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 87% (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 (L/s) | Post-dev (L/s) | Δ |
|---|
| 10-yr | 300.7 | 150 | −50% |
| 10-yr | 4.7 | 4.7 | +0% |
Stormwater controls (5)
Underground storageSWM Tank
Storage volume180.0 m³
Outletpipe
Underground SWM tank (120 m2 footprint) located on north-west boundary adjacent proposed underground parking structure at mid-rise building. Pump controlled release rate of 150.0 L/s. Required storage 156.3 m3, provided 180.0 m3.
OtherRooftop Storage
Storage volume394.6 m³
Outletother
Rooftop storage required 214.2 m3, provided 394.6 m3. Roof discharge rate 18.0 L/s.
Oil-grit separatorOGS 1 - Stormceptor EFO8
Rinker/Imbrium Systems Stormceptor EFO8. Treats 47% of site. Water quality flow rate 27.80 L/s. Drainage area 1.072 ha, 89% imperviousness. 62% TSS removal. Outlets into proposed underground SWM tank.
Oil-grit separatorOGS 2 - Stormceptor EFO10
Rinker/Imbrium Systems Stormceptor EFO10. Treats 53% of site plus flows from OGS 1. Water quality flow rate 38.80 L/s. Drainage area 2.285 ha, 41% imperviousness. 62% TSS removal.
Rainwater harvesting / reuseRainwater Reuse for Irrigation
Storage volume95.4 m³
Outletother
5 mm retention over total impervious area of 19,075 m2 (1.91 ha), equating to required water re-use volume of 95.4 m3. Rainwater reuse for irrigation is the primary means to meet the 5 mm retention requirement.
Best management practices (5)
Oil-Grit Separator (Stormceptor EFO8)Oil-Grit Separator (Stormceptor EFO10)Rooftop StorageUnderground SWM Tank with Pump ControlRainwater Reuse for Irrigation
Site characteristics & report metadata
ProjectResidential Development at 2155 Leanne Boulevard, Mississauga
Project typeRedevelopment
Developer1000293648 Ontario Inc. o/a Dunpar Developments
Existing land usecommercial retail plaza
Proposed land usemixed residential (townhouses and mid-rise)
Site area2.30 ha
Water balance capture5.0 mm
TSS removal target87%
Allowable release rate300.7 L/s
Quality control methodOil-grit separators (Stormceptor EFO8 and EFO10) combined with inherent treatment from rooftops and landscaping
Extraction audit
Confidence: high
Completeness: 92%
Source: 75-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-and-Stormwater-Report-OZ-OPA-26-7-W2-May-2026.pdf (75 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.