Roger Williams Park Lake Management and Water Quality Controls

The City of Providence is seeking a contractor to control invasive aquatic weeds and algae, including cyanobacteria, in eight Roger Williams Park lakes under a one-year contract with two one-year options.

City of Providence > Department of Parks > Board of Contract and Supply


General
Open
54279
Sep 21, 2026 06:15 PM
$10,000.00
1 year base + 2 × 1 year options
Minority-Owned BusinessWoman-Owned Business
Request for Proposal (RFP)
Local
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Contact
cmelendez@providenceri.gov
25 Dorrance Street, Providence, RI, USA
Submission Instructions
Mail
Board of Contract and Supply, Department of the City Clerk, City Hall, Room 311, 25 Dorrance Street, Providence, RI 02903
Description

The City of Providence Department of Parks is soliciting a contractor to control invasive aquatic weeds and algae in eight lakes at Roger Williams Park: Japanese Gardens, Roosevelt Lake, Willow Lake, Pleasure Lake, Cunliff Lake, Polo Lake, Edgewood Lake, and Elm Lake. The scope includes treatment of Curly Leaf Pondweed, waterweed, fanwort, filamentous and microscopic algae, lily pads, other invasive weed species, and cyanobacteria. The contractor must use the specified aquatic treatment products, coordinate treatment scheduling with the Parks Department, treat all lakes on the same day, obtain required permits and postings, and perform follow-up treatment at no additional cost if specified control results are not achieved. The base contract covers one year of treatment, with optional one-year extensions for fiscal years 2028 and 2029. Bidders must provide individual lake pricing, total pricing, unit prices, and pricing that includes a $10,000 allowance for cyanobacteria treatment and related water-quality work. The bid package must include the required City bid forms, MBE/WBE participation forms or a waiver request when applicable, and a formal proposal with pricing and service details. Qualifications include at least three similar projects completed within the past five years; proof of insurance, licenses, and other supplemental materials are requested only after award.

Classification Codes
NAICS562910Remediation Services
PSCF103Water Quality Support Services
Smart Codes
lake weed controlwater quality treatmentalgae control
Specifications
Service
Timeline
Sep 18, 2026 08:00 PM-Questions Due
Sep 21, 2026 06:15 PM-Bid Submission Deadline and Public Opening (optional)
Bids are submitted in Room 311. Bids will be publicly opened and read at the Board of Contract Meeting in Conference Room 305 on the third floor of City Hall.
Requirements
Required
Scored
  • Minimum 3 references
  • Within the last 5 years
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