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Cawkers Creek

Cawkers Creek is a notable watercourse situated southwest of Lake Scugog in the Kawartha region. Originating from the Oak Ridges Moraine, the creek flows northward through Port Perry before emptying into Lake Scugog.It is flanked by the Nonquon River to the west and the South Scugog Tributaries to the east.

The Cawkers Creek watershed encompasses an area of approximately 12 square kilometers, with the creek itself extending over 16 kilometers. The landscape is predominantly characterized by deciduous forests, contributing to 14% natural vegetation cover.Notably, there are no significant natural sites within this watershed.

Environmental assessments have identified concerns regarding water quality in Cawkers Creek. The surface water quality has been rated as poor, with total phosphorus concentrations averaging 0.078 mg/L, exceeding the provincial objective of 0.03 mg/L for rivers and streams. Additionally, the health of benthic macroinvertebrate communities, as indicated by the Family Biotic Index (FBI), is considered fairly poor, with a score of 5.88.

These findings underscore the need for targeted conservation efforts to improve water quality and support the ecological health of the Cawkers Creek watershed. Ongoing monitoring and community engagement are essential to address these environmental challenges and promote the sustainability of this important watercourse.

Green creek flows from left to right

View Map Of

Cawkers Creek

Watershed characteristics

Learn about the characteristics of the Cawkers Creek watershed.

The total watershed area is 12 km² or 1,200 ha and the total watercourse length is 16 km.

The dominant forest type is deciduous forest including: 14% natural cover

None

Environmental conditions

The following grades show the environmental conditions for the Cawkers Creek watershed.

Surface water quality
Indicator Result Grade Status

Total phosphorus

0.078 mg/L

D

Poor

Benthic macroinvertebrates

5.88 (FBI)

D

Fairly poor

The surface water quality grade was based on total phosphorous (TP) and/or benthic macroinvertebrates (aquatic insects) family biotic index (FBI). The provincial water quality objective for TP in rivers and streams is 0.03 mg/L and 0.02 mg/L in lakes. These guidelines were set because levels highter than these guildelines provide conditions for nuisance algae and aquatic plant growth. A TP value below 0.03 mg/L (rivers) or 0.02 (lakes) meets the provincial guidelines and is in the B (good) or A (excellent) grade range, while the result for benthic macroinvertebrates must be 5.00 or lower to receive a B (good) or A (very good to excellent) grade.

Forest conditions
Indicator Area cover Percent cover Grade Status

Forest cover

1.2 km²

9.6%

D

Poor

Forest interior

0.00 km²

0.1%

F

Very poor

Forested riparian cover

0.3 km²

31.2%

C

Fair

The combined forest conditions grade for Cawkers Creek is ranked as fair.

Wetland conditions
Indicator Area cover Percent cover Grade Status

Wetland cover

0.2 km²

1.9%

F

Very Poor

 

 

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