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 Pre | 141.34 | 130.69 | −8% |
| 100-yr Post | — | 586.68 | — |
Stormwater controls (5)
Underground storageUnderground Stormwater Tank (Catchment 201)
Storage volume700.0 m³
Treatment volume548.4 m³
Outletorifice
Outlet invert124.83 m
210mm orifice plate; controlled post-development discharge 129.56 L/s (plus 1.13 L/s long-term dewatering = 130.69 L/s); tank built into underground parking structure for Buildings C and D
Oil-grit separatorStormceptor EF8
Downstream of underground stormwater tank and orifice plate; sized for 60% TSS removal (ETV PSD equivalent to 80% Stormceptor Fine PSD); upstream orifice control flow rate 130.69 L/s; water quality flow rate 39.18 L/s
SwaleBioswale
Storage volume71.9 m³
Treatment volume68.5 m³
Outletoverflow
Stone trench sized to retain 5mm rainfall event (68.50 m3 required, 71.90 m3 provided); height 0.70m, width 1.20m; located along south portion of site; drains to low-point at north-east property line
Green roofIntensive Green Roof (future consideration)
To be considered at later stages of detailed design
Rainwater harvesting / reuseRainwater Re-use (future consideration)
Rainwater harvesting via pumping of dead storage in Catchment 201 stormwater tank; re-use for toilets in amenity space and green roof/landscape irrigation; to be designed by Mechanical Engineer at detailed design stage
Best management practices (6)
Underground stormwater tankOrifice plate (210mm)Stormceptor EF8 oil/grit separatorBioswaleIntensive green roof (future)Rainwater harvesting / re-use (future)
Site characteristics & report metadata
Project1840–1850 Bloor Street East Functional Servicing & Preliminary Stormwater Management Report
Project typeRedevelopment
DeveloperRanee Management
Existing land useresidential (two 14-storey apartment buildings with surface and underground parking)
Proposed land useresidential (two 18-storey towers with podium and parking structure, infill)
Site area3.93 ha
Water balance capture5.0 mm
TSS removal target80%
Allowable release rate141.3 L/s
Quality control methodoil-grit separator (Stormceptor EF8) downstream of underground storage tank with orifice plate control, plus bioswale LID
Extraction audit
Confidence: high
Completeness: 83%
Source: 53-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-and-Preliminary-Stormwater-Management-Report-August-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.