Parsed SWM report

2163 & 2169 Sixth Line

Proposed Mixed Use Development, 2163 & 2169 Sixth Line · Redevelopment · 2022-06-01

Consultant: Valdor Engineering Inc. Model: PCSWMM Revision: Rev: June 2022
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 eventPre-dev (L/s)Post-dev (L/s)Δ
5-yr163101.7−38%
100-yr286.6162.3−43%
Stormwater controls (4)
Underground storageStormwater Detention Tank (MH.2)
Storage volume90.7 m³
Outletorifice
Outlet invert143.75 m
100-yr HGL145.70 m

171mm diameter orifice plate; located in P1 level of underground parking garage; controls 100-year post-development flow to 162.4 L/s (less than 5-year pre-development rate of 163.0 L/s); HWL at 5yr = 144.79m, HWL at 100yr = 145.70m

Oil-grit separatorStormceptor EFO6

Provides 88% TSS removal; upstream orifice control flow rate 84.63 L/s; drainage area 0.55 ha; 81.5% imperviousness; fine particle size distribution; manufactured by Imbrium Systems Inc.

InfiltrationInfiltration Trench (Brentwood StormTank)
Storage volume17.3 m³
Treatment volume17.0 m³
Outletother

Located at east limit of site; Brentwood StormTank modular units (0.760m H x 0.457m W x 0.914m L); 56 units total; 97% void ratio; trench base area 30.0 sq.m; trench height 0.76m; percolation rate 12 mm/hr; drawdown time 72 hours; also serves water balance / LID function; located downstream of OGS

Green roofGreen Roof System
Surface area0.070 ha

Green roof area 0.070 ha; runoff coefficient 0.40; part of water balance / LID strategy; initial abstraction 5.0mm for green roof area

Best management practices (4)
Stormceptor EFO6 oil/grit separatorInfiltration trench (Brentwood StormTank)Green roof systemUnderground stormwater detention tank
Site characteristics & report metadata
ProjectProposed Mixed Use Development, 2163 & 2169 Sixth Line
Project typeRedevelopment
DeveloperBara Group (River Oak) Inc.
Existing land usecommercial
Proposed land usemixed use residential and commercial
Site area0.72 ha
Water balance capture5.0 mm
TSS removal target88%
Allowable release rate163.0 L/s
Quality control methodoil-grit separator (Stormceptor EFO6) supplemented with infiltration trench in treatment train approach
Extraction audit
Confidence: high Completeness: 83% Source: 78-page PDF Extractor: PARCELFLOW v1 Validation: passed

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.