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
combinable O&A sub-credits — not documented
0%
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 | — | 172 | — |
| 5-yr | — | 231 | — |
| 10-yr | — | 284 | — |
| 25-yr | — | 359 | — |
| 50-yr | — | 407 | — |
| 100-yr | — | 454 | — |
| Regional (Hurricane Hazel) | — | 206 | — |
Stormwater controls (4)
Underground storageSWM Vault
Storage volume250.0 m³
Outletpipe
Outlet invert153.67 m
Vault dimensions 17.0m x 10.5m x 1.4m deep; provides minimum 250 m3 storage; stormwater pumped out at 10yr allowable release rate of 195.6 L/s with backup pump; emergency overland flow pipe and DICB provided on west side; bottom 0.4m (152.27m to 152.67m) used for 5mm irrigation reuse (71 m3)
Oil-grit separatorStormceptor EF04
Provides Level 1 quality control with 92% TSS removal
InfiltrationPermeable pavers and grassed swales
LID measures including grassed areas, grassed swales and permeable pavers to promote infiltration
Rainwater harvesting / reuseIrrigation Reuse (SWM Vault lower zone)
5.0mm site water balance provided through irrigation reuse between elevation 152.27m and 152.67m; volume = 71 m3 (1.42 ha x 5.0mm)
Best management practices (7)
Stormceptor EF04 oil-grit separatorUnderground SWM Vault with quantity controlPermeable paversGrassed swalesIrrigation reuse (rainwater harvesting)Silt fence (ESC)Mud mat at construction entrance (ESC)
Site characteristics & report metadata
ProjectNYX Tannery LP Functional Servicing and Stormwater Management Report
Project typeRedevelopment
DeveloperNYX Tannery LP / Montcrest Asset Management
PermitOPZR - 104636
Existing land usemixed residential and commercial/industrial
Proposed land usehigh-density residential (14-storey, 633 units) with underground parking
Site area1.42 ha
Impervious90% (pre) → 73% (post)
Water balance capture5.0 mm
TSS removal target92%
Allowable release rate195.6 L/s
Quality control methodStormceptor EF04 oil-grit separator providing Level 1 quality control with 92% TSS removal
Extraction audit
Confidence: high
Completeness: 92%
Source: 59-page PDF
Extractor: PARCELFLOW v1
Validation: passed
Source PDF: Functional-Servicing-Report-OZ-OPA-24-7-W11.pdf (59 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.