# Iowa City Community School District Bidopportunities #26-14 Sto822305D (Story)

Buland Wetland Construction and Solar Pump System Installation

**Posted:** November 10, 2026
**Respond By:** December 10, 2026
**Identifier:** 26-14 Sto822305D (Story)
**NAICS:** 237990, 237110

Iowa is seeking a contractor to build the Buland nutrient-reduction wetland in Story County and install its water-control and solar-pumping systems.
- **Buyer:** State of Iowa, Department of Agriculture and Land Stewardship, Division of Soil Conservation and Water Quality.
- **Project:** Buland Wetland construction (IDALS No. STO822305D), treating water from an existing ditch.
- **Major work and quantities:** Approximately 34,679 cubic yards of excavation; 1,491 cubic yards of earthfill across three categories; 8,593 cubic yards of topsoil handling; 190 LF of 18-inch and 150 LF of 36-inch reinforced concrete pipe; 1,044 LF of 6-inch perforated and 85 LF of 6-inch non-perforated HDPE pipe; two solar pump systems; one SW-402 pump basin; one 72 x 72-inch modified SW-513 outlet structure; 42.7 tons of Class E riprap; and 11.5 acres of seeding.
- **Solar equipment and named manufacturers/brands:** The specified system includes a 3 HP Carry CP-04 pump (or approved equal), Enfusion Blender solar VFD, two float switches, eight 400 W panels, Sun Rac mounting hardware, and specified protection, disconnect, wiring, and mounting components. Other named brands or suppliers in the specifications include Hickenbottom, Agri Drain, 3M, and Thompson's Water Seal.
- **Other listed materials:** 18- and 36-inch concrete aprons, footings and bar guards; three anti-seep collars; one 8-inch CMP tile outlet; and one project sign panel with two sign posts and installation hardware.
- **Notable requirements:** Engineer approval of shop drawings before ordering the pump basin and outlet structure; specified pipe standards and watertight CMP connections; compaction and rock-removal requirements for earthfill; erosion and pollution controls; native-species buffer seeding; and stopping work and notifying the local Natural Resources Conservation Service office if cultural resources are found. Approved-equal equipment is allowed where specified.
- **Estimated construction value:** $240,000–$360,000.
- **Performance:** No start date or overall duration is provided; construction and seeding have separate completion milestones.

### Description

Construct a wetland to treat water from an existing ditch using a solar-panel-powered pump. Work includes selective clearing, excavation and grading, installation of tile and outlet structures, a pump and tile, riprap placement, and seeding. Approximate quantities include 36,170 cubic yards of earthwork, 1,469 linear feet of pipe, 43 tons of riprap, and 11.5 acres of seeding. Construction is to be completed by September 1, 2027, and seeding by December 15, 2027.

[View original listing](https://bidopportunities.iowa.gov/Home/BidInfo?bidId=10c800dd-7210-47aa-8eb2-ff09c85f396b)