Credit scorecard — Mississauga 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.
—Peak Flow
discharge reduction — not documented
0%
✓Water Quality
TSS removal 86% (enhanced)
30%
✓Runoff Volume
water balance retains 5 mm on site (2% per mm, max 30% at 15 mm)
30%
✓Operations
BMPs + P.Eng present; sub-credit detection pending — full 20% requires explicit O&A items
20%
Net credit
Capped at 50% of annual stormwater charge
50%
Pre vs post peak discharge
| Storm event | Pre-dev (m3/s) | Post-dev (m3/s) | Δ |
|---|
| 2-yr | 0.035 | 0.035 | +0% |
| 100-yr | — | 0.035 | — |
Stormwater controls (4)
Underground storageUnderground Detention Tank
Storage volume59.4 m³
Treatment volume14.1 m³
Outletorifice
Outlet invert79.16 m
Tank dimensions 5.2m (W) x 5.2m (L) x 2.3m (D). Orifice diameter 118mm, discharge coefficient 0.60, max allowable discharge 0.035 m3/s. Tank extended to provide 5mm volume retention (14.1 m3).
Oil-grit separatorStormceptor STC 750
STC 750 achieves 86% TSS removal for Fine (organics, silts and sand) particle size distribution. Drainage area 0.28 ha, 90% impervious. Sized using PCSWMM for Stormceptor.
Green roofGreen Roof
Approx. 120 m2 of green roof proposed on north driveway portion. Used for evapotranspiration to address 5mm water balance requirement.
Rainwater harvesting / reuseIrrigation/Grey Water Reuse System
Stored water from storage tank used for irrigation. Mechanical design to ensure sump storage emptied before switching to potable water. Detailed design deferred to Site Plan Application stage.
Best management practices (5)
Stormceptor STC 750Green RoofUnderground Detention TankIrrigation/Grey Water ReusePermeable Surface Parking
Site characteristics & report metadata
ProjectProposed High-Rise Purpose Built Rental Building at 170 Lakeshore Road East
Project typeRedevelopment
DeveloperLightpoint (170 Lakeshore Road East Port Credit) Inc.
Existing land usecommercial (building and at-grade parking)
Proposed land usehigh-rise residential rental with retail commercial
Site area0.28 ha
Water balance capture5.0 mm
TSS removal target86%
Allowable release rate35.0 L/s
Quality control methodoil-grit separator (Stormceptor STC 750) for surface runoff outside roof coverage areas; green roof and rooftop runoff considered clean
Extraction audit
Confidence: high
Completeness: 92%
Source: 29-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: W1_170_lakeshore_Rd_Functional_Servicing_Report_Dec2021.pdf (29 pages)
Open source PDF →
Starter package
Download credit application package »
10-page PDF: pre-filled Form 2703, starter P.Eng report skeleton, submission checklist. Engineer reviews, adds site inspection + O&M plan, certifies + submits.
Download PDF »
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.