Chilliwack, BC onsite wastewater guide

Septic systems in Chilliwack: permits, records, inspections and property checks

Chilliwack offers official property and utility mapping showing sewer infrastructure, and its Utilities Department operates the city sanitary system. For any onsite system, confirm health-authority filings separately with Fraser Health before work.

First questionSewer or onsite?
Local lensFraser Valley
Before buyingRecords + condition
Before workLocation + capacity

First, confirm this property’s wastewater service

A city-area guide cannot tell whether a specific parcel is connected to sewer or has an onsite system.

Health authority / onsite records route

Use the health authority route below for onsite-system guidance, filings or records. Confirm sewer connection separately with the municipality or utility.

Open health authority onsite-wastewater page →

Onsite system confirmed

Find the parcel’s system approvals and verify current rules with the responsible local authority before work.

Start with provincial guidance →

Service unknown

Check utility bills and permit records; ask the local authority to confirm current service before planning an onsite inspection or repair.

How to confirm service →
Provincial rule: British Columbia’s Sewerage System Regulation requires an authorized person to plan, construct or supervise most onsite sewerage-system work covered by the regulation, with filings made to the health authority before construction and certification after completion. Open provincial / regional onsite-wastewater authority →

Chilliwack: verified service and approval steps (October 2026)

The City’s GIS map offers parcel and engineering information; the City identifies its sanitary sewer network and wastewater treatment service. A mapped sewer main or parcel-layer feature is not evidence of a final connection or onsite system acceptance.

Next step: Look up the parcel on Chilliwack’s official map and ask Utilities/Engineering to confirm connection status; request any existing onsite filings through Fraser Health and consult an Authorized Person before alterations.

Direct research sources

Verification boundary: Mapping may be incomplete; no property’s service was determined. This page provides a defensible local research route, not approval of an individual system.

Who approves septic work around Chilliwack?

British Columbia’s Sewerage System Regulation uses an Authorized Person model. For typical residential systems, an Authorized Person files the required system information with the regional health authority and later files certification after construction.

For records, ask for the filing/record of sewerage system, site plan or as-built information, and any letter/certification on file. The municipality may control building or zoning issues, but the regional health authority is the key onsite-sewerage records route.

Official sources for this guide

If sewage is backing up or surfacing, stop using affected fixtures and contact a qualified professional or the responsible authority. Never enter a septic tank.

Start with these official sources

Sources rechecked 15 October 2026. Municipality connection/record services are distinct from onsite permits, and property conditions must be confirmed.