7564 Tenth Line West — Parsed SWM Report

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

pre-vs-post controlled across multiple storms; avg reduction 12%

40%

✓Water Quality

TSS removal 84% (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

Net credit

Capped at 50% of annual stormwater charge

50%

Pre vs post peak discharge

Storm event	Pre-dev (m3/s)	Post-dev (m3/s)	Δ
2-yr 24-hr	0.099	0.053	−46%
5-yr 24-hr	0.184	0.157	−15%
10-yr 24-hr	0.274	0.259	−5%
25-yr 24-hr	0.354	0.351	−1%
50-yr 24-hr	0.431	0.43	−0%
100-yr 24-hr	0.516	0.494	−4%

Stormwater controls (8)

Underground storageStorm Quantity Control Tank + Pipes & Structures (Catchment 201)

Storage volume2,204.2 m³

Outletorifice

Outlet invert207.70 m

400mm orifice; overflow point at 210.95m to Lisgar Channel; wrapped in impermeable liner; orifice invert 207.70m, tank outlet invert 207.72m

InfiltrationDC4 Infiltration Tank

Storage volume358.7 m³

Surface area0.095 ha

Outletpipe

Open-bottom Brentwood ST-18 system; footprint 951.60m2; retention volume provided 239.70m3; excess flow discharges to SWM facility bypass storm network

InfiltrationDC5 Infiltration Tank

Storage volume365.0 m³

Surface area0.131 ha

Outletpipe

Open-bottom Brentwood ST-18 system; footprint 1306.81m2; retention volume provided 336.00m3; excess flow discharges to SWM facility bypass storm network

Dry detentionDry Pond (Catchment 203)

Storage volume1,263.0 m³

Outletorifice

Outlet invert208.40 m

Two orifice outlets: Orifice 1 = 150mm diameter (invert 208.40m), Orifice 2 = 450mm diameter (invert 208.95m); discharges to Tenth Line swale; temporary solution until future municipal storm sewer available

Oil-grit separatorOGS1 (Stormceptor EFO12)

Treats runoff from area surrounding distribution centres; catchment area 5.10 ha, 75% impervious; 61% TSS removal; captures >90% annual runoff volume

Oil-grit separatorOGS2 (Stormceptor EFO10)

Treats runoff from northwest Data Centre driveway; catchment area 2.30 ha, 48% impervious; 62% TSS removal; captures >90% annual runoff volume

Oil-grit separatorOGS3 (Stormceptor EFO4)

Treats runoff from southeast Data Centre driveway; catchment area 0.40 ha, 56% impervious; 61% TSS removal; captures >90% annual runoff volume

SwaleTenth Line Swale

Existing drainage swale parallel to Tenth Line ROW; receives controlled discharge from dry pond and uncontrolled perimeter areas

Best management practices (6)

Stormceptor oil/grit separatorUnderground storm quantity control tank with impermeable linerFlow Control Roof Drains (FCRDs)Underground infiltration tanks (open-bottom Brentwood ST-18)Dry pondRetention storage (dead storage in storm tanks)

Site characteristics & report metadata

ProjectPrologis Meadowvale Distribution Centre

Project typeNew

DeveloperPetroff Partnership Architects

Existing land usevacant

Proposed land useindustrial

Site area16.17 ha

Water balance capture5.0 mm

TSS removal target84%

Allowable release rate1300.0 L/s

Quality control methodoil-grit separator (Stormceptor) with downstream wet pond (SWM facility); roof areas treated as inherently clean; landscaped perimeter areas treated as clean

Extraction audit

Confidence: high Completeness: 92% Source: 238-page PDF Extractor: PARCELFLOW v1 Validation: passed

Source PDF: Functional-Servicing-Stormwater-Management-Report-OZ-25-21-W9-May-2026.pdf (238 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.