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 80% (enhanced)
30%
—Runoff Volume
water-balance capture (2%/mm) — not documented
0%
✓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 |
|---|
| 2-yr | 40.41 | 65.76 | +63% |
| 5-yr | 54.32 | 88.4 | +63% |
| 10-yr | 66.91 | 108.89 | +63% |
| 25-yr | 76.84 | 125.06 | +63% |
| 50-yr | 85.78 | 139.6 | +63% |
| 100-yr | 94.92 | 154.48 | +63% |
Stormwater controls (5)
Underground storageParking Detention (A1, A2, A3)
Storage volume49.7 m³
Outletorifice
Outlet invert168.06 m
100-yr HGL169.40 m
Parking surface ponding detention with 250 mm maximum storage depth for 100-year rainfall event
Green roofRoof Storage - New Building (Phase 2)
Storage volume18.2 m³
Surface area0.071 ha
Outletpipe
708 m2 footprint, 95 mm maximum depth, allows 6 L/s release
Green roofRoof Storage - Existing Building (Phase 1)
Storage volume28.9 m³
Surface area0.097 ha
Outletpipe
967 m2 footprint, 91 mm maximum depth, allows 6 L/s release
Underground storageStorm Pipes/Catch Basins/Manhole Storage
Storage within storm pipes, catch basins, and manholes
Oil-grit separatorStormceptor EFO4 at STMH1
Outletpipe
Outlet invert168.05 m
Stormceptor Model EFO4, 80% TSS removal, upstream orifice control flow rate 50.40 L/s, drainage area 0.49 ha, oil/fuel spill risk site
Best management practices (7)
Stormceptor EFO4 oil-grit separatorRoof storage detentionParking surface detentionOrifice control (125 mm diameter)Silt fenceMud mat construction accessDrain inlet protection
Site characteristics & report metadata
Project7198-7214 Airport Road Redevelopment
Project typeRedevelopment
DeveloperArjun Kumar / 2182402 Ontario Inc.
Existing land usecommercial/residential mixed (retail building with asphalt parking and residential dwellings)
Proposed land usemixed residential (4-storey townhouse block with parking, residential addition above existing retail)
Site area0.52 ha
Impervious63% (pre) → 87% (post)
TSS removal target80%
Allowable release rate50.4 L/s
Quality control methodoil-grit separator (Stormceptor EFO4) at storm manhole STMH1
Extraction audit
Confidence: high
Completeness: 96%
Source: 36-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-Stormwater-Management-Report-February-2022-OZOPA-22-27.pdf (36 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.