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 Pre | 5 | 5 | +0% |
Stormwater controls (2)
Underground storageStormwater Cistern
Storage volume241.0 m³
Outletpipe
Located on underground P1 parking level adjacent to Cook Street. Footprint = 71 m2, depth = 3.40 m, provided volume = 241.4 m3. Mechanical pump controls release rate to 5.0 L/s. Water re-use sump depth = 0.25 m, provided water re-use sump volume = 17.8 m3. Designed to attenuate flows up to 100-year storm to 2-year pre-development level. Emergency overflow via access hatch at grade.
Oil-grit separatorOGS EFO4
Oil-Grit Separator to achieve 80% TSS removal. A sump volume of 18 m3 provided within the cistern for stormwater retention, infiltration and/or reuse for water balance requirement.
Best management practices (3)
Underground stormwater cisternOil-Grit Separator (EFO4)Water re-use sump
Site characteristics & report metadata
Project51-55 Dundas Street West & 60-78 Agnes Street Mixed-Use Residential Development
Project typeRedevelopment
Developer55 Dundas Developments Ltd. (D-Stillwaters Development Inc.)
Permit1st OPA / ZBA
Existing land useresidential, commercial, institutional (daycare) with associated parking lots
Proposed land usemixed-use residential (34-storey building with underground parking)
Site area0.44 ha
TSS removal target80%
Allowable release rate5.0 L/s
Quality control methodoil-grit separator (EFO4) providing 80% TSS removal
Extraction audit
Confidence: medium
Completeness: 79%
Source: 47-page PDF
Extractor: PARCELFLOW v1
Validation: review recommended
Source PDF: Functional-Servicing-Report-OZ-OPA-25-18-W7-August-2025.pdf (47 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.