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Plan commission forwards rezoning recommendation for Nutrien West wetland mitigation bank
Summary
After public questions about drainage, property values and stewardship, the commission voted to forward a favorable recommendation on three parcels to rezone them to Greenway so Nutrien West can develop a mitigation-banking wetland restoration project under conservation easements and federal/state permits.
The Porter County Plan Commission voted to forward a favorable recommendation to the county commissioners to rezone three parcels from Rural Residential to Greenway District to allow a mitigation-banking wetland restoration by Nutrien West (cases ZO-2026-9, ZO-2026-10 and ZO-2026-11).
Lyndon Graber of Nutrien West described mitigation banking: the developer restores parcels to provide wetland credits that regulated entities (for example, state DOT projects, pipelines or developers) can purchase to offset permitted impacts in the same watershed. "This is a permanent conservation easement project," Graber said. "It can never be taken off the land after that." He added the project already has federal and state regulatory approvals in process and will be overseen through an interagency review team.
Engineering consultants (V3/B3 Companies) explained the design intent: low-profile berms, controlled outlets and shallow ponding to establish saturated soils and herbaceous wetland vegetation (sedges and rushes), not large open-water ponds. Consultants said the design aims to maintain existing off-site drainage patterns and provide controlled discharge points and erosion protection so adjacent properties are not adversely affected.
Neighbors who testified raised concerns about property values, whether the project would create persistent standing water or cause runoff onto adjacent land, and who would be the long-term steward. Graber and the engineering team answered that the site is in a mapped floodplain but generally shallow and that the project’s hydrology is designed for saturated soil conditions (14–28 days during the growing season) rather than permanent deep pools. Applicants said the bank is largely speculative (credits built in advance of demand), that the project would be monitored until performance standards are met (typically five to ten years), and that a vetted long-term steward would be put in place; the applicant said financial assurances (bonding) are posted so regulators can fund completion if the developer defaults.
Commissioners discussed credit ratios and release schedules; staff/applicant noted that full restoration can achieve a 1:1 credit ratio in some cases, but regulatory agencies and site-specific factors determine demand and final ratios. The applicant reported the south unit is approximately 88 acres and yields 66 credits, with only 20% of those credits released upon approval; additional credits are released over the multi-year performance period.
After questions and discussion, the commission made and seconded a motion to forward a favorable recommendation for all three rezoning petitions to the county commissioners; the motion carried by recorded vote.
Next steps: the recommendation will be considered at upcoming county-commission public hearings; neighbors will have additional opportunity to comment during that process.
