Monitoring Sites

Groundwater information is collected on an on-going basis at various locations within the program study area.

This information includes groundwater levels, groundwater temperature and chemical analyses. Within the study area there are three main groundwater monitoring networks:

1. ORMGP monitoring network;

2. Provincial Groundwater Monitoring Network (PGMN) operated by the Ontario Ministry of the Environment and partner Conservation Authorities; and
3. Monitoring by municipalities (York, Peel, Durham) associated with water supply from groundwater sources.

Figure 1: ORMGP Groundwater Monitoring Locations.

The ORMGP groundwater monitoring network collects information from select locations shown on Figure 1 and listed in Table 1. Some of the monitoring facilities were installed by program staff and some locations were inherited from other programs as indicated in the table. The flow system occurring with the study area is interpreted to contain various “hydrogeologic settings” including:

Bedrock Valley systems carved by river and glacial erosion;

Tunnel Channel settings where meltwater beneath glacial ice has eroded to various depths into existing geologic deposits;

Till Plain settings where the alternating glacial-interglacial deposits laid down over the last approximately 125,000 years remain largely intact; and

The Lake Iroquois Plain situated along the north shore of Lake Ontario.

The data collected from the various monitoring locations (Figure 2) are used to interpret the behaviour or response of the various hydrogeologic settings, and ultimately to build this knowledge into the regional flow system understanding.

Table 1: ORMGP Groundwater Monitoring Locations.

# YPDT-CAMC Site

Boston Mills Road
High Park
Earl Bales Park
Warden Avenue
UofT 02 (Frenchman’s Bay)
UofT 04 (Frenchman’s Bay)
UofT 05 (Frenchman’s Bay)
UofT 07 (Frenchman’s Bay)
UofT Cherrywood
IWA -EE 1-11
MOE Greenwood
MOE Claremont
UofT Claremont
Port Perry 4th Line

Installed By

ORMGP

Golder Assoc. for the City of Toronto

U of Toronto, M. Meriano, PhD 2007

U of Toronto, R. Gerber, PhD 1999

M.M. Dillon Limited

Ontario MOE (U. Sibul)

U of Toronto, R. Gerber, PhD 1999

Genivar for Durham Region

Install Date

Sept, 2006

Sept, 2003

Sept, 2006

July, 2011

Dec, 2008

Oct, 1994

Dec, 1993

April, 1972

Oct, 1994

Hydrogeologic Setting

Bedrock Valley

Till Plain

Lake Iroquois Plain

Till Plain

Lake Iroquois Plain

Till Plain

Tunnel Channel

Figure 2: ORMGP, PGMN, and Municipal groundwater monitoring locations.

Further information on individual monitoring sites is available below