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 92% (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 |
|---|
| 2-yr | 221.2 | 262 | +18% |
| 100-yr | 648.3 | 768.5 | +19% |
Stormwater controls (4)
Oil-grit separatorStormceptor EF5
Provides 60% TSS removal based on CA ETV Size Distribution; conservatively assumed 50% TSS removal. Drainage area 0.62 ha, 68% imperviousness. Water quality flow rate 14.18 L/s.
InfiltrationCULTEC Recharger 330XLHD Underground Infiltration Chambers
Storage volume24.1 m³
Treatment volume24.1 m³
Outletoverflow
24 units occupying 90.8 m2 at southwest corner of development. Bottom of stone elevation 99.16m, 1.56m above highest groundwater of 97.60m. Design percolation rate 7 mm/hr (35 min/cm with 2.5 factor of safety). Drawdown time 46 hours (<48 hr max). Provides WQV of 24.1 m3 (required 23.8 m3) and erosion control volume of 24.1 m3 (required 22.7 m3).
SwaleProposed Swales (north to west perimeter)
Intercepts runoff from Areas A1, A2, A3 and conveys drainage to floor drains connecting to building internal storm sewer system.
OtherRip-rap flow spreader / vegetated filter strip
Tertiary treatment; storm sewer outlet discharges onto rip-rap apron spreader then sheet flows through vegetated ditch before entering Credit River. d50 riprap 150mm (with 1.5 SF) for 525mm storm sewer outlet.
Best management practices (7)
Stormceptor EF5 oil-grit separatorCULTEC Recharger 330XLHD underground infiltration chambersRip-rap flow spreaderVegetated filter stripSwalesCatchbasin sediment/debris trapsCatchbasin filters
Site characteristics & report metadata
Project2935 & 2955 Mississauga Road Functional Servicing and Stormwater Management Report
Project typeRedevelopment
Developer590816 Ontario Inc.
Existing land useundeveloped/unimproved vegetated land
Proposed land usemixed-use residential (12-storey condo + stacked townhouses)
Site area1.03 ha
Impervious0% (pre) → 40% (post)
Water balance capture5.0 mm
TSS removal target92%
Quality control methodtreatment train: oil-grit separator (Stormceptor EF5) + underground infiltration chambers (CULTEC Recharger 330XLHD) + rip-rap flow spreader + vegetated filter strip; catchbasin sumps with sediment/debris traps for Area D2
Extraction audit
Confidence: high
Completeness: 100%
Source: 117-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-Report-OZ-OPA-22-6-W8-May-2026.pdf (117 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.