Archives

Sediment Management Options Report (Final)

Final Sediment Management Options Report for the recommended approach to manage the PCB contaminated sediment at Lyons Creek East, Welland.

Ecological Study Report – Lyons Creek East

Report produced by Terrastory outlining the ecological study conducted to characterize baseline ecological conditions and natural heritage features within sections of Lyons Creek East (LCE) affected by legacy sediment contamination.

June 2025 – Lyons Creek East Summary of Sediment Management Options

This summary outlines the sediment management options that were considered and the recommended sediment management plan for remediation of PCB contaminated sediments in areas of Lyons Creek East. A full presentation of the information will be presented on June 18, 2025 in Welland, ON.

PCB Trends in Snapping Turtle Eggs from Lyons Creek East

This report provides insight on PCB contamination trends in Lyons Creek East using common snapping turtles (Chelydra serpentina) as a bio-indicator. Prepared by: K.D. Hughes & S.R. de Solla, Ecotoxicology & Wildlife Health Division, Environment & Climate Change Canada, May 15 2024.

Sediment/Biological Assessment of Lyons Creek East

This report is a compilation of Ministry of the Environment (MOE) studies on the
Polychlorinated Biphenyl (PCB) and metal contamination of Lyons Creek sediments east of the
Welland Canal.

Lyons Creek East Sediment Transport Study

Purpose: to (1) quantify the sediment input to LCE, to assess the rate of accumulation, and to predict the period of time required to accumulate given a depth of sediment; and (2) determine the max. flow velocity in the system that could be sustained without re-suspending bottom sediments and potentially exposing PCB contaminated sediment to erosion.

2021 Lyons Creek East (Niagara River Area of Concern) Sediment Pore Water Survey

Prepared by: M. Graham & J. Peters, Great Lakes Areas of Concern Sediment Remediation Unit, Environment and Climate Change Canada, Apr. 21, 2022.

2022 Lyons Creek East (Niagara River Area of Concern) Sediment Pore Water Survey

Prepared by: M. Graham & J. Peters, Great Lakes Areas of Concern Sediment Remediation Unit, Environment and Climate Change Canada, Aug 11 2023.

Delisting Strategy: Niagara River (ON) Area of Concern

This document was developed to provide the most up-to-date summary of information about the Niagara River’s remaining BUIs, provide guidance for applying specific delisting criteria, and identify the remaining priority actions and appropriate lead organization(s) involved in the RAP who will implement the activities for each impairment.

Biomonitoring Study of Lyons Creek East (2002-2003)

A joint study was undertaken by Environment and Climate Change Canada, and the Ministry of the Environment, Conservation and Parks to address and document the sediment and water quality in Lyons Creek East.

The study was undertaken in 2 parks; 1. a screening survey to identify areas with elevated PCBs, and 2. a survey that included sediment cores, caged mussels, and fish collections to understand…