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
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 | 107.73 | 107.59 | −0% |
| 100-yr | 262.5 | 249.49 | −5% |
Stormwater controls (5)
Underground storageTank 2 - Surface
Storage volume160.0 m³
Outletpipe
Pumped detention tank for Catchment 203 (at-grade parking/driveway area); controlled pump rate of 102.0 L/s; located in underground parking structure
Underground storageTank 1 - Roof
Storage volume115.0 m³
Outletorifice
Retention & detention tank for Catchment 204 (Building C rooftop); gravity-controlled by 250 mm diameter orifice at 27.5 L/s; retained portion pumped for re-use
Oil-grit separatorJellyfish Filter JF6-5-1
Installed upstream of Tank 2 - Surface for Catchment 203; provides Enhanced Level of Protection (80% TSS removal)
Green roofIntensive Green Roof
Contributes to 44 m3 water balance/erosion control retention volume requirement
Rainwater harvesting / reuseRainwater Harvesting (Tank 1 Dead Storage)
Storage volume44.0 m³
Outletother
Dead storage in Tank 1 - Roof pumped for re-use (irrigation, gray water for amenity space toilets); contributes to 44 m3 water balance retention requirement
Best management practices (6)
Underground storage tank (Tank 2 - Surface)Underground storage/retention tank (Tank 1 - Roof)Jellyfish Filter JF6-5-1Intensive green roofRainwater harvestingRip-rap apron at outlet
Site characteristics & report metadata
Project2570-2590 Argyle Road Infill Development
Project typeRedevelopment
DeveloperRanee Management
Existing land useresidential
Proposed land useresidential
Site area2.15 ha
Water balance capture5.0 mm
TSS removal target80%
Quality control methodJellyfish Filter JF6-5-1 (oil-grit separator) upstream of underground storage tank for Catchment 203; rooftop runoff from Catchment 204 considered clean and requires no treatment
Extraction audit
Confidence: high
Completeness: 83%
Source: 52-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: OPA-OZ-20-017-W7-Functional-Servicing-and-Storm-Water-Management-Report-August-2023.pdf (52 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.