Parsed SWM report

159 & 163 Sulphur Springs Road

Ancaster Sulphur Springs Development · Subdivision · 2024-11-01

Consultant: C.F. Crozier & Associates Inc. Engineer: David Wilcox, P.Eng. P.Eng sealed Model: VisualOTTHYMO Revision: Rev.0
Credit scorecard — Hamilton 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.

On-site controls
documented source control on the site
50%
Lake Ontario green-space bonus
direct discharge + green-space parcel flag (90% tier) — not documented
0%
Net credit
50% baseline; up to 90% with Lake Ontario direct-discharge + green-space flag
50%
Pre vs post peak discharge

No quantified pre-vs-post hydraulic events extracted.

Stormwater controls (5)
Underground storageSWM Facility 1 (North Tank)
Storage volume491.0 m³
Outletorifice
Outlet invert205.00 m

E.D. orifice diameter 0.150 m at invert 205.00 m; secondary orifice diameter 0.375 m at elevation 205.60 m; outlets to existing large pond and ultimately Sulphur Springs Creek

Underground storageSWM Facility 2 (South Tank)
Storage volume799.0 m³
Outletorifice
Outlet invert220.10 m

E.D. orifice diameter 0.250 m at invert 220.10 m; secondary orifice diameter 0.525 m at elevation 220.40 m; outlets east to private lands/existing wetland

Oil-grit separatorOGS units (two)

Two OGS units in a treatment train approach with the proposed SWM Facilities for enhanced water quality (80% TSS removal)

BioretentionBioretention swales (preliminary LID)

Preliminary LID strategy; detailed design to be completed in future submissions

InfiltrationInfiltration trenches/soakaway pits (preliminary LID)

Preliminary LID strategy including infiltration trenches/soakaway pits and open-bottom SWM tanks; detailed design to be completed in future submissions

Best management practices (12)
bioretention swalesenhanced grass swalesinfiltration trenchessoakaway pitsdownspout disconnectionopen-bottom stormwater management tanksoil-grit separatorsunderground stormwater management facilitiessilt fenceinterceptor swalesflow check damstemporary silt traps
Site characteristics & report metadata
ProjectAncaster Sulphur Springs Development
Project typeSubdivision
DeveloperMizrahi Developments (2691715 Ontario Limited & 2568843 Ontario Limited)
Existing land useresidential dwellings, wooded and natural areas, ponds
Proposed land useresidential (single detached and townhouse)
Site area10.10 ha
TSS removal target80%
Quality control methodOGS units in treatment train with underground SWM facilities (enhanced protection, 80% TSS removal)
Extraction audit
Confidence: medium Completeness: 58% Source: 204-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.