The Filling Station Parcel with a Cleanup Order

Credit basis. The brownfield path requires that the site be documented as contaminated by a regulatory body (or a voluntary cleanup program) and that a site remediation plan be developed and implemented to the satisfaction of that authority. The Phase II ESA plus the state cleanup order establishes the contaminated status cleanly - this is one of the more straightforward documentation packages in the rating system.

Submittal contents: Phase II report, the agency determination or cleanup order, the approved remediation plan, and evidence of implementation or agency sign-off. Reviewers commonly ask for confirmation that the plan was actually carried out rather than merely written; structure the submittal so the remediation report or agency closure letter is produced before the certification review, not after.

Risks the credit does not price:

• Schedule. Remediation is on the critical path for foundations. If excavation and groundwater treatment run long, the whole project slips, and no credit compensates for that.
• Below-grade parking. Excavation into a contaminated aquifer triggers dewatering and disposal of contaminated water - a cost and a permit item often missed in early budgets.
• Vapor intrusion. Chlorinated solvents are the specific risk driver. The design needs a vapor barrier and likely a sub-slab depressurization system, plus indoor air sampling - which lands in Indoor Environmental Quality and in the owner's risk register, not in the site credit.
• Lender and insurer sign-off on residual liability.

Recommendation to the owner: pursue the credit, but only after a remediation cost and schedule estimate from a licensed environmental engineer is in the pro forma.

Bus stop (0.2 mi). Walking distance is fine, but 48 weekday trips is likely to fall short of the service-frequency threshold in the credit. Do not stop at the trip count - pull the full schedule and check trips in both directions across the full service day and on weekends, because both matter and the tally must be documented from published schedules, not from the agency's website summary or the driver's estimate.

Rail station (0.45 mi). Rail service generally uses a longer walking-distance radius than bus, and 0.45 mile falls inside it. This is likely the usable stop.

How to verify - do not use straight-line distance:

1. Walk the route from the functional entry of the building (not the property line) to the station entrance.
2. Measure along the actual pedestrian network with a mapping tool, capturing sidewalks and crossings.
3. Photograph the route: the signalized crosswalk and continuous sidewalks on both sides are evidence of a safe, direct pedestrian route. An un-signalized crossing of a six-lane arterial, a missing sidewalk segment, or a route through a parking lot would be the things that disqualify it.
4. Confirm the station has existing, funded service with published schedules. Planned or under-construction lines cannot be counted.

Disqualifiers to watch: route requiring a mid-block jaywalk, a crossing with no pedestrian signal, a service that exists only at peak hours, or a walking path that is technically shorter but not safe and direct (e.g., through a private site or along a shoulder with no sidewalk). Document the walk in the narrative with a scaled map.

Start by separating two things that are easy to conflate: the credit rewards limited parking capacity, not the fact that the parking is hidden under the building. Below-grade parking reduces visual impact and heat island effects, but it does not by itself earn the parking credit.

Strategy:

1. First check whether the project already qualifies by capping supply at the zoning minimum. If the code minimum is at or above the LEED base ratios for the building type and location, providing exactly the code minimum can satisfy the credit. That is often the cheapest path - it requires no variance, only a zoning code citation and the parking schedule from the drawings.
2. If the code minimum is below the LEED base ratio, the project needs a reduction measured against the credit's base ratios, documented with a calculation showing spaces per unit and per 1,000 ft² of non-residential area.
3. Marketing and management count too. Unbundling parking from residential leases (renting spaces separately) and providing preferred spaces for carpools, vanpools, and low-emitting vehicles supports the credit's intent and is persuasive in the narrative.
4. Do not design to the zoning minimum and then add 40 spaces "just in case." Surplus parking is the most common reason this credit is lost at construction documents, after it was assumed in the pro forma.
5. Add adjacent-credit points here: the same density and transit facts feed the surrounding density and diverse uses credits, so the site walk and the mapped data collection should be done once for all three.