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Perimeter drainage topics for Delta properties

Four planning paths cover perimeter replacement, sump systems, accessible camera inspection, and surface drainage. Each page outlines common use cases, a typical industry process, cost factors, limitations, and questions to take to a qualified provider or the City of Delta. You can also request a drainage review.

Contextual stock photo, not a Delta Perimeter Drainage project. Ilya Semenov / Unsplash

Perimeter Drain Replacement

Planning considerations for replacing clogged, damaged, or collapsed foundation drainage lines.

Questions to ask when evidence suggests a foundation drainage line may be damaged or broadly obstructed.

A replacement scope may address pipe, clean aggregate, filter protection, cleanouts, fall, a sump or approved discharge route, backfill, finished grade, and restoration. Site conditions and City of Delta requirements determine what belongs in a project-specific scope.

Full details, process, and FAQs →

Sump Pump Installation

Planning considerations for sump basins, primary pumps, backup options, and discharge routes.

Basin, pump, backup, electrical, control, and discharge considerations for active drainage.

Some flat lots use a sump where gravity drainage is limited. A qualified assessment should consider basin volume, inflow, pump capacity, backup power, check valves, electrical requirements, and a lawful discharge route. Short cycling can have more than one cause and should not be treated as proof that a larger pump is required.

Full details, process, and FAQs →

Drain Camera Inspection

Look inside accessible perimeter lines before you commit to full excavation.

What an accessible camera inspection may show, where it may stop, and what it cannot prove.

When a usable cleanout or access point exists, a camera may show roots, silt, offsets, standing water, or collapse. Not every perimeter system is reachable, and a camera view has limits. Findings can inform questions about monitoring, localized repair, or broader replacement without guaranteeing which scope is appropriate.

Full details, process, and FAQs →

Surface Drainage Corrections

Correct negative grade, downspout discharge, and yard ponding that load the foundation.

Grade, downspout, swale, ponding, erosion-control, and discharge questions for surface water.

Surface ponding, reverse grade, blocked swales, and roof-water discharge near a wall can add water at the foundation. Surface drainage and below-grade drainage should be considered together. Any proposed discharge or connection must follow applicable City of Delta requirements.

Full details, process, and FAQs →