StreamWatch Assessment Details at Johnson_Park
General Information

Investigator #1 Davis Bush (The Watershed Institute)
Investigator #2 None
Assessment Date April 29, 2025
Assessment Time 11 a.m.
Assessment Type(s) StreamWatch Schools

Weather Condition and Visual Assessment

Current Weather Partly cloudy
Time Since Last Rain or Snowmelt 24-48 hours ago
Water Color Clear
Water Odor Normal
Water Odor Other Description N/A
Turbidity Unknown
Water Movement Moderate/Ripples
Surface Coating None
Aquatic Vegetation Amount Absent
Aquatic Vegetation Type Unknown
Algae Amount Scarce
Algae Type Biofilm

Simple Habitat Assessment

Woody Debris Amount Moderate
Woody Debris Type Attached
Tree Canopy Mostly Open (25-50%)
Land Use Characteristics Recreational

Chemical Assessment Measurement(s)

Air Temperature (°C) 19.0
Water Temperature (°C) 16.67
Nitrate Nitrogen (ppm) 1.0
Phosphates (ppm) Unknown
pH 8.0
Turbidity (JTU) 10.0
Dissolved Oxygen (ppm) 9.0
Salinity (ppt) Unknown


Macroinvertebrates


Plecoptera (Stoneflies) Unknown
Ephemeroptera (Mayflies) 3
Trichoptera (Non-net-spinning caddisflies) 8
Megaloptera (Dobsonflies, fishflies, and alderflies) Unknown
Elmidae (Riffle beetles larvae/adults) Unknown
Psephenidae (Water pennies) 5
Prosobranchia (Right-handed/gilled snails) Unknown
Athericidae (Aquatic snipe flies) Unknown
Zygoptera (Damselflies) 3
Anisoptera (Dragonflies) Unknown
Isopoda (Aquatic sow bugs) Unknown
Amphipoda (Scuds) 5
Tipulidae (Crane flies) Unknown
Bivalvia (Clams/mussels) Unknown
Decapoda (Crayfish) Unknown
Hydropsychidae (Net-spinning caddisflies) Unknown
Chironomidae (Midges) Unknown
Simuliidae (Black flies) 13
Turbellaria (planarians) 7
Hirudinea (leeches) Unknown
Archaeopulmonata (Left-handed/lunged snails) Unknown
Oligochaeta (Aquatic worms) Unknown
Syrphidae (Rat-tailed maggots) Unknown

Site Photo(s)