sodium Hypochlorite bulk storage tanks with no leaks from the tank and no leaks at any of the connection piping or tubing.

• Contractor shall provide all required equipment and labor necessary to substantially complete the tank replacements, (actual allowable construction time) in 14 days or less from start of construction activities as defined Herein and in the Technical Specifications.

• All materials required to complete this project shall be provided by the Contractor at no additional cost to the Owner.

• Two of the existing functional tanks shall be temporarily staged outside of the existing structure and plumbed together and into the metering skid to maintain plant operations without interruption during the construction.

• Transference of the Sodium Hypochlorite between tanks prior to and after the construction acceptance shall be the responsibility of the Contractor.

• The Owner shall be responsible for maintaining adequate supply of the NAOCL in the temporary tanks during construction and filling of the new tanks as needed post installation and testing.

1.1 CONTRACTOR RESPONSIBILITIES

A. Contractor shall verify that the existing tanks and all connected lines are void of any liquids and safe to remove prior to any work being performed.

B. Work within the Seminole County Environmental Services guidelines regarding safety, environmental protection and resident consideration.

C. Coordinate all activities and report progress on a daily basis to the SEMCO Utilities Engineering assigned Project Manager or Inspector.

D. Be able to work extra hours or through the night should an emergency or other potentially catastrophic situation require the need.

E. Obtain and pay for all required permits, testing, locating and inspections required at each site and make available any inspection certificates during the progress of work.

F. Locate and protect all utilities (including underground utilities) necessary to complete the work specified herein. Verify all field conditions and measurements.

G. Furnish all materials, equipment and labor required to complete this project.

H. The Contractor will be responsible for activities at the work sites including securing any required permits and reporting of any spills or permit violations.

I. Perform the removals and installations in a manner not to damage any equipment, systems, structures and or surrounding grounds that are to remain. Grade and sod all disturbed areas, repair or replace damaged pavement, signs or structures that are to remain which was caused by the project operations at no additional cost to the Owner.

J. During removal and installation, any generated debris shall be contained by the contractor. All debris and demolition material shall by removed from each work site and disposed of by the

Contractor at no additional cost to the Owner. The Contractor shall dispose of all materials, equipment and debris in compliance with all Federal, State and local codes and regulations.

K. The Contractor shall install appropriate silt screens, personnel and traffic barriers or fencing to protect the work site hazards from pedestrian or vehicle traffic.

L. The Contractor shall ensure that all employees on any of the work sites will wear safety vests with reflective stripes when working exposed to vehicular traffic or areas accessible by the public. Hard hats must be worn when overhead work is being performed or within the boom reach of any crane in use.

M. The Contractor shall perform all work in a manner as not to affect or interrupt any in use water plant equipment and systems while work is being performed. Any shutoffs, water main valve closures or prolonged service interruptions shall be done only with the express consent of the

Owner.

N. The project site working hours shall be from 7:00 AM to 6:30 PM, unless an emergency situation occurs in which case exceptions will be made by the Owner.

O. The Contractor shall at all times during the progress of the work have at the work site an assigned person as the Contractors Agent, Supervisor of Foreman capable of interpreting the specifications and experienced in the type of work being performed. They shall have full authority to take corrective action in any deficiencies noted by the Owners assigned Project

Manager. The contractors assigned Agent, Supervisor or Foreman shall be furnished regardless of the amount of work sublet and shall not be replaced without written notice to the Owners assigned Project Manager except under extraordinary circumstances. The contractors’ site assigned Agent, Supervisor or Foreman shall speak and understand English and have the authority to act on behalf of the Contractor. All communications given to the superintendent shall be binding as if given to the Contractor.

1.2 SCHEDULE REQUIREMENTS

A. The Contractor shall reach substantial completion within130 days or less, (116 days or less for materials procurement and maximum allowable 14 days for physical tank replacements and connections). Shall reach Final Completion within the total project duration of 140 days or less from NTP.

B. The contractor shall conduct initial coordination meetings with SEMCO Utilities Engineering to establish an NTP, a start date and a projected completion date.

C. The contractor shall develop a work site plan with an intended daily schedule to present to the

SEMCO Utilities Engineering assigned Project Manager and secure any required permits required in advance of the project start date.

1.3 MATERIALS

A. The Contractor will have available at the work site the required materials, components and details required and listed herein to ensure a timely and thorough project completion and demonstrate a fully operational bulk tank system.

1.4 2500 GALLON TANKs

A. The new tanks shall be an outdoor rated, vented, vertical, high density polyethylene tanks with a UV inhibitor. The tank shall be rated to 1.7 specific gravity. The tank shall have externally attached base anchor tabs and be equipped with a base outlet valve for tank draining.

B. All connection feed and fill lines shall be Schedule 80 PVC or CPVC and all gaskets shall be Viton.

Piping isolation connectors shall be Chlorobutyl Rubber. All fasteners, anchors, supports, clamps and hangers shall be 316 Stainless Steel

C. The tank shall have a minimum 3-year warranty and the Contractor shall provide a two-year warranty on all supplied materials and workmanship.

Project Management

Seminole County Environmental Services

Utilities Engineering Division