Credit scorecard — Oakville 2026 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.
✓Enhanced SWM (≥80% TSS)
Provincial Enhanced — exceeds Oakville minimums
50%
—Normal SWM (≥70% TSS)
Provincial Normal — meets baseline — not documented
0%
—Basic SWM (≥60% TSS)
Provincial Basic — meets minimum — not documented
0%
Net credit
Up to 50% for non-residential with SWM exceeding minimum design standards
50%
Pre vs post peak discharge
| Storm event | Pre-dev (L/s) | Post-dev (L/s) | Δ |
|---|
| 5-yr | 186 | 101 | −46% |
| 100-yr | 334 | 182 | −46% |
Stormwater controls (4)
OtherRooftop Storage (Controlled)
Surface area0.334 ha
Outletweir
Rooftop area 3340 m2, 12 weirs; stage-storage relationship provided; max head 0.15m, max volume 250.5 m3, max discharge 26.93 L/s
Oil-grit separatorHydroStorm HS 4 OGS
Certified to provide 89% annual TSS removal
SwaleGrassed Swale
Grassed swale with perforated pipe providing 80% TSS removal; located at north side of site
InfiltrationPermeable Pavers with Storage Bed
Permeable pavers with storage bed at walkway/outdoor dining areas (north side and Kerr Street); 80% TSS removal
Best management practices (7)
Rooftop Storage ControlHydroStorm HS 4 Oil/Grit SeparatorGrassed Swale (with Perforated Pipe)Permeable Pavers with Storage BedSilt FenceSediment SocksEntrance Mud Mat
Site characteristics & report metadata
ProjectProposed 6 Storey Retirement Residences at 152 Wilson Street
Project typeRedevelopment
DeveloperSpruce Partners
Existing land usecommercial
Proposed land usesenior care / retirement residential
Site area0.72 ha
TSS removal target89%
Allowable release rate186.0 L/s
Quality control methodoil-grit separator (HydroStorm HS 4), grassed swale with perforated pipe, permeable pavers with storage bed, rooftop flow treated as clean
Extraction audit
Confidence: medium
Completeness: 79%
Source: 51-page PDF
Extractor: PARCELFLOW v1
Validation: review recommended
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.