Question 1

How clean is Clear Fork Reservoir?

Accepted Answer

Clear Fork Reservoir has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 3.1 ft. Trophic State Index: 61.

Question 2

What is the water clarity of Clear Fork Reservoir?

Accepted Answer

Clear Fork Reservoir has a Secchi depth (water clarity) of 3.1 feet. That is moderate clarity, typical of lakes with some nutrient enrichment.

Question 3

Does Clear Fork Reservoir have an algae problem?

Accepted Answer

Chlorophyll-a (algae) data is not available for Clear Fork Reservoir. Phosphorus and Secchi readings can still indicate bloom risk indirectly.

Question 4

Is Clear Fork Reservoir polluted?

Accepted Answer

Clear Fork Reservoir shows pollution indicators consistent with nutrient over-enrichment (typically phosphorus from agricultural runoff, fertilizer, or failing septic systems). Its grade of F reflects elevated nutrient and algae levels.

Metric	Clear Fork Reservoir	Wisconsin avg
Overall Grade	F	D
Water Clarity (Secchi)	3.1 ft	—
Trophic State Index	61	<50 = clean

How Clean Is Clear Fork Reservoir?

Cleanliness Snapshot

How does Clear Fork Reservoir compare?

More on Clear Fork Reservoir