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
only some design storms documented
40%
✓Water Quality
TSS removal 80% (enhanced)
30%
✓Runoff Volume
water balance retains 5 mm on site (2% per mm, max 30% at 15 mm)
30%
—Operations
combinable O&A sub-credits — not documented
0%
Net credit
Capped at 50% of annual stormwater charge
50%
Pre vs post peak discharge
| Storm event | Pre-dev (L/s) | Post-dev (L/s) | Δ |
|---|
| 10-yr | 12.8 | 12.24 | −4% |
| 100-yr | 31.4 | 12.24 | −61% |
Stormwater controls (2)
Underground storageCistern
Storage volume30.0 m³
Treatment volume4.7 m³
Outletorifice
Cistern located in basement; provides 30m3 storage above outlet invert for quantity control (23m3 required for 100-yr event); retention volume of 4.65m3 (5mm x 930m2) provided below outlet invert for water balance; controlled by Hydro-Brake Optimum ICD (SHE-0132-8000-1000-8000) set to 8.0 L/s; sump volume 4m3 with footprint 8.0m2 and height 0.5m
Rainwater harvesting / reuseCistern reuse
Retention volume of 4.65m3 intended for landscape irrigation and other internal reuse measures to meet water balance requirement; details to be confirmed in detailed design
Best management practices (6)
Underground cistern storageInlet Control Device (ICD) / Hydro-Brake OptimumRainwater reuse (landscape irrigation)Sediment control fenceGravel construction access padCatchbasin sediment protection devices
Site characteristics & report metadata
Project128 Lakeshore Road East
Project typeRedevelopment
Developer128 Lakeshore Developments Inc.
Existing land usetwo-storey commercial/residential building
Proposed land useeight-storey mixed-use residential with underground parking
Site area0.09 ha
Impervious87% (pre) → 84% (post)
Water balance capture5.0 mm
TSS removal target80%
Allowable release rate12.8 L/s
Quality control methodRooftop runoff credited with 80% TSS removal routed to cistern; landscaped areas credited with 80% TSS removal; no oil-grit separator required
Extraction audit
Confidence: high
Completeness: 100%
Source: 37-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-and-Stormwater-Management-Report-OZ-OPA-22-5-W1-October-2025.pdf (37 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.