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Table 1: Summary of Existing Fish and Fish Habitat Conditions

WATERBODY	FLOW (PERMANENT, INTERMITTENT OR EPHEMERAL)	THERMAL REGIME (WARM / COOL / COLD)	SUBSTRATE TYPE	VEGETATION (RIPARIAN & IN-STREAM)	SUPPORTS A FISHERY	FISH SPECIES PRESENT	SENSITIVITY (LOW, MODERATE, HIGH)	RATIONALE FOR SENSITIVITY RANKING
HEALY DRAIN	Intermittent	Warm	Clay, Muck	Phragmites, cattails	None	N/A	N/A	LGL has considered this to be marginal fish habitat with a seasonal warm water fishery even though there is no direct connection to the Detroit River. During the April 2010 field investigations by MH, no flows were observed and no fish species were observed in this channel.

WATERBODY

FLOW (PERMANENT, INTERMITTENT

OR EPHEMERAL)

THERMAL REGIME (WARM / COOL / COLD)

SUBSTRATE

TYPE

VEGETATION (RIPARIAN & IN-STREAM)

SUPPORTS A FISHERY

FISH

SPECIES

PRESENT

SENSITIVITY

(LOW, MODERATE,

HIGH)

RATIONALE FOR SENSITIVITY RANKING

HEALY DRAIN

Intermittent

Warm

Clay, Muck

Phragmites, cattails

None

N/A

LGL has considered this to be marginal fish habitat with a seasonal warm water fishery even though there is no direct connection to the Detroit River. During the April 2010 field investigations by MH, no flows were observed and no fish species were observed in this channel.

3. AQUATIC SPECIES AT RISK

3.1 DETROIT RIVER

A federally and provincially listed Aquatic Species at Risk (SAR), Channel Darter (Threatened), has been identified in the Detroit River and has been captured in the approximate 300 m reach between Healy Drain and Broadway Drain. All mitigation measures outlined in Section 5 of this document must be adhered to at all times throughout proposed work in or near Healy Drain or any other drain/waterbody. The release of any deleterious substances including sediment and sediment laden water must be prevented. The deposition of fine sediments to a watercourse can be detrimental to aquatic organisms as a result of reducing streambed substrate composition. In addition to decreasing egg-to-fry survival rates in fish and impacting macroinvertebrate production, increased suspended sediment loads can clog the gills of fish and their ability to feed or migrate effectively.

3.2 HEALY DRAIN

No Aquatic SAR have been identified for the Healy Drain. Based on the information gathered from the existing conditions reports, it is highly unlikley that any Aquatic SAR present in the Detroit River would occupy the Healy Drain due to unsuitable habitat conditions. The Channel Darter prefers the sandy nearshores of lakes Erie and St. Clair, and streams with sand and gravel bottoms.

4. HEALY DRAIN INFILLING

4.1 SCOPE AND PURPOSE

The prosed infilling of Healy Drain from where the Perimeter Access Road (PAR) crosses Healy Drain, and throughout the remaining upstream portions of the drain, is required to accommodate the future infrastructure development at this location.