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 — not documented
0%
✓Runoff Volume
water balance retains 20 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
40%
Pre vs post peak discharge
| Storm event | Pre-dev (L/s) | Post-dev (L/s) | Δ |
|---|
| 5-yr | 11.67 | 16.39 | +40% |
| 2-yr Construction | — | 12.14 | — |
Stormwater controls (1)
InfiltrationSoakaway Pits (2 x 20m x 2m)
Storage volume9.6 m³
Treatment volume9.6 m³
Outletoverflow
Two soakaway pits each 20m x 2m, bottom area 40m2, height 0.60m, void ratio 0.40. Infiltration rate 12.8mm/hr (design), drawdown time 46.88hrs < 48hrs. Required detention volume 8.7m3, provided 9.6m3. MOE minimum 20mm on roof area = 5.26m3 < 9.6m3 provided. Percolation test measured permeability 200mm/hr with factor of safety of 3 applied, design value 12.8mm/hr used in calculations.
Best management practices (2)
Soakaway pitsInfiltration trench
Site characteristics & report metadata
ProjectProposed Severance 2045 Heartwood Court
Project typeSubdivision
DeveloperLisa Miron Ernesto Rambaldini
PermitOZ 21-18 W7
Existing land usevacant grass land with dead trees (severed lot)
Proposed land usesingle-family residential
Site area0.37 ha
Impervious0% (pre) → 15% (post)
Water balance capture20.0 mm
Allowable release rate0.1 L/s
Extraction audit
Confidence: high
Completeness: 92%
Source: 53-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: OZ-21-18-W7-Functional-Servicing-Report-November-2024.pdf (53 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.