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
BMP present, TSS % not stated
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
30%
Pre vs post peak discharge
| Storm event | Pre-dev (m3/s) | Post-dev (m3/s) | Δ |
|---|
| 2-yr | 0.014 | 0.019 | +36% |
| 5-yr | 0.018 | 0.025 | +39% |
| 10-yr | 0.023 | 0.031 | +35% |
| 25-yr | 0.029 | 0.039 | +34% |
| 50-yr | 0.035 | 0.048 | +37% |
| 100-yr | 0.041 | 0.055 | +34% |
Stormwater controls (2)
InfiltrationInfiltration Trench
Storage volume8.2 m³
Treatment volume8.2 m³
Outletoverflow
19 m length x 1.2 m width x 0.9 m depth x 0.4 porosity = 8.2 m3; located in rear yards; footprint area 22.8 m2; max drain time 48 hrs; infiltration rate 20 mm/hr (sandy loam)
SwaleProposed Drainage Swale
Drainage swales along north and east property boundaries; outlet to public boulevard and existing roadside ditch
Best management practices (5)
Infiltration trenchDrainage swaleIncreased topsoil depth (300 mm)Roof leader discharge to splash pads and landscape areasSump pumps for foundation drainage
Site characteristics & report metadata
ProjectProposed Residential Development at 1489 Hurontario Street
Project typeRedevelopment
DeveloperMilani Group
Existing land useresidential
Proposed land usetownhouse residential
Site area0.17 ha
Water balance capture5.0 mm
Quality control methodLID measures including infiltration trenches and increased topsoil depth; driveway area limited to 8% of site; roof leaders directed to landscape areas
Extraction audit
Confidence: high
Completeness: 88%
Source: 35-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-and-Stormwater-Management-Report-OZ-OPA-24-13-W1-and-21T-M-24-6-W1-February-2025.pdf (35 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.