1629 Main Street West — Parsed SWM Report

Credit scorecard — Hamilton bylaw

Each category awards a maximum percentage of the annual stormwater charge as credit. Evidence is extracted directly from the source PDF — no manual review.

✓On-site controls

documented source control on the site

50%

—Lake Ontario green-space bonus

direct discharge + green-space parcel flag (90% tier) — not documented

Net credit

50% baseline; up to 90% with Lake Ontario direct-discharge + green-space flag

50%

Pre vs post peak discharge

Storm event	Pre-dev (m3/s)	Post-dev (m3/s)	Δ
2-yr	0.13	—	—
100-yr	—	0.127	—

Stormwater controls (2)

Underground storageCistern

Storage volume188.1 m³

Outletorifice

Cistern located within proposed building. Orifice plate (210mm diameter) on downstream manhole. Controls 100-year post-development peak flows to 2-year pre-development rate of 0.130 m3/s. Peak outflow 0.127 m3/s at maximum level of 1.881 m.

Green roofGreen Roof Area

Green roof areas shown on Level 4 of the building in site plan drawings.

Best management practices (5)

underground storage cisterngreen roofsilt fencestreet catch basin sediment trapvehicle tracking control/mud mat

Site characteristics & report metadata

Project1629 Main Street West - Functional Servicing & Stormwater Management Report

Project typeRedevelopment

DeveloperSociety Developments

Existing land usecommercial with paved parking

Proposed land usemixed-use residential/commercial towers

Site area0.74 ha

Impervious89% (pre) → 92% (post)

Allowable release rate130.0 L/s

Quality control methodNo quality control required — all runoff collected by roof drains prior to outletting to cistern and combined sewer

Extraction audit

Confidence: high Completeness: 83% Source: 36-page PDF Extractor: PARCELFLOW v1 Validation: passed

How to read this page. Every value above was extracted from the source PDF by the PARCELFLOW report parser, which combines a layout-robust template detector with a validated extraction stage tuned to Ontario Functional Servicing and Stormwater Management reports. The four-category scorecard maps the parsed evidence onto Mississauga's credit bylaw. Numbers are estimates — engineering review still required before submitting a formal credit application to the City.